Velocity

Velocity PHTM2080H Phantom II Heat Only Boiler Works

Velocity-PHTM2080H-Phantom-II-Heat-Only-Boiler-Works

Product Information

Specifications
This product is the PHTM II Boiler. Below are the specifications:
  • Model: PHTM II
  • Installation Type: Residential
  • Approval: Listed by the Massachusetts Board of Plumbers and Gas Fitters
  • Required Installation: By a licensed Plumber or Gas fitter in Massachusetts
  • Date: 8/23

Product Usage Instructions

Installation
Before proceeding with the installation, make sure to read the instructions carefully. Contact a qualified installer for assistance if needed.
Operating
Once the boiler is installed, follow the start-up and checkout procedure outlined in the manual to ensure proper operation.
Service and Maintenance
Regular service and maintenance are essential for the longevity of the boiler. Refer to the service and maintenance section in the manual for detailed instructions.

Frequently Asked Questions (FAQ)

Q: Can I install the boiler myself?
A: No, this boiler must only be installed by a qualified installer or service agency to avoid risks of personal injury or property damage.
Q: Where can I find the latest Approval Code for Massachusetts?
A: You can find the latest Approval Code on the Massachusetts Board of Plumbers and Gas Fitters website or consult your local Sales Representative.

Installation, Operating and Service Instructions for
II
Models: · PHTM2080H · PHTM2120H · PHTM2120HB · PHTM2150H · PHTM2180H

TO THE INSTALLER:
Affix these instructions adjacent to boiler. Provide model number and serial number when seeking information and support.

TO THE HOMEOWNER:
Retain these instructions for future reference. Contact heating installer or technician for all issues and support.

Version en Español disponible en el web del fabricante. www.velocityboilerworks.com
! WARNING
This boiler must only be installed, serviced, or repaired by a qualified installer, service agency or gas supplier. Improper installation, adjustment, alteration, service or maintenance can cause severe personal injury, death, or substantial property damage. For assistance or additional information, consult a qualified installer, service agency, or the gas supplier. Read these instructions carefully before installing.
110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
The Massachusetts Board of Plumbers and Gas Fitters has listed the Phantom II Boiler. See the Massachusetts Board of Plumbers and Gas Fitters website for the latest Approval Code or ask your local Sales Representative. The Commonwealth of Massachusetts requires this product to be installed by a licensed Plumber or Gas fitter.

The following terms are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to important information concerning product life.

! DANGER
Indicates a hazardous situation that, if not avoided, will result in death or serious injury.

! CAUTION
Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.

! WARNING
Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

NOTICE: Indicates special instructions on installation, operation, or service which are important but not related to personal injury hazards.

! DANGER
Explosion Hazard. DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.
If you smell gas vapors, DO NOT try to operate any appliance – DO NOT touch any electrical switch or use any phone in the building. Immediately, call the gas supplier from a remotely located phone. Follow the gas supplier’s instructions or if the supplier is unavailable, contact the fire department.
! WARNING
This boiler must only be serviced and repaired by qualified installer, service agency or gas supplier.
· If any controls are replaced, they must be replaced with identical models. · Read, understand and follow all the instructions and warnings contained in all the sections of this
manual. · If any electrical wires are disconnected during service, clearly label the wires and assure that the wires
are reconnected properly. · Never jump out or bypass any safety or operating control or component of this boiler. · Assure that all safety and operating controls and components are operating properly before placing
the boiler back in service. · Annually inspect boiler. · Annually inspect all vent gaskets and replace any exhibiting damage or deterioration.

2

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
1 Installer or Qualified Service Agency Read Before Proceeding

! WARNING
Asphyxiation Hazard, Burn Hazard, Electrical Shock Hazard.
· Carefully read all instructions in literature packet and posted on boiler before attempting installation, startup, or service of this boiler. Perform steps in order given. Failure to follow all instructions in proper order could result in severe personal injury, death or substantial property damage.
· Use proper personal protective equipment when installing, servicing, or working near this boiler. Materials of construction, flue products, and fuel contain alumina, silica, heavy metals, carbon monoxide, nitrogen oxides, and/or other toxic or harmful substances that can be hazardous to health and life and that are known to the State of California to cause cancer, birth defects, and other reproductive harm.
· Do not disconnect pipe fittings on boiler or in heating system without first verifying system is cool and free of pressure and that your clothing will protect you from a release of hot water or steam. Do not rely solely on boiler temperature and pressure gage when making this judgement.
· Install all guards, cover plates, and enclosures before leaving boiler in operation.
· Disconnect electrical supply before installing or performing maintenance.
· Always use a combustion analyzer to verify proper operation. See Section 14 Start-up and Checkout for procedure and guidelines for checking carbon monoxide (CO) levels. Failure to use a combustion analyzer could cause operation of boiler with elevated (CO) levels, resulting in severe personal injury, death or substantial property damage.
· Default altitude setting is 0-2,000 ft. (610 m). See Section 14: Start-up and Checkout for elevations above 2,000 ft. (610 m).
· For 150 and 180 LP installations above 2,000 ft. (610 m), conversion kit 111745-01 is required.

NOTICE: Size boiler properly relative to design heat load or, if using DHW priority, the peak hot water load, whichever is larger. A grossly oversized boiler will cycle excessively leading to premature failure of boiler and its components. Warranty does not cover damage from excessive cycling.
· For heating systems employing convection radiation (baseboard or radiators), use an industry accepted sizing method such as the I=B=R Guide RHH published by the Air Conditioning, Heating and Refrigeration Institute (AHRI).
· For new radiant heating systems, refer to radiant tubing manufacturer’s boiler sizing guidelines.
· For system including indirect water heater, ensure boiler has output called for per indirect water heater manufacturer’s instructions.
1. Phantom II boiler is a Direct Vent space heating boiler.
2. A hot water boiler installed above radiation level or as required by the authority having jurisdiction must be provided with a low water cutoff (LWCO) device. This boiler is equipped with a UL353 listed flow switch which provides low water protection on this boiler. Where authority having jurisdiction requires a separate LWCO, the following kits are available:
· Auto reset LWCO: 105591-01
· Manual reset LWCO: 108182-01
Factory installed flow switch in this boiler meets requirements of 248 CMR 5.00 Massachusetts Amendments to NFPA 54 Section 5.10(6) 10.3.5 Safety Control.
3. Inspect shipment carefully for signs of damage. See Figure 6-1 for location of parts shipped loose with boiler. Any claim for damage or shortage in shipment must be filed immediately against carrier by consignee. No claims for variances or shortages will be allowed by boiler manufacturer, unless presented within 60 days after receipt of equipment.
NOTICE: When replacing control, use boiler control service part listed in Section 20 Service Parts. Boiler control service part is compatible for all models. Factory installed control is only compatible with purchased boiler.

110332-05 – 8/23

3

PHTM II Installation, Operating & Service Instructions
2 User/Homeowner Read Before Proceeding

! WARNING
Asphyxiation Hazard. Fire Hazard. · A qualified installer, service agency or gas supplier should annually inspect boiler including annually inspecting all vent gaskets and replacing any exhibiting damage or deterioration.
· If you are not qualified to install or service boilers, do not install or service this one.
· Carbon monoxide is an odorless, deadly gas that may be introduced into your home by any malfunctioning fuel burning product or vent system failure. It is strongly recommended that CO alarms be installed near bedrooms and on all levels of building to warn you and your family of potential CO exposure.
· Do not block air flow into or around boiler. Insufficient air may cause the boiler to produce carbon monoxide or start a fire.

NOTICE: Protect your home in freezing weather. A power outage, safety lockout, or component failure will prevent your boiler from lighting. In winter your pipes may freeze and cause extensive property damage. Do not leave heating system unattended during cold weather unless alarms or other safeguards are in place to prevent such property damage.
! CAUTION
Burn Hazard. Keep children and pets away from hot surfaces of the boiler including boiler piping, vent piping, and vent terminals.
NOTICE: Boiler may leak water at the end of its useful life. Be sure to protect walls, carpets, and valuables from water that could leak from boiler.

4

110332-05 – 8/23

3 Specifications
Table 3-1: Ratings

PHTM II Installation, Operating & Service Instructions

Model Number
PHTM2080H PHTM2120H PHTM2120HB PHTM2150H PHTM2180H

Input1 (MBH)

Min3 Max

8

80

13.6 120

20 150 20 180

DOE Heating Capacity (MBH) 75
112
141 169

AHRI Net Rating2 (MBH)
65

AFUE 95

97

95

123

95

147

95

1 Input for installations up to 2,000 ft. (610 m) with min vent length. See Table 3-3 and Table 3-4 for derate at max vent length and altitude. 2 Net AHRI Water Ratings shown are based on a piping and pickup allowance of 1.15. The manufacturer should be consulted before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent operation, extensive piping systems, etc. 3 For altitudes above 2,000 ft. (610 m), PHTM2080H minimum input increased to 10 MBH.

Table 3-2: Dimensions and Connections

Model Number

Depth

Width

in. (mm) in. (mm)

Height in. (mm)

Space Heating Water
NPT, in.

Gas NPT

PHTM2080H

16.3 (413) 17.8 (453) 29.8 (757)

1

1/2

PHTM2120H PHTM2120HB

16.3 (413) 17.8 (453) 29.8 (757)

1

1/2

PHTM2150H

20.4 (518) 17.8 (453) 29.8 (757)

1

1/2

PHTM2180H

20.4 (518) 17.8 (453) 29.8 (757)

1

1/2

Maximum Allowable Working Pressure psig (kPa)
50 (345)
50 (345)
50 (345) 50 (345)

Table 3-3: Air Intake and Vent Lengths

Model Number

Intake/Vent Size in. (mm)

Min Length ft. (m)

PHTM2080H

Standard w/ increaser

2 (60) 3 (80)

2.5 (0.76) 2.5 (0.76)

PHTM2120H

Standard

PHTM2120HB w/ increaser

2 (60) 3 (80)

2.5 (0.76) 2.5 (0.76)

PHTM2150H PHTM2180H

Standard w/ increaser

2 (60) 3 (80)

2.5 (0.76) 2.5 (0.76)

Max Length ft. (m)
70 (21.3) 135 (41.1) 70 (21.3) 135 (41.1) 70 (21.3)* 135 (41.1)

Approx. Derate at Max. Length (%) 6 1 7 1 9 5

* Reduced to 50 eq. ft. (15.2 m) for 150 and 180 boiler LP installations above 8,000 ft. (2,438 m).

110332-05 – 8/23

5

3 Specifications (continued)

PHTM II Installation, Operating & Service Instructions

Table 3-4: Altitude De-rates [%/1,000 ft. (305 m) Above Sea Level

Boiler Model
PHTM2080H PHTM2120H PHTM2120HB PHTM2150H PHTM2180H

2,000 to 6,000 ft. (611 m to 1,828 m)

NG

LP

0%

0%

1.2%

3.5%

0%

2.6%

0%

0%

0%

0%

6,0001 to 8,000 ft. (1,829 m to 2,438 m)

NG

LP

0%

0%

0.9%

2.5%

0%

1.8%

0%

0%

0%

0%

8,001 to 10,000 (2,439 m to 3,079 m)

NG

LP

0%

0.3%

0.7%

1.9%

0%

1.4%

0%

0%

0%

0%

NOTE: These de-rates are for minimum vent. When calculating de-rate from altitude and vent length, altitude de-rate is applied first.

Table 3-5: Inlet Gas Pressure Range

Min in. wc (kPa)

Natural Gas

2.5 (0.62)

LP Gas

8.0 (1.99)

Max in. wc (kPa) 14.0 (3.48)

Table 3-6: Weights and Volume

Shipping Model Number Weight lb.
(kg)

PHTM2080H PHTM2120H PHTM2120HB PHTM2150H PHTM2180H

107 (49) 112 (51) 132 (60) 132 (60)

Empty Boiler Weight lb. (kg) 71 (32)
76 (35)
103 (47) 103 (47)

Shipping Crate D in. (mm)
41.4 (1050) 41.4 (1050) 41.4 (1050) 41.4 (1050)

Shipping Crate W in.
(mm)
20.0 (508)

Shipping Crate H in.
(mm)

Water Content gal (L)

18.3 (465) 0.5 (1.9)

Heat Exchanger Surface Area
ft.2 (m2)
9.99 (0.9)

20.0 (508) 18.3 (465) 0.75 (2.8) 11.99 (1.11)

20.0 (508) 22.3 (567) 1.0 (3.8) 17.98 (1.67) 20.0 (508) 22.3 (567) 1.0 (3.8) 17.98 (1.67)

Electrical Requirements: 120 VAC, 60 Hz, 1-ph. 1.8A for boiler and pump + current draw of any external pumps connected to boiler. Controls: Boiler flow switch and integrated manual reset high limit provided with boiler are both UL-353 listed. LP Gas Conversion: Boiler is shipped from factory configured for natural gas and is field convertible to LP gas. See Section 14 Start-up and Checkout for instructions to convert to LP gas. Altitude: Only part no. containing H (i.e. PHTM2180HNG1HUA0) is listed for 0 to 10,100 ft. (3,079 m). See Section 14: Start-up and Checkout for altitude conversion instructions. For part no. containing S (i.e. PHTM2180CNG1SUA0), boiler is listed for 0 to 2,000 ft. (610 m). Do not install above 2,000 ft. (610 m).

6

110332-05 – 8/23

2
3 Specifications (continued)

REV.

EN

A

103-143-14599

PHTM II
DATE 9/3/2021

Installation, Opera1ting & Service Instructions

REVISIONS

DESCRIPTION

DWN CHK APVD

PRODUCTION RELEASE

EJL

Vent

Air Intake

B

B

Front View

Low Voltage Knockouts

120 VAC Knockouts

Boiler Supply

Gas
Condensate Trap Cleanout

Boiler Return

A

Condensate Drain

A

Bottom View

UNLESS OTHERWISE NOTED: ALL DIMENSIONS IN INCHES.
TOLERANCES: X.X ±.1 X.XXX ±.005 X.XX ±.03 ANGLE ±1°

THIRD ANGLE PROJECTION

PROPERTY OF
U.S. Boiler Company, Inc. LANCASTER, PA
THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION AND ITS CONTENTS ARE THE SOLE PROPERTY OF U.S. BOILER COMPANY, INC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF U.S. BOILER COMPANY, INC. IS STRICTLY PROHIBITED.
2

MATERIAL:
ITEM NFUiMgBuErRe: 3-7: Boiler Connections
FIRST USE: ALTA
TITLE:
GENERAL CONFIGURATION HEAT ONLY UNITS

DES: EJL

SCALE: 1:10

CHK: —

SIZE: A

APVD: –DATE:
09/03/2021

SHEET: 1 OF 1 REVISION:
A

DRAWING NUMBER:
TS-103-62

1

110332-05 – 8/23

7

4 How It Works

PHTM II Installation, Operating & Service Instructions

1. Heat exchanger Water flows through heat exchanger’s stainless steel tubes. Heat is transferred to water as flue products are cooled below point of condensation for maximum heat transfer and efficiency. An enclosure contains and directs flue products to vent piping.
2. Blower Pulls air and gas through venturi. Air and gas mixture is then pushed into burner where it burns inside combustion chamber.
3. Gas valve Precisely controls gas flow rate in response to electronic signal from control.
4. Venturi Creates suction at gas valve outlet and mixes air and gas before they flow into blower.
5. Burner (not shown) Constructed of stainless steel, burner uses pre-mixed air and gas to meet modulation requirements.
6. Boiler control (not shown) Monitors internal and external sensors and controls blower, gas valve, and pumps to meet heating and DHW demand. Control is a “gas adaptive system” that regulates air and gas flow mixture by measuring flame signal and adjusting gas valve to achieve a target air-fuel ratio. This eliminates need to make throttle screw or offset adjustments. System is self-calibrating and continuously maintains air-fuel ratio at desired value.
7. 120 VAC connection board Provides field connections for line voltage boiler pump and two additional pumps (system pump and aux. pump).
8. Low voltage connection board Provides field connections for thermostats, external limits, remote firing devices (4-20mA or 0-10V), header sensor, outdoor sensor and LWCO.

9. Control enclosure Houses boiler control and provides access to installed fuses and spare fuses.
10. Local user display Allows review of boiler status and parameter adjustment. In event of fault condition, LCD display turns red and fault condition is displayed.
11. Flue temperature sensor Used to monitor flue gas exiting boiler. Boiler control will alarm, reduce boiler firing rate and shut down boiler if flue temperature is too high.
12. Boiler supply temperature sensor (UL 353 Listed) Dual element temperature sensor used to monitor boiler water exiting heat exchanger. Boiler control uses supply temperature to initiate CH burner demand, adjust firing rate to maintain CH setpoint temperature and shut down the boiler if supply temperature is too high.
13. Boiler return temperature sensor Used to monitor boiler water entering heat exchanger.
14. Ignitor/flame sensor A single ignitor/flame sensor is used to both provide ignition energy and monitor flame.
15. Air pressure switch Proves air flow (closes) prior to boiler ignition. Switch is proven open prior to starting blower.
16. Boiler Pump, field installed (not shown) External boiler pump provides flow through heat exchanger.
17. Boiler flow switch (UL 353 Listed) Proves water is present in boiler and flow rate is adequate prior to starting boiler.
18. Condensate trap (not shown) Allows combustion chamber and vent condensate to drain from boiler while retaining flue products in boiler.

8

110332-05 – 8/23

4 How It Works (continued)

PHTM II Installation, Operating & Service Instructions

15
13 17

11 1

14

2 4

9

12

10

3 87
Figure 4-1: How It Works

110332-05 – 8/23

9

5 Locating Boiler

PHTM II

Code Requirements

! WARNING
Asphyxiation Hazard. Adequate combustion and ventilation air must be provided to assure proper combustion and to prevent damage to boiler components. Provide ventilation openings into boiler room as described in “Air for Ventilation” in this manual. Combustion air must be brought to boiler from outdoors using an intake piping system meeting requirements in Section 7.

1. Installations must conform to the requirements of the authority having jurisdiction or, in the absence of such requirements, to the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or Natural Fuel Gas and Propane Installation Code, CAN/CSA B149.1.
2. All wiring must comply with National Electrical Code ANSI/NFPA 70 (in the USA) or the Canadian Electrical Code CSA C22.1 (in Canada) and any local regulations.
3. Where required by authority having jurisdiction, installation must conform to Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD1.
Location Considerations
1. If replacing an existing boiler, check for and correct common system problems including:
A. System leaks, which can result in premature heat exchanger failure from oxygen corrosion or hardness deposits
B. Inadequate freeze protection resulting in system freezing and leaking
C. Dirt or debris left in existing piping if it has not been properly flushed or cleaned
D. Incorrectly sized expansion tank
2. Boiler is listed for indoor installation only. Do not install where boiler will be exposed to freezing temperatures or ambient air temperatures in excess of 104°F (40°C). Do not install in an attic.
3. Protect gas ignition system components from water (dripping, spraying, rain, etc.) during appliance operation and service (circulator replacement, condensate trap cleaning, control replacement etc.).

10

Installation, Operating & Service Instructions
4. Locate boiler to avoid water damage in case there is a leak. If boiler must be located in an area sensitive to water damage, install drain pan underneath boiler and pipe to a suitable drain location. Manufacturer will not be held responsible for water damage resulting from this appliance or any of its components.
5. Check for and remove any combustible materials, gasoline, or other flammable liquids from area around boiler.
6. Check for and remove any potential combustion air contaminants from area around boiler and area around vent/air termination. See Table 5-2.
! WARNING
Explosion Hazard. Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance. Do not install vent/air termination where gasoline or other flammable vapors or liquids are stored. Avoid locating vent/air termination near chemical products containing chlorine, chlorine based salts, chloro/fluorocarbons, paint removers, cleaning solvents, and detergents. Boiler could ignite vapors from flammable liquids resulting in explosion or fire.
Wall Mounting
1. Wall must be plumb and comprised of cement, brick, block, or wooden studs on 16 in. (406 mm) centers.
2. If flooding is possible, elevate boiler to prevent water reaching boiler.
3. Ensure boiler location minimizes risk of water damage from valves, pumps, etc.
Clearances
1. Provide clearances between boiler jacket and combustible material in accordance with authority having jurisdiction. Minimum clearances to combustible material shown in Figure 5-1.
2. Provide practical service clearances. 24 in. (610 mm) service clearance are recommended from left side, right side and front. If providing less than 24 in. (610 mm) front clearances are recommended, ensure access through a door. Minimum 6 in. (150 mm) clearance required to remove side panels.
3. Boiler must not be installed on carpeting.
NOTICE: If recommended service clearances are not provided, it may be necessary to remove boiler for service.
110332-05 – 8/23

5 Locating Boiler (continued)

PHTM II Installation, Operating & Service Instructions

Ventilation Air
1. Combustion air must be obtained directly from outdoors, however ventilation openings may still be required to prevent overheating of boiler components if boiler is installed in small space such as a closet.
2. If a 24 in. clearance from boiler sides, front, and bottom can be maintained with all doors to the boiler room closed, no ventilation openings are required.

3. If 24 in. clearances described in (2) cannot be maintained, provide two openings into room, one near floor and other near ceiling. Top of upper opening to be within 12 in. (305 mm) of ceiling and bottom of lower opening within 12 in. (305 mm) of floor. Minimum free area 100 in.2 (650 cm2) for each opening. This free area takes into account blocking effect of grills and louvers. If using screens, minimum screen size 1/4 in. (6.4 mm).

Closet Door

1 2

(13mm)*

Vent

Air

1 4

(6mm)

This boiler is listed for closet installation with the following clearances from the boiler jacket to combustible construction:
Top: 814″ (210mm), Sides: 12″ (13mm), Front: 12″ (13mm), Bottom: 6″ (150mm) Clearances also apply to non-combustible walls, doors, ceilings and floors. Clearances from piping to combustible construction: Non-Concentric Vent (exhaust):14″ (6mm) Concentric Vent or Air Intake Piping: 0″ Hot Water Piping: 14″ (6mm)
*Recommended Service Clearances: Sides, Front and Bottom: 24″ (610mm)

8

1 4

(210mm)

0-12″ (0-305mm)
Ventilation Opening (if required)

1 2

(13mm)*

1 2

(13mm)*

Closet Door

6″ (150mm)*

Ventilation Opening (if required)
0-12″ (0-305mm)
Provide access to this area for inspection and cleanout of condensate trap

Figure 5-1 : Minimum Clearances to Combustible Construction

110332-05 – 8/23

11

5 Locating Boiler (continued)

PHTM II Installation, Operating & Service Instructions

4. If boiler is installed in room with other appliances, provide adequate air for combustion and/or ventilation in accordance with other appliance manufacturer’s instructions and applicable code. If other appliance(s) require two openings at least 100 in.2 (650 cm2) each, no additional openings are required for this boiler.
Combustion Air and Venting
! WARNING
Asphyxiation Hazard. Boiler requires a special venting system designed for positive pressure. Supplied vent connector connects to CPVC, polypropylene, and stainless steel venting listed in Section 7, General Venting. Failure to vent boiler in accordance with these instructions could cause products of combustion to enter the building resulting in severe personal injury, death or substantial property damage.
! DANGER
Component Malfunction. Outdoor combustion air must be piped directly to boiler air connection. Ensure combustion air does not contain contaminants and is not drawn from an area likely to have contaminants per Table 5-2. For example, never pipe combustion air from areas near swimming pools or laundry room exhaust vents. Contaminated combustion air will damage boiler resulting in severe personal injury, death or substantial property damage.
1. Use only vent and air piping and termination methods listed in Section 7, General Venting. Vent and air piping must terminate either horizontally through a sidewall or vertically through a roof or chase. Locate boiler so vent and air intake piping can be routed through building and properly terminated.
2. Ensure installation does not exceed maximum air and vent pipe lengths and terminations are located in acceptable location per these instructions and all applicable local codes.

Table 5-2: Corrosive Combustion Air Contaminants and Sources
Contaminants to avoid: Spray cans containing chloro/fluorocarbons (CFC’s) Permanent wave solutions Chlorinated waxes/cleaners Chlorine-based swimming pool chemicals Calcium chloride used for thawing Sodium chloride used for water softening Refrigerant leaks Paint or varnish removers Hydrochloric acid/muriatic acid Cements and glues Antistatic fabric softeners used in clothes dryers Chlorine-type bleaches, detergents, and cleaning solvents found in household laundry rooms. Adhesives used to fasten building products and other similar products Excessive dust and dirt
Areas likely to have contaminants: Dry cleaning/laundry areas and establishments Swimming pools Metal fabrication plants Beauty shops Refrigeration repair shops Photo processing plants Auto body shops Plastic manufacturing plants Furniture refinishing areas and establishments New building construction Remodeling areas Garages with workshops

12

110332-05 – 8/23

5 Locating Boiler (continued)

PHTM II Installation, Operating & Service Instructions

Connecting New Boiler to Existing Vent System
! WARNING
Asphyxiation Hazard. If any of below conditions cannot be met, existing vent system must be updated or replaced. Failure to follow these instructions could cause products of combustion and/ or carbon monoxide to enter living space, resulting in severe personal injury, death or substantial property damage.
1. If using existing vent system to vent new boiler, check the following: A. Material and manufacturer are listed in Section 7 General Venting. B. Proper size and length per Table 7-7. C. Appropriate supports to prevent sagging and vertical movement. D. Minimum slope per Section 7 guidelines. E. Terminations and their location comply with Section 7 General Venting, Section 8 Sidewall Direct Venting, or Section 9 Vertical Direct Venting. F. Seals and connections per Section 7 General Venting and/or vent system manufacturer’s instructions. System must be tested per procedure Removing Existing Boiler in this section.
G. Vent pipe and components should be replaced if there is any question to their integrity.
Removing Existing Boiler
! DANGER
Asphyxiation Hazard. Do not vent this boiler into a common vent with any other appliance. Connecting this boiler to a common vent will cause products of combustion and/or carbon monoxide to enter living space as well as appliance malfunction, resulting in severe personal injury, death or substantial property damage.
When an existing boiler is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it.
At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation:
110332-05 – 8/23

1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion, and other deficiencies which could cause an unsafe condition.
3. Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers.
4. Place in operation the appliance being inspected. Follow the Lighting (or Operating) Instructions. Adjust thermostat so appliance will operate continuously.
5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe.
6. After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-burning appliance to their previous condition of use.
7. Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1/NFPA 54. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Chapter 13 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
Residential Garage Installation
1. If installing in residential garage or adjacent space open to garage that is not part of living space:
A. Burner and burner ignition devices must be a minimum of 18 in. (46 cm) above floor.
B. Boiler must be located and/or protected to prevent damage from moving vehicle.
2. Follow local codes for locating a residential boiler in a garage or National Fuel Gas Code, ANSI Z223.1/NFPA 54. in absence of such codes.
13

6 Preparing Boiler

PHTM II Installation, Operating & Service Instructions

Unpack Boiler
Remove boiler and parts carton from outer shipping carton.
! CAUTION
Boiler Damage.
· Do not attempt to lift boiler using water or gas pipe connection as hand holds.
· Do not drop boiler. Damage to boiler can result.
· Do not rest boiler on bottom with side panels removed. Boiler should be hung from wall bracket.

! CAUTION
Heavy Object. Boiler weighs up to 130 lb. (59 kg). Two people are required to lift boiler onto wall mounting bracket. Ensure wall bracket is anchored to structure capable of supporting weight of boiler and attached piping when filled with water. Areas subject to earthquakes may have special requirements that take precedence over requirements in these instructions.

What’s In The Box (service part shown) 107160-01 Vent connector 2 in. 110882-01 Wall bracket and clips 108215-01 Temperature and pressure gauge 110878-01 DHW connection fittings (2) metric to copper 111422-01 Adapter gas metric to 1/2 in. NPT 109038-01 Relief valve 30 PSIG
Boiler pump Grundfos 26-99 (obtain locally) Pump flanges 1 in. (2) obtain locally

Figure 6-1: What’s In The Box

14

110332-05 – 8/23

6 Preparing Boiler (continued)

PHTM II Installation, Operating & Service Instructions

Install Vent Connector
1. Remove vent connector and screws from parts carton.
2. Check vent reducer on top of heat exchanger to ensure it is installed properly.
! WARNING
Asphyxiation Hazard. A boiler operating with an improperly installed vent reducer (3 in. to 2 in.) could cause unreliable operation at elevated carbon monoxide levels resulting in severe personal injury, death, or substantial property damage.

Vent Connector
Flue gas sample port facing front of boiler

Attach with (4) screws

3. Lubricate heat exchanger vent gasket with soapy water.
4. Insert vent connector through jacket into heat exchanger with flue gas sample port facing forward. See Figure 6-2.
5. Tighten 4 screws.

Figure 6-2: Installing Vent Connector

110332-05 – 8/23

15

6 Preparing Boiler (continued)

PHTM II Installation, Operating & Service Instructions

Mount Boiler
1. Wall bracket is designed to mount on studs with 16 in. (406 mm) centers or a masonry wall. For other stud spacing, mount bracket to 3/4 in. (19 mm) plywood or horizontal 2 x 4 anchored to studs.
! CAUTION
Heavy Object. Do not mount boiler to a hollow wall. Boiler must be anchored to studs.
2. Mark wall bracket hole locations using dimensions shown in Figure 6-3. Ensure bracket is level.

3. For wood studs, drill 3/16 in. (4.8 mm) pilot holes “A” and “B” and attach bracket using provided 5/16 in. x 2 in. lag screws and washers. For wood studs with drywall or paneling greater than 1/2 in. (12 mm) thick, metal studs, or masonry wall, use anchors suitable for boiler weight and appropriate for wall material.
4. Hang boiler on wall bracket. See Figure 6-4. 5. Attach bottom retaining clips to boiler and mark
hole locations. Drill 3/16 in. (4.8 mm) pilot holes “C” and “D” and attach to wall using provided 5/16 in. x 2 in. lag screws or other anchors appropriate for wall material. 6. Verify boiler is level and plumb.
Wall Bracket

16″ (406mm) 14″ (356mm) 9″ (229mm)
1″ (25mm)
A .4″ (10mm)

(2X) Retaining Clip
B

Boiler

Vent CL Air CL

30″ (762mm) 1″ (25mm)

Boiler Supply & Return CL Gas CL Condensate Drain CL
Boiler Outline

2 X 4 Wood Stud

See detail
(4X) 5/16″ X 2″ Lag Screw
(4X) 5/16″ Flat Washer

Drywall or other sheathing
Rear of Boiler

Support Rail
Retaining Clip

Installed Retaining Clip Detail

C

D

5″ (127mm) 11″ (279mm) 14″ (356mm)

Figure 6-3: Wall Layout and Mounting Holes 16

Figure 6-4: Mounting Boiler on Wall 110332-05 – 8/23

7 General Venting

PHTM II Installation, Operating & Service Instructions

Direct Vent Sidewall Termination Options

Figure 7-1: Sidewall Termination with Fittings see Section 8 for details

Figure 7-2: Sidewall Low Profile Termination – see
Section 8 for details

Direct Vent Vertical Termination Options

Figure 7-3: Sidewall Concentric Termination see Section 8 for details

Figure 7-4: Vertical Termination with Fittings see Section 9 for details
110332-05 – 8/23

Figure 7-5: Vertical Concentric Termination – see
Section 9 for details

Figure 7-6: Vertical Termination with Abandoned B-vent or
Chimney Chase – see Section 9 for details
17

7 General Venting (continued)

PHTM II

Vent and Air Sizing
! WARNING
Asphyxiation Hazard. · Failure to vent this boiler in accordance with these instructions could cause products of combustion and/or carbon monoxide to enter living space, resulting in severe personal injury, death or substantial property damage.
· Vent installations shall be in accordance with provisions of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or “Natural Gas and Propane Installation Code, CAN/CSA B149.1, or applicable requirements of the local building codes.
· This boiler requires a special venting system. Use only CPVC, PVC, or polypropylene venting systems listed in Tables 7-11 or 7-16.
· Thoroughly inspect finished vent and air piping to ensure air-tightness and compliance with provided instructions and code requirements.
· Do not mix components from different venting systems.
· Covering non-metallic vent pipe and fittings with thermal insulation is prohibited.
· Follow all local codes for isolation of vent pipe when passing through floors or walls.
· Do not use a barometric damper, draft hood, or vent damper with this boiler.
· Do not connect any other appliance to vent pipe or multiple boilers to a common vent pipe.
· Follow instructions in Section 5, Locating Boiler, when removing a boiler from an existing vent system.
· Failure to comply with any of the above requirements could result in severe personal injury, death or substantial property damage.

Table 7-7: Vent and Air Sizing

Model Number

Vent/Air

Min

Max

Size in. Equivalent Equivalent

(mm) Length ft. (m) Length ft. (m)

All Sizes

2 (60) 3 (80)

2.5 (0.76) 2.5 (0.76)

70 (21.3)* 135 (41.1)

See Table 3-3 for max vent de-rate.

*Reduced to 50 eq ft. (15.2 m) for 150 and 180 LP installations above 8,000 ft. (2,438 m)

18

Installation, Operating & Service Instructions
1. Min and max lengths are calculated separately for air and vent. For example, max length 135 ft. (41.1 m) means up to 135 ft. (41.1 m) air piping and up to 135 ft. (41.1 m) vent piping.
2. If using 2 in. x 3 in. increaser, use max 12 in. (305 mm) of 2 in. pipe before increaser. For equivalent length, count only 3 in. (80 mm) pipe starting from increaser.
3. Maximum length of flexible polypropylene venting is reduced due to higher pressure drop. See Table 7-10.
4. If using B-vent air chase, 1 ft. (0.30 m) B-vent equals 1 equivalent ft. ( 0.30 m).

Table 7-8: CPVC/PVC Fitting Equivalent Lengths

Fitting

Equivalent Length ft. (m)

2 in.

3 in.

90° Short Elbow

6.0 (1.8) 10 (3.0)

90° Sanitary Elbow 2.6 (0.8) 4.0 (1.2)

45° Elbow

1.5 (0.5)

2 (0.6)

Table 7-9: Rigid PolyPro Fitting Equivalent Lengths

DuraVent PolyPro

Centrotherm Selkirk

InnoFlue

PolyFlue

2 in. (60 mm) 45° elbow

3 ft. (0.91 m)

3 ft. (0.91 m)

3.3 ft. (1.0 m)

2 in. (60 mm) 90° or 87° 5 ft. (1.5 m) elbow

5 ft. (1.5 m)

4.8 ft. (1.5 m)

3 in. (80 mm) 45° elbow

3 ft. (0.91 m)

3 ft. (0.91 m)

3.6 ft. (1.1 m)

3 in. (80 mm) 90° or 87° 7 ft. (2.1 m) elbow

7 ft. (2.1 m)

7.2 ft. (2.2 m)

Table 7-10: Flexible Polypropylene Equivalent Length for 1 ft. (0.30 m) Measured Length

DuraVent PolyPro Flex

Centrotherm InnoFlue Flex

Selkirk Polyflue Flex

2 in.

2 ft.

(60 mm) (0.61 m)

2.5 ft. (0.76 m)

2.5 ft. (0.76 m)

3 in.

2 ft.

(80 mm) (0.61 m)

2.3 ft. (0.70 m)

2.36 ft. (0.70 m)

! WARNING
Asphyxiation Hazard. 2 in. (60 mm) max vent length reduced to 50. eq. ft. (15.2 m) for 150 and 180 LP installations above 8,000 ft. (2,438 m). Failure to comply could cause unreliable operation at elevated carbon monoxide (CO) level, resulting in severe personal injury, death or substantial property damage
110332-05 – 8/23

7 General Venting (continued)

PHTM II Installation, Operating & Service Instructions

5. Example equivalent length calculation for 2 in. vent:
A. 1 ft. CPVC straight pipe =1 eq ft. B. 90° CPVC short elbow = 6 eq ft. C. 1.5 ft. CPVC straight pipe=1.5 eq ft. D. Coupling = 0 eq ft. E. 10 ft. PVC straight pipe = 10 eq ft. F. 90° PVC sanitary elbow = 2.6 eq ft. G. 15 ft. PVC straight pipe = 15 eq ft. H. PVC coupling (terminal) = 0 eq ft. I. Total vent length = 36.1 eq ft.
(acceptable length per Table 7-7)
6. Listed Air Piping Materials
A. PVC/CPVC B. Polypropylene C. B-vent double wall vent (with joints and
seams sealed with RTV silicone)
7. Listed Vent Materials
A. CPVC/PVC – See Table 7-11 B. Polypropylene – See Table 7-16
CPVC/PVC Venting
! WARNING
Asphyxiation Hazard. · Use only vent materials, primer, and cement listed in Table 7-11 to make vent connections.
· Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radal® (polyphenolsulfone) in venting systems is prohibited.
· PVC vent systems must include at least 30 in. (760 mm) of CPVC pipe and one CPVC elbow between boiler and PVC vent piping.
· CPVC is required within any interior space where air cannot circulate freely, including a vertical or horizontal chase, inside a stud wall, in a closet, and through wall penetrations.
· Maintain clearances to vent piping per Figure 5-1.
· Failure to comply with venting instructions could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
110332-05 – 8/23

NOTICE: PVC may not be used to penetrate combustible or non-combustible walls unless all of the following conditions are met. If any of these conditions cannot be met, use CPVC for wall penetration. See Figure 7-14.
· Wall penetration is at least 66 in. (1.7 m) from boiler measuring along vent pipe.
· Wall is less than or equal to 12 in. (305 mm) thick.
· Air space shown in Figure 7-14 is maintained around outside diameter of vent.

1. Slope CPVC/PVC vent pipe not less than 1/4 in. per foot (21 mm per m) upwards from boiler to vent terminal for condensate drainage.

2. Support CPVC/PVC pipe at intervals not exceeding 4 ft. (1.2 m).

3. Be sure to use appropriate primer and cement

when joining CPVC to PVC. The following or

equivalent may be used to join CPVC to PVC:

A.

Primer: IPS P-70

B.

Cement: IPS 790

Table 7-11: Listed CPVC/PVC Vent Materials

Vent Pipe
Vent Fittings
Primer/ Cement

Material CPVC, sched. 40 or 80 PVC, sched. 40 or 80 PVC, DWV CPVC, sched. 80 PVC, sched. 40 PVC, sched. 80 PVC, DWV CPVC PVC

Standard ASTM F441 ASTM D1785 ASTM D2665 ASTM F439 ASTM D2466 ASTM D2467 ASTM D2665 ASTM F493 ASTM D2564

NOTICE: In Canada, CPVC and PVC vent pipe, fittings, and cement/primer must be ULC-S636 listed.
4. Work from boiler towards vent or air termination. Do not exceed maximum equivalent lengths shown in Table 7-7. See Table 7-8 for equivalent lengths of elbows and fittings.
5. Starting from the boiler, first 30 in. (760 mm) of vent pipe and first elbow must be CPVC. 30 in. (760 mm) CPVC pipe may be cut at any location and CPVC elbow installed between two resulting CPVC pipes before transitioning to PVC. PVC coupling may be used to join CPVC to PVC vent piping. See Figure 7-12.
19

7 General Venting (continued)

PHTM II

6. CPVC/PVC vent starter kits are available. Kits include 30 in. (760 mm) CPVC pipe, 90° short CPVC elbow, PVC coupling (vent terminal), 90° short PVC elbow (air terminal), and 2 terminal screens. Components in these kits are not ULC-S636 listed and are therefore not usable in Canada.
A. 2 in. kit: 107039-01
B. 3 in. kit: 111945-01
7. Allow for 3/8 in. (9.5 mm) of thermal expansion per 10 ft. (3.0 m) of CPVC/PVC pipe. If a straight run of pipe exceeds 20 ft. (6.0 m) and is restrained at both ends, an offset or expansion loop is required per Figure 7-15. If a straight horizontal run of pipe exceeds 20 ft. (6.0 m) and is restrained at one end with an elbow at the other, ensure hanger or guide is not less than Y in from elbow per Figure 7-15. Thermal expansion fittings not permitted.
8. All air piping may be PVC.
9. Vent and air can be up-sized to 3 in. for longer runs. If upsizing to 3 in. vent material, the following is required:
A. 2 in. CPVC vent piece (max 12 in. 305 mm) (field supplied).
B. 2 in. x 3 in. CPVC increaser (field supplied, Lasco 9829-338, Spears 829-338C or IPEX 9829338 or equivalent).
C. 3 in CPVC/PVC vent starter kit (purchased separately, see above).
D. Similar PVC fittings for air intake.
NOTICE: Increaser must be installed in vertical section of pipe. See Figure 7-13.
10. Cut pipe squarely and debur inside and outside of pipe ends after cutting.
11. Dry fit all vent and air components before cementing any joints.
12. Use field supplied primer and cement appropriate for materials being joined. Follow primer and cement instructions to join pipe and fittings.
13. Clean all pipe ends and fittings with appropriate primer before cement. Apply primer to both pipe and fitting socket before applying cement.
14. Boiler vent connector is gasketed. Lubricate gasket with soapy water, insert pipe until it bottoms out, and tighten clamp.
15. Boiler air connector in PVC socket fitting. Drill 7/32 in. (5.5 mm) hole in air connector. Drill 1/8 in. (3.2 mm) hole in air pipe to align with hole
20

Installation, Operating & Service Instructions

in connector. Insert pipe into air connector and use #10 x 1 in. sheet metal screw to secure. Seal joint between air connector and pipe with RTV silicone.

16. To the extent possible, slope horizontal air

piping towards outdoors.

PVC coupling may be used to join CPVC to PVC vent pipe.

To vent termination

At least 30in. (760mm) of CPVC pipe and one CPVC elbow required between boiler and PVC vent piping.

From air termination

Clamp

Figure 7-12: Near Boiler CPVC/PVC Venting

At least 30in. (760mm) of CPVC pipe and one CPVC elbow required between boiler and PVC vent piping.

PVC coupling may be used to join CPVC to PVC vent piping.

To vent termination
From air termination

3in. X 2in. CPVC Increaser
Max. 12in. (305mm) 2in. CPVC pipe

3in. X 2in. PVC Increaser
Max. 12in. (305mm) 2in. PVC pipe

Clamp

Figure 7-13: Near Boiler CPVC/PVC Venting with Increaser
Note: Length of 2 in. pipe is counted toward 30 in. CPVC requirement.
110332-05 – 8/23

7 General Venting (continued)

PHTM II Installation, Operating & Service Instructions

Maximum Wall Thickness (“T”)

2″*

6″

12″

(50mm) (150mm) (305mm)

Minimum air space around pipe (“C”)

0″*

1″

1-3/4″

(0mm) (25mm) (45mm)

*Wall must be of non-combustible construction

PVC Vent Pipe

“C”

One end of opening may be closed

Boiler

66″ Min (168cm)

“T” Wall

Figure 7-14: PVC Venting Wall Penetration Clearance
Loop (horizontal only)
(top view)

2Y/5

6″ (150mm) Min

Y/5 Length of straight run between anchors (“X”)

6″ (150mm) Min

Pipe Dia., in. 2
3

X, ft. (m) 20 (6.1) 30 (9.1) 40 (12.2) 50 (15.2) 60 (18.3) 20 (6.1) 30 (9.1) 40 (12.2) 50 (15.2) 60 (18.3)

Y, in. (cm) 41 (104) 50 (127) 58 (147) 65 (165) 71 (180) 50 (127) 61 (155) 70 (178) 79 (201) 86 (218)

Key Anchor (restricts linear movement)

Hanger (allows linear movement)

110332-05 – 8/23

Can use either anchor or hanger
Figure 7-15: CPVC/PVC Venting Expansion Loops 21

7 General Venting (continued)

PHTM II Installation, Operating & Service Instructions

Polypropylene Venting
! WARNING
Asphyxiation Hazard. · Use only vent materials listed in Table 7-16 to make vent connections. Consult vent manufacturer’s instructions for required support and special connections.
· Follow vent manufacturer’s instructions supplied with vent system.
· Do not mix vent systems of different types or manufacturers.
· Maintain clearances to vent piping per Figure 5-1.
· Failure to comply with venting instructions could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
! WARNING
Asphyxiation Hazard. All polypropylene vent systems rely on gaskets for sealing. Ensure gaskets are installed in each female end of vent pipe or fitting. Failure to make proper joint connections could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
NOTICE: Polypropylene vent connections must be secured by vent manufacturer’s joint connector.
1. Slope polypropylene vent pipe not less than 5/8 in. per ft. (52 mm per m) upwards from boiler to vent terminal for condensate drainage.
2. Support polypropylene venting per vent manufacturer’s instructions.
3. Examine all components for possible shipping damage prior to installation.
4. Work from boiler towards vent or air termination. Do not exceed maximum equivalent lengths shown in Table 7-7. See Table 7-9 for equivalent lengths of elbows and fittings.
5. Only cut polypropylene vent pipe as permitted by vent manufacturer and in accordance with their instructions. Ensure cut end is square and deburred prior to assembly.

Table 7-16: Listed Polypropylene Vent Materials (ULC-S636 Listed)

Manufacturer DuraVent Centrotherm Selkirk

Model Polypropylene Single Wall Rigid PolyPro Flex InnoFlue Single Wall Rigid InnoFlue Flex PolyFlue Single Wall Rigid PolyFlue Single Wall Flex

6. Boiler vent connector is gasketed. Lubricate gasket with soapy water, insert pipe until it bottoms out, and tighten clamp. See Figure 7-18.
7. Assemble remainder of vent system in accordance with vent manufacturer’s instruction being sure to provide for thermal expansion. Clamp sections together as directed by vent manufacturer.
8. All air piping may be PVC or polypropylene. PVC to polypropylene adapter required at boiler connection if using polypropylene air piping.
9. Vent and air can be up-sized to 3 in. for longer runs. Requires 2 x 3 in. polypropylene increaser. Vent increaser must be directly attached to boiler vent connector and must be installed in vertical section of pipe. If using polypropylene air piping, increaser must be directly attached to PVC to polypropylene adapter and must be installed in vertical section of pipe. See Figure 7-19.
10. If using flexible polypropylene:
A. Maximum length of corrugated flexible venting will be reduced vs. rigid pipe due to higher pressure drop of flexible venting. See Table 7-10.
B. Store vent material in ambient space 41°F (5°C) or warmer before beginning installation. Observe vent manufacturer’s instructions for storing and handling this pipe.
C. Use only in vertical or near vertical installations with bends no greater than 45°. Maximum two offsets (four bends).

22

110332-05 – 8/23

7 General Venting (continued)

PHTM II Installation, Operating & Service Instructions

Table 7-17: Listed Polypropylene Vent Fittings

Joint Connector Increaser

Length
2 in. (60 mm) 3 in. (80 mm) 2 in. (60 mm) to 3 in. (80 mm)

DuraVent PolyPro 2PPS-LC 3PPS-LC
2PPS-X3L

PVC to PP Adapter 2 in. (60 mm)

2PPS-ADL

Centrotherm InnoFlue
IANS02 IANS03
ISIA0203
ISAGL0202 adapter + IAFC02 clamp

Selkirk PolyFlue
PF-LB PF-LB or 4PF-LB 2PF-2I3 + PF-LB
locking band
N/A

Joint connector required at all joints in venting system
Clamp

Vent Air
PVC to polypropylene adapter required when using polypropylene air piping

Joint connector required at all joints in venting system
2in X 3in (60mm X 80mm) increaser
Clamp

Vent Air
PVC to polypropylene adapter required when using polypropylene air piping

Figure 7-18: Near Boiler Polypropylene Venting

Figure 7-19: Near Boiler Polypropylene Venting with Increaser

110332-05 – 8/23

23

8 Sidewall Direct Venting

PHTM II Installation, Operating & Service Instructions

Determine Terminal Location
! WARNING
Asphyxiation Hazard. · Follow these instructions when determining vent terminal location. Failure to comply could result in severe personal injury, death or substantial property damage. · A gas vent extending through an exterior wall shall not terminate adjacent to a wall or below building extensions such as eaves, parapets, balconies, or decks.
1. Do not exceed maximum equivalent vent and air pipe length in Table 7-7.
2. Consider surroundings when selecting terminal location:
A. Locate terminal so flue gas will not damage nearby plants or air conditioning equipment or be objectionable to building owner.
B. During cold weather, a visible cloud of flue gases will be emitted from terminal. Avoid areas where this could obstruct window view or be otherwise objectionable.
C. Flue gas may condense or freeze causing water or ice buildup on objects surrounding structure. Move or protect these objects if they are subject to damage from condensate.
D. Avoid possibility of accidental contact of flue gas with people or pets.
E. Avoid locating terminal where wind currents could affect performance or cause recirculation. Areas to avoid include inside building corners, near adjacent buildings or surfaces, windows wells, stairwells, alcoves, courtyards, or other recessed areas.
3. Locate terminals so they are not likely to be damaged by foreign objects such as stones or balls, or subject to buildup of leaves or dirt.
4. Maintain clearances to vent terminal per Figure 8-1.
A. Minimum 12 in. (305 mm) from any door, window or other gravity air inlet.
B. Minimum 3 ft. (900 mm) above any forced air inlet located within 10 ft. (3.1 m).

C. Minimum 12 in. (305 mm) from inside corner. 6 ft. (1.8 m) is generally recommended and required when window and/or air inlet is within 4 ft. (1.2 m) of inside corner.
D. Do not locate terminal above a public walkway.
E. Minimum 12 in. (305 m) below roof overhang. Close proximity to overhang and/or a deep overhang requires vent terminal to protrude farther from wall.
F. Minimum 4 ft. (1.2 m) in USA or 6 ft. (1.8 m) in Canada from any electric meter, gas meter, regulator, or relief equipment. Never terminate above or below any of these within 4 ft. (1.2 m) horizontally.
G. Vent and air terminals minimum 12 in. (305 mm) above grade or normal snow line, if applicable.
5. Do not locate vent terminal under decks or similar structures.
6. Avoid locating combustion air terminal in an area with or likely to have contaminants. See Table 5-2.
NOTICE: Minimize lengths of piping outside building to reduce risk of condensate freezing in vent pipe causing boiler shutdown.
Prepare Wall Penetrations
1. Use base plate (if applicable) to determine air and vent pipe hole centerline locations.
2. Cut hole for air pipe as close as desired to pipe outside diameter.
3. Cut hole for vent pipe at least 1 in. (25 mm) larger than pipe outside diameter following required clearance per Figure 5-1.
4. Ensure vent wall penetration and methods of securing and sealing around terminal allow for thermal expansion.

24

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
8 Sidewall Direct Venting (continued)

Figure 8-1: Vent Terminal Clearances (Air Terminal not Shown for Clarity)

110332-05 – 8/23

25

PHTM II
8 Sidewall Direct Venting (continued)
CPVC/PVC or Polypropylene Fittings Terminal
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.

! WARNING
Asphyxiation Hazard. All propylene vent systems rely on gaskets for sealing. Ensure gaskets are installed in each female end of vent pipe or fitting. Failure to make proper joint connections could cause products of combustion and/or carbon monoxide to enter building, resulting in severe personal injury, death or substantial property damage.

1. Vent terminates outside building in elbow, coupling, or end pipe pointing outward away from wall and air terminal. Air terminates outside building in downward-facing elbow. Air terminal may be to left or right of vent terminal. See Figures 8-2 and 8-4.
2. Screens on vent and air intake terminals are generally recommended. Use 1/2 in. (12 mm) mesh stainless steel for CPVC/PVC or listed screens for polypropylene.
3. Vent terminal minimum 12 in. (305 mm) above air terminal.
4. Required CPVC/PVC vent pipe and fittings listed in Table 7-11. Polypropylene listed in Tables 7-16 and 7-17.

To boiler vent connection
To boiler air connection

12″ (305mm) Min. 7′ (2.1m) Max.

Installation, Operating & Service Instructions

Table 8-3: Polypropylene Sidewall Terminal Fittings

DuraVent PolyPro

Centrotherm InnoFlue

Selkirk PolyFlue

UV resistant single wall pipe + two 2PPSE90BC elbows + 2PPS-BG screen

UV stabilized end pipe + two ISELL0287UV elbows + IASPP02 screen

UV resistant pipe + two 2PF90UV elbows + 2PF-HVST screen

Note: 2 in. (60 mm) components shown. Replace “2” with “3” for 3 in. (80 mm) component part numbers.

From boiler vent connection
To boiler air connection

PVC coupling or polypropylene end pipe

12″ (305mm) Min.

7′ (2.1m) Max.

12″ (305mm) Min.

Grade or Snow line

Figure 8-4: Alternate Fittings Terminal

5. Assembly

A. Use appropriately sized wall thimble or a sheet metal plate on building exterior to maintain proper clearance and provide weather tight seal.

B. If venting with polypropylene:

i. Use UV resistant or UV stabilized components for all exterior pipe and fittings.

ii. Remove gasket from terminal fitting to install screen.

6. Brace exterior vertical runs of piping as required.

7. Seal exterior openings thoroughly with exterior

caulk.

From boiler vent connection

To boiler air connection

Elbow

Screen

12″ (305mm) Min.
Grade or snow line
Figure 8-2: Fittings Terminal 26

Elbow
Screen Wall Thimble
Figure 8-5: CPVC/PVC Fittings Terminal Assembly 110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
8 Sidewall Direct Venting (continued)

From boiler vent connection
To boiler air connection

Wall Thimble

DuraVent & Selkirk: Remove gasket to install screen
Elbow

1. Low profile terminals listed in Table 8-7 may be used to terminate air and vent outside building per Figure 8-8. Both air and vent pipes must attach to terminal kit.
2. Required vent pipe and fittings listed in Table 7-11.

Table 8-7: CPVC/PVC Low Profile Terminal Kits

Length

Ipex

Diversitech

2 in. (60 mm)

397984

HVENT-2

3 in. (80 mm)

397985

HVENT-3

Elbow

Joint Connector

Screen

Figure 8-6: Polypropylene Fittings Terminal Assembly
CPVC/PVC Low Profile Terminal
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.

3. Follow terminal manufacturer’s instructions for assembly.
NOTICE: Ensure outer terminal orientation per Figure 8-8.
! WARNING
Asphyxiation Hazard. Ensure outer terminal cover is installed before operating boiler. Operation without outer cover installed could cause product damage or improper operation resulting in severe personal injury, death or substantial property damage.

Possible Orientations

From boiler vent connection
To boiler air connection

12″ (305mm) Min.

Grade or Snow line

Figure 8-8: Low Profile Terminal

110332-05 – 8/23

27

PHTM II Installation, Operating & Service Instructions
8 Sidewall Direct Venting (continued)

CPVC/PVC Concentric Terminal
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
1. Concentric vent terminals listed in Table 8-9 may be used to terminate air and vent outside building per Figure 8-10. Both air and vent pipes must attach to terminal kit.
! WARNING
Asphyxiation Hazard. If vent system is too short to accommodate required 30 in. (760 mm) of CPVC pipe and CPVC elbow between boiler and PVC venting, use listed CPVC terminal kit. Failure to comply could result in severe personal injury, death or substantial property damage.

2. Required vent pipe and fittings listed in Table 7-11.
Table 8-9: CPVC/PVC Concentric Terminal Kits

Length

Ipex

Diversitech

2 in. (60 mm) PVC

397005

CVENT-2

2 in. (60 mm) CPVC 197040

N/A

3 in. (80 mm) PVC

397006

CVENT-3

3 in. (80 mm) CPVC 197009

N/A

Note: Additional Ipex concentric terminal kits with different lengths may also be used.
Elbow (field supplied)

Combustion air

Clamp or Strap (field supplied)

Outer Pipe

Inner Pipe

3. Follow terminal manufacturer’s instructions and Figure 8-11 for assembly.
4. If needed, terminal can be shortened. Follow terminal manufacturer’s instructions and Figure 8-12.
! WARNING
Asphyxiation Hazard.
Ensure rain cap is installed before operating boiler. Operation without rain cap installed could cause product damage or improper operation resulting in severe personal injury, death or substantial property damage.
If using stainless steel screw to attach rain cap, always drill clearance hole in rain cap and pilot hole in vent pipe appropriate for screw size to avoid cracking PVC components. Failure to comply may cause product damage or improper operation, resulting in severe personal injury, death, or substantial property damage.

From boiler To boiler vent connection air connection
IPEX or Diversitech Concentric Terminal

1″ (25mm) Min. 2″ (50mm) Max.

Grade/ Snow line

12″ (305mm) Min.

Figure 8-10: CPVC/PVC Concentric Terminal
Combustion air
Rain Cap

Vent

Vent

Wye Fitting

Sidewall

Location of optional screen 12″ (305mm) Min above grade/snow line
1″ (25mm) Min 2″ (50mm) Max

Figure 8-11: CPVC/PVC Concentric Terminal Installation

28

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
8 Sidewall Direct Venting (continued)

*Overall length of inner pipe to be ‘A’ longer than overall length of outer pipe.
Concentric Wye Fitting

Kit Size

*’A’

‘B’

‘C’

7-3/8″ (187mm) 1-3/4″ (44mm)

2″

3-1/2″ (89mm)

12-3/16″ (310mm) 3/4″ (19mm)

8-3/4″ (222mm) 2-1/4″ (57mm)

3″

4-1/2″ (114mm)

12-3/16″ (310mm) 1″ (25mm)

Manufacturer IPEX
DIVERSITECH IPEX
DIVERSITECH

12″ (305mm)
Min
‘C’

‘B’
To install stainless steel screw and nut locate drill location dimple on outside of rain cap and drill a 3/16″ (4.8mm) hole through cap and inner pipe wall ensuring path of hole is perpendicular to inner pipe. Do not overtighten screw.

*Inner Vent Pipe

Outer Air Intake Pipe

Rain Cap

Notes: 1. All cuts must be square and deburred. 2. Lengthening of terminal is not permitted.
Figure 8-12: CPVC/PVC Concentric Terminal Dimensions

Polypropylene Concentric Terminal
! WARNING
Asphyxiation Hazard. All polypropylene vent systems rely on gaskets for sealing. Ensure gaskets are installed in each female end of vent pipe or fitting. Failure to make proper joint connections could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
1. Concentric terminals listed in Table 8-13 may be used to terminate air and vent outside building per Figure 8-14. Both air and vent pipes must attach to terminal kit.
Table 8-13: Polypropylene Concentric Sidewall Terminal Components

2. Required vent pipe and fittings listed on Tables 7-16 and 7-17.
3. One polypropylene to PVC adapter required. Install at terminal air pipe connection if using PVC air pipe. Install at boiler air connection if using polypropylene air pipe.
4. Follow terminal manufacturer instructions for assembly.

From boiler vent connection
To boiler air connection

Polypropylene Concentric Sidewall Terminal (DuraVent shown)

Length
2 in. (60 mm)
3 in. (80 mm)

DuraVent PolyPro 2PPS-HKC
3PPS-HKC

Centrotherm InnoFlue
ICWT242 terminal + ICTCR24 two-pipe
adapter
ICWT352 terminal + ICCT3503 two-pipe
adapter

110332-05 – 8/23

Selkirk PolyFlue
2PF-HCT terminal + 2PF-CTA twopipe adapter
3PF-HCT terminal + 3PF-CTA twopipe adapter

12″ (305mm) Min.

Grade/ Snow line

Figure 8-14: Polypropylene Concentric Terminal 29

9 Vertical Direct Venting

PHTM II Installation, Operating & Service Instructions

Determine Terminal Location
! WARNING
Asphyxiation Hazard. Follow these instructions when determining vent terminal location. Failure to comply could result in severe personal injury, death or substantial property damage.
1. Do not exceed maximum equivalent vent and air pipe length in Table 7-7.
2. Vent must terminate at least 2 ft. (610 mm) above any part of the building within 10 ft. (3.1 m) horizontally.
3. Avoid locating combustion air terminal in an area with or likely to have contaminants. See Table 5-2.
NOTICE: Minimize lengths of piping outside building to reduce risk of condensate freezing in vent pipe causing boiler shutdown.
Prepare Roof Penetrations
1. Cut hole for air pipe as close as desired to pipe outside diameter.
2. Cut hole for vent pipe at least 1 in. (25 mm) larger than pipe outside diameter following required clearance per Figure 5-1.
3. Ensure vent roof penetration and methods of securing and sealing around terminal allows for thermal expansion.
4. Use roof flashing and storm collars to ensure a weather tight seal and prevent moisture from entering building.
5. Follow all local codes for isolation of vent pipe and fire stops when passing through floors, ceilings, and roofs.
CPVC/PVC or Polypropylene Fittings Terminal
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage..

! WARNING
Asphyxiation Hazard. All polypropylene vent systems rely on gaskets for sealing. Ensure gaskets are installed in each female end of vent pipe or fitting. Failure to make proper joint connections could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
1. Vent terminates outside building in coupling or end pipe pointing upward. Air terminates outside building in downward-facing elbow. Use two 90° elbows or 180° bend for air terminal. Air terminal may be to left, right, or below vent terminal as long as clearances in Figure 9-1 are maintained.
2. Screens on vent and air intake terminals are generally recommended. Use 1/2 in. (12 mm) mesh stainless steel for CPVC/PVC or listed screens for polypropylene.
3. Vent terminal minimum 12 in. (305 mm) above air terminal.
4. Required CPVC/PVC vent pipe and fittings listed in Table 7-11. Polypropylene listed in Tables 7-16 and 7-17.
5. Alternate terminal arrangement with vertical vent and sidewall air intake is permitted. See Figure 9-5.

24″ (610mm) Min.
10′ (3.1m) 0″
Min.

12″ (305mm) Min. 12″ (305mm) Min.

Roof or Snow line

From boiler vent connection

To boiler air connection

Figure 9-1: Fittings Terminal

30

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
9 Vertical Direct Venting (continued)

Table 9-2: Polypropylene Vertical Terminal Fittings

DuraVent PolyPro

Centrotherm InnoFlue

Selkirk PolyFlue

UV resistant single wall pipe + 2PPS-BG screen

UV stabilized UV resistant

end pipe +

pipe + 2PF-

IASPP02 screen HVST screen

Note: 2 in. (60 mm) components shown. Replace “2” with “3” for 3 in. (80 mm) part numbers.

Coupling Screen

Elbow

DuraVent & Selkirk: Remove gasket to install screen
Screen

Elbow

Joint Connector

Screen

Roof Flashing

Roof Flashing

From boiler vent connection

To boiler air connection

Figure 9-3: CPVC/PVC Fittings Terminal Assembly

6. Assembly
A. Use appropriately sized roof flashing to maintain proper clearance and provide weather-tight seal.
B. If venting with polypropylene
i. Use UV resistant or UV stabilized components for all exterior pipe and fittings.
ii. Remove gasket from terminal fitting to install screen.
7. Brace exterior vertical runs of piping as required.

From boiler vent connection

To boiler air connection

Figure 9-4: Polypropylene Fittings Terminal Assembly

10′ (3.1m) 24″ (610mm) Min

PVC Coupling or Polypropylene end pipe with screen

Fire Stop listed for use with vent system

Normal snow line on roof

Vent Pipe

Boiler

Air Intake Pipe

Elbow with screen
12″ (305mm) Min
Grade/Snow Line

110332-05 – 8/23

Figure 9-5: Alternate Vertical Vent/Sidewall Air Terminal
31

PHTM II
9 Vertical Direct Venting (continued)
CPVC/PVC Concentric Terminal
! WARNING
Asphyxiation Hazard. All CPVC/PVC vent joints must be glued. Failure to comply could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.
1. Concentric vent terminals listed in Table 8-9 may be used to terminate air and vent outside building per Figure 9-6. Both air and vent pipes must attach to terminal kit.
2. Required vent pipe and fittings listed in Table 7-11.
3. Follow terminal manufacturer’s instructions and Figure 9-7 for assembly.

Installation, Operating & Service Instructions
! WARNING
Asphyxiation Hazard. If using stainless steel screw to attach rain cap, always drill clearance hole in rain cap and pilot hole in vent pipe appropriate for screw size to avoid cracking PVC components. Failure to comply may cause product damage or improper operation, resulting in substantial property damage, or death.
Vent
Location of optional screen

Combustion air Roof Line

Rain Cap
Outer Pipe Inner Pipe Storm collar and Roof Flashing or equivalent (field supplied)

12″ (305mm) Min. (USA) 18″ (460mm) Min. (Canada) 24″ (610mm) Max.

Roof or snow line

From boiler vent connection

To boiler air connection

Figure 9-6: CPVC/PVC Concentric Terminal

4. If needed, terminal can be shortened. Follow terminal manufacturer’s instructions and Figure 8-12.

! WARNING
Asphyxiation Hazard. Ensure rain cap is installed before operating boiler. Operation without rain cap installed could cause product damage or improper operation, resulting in severe personal injury, death or substantial property damage.

Clamp or Strap (field supplied)
Wye Fitting

Elbow (field supplied)

Vent

Combustion air

Figure 9-7: CPVC/PVC Concentric Vertical Installation
! WARNING
Do not install U-bend or any other fittings on terminal rain cap. Failure to comply could cause product damage or improper operation, resulting in severe personal injury, death or substantial property damage.

Figure 9-8: Do Not Install U-bend or any other

Fittings on Terminal Rain Cap

32

110332-05 – 8/23

PHTM II
9 Vertical Direct Venting (continued)
Polypropylene Concentric Terminal
! WARNING
Asphyxiation Hazard. All polypropylene vent systems rely on gaskets for sealing. Ensure gaskets are installed in each female end of vent pipe or fitting. Failure to make proper joint connections could cause products of combustion and/or carbon monoxide to enter the building, resulting in severe personal injury, death or substantial property damage.

Installation, Operating & Service Instructions
Abandoned B-vent Chase
! WARNING
Asphyxiation Hazard. · Only abandoned (unused) B-vent may be used as a chase. Failure to comply may cause product damage or improper operation resulting in severe personal injury, death or substantial property damage. · Do not use flexible polypropylene outside of B-vent chimney. Failure to comply may cause product damage or improper operation resulting in severe personal injury, death or substantial property damage.

1. Concentric terminals listed in Table 9-9 may be used to terminate air and vent outside building per Figure 9-10. Both air and vent pipes must attach to terminal kit.
2. Required vent pipe and fittings listed in Tables 7-16 and 7-17.
3. One polypropylene to PVC adapter required. Install at terminal air pipe connection if using PVC air pipe. Install at boiler air connection if using polypropylene air pipe.
4. Follow terminal manufacturer instructions for assembly.

Table 9-9: Polypropylene Concentric Vertical

Terminal Components

Length

DuraVent PolyPro

Centrotherm InnoFlue

Selkirk PolyFlue

2 in. (60 mm)

2PPS-VKC (black) or 2PPS-VK-TCC (terracotta)

ICRT2439 terminal + ICTCR24 twopipe adapter

2PF-VCT terminal + 2PF-CTA twopipe adapter

3 in. (80 mm)

3PPS-VKC (black) or 3PPS-VK-TCC (terracotta)

ICRT3539 terminal + ICCT3503 twopipe adapter

3PF-VCT terminal + 3PF-CTA twopipe adapter

Polypropylene Concentric Vertical Terminal (DuraVent shown)

12″ (305mm) Min.

Roof or Snow line

From boiler vent connection

To boiler air connection

Figure 9-10: Polypropylene Concentric Terminal

110332-05 – 8/23

1. Abandoned B-vent may be used as an air chase with flexible polypropylene vent pipe only if all of the following conditions are met:
A. B-vent must be clean and in good condition.
B. B-vent inside diameter 6 in. (150 mm) or larger.
C. All B-vent joints and seams must be sealed with RTV silicone.
Use DuraVent or Centrotherm concentric terminal and flexible polypropylene listed in Table 9-11 to terminate air and vent outside building per Figure 9-12 and 9-13.
NOTICE: Selkirk components may only be used with a sidewall air termination.
2. If any of above conditions is not met, terminate air piping through sidewall using PVC or polypropylene fittings per Figure 9-14.
3. Required vent pipe and fittings listed in Tables 7-16 and 7-17.
4. Do not count concentric termination when calculating equivalent length.
5. Follow terminal manufacturer instructions for assembly.
6. Air connection for B-vent air chase:
A. Install tee same size as B-vent on base of B-vent with cap in side of tee. Connect PVC air pipe to side of tee using a PVC socket x male thread adapter. Cut clearance hole in cap, insert PVC adapter, and install electrical conduit locknut to secure. Seal all joints with RTV silicone.
B. DuraVent: Install PolyPro lower B-vent adapter in base of tee.
C. Centrotherm: Install cap in base of tee. Route smooth section of InnoFlue flex through cap in base of tee. Use wall plate and RTV silicone to seal this penetration.
33

PHTM II
9 Vertical Direct Venting (continued)

Table 9-11: Polypropylene B-vent Chase Components

DuraVent PolyPro
2PPS-VFTC flex termination cap + 2PPSBV* adapter + 2PPS-FLEX** flex length

Centrotherm InnoFlue

Selkirk PolyFlue

IFBK02** B-vent kit + IAWP02BP wall plate

2PF-10UV or 2PF-39UV rigid pipe + 2PFHVST screen + 2PF-FLEX flex length + 2PFBVSC storm collar

* Size of B-vent (in.), e.g. 2PPS-BV6 for 6 in. B-vent ** Length (25, 35, or 50 ft.) e.g. 2PPS-FLEX25 for 25
ft. length Note: 2 in. (60 mm) components shown. Replace “2” with “3” for 3 in. (80 mm) part numbers.

Installation, Operating & Service Instructions

10′ (3.1m)

Centrotherm Innoflue IFBK02 or IFBK03 B-Vent Kit

24″ (610mm) Min 12″ (305mm) Min

B-Vent Flashing
Normal snow line on roof

PPs Flex
Fire Stop listed for use with B-Vent

B-Vent

Centrotherm Innoflue Vent Pipe

B-Vent tee with cap and PVC thread adapter (See Text)

Base PVC Air Intake Pipe

IACGE02 or IACGE03 Gasket in B-Vent Cap
Support Bracket

Boiler

10′ (3.1m)

24″ (610mm)
Min

12″ (305mm)
Min

PPs Flex
Fire Stop listed for use with B-Vent

Duravent Polypro Vent Pipe

Duravent Polypro 2PPS-VFTC or 3PPS-VFTC Vertical Flex Termination Cap
B-Vent Flashing Normal snow line on roof
B-Vent
B-Vent tee with cap and PVC thread adapter (See Text)
Flex Male Adapter

Air Intake Pipe

Boiler

Notes: 1. All B-Vent joints must be sealed with RTV. 2. Seal the Flex Male Adapter to the inside of the lower B-Vent Adapter with RTV. 3. Seal the Air Intake Pipe to the B-Vent Cap with RTV.

Figure 9-12: DuraVent Polypropylene B-vent Air Chase System

Figure 9-13: Centrotherm Polypropylene B-vent Air Chase System

10′ (3.1m)
24″ (610mm) Min 12″ (305mm) Min
PPs Flex Fire Stop listed for
use with B-Vent

Duravent Polypro 2PPS-VFTC or 3PPS-VFTC Vertical Flex Termination Cap
B-Vent Flashing Normal snow line on roof
B-Vent

Duravent Polypro Vent Pipe

Air Intake Pipe

Note: Duravent Polypro Flex components shown.
Outside Wall
Elbow with Screen
12″ (305mm) Min

Boiler

Grade/Snow Line

Figure 9-14: Polypropylene B-vent Chase with Sidewall Air Terminal

34

110332-05 – 8/23

PHTM II
9 Vertical Direct Venting (continued)
Abandoned Chimney Chase
! WARNING
Asphyxiation Hazard. Only abandoned (unused) masonry chimney may be used as a chase. If chimney contains multiple flues, all flues must be abandoned. Failure to comply could cause product damage or improper operation resulting in severe personal injury, death or substantial property damage.

! WARNING
Asphyxiation Hazard. Do not use flexible polypropylene outside of masonry chimney. Failure to comply could cause product damage or improper operation resulting in severe personal injury, death or substantial property damage.

1. Abandoned chimney may be used as a chase with flexible polypropylene vent pipe only if all of the following conditions are met:
A. Chimney is structurally sound and in good condition.
B. No other appliances or fireplaces are vented into chimney or adjacent flues.
Use concentric terminal and flexible polypropylene listed in Table 9-15 to terminate vent outside building. Terminate air through sidewall using PVC or polypropylene fittings. See Figure 9-16.
2. Follow vent system manufacturer’s instructions for assembly.

Table 9-15: Polypropylene Masonry Chimney Chase

Components

DuraVent PolyPro

Centrotherm InnoFlue

Selkirk PolyFlue

2PPS-FKC chimney kit + 2PPS-FLEX*
flex length

IFCK02* chimney kit with flex length

2PF-FLEX-KIT chimney kit + 2PF-
FLEX length

* Length (25, 35, or 50 ft.), e.g. 2PPS-FLEX25 for 25 ft. length
Note: 2 in. (60 mm) components shown. Replace “2” with “3” for 3 in. (80 mm) part numbers.

Installation, Operating & Service Instructions
Vent
Note: Duravent Polypro Flex components shown.

Clean, tight unused chimney
Base support and elbow for PPs flex pipe
Exterior Wall Plate

PPs Flex

Duravent Polypro Vent Pipe Air Intake Pipe
Boiler

Outside Wall Elbow with screen 12″ (305mm) Min
Grade/Snow Line

Figure 9-16: Masonry Chimney Chase System
WITH CROWN

45° MAX

BOILER

CHIMNEY AND FOUNDATION ARE STRUCTURALLY SOUND

Figure 9-17: Masonry Chimney Chase Requirements

BOILER

110332-05 – 8/23

Figure 9-18: Masonry Chimney Chase and Any Adjacent Flues must be Abandoned 35

10 Heating System Piping

PHTM II Installation, Operating & Service Instructions

General System Piping Precautions
! WARNING
Asphyxiation Hazard.
· Failure to properly pipe boiler could cause improper operation and damage to boiler or building resulting in severe personal injury, death or substantial property damage.
· Protect gas ignition system components from water (dripping, spraying, rain, etc.) during boiler operation and service (circulator replacement, condensate trap cleaning, control replacement etc).
· Oxygen contamination of boiler water will cause corrosion of iron and steel boiler components and could lead to premature boiler failure. Warranty does not cover problems caused by oxygen contamination of boiler water or scale (lime) build-up caused by frequent addition of water.
· Maintain clearances to system piping per Figure 5-1.
! CAUTION
Toxic Material. The heat transfer medium must be water or other nontoxic fluid having a toxicity rating or Class of 1, as listed in Clinical Toxicology of Commercial Products, 5th edition.

B. Pipe outlet of safety relief valve to location where water or steam will not create a hazard or cause property damage if valve opens. (The end of discharge pipe must terminate in unthreaded pipe.)
C. If safety relief valve discharge is not piped to drain, it must terminate within 6 in. (150 mm) of floor.
D. Do not route discharge piping through an area that is prone to freezing temperature.
E. Termination of safety relief valve must be in an area where it is not likely to become plugged by debris.
F. If replaced, replacement must have a setting less than or equal to maximum allowable working pressure (MAWP) shown on ASME data plate located on left side of heat exchanger (50 psig [345 kPa]).
! WARNING
Burn Hazard. Safety relief valve discharge piping must be piped near floor to eliminate potential of severe burns. Do not pipe in any shut-off valves between: 1. Safety relief valve and boiler. 2. Safety relief valve and discharge. Union may be installed in safety relief valve piping.

Standard Piping Components
1. Safety relief valve (required).
A. Shipped loose in parts carton (30 psig [207 kPa]).

2. Pump (required) Boiler loop pump is supplied with this boiler and sized for near boiler piping equivalent length of 50 ft. See Table 10-1 for flow range through boiler. At least one additional pump is required on system side.

36

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
10 Heating System Piping (continued)

Table 10-1: Head Loss at Selected Flow Rates

Boiler Supply Boiler Return

Boiler Model Connection Connection

inch, FPT

inch, FPT

T = 35°F

Minimum Required
Flow (GPM)

Boiler Head Loss, (ft.)

PHTM2080HB

1

1

4.3

7.2

PHTM2120H PHTM2120HB

1

1

6.4

11.2

PHTM2150H

1

PHTM2180H

1

1

8.1

8.2

1

9.7

11.6

T = 30°F

Minimum Required
Flow (GPM)

Boiler Head Loss, (ft.)

5.0

9.5

T = 25°F

Minimum Required Flow (GPM)

Boiler Head Loss, (ft.)

6.0

13.1

T = 20°F

Minimum Required
Flow (GPM)

Boiler Head Loss, (ft.)

7.5

19.8

7.5

14.6

9.0

20.0

11.2

29.7

9.4

10.9

11.3

15.3

14.1

23.4

11.3

15.5

13.5

21.8

16.9

33.5

Notes: 1. Required Flow (GPM) = **Output (MBH) x 1,000/(500 x T) **Output (MBH) – select value for specific boiler model from Table 3-1. Using boiler antifreeze will result in higher pressure drop and may require larger circulators. 2. Boiler head loss includes 50 eq. ft. near boiler piping. [Approximately 20 ft. straight pipe, (4) 90° elbows and (2) full port ball valves]

Figure 10-2: System Curve w/ 50 Equivalent ft. of Piping

110332-05 – 8/23

37

PHTM II Installation, Operating & Service Instructions
10 Heating System Piping (continued)

3. Fill valve (required)
A. Either a manual or automatic fill valve may be used, but a manual valve is preferred because it eliminates unmonitored additions of make-up water to the system.
B. Ideal location for fill valve is at expansion tank.
C. If using antifreeze with automatic fill valve, it is recommended to install a water meter to monitor make-up water. Antifreeze concentration will decrease as make-up water is added. If using antifreeze, local codes often require a backflow preventer or disconnect from city water.
4. Expansion tank (required)
A. If this boiler is replacing an existing boiler with no other changes in system, old expansion tank can generally be reused.
B. If expansion tank must be replaced, consult expansion tank manufacturer’s literature for proper sizing.
C. If using antifreeze, account for additional expansion of glycol solution when sizing an expansion tank. In a typical residential heating system, a glycol mixture has an expansion rate of 1.2 times that of water alone, therefore a tank for an anti-freeze system should be at least 1.2 times greater in size. Antifreeze should be stainless steel compatible.
5. Automatic air vent (required)
Manual air vents are required to remove air during initial fill.
6. Manual reset high limit (required by some codes i.e. ASME CSD-1)
A. Install high limit in boiler supply piping just above boiler with no intervening valves.
B. Set manual reset high limit to 200°F. Wire limit to “external limit” terminal on low voltage connection board per Section 12 Field Wiring.
7. Isolation valves are useful when boiler must be drained, as they will eliminate having to drain and refill entire system.
8. Dirt and magnetic filter (strongly recommended)
A. Install a dirt/magnetic filter to prevent any system debris from entering boiler and fouling of water passages.

B. Note that some filters have a significant pressure drop, which may impact ability of system pump to obtain required flow.
9. Drain valve (required)
Install drain valve as shown in Figures 10-3 and 10-4.
10. Low water cut-off (LWCO) (may be required by local jurisdiction)
A. Protection of this boiler against low water and/ or inadequate flow is provided by UL353 listed flow switch built into boiler.
B. This is a water tube boiler and this flow switch is therefore only effective way to provide such protection.
C. Section HG614(c) of ASME Boiler and Pressure Vessel Code recognizes use of a listed flow switch in lieu of LWCO on water tube boilers.
D. In event a local jurisdiction insists upon installation of LWCO with this boiler, refer to Section 12 Field Wiring and LWCO manufacturer’s instructions for proper wiring.
· Auto reset LWCO: 105591-01
· Manual reset LWCO: 108182-01
E. Install LWCO in supply piping at point prescribed by the local jurisdiction (generally at a point above boiler, in common header piping).
F. If probe type LWCO is used, be certain that it is located at a point in piping from which air can escape to an automatic air vent.
G. Generally, this means there should be no down-turns in piping between LWCO and point where automatic air vent is installed.
H. Failure to do this may result in nuisance boiler shut-downs due to small amounts of air trapped around probe.
11. Primary-secondary piping is required for this boiler.
12. Near boiler piping supplied with boiler. See Figure 10-5 for more details.

38

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
10 Heating System Piping (continued)

110332-05 – 8/23

A. At least eight pipe diameters upstream of first tee. B. No further apart than 12″ (305mm) (or four pipe diameters), whichever is smaller.

Flow Check Valves
Optional Full Port Isolation Valves
Heating Circulators

To System

Hydraulic Separator may be substituted for tees

Close Nipple

(locate Header Sensor

as close as possible

B

to downstream tee)

Air Separator Expansion Tank

From System
A

Header Temperature Sensor (when used)

Safety Relief Valve

Dirt & Magnetic Filter (highly recommended)

Optional Full Port Isolation Valves
To System

Fill Valve Backflow Preventer
System Zone Valves Heating System Circulator

Cold Water Line

Drain Valve Circulator

Tee & Plug (Recommended for future Heat Exchanger service)
Unions
Full Port Isolation Valves

Optional Zone Valve Controlled System

NOTICE: Installer is responsible for piping configurations to provide proper flow rates and meet local codes.
NOTICE: Primary-secondary piping is required.
! CAUTION
Burn Hazard. Property Damage. Under some conditions this boiler can deliver water to heating system that is significantly higher than boiler setpoint. Where such overheat could cause personal injury or property damage (e.g. low temperature radiant floor zones), protect system from excessive temperatures using tempering valves or other means.
Figure 10-3: Heating System Piping

39

PHTM II Installation, Operating & Service Instructions
10 Heating System Piping (continued)

40

A. At least eight pipe diameters upstream of first tee. B. No further apart than 12″ (305mm) (or four pipe diameters), whichever is smaller.

Dirt & Magnetic Filter (highly recommended)

From System

Flow Check Valves
Optional Full Port Isolation Valves
Heating Circulators
Optional Full Port Isolation Valves

To System

Hydraulic Separator

may be substituted

for tees

Close Nipple

(locate Header Sensor

as close as possible

B

to downstream tee)

Air Separator Expansion Tank

Full Port Isolation
Valve

Indirect Circulator

Flow Check Valve

Fill Valve

Cold Water Line

A
Safety Relief Valve
Header Temperature Sensor (when used)
Backflow Preventer
Drain Valve

Circulator
Tee & Plug (Recommended for future Heat Exchanger service) Unions Full Port Isolation Valves

To System

System Zone Valves
Heating System Circulator

Indiect Domestic Water Heater (IWH)

Optional Zone Valve Controlled System

Indirect Supply

Indirect Return

NOTICE: Installer is responsible for piping configurations to provide proper flow rates and meet local codes. NOTICE: Primary-secondary piping is required.
! CAUTION
Burn Hazard. Property Damage. Under some conditions this boiler can deliver water to heating system that is significantly higher than boiler setpoint. Where such overheat could cause personal injury or property damage (e.g. low temperature radiant floor zones), protect system from excessive temperatures using tempering valves or other means.

110332-05 – 8/23

Figure 10-4: Heating System Piping with Indirect Water Heater

PHTM II Installation, Operating & Service Instructions
10 Heating System Piping (continued)

Figure 10-5: Near Boiler Piping Supplied with Boiler

110332-05 – 8/23

41

11 Gas Piping

PHTM II Installation, Operating & Service Instructions

! WARNING
Explosion Hazard. · Failure to properly pipe gas supply to boiler could cause improper operation or leaks of flammable gas resulting in severe personal injury, death or substantial property damage.
· Gas supply to boiler and system must be shut off prior to installing or servicing boiler gas piping.
1. Gas piping must be sized to deliver adequate gas for boiler operation. Consider the following:
A. If gas pressure in building is above 1/2 psig (3.4 kPa), an additional gas pressure regulator is required. If additional regulator is used to reduce boiler inlet pressure, it must be at least 6 to 10 ft. (1.8 to 3.0 m) upstream of boiler.
B. Pressure drop from point of delivery to boiler. See Table 3-5 for inlet gas pressure requirements.
C. Existing and expected future gas using equipment (i.e. water heater, cooking equipment, etc.).
2. Use methods and materials in accordance with local plumbing codes. In absence of such requirements, follow NFPA 54/ANSI Z223.1 National Fuel Gas Code and/or CAN/CSA B149.1 Natural Gas and Propane Installation code. Figure 11-1 shows typical gas piping and connection to boiler.
A. Use thread compound compatible with liquefied petroleum gas.
B. A sediment trap must be installed upstream of gas controls.
C. A manual shut-off valve (provided in parts carton) must be installed within 6 ft. (1.8 m) of boiler.
D. Support weight of gas piping independently from boiler gas connection.
3. Boiler and its gas connection must be leak tested before placing boiler in operation.
A. For pressure testing at equal to or less than 1/2 psig (3.4 kPa) close manual shut-off valve.
B. For pressure testing above 1/2 psig (3.4 kPa) disconnect boiler and manual shut-off valve.

! DANGER
Explosion Hazard. Do not use matches, candles, open flames or other ignition sources to check for leaks. Failure to comply could result in severe personal injury, death or substantial property damage. C. Locate leaks using listed combustible gas
detector, a non-corrosive leak detection fluid or other listed leak detection method. Repair any leaks found immediately.
Gasket Gas Valve Adapter (1/2″ NPT) Ground Joint Union
Direction of Gas flow Manual Shutoff Valve
3″ Min. Drip Leg
Cap
Figure 11-1: Gas Piping

42

110332-05 – 8/23

12 Field Wiring

PHTM II Installation, Operating & Service Instructions

! DANGER
Electrical Shock Hazard. · Disconnect electrical supply before installing or performing maintenance. · Electrical power may be supplied from more than one circuit. ·Lock out all electrical boxes with padlock once power is turned off.
! WARNING
Electrical Shock Hazard. All wiring and grounding must conform to requirements of authority having jurisdiction or, in absence of such requirements, to National Electrical Code/NFPA 70 or Canadian Electrical Code, Part 1 (CSA C22.1 – latest edition). · Make electrical connections according to boiler’s wiring diagram and instructions. Failure to properly wire electrical connections to the boiler may result in severe personal injury, death or substantial property damage. · Protect each boiler circuit with a properly sized over-current device. · Never jump out or bypass any safety or operating control or component of this boiler.

Locating Field Connection Terminal Strips
Field connection terminal strip locations are shown in Figure 12-1. To access terminal strips:
1. Remove front door. Front door is removed by first loosening two thumb screws located under front of door.
2. Disconnect igniter wire at burner door.
3. Pull control enclosure forward, then to the left and allow it to swing down into the service position.

NOTICE: Internal wiring diagrams contained in this manual are for reference only. Each boiler is shipped with a wiring diagram sheet within boiler literature packet. Read, understand and follow this wiring diagram and wiring diagrams of any field supplied controls.
NOTICE: Boiler is equipped with a UL 353 listed high water temperature limit. This limit provides boiler shutdown in event boiler water temperature exceeds setpoint of control. Certain local codes require an additional water temperature limit. If necessary, install an additional water temperature limit (Honeywell L4006 Aquastat). Wire as indicated in Figure 12-3.

Figure 12-1: Location 120 VAC and Low Voltage Connection Boards
Field 120 VAC Connections
1. Provide a dedicated circuit for boiler of 15A or greater. A service switch is recommended and is required by many local codes. Locate this switch in accordance with local codes or, in absence of such requirements, in a location where it can be safely accessed in an emergency.
2. All 120 VAC connections to boiler are made on 120 VAC Connections terminal strip (see Figure 12-2) located on right side of bottom panel. Route all 120 VAC wiring through conduit knock out holes located on right side in front of terminal strip.

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43

12 Field Wiring (continued)

PHTM II

Installation, Operating & Service Instructions
D. Maximum combined current draw for all circulators is 5A.
Low Voltage Connections
1. All low voltage field connections to boiler are made on Low Voltage Connections terminal strip (see Figure 12-3) located on left side of bottom panel. Route all low voltage wiring through conduit knock out holes located on left side in front of terminal strip.

Figure 12-2: 120 VAC Connections

From left to right, connections on terminal strip are:

Terminal

Description

120 VAC L

Hot

120 VAC N

Neutral

Boiler Pump L

Hot

Boiler Pump N

Neutral

System Pump L

Hot

System Pump N Auxiliary Pump L

Neutral Hot

Auxiliary Pump N

Neutral

3. Pump outputs

A. Boiler Pump (supplied with boiler). Circulates water through boiler. Boiler pump is always on when boiler is responding to heating demand. See Table 15-15 for alternate boiler pump output functions. Maximum recommended current draw for boiler pump is 2.0A.
B. System Pump: (field supplied) Circulates water through radiation. System pump is always on when boiler is responding to heating demand. Refer to Table 15-15 for alternate system pump output functions. Maximum recommended current draw for system pump is 1.5A.
C. Auxiliary Pump: (field supplied) Auxiliary pump output can be used for 2nd zone or indirect pump. Refer to Table 15-15 for more information and alternate auxiliary pump output functions. Maximum recommended current draw for auxiliary pump is 1.5A.

44

Figure 12-3: Low Voltage Connections From left to right, connections on terminal strip are:

Terminal

Description

Heat T’Stat 24 VAC thermostat (R – 24V “Hot”)

Heat T’Stat

24 VAC thermostat (W – Energized on Call for Heat)

Heat T’Stat 24 VAC thermostat (C – 24V Common)

Aux T’Stat 24 VAC thermostat (R – 24V “Hot”)

Aux T’Stat

24 VAC thermostat (W – Energized on Call for Heat)

External Limit

Field supplied safety limit contacts (1)

External Limit
0-10 V 4-20mA
0-10 V 4-20mA

Field supplied safety limit contacts (2) Optional remote modulation control* (+) Optional remote modulation control* (-)

Header Sensor

Optional Header* Temperature Sensor (1)

Header Sensor

Optional Header* Temperature Sensor (2)

Outdoor Sensor

Optional Outdoor Temperature Sensor (1)

Outdoor Sensor

Optional Outdoor Temperature Sensor (2)

*Feature available with PAT-Connect Bluetooth

Adaptor and App.

110332-05 – 8/23

12 Field Wiring (continued)

PHTM II Installation, Operating & Service Instructions

2. External power must not be applied to any low voltage terminals – doing so may damage boiler control. Note following:
A. Heat T’Stat (field supplied) – Connect room thermostat or zone panel end switch (isolated contact only) to “Heat T’stat” terminals.
B. Aux T’Stat – Auxiliary T’Stat can be used for 2nd zone or indirect demand. Refer to Table 15-13 for explanation.
C. External Limit: External limit terminals are intended for use with field supplied safety device, such as a manual reset high limit or LWCO. When an external limit is used, jumper between these two terminals must be removed.
D. Outdoor Sensor – Use only Tasseron TSA00AA (P/N 108681-01) 10k outdoor sensor. When optional sensor is connected, boiler control will provide outdoor air sensor based freeze protection interlocks. When placing sensor, consider following:
i. Locate sensor on outside of building.
ii. Avoid placing sensor in areas where it may be covered with ice or snow.
iii. Avoid direct radiation from sun.
iv. Avoid placing sensor near potential sources of electrical noise such as transformers, power lines, and fluorescent lighting.
v. Wire sensor to boiler using minimum 22 AWG wire.
vi. Where electrical noise sources cannot be avoided, wire sensor using 2 conductor, UL Type CM, AWM Style 2092 shielded cable. Connect one end of shielding on this cable to ground.
E. Header Temperature Sensor – Use only Honeywell 32003971-003 (P/N 108703-01) sensor. Optional header sensor is required to enable Lead/Lag sequencer. Locate sensor as shown in Figures 10-3 and 10-4. Wire sensor using a 2 conductor, UL Type CM, AWM Style 2092, 300 Volt 60°C shielded cable. Connect one end of shielding on this cable to ground.
F. LWCO wiring – Although not necessary to protect this boiler, some jurisdictions may require installation of LWCO with this boiler.

i. Refer to Section 10 Heating System Piping for LWCO kits available from manufacturer.
ii. LWCO from these kits is installed to 4 pin connector on Low Voltage Connections terminal strip.
G. RJ45 Connections – Boiler-to-Boiler communication network is used for multiple boiler (“Lead-Lag”) installations. Note: Combi boilers may only be used as slaves in such a system. Refer to Table 15-16 for information on enabling this feature. Boiler lead/lag sequencer connection is made directly to control. Refer to Figure 12-4.
RJ45 Connections (2)

X6

BCC

X1

XB-2 XB-1

X5

Fuses X4
X2
X3

Figure 12-4: Boiler-to-Boiler Connections

110332-05 – 8/23

45

12 Field Wiring (continued)

PHTM II Installation, Operating & Service Instructions

Figure 12-5: TACO SR504 or Equivalent Zone Panel Wiring Connection Diagrams

46

110332-05 – 8/23

13 Condensate Disposal

PHTM II Installation, Operating & Service Instructions

! WARNING
Asphyxiation Hazard. Failure to install condensate drain in accordance with instructions outlined below could cause products of combustion and/or carbon monoxide to enter building, resulting in severe personal injury, death or substantial property damage.
1. This high efficiency boiler produces condensate.
NOTICE: Condensate is corrosive. Use only materials listed by authority having jurisdiction. In absence of such requirements, PVC and CPVC pipe may be used.
2. 3/4 in. PVC condensate drain connection can be solvent welded.
3. Condensate disposal considerations:
A. If required by local codes, install neutralizing filter. Neutralizing kit P/N 101897-01 is available from manufacturer.

B. Do not route or terminate condensate drain line piping through an area that is prone to freezing temperatures or that could be damaged by leaking condensate.
C. If point of condensate disposal is above trap, it will be necessary to use a condensate pump to move condensate from boiler to drain.
In such cases, select a condensate pump that is listed for use with condensing boilers.
Select a pump with an overflow switch to prevent property damage from condensate.
D. Barbed fitting on bottom panel is connected to trap vent and must be unobstructed for trap to work properly.
NOTICE: If condensate drain line becomes obstructed, boiler may leak from condensate trap vent. Consider installing drain pan directly below boiler if such a leak could cause property damage. Pipe drain pan drain to suitable location.

Condensate Trap Vent 3/4″ PVC Connection Condensate Trap Cleanout
Figure 13-1: Condensate Trap

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47

14 Start-Up and Checkout

PHTM II Installation, Operating & Service Instructions

Heating System Cleaning and Treatment
! CAUTION
Component Damage. Proper flushing, cleaning, and water side maintenance is highly recommended to protect boiler heat exchanger. Scaling and sediment build up may not be covered under warranty.
1. Prior to fill, flush entire heating system to remove sediment, flux, and traces of boiler additives.
2. Clean with approved cleaners such as the following or its equivalent: · Fernox Cleaner F3 (for new heating systems) · Sentinel x300 System cleaner (for new heating systems) · Sentinel X400 System Restorer (for old closed loop hydronic systems) Refer to instructions supplied with cleaner for proper dosage and use.
NOTICE: Cleaning system prior to removing old boiler or by isolating new boiler from system while cleaning will yield best results.
3. After system has been cleaned, recommend using approved inhibitors such as the following or its equivalent:
· Fernox F1 Protector
· Sentinel X100 Inhibitor
Refer to instruction supplied with inhibitor for proper dosage and use.
! CAUTION
Component Damage. Avoid use of petroleum based boiler additives and ester-based oils/lubricants. These could attack seals in both boiler and system which could result in property damage.

Fill Water Quality
NOTICE: Make sure system is filled with water meeting the following criteria:
· Hardness less than 7 grains/gallon. · pH between 6.5 and 9.5 (for systems containing
aluminum components, between 6.5 and 8.5) · Chlorides less than 200 PPM. If fill water is
drawn from a system containing a water softener, test a sample of the water to confirm that this criteria is met. Following appropriate water chemistry guidelines will help extend the life of appliance by reducing effects of lime scale buildup and corrosion, which are not covered by warranty.
NOTICE: Minimize introduction of make-up water, dissolved oxygen, and contaminants into boiler by following installation guidelines outlined in Appendix B: Water Quality and Boiler Additives.
Freeze Protection
If freeze protection is required see Appendix B for additional information.
Fill Water System
! WARNING
Burn Hazard. Never exceed maximum allowable working pressure on heat exchanger ASME plate (50 psig [345 kPa]). A 30 psig (207 kPa) safety relief valve is included with this boiler.
1. Fill system ensuring water quality meets requirements of this manual.
2. Pressurize system to at least 12 psig (83 kPa) at boiler. Pressure will vary with each application.
3. Verify air pressure in expansion tank is equal to system pressure.
4. Eliminate air in boiler by bleeding from heat exchanger manual air vent on top left side of heat exchanger (Figure 14-1).

48

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

A. Use 1/4 in. (6 mm) ID tubing connected to hose barb and route tubing to a safe draining location.
B. Turn vent counter clockwise and allow heat exchanger to vent until a steady stream of water is observed.
C. Close vent and remove hose.
5. Isolate each zone to purge air confirming that heating system and boiler are completely filled.

Confirm 1/4″ ID tubing is connected to hose barb. Route tubing to a safe place away from controls before opening vent.

Manual Air Vent

Final Check Before Starting Boiler
! WARNING
Asphyxiation Hazard. Burn Hazard. Completely read, understand and follow all instructions in this manual before attempting start-up.
1. Verify that venting, water piping, gas piping and electrical system are installed properly.
2. Confirm vent system is complete and free of obstructions before attempting to fire boiler.
3. Inspect all wiring for loose, uninsulated or miswired connections.
4. Verify boiler and system are full of water and pressurized.

Detail A (Scale 2:1)
A
Flame Rod
Figure 14-1: Manual Air Vent Location

NOTICE: When boiler is first powered, control will automatically run a pump purge sequence (status 10) for 2 minutes.
5. Check all gas piping before boiler manual shut-off valve for leaks and purge sections that are filled with air. Refer to NFPA 54/ANSI Z223.1 National Fuel Gas Code and/or CAN/CSA B149.1 Natural Gas and Propane Installation Code for additional information on testing and purging gas lines.
! DANGER
Explosion Hazard. Do not use matches, candles, open flames or other ignition source to check for leaks. Failure to comply could result in severe personal injury, death or substantial property damage.

NOTICE: Boiler is shipped from factory configured for Natural Gas (NG) 0-2,000 ft. (0-610 m).

6. If required, please proceed with fuel conversion and altitude conversion. Otherwise, skip to final check continued.

110332-05 – 8/23

49

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

LP Conversion
! WARNING
Asphyxiation Hazard. · Do not attempt to operate this boiler on LP gas without making proper adjustments to gas valve and control. Do not convert this boiler to LP gas without using a combustion analyzer to verify CO does not exceed 200 ppm air free for altitudes 0 to 2,000 ft. (0 to 610 m) and 300 ppm air free for altitudes above 2,000 ft. (610 m). (In event of high CO, consult section 18 Troubleshooting). · Failure to properly convert this boiler for use on LP gas could cause unreliable operation at elevated carbon monoxide (CO) levels, resulting in severe personal injury, death or substantial property damage. · Do not attempt to operate 150/180 above 2,000 ft. (610 m) on LP without proper conversion kit.
LP conversion requires (2) steps: gas valve setting adjustment and control parameter change.
1. Use 2.5 mm hex wrench to adjust gas valve setting from “1” to “2” (Figure 14-2).

3. Use keypad to enter adjust mode and change parameter A06 from “0” to “1”.
· Press and hold “menu” for 3 seconds. · Press “” or “” buttons until PAS is visible
and press “enter”.
· Press “enter” button while PA1 is visible.
· Press “+” or “-” buttons until password “86” is reached and press “enter”. Press and hold for five seconds to adjust by increments of 10.
· Press “menu” button until PAS is visible. · Press “” button until A is visible and press
“enter”. · Press “” or “” buttons until A06 is visible
and press “enter”.
· Press “+” or “-” buttons to change “0” to “1”.
· Press “menu” 3 times to return to display mode.
4. Apply yellow LP gas conversion label, supplied with boiler literature packet, to jacket beside rating label.
High Altitude Conversion
! WARNING
Asphyxiation Hazard. Do not attempt to operate boiler at altitude without making proper adjustments to control.

Figure 14-2: Gas Valve Fuel Setting
2. For 150 and 180 boiler installations with LP above 2,000 ft. (610 m), replace electrode shipped with boiler with electrode from conversion kit 11174501.

1. Change parameter A07 (altitude selection) according to the following table. Control is shipped from factory with A07 default value of 0.
Table 14-3: A07 Value

Altitude Selection A07

0

0-2,000 ft. (0 to 610 m)

1

2,001-6,000 ft. (611 m to 1,828 m)

2

6,001-8,000 ft. (1,829 to 2,438 m)

3

8,001-10,100 ft. (2,439 m to 3,079 m)

NOTICE: See Table 3-4 for associated de-rate for altitude.

50

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

Final Check Before Starting Boiler (continued)
1. Start boiler using lighting instructions in Figure 14-9. With boiler powered up, and with no call for heat, display should look like Figure 14-4. Once a call for heat is present, it will look like Figure 14-5.

6. If there is a problem, display will show error code (Figure 14-6). Refer to label on access door and Section 18 Troubleshooting to diagnose error.

Figure 14-6: Home Screen with Error 7. If successful ignition, display will show flame icon
(Figure 14-7)

Figure 14-4: Home Screen at Power Up (no call for heat)

Figure 14-5: Home Screen with CH and DHW Demands
2. Boiler should attempt to fire several seconds after a call for heat appears. With front door removed, try for ignition will appear as an audible spark (lasting approximately 4 seconds).
3. Upon initial start-up, gas train will be filled with air. Even if gas line has been completely purged of air, it may take several tries for ignition before a flame is established.
4. If boiler does not light after 2 retries for ignition, it will enter a “soft lockout” and will wait for one hour before attempting another ignition sequence. This soft lockout can be reset by interrupting power to boiler.
5. Once a flame has been established for first time, subsequent calls for burner operation should result in a flame on first try.

Figure 14-7: Home Screen While Running 8. Boiler will automatically perform a calibration to
properly set its air-fuel ratio (i.e. O2 or CO2 and CO levels).
9. Check inlet gas pressure (Figure 14-8). Verify inlet gas pressure is between upper and lower limits shown on rating label with all gas appliances on and off. Be sure to close this pressure tapping when gas pressure check is complete.
! WARNING
Explosion Hazard. Ensure inlet pressure tapping is fully closed after checking pressure. Failure to comply could result in severe personal injury, death, or substantial property damage.

110332-05 – 8/23

51

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

Inlet Pressure Tapping
Figure 14-8: Gas Valve Inlet Pressure Tap
10. Perform combustion test.
! WARNING
Asphyxiation Hazard. Use a combustion analyzer to verify proper operation by checking carbon monoxide (CO) levels. Failure to use a combustion analyzer could cause operation of boiler with elevated CO levels resulting in severe personal injury, death or substantial property damage.

A. Boiler is equipped with a screw cap in vent adapter. Be sure to replace this cap when combustion testing is complete.
B. Measure carbon monoxide (CO) level after 5 minutes of operation above 50% firing rate. Ensure door is sealed before taking combustion readings.
C. For altitudes 0 to 2,000 ft. (0 to 610 m) CO should not exceed 200 ppm air free. For altitudes above 2,000 ft. (610 m), CO should not exceed 300 ppm air free. (In event of high CO, see Section 18 Troubleshooting).
11. Perform a check of ignition safety shut-off device. With burner firing, carefully unplug black ignitor/ flame sensor wire at burner door using a pair of insulated pliers (Figure 14-1). Burner should shut off immediately.
12. Test any external limits or other controls in accordance with manufacturer’s instructions.
13. Refer to Section 15 Operation to set-up control for system in which boiler is installed. Some common set-up tasks include:
A. Setting CH temperature setpoints.
B. Defining boiler and system pump operation.
14. Review User’s Information Manual and system operation with homeowner.

52

110332-05 – 8/23

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

FOR YOUR SAFETY READ BEFORE OPERATING/POUR VOTRE SECU× RITE L× ISEZ× AVA×NT DE METTRE EN MARCHE
WARNING: If you do not follow these instructions exactly, a fire or explosion may result
causing property damage, personal injury or loss of life.
AVERTISSEMENT: Quiconque ne respecte pas à la lettre les instructions dans
la présente notice risque de déclencher un incendie ou une explosion entraînant des dommages, des blessures ou la mort.

A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

A. Cet appareil ne comporte pas de veilleuse. Il est muni d’un dispositif d’allumage qui allume automatiquement le brûleur. Ne tentez pas d’allumer le brûleur manuellement.
B. AVANT DE FAIRE FONCTIONNER, reniflez tout autour de l’appareil pour déceler une odeur de gaz. Reniflez près du plancher, car certains gaz sont plus lourds que l’air et peuvent s’accumuler au niveau du sol.

WHAT TO DO IF YOU SMELL GAS:

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

– Do not try to light any appliance. – Do not touch any electric switch; do not use any
phone in your building. – Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions. – If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to turn the gas control valve. Never use tools. If the valve will not turn by hand, don’t try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

– Ne pas tenter d’allumer d’appareil. – Ne touchez à aucun interrupteur ; ne pas vous servir des
téléphones se trouvant dans le bâtiment. – Appelez immédiatement votre fournisseur de gaz depuis un
voisin. Suivez les instructions du fournisseur. – Si vous ne pouvez rejoindre le fournisseur, appelez le service des
incendies.
C. Ne poussez ou tournez la manette d’admission du gaz qu’à la main ; ne jamais utiliser d’outil. Si la manette reste coincée, ne pas tenter de la réparer ; appelez un technicien qualifié. Le fait de forcer la manette ou de la réparer peut déclencher une explosion ou un incendie.
D. N’utilisez pas cet appareil s’il a été plongé dans l’eau, même partiellement. Faites inspecter l’appareil par un technicien qualifié et remplacez toute partie du système de contrôle et toute commande qui ont été plongés dans l’eau.

OPERATING INSTRUCTIONS/ INSTRUCTIONS DE FONCTIONNEMENT

1. STOP! Read safety information above on this label. 2. Set the thermostat to lowest setting. 3. Turn off all electric power to the appliance. 4. This appliance is equipped with an ignition device which
automatically lights the burner. Do not try to light the burner by hand. 5. Turn the external boiler manual gas valve
handle clockwise to close the gas supply (OFF Position). 6. Wait five (5) minutes to clear out any gas. Then smell for gas,
including near the floor. If you smell gas, STOP! Follow “B” in the safety information above on this label. If you don’t smell gas, go to the next step. 7. Turn the external boiler manual gas valve handle counterclockwise to open the gas supply (ON Position). 8. Turn on all electric power to the appliance. 9. Set the thermostat to the desired setting. 10. If the appliance will not operate, follow the instructions
“To Turn Off Gas To Appliance” and call your service technician or gas supplier.
OPEN/OUVERT CLOSED/FERME

1. ARRÊTEZ ! Lisez les instructions de sécurité sur la portion supérieure cette étiquette.
2. Réglez le thermostat à la température la plus basse. 3. Coupez l’alimentation électrique de l’appareil. 4. Cet appareil est équipé de l’ dispositif d’allumage qui automobile
allume maticallyle brûleur. Ne tentez pas d’allumer le brûleur manuellement. 5. Tourner la chaudière externe manuelle poignée en clapet à gaz dans le sens des aiguilles d’une montre pour fermer l’offre de gaz (Position OFF). 6. Attendre cinq (5) minutes pour laisser échapper tout le gaz. Reniflez tout autour de l’appareil, y compris près du plancher, pour déceler une odeur de gaz. Si vous seutez une odeur de gaz,
ARRÊTEZ ! Passez à l’étape B des instructions de sécurité sur la portion supérieure de cette étiquette. S’il n’y a pas d’odeur de gaz, passez à l’étape suivante. 7. Tourner la chaudière externe manuelle compteur de poignée
en clapet à gaz ouvrir dans le sens des aiguilles d’une montre le gaz approvisionnement (Position ON). 8. Mettez l’appareil sous tension. 9. Réglez le thermostat à la température désirée. 10. Si l’appareil ne se met pas en marche, suivez les instructions intitulées « Comment couper l’admission de gaz de l’appareil » et appelez un technicien qualifié ou le fournisseur de gaz.

EXTERNAL BOILER MANUAL GAS VALVE

LA CHAUDIÈRE EXTERNE MANUELLE DE CLAPET A` GAZ

TO TURN OFF GAS TO APPLIANCE/ COMMENT COUPER L’ADMISSION DE GAZ

DE L’APPAREIL

1. Set the thermostat to lowest setting. 2. Turn off all electric power to the appliance if service is to be
performed. 3. Turn the external boiler manual gas valve handle clockwise
to close gas supply (OFF Position).

1. Réglez le thermostat à la température la plus basse. 2. Coupez l’alimentation électrique de l’appareil s’il faut procéder à l’entretien. 3. Tourner la chaudière externe manuelle poignée en clapet à gaz dans le
sens des aiguilles d’une montre pour fermer l’offre de gaz (Position OFF).

101607-04

Figure 14-9: Lighting and Operating Instructions

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53

PHTM II Installation, Operating & Service Instructions
14 Start-Up and Checkout (continued)

Boiler Sequence of Operation

Table 14-10: Boiler Sequence of Operation

Status Screen Display
Priority: Standby Status: Standby
Priority: Standby Status: Pump Purge
Priority: Central Heat Status: Standby
Priority: Central Heat
Status: Prepurge
Priority: Central Heat
Status: Burner Ignition
Priority: Central Heat
Status: Calibration
Priority: Central Heat
Status: Run
Priority: DHW Status: Run
Priority: Standby Status: Post-purge
Priority: Standby Status:
Hold
Priority: Standby Status: Lockout

Description

Burner – Off

Pump(s) – Off

There is no call for heat, boiler is not firing and priority is “standby”. Boiler is ready to respond to a call for heat. Additionally, boiler and pumps remain off when Warm Weather Shut Down is active or “Boiler Switch” (A01) is set to “Off”.

Burner – Off

Pump(s) – Cycle

Pump Air Elimination (Pump Purge) is entered when power is cycled or when there has been a supply high limit hold. During this state boiler pump cycles on and off every 5 seconds for two minutes to help remove air from boiler water piping. This may be
interrupted by pressing ” ! reset” button.

Burner – Off

Pump(s) – Cycle

Boiler is not firing. There is a CH demand and supply temperature is greater than setpoint minus “Diff Below”.

Burner – Off

Pump(s) – On

When supply temperature drops, burner demand continues with following status shown: Waiting For Limit To Close: blower started, air pressure switch is checked. Prepurge: blower is driven to prepurge speed to empty chamber of flue products.

Burner – On

Pump(s) – On

After prepurge is complete following status is shown: Burner Ignition: Spark and fuel valve are energized.

Burner – On

Pump(s) – On

After burner is started, a Calibration is initiated due to 1. Power Cycle 2. Periodic requirement Calibration: after blower reaches calibration speed setting, flame signal setpoint is calibrated, next blower drives to low fire and fuel valve output is calibrated (runs for 1 minute).

Burner – On

Pump(s) – On

After burner ignition (following calibration), the following status is shown: Low Fire Hold: modulation rate held at low fire to allow initial home heating Run (Modulate): Burner rate modulates to match home heat requirements.

Burner – On

Pump(s) – On

If CH demand is active and a DHW demand is received, DHW demand becomes “priority” and modulation rate, setpoint, “Diff Above” and “Diff Below” are based on DHW settings.

Burner – Off

Pump(s) – Off

If there is no call for heat, fuel valve is closed and blower is driven to post-purge speed to empty combustion chamber of flue products.

Burner – Off

Pump(s) – Off

Hold status is entered when a delay is needed before allowing burner to fire. See user display door label or section 18 Troubleshooting to determine cause of the Hold.

Burner – Off

Pump(s) – Off

A lockout status is entered to prevent boiler from running due to a detected problem. See user display door label or section 18 Troubleshooting to determine cause of Lockout. Last 8 Lockouts are recorded in Lockout History.

54

110332-05 – 8/23

15 Operation
User Display Overview
+ ­

PHTM II Installation, Operating & Service Instructions
reset

Figure 15-1: Display Icons

Table 15-2: Display Descriptions

180°F

When not flashing or alternating display temperature is boiler supply temperature.

Visible when Central Heat demand is present.

Visible when DHW demand is present. Icon will flash if DHW setpoint is being adjusted.

Visible when burner is firing. Icon adjacent to active priority.
Combi boilers only.

Visible when CH setpoint reset is enabled.

Visible when adjust mode is active. Icon will flash if manual mode is enabled.
Visible when manual reset lockout is active.

110332-05 – 8/23

55

15 Operation (continued)

PHTM II

Operating Mode
Basic boiler status is displayed and DHW setpoint may be adjusted.

reset

+ ­

Figure 15-3: Viewing boiler status
Press “” or “” buttons to cycle through Status List. Each item will alternate between status code and its corresponding value.

Table 15-4: Status List

Display

Description

StA Status (see Table 15-5)

SP Active, Operating Setpoint

bt Boiler Supply Temperature

rt Boiler Return Temperature

Ft Flue Temperature

ot Outdoor Air Temperature*

ht Header* Temperature

Fr Demanded Firing Rate

rUn Run Time Hours

CYC Boiler Cycles

H## Hold or Warning Condition

E## Manual Reset Lockout

* Feature available with PAT-Connect Bluetooth Adaptor and App.

Installation, Operating & Service Instructions

The STA (status) display code contains below listed values.

Table 15-5 Managing of Status Numbers

Display

Description (see Section 18 Troubleshooting for explanation)

0

Self Check

1

Standby

2

Waiting For Air Pressure Switch To Close

3

Prepurge

4

Burner Ignition

5

Calibration

6

Low Fire Hold

7

Rate Limit

8

Run (Modulate)

9

Postpurge

10 Pump Air Elimination (2 minutes)

11 Standby Delay

12 Lockout

13 Boiler On/Off Switch (A01)

14
*

Warm Weather Shutdown*

* Feature available with PAT-Connect Bluetooth Adaptor and App

reset
+ 120
­

Figure 15-6: Adjusting DHW Setpoint
Press “+” or “-” buttons to immediately change the DHW setpoint. Faucet and DHW Setpoint flash while editing.

56

110332-05 – 8/23

15 Operation (continued)

PHTM II Installation, Operating & Service Instructions

Adjust Mode Menu

Diagnostic information and Quick Menu parameters are available without entering a password. Press and Hold

“menu” button for 3 seconds to access Adjust Mode.

reset

Press

+

buttons

to adjust

parameters.

­

Press buttons to view next menu or parameter.

Press and hold for three seconds to access Adjust Mode
Press to exit current menu or cancel current editing session

Press to select menu or parameter to edit.

Figure 15-7: Adjusting Parameters

Menu c, Diagnostic Menu

Press “” or “” buttons to switch between menus A, b, C, and PAS, press “enter” to Select. The following items are available in the A menu. Menu A, Quick Menu

Table 15-8: Quick Menu (with no password entered)

Display

Range

Description

A01

On/Off Boiler On/Off Switch

A02

On/Off Recirc (Comfort) Mode*

A03

60 -190°F (16 – 88°C)

DHW Setpoint

A04

60 – 190°F (16 – 88°C)

Central Heat 1 Setpoint

A05

60 -190°F (16 – 88°C)

Central Heat 2 Setpoint

*Combi boilers only.
A01 Boiler Switch Allows an installer to prevent boiler starts while reviewing boiler settings.
A02 Recirculation (Comfort) Mode Combi boilers only.
A03 DHW Setpoint Desired boiler water temperature during DHW demand.
A04 Central Heating 1 Setpoint Desired water temperature of Central Heat 1 (CH1).
A05 Central Heating 2 Setpoint Desired water temperature of Central Heat 2 (CH2).

Table 15-9: Diagnostic Menu

Display

Description

C01 Active Detailed Fault Code (see Table 18-6)

Demand Source

1 Standby

2 Central Heat 1

3 Central Heat 2

4 Domestic Hot Water C02
5 Sequencer Control

6 CH Frost Protection

7 DHW Frost Protection

8 Boiler On/Off Switch

9 Warm Weather Shutdown

C03 Fan Speed Demanded (RPM x 100)

C04 Fan Speed Feedback (RPM x 100)

C05 Three-way valve status (0) DHW, (1) CH*

C06 System Pump On/Off Status

C07 Boiler Pump On/Off Status

C08 Auxiliary Pump On/Off Status

C09 Flame Signal

C10 Safety Software Revision

C11 Application Software Revision

C12 Parameter Revision

Boiler Size Status: (1) 136 combi

(2) 200 combi

(3) 080 heat only

C13 Menu b, Lockout/Hold History Menu b01 to b08 are Lockout or Hold history records. b01 is latest entry. To clear error code history, scroll to B01
and hold ! reset button until B01 = 0
110332-05 – 8/23

(4) 120 heat only (5) 150 heat only (6) 180 heat only (7) 136 combi (B) (8) 120 heat only (B)
57

15 Operation (continued)

PHTM II Installation, Operating & Service Instructions

Accessing Password Protected Menus
Password protected parameters are available by entering a password.

reset
+ ­
Figure 15-10: Menu Structure

Press and hold the “menu” for 3 seconds, Press “” or “” buttons until PAS is visible and press “enter”. Press “enter” while PA1 is visible. Press “+” or “-” buttons until desired value is reached (password is 86).
(Press and hold for 5 seconds enables adjustment by increments of 10) Press “enter” to accept value (password only). Pressing “menu” to exit.

Navigating Menus
Entering password in “Adjust Mode” allows access to shaded menus below and additional items in Quick Menu.
“” or “”

*

Menu Structure
* Only shows when communicating Zone Panel connected

IMPORTANT
This boiler is equipped with a feature that saves energy by reducing boiler water temperature as heating load decreases. This feature is equipped with an override which is provided primarily to permit the use of an external energy management system that serves the same function. THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE:
· An external energy management system is installed that reduces boiler water temperature as heating load decreases.
· This boiler is not used for any space heating. · This boiler is part of a modular or multiple
boiler system having total input of 300,000 BTU/hr or greater. · This boiler is equipped with a tankless coil.
58

! WARNING
Asphyxiation Hazard. · Parameter changes should only be made by a qualified installer, service agency or gas supplier. · Fuel Gas Selection (parameter A06) must match fuel gas supply AND gas valve fuel setting (see Figure 14-2). · Altitude Selection (parameter A07) must match boiler installation location. Only change these settings if required to match site conditions. These settings determine minimum and maximum blower speeds. · Incorrect fuel gas and altitude settings could cause unreliable operation at elevated carbon monoxide (CO) levels, resulting in severe personal injury, death or substantial property damage.
110332-05 – 8/23

15 Operation (continued)

PHTM II Installation, Operating & Service Instructions

Table 15-11: Menu A, Quick Menu (items A06, A07, A08 and A09 visible only after password entered)

Default

Range/ Choices

Parameter and Description

A01 Boiler On/Off Switch

On

On/Off

Boiler switch allows an installer to prevent boiler starts while boiler powered and reviewing boiler

settings. Control is factory set with boiler switch in “On” position.

A02 Recirculation (Comfort) Mode

Off

On/Off

Combi boilers only.

170°F

60°F – 190°F A03 DHW Setpoint (16°C – 88°C) Desired boiler water temperature to IWH produced during DHW demand.

180°F 83°C

60°F – 190°F A04 Central Heat 1 Setpoint (16°C – 88°C) Desired water temperature of CH1.

180°F 83°C

60°F – 190°F A05 Central Heat 2 Setpoint (16°C – 88°C) Desired water temperature of CH2.

A06 Fuel Gas Selection (visible only after password entered):

Boiler is shipped from factory configured for natural gas. Conversion to LP Gas requires 2 steps:

· changing this parameter to (1) LP Gas AND

0

0, 1

· changing gas valve setting from position “1” to position “2” . If conversion to LP Gas is required,

refer to manual Section 14 Startup and Checkout for complete instructions.

(0) Natural Gas

(1) LP Gas

A07 Altitude Selection (visible only after password entered):

Boiler is shipped from factory configured for sea level (0 to 2000 ft. / 0 to 610 Meters).

(0) 0 to 2000 feet (0 to 610 Meters)

0

0

(1) 2,001 to 6,000 ft. (611 m to 1,828 m)

(2) 6,001 to 8,000 ft. (1,829 m to 2,438 m)

(3) 8,001 to 10,100 ft. (2,439 m to 3,079 m)

A08 Calibrate (visible only after password entered):

Setting to “On” enables a manual calibration to be attempted at next boiler start. For immediate

Off

On/Off

calibration cycle CH demand or cycle A01 Burner On/Off Switch.

On Manual calibration is requested

Off Manual calibration is not requested

A09 Gas Valve Offset (visible only after password entered):

29

13-46

Gas valve offset is set automatically during calibration. When replacing an old gas valve with a new

gas valve, it is possible boiler will not start unless this value is changed. For this situation, set Gas

Valve Offset to 30 to allow the boiler to start.

A10 Factory Default (visible only after password entered):

Returns all parameters back to the original factory default.

Off

On/Off

Must be set after a repair control is installed.

On Set all parameter values to Factory Default value.

Off No action

110332-05 – 8/23

59

15 Operation (continued)

PHTM II Installation, Operating & Service Instructions

Table 15-12: Menu FR, Firing Rate (visible only after password entered)

Default Range/ Choices

Parameter and Description

Off
100% 100% 100% 100%
0% 0%
0%

On/Off
0-100%
0-100%
0-100%
0 – 100%
0 – 30% 120
-9% to +8% 120 (B)
-9% to +8% 150 + 180 -9% to +3%
120 -16% to +14%
120 (B) -16% to +14%
150 + 180 -8% to +14%

F01 Manual Modulation Enable Setting to “On” allows technician to fire at rate specified in F02. To return to Auto change setting to “Off”. Note: Boiler will remain in Manual modulation for 15 minutes after last F02 adjustment. After 15 minutes boiler automatically returns to Auto modulation. On Manual Off Auto F02 Manual Modulation Firing rate used when F01 is set to “On”. Note: Manual Modulation will not rise above a specific priority’s max modulation or go below minimum modulation. For example, when set to 0%, boiler ramps to minimum modulation and when set to 100% with a CH priority, boiler ramps to CH Max modulation. F03 Central Heat 1 Max Modulation Defines highest modulation rate during a CH1 demand, Heat T’stat input. If rated input of installed home radiation is less than maximum output of boiler, change F03 setting to limit boiler output accordingly. F04 Central Heat 2 Max Modulation Defines highest modulation rate during a CH2 demand, Aux T’stat input (when selected). If rated input of installed home radiation is less than the maximum output of the boiler, change F04 setting to limi

Documents / Resources

Velocity PHTM2080H Phantom II Heat Only Boiler Works [pdf] Instruction Manual
PHTM2080H Phantom II Heat Only Boiler Works, PHTM2080H, Phantom II Heat Only Boiler Works, Boiler Works, Works

References

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