GREE CONS12HP230V1AF Mini Floor Console Indoor Unit Owner’s Manual

GREE CONS12HP230V1AF Mini Floor Console Indoor Unit

NOMENCLATURE

SAFETY PRECAUTIONS

Please read the following before operation

Recognize safety information. This is the safety-alert symbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury. Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in severe personal injury or death.
WARNING signifies hazards which could result in personal injury or death.
CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.
NOTE: Your actual air conditioning & heating system and related devices may differ from the images shown in this manual.
WARNING  This appliance is not intended for use by children without responsible adult supervision. Proper care should be taken to ensure safety.
WARNING  Heat pumps, air conditioners & heating equipment should be installed, started up, and serviced only by qualified installers and service technicians. Air conditioning, heat pumps and refrigeration systems are hazardous due to high voltage electrical components, high refrigerant pressures, and moving parts.
WARNING

• Disconnect electrical power to the indoor and outdoor units before performing any maintenance or cleaning.
• Do not attempt to repair the GREE system yourself. Incorrect repairs may cause electric shock or fire. Contact a qualified service technician for all service requirements.
• Keep combustible materials away from the unit.

CAUTION

• Do not put hands or any objects into the air inlets or outlets. This may cause personal injury or damage the unit.
• When cleaning, be careful not to splash water on the unit. Doing this may cause electric shock or damage to unit.
• Do not use or place any flammable, combustible or noxious substance next to the unit.
• In the event of a failure (burning smell, etc.), immediately disconnect all electrical power to indoor and outdoor units.
• Never try repairing the system yourself; contact a qualified service technician for all repairs.

PART NAMES

Indoor unit

DISCLAIMER
Not all items shown may be included with equipment purchase. Consult your equipment supplier for a list of all items included for your application.

Part Name

1. Air Filter
2.  Air outlet
3.  Display
4. Front panel
5. Louvers (vertical blades)
6. Air inlet
7.  Air filter
8. Flap (horizontal blade)
9. Cool mode lamp
10.  Heat mode lamp
11. Dry mode lamp
12. Run lamp
13. LED display
    Indoor Unit ON/OFF switch:
14. Signal receiver:
    • It receives signals from the remote controller.
    • When the unit receives a signal, you will hear a short beep.
    • Any change of settings will also give a short beep.
15.  Air outlet selection switch
16.  Room temperature sensor:
17. Remote controller

Outdoor unit

Part Name

1. Front Panel
2. Service Cover
3. Liquid Pipe
4. Gas Pipe
5. Drain Pipe

CAUTION

• Before opening the front panel, be sure to stop the operation and turn the breaker OFF.
•  Do not touch the metal parts on the inside of the indoor unit, as it may result in injury.
• The refrigerant pipe, drain pipe and electrical wiring for this unit should be installed by a qualified HVAC professional only.

SYSTEM FUNCTIONS

WHISPER QUIET
Not only are the GREE systems energy efficient but they are quiet too. Mini-Floor Console A Series units operate with sound pressure levels starting as low as the 09 goes down to 25 dB(A).

MULTI FAN SPEEDS
Whether operating in either Cooling or Heating mode, the indoor fan can be set to your choice of fan speed plus Turbo to achieve maximum comfort.

INTELLIGENT PREHEATING
This system guards against the annoying cool air blown into the room in heating mode. The system constantly monitors the discharge air temperature. It will delay the indoor fan until the indoor coil has warmed up to prevent blowing uncomfortable cool air into the room.

I-FEEL FUNCTION
The unit will sense room temperature at the remote controller instead of at the indoor unit. It then adjusts airflow and temperature accordingly for ultimate personal comfort.

ADJUSTABLE AIRFLOW
The adjustable swing louvers can be controlled from the remote controller. Vertical swing louvers allows five different air discharge directions including Continuous Sweep. Maximize comfort by adjusting the direction of airflow in the room by moving the louvers up or down.

TURBO MODE
Use Turbo Mode for situations where you wish to achieve the desired room temperature in the shortest possible time. This mode runs the unit at ultra high speeds for quickest results.

VACATION MODE (FREEZE GUARD)
Vacation mode (freeze guard) sets the unit to 46°F (8°C) in heating to keep the temperature in the space above freezing.

TIMER MODE
The unit can be programmed to turn ON or OFF after a specific amount of time. The time period is adjustable between one half and 24 hours.

MODE BUTTON
The unit can be set to five different operating modes: HEAT COOL, DRY, FAN ONLY and AUTO.

SLEEP MODE
Mini-Floor Console A Series offers a Sleep Mode function for your comfort. The unit will automatically adjust room temperature during your sleep time. This slight change in temperature will not affect your comfort level due to the natural effects that sleeping has on the body but it will save on energy consumption and will lower electric bills.

ENERGY SAVINGS MODE
This feature will automatically select the optimal compressor and fan speeds to allow for energy savings while operating in Cooling or Heating modes. The compressor and fan will automatically slow down as the room temperature reaches the set point.

SELF-DIAGNOSIS
This System has a built-in computer which uses real-time diagnostics which help prolong the unit’s life. The automatic diagnosis feature continuously scans for errors or malfunctions and fault codes are shown on the unit display to facilitate troubleshooting and repair.

POWER FAILURE MODE
Power interruptions are no problem for the Mini-Floor Console A. User selections and system parameters are stored in non-volatile memory. These parameters are retained during a power failure. When power is returned, the Mini-Floor Console A Series system will automatically return to the last operating mode.

INTELLIGENT DEFROST
The Intelligent Defrost function increases room comfort and saves energy by eliminating unnecessary defrost cycles. In heating mode, the unit will monitor the outdoor coil for frost build up. Once frost buildup has been detected, the system will switch into a defrost mode to remove the frost.

WASHABLE POLYMERIC AIR FILTER
The polymeric mesh filters save energy by preventing the indoor coils from being plugged with dirt and lint. This economical and sturdy filter may be washed, vacuumed and reused.

FAHRENHEIT / CELSIUS
The remote controller and wired controller can be set to display in either °F or °C.

REMOTE LOCK-OUT
The remote controller has a Lock feature. The Lock averts unauthorized access or tampering with system settings.

AGENCY LISTINGS
All systems are listed with AHRI (Air Conditioning, Heating, and Refrigeration Institute) and are ETL certified per UL Standards.
MINI-FLOOR CONSOLE A SERIES OWNERS MANUAL – INDOOR UNIT | 8

OPERATION OF REMOTE CONTROLLER

DISCLAIMER
All functions are not available for this unit.

Introduction for buttons on remote controller

NOTE

• This is a general use remote controller. It could be used with multiple GREE multi-functional models. If a function is not available on your model, pressing the button will have no effect.
•  After turning the power on, the unit will give out a sound. When the power indicator light is on “ “, you can operate the system using the remote controller.
• The signal icon “ “ will blink once and emit a “di” sound when the ON button is pushed. This indicates a signal has been sent to the unit to turn on.
• When selecting “HEAT”, the air conditioner operates under heat mode. Press “ “ or “ “ button to adjust set temperature. Press “FAN” button to adjust fan speed. Press “ “ / “ “ button to adjust fan blowing angle.

Press this button to turn on the unit. Press this button again to turn off the unit.
Press this button to select your required operation mode.

• When selecting the auto mode, the unit will operate automatically according to the factory settings. Press “FAN” button to adjust fan speed. Press “ “ / “ “ button to adjust the fan blowing angle.
• After selecting “COOL”, the unit will operate under cool mode. Press the “ “ or “ “ button to adjust the set temperature. Press “FAN” button to adjust fan speed. Press “ “ / “ “ button to adjust fan blowing angle.
• When selecting DRY mode, the air conditioner operates at low speed under DRY mode. Under DRY mode, fan speed can’t be adjusted. Press “ “ / “ “ button to adjust fan blowing angle.
• When selecting “FAN”, the unit will operate in a “fan only” mode (no heating or cooling), and all indicators will be off. When all indicators are off, press “FAN” button to adjust fan speed. Press “ “ / “ “ button to adjust fan blowing angle.

NOTE

• When selecting the HEAT mode, there will be a 1-5 minute delay to allow the coil to warm up before the fan blows. This prevents cold air blowing at start up.
•  Set temperature range from remote controller: 16-30 °C (61-86°F);
•  Under AUTO, temperature can be displayed and adjusted.
  Pressing this button can set fan speed circularly as: auto (AUTO), low ( ) ,medium ( ), high ( ).
  

NOTE

• Under AUTO speed, the system will select proper fan speed automatically according to factory default setting.
• It’s low fan speed under DRY mode.
• X-FAN function: Holding fan speed button for 2s in COOL or DRY mode, the icon “ “ is displayed and the indoor fan will continue operation for a few minutes to dry the indoor coil, even though you have turned off the unit. After start-up, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT modes.
  This function helps remove moisture on evaporator of indoor unit after the unit is stopped.
• Having set X-FAN function on: After turning off the unit by pressing ON/OFF button, indoor fan will continue running for a few minutes at low speed. In this period, hold fan speed button for 2s to stop indoor fan.
  Turn off the X-FAN function by pressing the ON/OFF button.

Under COOL or HEAT mode, press this button to turn to quick COOL or quick HEAT mode. “ “ icon is displayed on remote controller. Press this button again to exit turbo function and “ “ icon will disappear. This function will allow the unit to run at very high fan speed to reach the desired temperature.

• Press “ “ or “ “ button to increase or decrease the set temperature 1 °C(2°F). Hold “ “ or “ “ button for 2 Sec, set temperature on remote controller will change quickly. Temperature indicator on indoor unit will change accordingly.
• When setting T-ON, T-OFF or CLOCK, press “ “ or “ “ button to adjust time. (Refer to CLOCK, T-ON, T-OFF buttons)

Press this button to select left & right swing angle. Fan blowing angle can be selected circularly as below:

NOTE

• Press this button continuously more than 2s, the louver will swing back and forth from left to right, when you release the button, the louver will stop swinging at its present position.
• Under left and right swing mode, when the status is switched from off to , pressing this button again for 2s and status will switch to off status; pressing this button again for 2s, will change the swing status according to the sequence shown above.
• This function is not available for this unit

Press this button to select up & down swing angle. Fan angle can be selected circularly as below:

• Select “ “, to select automatic fan circulation. Horizontal louver will automatically swing up & down at maximum angle.
• Select “ “, and fan modulation will stop at that fixed position. Horizontal louver will stop at the fixed position.
• Hold “ “ button more than 2s to set your required swing angle. When reaching your desired angle, release the button.
• Pressing this button continuously for more than 2s, the louver will swing back and forth from up to down, release the button, will stop the louver at the desired position.
• Under up and down swing mode, when the status is switched from off to . Pressing this button again for more than 2s will turn off the status. Pressing again within 2s, will change the swing status to the diagram above.
• T-ON button
  “T-ON” button will set the time for timer on. After pressing this button, “ “ icon disappears and the word “ON” on remote controller blinks. Press “ “ or “ “ button to adjust T-ON setting. After each pressing “ “ or “ “ button, T-ON setting will increase or decrease 1min. Hold “ “ or “ “ button, 2s longer and the time will change quickly until reaching your desired time. Press “T-ON” to confirm. The word “ON” will stop blinking. “ “ icon resumes displaying. Cancel T-ON: If T-ON is initiated, press “T-ON” button to cancel it.
• T-OFF button
  “T-OFF” button will set the time for timer off. After pressing this button, “ “ icon disappears and the word “OFF” on remote controller blinks. Press “ “ or “ “ button to adjust T-OFF setting. After each press of the “ “ or “ “ button, T-OFF setting will increase or decrease 1 min. Holding the “ “ or “ “ button for more than 2s the time will change quickly until reaching your desired time. Press “T-OFF” and “OFF” will stop blinking. “ “ icon resumes displaying. To cancel
  T- OFF when it’s on, “T-OFF” button to cancel it.

NOTE

• Under status, you can set T-OFF or T-ON simultane-ously.
• Before setting T-ON or T-OFF, please set the clock.
• After starting T-ON or T-OFF, set to “circulating” mode.
• Your unit will be turned on or turned off according to setting. ON/OFF button has no effect on setting. If you don’ t need this function, please use remote controller to cancel it.

Press this button to start I FEEL function and “ “ will be displayed on the remote controller. When set, the remote controller will send the detected ambient temperature to the controller and the unit will automatically adjust the indoor temperature according to the detected temperature. Press this button again to cancel I FEEL function and “ “ will disappear.

• Put the remote controller near the user when this function is set. Avoid putting the remote controller near an object of high or low temperature. When I FEEL function is turned on, the remote controller should be put where the indoor unit can receive the signal sent by the remote controller.

Press this button to set clock time. “ “ icon on remote controller will blink. Press “ “ or “ “ button within 5s to set clock time. Pressing the “ “ or “ “ button, clock time will increase or decrease 1 min. If you hold “ “ or “
“ button for longer than 2s the time will change rapidly. Release this button when reaching your required time. Press “CLOCK” button to confirm the time. “ “ icon stops blinking.

NOTE

• This is a 24 hour clock.
• A delay of more than 5s in setting the ON and OFF times will cancel the set-up and you will have to start over. Operation for TIMER ON/TIMER OFF is the same.

Under COOL or HEAT mode, press this button to start up sleep function. “ “ icon is displayed on remote controller. Press this button again to cancel sleep function and “ “ icon will disappear.

• During this procedure, if no button is pressed within 10 seconds, remote controller will automatically exit the sleep curve setting and resume original display. If ON/OFF, SLEEP, COOLING or HEATING button is pressed during the setting or inquiry procedure, remote controller will also exit the sleep curve setting.

Press this button to turn off display light on indoor unit. “ “ icon on remote controller disappears.
Press this button again to turn on display light. “ “ icon is displayed.
Press this button to see the indoor set temperature on the unit’s display. The setting on remote controller is selected circularly as below:

Function introduction for combination buttons

Energy-saving function
Under COOL mode, press “TEMP” and “CLOCK” buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, “SE” will be shown on remote controller, and the unit will adjust the set temperature automatically, to the factory setting, to achieve maximum energy savings. Press “TEMP” and “CLOCK” buttons simultaneously again to exit energy-saving function.

NOTE

• Under energy-saving function, fan speed defaults to Auto and can’t be adjusted.
• Under energy-saving function, you cannot adjust Fan speed or use TURBO.
• If the energy-saving function has been set in the COOL mode, pressing the “SLEEP” button will cancel energy-saving. If the SLEEP function has been set in the COOL mode, starting the energy-saving function will cancel SLEEP.

Vacation mode (freeze guard) Heating in 8°C mode or 46°F mode
In the HEAT mode, press “TEMP” and “CLOCK” buttons simultaneously to start up or turn off this heating function. When this function is started up, “ “ and “46°F (8°C)” will be shown on remote controller, and the space will not fall below 46°F (8°C). Press “TEMP” and “CLOCK” buttons simultaneously again to exit “46°F (8°C)” heating function.

NOTE

• Under 46°F (8°C) heating function, fan speed is defaulted at auto speed and it can’t be adjusted.
• Under 46°F (8°C) heating function neither the temperature nor the fan speed can be adjusted. “TURBO” will not work either.
• Sleep function and 46°F (8°C) heating function can’t operate at the same time. If 46°F (8°C) heating function has been set under heat mode, pressing the “SLEEP” button will cancel 46°F (8°C) heating function. If sleep function has been set under heat mode, initiating the 46°F (8°C) heating function will cancel SLEEP function.

Remote lock-out
Press “ “ or “ “ simultaneously to turn on or turn off Remote lock-out. When Remote lock-out is on, “ “ icon is displayed on remote controller. If you operate the remote controller, the “ “ icon will blink three times without sending signal to the unit.

Temperature display switchover function
Under OFF status, press “ ” and “MODE” buttons simultaneously to switch temperature display between °C and °F.

Replacing batteries in remote controller

1. Lift the cover along the direction of arrow (as shown in Fig 1 ).
2. Take out the original batteries (as shown in Fig 1 ).
3.  Place two (AAA 1.5V) dry batteries, and make sure the position of “ + ” polar and “ – ” polar is correct (as shown in Fig 2 ).
4. Reinstall the cover (as shown in Fig 2 ).

NOTICE

• During operation, point the remote control signal sender at the receiving window on indoor unit.
•  The distance between signal sender and receiving window should be no more than 26 ft and there should be no obstacles between them.
•  Other electronics may interfere with the remote signal, remote controller should be close to indoor unit during operation.
•  Replace batteries with an equivalent model when replacement is required.
• When you don’t use remote controller for a long time, take out the batteries.
• If the display on remote controller is fuzzy or there’s no display, replace batteries.

CARE AND CLEANING

• Turn off the air conditioner and disconnect the power before cleaning the air conditioner to avoid electric shock.
• Do not wash the air conditioner with water to avoid electric shock.
• Do not use volatile liquid to clean the air conditioner.
• Do not use liquid or corrosive detergent to clean the appliance and do not splash water or other liquid on it to avoid damaging the plastic components or causing an electric shock.

Clean surface of indoor unit
Only a qualified service person is allowed to perform maintenance.
Before accessing to terminal devices, all power supply circuits must be disconnected.
Clean the filter and the outside panels with warm water, and do not use excessive heat to dry.

NOTE

• Do not operate the air conditioner with the filter uninstalled,  otherwise dust would come into the unit.
• Do not remove the air filter except for cleaning. Unnecessary  handling may damage the filter.
• Do not clean the unit with gasolene, benzene, thinner, polishing powder or liquid insecticide, otherwise it would cause discoloration and deformation of the unit.
•  Do not wet the indoor unit in case of electric shock or fire hazard.  Increase the frequency of cleaning if the unit is installed in a room where the air is extremely contaminated. (As a yardstick for yourself, consider cleaning the filter once a half year.)  If dirt becomes impossible to clean, change the air filter.

How to clean the Front Panel

1. Open the front panel.
   Slide the two stoppers on the left and right sides inward until they click.
2.  Remove the front panel.
   • Remove the string.
   • Allowing the front panel to fall forward will enable you to remove it.
3. Clean the front panel.
   •  Wipe it with a soft cloth soaked in water.
   • Only neutral detergent may be used.
   •  In case of washing the front panel with water ,dry it with cloth, dry it up in the shade after washing.
4. Attach the front panel.
   • Insert the front panel into the grooves of the unit (3 places).
   •  Attach the string to the right, inner-side of the front grille.
   • Close the panel slowly.

NOTE

• Don’t touch the metal parts of the indoor unit. If you touch those parts, this may cause an injury
• When removing or attaching the front panel, use a robust and stable stool and watch your steps carefully
• When removing or attaching the front panel, support the panel securely with hand to prevent it from falling.
• For cleaning, do not use hot water above 40°C, benzine, gasoline, thinner, nor other volatile oils, polishing compound, scrubbing brushes, nor other hand stuff.
• After cleaning, make sure that the front panel is securely fixed.

How to Clean Filter

1. Open the front panel.
2. Remove the air filter.
   Press the claws on the right and left of the air filter down slightly, then pull upward.
3.  Take off the Air Filter.
   Hold the tabs of the frame, and remove the claws in 4 places.
4. Clean filter.
5. Wash the air filters with water or clean them with vacuum cleaner.
   • If the dust does not come off easily, wash them with neutral detergent thinned with lukewarm water, then dry them up in the shade.
   • It is recommended to clean the air filters every week.
6. Set the air filter as they were and close the front panel.
   Operation without air filters may result in troubles as dust will accumulate inside the indoor unit.

NOTE

1. cannot deodorize the air.
2. cannot clean the air.
3. results in poor heating or cooling.
4. may cause odour.

TROUBLESHOOTING

Problem	Check items	Solution
Indoor unit isn’t receiving the remote controller signal.	Interference from static electricity	Disconnect power at breaker for 3 minutes.
	Is the remote controller within the signal receiving range?	Signal receiving range is 26 ft.
	Are there any obstacles?	The remote needs to have a clear path to the indoor unit receiver.
	Is the remote controller pointing at the receiving window?	Select proper angle and point the remote controller at the receiving window on indoor unit.
	Is sensitivity of remote controller low; fuzzy display or no display?	Check the batteries. If the power of batteries is too low, please replace them.
	No display when operating remote controller?	Check whether remote controller appears to be damaged. If yes, replace it.
	Electronic Interference?	Take the remote controller close to indoor unit. Turn off other electronics and then try it again.
No air coming from indoor unit	Air inlet or air outlet of indoor unit is blocked?	Eliminate obstacles.
	In the HEAT mode, has the indoor temperature reached the set temperature?	After reaching set temperature, the indoor fan will stop.
	You just turned on the HEAT mode.	In order to prevent cold air from blowing out it may take several minutes before the fan starts. This is normal.
Air conditioner isn’t coming on	Power failure?	Wait until power recovery.
	Loose wiring?	Contact your contractor or an electrician.
	Circuit breaker has tripped or fuse is burnt out?	Ask professional to replace circuit breaker or fuse.
	Wiring is overheating or needs repair.	Ask professional to replace it.
	Unit has restarted immediately after stopping operation?	Turn the unit off, wait 3 minutes then turn it back on.
	Does the remote controller show the correct setting?	Reset the function.
Mist coming from indoor unit’s air outlet	Indoor temperature and humidity is high?	Happens when the indoor air is cooled rapidly. After a while, indoor temperature and humidity will be decrease and mist will disappear.

General problem analysis

Please check below items before asking for maintenance. If the problem still can’t be eliminated, please contact local dealer or qualified professionals.

WARNING

•  When the following occurs, turn the unit off and disconnect power immediately, contact your installing contractor or a licensed HVAC technician.
  • Power supply wiring is overheating or damaged.
  • There’s abnormal sound during operation.
  • Circuit breaker trips off frequently.
  • Air conditioner gives off burning smell.
  •  Indoor unit is leaking.
• Do not try to service or repair the unit yourself.
• If the unit operates abnormally it may cause internal or external damage, electric shock or become a fire hazard.

ENERGY SAVING TIPS

1. Reduce room setpoint at night: During the night hours, you don’t require the same level of conscious cooling or heating. Try using Sleep Mode to gradually relax room temperature and allow the unit to run less and save energy.
2. Curtains and shades: In the summer, it is recommended to block the effects of the sun. Close window curtains and shades on the south and west side of your home to help block solar heat. In winter, the sun is your friend. Open curtains and shades to allow solar heat into your room.
3. Close doors: If you don’t need to heat and cool your whole home, confine the heating and cooling to one room by closing doors.
4. Service the unit: Some basic maintenance might be all you need. The outdoor unit will greatly benefit from a good hosing off, leaves, grass clippings and other debris can stick to coil fins and make the unit work up to 15% harder!
5. Rearrange the room: Furniture that obstructs the airflow, needs to be removed or rearranged accordingly.
6.  Try 75 degrees: 75°F is a good point for an air conditioner to run at its optimal performance level. Even a 5-degree change in temperature can make your unit use up to 40% more energy.
7.  Lighting: Turning lights off can help reduce your heat. Each light bulb is a tiny heater. Your air conditioner must waste energy overcoming the heat from your lights to reach and hold your desired room temperature.
8. Zero occupancy: During zero occupancy turn your unit to Auto mode and make sure windows and curtains are closed. Although room temperature may be less than optimal for a few minutes when you return, the unit will soon have the room back to your desired temperature.
9. Don’t forget the fan: The fan is much like a car. The faster it runs, the more energy it uses. Try saving money by using the comfortable quiet low fan speed as much as possible.

REGISTRATION

FOR WARRANTY SERVICE OR REPAIR:
Contact your installing contractor. You may find the installer’s name on the equipment or in your Owner’s packet or on your invoice.
ONLINE REGISTRATION IS AVAILABLE AT:
https://www.greecomfort.com/warranty-program/#registration
COMPLETE THE PRODUCT REGISTRATION BELOW:
Keep this for your files.

WARRANTY
For current warranty information please visit https://gree-comfort-dev.web.app/warranty-program/

Documents / Resources

GREE CONS12HP230V1AF Mini Floor Console Indoor Unit [pdf] Owner's Manual CONS09HP230V1AF, CONS12HP230V1AF, CONS18HP230V1AF, CONS12HP230V1AF Mini Floor Console Indoor Unit, CONS12HP230V1AF, Mini Floor Console Indoor Unit, Floor Console Indoor Unit, Console Indoor Unit, Indoor Unit

References

• System Documentation | GREE Comfort
• Warranty Program | GREE Comfort
• Warranty Program | GREE Comfort
• User Manual