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Owner’s Manual -  

B-VMH09,12,18,24DU-1

10

5.

Rinse the filter with clean water and allow

it to air-dry. 

DO NOT

 l

et the filter dry in

direct sunlight.

6.

Reinstall the filter.

Repairing Refrigerant Leaks

 WARNING

If the refrigerant leaks, turn off the air

conditioner and any combustible heating

devices, ventilate the room and call your

dealer immediately. Refrigerant is both toxic

and flammable. 

DO NOT 

use the air

conditioner until the leak is repaired.

 

When the air conditioner is installed in a

small room, measures must be taken to

prevent the refrigerant concentration from

exceeding the safety limit in the event of

refrigerant leakage. Concentrated

refrigerant causes a severe health and safety

threat.

Refrigerant Leak Detection System (some 
models)

In the event of a refrigerant leak, the LCD

screen will display “EC” and the LED

indicator light will flash.

Preparation For Periods Of Non-Use

Maintenance after Extended Non-Use

 

1.

 

Remove any obstacles blocking the vents of

both the indoor and outdoor units.

2.

 

Clean the air filter and the front grille of the

indoor unit. Reinstall the clean, dry air filter in

its original position.

3.

 

Turn on the main power switch at least 12

hours prior to operating the unit.

Storing the Unit While Not In Use

1.

 

Run the appliance on FAN mode for 12 hours

in a warm room to dry it and prevent mold.

2.

 

Turn off the appliance and unplug it.

3.

 

Clean the air filter according to the

instructions in the previous section. Reinstall

the clean, dry filter before storing.

4. Remove the batteries from the remote control.

3.

 

Remove the air filter.

4.

 

Clean the air filter by vacuuming the surface

or washing it in warm water with mild

detergent.
A.

  

If using a vacuum cleaner, the inlet side

should face the vacuum.

Fig. 4.

2

B.

  

If using water, the inlet side should face

down and away from the water stream.

Fig. 4.

3

Summary of Contents for Comfort-Aire Century B-VMH09DU-1

Page 1: ...OWNER S MANUAL Ducted Unit Models B VMH09DU 1 B VMH12DU 1 B VMH18DU 1 B VMH24DU 1 517 787 2100 www marsdelivers com...

Page 2: ...Owner s Manual B VMH09 12 18 24DU 1 2 THIS PAGE INTENTIONALLY LEFT BLANK...

Page 3: ...Owner s Manual B VMH09 12 18 24DU 1 3 Indoor Unit Parts and Major Functions 6 Manual Operations 8 Table of Contents Owner s Manual SAFETY FIRST Safety Precautions 5 1 2 3...

Page 4: ...Maintenance 9 a Unit Maintenance 9 b How to Clean the Air Filter 9 c Repairing Refrigerant Leaks 10 d Preparation for Periods of Non use 10 Troubleshooting 11 a Common Problems 11 b Troubleshooting Ti...

Page 5: ...iance must be installed by installers or contractors who are licensed HVAC professionals and in compliance with all local state and provincial laws Failure to observe a caution may result in injury or...

Page 6: ...fixed wiring according to the national rule If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard The applia...

Page 7: ...he room DO NOT place objects near the air inlet and outlet of the unit Set a timer and use the built in SLEEP ECONOMY mode if applicable If you don t plan to use the unit for a long time remove the ba...

Page 8: ...der AUTO FORCED COOL OFF FORCED COOL mode In FORCED COOL mode the Operation light flashes The system will then turn to AUTO after it has cooled with a high wind speed for 30 minutes The remote control...

Page 9: ...se chemicals or chemically treated cloths to clean the unit DO NOT use benzene paint thinner polishing powder or other solvents to clean the unit They can cause the plastic surface to crack or deform...

Page 10: ...EC and the LED indicator light will flash Preparation For Periods Of Non Use Maintenance after Extended Non Use 1 Remove any obstacles blocking the vents of both the indoor and outdoor units 2 Clean t...

Page 11: ...hanges its setting to prevent frost from forming on the unit Once the temperature increases the unit will start operating again The set temperature has been reached at which point the unit turns off t...

Page 12: ...on the indoor or outdoor unit is dirty Clean the affected heat exchanger The air filter is dirty Remove the filter and clean it according to instructions The air inlet or outlet of either unit is bloc...

Page 13: ...n 10 Off 10 Overload protection 1 On F0 11 Outdoor temperature sensor error 2 On F 1 12 Outdoor condenser pipe sensor error 3 On F2 13 Discharge air temperature sensor error 4 On F3 14 Outdoor EEPROM...

Page 14: ...When disposing of this appliance you have the following options Dispose of the appliance at designated municipal electronic waste collection facility When buying a new appliance the retailer will take...

Page 15: ...f of warranty period Without this proof the express warranty begins on the date of shipment from the factory Please visit www marsdelivers com to register your new product REMEDY PROVIDED BY THE LIMIT...

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