Carrier 42HQE018 Owner's Manual
Also see for 42HQE018: Installation manual
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Contents
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GB - 1342HQE009 / 012 / 018 / 022E N G L I S HOperation tipsThe following events may occur during normal operation.1. Protection of the air conditioner.Compressor protection• The compressor can't restart for 3 minutes after it stops.Anti-cold air (Cooling and heating models only).• The unit is designed not to blow cold air on HEAT mode,when the indoor heat exchanger is in one of the followingthree situations and the set temperature has not beenreached.A) When heating has just starting.B) Defrosting.C) Low temperature heating.• The indoor or outdoor fan stop running when defrosting(Cooling and heating models only).Defrosting (Cooling and heating models only)• Frost may be generated on the outdoor unit during heat cyclewhen outdoor temperature is low and humidity is highresulting in lower heating efficiency of the air conditioner.• During this condition air conditioner will stop heatingoperation and start defrosting automatically.• The time to defrost may vary from 4 to 10 minutes accordingto the outdoor temperature and the amount of frost buildup onthe outdoor unit.2. A white mist coming out from the indoor unit• A white mist may generate due to a large temperaturedifference between air inlet and air outlet on COOL mode inan indoor environment that has a high relative humidity.• A white mist may generate due to moisture generated fromdefrosting process when the air conditioner restarts in HEATmode operation after defrosting.3. Low noise of the air conditioner• You may hear a low hissing sound when the compressor isrunning or has just stopped running.This sound is the sound of the refrigerant flowing or coming toa stop.• You can also hear a low "squeak" sound when thecompressor is running or has just stopped running. This iscaused by heat expansion and cold contraction ofthe plastic parts in the unit when the temperature is changing.• A noise may be heard due to louver restoring to its originalposition when power is first turned on.4. Dust is blown out from the indoor unit.This is a normal condition when the air conditioner has notbeen used for a long time or during first use of the unit.5. A peculiar smell comes out from the indoor unit.This is caused by the indoor unit giving off smells permeatedfrom building material, from furniture, or smoke.6. The air conditioner turns to FAN only mode from COOL orHEAT (For cooling and heating models only) mode.When indoor temperature reaches the temperature setting onair conditioner, the compressor will stop automatically, and theair conditioner turns to FAN only mode.The compressor will start again when the indoor temperaturerises on COOL mode or falls on HEAT mode (For cooling andheating models only) to the set point.7. Dripping water may generate on the surface of the indoorunit when cooling in a high relatively humidity (relativehumidity higher than 80%).Adjust the horizontal louver to the maximum air outlet positionand select HIGH fan speed.8. Heating mode(For cooling and heating models only)The air conditioner draws in heat from the outdoor unit andreleases it via the indoor unit during heating operation. Whenthe outdoor temperature falls, heat drawn in by the airconditioner decreases accordingly.At the same time, heat loading of the air conditioner increasesdue to larger difference between indoor and outdoor temperatu-re. If a comfortable temperature can't be achieved by the airconditioner, we suggest you use a supplementary heatingdevice.9. Auto-restart functionPower failure during operation will stop the unit completely.For the unit without Auto-restart feature, when the powerrestores, the OPERATION indicator on the indoor unit startsflashing. To restart the operation, push the ON/OFF button onthe remote controller.For the unit with Auto-restart feature, when the power restores,the unit restarts automatically with all the previous settingspreserved by the memory function.10.Lightning or a car wireless telephone operating nearbymay cause the unit to malfunction.Disconnect the unit with power and then re-connect the unitwith power again.Push the ON/OFF button on the remote controller to restartoperation. |
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