York HTCA Installation Manual download pdf (Page 20)

ENGLISH

OPERATION TIPS

The following events may occur during normal operation.

1. Protection of the air conditioner.

Compressor protection

• The compressor cannot 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 following

three situations and the set temperature has not been reached.

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 cycle when outdoor temperature is low and humidity is

high resulting in lower heating efciency of the air conditioner.

• During this condition air conditioner will stop heating operation and start defrosting automatically.

•

The time to defrost may vary from 4 to 10 minutes according to the outdoor temperature and the amount of frost

buildup on the outdoor unit.

2. A white mist coming out from the indoor unit.

• A white mist may generate due to a large temperature dierence between air inlet and air outlet on COOL mode

in an indoor environment that has a high relative humidity.

• A white mist may generate due to moisture generated from defrosting process when the air conditioner restarts in

HEAT mode operation after defrosting.

3. Low noise of the air conditioner .

• You may hear a low hissing sound when the compressor is running or has just stopped running.

This sound is the sound of the refrigerant owing or coming to a stop.

•

You can also hear a low “squeak” sound when the compressor is running or has just stopped running. This is

caused by heat expansion and cold contraction of the plastic parts in the unit when the temperature is changing.

• A noise may be heard due to louver restoring to its original position when power is rst turned on.

4. Dust in blown out from the indoor unit.

This is a normal condition when the air conditioner has not been used for a long time or during  rst use of the unit.

5. A peculiar smell come out from the indoor unit.

This is caused by the indoor unit giving o smells permeated from building material, from furniture, or smoke.

The air conditioner turns to FAN only mode from COOL or HEAT (For cooling and heating models only) mode.

When indoor temperature reaches the temperature setting on air conditioner, the compressor will stop automatically,

and the air conditioner turns to FAN only mode. The compressor will start again when the indoor temperature rises

on COOL mode or falls on HEAT mode (For cooling and heating models only) to the set point.

7. Dripping water may generate on the surface of the indoor unit when cooling in a high relatively humidity (relative

humidity higher than 80%). Adjust the horizontal louver to the maximum air outlet position and select HIGH fan speed.

8. Heating mode (For cooling and heating models only)

The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit during heating operation.

When the outdoor temperature falls, heat drawn in by the air conditioner decreases accordingly.At the same time,

heat

loading of the air conditioner increases due to larger dierence between indoor and outdoor temperature. If a comfortable

temperature cannot be achieved by the air conditioner, we suggest you use a supplementary heating device.

9. Auto-restart function

Power failure during operation will stop the unit completely.

For the unit without Auto-restart feature, when the power restores, the OPERATION indicator on the indoor unit

starts ashing. To restart the operation, push the ON/OFF button on the remote controller. For the unit with Auto-

restart feature, when the power restores, the unit restarts automatically with all the previous settings preserved by

the memory function.

10.

Lightning or a car wireless telephone operating nearby may cause the unit to malfunction.

Disconnect the unit with power and then re-connect the unit with power again. Push the ON/OFF button on the

remote controller to restart operation.

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York HTCA Installation Manual Page 20

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