AUX air conditioner service manual
43
(18000BTU~24000BTU)
1. The basic conditions for the operation of the controller
⑴The applicable voltage range of the electrical power: The input voltage 175 V – 253V;
The input AC current frequency: 50Hz⑵ ；
The operating temperature for electric control: ⑶ （-10~+70） ;℃
The operating moisture for electric control: RH20%~RH90%;⑷
⑸The indoor fan: RP plastic-sealed motor, three-impulse feedback signal;
⑹The outdoor fan: tap iron-shell motor, only one speed and the normal working current shall be
lower than 1.5A;
⑺The normal working current of the four-way valve: lower than 1A/220VAC;
⑻The Swing Motor: DC12V, Four phase eight step stepping motor;
⑼Compressor: Single-phase power supply, the normal working current shall less than 20A.
2. Partition of the controller’s function
The function of the controller consists of the following parts:
The remote control receiving function;⑴
Force operation function;⑵
The air vane’s automatic swing function and the position setting function;⑶
The buzzer’s driving function;⑷
The indoo⑸ r fan’s driving function;
The timing on⑹ -off function;
The compressor restarting protection function;⑺
The indoor heat⑻ -exchanger overheating protection function under heating mode;
The automatic defrosting and reheating function under heating mode;⑼
The anti⑽ -cold air functions under heating mode;
The anti⑾ -freezing function under cooling and defrosting modes;
Self⑿ -detecting function
3. The Specification of the main function
⑴he specialty terms and express:
TA: stands for the indoor ambiance temperature;
TE: stands for the indoor evaporator’s temperature;
TS: stands for the setting temperature;
TW: stands for the outdoor condenser’s temperature;
⑵Emergency switch
The air① -conditioner turns off if press on this button when the air-conditioner is working; the
air-conditioner turns on if press on this button when the air-conditioner is off, and it will work in an
automatic mode after press on this button. Then the indication light twinkles for 20 seconds and the
air-conditioner does not start working until the working mode to be selected by the system; the
air-conditioner automatically selects one of the cooling, dehumidification, and heating mode as the
working mode according to the indoor air temperature.
a) When TA≥27℃, the controller enters into the cooling mode and follows the mode in working. The
setting temperature herein is 24℃ and the setting wind speed is strong wind;
b) When 20℃< TA < 27℃, the controller enters into the dehumidifying mode and follows the mode in
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