Haier HSU-22LV03 [10/32] Haier air conditione

Haier air conditioner Edition: 1.0-061028

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2.2 Sleep function (saving function at night)

The pattern of clock displayed on the LCD In cooling/defrosting mode, the

temperature setting increases 1℃? One hour later after startup. After another hour the

temp setting increases by more 1℃? And then run continuously for another 6 hours and

then close.

If the wind speed is set to high or medium before going to bed, the wind speed shifts

to medium or low. If the wind speed is set to low before going to bed, the wind speed keep

unchanged.

2.3 Protection of malfunction of temperature sensitive resistance.

The temperature sensitive resistor is short circuit or open circuit, the machine doesn’t

work.

z During defrosting, don’t detect if the temperature sensor short circuit or open circuit.

z Detect the temperature of coil pipe is below -40℃? Then think the temperature circuit

of coil pipe is open.

z Detect the temperature of coil pipe is above 95℃? Then think the temperature circuit

of coil pipe is short.

z Detect the temperature of inlet air is below -20℃? Then think the temperature circuit

of inlet air is open.

z Detect the temperature of inlet air is above 90℃? Then think the temperature circuit

of inlet air is short.

2.4 Emergency switch input

Press the switch of emergency operation, then buzzer rings once and unit enters the

automatic operation mode. (Emergency operation)

If the switch is pressed for 5 seconds and buzzer ring two times, unit enters into test run

mode. Press the switch again, and then closes.

The unit can receive remote control.

Enter emergency operation from timer mode, and then timer is cancelled.

Test run:

1) The temperature sensor of inlet air doesn’t work, and compressor starts (but subject to

the limit of 3 minute delay excluding the first time), and high wind, cooling, and air door is

open. The indoor fan motor runs, running indicator lights up, compressor relay and the

one of outdoor fan motor is closed.

2) During test run:

The prevention of freezing of evaporator doesn’t work.

Over current control doesn’t work.

The control of current peak expiration doesn’t work.

Temperature control doesn’t work.

Temperature expiration control doesn’t work.

The test run is over after 30 minutes, and then the unit turns off

2.5 Executive function after 2 seconds by remoter control

After receiving remote control signal, the mainboard doesn’t enter the corresponding

instruction task until 2 seconds elapse.