Haier HSU12XHK, Service Manual, Page: 17 / 71

HSU09/12XHK-SM Functions and Control
Domestic Air Conditioner
14
the indicator of indoor unit is on , and it is off when timer setting is completed. There are several timer mode
as follows.
5.1.5.1 Timer on: The LED of “timer on” lights up, and unit behaves with halt status. Timer on is
completed, and then unit starts running with the LED of “timer on” off. The unit starts with the the last setting
receiving timer signals, and sleep setting is not allowed.
5.1.5.2 Timer off: Unit starts, timer indicator lights up; When reaching time setting, the indicator goes out,
unit enters shut down mode, and sleep function can be set. If timer off and sleep are set synchronously, the
one which time is short run first. Executing shutdown instruction clear timer and sleep function.
5.1.5.3 Timer on and timer off can be set synchronously.
5.1.6 Sleep function :
the timer indicator lights up.
5.1.6.1 In cooling/defrosting mode, the temp. setting increases 1°F one hour later after start up. After
another hour the temp. setting increase by more 1°F and then run continuously for another 6 hours and then
close.
5.1.6.2 In heating mode, the temp. setting decrease 3°F one hour after start up. After another hour the
temp. setting decrease by more 3°F. After 3 hours the temp. setting rise by 1°F and then run continuously for
another 3 hours and then close.
5.1.6.3 If the wind speed is set to high before going to bed, the wind speed become medium after start
up; If the wind speed is set to medium before going to bed, the wind speed become low after start up; If the
wind speed is set to low before going to bed, the wind speed keep unchanged.
5.1.7 Emergency switch imput:
5.1.7.1 Press the switch of emergency operation, then buzzer rings once and unit enters the automatic
operation mode. (emergency operation)
5.1.7.2 If the switch is kept pressed for 5 seconds, buzzer ring two times and unit enter enter test run
mode.
5.1.7.3 Press the switch again, and then closes.