Haier AD182ALERA Service Manual page 31

receiving the timer signal for the last time. The SLEEP function only can be set before the TIMER ON
begins.
TIMER OFF: the unit running, the timer LED on, while the timer is over, timer LED off, the unit will
stop, the sleep can be set, the sleep time will replace the original time of TIMER ON/OFF.
TIMER ON/OFF set at the same time: when the timer on/off is set, the timer LED will be off; the
SLEEP function can be set, the sleep time will replace the original time of TIMER ON/OFF.
10 SLEEP function (energy saving function at night)
101 Standard sleep function: in cooling or dry mode, after
running at SLEEP mode for 1 hour, the set temperature will
rise 1℃, another 1 hour later, the set temperature will rise
another 1℃; the unit continues running for 6 hours, then the
unit will stop.
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can realize 1~8 hours sleep mode when being combined with the TIMER function.
1） When in Auto mode, the unit will make SLEEP operation due to the setting.
2） After setting SLEEP function, the clock can not be adjusted.
3） If sleep time is no more than 8 hours, when the time arrives, the unit wil shut off.
4） If sleep function is set after setting TIMER OFF function, the unit will execute as the SLEEP
function.
5） If SLEEP function is set, the TIMER function can not be set.
6） If sleep function is set after setting TIMER ON function, the sleep function only can be set
befroe the TIMER ON time arrives.
7） After setting sleep function, press CLOCK button to check the clock; press TEMP button to
display the set temperature, and press again to change the set temperature.
11 Water level inspection and water pump control
1) In COOL (including cooling state of AUTO mode and the compulsory cooling) and DRY mode, as
long as the compressor runs, water pump will work; and once the compressor stops, water pump will
stop 5 minutes later;
2) In standby state of cooling mode, heating mode and fan mode (including auto fan mode), after
water tank is full, the float switch will disconnect, if the controller detects this signal for 2 seconds,
the water pump will begin to work. After the float resets, water pump will continue working and
stops 5 minutes later;
3) If the water-full signal is detected for over 5 minutes, the compressor will stop; water pump will
work for 5 minutes and stop for 5 minutes, then repeat as a cycle, until the float resets, the water
pump will stop 5 minutes later; if water pump has repeated for 4 cycles, the float can not reset,
and the unit will alarm water drainage abnormal. And the water pump will continue the cycle.
12. System protection
12.1 3-minute protection for compressor startup
After the compressor stops, at least 3 minutes later, the compressor can restart up; the compressor
can restart up. Being electrifed for the first time, there is 3-minute delay protection.
12.2 Time shorting function
If the time shorting port is in short circuit, the unit will perform a 1/60 time shorting control.
12.3 High pressure protection
After compressor is running for 3 minutes, the unit will check the pipe pressure, when the pipe
pressure is too high, 30 seconds later, compressor and outdoor fan motor will stop, and then 3
minutes later, the unit will be normal. Within 30 minutes, if the compressor stops and will send
failure because of too high pressure for 3 times.
12.4 Low pressure protection
After compressor is running for 3 minutes, the unit will check the pipe pressure, when the pipe
Commercial Air Conditioner
10.2 Standard sleep function: in heating mode, after
running at SLEEP mode for 1 hour, the set temperature
reduces 2℃, another 1 hour later, the set temperature will
reduce 2 ℃ , and another 3 hours later, the set
temperature rises 1℃; the unit continues running for 3
hours, then the unit will stop.
10.3 Non-standard SLEEP function: the sleep function
Model: AD182ALERA AD362AHERA
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