Haier AC242ACEAA [325/408] Electric control functions

Haier AD282AMERA [325/408] Electric control functions
After compulsory cooling begins for 1 minute, for 3 minutes, the low load protection is cancelled temporarily.
(THLH[3ˈ2ˈ1ˈ0]= 7ćˈ4.6ćˈ2.2ćˈ-0.5ć)
11. High load protection
In heating mode, make high load protection due to the heat exchanger temperature.
heat exchanger temp. frequency when high load protection begins
THHEAT6 74.7
THHEAT5 70.3
THHEAT4 65.1
THHEAT3 62.2
THHEAT2 52.9
THHEAT1 51.6
THHEAT0 47.1
Indication FQY normal C D E
standby D C B A B C D E stop
High load protection
When the heat exchanger temperature is not up to "THHEAT[2]", the temperature will resume the control of
normal temperature area.
12. Temperature cutoff protection
In cooling mode, every time compressor runs for 1 minute after startup, the unit will check the indoor coil
temperature, when Tg>Trˇ5, the unit will shut off for 3 minutes, and then re-start up; if it the temperature cutoff
protection has occurred for 3 times contineously, the unit will stop and alarm.
In heating mode (except for defrosting), every time compressor runs for 1 minute after startup, the unit will check
the indoor coil temperature, when Tg˘Trˉ5, the unit will shut off for 3 minutes, and then re-start up; if it the
temperature cutoff protection has occurred for 3 times contineously, the unit will stop and alarm (in defrosting and
in 2 minutes after defrosting is over, the unit will not measure temperature).
13. EEPROM control
When outdoor being electrified, if parameter of EEPROM is different from the data of check sum, EEPROM will
be abnormal.
Once indoor receives the EEPROM abnormal signal from outdoor, the unit will display EEPROM abnormal.
At this time, control and emergency operation will not be received. Only power off the unit, the failure can be
resumed.
14. Failure record
Temp. point Temp. FQY point FQY
THHEAT3 62.6 FQHHEAT2 70
THHEAT4 65.1 FQHHEAT3 40
THHEAT5 70.3 FQHHEAT4 30
THHEAT6 74.4 Stop
Electric control functions
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