Premium GPAC12039, Service Manual

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speed. When compressor is off. delay 30S to open indoor fan. with a mute wind speed. at the
same time malfunctions shown.
9.4.3 When the deviation of T c signal of outdoor coil temperature sensor is detected.
strobolamp flickers. and malfunction is indicated. If the remote manipulator signal of heating is
received. press heating for 50min.defrosting for 10min.to cycle heating. The rest mode
function as usual.
9.5 Indoor PG .motor fault handling
After the indoor motor is put on voltage, if the feedback signal is not received within 12
seconds, then indoor fan will automatically function as low wind.
9.6 Communication malfunction
If outdoor motor doesn’t receive the signal from indoor unit PCB, Correspondent outdoor unit
stops. If indoor unit PCB doesn’t receive the signal from outdoor unit, it will stop. Strobolamp
flickers. Display corresponding malfunction. Once a communication malfunction appears, It
cannot be automatically recovered. After the trouble is solved, it can only be work by remote
controller or pressing the starting up button.
10. Mode Control
The function modes of outdoor unit are only three: non-heat
（
cooling. dehumidify
）
. heating
（
include defrost
）
. standby
（
closedown and ventilation mode
）
. A. B. and C. D are
independent and unaffected to each other. The function mode of the outdoor unit is decided
by the priority of the four modes. Once outdoor unit function mode is decided, the other
compressor which doesn't fit the function mode would stop
For example.
：
One of A. B. or C D firstly cooling
（
dehumidify
）
.then outdoor unit mode will be
cooling. if the other machine starts with heating. then heating will not function. Only after
refrigeration
（
dehumidify) indoor unit turn to standby or heating can outdoor unit turn to
heating mode.
11. Digital Tube Display Function
11.1 In the normal condition of the controller. the digital tube display indicator shows room
temperature when the machine is on. If the designed temperature is changed. then the
designed temperature is shown. and flickers at a rate of once per second. then return to room
temperature after 5 seconds.
11.2 fault indication function
（
nixie display indicator
） ：
Failure cause Display mode Display priority
Indoor-outdoor communication malfunction Show "E5" 1
PG motor feedback of fault Show "E4" 2
T ambient sensor feedback fault Show " E1" 3
T evaporator senor feedback fault Show " E3" 4
T condenser sensor feedback fault Show " E2" 5
12. Adjustment Function of Air blade
Chart 3 shows the step motor swinging angle of E series conditioners of 9000Btu
and12000Btu. the angle between fully open position and complete shutdown hereafter is
called omnirange angle. The omnirange angle of E mold is 150°. In the operational process of
repeating motor. the operational angle is always memorized. repeating motor follows 4 phase
8 beating type of drive.
1. Reset action of first electrify. step motor opens an omnirange angle to its opening direction.