AUKS AFC-1000CF/4, Technical Manual, Page: 52 / 60

Service Manual
52
resistance approximately equal), resistance of winding should be infinite.
5. DIP setting and failure code
5.1 Dip setting of the control panel
The DIP switch of the controller has a setting condition that varies with different models. The DIP switch
was already adjusted in the factory of the company, but the service personnel of the user shall take care
during the service process.
Function introduction of the DIP functions of the unit
DIP switch Function ON OFF Default Remark
3 DIP-1 Coupling Coupled switch No OFF
3 DIP-2
Air oscillation
mode
Mode E Mode F
ON
Mode H Mode G
3 DIP-3 Valve selection Single valve
Cold and heat
water valves
ON
Note: Mode E is applicable to model C7 ceiling unit(MB12 panel), mode F applicable to model 120 ceiling
unit(MB06 panel), model G applicable to ceiling floor unit, mode H applicable to model C7 ceiling
unit(MB13 panel).
DIP switch Function ON OFF Default Remark
4 DIP-1 - - - -
4 DIP-2
Water level
switch protection
Protection
shielded
Protection
normal
ON
4 DIP-3
Power fail
memory
Yes No OFF
4 DIP-4
Heating
selection
Single electric
heating
Water
valve+electric
heating
OFF
When water
valve+electric heating
are operating, the
electric heating will be
automatically activated
The system presume that under single valve, cooling, and heating mode, the water valve outputs via
cooling valve, so in the specifications: If a single valve model is selected, the heating and the heating
valve action under AUTO mode are achieved through the cooling valve; If a cold/hot water valve model,
the heating and the heating valve action under AUTO mode are achieved through the heating valve;
Electric heating can only be used on units without coupled switches.
5.2 Failure code display
When the air conditioner is faulty, the timing light of the controller’s light panel will display relevant trouble
codes according to various troubles.
Failure cause Display method 1 Display method 2
Display
priority
Phenomenon
Communication failure Timing light flashes 5 times/8s E5 1 Stop
Drainage system failure Timing light flashes 4 times/8s E4 2 Stop
Return temperature sensor failure Timing light flashes once/8s E1 3 Stop