Daikin EUWAB10KBZW1, Service Manual

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Functional Description ESIE11-02
2–22 Part 2 – Functional Description
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Defrost cycle timers The table below describes the timers that are important in the defrost cycle.
Timer Description Startvalue
TimdefrMin The minimum time that a defrost cycle must be active.
(The timer only starts to count when the compressor is on.) 10 s
TimDefrMax The maximum time that a defrost can be active.
(The timer only starts to count when the compressor is on.) 10 min
TimMaskC1 The minimum accumulated time interval of compressor ON between stop of a
defrost cycle of circuit 1 and the start of the next defrost cycle of circuit 1.
■
Reset of timer: After power ON or Defrost C1 finished or Mode
≠
Heating
(=> Remark: During the defrost cycle Mode ≠ Heating is ignored, because the
Mode
≠
Heating cannot be detected by the I/O PCB)
(=> Remark: no reset if unit is switched off)
■
Continue of timer: Compressor on by thermostat (DI3M1Cdetect=closed)
■
Stop of timer: Compressor switch off by thermostat (DI3M1Cdetect=open)
■
End of timer (goes to 0): Now defrost is possible
20 min
accumulated
TimMaskC2 The minimum accumulated time interval of compressor ON between stop of a
defrost cycle of circuit 2 and the start of the next defrost cycle of circuit 2.
■
Reset of timer: After power ON or Defrost C2 finished or Mode ≠ Heating
(=> Remark: During the defrost cycle Mode
≠
Heating is ignored, because the
Mode ≠ Heating cannot be detected by the I/O PCB)
(=> Remark: no reset if unit is switched off)
■
Continue of timer: Compressor on by thermostat (DI4M2Cdetect=closed)
■
Stop of timer: Compressor switch off by thermostat (DI4M2Cdetect=open)
■
End of timer (goes to 0): Now defrost is possible
20 min
accumulated
TimComprStop The time interval that is used if the compressors stops, at the start and stop of the
defrost function. 20 s
TimComprStart The minimum time interval that is used between the start-up of compressor 1 and
compressor 2. 5 s