Airwell WNG12, Техническое руководство

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12-1
CONTROL SYSTEM
Service Manual - DUO Series
12. CONTROL SYSTEM
12.1 General
The control and logic system is managed by the indoor PCB controler with regards to all functions
and protections excluding Deicing. The DUO OU7 R410A is equiped with stand -alone internal
deicer integrated on the outdoor PCB (TYPHOON - 4A 6.2).
12.1.1 Deicing opration:
The outdoor coil temp ‘ is detected by 2 OCT sensors (outdoor coil temp’) the deicing proceadure
will be activated if one of the sensors is sensing a temp’ ≤ -6ºC, and will stop when the outdoor coil
will reach to12ºC or max 10 Min. once the deicing protection is activated it will include both units at
the same time. Method of defrosting is by reversing the heat pump cycle to cooling mode, stopping
the outdoor fan and keeping the comp’ runing, the unit will resume to its normal operation after the
deicing proceadure will be deactivated. Min deicing time is 2.5 Min.
12.1.2 Deicing intrval:
At first start up deicing will not be activated for the first 45 Min, and will go to STBY mode after
every defrosting this timer will start a new cyicle.
12.1.3 TYPHOON - 4A 6.2
NOTE :
For further information please refer to the relevant indoor unit service manual
.
OUTDOOR F A N C A P A CITOR
O/F OUTPUT
TO COMPRE SS OR
C A P A CITOR S
O/F REL AY
OCT S EN S OR S
R/ V OUTPUT S
GND CONNECTION S
INTERCONNECTING TERMIN A L S
COMPRE SS OR
OUTPUT S
POWER S UPPL Y
N ~ 2 30 V 50H z