Electra WNG 50 DCI Service Manual page 73

OCT – Outdoor Coil Temperature
OAT – Outdoor Air Temperature
TLD – Time from Last Deicing
DI – Deicing Interval (Time Interval between Two Deicing)
DST – Deicing static threshold (Temperature)
Deicing interval time when compressor is first started in heat mode, is 10 minutes if OCT < -2,
and is 40 minutes in other cases.
Deicing interval time is changed (increased/ decreased in 10 minutes steps) as a function of
deicing time. If deicing time is shorter then former deicing time, the deicing interval time will be
increased. If deicing time is longer then former deicing time, the deicing interval time will be
decreased.
12.5.9.2 Deicing Protection Procedure
OCT
12
0
Threshold
ON
COMP
HEAT
RV
COOL
ON
OFAN
OFF
EEVDeicerOpen
EEV
Any
T1 = T2 = 36 seconds, T3 = 6 seconds
12.5.10 Condensate Water over Flow Protection
Each of the pins P1, P2, P3 can have two options:
1 – When it is shorted with P4
0 – When it is not shorted to P4
Service Manual - WNG 50_60_80 DCI
T1
max. 12 minutes
DT
T3
Revision Y05-02
CONTENT
T2
T3
CONTROL SYSTEM
T1
12-17