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-1℃.when indoor fan wind speed climbs 1 grade, temperature modification +1℃
c) Condition No.3
①The compressor accumulating running time ≥3h
②The continuous compressor running time ≥5min
③The min. difference between TE and TA ＜16℃
d) Condition No.4
①The min. difference between TE and TA ＜16℃ continuously last for 5 min
②The compressor accumulating running time ≥45 min
③The compressor continuous running time ≥20min
If the condition is satisfied unit will enter into defrosting, current TE will be recorded before defrosting. When the defrosting is
over, and the compressor continuously runs for 10 min, then compare current TE
with TE before defrosting, if the latter doesn't high than former by 3℃ or more, next time unit will not
enter into defrosting at this condition, until mode switch, turn off then restart to heating or go through a defrosting yet.
e)
Condition No.5
Begin to calculate time once air conditioner enters into over-heating protection, enters into compulsory defrosting after 2 h
later.
f)
Condition No.6
①5 min later after enters into heating mode for the first time, catching max value of TE, if TE ＜38℃
②The compressor continuous running time ≥5min
③The compressor accumulating running time ≥45 min
g) Condition No.7
①At heating mode and the compressor accumulating running time is over 2h.
②Within the 2 h never carry out defrosting
③The compressor continuous running time ≥5min, catching max value of TE, if TE ＜30 and lasting
time ≥3min.
CONTROL SYSTEM
25 | S e r v i c e M a n u a l
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