Airwell AWSI YIFA060-H13, Руководство по обслуживанию

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24 | S e r v i c e M a n u a l
CONTROL SYSTEM
After the defrosting is finished, outdoor fan will start, 10 s later the compressor will stop, and 15 s later four ways valve will open, 5
more seconds later the compressor will start, the unit returns to normal heating operation, and indoor fan runs as anti-cold wind
mode
c) Defrosting entering temperature and heating internal time will auto-adjusted by outdoor defrosting time
d) Defrosting time sequence drawing

Intelligent defrosting function(only in the case of outdoor coil is damaged this function is carried out)
Entering conditions
On the condition of running intelligent defrosting operation, one of following 7 conditions is satisfied (As
for secondary condition
in upper condition, it is only valid that all secondary condition be satisfied at the same time)
a) Condition No.1
①
The outdoor fan enters into over-load protection and stops running.
②
Outdoor fan stops running then restarts and keeps running over 10 min
③
The compressor accumulating running time ≥45min
④ The compressor continuous running time ≥20min
⑤ TE ≤ 48 ℃
。
b) Condition No.2
①
Enter into heating mode 5 min later or finish defrosting 5 min later, catch the max difference value between TE and TA
If
TE≥38 ℃
，
when the difference between TE and TA decrease by 5
℃ or more and lasting time ≥3min
If the difference between TE and TA decrease by 3
℃
or more and lasting time ≥3min
②
The compressor continuous running time ≥5min
③
The compressor accumulating running
time ≥45min
④ TE ≤ 48 ℃
；
Note: If there is wind modification, and when indoor fan wind speed descends 1 grade, temperature modification