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model.
T e
≤
25 ℃ , the indoor fan motor will turn off.
2) When T e presents rising state and T e
≥
28 ℃ , the indoor fan motor will be in feeble wind
model. T e
＜
28 ℃ , the indoor fan motor will turn off.
Residual heat function:
When the T inter-panel
＞
35 ℃ , indoor fan motor will run in feeble wind model, and when the T
inter- panel
≤
35 ℃ . The indoor fan motor will shut down, and the residual heat function will be
less than 10s.
When the T inter-panel
＜
35 ℃ , the indoor fan motor will shut down immediately.
5.6.2 High temperature protection function:
1) When the air conditioner is in heating model. When either of two indoor unit’s T e
≥
57 ℃ , and
continues for 10s. The out door fan motor will stop. If the T e
≥
64
℃
and continues working for
10s, the compressor will stop. When both of the two indoor unit’s T e
≤
52
℃
.and last for 3 m,
the air conditioner will return to normal operations.
2) This temperature protection function only works when the temperature sensor is work
normal.
5.7 Defrosting operation.
When one of A
、
B or C
、
D is defrosting, if the other one is in heating mode, it will turn to
defrosting mode immediately; Only when the two compressors meet the condition of finishing
defrost can they get back to heating
mode.
5.7.1 Entry condition of outdoor temperature sensor:
In heating system, T c(condenser)
≤
-6
℃
, for 2 m, compressor works for more than 50 m. The
defrost interval is more than 50 m; Compressor continuous operates for 5 m. If outdoor unit
temperature sensor is damaged, every 50 minutes of operation needs a defrosting of 10
minutes. (If power is cut off or the machine is turned off by remote controller. Work time of the
compressor will resume time)
5.7.2 Requirement of defrosting (sleeping light twinkle once a second).
When begin defrosting, compressor and indoor fan motor stop running. Outdoor fan motor
and four-way valve continues operation.
After 30s later, four-way valve and outdoor fan both stops running. After another 15 seconds,
the compressor starts to work with defrosting mode.
When defrosting is finished, the compressor stops running. After 20 minutes, the four-way
valve starts operating.
After another 20 seconds until all compressors exit defrosting and get into heating mode.
Indoor fan works as cold air protection function.
Indoor fan works as cold air protection
function.