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HSU12
HG(DB)-SM
Wiring Diagrams
25
Domestic Air Conditioner
5.2.5.2
˖
TC high temperature-preventing control of the indoor heating unit
˖
Tpg_indoor is the highest value of the effective indoor unit (start it and it is in accord with the running
state).
The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the
temperature is higher than 55
ć
, decrease the rotate speed of the compressor and do the high
temperature-preventing protection of the indoor heat exchanger; if the temperature of the indoor heat
exchanger is lower than 47
ć
, recover to the normal control.
TC The compressor stops Fgh_t1 65
ć
Fgh_t1
ˉ
2
Fgh_t2
ˉ
2 N Decreasing the frequency rapidly Fgh_t2 59
ć
P Decreasing the frequency slowly Fgh_t3 55
ć
Fgh_t3
ˉ
2
Fgh_t4—2 Q Prohibiting increasing the frequency Fgh_t4 51
ć
R Increasing slowly Fgh_t5 47
ć
Fgh_t5—2
Normal
N
˖
Decreasing at the speed of 1HZ/1 second
P
˖
Decreasing at the speed of 1Hz/10 seconds
Q
˖
Continue to keep the last-time instruction cycle
R
˖
Increasing at the speed of 1Hz/10seconds
Remarks: the outdoor unit
5.2.5.3 The control of preventing the overcurrent of the compressor
˖
ƽ
During the starting process of the compressor, if the curren of the compressor is greater than 17A
for 3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3
times in 20 minutes, stop the compressor and alarm, and confirm the malfunction. Then continue to
run it only after the the power is off.
ƽ
During the starting process of the compressor, if the AC current is greater than 12A, the frequency
of the compressor decreases at the speed of 1HZ/second.
ƽ
During the starting process of the compressor, if the AC current is greater than 10A, the frequency
of the compressor decreases at the speed of 0.1HZ/second.
ƽ
During the starting process of the compressor, if the AC current is greater than 9A, the frequency of
the compressor increases at the prohibited speed.
ƽ
During the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor increases at the speed of no faster than 0.1HZ/second.
Summary of Contents for HSU12VHG-B
Page 43: ...Domestic Air Conditioner HSU12 HG DB SM System Configuration 40 ...
Page 71: ...68 Domestic air conditioner Removal of procedure 9 1 HSU12 HG DB SM ...
Page 74: ...71 Domestic air conditioner Removal of procedure three two HOOKS HSU12 HG DB SM ...
Page 76: ...73 Domestic Air Conditioner Removal of procedure 9 4 HSU12 HG DB SM ...
Page 77: ...74 Removal of procedure 9 5 HSU12 HG DB SM Domestic Air Conditioner ...
Page 78: ...75 Domestic air conditioner Removal of procedure 9 6 HSU12 HG DB SM ...
Page 79: ...76 Domestic air conditioner Removal of procedure 9 7 HSU12 HG DB SM ...
Page 80: ...Domestic air conditioner 77 Removal of procedure HSU12 HG DB SM ...
Page 81: ...Domestic air conditioner Removal of procedure 78 HSU12 HG DB SM ...
Page 82: ...79 Domestic air conditioner Removal of procedure HSU12 HG DB SM ...
Page 83: ...80 Removal Procedure 9 HSU12 HG DB SM ...
Page 84: ...81 Removal Procedure HSU12 HG DB SM ...
Page 85: ...Removal Procedure 82 4 HSU12 HG DB SM ...
Page 86: ...83 Removal Procedure HSU12 HG DB SM 9 10 ...
Page 87: ...84 Removal Procedure 11 HSU12 HG DB SM ...
Page 88: ...85 Removal Procedure 12 HSU12 HG DB SM ...
Page 89: ...86 Removal Procedure HSU12 HG DB SM ...
Page 90: ...87 Removal Procedure HSU12 HG DB SM 9 13 ...