Domestic Air Conditioner
5.2 Main functions and control specification of outdoor unit
Sensor Code Definition: Tai= Indoor Ambient Temperature, Tao=Outdoor Ambient Temperature,
Tc1=Indoor Coil, Td= Air Discharge, Te= Outdoor Coil, Ts=Air Intake
5.2.1 Outdoor Unit Operation Frequency and Control
Compressor Operation Frequency Range
Compressor Operation Frequency Range:
Outdoor Temperature
İ
4 4
ī
18
ı
18
Heating
˄
Hz
˅
20
ī
110 20
ī
90 20
ī
53
Defrosting
˄
Hz
˅
80
Outdoor Temperature
İ
23 23
ī
32
ı
32
Cooling
˄
Hz
˅
20
ī
50 20
ī
70 20
ī
95
Compressor Startup
Regardless of target frequency of indoor unit, each time when compressor is from off to on, it
must maintain 60Hz,90Hz for one minute (Frequency will be immediately decreased under the
condition that outdoor unit air discharge temperature overheating protection is activated or over
current of compressor) then the compressor will operate towards target frequency. This process
does not exist in normal operation of unit.
Heating
When completing compressor startup operation, it will operate as per frequency of indoor unit.
After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.
Cooling & Dehumidification:
When completing compressor startup operation, it will operate as per frequency of indoor unit.
After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.
Compressor Frequency Increase/Decrease Speed
Rapid Frequency Increase/Decrease Speed 1 ----------1Hz/s
Slow Frequency Increase/Decrease Speed 2 -----------1Hz/10s
HSU12/18VHJ(DB)
2
5
Summary of Contents for HSU12VHJ(DB)
Page 3: ...12 VHJ DB 101 101 102 106 ...
Page 18: ...Domestic Air Conditioner PCB 2 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN11 CN10 15 HSU12 18VHJ DB ...
Page 21: ... Domestic Air Conditioner PCB 2 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN11 CN10 18 HSU12 18VHJ DB ...
Page 95: ...Loosen the top panel screws 1 2 Lift the top panel HSU12 18VHJ DB Removal Procedure 92 ...
Page 97: ...9 3 2 Removal of Electrical Box HSU12 18VHJ DB Removal Procedure 94 ...
Page 98: ...9 3 3 Removal of Fan and Fan Motor HSU12 18VHJ DB Removal Procedure 95 ...
Page 99: ...2 Loosen the fixing screws and remove the motor HSU12 18VHJ DB Removal Procedure 96 ...
Page 100: ...9 3 4 Removal of fan motor Bracket and Partition HSU12 18VHJ DB Removal Procedure 97 ...
Page 101: ...and remove the reactor Loosen the screw HSU12 18VHJ DB Removal Procedure 98 ...
Page 104: ... SSHQGL SSHQGL 3LSLQJ LDJUDPV 68 9 101 ...
Page 109: ...10 3 Circuit Diagrams 10 3 1 INDOORUNIT FOR12K Appendix HSU12 18VHJ DB 106 ...