Seabreeze SHE9H4ZIGX - H5: IPM Protection

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11.4 E3: Low Pressure Protection

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Table of Contents2
Precaution6
Safety Precaution6
Warning6
Caution7
Operational7
Model Names and Definitions8
Model Names and Definition8
Types of Indoor Units9
Dimensions10
Indoor Unit10
Wall Mounted10
Console10
Cassette11
Floor/Ceiling12
Ducted12
Outdoor Unit13
Dual Port13
Triple / Quad Port14
Five Port15
Refrigeration System Diagram16
Key Components18
Compressor18
Electronic Expansion Valve18
Pressure Switch18
Wiring Diagram19
Indoor Units19
Wall Mounted19
Console21
Cassette21
Floor/Ceiling22
Ducted23
Outdoor Units24
Dual Port24
Triple / Quad Port25
Five Port26
System Configuration28
System Structure28
Configuration Options28
Dual Port Options28
Quad Port Options29
Five Port Options30
Installation31
Placing the Indoor Unit31
Wall Mounted31
Console32
Cassette32
Floor/Ceiling33
Ducted33
Placing the Outdoor Unit34
Dual/Triple/Quad Port34
Five Port34
Maximum Line Length and Height35
Tubing Connection Size36
Indoor Unit36
Outdoor Unit36
Refrigerant Tubing37
Torque Table for Flare Nuts37
Bundling the Lines37
Electrical Connection38
Dual/Triple/Quad Port38
Five Port39
Evacuating the System40
Start-Up Testing41
Preparation41
Operational Test41
Other Operations41
Functions and Protection Features42
Functions42
COOL" Mode42
DRY" Mode42
FAN" Mode42
HEAT" Mode43
Protection Features44
Mode Conflict ("E7")44
Overload Protection ("E8")44
Compressor Overload Protection ("H3")44
Communication Malfunction ("E6")44
Intelligent Power Module (IPM) Protection ("H5")44
Compressor Overpressure ("E1")44
Compressor Phase Protection ("Ld")44
Error Codes46
Error Codes on Indoor Unit Panel46
Flash Codes on the PC Board of Outdoor Unit48
Dual/Triple/Quad Ports48
Five Ports52
Troubleshooting54
C5: Jumper Failure56
E1: High Pressure Protection57
E2: Anti-Freezing Protection58
E3: Low Pressure Protection59
E4: Exhaust Protection60
E5: Over-Current Protection60
E6: Communication Malfunction61
E8: Overload Protection63
E9: Condensate Water Full in Indoor Unit63
F1/F2/F3/F4/F5: Temperature Sensor Failure64
F1/F3: Ambient Sensor for Indoor and Outdoor64
F2/F4: Tube Sensor for Indoor and Outdoor65
F5: Exhaust Sensor Failure65
H3: Compressor Overload Protection66
H5: IPM Protection67
H6: Indoor Fan Motor Failure68
H7: Compressor Desynchronizing69
HC: PFC Protection70
Lc: Startup Failure71
PU: Capacitor Charging Circuit Error72
U8: Indoor Fan Motor Zero-Cross Detecting Error73
Error Code Label on the Outdoor Units74
Disassembly Procedure76
Outdoor Units76
Dual Port (SMZ18H46ZOGX)76
Triple/Quad Port (SMZ24H46ZOGX/SMZ30H46ZOGX)84
Five Port (SMZ42H46ZOGX)94
Indoor Units106
Wall Mounted106
Console110
Cassette114
Floor/Ceiling120
Ducted124
Specifications126
Indoor Units126
Wall Mounted a126
Wall Mounted B127
Console128
Cassette129
Floor/Ceiling130
Ducted131
Outdoor Units132
Dual Port132
Triple Port133
Quad Port134
Five Port135
Appendix136
Appendix I: Resistance of Ambient Temperature Sensor (15K) for Indoor/Outdoor Units (F1,F3)136
Appendix II: Resistance of Tube Temperature Sensor (20K) for Indoor/Outdoor Units (F2,F4)137
Appendix III: Resistance of Exhaust Temperature Sensor (50K) for Outdoor Units (F5)138
Appendix IV: Pressure on Service Port139

Seabreeze SHE9H4ZIGX - H5: IPM Protection

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