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SiBE28-804
ii
Table of Contents
1.10 4-way Valve Control ...............................................................................45
1.11 Pump Down Operation ...........................................................................46
1.12 Defrost Operation ...................................................................................47
1.13 Freeze Prevention Function ...................................................................49
1.14 PMV Control ...........................................................................................50
1.15 Preheating Operation Control.................................................................51
1.16 Crankcase Heater Control......................................................................52
2. Indoor Unit Functional Concept.............................................................53
Drain Pump Control................................................................................54
Condensation Avoidance Control...........................................................55
Draft Avoidance Control 1 ......................................................................56
Draft Avoidance Control 2 ......................................................................57
Fan and Flap Operation .........................................................................58
Indoor Unit Fan Control ..........................................................................59
3. Outdoor Unit Functional Concept..........................................................61
Function Outline in Cooling Mode ..........................................................61
Function Outline in Heating Mode ..........................................................62
4. Frequency Regulating Functions ..........................................................63
Starting Frequency Control ....................................................................63
General Frequency Control ....................................................................65
Low Pressure Protection Control............................................................67
High Pressure Protection Control...........................................................69
Discharge Pipe Temperature Control.....................................................70
Suction Pipe Superheat Protection Control (Heating Mode) ..................71
Inverter Current Protection Control ........................................................72
Protection Control by Overall Current ....................................................73
4.10 Inverter Cooling Fin Temperature Control..............................................74
4.11 Pressure Difference Control ...................................................................75
4.12 Oil Recovery Operation ..........................................................................77
5. Expansion Valve Regulating Functions.................................................78
Expansion Valve Control at Startup .......................................................78
General Expansion Valve Control ..........................................................79
Discharge Pipe Temperature Protection Control....................................80
6. Outdoor Unit Fan Speed Control...........................................................81
Outdoor Unit Fan Speed Control............................................................81
Part 5 Test Operation ................................................................. 83
Setting the Wireless Remote Controller .................................................85
Overview of the Field Settings on the Indoor Units ................................92
Overview of the Factory Settings on the Indoor Units ............................93
MAIN/SUB Setting when Using Two Remote Controllers ......................94
Setting the Centralized Group No. .........................................................95
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...