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General Functionality
SiBE28-804
34
Functional Description
Functions of the
thermistors
Thermistor
Location
Wiring
symbol
Mode
Function
1
Indoor
heat
exchanger
R2T
Cooling
Compressor frequency control (target Te)
Inverter current protection control
Freeze-up control
Heating
Compressor frequency control (target Tc)
Inverter current protection control
Hot start control
Peak cut-off
2
Indoor air
return
R1T
Cooling
Thermostat control
PMV control
General frequency control
Heating
Thermostat control
PMV control
General frequency control
3
Outdoor
heat
exchanger
R2T
Cooling
Inverter current protection control
Heating
Inverter current protection control
Defrost control
4
Outdoor
ambient
R1T
Cooling
Outdoor fan speed control
PMV control
Pressure difference control
Overall current protection control
Preheating operation control (RZQ71)
Heating
Defrost control
PMV control
Forced thermostat OFF
Overall current protection control
Preheating operation control (RZQ71)
5
Discharge
pipe
R3T
Cooling
Discharge superheat control
Expansion valve control
Crankcase heater / preheating control
Heating
Expansion valve control
Crankcase heater / preheating control
6
Suction
pipe
R4T
Cooling
Expansion valve control (SH control)
Heating
Expansion valve control (SH control)
Suction pipe superheat protection control
7
Inverter
power
module
R5T
Cooling
Outdoor fan speed control
Inverter fin temperature control
Pressure difference control
Heating
Inverter fin temperature control
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 ...