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Functional concept
ESIE05-04
2–4
Part 2 – Functional Description
3
1
2
4
5
1.2
Functions of Thermistors
Locating the
thermistors
Remark
Sensor R3T on indoor coil of FCQ35~60B7V1, FFQ35~60BV1, FBQ35~60B7V1 & FHQ35~60BUV1
is not used when the indoor units are connected to sky-air outdoor units (RR, RQ, RZQ).
Functions of the
thermistors
R1T
R2T
R3T
Ther-
mistor
Location
Wiring
symbol
Mode
Function
1
Indoor air
return
R1T
Cooling
Q
Thermostat control
Q
PMV control
Q
General frequency control
Heating
Q
Thermostat control
Q
PMV control
Q
General frequency control
2
Indoor
heat
exchanger
R2T
Cooling
Q
Compressor frequency control (target Te)
Q
Inverter current protection control
Q
Freeze-up control
Heating
Q
Compressor frequency control (target Tc)
Q
Inverter current protection control
Q
Hot start control
Q
Peak cut-off
3
Indoor
heat
exchanger
R3T
Heating
Q
Peak cut-off
Summary of Contents for FHQ100BUV3B
Page 1: ...Service Manual ESIE05 04 R 410A Sky Air Indoor...
Page 2: ......
Page 20: ...ESIE05 04 1 2 Part 1 System Outline 3 1 1 5...
Page 62: ...General Outline ESIE05 04 1 44 Part 1 System Outline 3 1 1 4 5...
Page 78: ...ESIE05 04 1 60 Part 1 System Outline...
Page 112: ...Wiring Diagrams ESIE05 04 1 94 Part 1 System Outline 3 1 1 4 5...
Page 140: ...ESIE05 04 2 2 Part 2 Functional Description 3 1 2 5...
Page 164: ...ESIE05 04 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 206: ...Error Codes ESIE05 04 3 44 Part 3 Troubleshooting 3 1 3 4 5...
Page 224: ...Additional Checks for Troubleshooting ESIE05 04 3 62 Part 3 Troubleshooting 3 1 3 4 5...
Page 226: ...ESIE05 04 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 252: ...ESIE05 04 5 2 Part 5 Disassembly and Maintenance 3 1 5...
Page 384: ...Disassembly and Maintenance ESIE05 04 5 134 Part 5 Disassembly and Maintenance 3 1 5 5...
Page 390: ...ESIE05 04 vi Index 3 1 4 5 W Wiring diagrams Indoor units k 1 61...