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ESIE05-03
Indoor Unit Functional Concept
Part 2 – Functional Description
2–35
3
2
4
5
1
2.8
Indoor Unit Fan Control
Outline
During compressor start and stop control, the indoor fan will receive instruction from the outdoor unit
in order to protect the compressor from receiving liquid and to assure a smooth compressor start up:
P
Indoor fan control before compressor stop
P
Indoor fan control during compressor stop
P
Indoor fan control before compressor startup
P
Indoor fan control at compressor startup
Before compressor
stop
After thermostat off or remote-controller signal off has been sent from the outdoor unit to the indoor
unit, the compressor will keep on running for a period of time in order to execute the "residual pump
down operation". During this pump down operation, the indoor fan will keep on operating.
Purpose:
P
Cooling: Minimize the remaining refrigerant amount in indoor unit heat exchanger
P
Heating: Lower the high pressure by avoiding high temperature build up around the indoor unit heat
exchanger.
During compressor
stop
Before compressor
startup
Indoor fan tap
Indoor cooling / Automatic
cooling
Thermostat OFF
L
Remote controller OFF
LL
Indoor heating / Automatic
heating
Thermostat OFF
LL
Remote controller OFF
LL
Indoor drying
Thermostat OFF
LL
Remote conntrolle OFF
LL
Indoor fan tap
Indoor cooling / Automatic
cooling
Thermostat OFF
Remote controller setting
Remote controller OFF
OFF
Indoor heating / Automatic
heating
Thermostat OFF
LL
Remote controller OFF
OFF
Indoor drying
Thermostat OFF
OFF
Remote controller OFF
OFF
Indoor fan tap
Indoor cooling / Automatic cooling
Remote controller setting
Indoor heating / Automatic heating
OFF
Indoor drying
L
ESIE05-03.book Page 35 Wednesday, April 6, 2005 4:09 PM
Summary of Contents for RZQ100B7W1B
Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Page 2: ......
Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Page 58: ...ESIE05 03 1 36 Part 1 System Outline...
Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...