Indoor Unit Functional Concept
ESIE05-03
2–28
Part 2 – Functional Description
3
1
2
4
5
2.2
Thermostat Control
Purpose
Based on the information received from the air return sensor, the thermostat control will decide the
required operation status of the system.
Thermostat control
Cooling mode:
Heating mode:
Cool / heat changeover in automatic mode:
Preventing
thermostat OFF
conditions
The thermostat control prevents the thermostat from turning OFF in the following conditions:
P
For the first 2.5 minutes after operation starts, or
P
Defrosting, or
P
Forced Operating Mode, or
P
Within the first 6 hours after power ON, initial operation for the first 10 minutes (See note)
Note: To protect the compressor, make sure to turn on the power supply 6 hours before starting
operation.
Remark:
The thermostat control will be changed when using field settings for low humidity applications, setting
16(26)-2-03 & 16(26)-2-04.
See "Part 4–Commissioning and Test Run" for details.
Thermostat OFF
–0.5 K
Set point
+1 K
Thermostat ON
Thermostat ON
–1 K
Set point
+0.5 K
Thermostat OFF
Automatic heating
–2 K
Set point
+2 K
Automatic cooling
ESIE05-03.book Page 28 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...