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ESIE05-03
Indoor Unit Functional Concept
Part 2 – Functional Description
2–29
3
2
4
5
1
2.3
Drain Pump Control
Purpose
Control the water draining from the drain pan.
Starting conditions
The drain pump control starts the drain pump motor when one of the following conditions is fulfilled:
P
Cooling operation is activated
P
Abnormal high water level is detected in the drain pan
Normal control
In normal control, the drain pump is turned ON at compressor starting and turned OFF 5 minutes after
the compressor has stopped (residual operation).
Float switch
activation during
thermostat OFF
When an abnormal drain level is detected in the drain pan, the float switch opens:
1
The thermostat stays forced OFF.
2
The drain pump starts to operate for minimum 10 minutes (even if abnormality is solved within the
10 minutes).
3
If the float switch closes again within 80 seconds, cooling operation can restart within the 10
minutes recovery period.
Drain pump
ON
OFF
Compressor
ON
OFF
5 min
Water level
abnormality
Abnormal
Normal
5 min
5 min
1 min 20
5 s
Normal
Float switch
Compressor
Drain pump
Error processing
OFF
OFF
ON
ON
ESIE05-03.book Page 29 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...