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ESIE05-03
General Functionality
Part 2 – Functional Description
2–17
3
2
4
5
1
1.12
Pump Down Residual Operation
Outline
The unit will conduct a pump down residual operation after each compressor stop command.
Purpose of this function is to collect the refrigerant in the liquid receiver and outdoor heat exchanger
in order to prevent liquid refrigerant from remaining in the indoor heat exchanger.
Parameters
Graph
Ending condition
* Low pressure value is calculated in case of RZQ100~140B.
RZQ71B
RZQ100~140B
Compressor
38 Hz
52 HZ
Expansion valve
65 to 0 pulses
(RZQ71: after 20 seconds, RZQ100~140: after 10 seconds)
RZQ71
RZQ100~140
OR
30 seconds have elapsed since start of
residual operation
10 seconds have elapsed since start of
residual operation
LP < 2 bar (in cooling*)
OR
LP < 1 bar (in heating*)
---
LPS is activated
ESIE05-03.book Page 17 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...