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ESIE05-03
Additional Checks for Troubleshooting
Part 3 – Troubleshooting
3–115
3
3
4
5
1
5.9.5
Outdoor unit: Check Low Pressure Sensor
Measure the voltage (DC) between pins 2 and 3 of the connector.
(Blue)
Low pressure sensor
Red
Black
White
+5V
Outdoor unit PC board
Microcomputer
A/D input
Measure voltage (DC) here.
n
For RZQ71 models
(S2680)
(V3053)
P
H
, P
L
(Kg/cm²)
MPa
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.5
1.5
2.5
-0.5
-0.5
0
1
2
3.5
3
4
Vdc
51.0
45.9
40.8
35.7
30.6
25.5
20.4
15.3
10.2
5.1
-5.1
0
0
Detected Pressure
Output voltage (V
L
)
Low Pressure (P
L
)
P
L
= 0.57V-0.28
P
L
: Low pressure (MPa)
V: Voltage (V)
P
L
= Detected Presuure (Low side) MPa
V
L
: Output voltage (Low side) Vdc
ESIE05-03.book Page 115 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...