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Mitsubishi
Air Conditioner
PUHZ-SHW112YAA
Page 71
Mitsubishi PUHZ-SHW112YAA - Page 71
71 pages
Manual
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70
Table of Contents
Main Page
Table of Contents
1
Model Name
1
Service Manual
1
Indoor Unit Service Manual
2
Reference Manual
2
Cautions Related to New Refrigerant
3
Safety Precaution
3
Additional Refrigerant Charge
4
Cautions for Service
4
Service Tools
4
Precautions for Salt Proof Type "-Bs" Model
5
Precautions When Reusing Existing R22 Refrigerant Pipes
5
Cautions for Refrigerant Piping Work
6
Flare Cutting Dimensions
6
Flare Nut Dimensions
6
Thickness of Pipes
6
Specifications
7
Compressor Technical Data
9
Data
9
Refilling Refrigerant Charge
9
Noise Criterion Curves
10
Outlines and Dimensions
11
Field Electrical Wiring
13
Wiring Specifications
13
Refrigerant System Diagram
14
Refrigerant Collecting (Pump Down)
15
Troubleshooting
16
Connector Open (SW100/SHW80/ 1
17
Self-Diagnosis Action Table
17
Troubleshooting of Problems
26
How to Check the Parts
32
Check Method of DC Fan Motor
33
High Pressure Sensor
33
How to Check the Components
33
High Temperature Thermistor
34
Low Temperature Thermistors
34
Medium Temperature Thermistor
34
Thermistor Feature Chart
34
Linear Expansion Valve
35
Linear Expansion Valve Operation
35
Output Pulse Signal and the Valve Operation
35
How to Attach and Detach the Coil of Linear Expansion Valve
36
How to Attach the Coil
36
How to Detach the Coil
36
Outdoor Controller Circuit Board
37
Test Point Diagram
37
Outdoor Noise Filter Circuit Board
38
Outdoor Power Circuit Board
39
Outdoor Converter Circuit Board
40
Function of Switches
41
Function of Connector
42
Abnormal Condition
43
Display Function of Inspection for Outdoor Unit
43
Miswiring of Indoor/Outdoor Unit 1
43
Normal Condition
43
Connecting Wire (Converse Wiring or Disconnection)
45
Digital Indicator LED1 Working Details
45
Outdoor Unit Operation Monitor Function
45
Monitoring the Operation Data by the Remote Controller
54
Request Code List
54
Detail Contents in Request Code
57
Actuator Output State
58
Error Content
58
Outdoor Unit -– Capacity Setting Display
59
Outdoor Unit – Setting Information
59
Disassembly Procedure
60
Removing the Electrical Parts Box
60
Removing the Fan Motor (MF1)
60
Removing the Service Panel and Top Panel
60
Disassembling the Electrical Parts Box (V Model Only)
61
Disassembling the Electrical Parts Box (y Model Only)
61
Removing the Thermistor
62
Removing the Compressor (MC)
70
Removing the Receiver
70
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