Mitsubishi PUHY-P250YJM-A Manuals

Mitsubishi PUHY-P250YJM-A Manuals

Manuals and User Guides for Mitsubishi PUHY-P250YJM-A. We have 1 Mitsubishi PUHY-P250YJM-A manual available for free PDF download: Service Handbook

Mitsubishi PUHY-P250YJM-A Service Handbook

Mitsubishi PUHY-P250YJM-A Service Handbook (267 pages)

Brand: Mitsubishi | Category: Air Conditioner | Size: 20.46 MB

Table of Contents

Safety Precautions
2
Before Installing the Unit
5
Electrical Work
6
Table of Contents
8
Read before Servicing
10
Read before Servicing
12
I Read before Servicing
12
Necessary Tools and Materials
13
Piping Materials
14
Storage of Piping
16
Pipe Processing
16
Brazing
17
Air Tightness Test
18
Vacuum Drying (Evacuation)
19
Refrigerant Charging
20
Remedies to be Taken in Case of a Refrigerant Leak
20
Characteristics of the Conventional and the New Refrigerants
21
Notes on Refrigerating Machine Oil
22
Restrictions

24
Outdoor Unit Components

44
- Outdoor Unit Components and Refrigerant Circuit
  46
- Control Box of the Outdoor Unit
  48
- Outdoor Unit Circuit Board
  49
  - Inv Board
    51
  - Fan Board
    52
  - Noise Filter
    53
Indoor Unit Components

54
Electrical Wiring Diagram

68
- Electrical Wiring Diagram of the Outdoor Unit
  70
- Electrical Wiring Diagram of the Indoor Unit
  71
Refrigerant Circuit

74
- Refrigerant Circuit Diagram
  76
- Principal Parts and Functions
  79
Control

84
- Functions and Factory Settings of the Dipswitches
  86
- Controlling the Outdoor Unit
  91
  - Defrost Operation Control
    94
  - Refrigerant Recovery Control
    95
- Controlling the Indoor Unit
  103
  - Actuator Control
    104
  - Emergency Operation Mode
    104
- Operation Flow Chart
  107
Test Run Mode

112
Troubleshooting

130
- Error Code Lists
  132
- Responding to Error Display on the Remote Controller
  135
  - Error Code
    157
  - System Controller
    181
- Investigation of Transmission Wave Shape/Noise
  187
- Troubleshooting Principal Parts
  190
- Indoor Unit
  207
- Refrigerant Leak
  209
- Compressor Replacement Instructions
  210
- Troubleshooting Using the Outdoor Unit LED Error Display
  212
- Replacement Instructions for Motor and Bearing
  213
- Maintenance/Inspection Schedule
  219
LED Monitor Display on the Outdoor Unit Board

222
- How to Read the LED on the Service Monitor
  224

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