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PQHY-P120ZLMU-A
Mitsubishi Electric PQHY-P120ZLMU-A Manuals
Manuals and User Guides for Mitsubishi Electric PQHY-P120ZLMU-A. We have
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Mitsubishi Electric PQHY-P120ZLMU-A manual available for free PDF download: Service Handbook
Mitsubishi Electric PQHY-P120ZLMU-A Service Handbook (420 pages)
2016
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 8.34 MB
Table of Contents
Table of Contents
8
Read before Servicing
12
I Read before Servicing
12
Necessary Tools and Materials
13
Piping Materials
14
Storage of Piping
15
Pipe Processing
15
Brazing
16
Air Tightness Test
17
Vacuum Drying (Evacuation)
18
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
Precautions for Servicing
23
Restrictions
24
System Configuration
26
Types and Maximum Allowable Length of Cables
28
Switch Settings and Address Settings
30
Sample System Connection
36
An Example of a System to Which an MA Remote Controller Is Connected
37
An Example of a System to Which an ME Remote Controller Is Connected
59
An Example of a System to Which both MA Remote Controller and ME Remote Controller Are Connected
63
Restrictions on Pipe Length
68
Heat Source Unit Components
84
Heat Source Unit Components and Refrigerant Circuit
86
Control Box of the Heat Source Unit
92
Heat Source Unit Circuit Board
94
BC Controller Components
99
Control Box of the BC Controller
102
BC Controller Circuit Board
103
4 Remote Controller
106
Functions and Specifications of MA and ME Remote Controllers
108
Group Settings and Interlock Settings Via the ME Remote Controller
109
Interlock Settings Via the MA Remote Controller
113
Using the Built-In Temperature Sensor on the Remote Controller
114
5 Electrical Wiring Diagram
116
Electrical Wiring Diagram of the Heat Source Unit
118
Electrical Wiring Diagram of the BC Controller
119
Electrical Wiring Diagram of Transmission Booster
129
6 Refrigerant Circuit
130
Refrigerant Circuit Diagram
132
Principal Parts and Functions
137
7 Control
146
Functions and Factory Settings of the Dipswitches
148
Controlling the Heat Source Unit
154
Controlling BC Controller
171
Operation Flow Chart
172
8 Test Run Mode
184
Items to be Checked before a Test Run
186
Test Run Method
187
Operating Characteristic and Refrigerant Amount
190
Adjusting the Refrigerant Amount
190
Refrigerant Amount Adjust Mode
195
The Following Symptoms Are Normal
199
Standard Operation Data (Reference Data)
200
9 Troubleshooting
246
Error Code Lists
248
Responding to Error Display on the Remote Controller
252
Investigation of Transmission Wave Shape/Noise
326
Troubleshooting Principal Parts
329
Refrigerant Leak
362
Compressor Replacement Instructions
366
Servicing the BC Controller
375
Troubleshooting Using the Heat Source Unit LED Error Display
378
10 LED Monitor Display on the Heat Source Unit Board
380
How to Read the LED on the Service Monitor
382
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