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CMB-P108
Mitsubishi Electric CMB-P108 User Manual
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AIR CONDITIONERS CITY
MUL
TI
Models
PQHY-P72,
P96TGMU-A
PQR
Y-P72,
P96TGMU-A
CMB-P104,
P105,
P106,
P108,
P1010,
P1013,
P1016NU-G
CMB-P108,
P1010,
P1013,
P1016NU-GA
CMB-P104,
P108NU-GB
Ser
vice Handbook
2
Table of Contents
Default Chapter
2
Safety Precautions
2
Before Installing the Unit
5
Table of Contents
8
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
II Restrictions
24
Types and Maximum Allowable Length of Cables
26
Switch Settings and Address Settings
27
Address Settings
28
Sample System Connection
32
An Example of a System to Which an MA Remote Controller Is Connected
33
An Example of a System to Which an M-NET Remote Controller Is Connected
55
An Example of a System to Which both MA Remote Controller and M-NET Remote Controller Are Connected
59
Restrictions on Pipe Length
62
Heat Source Unit / BC Controller Components
74
Heat Source Unit Components and Refrigerant Circuit
76
Control Box of the Heat Source Unit
78
Heat Source Unit Circuit Board
79
Relay Board
81
BC Controller (under the Panel)
82
Control Box of the BC Controller
84
BC Controller Circuit Board
85
4 Remote Controller
88
Functions and Specifications of MA and ME Remote Controllers
90
Group Settings and Interlock Settings Via the ME Remote Controller
91
Interlock Settings Via the MA Remote Controller
95
Using the Built-In Temperature Sensor on the Remote Controller
98
5 Electrical Wiring Diagram
100
Electrical Wiring Diagram of the Heat Source Unit
102
Electrical Wiring Diagram of the BC Controller
103
6 Refrigerant Circuit
112
Refrigerant Circuit Diagram
114
Principal Parts and Functions
118
Indoor Unit
124
7 Control
128
Functions and Factory Settings of the Dipswitches
130
Controlling the Heat Source Unit
138
Controlling BC Controller
151
Operation Flow Chart
152
8 Test Run Mode
164
Items to be Checked before a Test Run
166
Test Run Method
167
Operating Characteristic and Refrigerant Amount
168
Adjusting the Refrigerant Amount
169
Refrigerant Amount Adjust Mode
173
The Following Symptoms Are Normal
177
Standard Operation Data (Reference Data)
178
9 Troubleshooting
186
Check Code Lists
188
Responding to Error Display on the Remote Controller
191
1-Pqhy
191
Mechanical System
191
Mechanical System
225
2-Pqry
225
Investigation of Transmission Wave Shape/Noise
274
Troubleshooting Principal Parts
277
Solenoid Valve
279
Temperature Sensor
290
Bc Controller Transformer
297
Refrigerant Leak
307
Servicing the BC Controller
309
10 XLED Monitor Display on the Heat Source Unit Board
314
How to Read the LED on the Service Monitor
314
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Mitsubishi Electric CMB-P108 Specifications
General
Brand
Mitsubishi Electric
Model
CMB-P108
Category
Air Conditioner
Language
English
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