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Sanyo
Air Conditioner
CM1972
Sanyo CM1972 User Manual
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APPLICABLE INDOOR UNITS
CM1972
CM2472
CM3172
Multi-Outdoor Unit
Indoor Unit
3-Room
4-Room
4-Room
KMS0772
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
KMS0972
KMS1272
KMS1872
KMS2472
NOTE
The table lists the wall-mounted type of indoor units as representative models.
4
3
5
Table of Contents
Default Chapter
2
Please Read before Starting
2
Table of Contents
3
Applicable Indoor Units
4
1 Operating Range
5
2 Specifications
6
Unit Specifications
6
SPECIFICATIONS 2-1. Unit Specifications
6
Major Component Specifications
12
Other Component Specifications
15
3 Dimensional Data
16
4 Refrigerant Flow Diagram
19
Insulation of Refrigerant Tubing
20
5 Performance Data
22
Temperature Charts
22
Cooling Capacity
36
6 Electrical Data
39
Electric Wiring Diagrams
39
7 Functions
42
Explanation of Functions
42
FUNCTIONS 7-1. Explanation of Functions
42
Protective Functions
45
8 Troubleshooting
47
Precautions before Performing Inspection or Repair
47
TROUBLESHOOTING 8-1. Precautions before Performing Inspection or Repair
47
Trouble Diagnosis by Error Monitor Lamps
48
Checking the Outdoor System
49
Trouble Diagnosis of each Part
50
Trouble Diagnosis of Fan Motor
54
9 Refrigerant R410A: Special Precautions When Servicing Unit
55
Characteristics of New Refrigerant R410A
55
SPECIAL PRECAUTIONS WHEN SERVICING UNIT 9-1. Characteristics of New Refrigerant R410A
55
Checklist before Servicing
56
Tools Specifically for R410A
57
Tubing Installation Procedures
57
In Case of Compressor Malfunction
58
In Case Refrigerant Is Leaking
60
Charging Additional Refrigerant
61
Retro-Fitting Existing Systems
61
Appendix Ainstallation Instructions
62
Installation Instructions
63
Installation Site Selection
66
Diagram of Outdoor Unit Installation
76
Air Purging
80
Wiring Instructions
83
Appendix B Unit Combination Tables
89
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Sanyo CM1972 Specifications
General
Brand
Sanyo
Model
CM1972
Category
Air Conditioner
Language
English
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