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Friedrich
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MRM09Y1J
Friedrich MRM09Y1J Service & Parts Manual
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PB
Servic
e/ P
arts Manual
Floating Air
96601400_00
MM
09Y1J - 9,000 BTU Single Zone - 110V
MM12Y1J - 12,000 BTU Single Zone - 110V
MM18Y3J - 18,000 BTU Single Zone - 230V
MM24Y3J - 24,000 BTU Single Zone - 230V
MM36Y3J - 36,000 BTU Single Zone - 230V
2
Table of Contents
Table of Contents
2
Table of Contents
3
Introduction
4
Important Safety Information
4
Personal Injury or Death Hazards
6
Model Identification Guide
7
Indoor Units
8
Outdoor Units
9
Remote Control
9
Specifications
10
Product Specifications
10
9-12K Operation Characteristics Curve
12
Operation Characteristics Curve
12
Operation Characteristics Curve
13
9-12K Capacity Variation Ratio According to Temperature
14
Capacity Variation Ratio According to Temperature
15
9-12K Noise Curve
15
18-24K Noise Curve
16
Noise Curve
16
Cooling Data Sheet in Rated Frequency
17
Heating Data Sheet in Rated Frequency
17
Cooling Capacity Charts
18
Cooling Capacity Charts
19
Cooling Capacity Charts
20
Heating Capacity Charts
21
9-12K Indoor Unit Dimensions
24
18-24K Indoor Unit Dimensions
25
9-12K Outdoor Unit Dimensions
26
18-24K Outdoor Unit Dimensions
27
Outdoor Unit Dimensions
27
Operation
28
Remote Control Button Identification
28
Remote Control Description
29
9-12K Sequence of Operation
31
18-24K Sequence of Operation
37
Sequence of Operation
42
9-12K Refrigerant System Diagram
45
Refrigerant System Diagram
45
Refrigerant System Diagram
46
Installation
47
Installation Tools
48
Installation Dimension Diagram
49
Installation Work Flow
50
Installation Parts Checklist
51
Selection of Installation Location
51
Installation of Indoor Unit
53
Installation of the Outdoor Unit
57
Leak Check, Evacuation, and Charging (Triple Evacuation)
59
Checklist and Operation Test
61
Check Unit Following Installation
61
Test Operation
61
Removal
62
Indoor Unit
62
Outdoor Unit
68
R-410A Sealed System Repair
72
Service Valves Appearance
72
Pumping down
72
Gas Charging (after Repair)
74
Components Testing
75
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K)
75
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (20K)
76
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (50K)
77
9-12K Indoor Unit Printed Circuit Board Identification
78
Indoor Unit Printed Circuit Board Identification
79
Indoor Unit Printed Circuit Board Identification
80
9-12K Outdoor Unit Printed Circuit Board Identification
81
Outdoor Unit Printed Circuit Board Identification
82
Troubleshooting
83
Diagnostic Codes
83
Malfunction of Temperature Sensor F1, F2
92
Malfunction of Blocked Protection of IDU Fan Motor H6
93
Malfunction of Protection of Jumper Cap C5
94
Malfunction of IDU Fan Motor U8
95
Overcurrent Protection E5
96
Malfunction of Communication E6
97
Malfunction of Power Supply from Indoor to Outdoor Unit
98
Indoor Fan Does Not Rotate and There Is no Feedback
99
Temperature Sensor Malfunction
100
Malfunction Diagnosis of Startup Failure
101
Diagnosis of Losing Synchronism for Compressor
102
Diagnosis of Overload and Discharge Malfunction
103
Capacity Charging Malfunction (Outdoor Unit;18K, 24K, and 36K)
104
IPM Protection, Out-Of-Step Fault, Compressor Phase Overcurrent
105
PFC (Correction Power Factor) Outdor Unit Malfuction
107
Troubleshooting for Normal Malfunction
108
Wiring Diagrams
112
9-12K Indoor Unit Wiring Diagram
112
Indoor Unit Wiring Diagram
112
Indoor Unit Wiring Diagram
113
Indoor Unit Wiring Diagrams
113
9-12K Outdoor Unit Wiring Diagrams
114
Outdoor Unit Wiring Diagrams
114
Outdoor Unit Wiring Diagrams
115
Parts Catalog
116
Indoor Unit MWM09Y1J, MWM12Y1J
116
Indoor Unit MWM18Y3J, MWM24Y3J
118
Indoor Unit MWM36YJ3
121
Outdoor Unit MRM09Y1J, MRM12Y1J
123
Outdoor Unit MRM18Y3J
126
Outdoor Unit MRM24Y3J
128
Outdoor Unit MRMY36J
130
Appendix
132
Appendix 1: Reference Sheet of Celsius and Farenheit
132
Appendix 2: Configuration of Connection Pipe
132
Appendix 3: Pipe Expanding Method
133
Limited Warranty
134
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Friedrich MRM09Y1J Specifications
General
Brand
Friedrich
Model
MRM09Y1J
Category
Air Conditioner
Language
English
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