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AM028NNNDEH Series
Samsung AM028NNNDEH Series Service Manual
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SY
STEM AIRC
ONDITIONER
C
ONTENTS
SY
STEM AIRC
ONDITIONER
INDOOR UNIT
AM045/056/071/090/112/128/140NN4DEH/**
AM015/022/028/036/045/056/060NNNDEH/**
AM009/012/018/024/036/048NN4DCH/**
AM005/007/009/012/018/020NNNDCH/**
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4.
T
roubleshooting
5. PCB Diagram and P
ar
ts List
6.
W
iring Diagram
7. Referenc
e Sheet
2
Table of Contents
Default Chapter
2
Table of Contents
2
1 Precautions
5
Precautions for the Service
5
Precautions for the Static Electricity and PL
5
Precautions for the Safety
5
Precautions for Handling Refrigerant for Air Conditioner
6
Precautions for Welding the Air Conditioner Pipe
6
Precautions for Additional Supplement of Air Conditioner Refrigerant
6
Other Precautions
6
2 Product Specifications
7
Product Specifacations
7
Indoor Unit
7
Accessory and Option Specifications
13
Accessories
13
3 Disassembly and Reassembly
16
Indoor Unit
17
4 Troubleshooting
24
Check-Up Window Description
24
Service Operation
25
Special Operation
25
Vacuum Operation
28
DVM S Models EEPROM Code Table
29
Troubleshooting
30
Setting Option Setup Method
30
Option Items
41
What to Check before Diagnosis
42
Number Display Method (Outdoor Unit, MCU, Cable Remote Control, Wall-Mount, Etc.)
44
Appropriate Measures for Different Symptom
50
Outdoor Unit Operation Flow
50
Main PCB Has no Power Phenomenon
51
Indoor Unit ROOM Sensor Error (Open/Short)
52
Indoor Unit EVAP in Sensor Error (Open/Short)
53
Indoor EVAP out Sensor Error (Open/Short)
54
Indoor Heat Exchanger's EVAP in Sensor Dislocation Error
55
Indoor Heat Exchanger's EVA out Sensor Dislocation Error (Open/Short)
56
Imultaneous Indoor Heat Exchanger's EVA IN, out Sensor Dislocation Error (Open/Short)
57
Electronic Expansion Valve Opening Malfunction (2Nd Stage)
58
Breakdown of EEV (2Nd)
59
Problem with EEV Closure (2Nd)
60
Eev(Electronic Expansion Valve) Opening Malfunction (2Nd Stage)
61
Eev(Electronic Expansion Valve) Closure Malfunction (2Nd Stage)
62
Detection of Floating Switch of Indoor Unit's Drain Pump
63
The Operational Error of Indoor Unit's Fan Motor
64
Mixed Operation Error (Only Applicable to Heat Pump Model/Not to HR Model)
65
EEPROM Error
66
Option Error of the Remote Controller for an Indoor Unit
67
Error Due to Confused Use of Fahrenheit and Celsius
67
Simultaneous Opening of Cooling/Heating MCU SOL Valves 1St/2Nd
68
Error Due to Incorrect Indoor Unit Power/Communication Cable Connection
69
SPI Feedback Error
70
Outdoor Unit Pipe Inspection Error
71
Communication Error between Indoor and Outdoor Units During Tracking
72
Communication Error between Indoor and Outdoor Units after Tracking
73
Communication Error between Main and Sub Unit of Outdoor Unit or between Outdoor Units
74
Communication Error between MCU and Outdoor Unit
75
Internal Communication Error of the Outdoor Unit C-Box
76
Internal PCB Communication Error of the Outdoor Unit C-Box
77
Communication Error between MCU and Outdoor Unit after Tracking Is Completed
78
MCU Branch Part Setup Error - Inconsecutive Connection with the Use of 2 Branch Parts
79
MCU Branch Part Setup Error - Repeated Setup for the same Address over 3 Times
80
MCU Branch Part Setup Error - Non-Installed Address Setup
81
Setup Error for MCU Branch Part - Setup Error for MCU Quantity Used
82
MCU Branch Part Setup Error - Overlapping Indoor Unit Address Setup
83
MCU Branch Part Setup Error - Set as Being Used Without Connection to an Indoor Unit
84
MCU Branch Part Setup Error - Connect an Indoor Unit to a Branch Part Not Being Used
85
MCU Branch Part Setup Error - Connect more Indoor Units than What Is Actually Set up in MCU
86
Outdoor Temperature Sensor Error
87
Outdoor Temperature Dislocation Error
88
Cond out Temperature Sensor Error (Open/Short)
89
Outdoor Cond out Sensor Breakaway Error
90
Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT)
91
Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT)
92
Compressor Discharge or Top 1/2 Temperature Sensor Error
93
Dislocation Error of Compressor SUMP Temperature (Oil Temperature) Sensor
94
Suction Temperature Sensor Breakaway Error
95
SUMP Temperature Sensor Error (OPEN/SHORT)
96
High Pressure Sensor Error (Open/Short)
97
Low Pressure Sensor Error (Open/Short)
98
Suction Temperature Sensor Error (Open/Short)
99
Liquid Pipe Temperature Sensor Error (Open/Short)
100
EVI in Temperature Sensor Error (Open/Short)
101
EVI out Temperature Sensor Error (Open/Short)
102
Suction-2 Temperature Sensor Error (OPEN/SHORT)
103
Comp. down Due to High Pressure Protection Control
104
Comp. down Due to Low Pressure Protection Control
105
Sump Sensor Error Due to Protection Control
106
Comp. down Due to Compressor Discharge Temperature Sensor
107
3-Phase Input Wiring Error
108
Comp. down by Compression Ratio Control
109
EVI EEV Open Error
110
Refrigerant Leakage Error
111
Prohibition of the Operation of Compressor Due to Ooutdoor Temperature
112
High Pressure Standard Not Met before Air Conditioning (Inability to Re-Operate)
113
CCH Malfunction and Sump Sensor Miswiring Error
114
Fan Starting Error
115
Fan Lock Error
116
Momentary Blackout Error
117
Outdoor Fan Motor Overheating
118
Outdoor Unit Fan Motor RPM Error
119
Fan IPM Overheat Error
120
Over-Voltage Error of an Outdoor Fan Motor
121
Counter-Rotation Error of an Outdoor Fan Motor
121
Compressor Excess Current Error
122
Compressor Starting Error
123
Inverter Overcurrent Error
124
Overvoltage / Low Voltage Error
125
DC Link Voltage Sensor Error
126
Liquid Compression Prevention Control
127
Fan Motor Overcurrent Error
128
Input / Output Current Sensor Error
129
Outdoor Fan PCB Overvoltage / Low Voltage Error
130
Hall IC(Fan) Error
131
Inverter Overheat Error
132
Model Mismatching of Indoor Unit
133
Breakdown of an EEV(1 St )
134
Breakdown of an EEV Closure
135
Electronic Expansion Valve Closing Malfunction (2Nd Stage)
136
Electronic Expansion Valve Opening Malfunction (2Nd Stage)
137
Hydro Unit Water in Temperature Sensor Error (Open/Short)
138
Hydro Unit Water out Temperature Sensor Error (Open/Short)
139
Hydro Unit Water Tank Temperature Sensor Error (Open/Short)
140
Emergency Error (Check the Water Piping Equipment)
141
Error to Prevention from Freezing and Bursting of Heat Exchanger
142
Breakaway of Water out Temperature Sensor
143
Breakaway of Flow Switch
144
Thermostat Wiring Error
145
DC FAN Motor Feedback Error
146
Water Tank Sensor Defective
147
5 PCB Diagram and Parts List
148
Indoor Unit
148
Wind-Free 4Way Cassette Type, Mini 4Way Cassette
148
6 Wiring Diagram
151
Indoor
151
Wind-Free 4Way Cassette Type
151
7 Reference Sheet
152
Index for Model Name
152
Indoor Unit
152
Panel
153
Pump-Down Method
154
Precautions for Pump-Down
154
For Single Installation of Outdoor Unit (Only One Outdoor Unit Installed)
154
When Two or more Outdoor Units Are Installed
154
How to Put Refrigerant in Refrigerant Container
155
How to Put Refrigerant in Container before Pump-Down
155
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Samsung AM028NNNDEH Series Specifications
General
Brand
Samsung
Model
AM028NNNDEH Series
Category
Air Conditioner
Language
English
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