Samsung AM024NN4DCH Series Manuals

Table of Contents

2

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

Product Specifications

7

Product Specifacations

7

Indoor Unit

7

Accessory and Option Specifications

15

Accessories

15

Disassembly and Reassembly

18

Indoor Unit

19

Troubleshooting

26

Check-Up Window Description

26

Service Operation

27

Special Operation

27

Vacuum Operation

30

DVM S Models EEPROM Code Table

31

Troubleshooting

32

Setting Option Setup Method

32

Input Option

35

Check Operation

35

Setting an Indoor Unit Address and Installation Option

36

Option Items

43

What to Check before Diagnosis

44

Global 4Way Cassette Type

44

Number Display Method (Outdoor Unit, MCU, Cable Remote Control, Wall-Mount, Etc.)

46

Appropriate Measures for Different Symptom

52

Outdoor Unit Operation Flow

52

Main PCB Has no Power Phenomenon

53

Indoor Unit ROOM Sensor Error (Open/Short)

54

Indoor Unit EVAP in Sensor Error (Open/Short)

55

Indoor EVAP out Sensor Error (Open/Short)

56

Indoor Heat Exchanger's EVAP in Sensor Dislocation Error

57

Indoor Heat Exchanger's EVA out Sensor Dislocation Error (Open/Short)

58

Imultaneous Indoor Heat Exchanger's EVA IN, out Sensor Dislocation Error (Open/Short)

59

Electronic Expansion Valve Opening Malfunction (2Nd Stage)

60

Breakdown of EEV (2Nd)

61

Problem with EEV Closure (2Nd)

62

Eev(Electronic Expansion Valve) Opening Malfunction (2Nd Stage)

63

Eev(Electronic Expansion Valve) Closure Malfunction (2Nd Stage)

64

Detection of Floating Switch of Indoor Unit's Drain Pump

65

The Operational Error of Indoor Unit's Fan Motor

66

Mixed Operation Error (Only Applicable to Heat Pump Model/Not to HR Model)

67

EEPROM Error

68

Option Error of the Remote Controller for an Indoor Unit

69

Error Due to Confused Use of Fahrenheit and Celsius

69

Simultaneous Opening of Cooling/Heating MCU SOL Valves 1St/2Nd

70

Error Due to Incorrect Indoor Unit Power/Communication Cable Connection

71

SPI Feedback Error

72

Outdoor Unit Pipe Inspection Error

73

Communication Error between Indoor and Outdoor Units During Tracking

74

Communication Error between Indoor and Outdoor Units after Tracking

75

Communication Error between Main and Sub Unit of Outdoor Unit or between Outdoor Units

76

Communication Error between MCU and Outdoor Unit

77

Internal Communication Error of the Outdoor Unit C-Box

78

Internal PCB Communication Error of the Outdoor Unit C-Box

79

Communication Error between MCU and Outdoor Unit after Tracking Is Completed

80

MCU Branch Part Setup Error - Inconsecutive Connection with the Use of 2 Branch Parts

81

MCU Branch Part Setup Error - Repeated Setup for the same Address over 3 Times

82

MCU Branch Part Setup Error - Non-Installed Address Setup

83

Setup Error for MCU Branch Part - Setup Error for MCU Quantity Used

84

MCU Branch Part Setup Error - Overlapping Indoor Unit Address Setup

85

MCU Branch Part Setup Error - Set as Being Used Without Connection to an Indoor Unit

86

MCU Branch Part Setup Error - Connect an Indoor Unit to a Branch Part Not Being Used

87

MCU Branch Part Setup Error - Connect more Indoor Units than What Is Actually Set up in MCU

88

Outdoor Temperature Sensor Error

89

Outdoor Temperature Dislocation Error

90

Cond out Temperature Sensor Error (Open/Short)

91

Outdoor Cond out Sensor Breakaway Error

92

Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT)

93

Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT)

94

Compressor Discharge or Top 1/2 Temperature Sensor Error

95

Dislocation Error of Compressor SUMP Temperature (Oil Temperature) Sensor

96

Suction Temperature Sensor Breakaway Error

97

SUMP Temperature Sensor Error (OPEN/SHORT)

98

High Pressure Sensor Error (Open/Short)

99

Low Pressure Sensor Error (Open/Short)

100

Suction Temperature Sensor Error (Open/Short)

101

Liquid Pipe Temperature Sensor Error (Open/Short)

102

EVI in Temperature Sensor Error (Open/Short)

103

EVI out Temperature Sensor Error (Open/Short)

104

Suction-2 Temperature Sensor Error (OPEN/SHORT)

105

Comp. down Due to High Pressure Protection Control

106

Comp. down Due to Low Pressure Protection Control

107

Sump Sensor Error Due to Protection Control

108

Comp. down Due to Compressor Discharge Temperature Sensor

109

3-Phase Input Wiring Error

110

Comp. down by Compression Ratio Control

111

EVI EEV Open Error

112

Refrigerant Leakage Error

113

Prohibition of the Operation of Compressor Due to Ooutdoor Temperature

114

High Pressure Standard Not Met before Air Conditioning (Inability to Re-Operate)

115

CCH Malfunction and Sump Sensor Miswiring Error

116

Fan Starting Error

117

Fan Lock Error

118

Momentary Blackout Error

119

Outdoor Fan Motor Overheating

120

Outdoor Unit Fan Motor RPM Error

121

Fan IPM Overheat Error

122

Over-Voltage Error of an Outdoor Fan Motor

123

Counter-Rotation Error of an Outdoor Fan Motor

123

Compressor Excess Current Error

124

Compressor Starting Error

125

Inverter Overcurrent Error

126

Overvoltage / Low Voltage Error

127

DC Link Voltage Sensor Error

128

Liquid Compression Prevention Control

129

Fan Motor Overcurrent Error

130

Input / Output Current Sensor Error

131

Outdoor Fan PCB Overvoltage / Low Voltage Error

132

Hall IC(Fan) Error

133

Inverter Overheat Error

134

Model Mismatching of Indoor Unit

135

Breakdown of an EEV

136

Breakdown of an EEV Closure

137

Electronic Expansion Valve Closing Malfunction (2Nd Stage)

138

Electronic Expansion Valve Opening Malfunction (2Nd Stage)

139

Hydro Unit Water in Temperature Sensor Error (Open/Short)

140

Hydro Unit Water out Temperature Sensor Error (Open/Short)

141

Hydro Unit Water Tank Temperature Sensor Error (Open/Short)

142

Emergency Error (Check the Water Piping Equipment)

143

Error to Prevention from Freezing and Bursting of Heat Exchanger

144

Breakaway of Water out Temperature Sensor

145

Breakaway of Flow Switch

146

Thermostat Wiring Error

147

DC FAN Motor Feedback Error

148

Water Tank Sensor Defective

149

PCB Diagram and Parts List

150

Indoor Unit

150

Wind-Free 4Way Cassette Type, Mini 4Way Cassette

150

Wiring Diagram

153

Indoor

153

Wind-Free 4Way Cassette Type

153

Reference Sheet

154

Index for Model Name

154

Indoor Unit

154

Panel

155

Pump-Down Method

156

Precautions for Pump-Down

156

For Single Installation of Outdoor Unit (Only One Outdoor Unit Installed)

156

When Two or more Outdoor Units Are Installed

156

How to Put Refrigerant in Refrigerant Container

157

How to Put Refrigerant in Container before Pump-Down

157

Samsung AM024NN4DCH Series Manuals

Samsung AM024NN4DCH Series Service Manual (158 pages)

Table of Contents

Samsung AM024NN4DCH Series Service Manual (156 pages)

Table of Contents

1 Precautions

Precautions for the Service

Precautions for the Static Electricity and PL

Precautions for the Safety

Precautions for Handling Refrigerant for Air Conditioner

Precautions for Welding the Air Conditioner Pipe

Precautions for Additional Supplement of Air Conditioner Refrigerant

Other Precautions

2 Product Specifications

Product Specifacations

Accessory and Option Specifications

3 Disassembly and Reassembly

Indoor Unit

4 Troubleshooting

Check-Up Window Description

Service Operation

Troubleshooting

Appropriate Measures for Different Symptom

5 PCB Diagram and Parts List

Indoor Unit

6 Wiring Diagram

Indoor

7 Reference Sheet

Index for Model Name

Pump-Down Method

How to Put Refrigerant in Refrigerant Container

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