Gree KM21-BBU12-3 Manuals

Manuals and User Guides for Gree KM21-BBU12-3. We have 2 Gree KM21-BBU12-3 manuals available for free PDF download: Service Manual

Gree KM21-BBU12-3 Service Manual

Gree KM21-BBU12-3 Service Manual (183 pages)

CENTRAL AIR CONDITIONERS R410A T1/R410A/60Hz

Brand: Gree | Category: Air Conditioner | Size: 35 MB

Table of Contents

Table of Contents
3
Product
8
Models List
8
Outdoor Unit
8
BU Module
8
Indoor Unit
9
Nomenclature
11
Nomenclature of Outdoor Unit
11
Nomenclature of BU Module
11
Nomenclature of Indoor Unit
11
Function
12
Product Data
13
Product Data of Outdoor Unit
13
Product Data of Indoor Unit
14
Product Data of BU Module
20
Working Temperature Range
20
Piping Diagram
21
Control
22
Operation Flowchart
23
Cooling/Dry Operation
24
Heating Operation
25
Main Logic
26
Control Function of Outdoor Unit
26
Protection Function
27
Other Function
28
Control Function of Indoor Unit
29
Wired Remote Controller
30
Remote Controller
32
Wireless Remote Controller YT1F (MOTO)
37
Wireless Remote Controller YAA1FB1F
40
Wireless Remote Controller YAG1FBF
44
Wireless Remote Controller YB1FAF (XFAN)
50
Smart Zone Controller (CE50-24/E)
53
General Introduction
53
Communication Network
54
Lcd
54
Buttons
55
Installation
57
Precautions for Installation
58
Precautions for Installation
60
Key Points of Installation
60
Flow Chart of Installation
62
Outdoor Unit Installation
63
Precautions for R410A
63
Precaution for Installation
63
Precaution for Operation Test
63
Names of Main Parts
63
Parts and Components of Unit
64
Selection of Installation Location
64
Outline Dimension of the Outdoor Unit
65
Installation and Servicing Space
65
Installation of the Outdoor Unit
66
Indoor Unit Installation
67
Installation of Wall Mounted Type
67
Installation of Duct Type
69
Installation of Cassette Type
77
Installation of Floor Ceiling Type
82
Installation of Console Type
85
Bu Module Installation
90
Precaution for Installation
90
Names of Main Parts
90
Selection of Installation Location
91
Outline Dimension and Servicing Space of FXA2A-D
92
Outline Dimension and Servicing Space of KM21-BBU12-3
93
Outline Dimension and Servicing Space of KM21-BBU13-3
93
Outline Dimension and Servicing Space of FXA3A-D
94
Refrigeration Piping Work
96
Allowable Length and Drop Height of Connecting Pipe
96
Dimension of Connecting Pipe
96
Connection of Branch Pipe
97
Design Requirements for Oil Trap
97
Connection of Outdoor Unit Refrigerant Pipe
99
Installation of Piping Adapter
99
Precaution for Connection
101
Leak Test
103
Vacuum Operation
103
Refrigerant Charging
104
Electrical Wiring Work
107
Wiring Connection
107
Requirements of Power Circuit and Cable
107
Ground Requirements
108
Precautions of Electrical Wiring Work
108
Precaution of Laying Wires
108
Electrical Wiring Work for Outdoor Unit
109
Electrical Wiring Work for BU Module
109
Instructions for DIP Switch
111
Electrical Wiring Work for Indoor Unit
111
Installation of Drainage Pipeline
112
Material Quality Requirements for Condensate Pipe
112
Key Points for Condensate Pipe Installation
112
Installation of Protective Layer on Connection Pipe
116
Maintenance
117
Testing Board Introduction
118
Compose of Testing Board
118
Instruction of Function and Data Section
118
Process Control Setting
119
Troubleshooting
121
Check before Contacting Maintenance Serviceman
121
Problem Handling
122
Error Description
122
Flow Chart of Troubleshooting
125
Malfunction Display: Current Protection
125
Malfunction Display: High Pressure Protection
126
Malfunction Display: Low Pressure Protection
127
Malfunction Display: Discharge Temperature Protection
128
Malfunction Display: High/Low Pressure Sensor Error
128
Malfunction Display: Communication Error
129
Malfunction Display: Indoor Unit Water Full Protection
130
Malfunction Display: Temperature Sensor Error
130
Power Distribution
131
Diagram of Power Distribution
131
Wiring Diagram
132
The Resistances of Common Temperature Sensors
138
15 Kω
138
20 Kω
139
50 Kω
140
Disassembly and Assembly Procedure of Main Parts
143
Outdoor Unit
143
Indoor Unit
148
Exploded Views and Part List
158
Outdoor Unit
158
Indoor Unit
160
BU Module
178

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Gree KM21-BBU12-3 Service Manual

Gree KM21-BBU12-3 Service Manual (183 pages)

Central Air Conditioners R410A T1/R410A/60Hz

Brand: Gree | Category: Air Conditioner | Size: 20 MB

Table of Contents

Table of Contents
3
Product
8
Models List
8
Outdoor Unit
8
BU Module
8
Indoor Unit
9
Nomenclature
11
Nomenclature of Outdoor Unit
11
Nomenclature of BU Module
11
Nomenclature of Indoor Unit
11
Function
12
Product Data
13
Product Data of Outdoor Unit
13
Product Data of Indoor Unit
14
Product Data of BU Module
20
Working Temperature Range
20
Piping Diagram
21
Control
22
Operation Flowchart
23
Cooling/Dry Operation
24
Heating Operation
25
Main Logic
26
Control Function of Outdoor Unit
26
Protection Function
27
Other Function
28
Control Function of Indoor Unit
29
Wired Remote Controller
30
Remote Controller
32
Wireless Remote Controller YT1F (MOTO)
37
Wireless Remote Controller YAA1FB1F
40
Wireless Remote Controller YAG1FBF
44
Wireless Remote Controller YB1FAF (XFAN)
50
Smart Zone Controller (CE50-24/E)
53
General Introduction
53
Communication Network
54
Lcd
54
Buttons
55
Installation
57
Precautions for Installation
58
Precautions for Installation
60
Key Points of Installation
60
Flow Chart of Installation
62
Outdoor Unit Installation
63
Precautions for R410A
63
Precaution for Installation
63
Precaution for Operation Test
63
Names of Main Parts
63
Parts and Components of Unit
64
Selection of Installation Location
64
Outline Dimension of the Outdoor Unit
65
Installation and Servicing Space
65
Installation of the Outdoor Unit
66
Indoor Unit Installation
67
Installation of Wall Mounted Type
67
Installation of Duct Type
69
Installation of Cassette Type
77
Installation of Floor Ceiling Type
82
Installation of Console Type
85
Bu Module Installation
90
Precaution for Installation
90
Names of Main Parts
90
Selection of Installation Location
91
Outline Dimension and Servicing Space of FXA2A-D
92
Outline Dimension and Servicing Space of KM21-BBU12-3
93
Outline Dimension and Servicing Space of KM21-BBU13-3
93
Outline Dimension and Servicing Space of FXA3A-D
94
Refrigeration Piping Work
96
Allowable Length and Drop Height of Connecting Pipe
96
Dimension of Connecting Pipe
96
Connection of Branch Pipe
97
Design Requirements for Oil Trap
97
Connection of Outdoor Unit Refrigerant Pipe
99
Installation of Piping Adapter
99
Precaution for Connection
101
Leak Test
103
Vacuum Operation
103
Refrigerant Charging
104
Electrical Wiring Work
107
Wiring Connection
107
Requirements of Power Circuit and Cable
107
Ground Requirements
108
Precautions of Electrical Wiring Work
108
Precaution of Laying Wires
108
Electrical Wiring Work for Outdoor Unit
109
Electrical Wiring Work for BU Module
109
Instructions for DIP Switch
111
Electrical Wiring Work for Indoor Unit
111
Installation of Drainage Pipeline
112
Material Quality Requirements for Condensate Pipe
112
Key Points for Condensate Pipe Installation
112
Installation of Protective Layer on Connection Pipe
116
Maintenance
117
Testing Board Introduction
118
Compose of Testing Board
118
Instruction of Function and Data Section
118
Process Control Setting
119
Troubleshooting
121
Check before Contacting Maintenance Serviceman
121
Problem Handling
122
Error Description
122
Flow Chart of Troubleshooting
125
Malfunction Display: Current Protection
125
Malfunction Display: High Pressure Protection
126
Malfunction Display: Low Pressure Protection
127
Malfunction Display: Discharge Temperature Protection
128
Malfunction Display: High/Low Pressure Sensor Error
128
Malfunction Display: Communication Error
129
Malfunction Display: Indoor Unit Water Full Protection
130
Malfunction Display: Temperature Sensor Error
130
Power Distribution
131
Diagram of Power Distribution
131
Wiring Diagram
132
The Resistances of Common Temperature Sensors
138
15 Kω
138
20 Kω
139
50 Kω
140
Disassembly and Assembly Procedure of Main Parts
143
Outdoor Unit
143
Indoor Unit
148
Exploded Views and Part List
158
Outdoor Unit
158
Indoor Unit
160
BU Module
178

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