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RX12MY1
Daikin RX12MY1 User Manual
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Si30-408
Basic T
raining
Manual
2
Table of Contents
General
3
Table of Contents
3
What I a VRV System?
6
What Is a VRV System
6
List of VRV Unit Models
7
List of Outdoor Unit Models
7
Nomenclature
9
System Basic Configuration
15
Cooling / Heating Selection -Standard- System
15
Heat Recovery (Cooling / Heating Individual Operating) System
18
Super Wiring System
19
Points of Super Wiring System
19
Wiring Length
20
REFNET Piping
21
Allowable Length of Refrigerant Piping
21
For Refrigerant Piping
23
B. Basic Informationb. Basic Informationb. Basic Informationb. Basic Information
25
Default Chapter
25
B. Basic Information
25
1 Explanations on P-H Diagram (Refrigerant Characteristics Table)
26
2 Concept of Basic Refrigeration Cycle
27
3 Points of Refrigerant Control of VRV System
28
Cooling Operation
28
Heating Operation
29
Compressor Capacity Control
30
Control of Electronic Expansion Valve
31
4 Control of Indoor Unit
32
Thermostat-Control
32
Drain Pump Control
34
Freeze-Up Prevention Control
35
Heater Control
36
Thermostat Control in Cooling / Heating Automatic Operation
37
5 Other Functional Operations
39
Explanations on Main Functional Control
39
Explanations on Electric and Functional Components
40
C. Field Settings from Remote Controller
45
1 Field Settings from Remote Controller
46
Field Setting Mode
47
Service Mode
53
Check Mode
58
Test Operation Mode
59
2 Field Setting on Outdoor Unit
60
Explanation of Basic Mode
61
Use of each Setting Mode
67
D. Troubleshootingd. Troubleshooting
71
Default Chapter
71
D. Troubleshooting
71
1 For Troubleshooting
72
2 Check Items before Troubleshooting
73
Check Items on Operation Condition (Essential Items as a Minimum)
73
Check for Malfunction in Cooling Operation
74
Check for Malfunction in Heating Operation
75
3 Method of Troubleshooting
76
Excessive / Insufficient Charging of Refrigerant
76
Troubleshooting
78
Abnormal Judgment for Various Sensors
79
Structure and Operation of Electronic Expansion Valve
87
Structure and Movements of Four-Way Valve
89
Structure and Operation of Solenoid Valve
91
Structure and Operation of Two-Way Solenoid Valve
92
Check on Outdoor Fan Motor
93
Diagnosis on Malfunction Code of Inverter System
94
Diagnosis on Transmission System Malfunction
97
4 Malfunction Tree Analysis (FTA)
100
Actuation of Freeze-Up Prevention Control of Indoor Unit
101
Actuation of HPS in Heating Operation
102
Abnormal Discharge Pipe Temperature in Cooling Operation
103
Water Leakage from Indoor Unit
104
Defective Lubrication of Compressor
105
5 List of Malfunction Code
106
6 Operating Condition Check Sheet
112
E. Cases for Examination
113
F. Service Checker Type3F. Service Checker Type3 Application Edition
131
1 List of Applicable Models of TYPE3
132
VRV Multi Systems (R410A/R407C/R22)
132
2 What Service Checker Can Do
134
3 Recording and Playback of Operation Data
141
Menu Window (Map Mode)
141
Periodical Recording Setting Window
143
Centralized Operation (F7)
146
Display of Operation Data
146
Playback of Data Recorded
148
4 Collection and Playback of Data on Checker
150
Retrieval of Raw Data
151
Retrieval of Processed Data
153
Data Processing
155
Organizing Graph
172
Using Secondary Axis
174
Traverse of X Axis
176
5 Points of Analysis
182
Method of Use by Symptom
182
To Conduct Analysis
182
Effective Use of Checker
184
Example of Checker Connection
185
Method of Mounting Sensor Kit
186
Place to Save Data
187
G. Appendixg. Appendix
195
Default Chapter
195
G. Appendix
195
1 Characteristics of Refrigerant
196
R22
196
R407C
197
R410A
199
2 Psychrometric Chart
201
3 How to Calculate Cooling / Heating Capacity
202
4 Field Settings for the Replacement of the Spare Control PC Board
203
5 Adaptors for Connection of Air Conditioners
205
Wiring Adaptor for Electrical Appendices (2) <KRP4A51, 52, 53, 54
205
Wiring Adaptor for Electrical Appendices (1) (KRP2A61, 62)
213
External Control Adaptor of Outdoor Unit
220
Dta104A53, 61, 62
220
DIII-NET Expander Adaptor <DTA109A51
225
System Configuration
225
Versatile Usage
229
6 How to Replace the Compressor
232
7 HRV-Related
233
Group Interlock Control
233
Centralized Control System
238
Examples of Mistakes in Wiring and System Designing
240
Indoor Unit
240
Additional Functions
241
Central Control System (DCS302B61)
246
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Daikin RX12MY1 Specifications
General
Type
Inverter
Cooling Capacity
3.5 kW
Heating Capacity
4.0 kW
Refrigerant
R32
Power Supply
220-240V, 50Hz
Indoor Unit Weight
9 kg
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