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Daikin FXDQ20M7 Manuals
Manuals and User Guides for Daikin FXDQ20M7. We have
1
Daikin FXDQ20M7 manual available for free PDF download: Service Manual
Daikin FXDQ20M7 Service Manual (225 pages)
VRV II-SR-410A Heat Pump 50Hz
Brand:
Daikin
| Category:
Heat Pump
| Size: 5.11 MB
Table of Contents
Table of Contents
2
Part 5 Function
2
Introduction
6
Safety Cautions
6
Part 1 General Information
11
Model Names of Indoor/Outdoor Units
12
External Appearance
13
Indoor Units
13
Capacity Range
14
Part 2 Specifications
15
Outdoor Units
16
Indoor Units
18
Ceiling Suspended Type
25
Floor Standing Type
28
Part 3 List of Electrical and Functional Parts
37
List of Electrical and Functional Parts
38
Outdoor Unit
38
Indoor Unit
39
Part 4 Refrigerant Circuit
43
Refrigerant Circuit
44
Rxysq4·5·6M
44
Refrigerant Circuit Part
44
Functional Parts Layout
46
Rxysq4·5·6M
46
Part 5 Function
47
Operation Mode
48
Basic Control
49
Normal Operation
49
Compressor PI Control
50
Electronic Expansion Valve PI Control
51
Cooling Operation Fan Control
52
Special Control
53
Startup Control
53
Oil Return Operation
54
Defrosting Operation
56
Pump-Down Residual Operation
57
Restart Standby
58
Stopping Operation
59
Pressure Equalization Prior to Startup
60
Protection Control
61
High Pressure Protection Control
61
Low Pressure Protection Control
62
Discharge Pipe Protection Control
63
Inverter Protection Control
64
Other Control
65
Demand Operation
65
Heating Operation Prohibition
65
Outline of Control (Indoor Unit)
66
Drain Pump Control
66
Remote Controller
67
Louver Control for Preventing Ceiling Dirt
68
Thermostat Sensor in Remote Controller
69
Freeze Prevention
71
View of Operations of Swing Flaps
72
Part 6 Test Operation
73
Test Operation
74
Procedure and Outline
74
Check Operation
75
Operation When Power Is Turned on
77
Outdoor Unit PC Board Layout
78
Field Setting
79
Field Setting from Remote Controller
79
Simplified Remote Controller
81
Detailed Explanation of Setting Modes
84
Group No. Setting Example
88
Contents of Control Modes
89
Field Setting from Outdoor Unit
91
Mode Changing Procedure
92
Detail of Setting Mode
97
Image of Operation in the Case of a and B
102
Part 7 Troubleshooting
107
Troubleshooting by Remote Controller
109
The INSPECTION / TEST Button
109
Self-Diagnosis by Wired Remote Controller
110
Self-Diagnosis by Wireless Remote Controller
111
Operation of the Remote Controller's Inspection / Test Operation Button
113
Remote Controller Service Mode
114
List of Malfunction Code
116
Malfunction Code Indication by Outdoor Unit PCB
118
A0" Indoor Unit: Error of External Protection Device
120
Troubleshooting by Indication on the Remote Controller
120
A1" Indoor Unit: PC Board Defect
121
A3" Indoor Unit: Malfunction of Drain Level Control System (33H)
122
A6" Indoor Unit: Fan Motor (M1F) Lock, Overload
124
A7" Indoor Unit: Malfunction of Swing Flap Motor (MA)
125
A9" Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (20E)
127
AF" Indoor Unit: Drain Level above Limit
129
AJ" Indoor Unit: Malfunction of Capacity Determination Device
130
C4" Indoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger
131
C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes
132
C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air
133
CA" Indoor Unit: Malfunction of Thermistor for Discharge Air
134
CJ" Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller
135
E1" Outdoor Unit: PC Board Defect
136
E3" Outdoor Unit: Actuation of High Pressure Switch
137
E4" Outdoor Unit: Actuation of Low Pressure Switch
138
E5" Compressor Motor Lock
139
E7" Malfunction of Outdoor Unit Fan Motor
140
E9" Outdoor Unit: Malfunction of Moving Part of Electronic Expansion
142
F3" Outdoor Unit: Abnormal Discharge Pipe Temperature
144
H9" Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T)
145
J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3T)
146
J5" Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe
147
J6" Outdoor Unit: Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger
148
J9" Malfunction of Receiver Gas Pipe Thermistor (R5T)
149
JA" Outdoor Unit: Malfunction of High Pressure Sensor
150
JC" Outdoor Unit: Malfunction of Low Pressure Sensor
151
L4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
152
L5" Outdoor Unit: Inverter Compressor Abnormal
153
L8" Outdoor Unit: Inverter Current Abnormal
154
L9" Outdoor Unit: Inverter Start up Error
155
LC" Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board
156
LC" Outdoor Unit: Malfunction of Transmission between Inverter and con
156
P4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor
158
P4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
158
PJ" Outdoor Unit: Faulty Combination of Inverter and Fan Driver
159
UO" Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure
160
U2" Power Supply Insufficient or Instantaneous Failure
161
U3" Check Operation Not Executed
163
U4" Malfunction of Transmission between Indoor Units and Outdoor Units
164
U5" Malfunction of Transmission between Remote Controller and Indoor Unit
166
U5" Malfunction of Transmission between Remote Controller and Indoor
166
U8" Malfunction of Transmission between Master and Slave Remote Controllers
167
U8" Malfunction of Transmission between Master and Slave Remote con
167
U9" Malfunction of Transmission between Indoor and Outdoor Units in the same System
168
UA" Excessive Number of Indoor Units
170
UC" Address Duplication of Central Remote Controller
171
UE" Malfunction of Transmission between Central Remote Controller and Indoor Unit
172
UE" Malfunction of Transmission between Central Remote Controller and
172
UF" Refrigerant System Not Set, Incompatible Wiring/Piping
174
UH" Malfunction of System, Refrigerant System Address Undefined
175
Troubleshooting by Indication on the Centralized Remote Controller
176
UE" Malfunction of Transmission between Centralized Remote Controller and Indoor Unit
176
Troubleshooting by Indication on the Centralized Remote Controller.166
176
UE" Malfunction of Transmission between Centralized Remote Controller
176
M1" PC Board Defect
177
M8" Malfunction of Transmission between Optional Controllers for Centralized Control
178
M8" Malfunction of Transmission between Optional Controllers for Cen
178
MA" Improper Combination of Optional Controllers for Centralized Control169
179
MA" Improper Combination of Optional Controllers for Centralized Control
179
MC" Address Duplication, Improper Setting
181
Troubleshooting by Indication on the Unified ON/OFF Controller
182
Operation Lamp Blinks
182
Display "Under Host Computer Integrate Control" Blinks (Repeats Single Blink)
184
Display "Under Host Computer Integrate Control" Blinks (Repeats Single Blink)174
184
Display "Under Host Computer Integrate Control" Blinks
184
Display "Under Host Computer Integrate Control" Blinks (Repeats Double Blink)
187
Troubleshooting (OP: Schedule Timer)
188
UE" Malfunction of Transmission between Central Remote Controller and Indoor Unit
188
UE" Malfunction of Transmission between Central Remote Controller and
188
M1" PC Board Defect
190
M8" Malfunction of Transmission between Optional Controllers for Centralized Control
191
M8" Malfunction of Transmission between Optional Controllers for Cen
191
MA" Improper Combination of Optional Controllers for Centralized Control182
192
MA" Improper Combination of Optional Controllers for Centralized Control
192
MC" Address Duplication, Improper Setting
194
Check
195
Part 8 Appendix
197
Piping Diagrams
198
Outdoor Unit
198
Indoor Unit
199
Wiring Diagrams for Reference
202
Outdoor Unit
202
Indoor Unit
203
Thermistor Resistance / Temperature Characteristics
208
Pressure Sensor
210
Part 9 Precautions for New Refrigerant (R410A)
211
Precautions for New Refrigerant (R410A)
212
Outline
212
Service Tools
214
Index
221
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