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RQCEQ280~848PY1
Daikin RQCEQ280~848PY1 Manuals
Manuals and User Guides for Daikin RQCEQ280~848PY1. We have
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Daikin RQCEQ280~848PY1 manual available for free PDF download: Service Manual
Daikin RQCEQ280~848PY1 Service Manual (231 pages)
R-410A Heat Pump 50Hz and R-410A Heat Recovery 50Hz
Brand:
Daikin
| Category:
Heat Pump
| Size: 8.51 MB
Table of Contents
Table of Contents
2
Introduction
5
Safety Cautions
5
Preface
9
Part 1 General Information
10
Model Names of Indoor / Outdoor Units
11
External Appearance
12
Outdoor Units
12
Combination of Outdoor Units
13
Model Selection
14
Part 2 Specifications
15
Specifications
16
Outdoor Units
16
BS Units
25
Part 3 Refrigerant Circuit
27
Refrigerant Circuit
28
Rqyq140 · 180Py1, Rqeq140 ~ 212Py1
28
Refrigerant Circuit Part
28
BS Unit
30
Functional Parts Layout
32
Rqyq140 · 180Py1, Rqeq140 ~ 212Py1
32
Refrigerant Flow for each Operation Mode
33
Rqyq140 · 180Py1
33
Refrigerant Circuit
34
Heating Operation
35
Rqceq280 ~ 848Py1
36
Cooling Oil Return Operation
37
Part 4 Function
43
Function General
44
Operation Mode
44
Symbol
45
Detailed Control Functions
46
Stop Operation
46
Standby
46
Rotation Control
46
Startup Control
47
Normal Operation
48
Compressor Pi Control
49
Electronic Expansion Valve Pi Control
53
Protection Control
56
Low Pressure Protection Control
57
Discharge Pipe Protection Control
59
Inverter Protection Control
60
Special Control
61
Emergency Operation
69
Part 5 Test Operation
70
Test Operation
71
Procedure and Outline
71
Check Operation
74
Checking in Normal Operation
77
Field Setting from Outdoor Unit
78
Part 6 Troubleshooting
101
Symptom-Based Troubleshooting
103
Troubleshooting by Remote Controller
106
The INSPECTION / TEST Button
106
Self-Diagnosis by Wired Remote Controller
107
Remote Controller Service Mode
108
Test Run Mode
111
Remote Controller Self-Diagnosis Function
111
E1 " Outdoor Unit: PCB Defect
119
E2 " Outdoor Unit: Actuation of High Pressure Switch
120
E3 " Outdoor Unit: Actuation of High Pressure Switch
121
E4 " Outdoor Unit: Actuation of Low Pressure Sensor
123
E5 " Outdoor Unit: Inverter Compressor Motor Lock
125
E7 " Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
127
E9 " Outdoor Unit: Malfunction of Electronic
130
Expansion Valve Coil (Y1E~Y3E)
130
F3 " Outdoor Unit: Abnormal Discharge Pipe Temperature
132
F4 " Outdoor Unit: Humidity Alarm
134
F9 " Outdoor Unit : Malfunction of BS Unit Electronic Expansion Valve
136
Expansion Valve
136
H7 " Outdoor Unit: Abnormal Outdoor Fan Motor Signal
138
H9 " Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air
140
J3 , J4 , J5 , J6 , J7 , J8 , J9 " Outdoor Unit: Malfunction
141
Of Outdoor Unit Thermistor
141
Outdoor Unit Thermistor
141
JA " Outdoor Unit: Malfunction of High Pressure Sensor
143
JC " Outdoor Unit: Malfunction of Low Pressure Sensor
145
L1 " Outdoor Unit: Malfunction of Inverter PCB
147
L4 " Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
149
L5 " Outdoor Unit: Momentary Overcurrent of Inverter Compressor
151
L8 " Outdoor Unit: Momentary Overcurrent of Inverter Compressor
153
L9 " Outdoor Unit: Inverter Compressor Starting Failure
155
LC " Outdoor Unit: Malfunction of Transmission between Inverter and Main PCB
158
P1 " Outdoor Unit: Inverter Over-Ripple Protection
160
P4 " Outdoor Unit: Malfunction of Inverter Radiating Fin
162
Temperature Rise Sensor
162
PJ " Outdoor Unit: Faulty Field Setting after Replacing Main PCB or Faulty Combination of PCB
163
U1 " Reverse Phase, Open Phase
165
U2 " Outdoor Unit: Power Supply Insufficient or Instantaneous Failure
166
U3 " Outdoor Unit: Check Operation Is Not Executed
169
U4 " Malfunction of Transmission between Indoor Units
171
And Outdoor Units
171
U7 " Outdoor Unit: Transmission Failure (Across Outdoor Units)
174
U8 " Indoor Unit: Malfunction of Transmission between Main and Sub Remote Controllers
181
U9 " Indoor Unit: Malfunction of Transmission between Indoor and Outdoor Units in the same System
182
UA " Improper Combination of Indoor, BS and Outdoor Units, Indoor Units and Remote Controller
183
UC " Address Duplication of Centralized Controller
191
UE " Malfunction of Transmission between Centralized Controller and Indoor Unit
192
UF " System Is Not Set yet
195
UH " Malfunction of System, Refrigerant System Address Undefined
196
Part 7 Appendix
214
Piping Diagrams
215
Outdoor Unit
215
BS Unit
216
Wiring Diagrams for Reference
219
Outdoor Unit
219
BS Unit
220
Option List
223
Option Lists (Outdoor Unit)
223
Example of Connection (R-410A Type)
225
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