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EKHBRD 016 V1
Daikin EKHBRD 016 V1 User Manual
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ESIE09-08A
Service Manual
Daikin ALTHERMA HT
ERSQ 011/014/016 AA V1, Y1
ERRQ 011/014/016 AA V1, Y1
EKHBRD 011/014/016 AA/AB/AC V1, Y1
R-410A, R-134a
EKHTS(U) 200/260 A, AB, AC
EKBUHAA6 V3, W1
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
3
Introduction
8
Safety Cautions
8
Caution in Repair
8
Cautions Regarding Products after Repair
9
Inspection after Repair
10
Using Icons
11
Using Icons List
11
Preface
12
Part 1 - General Information
13
Model Names of Indoor/Outdoor Units & Tanks
14
Part 2 - Specifications
17
Specifications
18
Outdoor Units
18
Electrical Specifications
19
Indoor Unit
20
Part 3 - Refrigerant Circuit & Functional Parts
23
Refrigerant Circuit
24
Outdoor Unit
24
Indoor Unit
26
Functional Parts Layout
29
Errq 011/014/016 Aav1, Ersq 011/014/016 Aav1
29
Errq 011/014/016 Aay1, Ersq 011/014/016 Aay1
31
Ekhbrd 011/014/016 Aa(V1/Y1)
33
Ekhbrd 011/014/016 Ab/Ac(V1/Y1)
35
Ekhts 200/260 A/Ab/Ac
36
Ekhtsu 200/260 A/Ab/Ac
38
Part 4 - Electrical Circuit
41
Switch Box Layout - Indoor Unit EKHBRD
42
PCB Layout for EKHBRD 011/014/016 AA/AB/AC V1/Y1
46
Main PCB - A1P
46
Control - PCB - A3P
48
Inverter PCB - A4P
50
Filter PCB - A6P
53
Qa Pcb - A5P
55
Inverter Control PCB - Three Phase - A4P
56
Inverter PCB - Three Phase - A5P
58
Digital I/O PCB (Option PCB A7P)
60
Demand PCB (Option PCB A8P)
62
Part 5 - Function
65
Operation Mode
66
Basic Control
67
Normal Operation
67
Compressor PI Control
68
Electronic Expansion Valve PI Control R-410A Circuit
69
Electronic Expansion Valve PI Control R-134A Circuit
69
Special Control
70
Startup Control
70
Defrosting Operation
71
Pump-Down Residual Operation
72
Stopping Operation
73
Protection Control
74
High Pressure Protection Control
74
Low Pressure Protection Control
76
Discharge Pipe Protection Control
78
Inverter Protection Control
79
Other Control
81
Heating Operation Prohibition
81
Inverter Fan Control (Switch Box Fan)
81
Crankcase Heater
81
Outline of Control (Indoor Unit)
82
Freeze Prevention
82
Simultaneous Demand of Space Heating and Domestic Water Heating
83
Part 6 - Test Operation
89
Test Operation
90
Procedure and Outline
90
Air Tight Test and Vacuum Drying
92
Additional Refrigerant Charge
93
Important Information Regarding the Refrigerant Used
94
Procedures for Adding Refrigerant
94
Check Operation
96
Operation When Power Is Turned on
97
Outdoor Unit PC Board Layout
98
Field Setting
99
Field Setting from Remote Control
99
Detailed Explanation of Setting Modes
106
Field Setting from Outdoor Unit
126
Part 7 - Troubleshooting
137
Symptom-Based Troubleshooting
139
Troubleshooting by Remote Control
141
The INSPECTION / TEST Button
141
Self-Diagnosis by Wired Remote Control
142
Operation of the Remote Controller's Inspection / Test Operation Button
143
Remote Control Service Mode
144
Remote Controller Self-Diagnosis Function
146
Troubleshooting by Indication on the Remote Controller
152
A1" Indoor Unit: PC Board Defect
152
A6" Indoor Unit: Pump Error (M1P) or Other Water System Error
153
AE" Indoor Unit: Water Circuit Error
156
AJ" Indoor Unit: Malfunction of Capacity Determination Device
157
C1" Indoor Unit: Failure of Transmission
158
C4" Indoor Unit: Malfunction of Thermistor (R3T) Liquid Thermistor R-410A
160
C5" Indoor Unit: Malfunction of Tank Thermistor (R2T)
161
C9" Indoor Unit: Return Water Thermistor (R4T)
162
CA" Indoor Unit: Leaving Water Thermistor Error (R5T)
163
CJ" Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller
164
E1" Outdoor Unit: PC Board Defect
165
E1" Indoor Unit: PC Board Defect
166
E3" Outdoor Unit: Actuation of High Pressure Switch
167
E3" Indoor Unit: Actuation of High Pressure Switch
169
E4" Outdoor Unit: Actuation of Low Pressure Sensor
172
E4" Indoor Unit: Actuation of Low Pressure Sensor
174
E5" Outdoor Unit: Inverter Compressor Motor Lock
176
E5" Indoor Unit: Inverter Compressor Motor Lock
177
E7" Malfunction of Outdoor Unit Fan Motor
178
E9" Outdoor Unit: Malfunction of Moving Part of Electronic Expansion Valve
180
F3" Outdoor Unit: Abnormal Discharge Pipe Temperature
184
F3" Indoor Unit: Abnormal Discharge Pipe Temperature
185
H9" Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air
186
J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R2T)
187
J3" Indoor Unit: Malfunction of Discharge Pipe Thermistor (R6T)
188
J5" Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for Suction Pipe
189
J5" Indoor Unit: Malfunction of Thermistor (R7T) for Liquid R-134A
190
Outdoor Unit Heat Exchanger
191
Outdoor Unit Liquid Pipe
192
JA" Outdoor Unit: Malfunction of High Pressure Sensor
194
JA" Indoor Unit: Malfunction of High Pressure Sensor
195
JC" Outdoor Unit: Malfunction of Low Pressure Sensor
196
JC" Indoor Unit: Malfunction of Low Pressure Sensor
197
L1" Outdoor Unit: Malfunction of PC Board
198
L1" Indoor Unit: Malfunction of PC Board
199
L4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
200
L5" Outdoor Unit: Inverter Compressor Abnormal
202
R-410A192
202
L5" Indoor Unit: Inverter Compressor Abnormal
203
R-134A193
203
L8" Outdoor Unit: Inverter Current Abnormal
204
L8" Indoor Unit: Inverter Current Abnormal
205
L9" Outdoor Unit: Inverter Start up Error
206
L9" Indoor Unit: Inverter Start up Error
207
Board199
208
LC" Outdoor Unit: Malfunction of Transmission between Inverter and Control
208
PC Board198
209
Board199
209
LH" Indoor Unit: Converter Error
210
P1" Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit
211
P1" Indoor Unit: High Voltage of Capacitor in Main Inverter Circuit
212
PJ" Indoor Unit: Faulty Combination of PCB
213
U2" Power Supply Insufficient or Instantaneous Failure
216
U4" Malfunction of Transmission between Indoor Unit and Outdoor Unit
220
U4" Malfunction of Transmission Indoor Unit
222
U5" Malfunction of Transmission between Remote Control and Indoor Unit
223
U7" Indoor Unit: Malfunction of Transmission Outdoor Unit
224
U8" Malfunction of Transmission between Main and Sub Remote Controls
225
UA" Communication Error between Outdoor Unit and Indoor Unit
226
UF" System Is Not Set yet
227
UH" Malfunction of System, Refrigerant System Address Undefined
228
Part 8 - Appendix
233
Piping Diagrams
234
Outdoor Unit
234
Indoor Unit
236
Switch Box Layout
239
Wiring Diagrams
243
Outdoor Unit
243
Field Wiring Connection Diagram
247
Indoor Unit
248
Thermistor Resistance / Temperature Characteristics
261
Pressure Sensor
264
Method of Replacing the Inverter's Power Transistors Modules
265
External Backup Heater Kit
268
Model Name
268
Main Components
269
Technical Specifications
271
Detailed Explanation of Setting Modes
272
External Backup Heater Control
273
Troubleshooting by Indication on the Remote Controller
275
Troubleshooting: General Symptoms
276
Switch Box Layout
277
Wiring Diagrams
279
Way Valve
283
Build-Up of 3-Way Valve
283
Troubleshooting Overview 3-Way Valve
284
How to Verify if 3-Way Valve Is Installed Correctly
285
Part 9- Precautions for New Refrigerant (R-410A)
289
Precautions for New Refrigerant (R-410A)
290
Outline
290
Refrigerant Cylinders
292
Service Tools
293
4
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Daikin EKHBRD 016 V1 Specifications
General
Brand
Daikin
Model
EKHBRD 016 V1
Category
Air Conditioner
Language
English
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