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4MKD90BVM
Daikin 4MKD90BVM User Manual
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Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)
Si12-411A
242
Removal Procedure
2.
Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)
2.1
Removal of
Outer Panels
P
ro
c
ed
u
r
e
Warning
Be sur
e to wait 10 minutes
or mo
re aft
er turni
ng off al
l power suppli
es
before di
sassem
bl
ing work.
Step
Procedure
Points
1
External
appearance.
2
Rem
ove 4 screws of
the t
op panel and 6
screws of t
he front
panel.
3
Rem
ove 4 screws of
the di
scharge outl
et
gr
ill.
4
Rem
ove 2 screws of
the pi
ping cover.
252
254
Table of Contents
Table of Contents
3
Introduction
8
Safety Cautions
8
Part 1 List of Functions
12
List of Functions
13
Cooling Only Models
13
Heat Pump Models
19
Part 2 Specifications
29
Specifications
29
Indoor Units - Cooling Only
29
Outdoor Units - Cooling Only
41
Indoor Units - Heat Pump
47
Outdoor Units - Heat Pump
62
Part 3 Printed Circuit Board Connector Wiring Diagram
68
Printed Circuit Board Connector Wiring Diagram
69
Wall Mounted Type 20/25/35 Class
69
Wall Mounted Type 50/60/71 Class
72
Duct Connected Type
74
Floor / Ceiling Suspended Dual Type
75
Floor Standing Type
77
Outdoor Units
80
Part 4 Function and Control
82
Main Functions
83
Frequency Principle
83
Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing
85
Fan Speed Control for Indoor Units
86
Programme Dry Function
87
Automatic Operation
88
Night Set Mode
89
Intelligent Eye
90
Home Leave Operation
92
Inverter Powerful Operation
93
Other Functions
94
Function of Main Structural Parts
96
Main Structural Parts
96
Function of Thermistor
97
Control Specification
101
Mode Hierarchy
101
Frequency Control
102
Controls at Mode Changing / Start-Up
104
Discharge Pipe Control
105
Input Current Control
105
Freeze-Up Protection Control
106
Heating Peak-Cut Control
106
Fan Control
107
Moisture Protection Function 2
107
Defrost Control
108
Low Hz High Pressure Limit
109
Electronic Expansion Valve Control
109
Malfunctions
114
Forced Operation Mode
115
Wiring-Error Check
116
Additional Function
118
Part 5 System Configuration
120
System Configuration
121
Operation Instructions
121
System Configuration Part
121
Instruction
122
Contents and Reference Page
122
Safety Precautions
123
Names of Parts
125
Preparation before Operation
137
AUTO · DRY · COOL · HEAT · FAN Operation
140
Adjusting the Air Flow Direction
142
POWERFUL Operation
148
OUTDOOR UNIT SILENT Operation
149
HOME LEAVE Operation
150
INTELLIGENT EYE Operation
152
TIMER Operation
156
Note for Multi System
158
Care and Cleaning
160
Troubleshooting
170
Part 6 Service Diagnosis
174
Caution for Diagnosis
175
Troubleshooting with the Operation Lamp
175
Problem Symptoms and Measures
177
Service Check Function
178
Code Indication on the Remote Controller
179
Error Codes and Description of Fault
179
Troubleshooting
180
Indoor Units
180
Outdoor Units
181
Indoor Unit PCB Abnormality
182
Freeze-Up Protection Control or High Pressure Control
183
Fan Motor or Related Abnormality
185
Thermistor or Related Abnormality (Indoor Unit)
188
Shutter Drive Motor / Shutter Limit Switch Abnormality
189
Signal Transmission Error (between Indoor and Outdoor Units)
190
Unspecified Voltage (between Indoor and Outdoor Units)
191
Freeze-Up Protection Control
192
OL Activation (Compressor Overload)
194
Compressor Lock
195
DC Fan Lock
196
Input over Current Detection
197
Four Way Valve Abnormality
199
Discharge Pipe Temperature Control
201
Position Sensor Abnormality
202
CT or Related Abnormality
203
Thermistor or Related Abnormality (Outdoor Unit)
205
Electrical Box Temperature Rise
207
Radiation Fin Temperature Rise
209
Output over Current Detection
211
Insufficient Gas
213
Low-Voltage Detection
215
Anti-Icing Function in Other Rooms / Unspecified Voltage (between Indoor and Outdoor Units)
216
Check
217
How to Check
217
Part 7 Removal Procedure
228
Outdoor Unit (80 / 90 Class)
229
Removal of Outer Panels
229
Removal of Propeller Fans
232
Removal of Electrical Box
233
Removal of PCB
240
Removal of Fan Motor
243
Removal of Electronic Expansion Valve and Thermistor
245
Removal of Sound Insulation and Reactor
246
Removal of Shunt
248
Removal of Solenoid Valve and Four Way Valve
249
Removal of Compressor
251
Outdoor Unit (50 / 52 / 58 / 68 / 75 Class)
253
Removal of Outer Panels
253
Removal of Electrical BOX
254
Removal of PCB
258
Removal of Fan Motor
261
Removal of Sound Insulation
262
Removal of Four Way Valve Coil, Solenoid Valve Coil
263
Electronic Expansion Valve Coil and Thermistor
263
Removal of Four Way Valve, Solenoid Valve and Shunt
265
Removal of Solenoid Valve and Shunt
266
Removal of Compressor
267
Part 8 Others
268
Others
269
Test Run from the Remote Controller
269
Jumper Settings
270
Part 9 Appendix
272
Piping Diagrams
273
Indoor Units
273
Outdoor Units
277
Wiring Diagrams
284
Indoor Units
284
Outdoor Units
287
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Daikin 4MKD90BVM Specifications
General
Brand
Daikin
Model
4MKD90BVM
Category
Air conditioning
Language
English
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