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MXZ-2A52VA
Service Manual
Mitsubishi MXZ-2A52VA Service Manual Page 159
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Table of contents
TROUBLESHOOTING
BOOKMARKS
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159
OPERA
TING PROCEDURE
PHOTOS
5. Removing the reactor
(1) Remove the top panel (Photo 1).
(2) Disconnect the reactor lead wire.
(3) Remove the screws of the reactor
, and remove the reactor
.
Photo 8
Screws of the reactor
1
2
...
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...
191
192
SERVICE MANUAL
1
TECHNICAL CHANGES
2
Description
6
3. Refrigeration oil
7
4. Air purge
7
5. Additional charge
7
2. Refrigerant piping
7
PART NAMES AND FUNCTIONS
8
Indoor units
10
Indoor units combination
11
INDOOR UNITS COMBINATION4
14
MXZ-2A40VA
15
MXZ-2A52VA
16
MXZ-3A54VA
17
MXZ-4A71VA
21
MXZ-5A100VA
39
SPECIFICATION
61
Compressor
62
NOISE CRITERIA CURVES
66
OUTDOOR UNIT
67
MICROPHONE
67
OUTLINES AND DIMENSIONS
68
REQUIRED SPACE
69
1.Installation space
70
2.Service space
70
MXZ-4A71VA
72
WIRING DIAGRAM
75
MXZ-3A54VA
76
REFRIGERANT SYSTEM DIAGRAM
87
R.V. coil
88
OFF
88
ON
88
Refrigerant flow in cooling
88
Refrigerant flow in heating
88
OFF
90
ON
90
R.V. coil
91
MXZ-4A80VA
94
MAX REFRIGERANT PIPING LENGTH
94
PERFORMANCE CURVES
97
, MXZ-2A52VA)
101
(MPa[Gauge])
109
ACTUATOR CONTROL
115
SERVICE FUNCTIONS
116
12-4. AUTO LINE CORRECTING
117
<MXZ-2A>
117
<MXZ-4A80VA
118
, MXZ-5A100VA>
118
TROUBLESHOOTING
120
Lighting
126
MXZ-3A/4A/5A
127
(MXZ-3A54VA, MXZ-4A71VA)/
128
MXZ-3A54VA
129
MXZ-4A71VA
129
MXZ-2A30/2A40/2A52
130
MXZ-3A54/4A71/4A80/5A100
130
LED3 LED2
131
LED1 LED2
131
Check of R.V. coil
132
Check of LEV
133
EMERGENCY OPERATION
134
E4 E5E5 E6 E7 E6 E7E4 E2
135
Check of outdoor fan motor
136
Check of HPS
137
The other cases
137
Check of bus-bar voltage
137
1. Inverter P.C. board
138
Resistance (kΩ)
139
Temperature (°C)
139
MXZ-4A80VA
140
MXZ-5A100VA
140
MXZ-5A100VA
142
5. Outdoor Power board
143
6. Display P.C. board
144
7. Interface P.C. board
144
DISASSEMBLY INSTRUCTIONS
145
OPERATING PROCEDURE
146
1. Removing the compressor
148
OPERATING PROCEDURE PHOTOS
150
14-4. MXZ-4A80VA
154
14-5. MXZ-4A80VA
157
MXZ-2A40VA
160
MXZ-2A52VA
160
15-3. DRAIN SOCKET
163
Indoor unit connecting
167
15-9. ACCESSORY
170
3.0 1.4 600
173
3.0 2.0 200
173
Outdoor unit 42 drain hole
175
Soft vinyl chloride hose of
175
25 mm inside diameter
175
16-12. ACCESSORY
186
MXZ-5A100VA
188
16-15. ACCESSORY
190
OPTIONAL PARTS
192
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