Sign In
Upload
Download
Table of Contents
Contents
Add to my manuals
Delete from my manuals
Share
URL of this page:
HTML Link:
Bookmark this page
Add
Manual will be automatically added to "My Manuals"
×
Bookmark added
×
Added to my manuals
Manuals
Brands
Fujitsu Manuals
Air Conditioner
Airstage VR-II Series
Service manual
Table Of Contents - Fujitsu Airstage VR-II Series Service Manual
Hide thumbs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
Table Of Contents
247
page
of
247
Go
/
247
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
Table of Contents
Service Manual
1
Table Of Contents
2
Test Run
5
Execution Procedure And Execution Precautions
7
Before Execution
7
Transmission Wire Installation Inspection
8
Check Items Before Power On
9
Power Source Inspection Sheet
9
Outdoor Unit Field Setting Inspection Sheet
10
Indoor Unit Field Setting Inspection Sheet
10
Rb Unit Field Setting Inspection
11
Single Type Rb Unit
11
Multi Type Rb Unit
11
Transmission Wire Installation Inspection Sheet
12
Piping Installation Inspection Sheet
15
Refrigerant Charge Amount Inspection Sheet
17
3-Way Valve Opening Inspection Sheet
17
Check Items After Power On
18
Overview Of System Operation Check Procedure
18
Power Source Check Sheet
18
Error Indication Check Sheet
18
Installed Unit And Their Addresses Check Sheet
19
Transmission Line Connection Check
20
Operation Check Sheet
21
Test Run Operation
22
Test Run From Outdoor Unit Pc Board
22
Switch Position
22
Test Run Setting
22
Test Run From Remote Controller
23
Standard Wired Remote Controller
23
Standard Wireless Remote Controller
23
Touch Panel Controller
24
Central Remote Controller
24
Setting Screen
24
Detail Setting Screen
24
2-Wire Type Wired Remote Controller
25
Monitor Mode Screen
25
Main Manu Screen
25
Test Run Screen
25
Test Run Control
26
Compact Cassette Type
26
Ceiling Type
26
Compact Wall Mounted Type
26
Field Setting And Monitor Mode List For Outdoor Unit
27
Field Setting / Function Setting For Indoor Unit
31
Field Setting / Function Setting For Outdoor Air Unit
33
Outdoor Unit Operation Control
34
Refrigerant Circuit
35
Refrigerant Circuit For Outdoor Air Unit
36
Outdoor Air Unit
36
Input / Output List
37
Heat Recovery Operation Control
38
Operation Mode Selection And Controlling
38
Ompressor Operation
38
Operation / Stop Condition
38
Compressor Speed Control
39
Speed Range And Controlling
39
Cold Start Start Process
39
Capacity Control
40
Capacity Of Compressor Operation
40
Target Low-Pressure And High-Pressure Control
40
2 Outdoor Units
40
Compressor Sequence Operation
41
Starting Sequence Condition
41
Heat Exchanger Capacity Control
42
Cooling Main / Heating Main
42
Heat Exchanger Capacity Shift Controlling
42
Fan Control
43
Cooling / Cooling Main Operation
43
Intermittent Fan Mode
44
Heating / Heating Main Operation
44
Expansion Valve Control
45
The Eev Controls The Flow Of Refrigerant
45
Special Operation
46
Oil Recovery Operation
46
Pre-Heat Operation
46
Defrost Operation Control
47
Defrosting Start Condition
47
Defrosting End Condition
47
Operating State Of Each Part During Defrosting Operation
48
All Compressors Sart The Operation In Defrosting
48
Low Noise Mode
49
Setting And Corresponding Operations
49
Low Noise Mode And Operation Contents
49
Automatic Switching
49
Operation Contents
50
Snow Falling Protection Fan Mode -Default Setting
50
Protective Function
51
Discharge Temperature Protection
51
Protection Controlling Range In Cooling Mode
52
Protection Controlling Range In Heating Mode
52
High Pressure Protection
53
Protection Controlling Range In Cooling Operaing Mode
54
Protection Controlling Range In Heating Operaing Mode
54
Low Pressure Protection
55
Protection Controlling Range In Cooling / Heating Operaing Mode
55
Heatsink Temperature Protection
56
Compressor Temperature Protection
56
Heat - Ex.1(2) Gas Temp. Abnormal Stop
56
Over Current Protection
57
Compressor Frequency Maximum Setting Protection
57
Compressor Compress Ratio Protection
57
Fan Motor, Motor Driver Abnormal Stop Protection
58
Eev Coil Abnormal Stop
58
Indoor Unit Operation
59
Fan Speed Setting
61
Auto" Position
61
Dry Operation
61
Fan Operation
61
Master Control
62
Operation Mode Control
62
Cool, Dry And Heat Mode
62
Stop Mode
62
Priority Mode
63
Priority Mode Decision Methods
63
Opposite Operation Mode
63
Operation Mode Control For Outdoor Air Unit
64
Auto Changeover Heating / Cooling Operation
66
Function Available Indoor Unit
66
Auto Changeover Operation
66
Cooling Operation For Outdoor Air Unit
67
Auto Changeover Cooling / Dry Operation
68
Custom Auto Heating / Cooling Operation
69
Cool" Position
70
Heat" Position
70
"Cool" Position For Outdoor Air Unit
71
"Heat" Position For Outdoor Air Unit
71
Louver Control
72
Adjusting The Direction Of Air Circulation
72
Universal Floor/Ceiling Type
72
Cassette Type
72
Horizontal Air Direction Adjustment
73
Large Ceiling Type
73
Wall Mounted Type
73
Swing Operation
73
Instructions Are Applicable To "Large Ceiling Type"
74
About Vertical Airflow Swing Operation
74
To Select Horizontal Airflow Swing Operation
74
To Stop Horizontal Airflow Swing Operation
74
Electronic Expansion Valve Control
75
Drain Pump Operation
75
Special Control
75
Room Temperature Control
75
Drain Pump Operation For Outdoor Air Unit
76
Automatic Operatic Control
76
Discharge Airflow Temperature Control
76
When Starting Up
76
Function
77
Auto Restart
77
Freeze Prevention Control
77
Oil Recovery Operation / Defrost Operation
77
Outdoor Temperature Protected Operation For Outdoor Air Unit
78
Cool Operation
78
Heat Operation
78
Position Of Solenoid Coil
79
Position Of Solenoid Valve
79
Rb Unit Operation
79
Single Type
79
Pcbs Layout
80
Pcb Component
80
Solenoid Valve Controlling
81
Refrigerant Flow
81
Open / Close Operation In Operation
81
Open / Close Operation In Special Operation
81
Trouble Shooting
83
Normal Operation
85
Indoor Unit Display
85
Outdoor Unit Display
86
Abnormal Operation
87
Error Code Display
87
Indoor Unit Network Communication Error
87
Error Indication Flashing Pattern
88
Error Transition
88
Remote Controller Display
89
Wired Remote Controller
89
Group Remote Controller
89
Trouble Shooting Index - Error Code List
90
Trouble Shooting Index - No Error Code
91
Trouble Level Of System
92
System Condition When Outdoor Unit Error Is Occurred
92
Error Code Which Manual Error Release Will Be Required
92
Error History Mode
93
Select The Error History Number
93
Check The Detail Of The Error History
93
Trouble Shooting With Error Code
94
Check The Connection Of Terminal
94
Check Remote And Controller Pcb
94
Outdoor Unit Error Method
97
Noise, Momentary Open, Voltage Drop
97
Check The Power Supply
97
Check The Number Setting Of Outdoor Units
97
Check If Any Outside Cause Such As Voltage Drop Or Noise
100
Check The Connection
100
Check Communication Pcb
100
Check Controller Pcb
100
Check The Indoor Unit Or Rb Unit Power Supply
101
Check The Communication Line Connection
101
Check The Terminal Resistor Setting
101
Check The Communication Pcb
101
Transmission Pcb Connection Error
102
Reset The Power
102
Check Connection
102
Replace Communication Pcb
102
Indoor Unit Error Method
103
Wire Installation
104
Wrong Rcgroup Setting
104
Check Indoor Unit Controller Pcb
104
After Indoor Unit Auto Adress Setting
106
Check The Indoor Unit Power Supply
106
Check The Indoor Unit Number Connection
106
After Rb Unit Auto Adress Setting
106
Signal Amplifier Auto Address Error
107
Check Signal Amplifier Unit Power Supply
107
Check The Signal Amplifier Number Connection
107
Check Noise, Momentary Open, Voltage Drop
107
Detective Actuators
108
Reset Power Supply
110
Check Installation Condition
110
Check Outside Cause (Voltage Drop Or Noise, Etc.)
110
Check Connection Of Electric Components
110
Inlet Air Temp. Sensor Error
114
Check Connection Of Connector
114
Remove Connector And Check Sensor Resistance Value
114
Indoor Unit Heat Ex. Inlet Temp. Sensor Error
115
Check Voltage Of Controller Pcb (Dc5.0V)
115
Indoor Unit Heat Ex. Outlet Temp. Sensor Error
116
Indoor Unit Controller Pcb Circuit
116
Heat Exchanger Outlet Temp. Sensor
116
Indoor Unit Fan Motor 1 Rotation Speed Error
117
Check Rotation Of Fan
117
Coil 1 (Expansion Valve ) Error
118
Indoor Unit Controller Pcb
118
Indoor Unit Drain Pump Error
119
Indoor Unit Controller Pcb Circuit Float Switch
119
Check Drain Pipe Installation
119
Check Drain Pipe Blockage
119
Outdoor Unit Reverse Phase, Missing Phase Wire Error
120
Outdoor Unit Main Pcb
120
Outdoor Unit Eeprom Access Error
121
Inverters Communication Error
122
Turn The Power On Again
122
Noise
122
Eeprom Data Corrupted Error
123
Inverter Error
124
Inverter Pcb
124
Inverter Pcb Short Interruption
125
Outdoor Unit Transmission Pcb Parallel Communication Error
127
Discharge Temp. Sensor 1 Error
128
Discharge Temp. Sensor 1
128
Compressor Temp Sensor 1 Error
129
Check The Connector Connection And Cable Open
129
Check Voltage Of Main Pcb
129
Heat Ex.1 Gas Temp Sensor Error
130
Heat Ex.1 Liquid Temp. Sensor
131
Heat Ex.2 Gas Temp Sensor Error
132
Heat Ex.2 Liquid Temp. Sensor
133
Outdoor Temp Sensor Error
134
Suction Gas Temp Sensor Error
135
Heat Sink Temp Sensor Error
136
Heat Sink Temp. Sensor
136
Sub-Cool Heat Ex. Gas Outlet Temp Sensor Error
137
Liquid Pipe Temp. Sensor 1 Error
138
Liquid Pipe Temp. Sensor 2 Error
139
Current Sensor 1 Abnormal
140
Discharge Pressure Sensor Error
141
Suction Pressure Sensor Error
142
Suction Pressure Sensor
142
High Pressure Switch 1 Error
143
Inverter Compressor Start Up Error
144
Trip Detection
145
Compressor Motor Loss Of Synchronization
146
Outdoor Unit Fan Motor Lock Error
147
Fan Rotation State Check
147
Fan Motor Defective
147
Replace Driver Pcb
147
Outdoor Unit Fan Motor Temp. Abnormal
148
Driver Pcb
148
Check Fan Rotation State
148
Check The Static Pressure
148
Outdoor Unit Fan Motor Driver Abnormal
149
Check The Wiring Connection
149
Replace Fan Motor
149
Coil 1 (Eev) Error
150
Coil 2 (Eev) Error
151
Coil 3 (Eev) Error
152
Slave Outdoor Unit Error
153
Discharge Tempreture 1 Abnormal
154
Compressor 1 Temperature Abnormal
155
Compressor Temp. Sensor 1
155
High Pressure Abnormal
156
Cooling/ Cooling Main Operation
156
Heating/ Heating Main Operation
156
High Pressure Protection 1
157
High Pressure Switch 1
157
Low Pressure Abnormal
158
Heat Ex.1 Gas Temp. Error
159
Heat Ex.1 Gas Temp. Sensor (Th7)
159
Heat Ex.2 Gas Temp. Error
160
Heat Ex.2 Gas Temp. Sensor (Th8)
160
Outdoor Unit Heat Sink Tempreture Abnormal
161
Rb Unit Eeprom Access Abnormal
162
Rb Unit Controller Pcb
162
Rb Unit Transmission Pcb2 Parallel Communication Error
163
Rb Unit Controller Pcb Circuit
163
Rb Unit Communication Pcb
163
Initial Setting Error
164
Trouble Shooting No Error Code
165
Indoor Unit - No Power
165
Rb Unit - No Power
168
No Operation (Power Is On)
169
Check Indoor, Rb Unit And Outdoor Installation Condition
169
No Cooling / No Heating
170
Abnormal Noise
171
Diagnosis Method When Abnormal Noise Is Occurred
171
Water Leaking
172
Diagnosis Method When Water Leak Occurs
172
Diagnosis Method When Water Is Spitting Out
172
Outdoor Air Unit - No Power
173
Indoor Unit Power Supply Error For Fan Motor 1 (2)
174
Indoor Unit Suction Air Temp. Thermistor Error
175
Discharge Air Temp. Thermistor
176
Indoor Unit Fan Motor 2 Rotation Speed Error
177
Indoor Unit Power Supply Error Of Ac24V System
178
Service Information
179
Network Communication Abnormal
179
Basic Trouble Shooting Procedure
179
Rb Unit Abnormal (No Cooling, No Heating, Abnormal Noise)
180
Pipe Temperature In Cooling Mode
180
Color Of Connector
180
Back Up Operation
181
Method Of Backup Operation
181
Work Procedure After The Backup Operation
183
Refrigerant Shortage At The Backup Operation
183
How To Judge, When Refrigerant Is Deficient
183
On Cooling Operation
183
How To Respond, When Refrigerant Is Deficient
184
Refrigerant Charging After The Compressor Replacement
184
Service Parts Information
185
Inverter Compressor
186
Check Winding Resistance
186
Main Pcb
187
Filter Pcb (Main)
187
Filter Pcb (Inv)
188
Fan Driver Pcb
189
Filter Pcb(Inv)
190
Ipm
191
Check Point 2
191
3-Phase Diode Bridge
192
Appearance Check
192
Electric Check
192
Reactor
193
Resistor, Cement
194
Terminal
195
Magnetic Relay
195
Indoor Unit Electronic Expansion Valve
196
Outdoor Unit Electronic Expansion Valve
197
Outdoor Unit Solenoid Valve
200
Check Operation Of Sv3
201
Check Opening & Closing Operation Of Sv4
201
4-Way Valve 1 (2)
202
Indoor Unit Ac Fan Motor
203
Indoor Unit Fan Motor
204
Outdoor Unit Fan Motor
204
Pressure Switch
206
Thermistor
206
Rb Unit Solenoid Valve
207
Upper Side
207
Appending Data (Unit)
208
Outdoor Unit
210
Symbol Description
211
Rb Unit
211
Wiring Diagram
214
High Static Pressure Duct Type
218
Floor / Ceiling Type
219
Vertical Air Handler
229
Disassembly Process
230
Indoor Unit Transmisson Pcb Removal
231
Indoor Unit Transmisson Pcb Install
231
Panel Top Removal
232
Control Box Cover Removal
232
Layout Plan In Control Box
233
Screw Tightening Torque
233
Main Pcb Removal
234
Inverter Pcb Removal
235
Fan Driver Pcb Removal
236
Panel Btm Removal
237
Control Box Open
237
Thermistors Removal
238
Solenoid Coils
238
Eev Coils Removal
238
Pressure Sensors Removal
238
Fan Motor Removal
239
Comp Box Cover Removal
239
Compressor Removal
240
Procedure For Compressor Removal
240
Remove The Compressor Cover (Top)
241
Remove The Compressor Cover (Outside),
241
Procedure For Compressor Installation
242
Precautions For Installation Of Compressor
242
Precautions For Exchange Of 4 Way Valve A Assy
243
Fusible Plug
243
Location Of Fusible Plug
243
Precautions For When Replacing Refrigerant-Cycle-Parts
244
Previous
Page
1
...
246
247
Show Quick Links
Quick Links:
Service Manual
Hide quick links:
Permanently
Temporary
Cancel
Advertisement
Table of Contents
Troubleshooting
Trouble shooting
83
Trouble shooting index - Error code List
90
Trouble shooting index - No Error code
91
Trouble shooting with Error code
94
Trouble shooting no error code
165
Service information
179
Related Manuals for Fujitsu Airstage VR-II Series
Air Conditioner Fujitsu Airstage J-II Series Design & Technical Manual
Small vrf system (978 pages)
Air Conditioner Fujitsu AIRSTAGE K00250LW Addendum
Outdoor unit (28 pages)
Air Conditioner Fujitsu AIRSTAGE ARUL7TLAV Installation Manual
(20 pages)
Air Conditioner Fujitsu AIRSTAGE ARUM24TLAV Installation Manual
(18 pages)
Air Conditioner Fujitsu ARUV12TLAV Installation Manual
Indoor unit (duct type) (17 pages)
Air Conditioner Fujitsu AIRSTAGE ABUA30TLAV Installation Manual
Indoor unit (ceiling type) (17 pages)
Air Conditioner Fujitsu GENERAL AIRSTAGE AAUA48TLAV Installation Manual
(16 pages)
Air Conditioner Fujitsu AIRSTAGE AAUA96TLAV Installation Manual
Indoor unit (15 pages)
Air Conditioner Fujitsu Airstage AUUA4TLAV1 Installation Manual
Indoor unit (15 pages)
Air Conditioner Fujitsu Airstage ARUH36TLAV Installation Manual
Indoor unit duct type (15 pages)
Air Conditioner Fujitsu Airstage UTP-RU01AH Installation Manual
(14 pages)
Air Conditioner Fujitsu AIRSTAGE AUUA7TLAV Operating Manual
(8 pages)
Air Conditioner Fujitsu Airstage ASUA7TLAV Operating Manual
(6 pages)
Air Conditioner Fujitsu AIRSTAGE ARUV12TLAV Operating Manual
(6 pages)
Fan Fujitsu Airstage ARUM30TLAV Operating Manual
Indoor unit (duct type) (5 pages)
Air Conditioner Fujitsu AIRSTAGE ARUH48TLAV Operating Manual
(5 pages)
Related Content for Fujitsu Airstage VR-II Series
ASTG18KMTC Table Of Contents
Fujitsu ASTG18KMTC
AUYF18LBL Table Of Contents
Fujitsu AUYF18LBL
AUYA45LCLU Table Of Contents
Fujitsu AUYA45LCLU
ARG25ALC Table Of Contents
Fujitsu ARG25ALC
AOYG36LATT Table Of Contents
Fujitsu AOYG36LATT
ARG45ALC3 Table Of Contents
Fujitsu ARG45ALC3
AOYG30LAT4 Table Of Contents
Fujitsu AOYG30LAT4
AUU18RCLX Table Of Contents
Fujitsu AUU18RCLX
AOU24RLXFZ Table Of Contents
Fujitsu AOU24RLXFZ
AU*G36LRLA Table Of Contents
Fujitsu AU*G36LRLA
ASY9LSACW Table Of Contents
Fujitsu ASY9LSACW
Airstage J-II Table Of Contents
Fujitsu Airstage J-II
Airstage V series Table Of Contents
Fujitsu Airstage V series
Airstage V-II Table Of Contents
Fujitsu Airstage V-II
R407C Table Of Contents
Fujitsu R407C
Airstage AUXB07L Table Of Contents
Fujitsu Airstage AUXB07L
This manual is also suitable for:
Airstage vr-ii auua9tlav
Airstage vr-ii auua18tlav
Airstage vr-ii auua7tlav
Airstage vr-ii auua24tlav
Airstage vr-ii auub18tlav
Airstage vr-ii auub24tlav
...
Show all
Airstage vr-ii auub36tlav
Airstage vr-ii auub30tlav
Airstage vr-ii arul7tlav
Airstage vr-ii auua12tlav
Airstage vr-ii arul12tlav
Airstage vr-ii arul9tlav
Airstage vr-ii arul14tlav
Airstage vr-ii arul18tlav
Airstage vr-ii arum30tlav
Airstage vr-ii arum24tlav
Airstage vr-ii arum36tlav
Airstage vr-ii aruh36tlav
Airstage vr-ii aruh48tlav
Airstage vr-ii aruh60tlav
Airstage vr-ii abua14tlav
Airstage vr-ii abua12tlav
Airstage vr-ii abua18tlav
Airstage vr-ii abua24tlav
Airstage vr-ii auua14tlav
Airstage vr-ii abua36tlav
Airstage vr-ii asua12tlav
Airstage vr-ii asua7tlav
Airstage vr-ii abua30tlav
Airstage vr-ii asua9tlav
Airstage vr-ii asub18tlav
Airstage vr-ii asub24tlav
Airstage vr-ii asua14tlav
Airstage vr-ii aoua96tlbv
Airstage vr-ii aoua72tlbv
Airstage vr-ii aoua120tlbv
Airstage vr-ii utp-ru01ah
Airstage vr-ii utp-ru01bh
Airstage vr-ii utp-ru01ch
Airstage vr-ii utp-ru04bh
Airstage vr-ii aaua48tlav
Airstage vr-ii aaua96tlav
Airstage vr-ii aaua72tlav
Airstage vr-ii aruv12tlav
Airstage vr-ii aruv18tlav
Airstage vr-ii aruv24tlav
Airstage vr-ii aruv36tlav
Airstage vr-ii aruv30tlav
Airstage vr-ii aruv60tlav
Airstage vr-ii aruv48tlav
Table of Contents
Print
Rename the bookmark
Delete bookmark?
Delete from my manuals?
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL