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Mitsubishi Electric Manuals
Air Conditioner
PURY-(E)P200
Service handbook
Table Of Contents - Mitsubishi Electric PURY-(E)P200 Service Handbook
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Service handbook
(362 pages)
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Table Of Contents
353
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
Table of Contents
Safety Precautions
2
Precautions For Handling Units For Use With R410A
4
Before Installing The Unit
5
Electrical Work
6
Before The Test Run
7
Table Of Contents
8
Read Before Servicing
10
I Read Before Servicing
12
Necessary Tools And Materials
13
To Be Used Exclusively With R410A
13
Tools And Materials That May Be Used With R410A With Some Restrictions
13
Piping Materials
14
Copper Pipe Materials
14
Types Of Copper Pipes
14
Piping Materials/Radial Thickness
14
Flare Processing
15
Flare Nut
15
Storage Of Piping
16
Pipe Processing
16
Storage Location
16
Sealing The Pipe Ends
16
Brazing
17
Use Of Oxidized Solder For Brazing
17
Use Of Non-Oxidized Solder For Brazing
17
Items To Be Strictly Observed
17
Air Tightness Test
18
Halide Torch
18
R22 Leakage Detector
18
Vacuum Drying (Evacuation)
19
Recommended Vacuum Gauge
19
Standard Of Vacuum Degree
19
Required Precision Of Vacuum Gauge
19
Refrigerant Charging
21
Cylinder With A Siphon
21
Cylinder Without A Siphon
21
Remedies To Be Taken In Case Of A Refrigerant Leak
21
Characteristics Of The Conventional And The New Refrigerants
22
Chemical Property
22
Refrigerant Composition
22
Pressure Characteristics
22
Notes On Refrigerating Machine Oil
23
Refrigerating Machine Oil In The Hfc Refrigerant System
23
Effects Of Contaminants
23
Restrictions
24
System Configuration
26
Standard Combinations
26
High Cop Combinations
26
Types And Maximum Allowable Length Of Cables
27
Wiring Work
27
M-Net Transmission Line
27
Remote Controller Wiring
28
Switch Settings And Address Settings
28
M-Net Address Settings
29
Address Settings Table
29
Power Supply Switch Connector Connection On The Outdoor Unit
30
Selecting The Position Of Temperature Detection For The Indoor Unit
30
Various Start-Stop Controls
31
Miscellaneous Settings
31
Example Of Wiring Connection
32
Sw4-4: Off
33
Sample System Connection
34
An Example Of A System To Which An Ma Remote Controller Is Connected
35
Wiring Method
36
Indoor/Outdoor Transmission Line
36
Lossnay Connection
36
Ma Remote Controller Wiring
36
Sample Control Wiring
37
Cautions
37
Maximum Allowable Length
37
Group Operation Of Units In A System With Multiple Outdoor Units
39
Transmission Line For Centralized Control
40
Shielded Cable Connection
40
Address Setting Method
40
An Example Of A System To Which An M-Net Remote Controller Is Connected
47
An Example Of A System To Which Both Ma Remote Controller And M-Net Remote Controller Are Connected
49
Restrictions On Pipe Length
52
Refrigerant Pipe Size
58
Between Outdoor Unit And The First Twinning Pipe
58
Between Bc Controller And Indoor Unit
58
Between The Main And Sub Bc Controllers
58
Connecting The Bc Controller
59
Size Of The Pipe That Fits The Standard Bc Controller Ports
59
To Connect Multiple Indoor Units To A Port
60
Size Of The Pipe That Fits The Main Bc Controller Ports
61
Size Of The Pipe That Fits The Sub Bc Controller Ports
62
Outdoor Unit Components
64
Outdoor Unit Components And Refrigerant Circuit
66
Refrigerant Circuit
67
Control Box Of The Outdoor Unit
69
Outdoor Unit Circuit Board
70
M-Net Board
71
Inv Board
72
Fan Board
73
Noise Filter
74
Bc Controller Components
75
Rear View
76
Control Box Of The Bc Controller
78
Bc Controller Circuit Board
79
Remote Controller
82
Functions And Specifications Of Ma And Me Remote Controllers
84
Remote Controller Selection Criteria
84
System With Ma Remote Controller
84
Successful Completion Of Registration
85
Deletion Error
85
Group Settings And Interlock Settings Via The Me Remote Controller
85
To Search Group Settings
86
To Return To The Normal Display
86
Interlock Setting Search
86
Address Deletion
86
To Delete Group Settings
87
To Delete Interlock Settings
87
Remote Controller Function Selection Via The Me Remote Controller
87
Skip-Auto-Mode Setting
88
Operation Mode Display Selection Mode
88
Restricted Preset Temperature Range Mode
88
Room Temperature Display Selection Mode
88
Interlock Settings Via The Ma Remote Controller
89
Using The Built-In Temperature Sensor On The Remote Controller
90
Electrical Wiring Diagram
92
Electrical Wiring Diagram Of The Outdoor Unit
94
Electrical Wiring Diagram Of The Bc Controller
95
Electrical Wiring Diagram Of Transmission Booster
105
Refrigerant Circuit Diagram
108
Bc Controller
112
Principal Parts And Functions
115
Control
124
Functions And Factory Settings Of The Dipswitches
126
Function Of The Switch (Indoor Unit)
129
Dipswitches
129
Function Of The Switch
130
Address Switch
130
Me Remote Controller
131
Switch Functions
131
Controlling The Outdoor Unit
132
Outline Of Control Method
132
Startup Sequence Rotation
132
Initial Control
132
Bypass Control
133
Bypass Solenoid Valve
133
Compressor Frequency Control
134
Discharge Temperature Limit
134
Periodic Frequency Control
134
Defrost Operation Control
135
Starting The Defrost Operation
135
Stopping The Defrost Operation
136
Problems During Defrost Operation
136
Refrigerant Recovery Control
136
Outdoor Unit Heat Exchanger Capacity Control Patterns
137
Control At Initial Start-Up
138
Flowchart Of Initial Operation
138
Emergency Operation Mode
139
Starting The Emergency Operation
139
Ending The Emergency Operation
139
Control At Or After The Completion Of Emergency Operation
139
Indoor Unit Operation Mode
143
Outdoor Unit Operation Mode
143
Operation Pattern For Automatic Cooling/Heating Mode
143
Demand Control
144
Controlling Bc Controller
145
Control Of Svm1 Snd Svmb
145
Control Of Lev
145
Control Of Svm2, And Svm2B
145
Operation Flow Chart
146
Mode Determination Flowchart
146
Dry Operation
151
Test Run Mode
152
Items To Be Checked Before A Test Run
154
Test Run Method
155
Operating Characteristic And Refrigerant Amount
156
Adjusting The Refrigerant Amount
156
Amount Of Refrigerant
156
To Be Checked During Operation
156
Amount Of Refrigerant To Be Added
157
Calculation Formula
157
Refrigerant Amount Adjust Mode
159
The Following Symptoms Are Normal
161
Cooling Only Operation
162
Standard Operation Data (Reference Data)
162
Troubleshooting
184
Error Code Lists
186
Responding To Error Display On The Remote Controller
189
Error Definition And Error Detection Method
189
Cause, Check Method And Remedy
190
Error Code 1302
192
High Pressure Fault 1 (Outdoor Unit)
192
Error Code 2502 Drain Pump Fault
197
Water Leakage
199
Water Supply Cutoff
199
Open Phase
200
Transmission Power Supply Fault
201
Other Than Error Detail Code Ff (Outdoor Unit)
201
Power Supply Signal Sync Error
202
Rpm Error/Motor Error
202
Abnormal Bus Voltage Drop (Detail Code 108)
203
Abnormal Bus Voltage Rise (Detail Code 109)
204
Logic Error (Detail Code No.111)
204
Low Bus Voltage At Startup (Detail Code 131)
205
Heatsink Overheat Protection
205
Overload Protection
206
Ipm Error (Detail Code 101)
207
Acct Overcurrent (H/W Detection) (Detail Code 102)
208
Dcct Overcurrent (H/W Detection) (Detail Code 103)
208
Instantaneous Overcurrent (Detail Code 106)
208
Overcurrent (Detail Code 107)
208
Overcurrent Error Due To Short-Circuited Motor (Detail Code 105)
209
Return Air Temperature Sensor (Th21) Fault (Indoor Unit)
210
Return Air Temperature Sensor (Th4) Fault (Oa Processing Unit)
210
Heat Exchanger Outlet Temperature Sensor (Th3) Fault (Outdoor Unit)
211
Discharge Temperature Sensor (Th4) Fault (Outdoor Unit)
211
Accumulator Inlet Temperature Sensor (Th5) Fault (Outdoor Unit)
211
Heat Exchanger Inlet Temperature Sensor (Th6) Fault (Outdoor Unit)
211
Heatsink Temperature Sensor (Thhs) Fault (Detail Code 01)
212
Liquid Inlet Temperature Sensor (Th11) Fault (Bc Controller)
213
Bypass Outlet Temperature Sensor (Th12) Fault (Bc Controller)
213
Lev3 Outlet Temperature Sensor (Th15) Fault (Bc Controller)
213
Lev3 Inlet Temperature Sensor (Th16) Fault (Bc Controller)
213
High-Pressure Sensor Fault (63Hs1) (Outdoor Unit)
214
High-Pressure Sensor Fault (Outdoor Unit Hps/Bc Controller Ps1)
215
Intermediate Pressure Sensor Fault (Bc Controller Ps3)
215
Acct Sensor Fault (Detail Code 115)
215
Acct Sensor Circuit Fault (Detail Code 117)
216
Open-Circuited Ipm/Loose Acct Connector (Detail Code 119)
217
Faulty Acct Wiring (Detail Code 120)
217
Temperature Sensor Fault
218
Loose Float Switch Connector
219
Remote Controller Board Fault (Nonvolatile Memory Error)
219
Remote Controller Board Fault (Clock Ic Error)
219
Address Overlaps
220
Polarity Setting Error
220
Transmission Processor Hardware Error
221
Transmission Line Bus Busy Error
222
Communication Error Between Device And Transmission Processors
222
No Ack Error
223
No Response Error
232
Ma Controller Signal Reception Error (No Signal Reception)
233
Ma Remote Controller Signal Transmission Error (Synchronization Error)
234
Ma Remote Controller Signal Transmission Error (H/W Error)
235
Ma Controller Signal Reception Error (Start Bit Detection Error)
236
Total Capacity Error
237
Capacity Code Setting Error
238
Wrong Number Of Connected Units
239
Address Setting Error
240
Port Setting Error
241
Connection Information Signal Transmission/Reception Error
242
Remote Controller Sensor Fault
242
Function Setting Error
243
Model Setting Error
243
Incompatible Unit Combination
243
In The Case Of Ma Remote Controller
245
In Case Of M-Net Remote Controller
249
Both For Ma Remote Controller And M-Net Remote Controller
252
Investigation Of Transmission Wave Shape/Noise
257
Troubleshooting Principal Parts
260
High-Pressure Sensor
260
Pressure Sensor Configuration
260
Low-Pressure Sensor
261
Solenoid Valve
262
In Case Of 21S4A
262
In Case Of Sv1A
262
Refrigerant Circuit Figure (P200 - P300, Ep200 Models)
263
Refrigerant Circuit Figure (P350 - P400, Ep300 Models)
264
In The Case Of Sv5B
265
In The Case Of Sv5C
265
In The Case Of Sv9
265
Outdoor Unit Fan
266
Lev Operation
266
Indoor Lev And Bc Controller Lev
266
Pulse Signal Output And Valve Operation
266
Judgment Methods And Possible Failure Mode
268
Troubleshooting Principal Parts Of Bc Controller
269
Troubleshooting Flow Chart For Pressure Sensor
269
Check The Self-Diagnosis Switch
270
Temperature Sensor
271
Troubleshooting Instructions For Thermistor
271
Troubleshooting Flow Chart For Lev Solenoid Valve
273
Check Method Of Fully Open State Or Fully Closed State Of Lev
274
Self-Diagnosis Led
275
Troubleshooting Flow Chart For Solenoid Valve Body
276
Solenoid Valve (Sva, Svb, Svc)
277
Bc Controller Transformer
279
Inverter-Related Problems: Troubleshooting And Remedies
280
Troubleshooting For Igbt Module
285
Tester Restriction
285
Judgment Value (Reference)
286
Inv Board External Diagram
286
Control Power Source Function Block
287
Troubleshooting Transmission Power Circuit Of Outdoor Unit
288
Refrigerant Leak
289
Leak Spot: In The Case Of Extension Pipe For Indoor Unit
289
Leak Spot: In The Case Of Outdoor Unit
289
Leak Spot: In The Case Of Outdoor Unit (Heating Season)
290
Compressor Replacement Instructions
291
Solenoid Valve Block Assy
293
Solenoid Valve Block Assy (Sv4A, Sv4B, Sv4D) Replacement Procedures
293
To Install Solenoid Valve Block Assy
293
To Remove Solenoid Valve Block Assy
293
Solenoid Valve (Sv1A), Capillary Tube Assy (Cp1) Replacement
301
Servicing The Bc Controller
302
Service Panel
302
Control Box
302
Thermistor
303
Pressure Sensor
303
Lev
304
Troubleshooting Using The Outdoor Unit Led Error Display
305
Led Is Blank
305
Only The Software Version Appears On The Led Display
305
Led Monitor Display On The Outdoor Unit Board
306
How To Read The Led On The Service Monitor
308
Led Display At Initial Setting
308
Time Data Storage Function
309
Date Display
309
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Table of Contents
Troubleshooting
Troubleshooting
184
Troubleshooting Principal Parts
260
Troubleshooting Principal Parts of BC Controller
269
Temperature sensor
271
Troubleshooting flow chart for LEV Solenoid valve
273
Troubleshooting flow chart for solenoid valve body
276
Inverter-related problems: Troubleshooting and remedies
280
Troubleshooting for IGBT Module
285
Troubleshooting transmission power circuit of outdoor unit
288
Troubleshooting Using the Outdoor Unit LED Error Display
305
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This manual is also suitable for:
Pury-p400yhm-a
Pury-p250
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Pury-(e)p450
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Pury-p650
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