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PURY-HP72
Mitsubishi Electric PURY-HP72 Service Manual
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2
Table of Contents
Table of Contents
10
Safety Precautions
2
Chapter 1 Check before Servicing
14
Preparation for Piping Work
14
Read before Servicing
14
Tool Preparation
15
Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil
16
Piping Materials
16
Pipe Processing
18
Storage of Piping Materials
18
Characteristics of the New and Conventional Refrigerants
19
Refrigerant Oil
20
Working with Refrigerant Piping
21
Pipe Brazing
21
Air Tightness Test
22
Vacuum Drying
23
Refrigerant Charging
25
Precautions for Wiring
26
Chapter 2 Restrictions
28
System Configurations
30
Types and Maximum Allowable Length of Cables
31
Switch Settings
32
Address Settings List
33
M-NET Address Settings
33
Outdoor Unit Centralized Controller Switch Setting
35
Outdoor Unit Power Jumper Connector Connection
35
Room Temperature Detection Position Selection
35
Miscellaneous Settings
36
Start/Stop Control of Indoor Units
36
Various Control Methods Using the Signal Input/Output Connector on Outdoor Unit
37
Demand Control Overview
40
System Connection Example
41
Example System with an MA Remote Controller
43
Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
43
Single Refrigerant System with Two or more LOSSNAY Units
45
Grouped Operation of Units in Separate Refrigerant Circuits
47
System with a Connection of System Controller to Centralized Control Transmission Line
49
System with a Connection of System Controller to Indoor-Outdoor Transmission Line
51
System with Multiple BC Controllers
53
Example System with an ME Remote Controller
57
System with a Connection of System Controller to Centralized Control Transmission Line
57
Example System with an MA and an ME Remote Controller
59
System with a Connection of System Controller to Centralized Control Transmission Line
59
2-10 Restrictions on Refrigerant Pipes
62
Restrictions on Refrigerant Pipe Length
62
Restrictions on Refrigerant Pipe Size
68
BC Controller Connection Method
69
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
74
External Appearance and Refrigerant Circuit Components of Outdoor Unit
76
External Appearance of Outdoor Unit
76
Outdoor Unit Refrigerant Circuits
77
Outdoor Unit Refrigerant Circuit Diagrams
78
Functions of the Major Components of Outdoor Unit
80
Functions of the Major Components of Indoor Unit
83
External Appearance and Refrigerant Circuit Components of BC Controller
84
BC Controller Refrigerant Circuit Diagrams
87
Functions of the Major Components of BC Controller
90
Chapter 4 Electrical Components and Wiring Diagrams
96
Outdoor Unit Circuit Board Arrangement
98
Outdoor Unit Control Box
98
Transformer Box
100
Control Board
101
Outdoor Unit Circuit Board Components
101
M-NET Board (Transmission Power Supply Board)
102
INV Board
103
Fan Board
105
Noise Filter
107
Outdoor Unit Electrical Wiring Diagrams
109
Transmission Booster Electrical Wiring Diagrams
111
BC Controller Circuit Board Arrangement
112
BC Controller Control Box
112
BC Board
113
BC Controller Circuit Board Components
113
Four-Relay Board
114
Ten-Relay Board
114
BC Controller Electrical Wiring Diagrams
115
Chapter 5 Control
126
Dipswitch Functions and Factory Settings
128
Outdoor Unit Switch Functions and Factory Settings
128
Indoor Unit Switch Functions and Factory Settings
132
Remote Controller Switch Functions and Factory Settings
133
BC Controller Switch Settings
134
Initial Control
135
Outdoor Unit Control
135
Overview
135
Rotation Control
135
Startup Control
135
Refrigerant Bypass Control
136
Frequency Control
137
Defrost Operation Control
138
ON-Defrost Operation Control
140
Refrigerant Recovery Control
140
Oil Recovery During Compressor Operation at Low Frequency
141
Outdoor Unit Fan Control
141
Compressor Discharge Superheat Control (Expansion Valve <LEV4>)
142
Control at Initial Startup
142
Evaporation Temperature Control (Expansion Valves <Lev5A>)
142
Emergency Operation Mode
144
Unit Control Scheme
146
Refrigerant Circuits and Refrigerant Cycle Diagrams
147
Operation Mode
148
Demand Control
149
BC Controller Control
150
Operation Flowcharts
151
Operation Sequence Flowchart
151
Actions Performed in Different Modes
154
Chapter 6 Test Run
158
Read before Test Run
160
Function/Specification Comparison
161
Local Remote Controller Selection Tips
161
MA and ME Remote Controller Functions and Specifications
161
Address Registration
162
Making the Group and Interlock Settings from an ME Remote Controller
162
Overview
162
Address Search
164
Address Deletion
165
Making Group and Interlock Settings from Another Remote Controller
165
Selecting Remote Controller Functions from an ME Remote Controller
166
MA Remote Controller (PAR-21MAAU)
168
Making Interlock Settings from an MA Remote Controller
168
Changing the Room Temperature Detection Position
170
MA Remote Controller (PAR-21MAAU)
171
Test Run Method
171
Checking the Refrigerant Charge During Operation
172
Evaluating and Adjusting Refrigerant Charge
172
Operation Characteristics and Refrigerant Charge
172
Refrigerant Overcharge and Undercharge
172
The Amount of Refrigerant to be Added
173
Refrigerant Charge Adjustment Mode
175
6-10 the Following Symptoms Are Normal
177
Single Unit (Standard)
178
Standard Operation Data (Reference Data)
178
Dual Unit Combination (Standard)
179
Chapter 7 Troubleshooting Using Error Codes
182
Error Code and Preliminary Error Code Lists
186
Error Code Definitions and Solutions: Codes [0 - 999]
190
Error Code [0403]
190
Error Code Definitions and Solutions: Codes [1000 - 1999]
191
Error Code [1102]
191
Error Code [1301]
192
Error Code [1302] (During Operation)
193
Error Code [1302] (at Startup)
194
Error Code [1500]
194
Error Code Definitions and Solutions: Codes [2000 - 2999]
195
Error Code [2500] (Models with a Drain Sensor)
195
Error Code [2500] (Models with a Float Switch)
196
Error Code [2502] (Models with a Drain Sensor)
197
Error Code [2502] (Models with a Float Switch)
198
Error Code [2503]
199
Error Code [2600]
200
Error Code [2601]
200
Error Code [2602]
201
Error Code Definitions and Solutions: Codes [3000 - 3999]
202
Error Code [3121]
202
Error Code Definitions and Solutions: Codes [4000 - 4999]
203
Error Code [4102] (TKMU)
203
Error Code [4102] (YKMU)
204
Error Code [4106]
205
Error Code [4109]
205
Error Code [4115] (TKMU)
206
Error Code [4115] (YKMU)
206
Error Code [4116]
207
Error Code [4121]
207
Error Codes [4220, 4225] Detail Code 108 (TKMU)
208
Error Codes [4220, 4225] Detail Code 108 (YKMU)
209
Error Codes [4220, 4225] Detail Code 109 (TKMU)
210
Error Codes [4220, 4225] Detail Code 109 (YKMU)
210
Error Codes [4220, 4225] Detail Code 110 (TKMU)
211
Error Codes [4220, 4225] Detail Code 111 (TKMU)
211
Error Codes [4220, 4225] Detail Code 111 (YKMU)
212
Error Codes [4220, 4225] Detail Code 131
212
Error Code [4230] (TKMU)
213
Error Code [4230] (YKMU)
213
Error Code [4240] (TKMU)
214
Error Code [4240] (YKMU)
214
Error Codes [4250, 4255] Detail Code 101 (TKMU)
215
Error Codes [4250, 4255] Detail Code 101 (YKMU)
216
Error Code [4250] Detail Codes 103, 106, and 107 (TKMU)
217
Error Code [4250] Detail Codes 106 and 107 (YKMU)
217
Error Codes [4250, 4255] Detail Code 104
218
Error Codes [4250, 4255] Detail Code 105
219
Error Code [4260] (TKMU)
220
Error Code [4260] (YKMU)
220
Error Code Definitions and Solutions: Codes [5000 - 5999]
221
Error Codes [5101, 5102, 5103, 5104]
221
Error Codes [5104, 5105, 5106, 5107, 5109, 5111]
222
Error Code [5110] (TKMU)
223
Error Code [5110] (YKMU)
223
Error Codes [5111, 5112, 5115, 5116]
224
Error Code [5201]
225
Error Codes [5201, 5203]
225
Error Code [5301] Detail Code 115 (TKMU)
226
Error Code [5301] Detail Code 115 (YKMU)
226
Error Code [5301] Detail Code 116 (TKMU)
227
Error Code [5301] Detail Code 117
227
Error Code [5301] Detail Code 118 (TKMU)
228
Error Code [5301] Detail Code 119 (TKMU)
228
Error Code [5301] Detail Code 119 (YKMU)
229
Error Code [5301] Detail Code 120 (TKMU)
229
Error Code [5301] Detail Code 120 (YKMU)
230
Error Codes [5305] Detail Code 132
230
Error Codes [5305] Detail Code 133
231
Error Code [5401]
232
Error Codes [5305] Detail Code 134
232
Error Code [5402]
233
Error Code [5403]
233
Error Code [5701]
233
Error Code Definitions and Solutions: Codes [6000 - 6999]
234
Error Code [6201]
234
Error Code [6202]
234
Error Code [6600]
235
Error Code [6601]
235
Error Code [6602]
236
Error Code [6603]
237
Error Code [6606]
237
Error Code [6607] Error Source Address = BC Controller (BC)
238
Error Code [6607] Error Source Address = Outdoor Unit (OC)
238
Error Code [6607] Error Source Address = Indoor Unit (IC)
239
Error Code [6607] Error Source Address = LOSSNAY (LC)
240
Error Code [6607] Error Source Address = ME Remote Controller
241
Error Code [6607] Error Source Address = System Controller
242
Error Code [6607] All Error Source Addresses
243
Error Code 6607 no ACK Error
244
Error Code [6607] no Error Source Address
244
Error Code [6608]
245
Error Code [6831]
246
Error Code [6832]
247
Error Code [6833]
248
Error Code [6834]
249
Error Code Definitions and Solutions: Codes [7000 - 7999]
250
Error Code [7100]
250
Error Code [7101]
251
Error Code [7102]
252
Error Code [7105]
253
Error Code [7106]
253
Error Code [7107]
254
Error Code [7110]
255
Error Code [7111]
255
Error Code [7113]
256
Error Code [7117]
257
Error Code [7130]
258
Chapter 8 Troubleshooting Based on Observed Symptoms
260
MA Remote Controller Problems
262
The LCD Does Not Light up
262
The LCD Momentarily Lights up and then Goes off
263
HO" and "PLEASE WAIT" Do Not Go off the Screen
264
Air Conditioning Units Do Not Operate When the on Button Is Pressed
265
ME Remote Controller Problems
266
The LCD Does Not Light up
266
The LCD Momentarily Lights up and then Goes off
267
HO" Does Not Go off the Screen
268
88" Appears on the LCD
269
Refrigerant Control Problems
270
Units in the Cooling Mode Do Not Operate at Expected Capacity
270
Units in the Heating Mode Do Not Operate at Expected Capacity
272
Outdoor Units Stop at Irregular Times
274
Checking Transmission Waveform and for Electrical Noise Interference
275
M-Net
275
MA Remote Controller
277
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
278
High-Pressure Sensor Configuration (63HS1,PS1,PS3)
278
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
278
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
279
Low-Pressure Sensor Configuration (63LS)
279
Troubleshooting Solenoid Valve Problems
280
Troubleshooting Outdoor Unit Fan Problems
283
General Overview on LEV Operation
284
Troubleshooting LEV Problems
284
Possible Problems and Solutions
286
Coil Removal Instructions
287
Pressure Sensor
288
Troubleshooting Problems with Major Components on BC Controller
288
Temperature Sensor
290
Troubleshooting Flowchart for Levs
292
Troubleshooting Flowchart for Solenoid Valves
295
BC Controller Transformer
298
Inverter-Related Problems and Solutions
299
Troubleshooting Inverter Problems (TKMU)
299
Checking the Compressor for Ground Fault and Coil Resistance Problems
301
Checking the Inverter Board Error Detection Circuit
301
Checking the Inverter for Damage at No-Load
301
Checking the Fan Board Error Detection Circuit at no Load
302
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
302
Checking the Inverter for Damage During Compressor Operation
302
Checking the Fan Inverter for Damage at no Load
303
Checking the Fan Inverter for Damage with Load
304
Checking the Installation Conditions
304
Solutions for the Main Earth Leakage Breaker Trip
305
Solutions for the Main No-Fuse Breaker Trip
305
Simple Check on Inverter Circuit Components
306
Troubleshooting Problems with Intelligent Power Module
307
Troubleshooting Problems with Diode Stack
308
Inverter-Related Problems and Solutions
309
Troubleshooting Inverter Problems (YKMU)
309
Checking the Compressor for Ground Fault and Coil Resistance Problems
311
Checking the Inverter Board Error Detection Circuit
311
Checking the Inverter for Damage at No-Load
311
Checking the Fan Board Error Detection Circuit at no Load
312
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
312
Checking the Inverter for Damage During Compressor Operation
312
Checking the Fan Inverter for Damage at no Load
313
Checking the Fan Inverter for Damage with Load
314
Checking the Installation Conditions
314
Solutions for the Main Earth Leakage Breaker Trip
315
Solutions for the Main No-Fuse Breaker Trip
315
Simple Check on Inverter Circuit Components
316
Troubleshooting Problems with IGBT Module
316
Control Circuit (TKMU)
318
Control Power Supply Function Block
318
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
319
Control Circuit (YKMU)
320
Control Power Supply Function Block
320
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
321
8-14 Measures for Refrigerant Leakage
322
8-15 Compressor Replacement Instructions
324
Solenoid Valve Block and Check Valve Replacement Instructions
326
8-17 BC Controller Maintenance Instructions
330
Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit
333
Chapter 9 Led Status Indicators on the Outdoor Unit Circuit Board
334
How to Read the LED
336
LED Status Indicators
336
Initial LED Display
337
Clock Memory Function
338
LED Status Indicators Table
339
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Mitsubishi Electric PURY-HP72 Specifications
General
Brand
Mitsubishi Electric
Model
PURY-HP72
Category
Air Conditioner
Language
English
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