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Mitsubishi Electric
Air Conditioner
R410A
Mitsubishi Electric R410A Service Handbook
346 pages
Manual
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2
Table of Contents
default chapter
8
Table of Contents
8
Preparation for Piping Work
12
Read before Servicing
12
Tool Preparation
13
Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil
14
Piping Materials
14
Pipe Processing
15
Storage of Piping Materials
15
Characteristics of the New and Conventional Refrigerants
16
Refrigerant Oil
17
Pipe Brazing
18
Working with Refrigerant Piping
18
Air Tightness Test
19
Vacuum Drying
20
Refrigerant Charging
21
Precautions for Wiring
22
Chapter 2 Restrictions
24
System Configurations
26
Types and Maximum Allowable Length of Cables
27
Switch Settings
29
M-NET Address Settings
30
Address Settings List
30
Outdoor Unit Power Jumper Connector Connection
31
Outdoor Unit Centralized Controller Switch Setting
31
Room Temperature Detection Position Selection
31
Start/Stop Control of Indoor Units
32
Miscellaneous Settings
32
Various Control Methods Using the Signal Input/Output Connector on Outdoor Unit
33
Demand Control Overview
35
System Connection Example
37
Example System with an MA Remote Controller
39
Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
39
Single Refrigerant System with Two or more LOSSNAY Units
41
Grouped Operation of Units in Separate Refrigerant Circuits
43
System with a Connection of System Controller to Centralized Control Transmission Line
45
System with a Connection of System Controller to Indoor-Outdoor Transmission Line
47
Example System with an ME Remote Controller
49
System with a Connection of System Controller to Centralized Control Transmission Line
49
Example System with an MA and an ME Remote Controller
51
System with a Connection of System Controller to Centralized Control Transmission Line
51
2-10 Restrictions on Refrigerant Pipes
53
Restrictions on Refrigerant Pipe Length
53
Restrictions on Refrigerant Pipe Size
55
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
58
External Appearance and Refrigerant Circuit Components of Outdoor Unit
60
External Appearance of Outdoor Unit
60
Outdoor Unit Refrigerant Circuits
62
Outdoor Unit Refrigerant Circuit Diagrams
65
Functions of the Major Components of Outdoor Unit
66
Functions of the Major Components of Indoor Unit
69
Chapter 4 Electrical Components and Wiring Diagrams
70
Outdoor Unit Circuit Board Arrangement
72
Outdoor Unit Control Box
72
Transformer Box
75
Fan Box
76
Outdoor Unit Circuit Board Components
77
Control Board
77
M-NET Board (Transmission Power Supply Board)
78
INV Board
79
Fan Board
82
Noise Filter
84
Connect Board
87
Outdoor Unit Electrical Wiring Diagrams
88
Transmission Booster Electrical Wiring Diagrams
93
Chapter 5 Control
94
Dipswitch Functions and Factory Settings
96
Outdoor Unit Switch Functions and Factory Settings
96
Indoor Unit Switch Functions and Factory Settings
100
Remote Controller Switch Functions and Factory Settings
101
Outdoor Unit Control
103
Overview
103
Rotation Control
103
Initial Control
103
Startup Control
103
Refrigerant Bypass Control
104
Frequency Control
105
Defrost Operation Control
106
Refrigerant Recovery Control
108
Outdoor Unit Fan Control
109
Subcool Coil Control (Linear Expansion Valve 1)
109
Refrigerant Flow Control (Linear Expansion Valves 2A and 2B)
109
Control at Initial Startup
109
Emergency Operation Mode
112
Operation Mode
115
Demand Control
115
Control of IH Energization Without the Compressor in Operation
115
Operation Flowcharts
116
Operation Sequence Flowchart
116
Actions Performed in Different Modes
118
Chapter 6 Test Run
122
Read before Test Run
124
MA and ME Remote Controller Functions and Specifications
125
Function/Specification Comparison
125
Local Remote Controller Selection Tips
125
Making the Group and Interlock Settings from an ME Remote Controller
126
Overview
126
Address Registration
126
Address Search
128
Address Deletion
129
Making Group and Interlock Settings from Another Remote Controller
129
Selecting Remote Controller Functions from an ME Remote Controller
130
Making Interlock Settings from an MA Remote Controller
132
MA Remote Controller (PAR-21MAAU)
132
Changing the Room Temperature Detection Position
134
Test Run Method
135
MA Remote Controller (PAR-21MAAU)
135
Operation Characteristics and Refrigerant Charge
136
Evaluating and Adjusting Refrigerant Charge
136
Refrigerant Overcharge and Undercharge
136
Checking the Refrigerant Charge During Operation
136
The Amount of Refrigerant to be Added
137
Refrigerant Charge Adjustment Mode
140
6-10 the Following Symptoms Are Normal
142
Standard Operation Data (Reference Data)
143
Single Unit (Standard)
143
Dual Unit Combination (Standard)
146
Triple Unit Combination (Standard)
151
Chapter 7 Troubleshooting Using Error Codes
156
Error Code and Preliminary Error Code Lists
160
Inverter Protection Level Table
164
Error Code Definitions and Solutions: Codes [0 - 999]
165
Error Code [0403]
165
Error Code [0404]
166
Error Code Definitions and Solutions: Codes [1000 - 1999]
167
Error Code [1102]
167
Error Code [1301]
168
Error Code [1302] (During Operation)
169
Error Code [1302] (at Startup)
170
Error Code [1500]
170
Error Code Definitions and Solutions: Codes [2000 - 2999]
171
Error Code [2500] (Models with a Drain Sensor)
171
Error Code [2500] (Models with a Float Switch)
172
Error Code [2502] (Models with a Drain Sensor)
173
Error Code [2502] (Models with a Float Switch)
174
Error Code [2503]
175
Error Code [2600]
176
Error Code [2601]
176
Error Code Definitions and Solutions: Codes [4000 - 4999]
177
Error Code [4102] (TLMU)
177
Error Code [4102] (YLMU)
178
Error Code [4106]
179
Error Code [4109]
179
Error Code [4115] (TLMU)
180
Error Code [4115] (YLMU)
180
Error Code [4116]
181
Error Code [4121]
181
Error Code [4124]
182
Error Codes [4220, 4225, 4226] Detail Code 108 (TLMU)
183
Error Codes [4220, 4225, 4226] Detail Code 108 (YLMU)
185
Error Codes [4220, 4225, 4226] Detail Code 109 (TLMU)
187
Error Codes [4220, 4225, 4226] Detail Code 109 (YLMU)
187
Error Codes [4220, 4225, 4226] Detail Code 110 (TLMU)
187
Error Codes [4220, 4225, 4226] Detail Code 111 (TLMU)
188
Error Codes [4220, 4225, 4226] Detail Code 111 (YLMU)
189
Error Codes [4220, 4225, 4226] Detail Code 131
190
Error Code [4230] (TLMU)
190
Error Code [4230] (YLMU)
191
Error Code [4240] (TLMU)
192
Error Code [4240] (YLMU)
193
Error Codes [4250, 4255, 4256] Detail Code 101 (TLMU)
194
Error Codes [4250, 4255, 4256] Detail Code 101 (YLMU)
195
Error Code [4250] Detail Codes 103, 106, and 107 (TLMU)
196
Error Codes [4250, 4255, 4256] Detail Code 104
197
Error Codes [4250, 4255, 4256] Detail Code 105
198
Error Code [4250] Detail Codes 106 and 107 (YLMU)
198
Error Code [4260] (TLMU)
199
Error Code [4260] (YLMU)
199
Error Code Definitions and Solutions: Codes [5000 - 5999]
200
Error Codes [5101, 5102, 5103, 5104]
200
Error Codes [5102, 5103, 5104, 5105, 5106, 5107]
201
Error Code [5110] (TLMU)
202
Error Code [5110] (YLMU)
202
Error Code [5201]
203
Error Code [5301] Detail Code 115 (TLMU)
204
Error Code [5301] Detail Code 115 (YLMU)
205
Error Code [5301] Detail Code 116 (TLMU)
206
Error Code [5301] Detail Code 117
206
Error Code [5301] Detail Code 118 (TLMU)
207
Error Code [5301] Detail Code 119 (TLMU)
208
Error Code [5301] Detail Code 119 (YLMU)
209
Error Code [5301] Detail Code 120 (TLMU)
210
Error Code [5301] Detail Code 120 (YLMU)
211
Error Codes [5305, 5306] Detail Code 132
211
Error Codes [5305, 5306] Detail Code 133
212
Error Codes [5305, 5306] Detail Code 134
213
Error Code [5401]
213
Error Code [5701]
214
Error Code Definitions and Solutions: Codes [6000 - 6999]
215
Error Code [6201]
215
Error Code [6202]
215
Error Code [6600]
216
Error Code [6601]
216
Error Code [6602]
217
Error Code [6603]
218
Error Code [6606]
218
Error Code [6607] Error Source Address = Outdoor Unit (OC)
219
Error Code [6607] Error Source Address = Indoor Unit (IC)
220
Error Code [6607] Error Source Address = LOSSNAY (LC)
221
Error Code [6607] Error Source Address = ME Remote Controller
222
Error Code [6607] Error Source Address = System Controller
223
Error Code [6607] All Error Source Addresses
224
Error Code [6607] no Error Source Address
225
Error Code [6608]
226
Error Code [6831]
227
Error Code [6832]
228
Error Code [6833]
229
Error Code [6834]
230
Error Code [6840]
231
Error Code [6841]
231
Error Code [6842]
232
Error Code [6843]
233
Error Code [6846]
234
Error Code Definitions and Solutions: Codes [7000 - 7999]
235
Error Code [7100]
235
Error Code [7101]
236
Error Code [7102]
237
Error Code [7105]
238
Error Code [7106]
238
Error Code [7110]
239
Error Code [7111]
239
Error Code [7113]
240
Error Code [7117]
241
Error Code [7130]
242
MA Remote Controller Problems
246
The LCD Does Not Light up
246
The LCD Momentarily Lights up and then Goes off
247
HO" and "PLEASE WAIT" Do Not Go off the Screen
248
Air Conditioning Units Do Not Operate When the on Button Is Pressed
249
ME Remote Controller Problems
250
The LCD Does Not Light up
250
The LCD Momentarily Lights up and then Goes off
251
HO" Does Not Go off the Screen
252
88" Appears on the LCD
253
Refrigerant Control Problems
254
Units in the Cooling Mode Do Not Operate at Expected Capacity
254
Units in the Heating Mode Do Not Operate at Expected Capacity
256
Outdoor Units Stop at Irregular Times
258
Checking Transmission Waveform and for Electrical Noise Interference
259
M-Net
259
MA Remote Controller
261
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
262
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
262
High-Pressure Sensor Configuration (63HS1)
262
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
263
Low-Pressure Sensor Configuration (63LS)
263
Troubleshooting Solenoid Valve Problems
264
Troubleshooting Outdoor Unit Fan Problems
266
Troubleshooting LEV Problems
267
General Overview on LEV Operation
267
Possible Problems and Solutions
270
Coil Removal Instructions
271
Troubleshooting Inverter Problems (TLMU)
273
Inverter-Related Problems and Solutions
273
Checking the Inverter Board Error Detection Circuit
275
Checking the Compressor for Ground Fault and Coil Resistance Problems
275
Checking the Inverter for Damage at No-Load
276
Checking the Inverter for Damage During Compressor Operation
277
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
277
Checking the Fan Board Error Detection Circuit at no Load
277
Checking the Fan Inverter for Damage at no Load
278
Checking the Fan Inverter for Damage with Load
279
Checking the Installation Conditions
279
Solutions for the Main No-Fuse Breaker Trip
280
Solutions for the Main Earth Leakage Breaker Trip
280
Simple Check on Inverter Circuit Components
281
Troubleshooting Problems with Intelligent Power Module
282
Troubleshooting Problems with Diode Stack
283
Troubleshooting Problems with IGBT Module
283
Troubleshooting Inverter Problems (YLMU)
285
Inverter-Related Problems and Solutions
285
Checking the Inverter Board Error Detection Circuit
287
Checking the Compressor for Ground Fault and Coil Resistance Problems
287
Checking the Inverter for Damage at No-Load
287
Checking the Inverter for Damage During Compressor Operation
288
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
288
Checking the Fan Board Error Detection Circuit at no Load
288
Checking the Fan Inverter for Damage at no Load
289
Checking the Fan Inverter for Damage with Load
290
Checking the Installation Conditions
290
Solutions for the Main No-Fuse Breaker Trip
291
Solutions for the Main Earth Leakage Breaker Trip
291
Simple Check on Inverter Circuit Components
292
Troubleshooting Problems with IGBT Module
292
Control Circuit (TLMU)
294
Control Power Supply Function Block
294
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
297
Control Circuit (YLMU)
299
Control Power Supply Function Block
299
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
301
8-13 Measures for Refrigerant Leakage
302
8-14 Compressor Replacement Instructions
304
8-15 Heat Exchanger Replacement Instructions
306
Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit
307
Chapter 9 LED Status Indicators on the Outdoor Unit Circuit Board
308
LED Status Indicators
310
How to Read the LED
310
Initial LED Display
311
Clock Memory Function
312
LED Status Indicators Table
313
Other manuals for Mitsubishi Electric R410A
Operating And Installation Instructions
54 pages
Technical Manual
166 pages
Guide
18 pages
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Mitsubishi Electric R410A Specifications
General
Brand
Mitsubishi Electric
Model
R410A
Category
Air Conditioner
Language
English
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