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HP120TNU-A
Mitsubishi Electric HP120TNU-A Air Manuals
Manuals and User Guides for Mitsubishi Electric HP120TNU-A Air. We have
1
Mitsubishi Electric HP120TNU-A Air manual available for free PDF download: Service Handbook
Mitsubishi Electric HP120TNU-A Service Handbook (398 pages)
R410A
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 12.25 MB
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
17
Storage of Piping Materials
17
Characteristics of the New and Conventional Refrigerants
18
Refrigerant Oil
19
Working with Refrigerant Piping
20
Pipe Brazing
20
Air Tightness Test
21
Vacuum Drying
22
Refrigerant Charging
24
Precautions for Wiring
25
Cautionary Notes on Installation Environment and Maintenance
27
Chapter 2 Restrictions
28
System Configurations
30
Types and Maximum Allowable Length of Cables
31
Switch Settings
33
Address Settings List
34
M-NET Address Settings
34
Outdoor Unit Centralized Controller Switch Setting
35
Outdoor Unit Power Jumper Connector Connection
35
Miscellaneous Settings
36
Room Temperature Detection Position Selection
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
42
Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
42
Single Refrigerant System with Two or more LOSSNAY Units
44
Grouped Operation of Units in Separate Refrigerant Circuits
46
System with a Connection of System Controller to Centralized Control Transmission Line
48
System with a Connection of System Controller to Indoor-Outdoor Transmission Line
50
System with Multiple BC Controllers
52
Example System with an ME Remote Controller
55
System with a Connection of System Controller to Centralized Control Transmission Line
55
Example System with an MA and an ME Remote Controller
57
System with a Connection of System Controller to Centralized Control Transmission Line
57
2-10 Restrictions on Refrigerant Pipes
60
Restrictions on Refrigerant Pipe Length
60
Restrictions on Refrigerant Pipe Size
67
BC Controller Connection Method
68
Outdoor Twinning Kit
75
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
76
External Appearance and Refrigerant Circuit Components of Outdoor Unit
78
External Appearance of Outdoor Unit
78
Outdoor Unit Refrigerant Circuits
79
Outdoor Unit Refrigerant Circuit Diagrams
80
Functions of the Major Components of Outdoor Unit
81
Functions of the Major Components of Indoor Unit
84
External Appearance and Refrigerant Circuit Components of BC Controller
85
BC Controller Refrigerant Circuit Diagrams
88
Functions of the Major Components of BC Controller
90
Chapter 4 Electrical Components and Wiring Diagrams
94
Outdoor Unit Circuit Board Arrangement
96
Outdoor Unit Control Box
96
Control Board
99
Outdoor Unit Circuit Board Components
99
Power-Supply Board (PS Board)
100
Inverter Board (INV Board)
101
Fan Board
103
Noise Filter
105
Capacitor Board (CAP Board)
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
124
Dipswitch Functions and Factory Settings
126
Outdoor Unit Switch Functions and Factory Settings
126
Indoor Unit Switch Functions and Factory Settings
132
Remote Controller Switch Functions and Factory Settings
133
BC Controller Switch Settings
135
Initial Control
136
Outdoor Unit Control
136
Overview
136
Rotation Control
136
Refrigerant Bypass Control
137
Startup Control
137
Frequency Control
138
Defrost Operation Control
139
Continuous Heating Mode Control
142
Outdoor Unit Fan Control
144
Refrigerant Recovery Control
144
Control at Initial Startup
145
Control of Controller Cooling Function (Electronic Expansion Valve <LEV9>)
145
Expansion Valve Control (Lev2A, Lev2B, and Lev2D)
145
Injection Control (Linear Expansion Valve <LEV4>)
145
Emergency Operation Mode
147
Operation Mode
149
Control of IH Energization Without the Compressor in Operation
150
Demand Control
150
BC Controller Control
151
Chapter 6 Test Run
152
Read before Test Run
154
Operation Characteristics and Refrigerant Charge
155
Checking the Refrigerant Charge During Operation
156
Evaluating and Adjusting Refrigerant Charge
156
Maximum Refrigerant Charge
156
Refrigerant Overcharge and Undercharge
156
Refrigerant Charge Adjustment Mode
157
The Following Symptoms Are Normal
159
Chapter 7 Troubleshooting Using Error Codes
160
Error Code and Preliminary Error Code Lists
164
Error Code Definitions and Solutions: Codes [0 - 999]
169
Error Code Definitions and Solutions: Codes [1000 - 1999]
169
Error Code [0403]
169
Error Code [0404]
170
Error Code [1102]
170
Error Code [1301]
171
Error Code [1302] (During Operation)
173
Error Code [1302] (at Startup)
174
Error Code [1500]
174
Error Code Definitions and Solutions: Codes [2000 - 2999]
175
Error Code [2500] (Models with a Drain Sensor)
175
Error Code [2500] (Models with a Float Switch)
176
Error Code [2502] (Models with a Drain Sensor)
177
Error Code [2502] (Models with a Float Switch)
178
Error Code [2503]
179
Error Code [2600]
179
Error Code [2601]
180
Error Code Definitions and Solutions: Codes [3000 - 3999]
181
Error Code [3121]
181
Error Code [3511]
182
Error Code [3512]
182
Error Code Definitions and Solutions: Codes [4000 - 4999]
184
Error Code [4102]
184
Error Code [4106]
185
Error Code [4109]
185
Error Code [4114]
185
Error Code [4116]
185
Error Code [4121]
186
Error Code [4124]
186
Error Codes [4220, 4225, 4226] Detail Code 108
188
Error Codes [4220, 4225, 4226] Detail Code 108
189
Error Code [4220] Detail Code 110
190
Error Codes [4220, 4225, 4226] Detail Code 109
190
Error Code [4220] Detail Code 123
191
Error Codes [4220, 4225, 4226] Detail Code 111, 112
191
Error Code [4220] Detail Code 129
192
Error Codes [4220, 4225, 4226] Detail Code 131
192
Error Code [4230] Detail Code 125
193
Error Codes [4235, 4236] Detail Code 125
193
Error Codes [4240, 4245, 4246]
194
Error Codes [4250, 4255, 4256] Detail Code 101
195
Error Codes [4250, 4255, 4256] Detail Code 104
196
Error Codes [4250, 4255, 4256] Detail Code 105
197
Error Codes [4250, 4255, 4256] Detail Codes 106 and 107
198
Error Code [4260]
200
Error Code Definitions and Solutions: Codes [5000 - 5999]
201
Error Codes [5101, 5102, 5103, 5104]
201
Error Codes [5103,5104,5105,5107,5115]
202
Error Code [5110]
203
Error Codes [5111,5112,5115,5116]
203
Error Code [5201,5203]
204
Error Code [5201]
204
Error Code [5301] Detail Code 115
205
Error Code [5301] Detail Code 117
206
Error Code [5301] Detail Code 119
206
Error Code [5301] Detail Code 120
207
Error Code [5301] Detail Code 127
207
Error Code [5701]
208
Error Codes [5305, 5306] Detail Code 135
208
Error Codes [5305, 5306] Detail Code 136
208
Error Code Definitions and Solutions: Codes [6000 - 6999]
209
Error Code [6201]
209
Error Code [6202]
209
Error Code [6600]
209
Error Code [6601]
210
Error Code [6602]
210
Error Code [6603]
211
Error Code [6606]
212
Error Code [6607] Error Source Address = BC Controller (BC)
213
Error Code [6607] Error Source Address = Outdoor Unit (OC)
213
Error Code [6607] Error Source Address = Indoor Unit (IC)
214
Error Code [6607] Error Source Address = LOSSNAY (LC)
216
Error Code [6607] Error Source Address = ME Remote Controller
217
Error Code [6607] Error Source Address = System Controller
218
Error Code [6607] All Error Source Addresses
219
Error Code [6607] no Error Source Address
220
Error Code [6608]
221
Error Code [6831]
221
Error Code [6832]
222
Error Code [6833]
222
Error Code [6834]
223
Error Code [6840]
223
Error Code [6841]
224
Error Code [6842]
224
Error Code [6843]
225
Error Code [6846]
225
Error Code Definitions and Solutions: Codes [7000 - 7999]
230
Error Code [7100]
230
Error Code [7101]
231
Error Code [7102]
232
Error Code [7105]
233
Error Code [7106]
233
Error Code [7107]
233
Error Code [7110]
233
Error Code [7111]
234
Error Code [7113]
235
Error Code [7117]
235
Error Code [7130]
236
Chapter 8 Troubleshooting Based on Observed Symptoms
240
MA Remote Controller Problems
242
The LCD Does Not Light up
242
The LCD Momentarily Lights up and then Goes off
243
HO" and "PLEASE WAIT" Do Not Go off the Screen
244
Air Conditioning Units Do Not Operate When the on Button Is Pressed
245
ME Remote Controller Problems
246
The LCD Does Not Light up
246
The LCD Momentarily Lights up and then Goes off
247
HO" or "Waiting for
248
88", "Request Denied." Appears on the LCD
250
Refrigerant Control Problems
251
Units in the Cooling Mode Do Not Operate at Expected Capacity
251
Units in the Heating Mode Do Not Operate at Expected Capacity
253
Outdoor Units Stop at Irregular Times
255
Checking Transmission Waveform and for Electrical Noise Interference
256
M-Net
256
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
259
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
259
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
261
Troubleshooting Solenoid Valve Problems
263
Troubleshooting Outdoor Unit Fan Problems
264
General Overview on LEV Operation
265
Troubleshooting LEV Problems
265
Possible Problems and Solutions
268
Coil Removal Instructions
269
Pressure Sensor
271
Troubleshooting Problems with Major Components on BC Controller
271
Temperature Sensor
273
Troubleshooting Flowchart for Levs
277
Troubleshooting Flowchart for Solenoid Valves
282
BC Controller Transformer
284
8-10 Troubleshooting Inverter Problems
285
Inverter-Related Problems and Solutions
285
Checking the Inverter for Damage at No-Load
288
Checking the Inverter for Damage During Compressor Operation
288
Checking the Fan Board Error Detection Circuit at no Load
289
Checking the Fan Board for Damage at no Load
289
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
289
Checking the Fan Board for Damage with Load
290
Checking the Installation Conditions
291
Solutions for the Main Breaker Trip
291
Solutions for the Main Earth Leakage Breaker Trip
292
Troubleshooting Problems with IGBT Module
294
Checking the Fan Inverter Heatsink for Clogging
297
8-11 Control Circuit
298
Control Power Supply Function Block
298
Indoor Unit
299
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
300
8-12 Measures for Refrigerant Leakage
304
8-13 Parts Replacement Instructions
306
Ensuring Maintenance Space (Preparation for the Maintenance of Refrigerant Circuit Parts)
306
Notes on Wiring Installation
307
Removal Instructions for the Control Box
323
Transformer Box Replacement Instructions
325
Maintenance Procedures for the Heat Exchanger
329
8-14 BC Controller Maintenance Instructions
338
Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit
341
Chapter 9 Usb Function
342
Function Overview
344
Service Overview
344
System Structure
345
Necessary Materials
346
Operation Data Collection and Storage Functions
347
Preparation
347
Storing Data on a USB Memory Stick
347
Collecting Operation Data
349
Precautions
350
Software Rewrite Function on the USB
351
Preparation
351
Rewriting Software
351
Precautions
352
Maintenance LED Display and Troubleshooting
353
Maintenance LED Display Content List
353
Troubleshooting
356
10-1 LED Status Indicators
362
Chapter 10 LED Status Indicators on the Outdoor Unit Circuit Board
362
Initial Led Display
363
Clock Memory Function
364
LED Status Indicators Table
365
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