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HP120TNU-A
Mitsubishi Electric HP120TNU-A Manuals
Manuals and User Guides for Mitsubishi Electric HP120TNU-A. We have
1
Mitsubishi Electric HP120TNU-A 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
10
Table of Contents
2
Safety Precautions
14
Chapter 1 Check before Servicing
14
Preparation for Piping Work
14
Read before Servicing
15
Tool Preparation
16
Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil
16
Piping Materials
17
Storage of Piping Materials
17
Pipe Processing
18
Characteristics of the New and Conventional Refrigerants
19
Refrigerant Oil
20
Working with Refrigerant Piping
20
Pipe Brazing
21
Air Tightness Test
22
Vacuum Drying
24
Refrigerant Charging
25
Precautions for Wiring
27
Cautionary Notes On Installation Environment and Maintenance
28
Chapter 2 Restrictions
30
System Configurations
31
Types and Maximum Allowable Length of Cables
33
Switch Settings
34
Address Settings List
34
M-NET Address Settings
35
Outdoor Unit Centralized Controller Switch Setting
35
Outdoor Unit Power Jumper Connector Connection
36
Miscellaneous Settings
36
Room Temperature Detection Position Selection
36
Start/Stop Control of Indoor Units
37
Various Control Methods Using the Signal Input/Output Connector On Outdoor Unit
40
Demand Control Overview
41
System Connection Example
42
Example System with an MA Remote Controller
42
Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
44
Single Refrigerant System with Two or More LOSSNAY Units
46
Grouped Operation of Units in Separate Refrigerant Circuits
48
System with a Connection of System Controller to Centralized Control Transmission Line
50
System with a Connection of System Controller to Indoor-Outdoor Transmission Line
52
System with Multiple BC Controllers
55
Example System with an ME Remote Controller
55
System with a Connection of System Controller to Centralized Control Transmission Line
57
Example System with an MA and an ME Remote Controller
57
System with a Connection of System Controller to Centralized Control Transmission Line
60
2-10 Restrictions On Refrigerant Pipes
60
Restrictions On Refrigerant Pipe Length
67
Restrictions On Refrigerant Pipe Size
68
BC Controller Connection Method
75
Outdoor Twinning Kit
76
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
78
External Appearance and Refrigerant Circuit Components of Outdoor Unit
78
External Appearance of Outdoor Unit
79
Outdoor Unit Refrigerant Circuits
80
Outdoor Unit Refrigerant Circuit Diagrams
81
Functions of the Major Components of Outdoor Unit
84
Functions of the Major Components of Indoor Unit
85
External Appearance and Refrigerant Circuit Components of BC Controller
88
BC Controller Refrigerant Circuit Diagrams
90
Functions of the Major Components of BC Controller
94
Chapter 4 Electrical Components and Wiring Diagrams
96
Outdoor Unit Circuit Board Arrangement
96
Outdoor Unit Control Box
99
Control Board
99
Outdoor Unit Circuit Board Components
100
Power-Supply Board (PS Board)
101
Inverter Board (INV Board)
103
Fan Board
105
Noise Filter
107
Capacitor Board (CAP Board)
109
Outdoor Unit Electrical Wiring Diagrams
111
Transmission Booster Electrical Wiring Diagrams
112
BC Controller Circuit Board Arrangement
112
BC Controller Control Box
113
BC Board
113
BC Controller Circuit Board Components
114
Four-Relay Board
114
Ten-Relay Board
115
BC Controller Electrical Wiring Diagrams
124
Chapter 5 Control
126
Dipswitch Functions and Factory Settings
126
Outdoor Unit Switch Functions and Factory Settings
132
Indoor Unit Switch Functions and Factory Settings
133
Remote Controller Switch Functions and Factory Settings
135
BC Controller Switch Settings
136
Initial Control
136
Outdoor Unit Control
136
Overview
136
Rotation Control
137
Refrigerant Bypass Control
137
Startup Control
138
Frequency Control
139
Defrost Operation Control
142
Continuous Heating Mode Control
144
Outdoor Unit Fan Control
144
Refrigerant Recovery Control
145
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>)
147
Emergency Operation Mode
149
Operation Mode
150
Control of IH Energization Without the Compressor in Operation
150
Demand Control
151
BC Controller Control
152
Chapter 6 Test Run
154
Read before Test Run
155
Operation Characteristics and Refrigerant Charge
156
Checking the Refrigerant Charge During Operation
156
Evaluating and Adjusting Refrigerant Charge
156
Maximum Refrigerant Charge
156
Refrigerant Overcharge and Undercharge
157
Refrigerant Charge Adjustment Mode
159
The Following Symptoms Are Normal
160
Chapter 7 Troubleshooting Using Error Codes
164
Error Code and Preliminary Error Code Lists
169
Error Code Definitions and Solutions: Codes [0 - 999]
169
Error Code Definitions and Solutions: Codes [1000 - 1999]
169
Error Code [0403]
170
Error Code [0404]
170
Error Code [1102]
171
Error Code [1301]
173
Error Code [1302] (During Operation)
174
Error Code [1302] (At Startup)
174
Error Code [1500]
175
Error Code Definitions and Solutions: Codes [2000 - 2999]
175
Error Code [2500] (Models with a Drain Sensor)
176
Error Code [2500] (Models with a Float Switch)
177
Error Code [2502] (Models with a Drain Sensor)
178
Error Code [2502] (Models with a Float Switch)
179
Error Code [2503]
179
Error Code [2600]
180
Error Code [2601]
181
Error Code Definitions and Solutions: Codes [3000 - 3999]
181
Error Code [3121]
182
Error Code [3511]
182
Error Code [3512]
184
Error Code Definitions and Solutions: Codes [4000 - 4999]
184
Error Code [4102]
185
Error Code [4106]
185
Error Code [4109]
185
Error Code [4114]
185
Error Code [4116]
186
Error Code [4121]
186
Error Code [4124]
188
Error Codes [4220, 4225, 4226] Detail Code 108
189
Error Codes [4220, 4225, 4226] Detail Code 108
190
Error Code [4220] Detail Code 110
190
Error Codes [4220, 4225, 4226] Detail Code 109
191
Error Code [4220] Detail Code 123
191
Error Codes [4220, 4225, 4226] Detail Code 111, 112
192
Error Code [4220] Detail Code 129
192
Error Codes [4220, 4225, 4226] Detail Code 131
193
Error Code [4230] Detail Code 125
193
Error Codes [4235, 4236] Detail Code 125
194
Error Codes [4240, 4245, 4246]
195
Error Codes [4250, 4255, 4256] Detail Code 101
196
Error Codes [4250, 4255, 4256] Detail Code 104
197
Error Codes [4250, 4255, 4256] Detail Code 105
198
Error Codes [4250, 4255, 4256] Detail Codes 106 and 107
200
Error Code [4260]
201
Error Code Definitions and Solutions: Codes [5000 - 5999]
201
Error Codes [5101, 5102, 5103, 5104]
202
Error Codes [5103,5104,5105,5107,5115]
203
Error Code [5110]
203
Error Codes [5111,5112,5115,5116]
204
Error Code [5201,5203]
204
Error Code [5201]
205
Error Code [5301] Detail Code 115
206
Error Code [5301] Detail Code 117
206
Error Code [5301] Detail Code 119
207
Error Code [5301] Detail Code 120
207
Error Code [5301] Detail Code 127
208
Error Code [5701]
208
Error Codes [5305, 5306] Detail Code 135
208
Error Codes [5305, 5306] Detail Code 136
209
Error Code Definitions and Solutions: Codes [6000 - 6999]
209
Error Code [6201]
209
Error Code [6202]
209
Error Code [6600]
210
Error Code [6601]
210
Error Code [6602]
211
Error Code [6603]
212
Error Code [6606]
213
Error Code [6607] Error Source Address = BC Controller (BC)
213
Error Code [6607] Error Source Address = Outdoor Unit (OC)
214
Error Code [6607] Error Source Address = Indoor Unit (IC)
216
Error Code [6607] Error Source Address = LOSSNAY (LC)
217
Error Code [6607] Error Source Address = ME Remote Controller
218
Error Code [6607] Error Source Address = System Controller
219
Error Code [6607] All Error Source Addresses
220
Error Code [6607] No Error Source Address
221
Error Code [6608]
221
Error Code [6831]
222
Error Code [6832]
222
Error Code [6833]
223
Error Code [6834]
223
Error Code [6840]
224
Error Code [6841]
224
Error Code [6842]
225
Error Code [6843]
225
Error Code [6846]
230
Error Code Definitions and Solutions: Codes [7000 - 7999]
230
Error Code [7100]
231
Error Code [7101]
232
Error Code [7102]
233
Error Code [7105]
233
Error Code [7106]
233
Error Code [7107]
233
Error Code [7110]
234
Error Code [7111]
235
Error Code [7113]
235
Error Code [7117]
236
Error Code [7130]
240
Chapter 8 Troubleshooting Based On Observed Symptoms
242
MA Remote Controller Problems
242
The LCD Does Not Light Up
243
The LCD Momentarily Lights Up and Then Goes Off
244
HO" and "PLEASE WAIT" Do Not Go Off the Screen
245
Air Conditioning Units Do Not Operate When the ON Button Is Pressed
246
ME Remote Controller Problems
246
The LCD Does Not Light Up
247
The LCD Momentarily Lights Up and Then Goes Off
248
HO" or "Waiting for
250
88", "Request Denied." Appears On the LCD
251
Refrigerant Control Problems
251
Units in the Cooling Mode Do Not Operate at Expected Capacity
253
Units in the Heating Mode Do Not Operate at Expected Capacity
255
Outdoor Units Stop at Irregular Times
256
Checking Transmission Waveform and for Electrical Noise Interference
256
M-Net
259
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
259
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
261
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
263
Troubleshooting Solenoid Valve Problems
264
Troubleshooting Outdoor Unit Fan Problems
265
General Overview On LEV Operation
265
Troubleshooting LEV Problems
268
Possible Problems and Solutions
269
Coil Removal Instructions
271
Pressure Sensor
271
Troubleshooting Problems with Major Components On BC Controller
273
Temperature Sensor
277
Troubleshooting Flowchart for Levs
282
Troubleshooting Flowchart for Solenoid Valves
284
BC Controller Transformer
285
8-10 Troubleshooting Inverter Problems
285
Inverter-Related Problems and Solutions
288
Checking the Inverter for Damage at No-Load
288
Checking the Inverter for Damage During Compressor Operation
289
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
290
Checking the Fan Board for Damage with Load
291
Checking the Installation Conditions
291
Solutions for the Main Breaker Trip
292
Solutions for the Main Earth Leakage Breaker Trip
294
Troubleshooting Problems with IGBT Module
297
Checking the Fan Inverter Heatsink for Clogging
298
8-11 Control Circuit
298
Control Power Supply Function Block
299
Indoor Unit
300
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
304
8-12 Measures for Refrigerant Leakage
306
8-13 Parts Replacement Instructions
306
Ensuring Maintenance Space (Preparation for the Maintenance of Refrigerant Circuit Parts)
307
Notes On Wiring Installation
323
Removal Instructions for the Control Box
325
Transformer Box Replacement Instructions
329
Maintenance Procedures for the Heat Exchanger
338
8-14 BC Controller Maintenance Instructions
341
Troubleshooting Problems Using the LED Status Indicators On the Outdoor Unit
342
Chapter 9 Usb Function
344
Function Overview
344
Service Overview
345
System Structure
346
Necessary Materials
347
Operation Data Collection and Storage Functions
347
Preparation
347
Storing Data On a USB Memory Stick
349
Collecting Operation Data
350
Precautions
351
Software Rewrite Function On the USB
351
Preparation
351
Rewriting Software
352
Precautions
353
Maintenance LED Display and Troubleshooting
353
Maintenance LED Display Content List
356
Troubleshooting
362
Chapter 10 LED Status Indicators On the Outdoor Unit Circuit Board
362
10-1 LED Status Indicators
363
Initial Led Display
364
Clock Memory Function
365
LED Status Indicators Table
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