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Mitsubishi Electric PUHY-HP72 Manuals
Manuals and User Guides for Mitsubishi Electric PUHY-HP72. We have
1
Mitsubishi Electric PUHY-HP72 manual available for free PDF download: Service Handbook
Mitsubishi Electric PUHY-HP72 Service Handbook (324 pages)
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 10.3 MB
Table of Contents
Table of Contents
8
Safety Precautions
2
Chapter 1 Check before Servicing
12
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
Working with Refrigerant Piping
18
Pipe Brazing
18
Air Tightness Test
19
Vacuum Drying
20
Refrigerant Charging
21
Precautions for Wiring
22
Cautionary Notes on Installation Environment and Maintenance
24
Chapter 2 Restrictions
26
System Configurations
28
Types and Maximum Allowable Length of Cables
29
Switch Settings
30
Address Settings List
31
M-NET Address Settings
31
Outdoor Unit Centralized Controller Switch Setting
32
Outdoor Unit Power Jumper Connector Connection
32
Room Temperature Detection Position Selection
32
Miscellaneous Settings
33
Start/Stop Control of Indoor Units
33
Various Control Methods Using the Signal Input/Output Connector on Outdoor Unit
34
Demand Control Overview
36
System Connection Example
38
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
56
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
58
External Appearance and Refrigerant Circuit Components of Outdoor Unit
58
External Appearance and Refrigerant Circuit Components of Outdoor Unit
60
External Appearance of Outdoor Unit
60
Outdoor Unit Refrigerant Circuits
61
Outdoor Unit Refrigerant Circuit Diagrams
62
Functions of the Major Components of Outdoor Unit
63
Functions of the Major Components of Indoor Unit
66
Chapter 4 Electrical Components and Wiring Diagrams
68
Outdoor Unit Circuit Board Arrangement
70
Outdoor Unit Control Box
70
Control Board
73
Outdoor Unit Circuit Board Components
73
Power-Supply Board (PS Board)
74
Inverter Board (INV Board)
75
Fan Board
77
Noise Filter
79
Capacitor Board (CAP Board)
81
Outdoor Unit Electrical Wiring Diagrams
83
Transmission Booster Electrical Wiring Diagrams
85
Chapter 5 Control
86
Dipswitch Functions and Factory Settings
88
Outdoor Unit Switch Functions and Factory Settings
88
Indoor Unit Switch Functions and Factory Settings
93
Remote Controller Switch Functions and Factory Settings
94
Initial Control
96
Outdoor Unit Control
96
Overview
96
Rotation Control
96
Startup Control
96
Refrigerant Bypass Control
97
Frequency Control
99
Defrost Operation Control
100
Continuous Heating Mode Control
102
Outdoor Unit Fan Control
103
Refrigerant Recovery Control
103
Control at Initial Startup
104
Control of Controller Cooling Function (Electronic Expansion Valve <LEV9>)
104
Injection Control (Linear Expansion Valve <LEV4>)
104
Refrigerant Flow Control (Linear Expansion Valves <Lev2A and Lev2B>)
104
Subcool Coil Control (Linear Expansion Valve <LEV1>)
104
Emergency Operation Mode
106
Control of IH Energization Without the Compressor in Operation
108
Demand Control
108
Operation Mode
108
Chapter 6 Test Run
110
Read before Test Run
112
Checking the Refrigerant Charge During Operation
113
Evaluating and Adjusting Refrigerant Charge
113
Operation Characteristics and Refrigerant Charge
113
Refrigerant Overcharge and Undercharge
113
Maximum Refrigerant Charge
114
Refrigerant Charge Adjustment Mode
115
The Following Symptoms Are Normal
117
Chapter 7 Troubleshooting Using Error Codes
118
Error Code and Preliminary Error Code Lists
122
Error Code Definitions and Solutions: Codes [0 - 999]
127
Error Code [0403]
127
Error Code [0404]
128
Error Code Definitions and Solutions: Codes [1000 - 1999]
129
Error Code [1102]
129
Error Code [1301]
130
Error Code [1302] (During Operation)
131
Error Code [1302] (at Startup)
132
Error Code [1500]
132
Error Code Definitions and Solutions: Codes [2000 - 2999]
133
Error Code [2500] (Models with a Drain Sensor)
133
Error Code [2500] (Models with a Float Switch)
134
Error Code [2502] (Models with a Drain Sensor)
135
Error Code [2502] (Models with a Float Switch)
136
Error Code [2503]
137
Error Code [2600]
137
Error Code [2601]
138
Error Code Definitions and Solutions: Codes [3000 - 3999]
139
Error Code [3121]
139
Error Code [3511]
140
Error Code [3512]
140
Error Code Definitions and Solutions: Codes [4000 - 4999]
142
Error Code [4102]
142
Error Code [4106]
143
Error Code [4109]
143
Error Code [4114]
143
Error Code [4116]
143
Error Code [4121]
144
Error Code [4124]
144
Error Codes [4220, 4225, 4226] Detail Code 108
146
Error Codes [4240, 4245, 4246]
152
Error Codes [4250, 4255, 4256] Detail Codes 106 and 107
156
Error Code [4260]
158
Error Code Definitions and Solutions: Codes [5000 - 5999]
159
Error Codes [5101, 5102, 5103, 5104]
159
Error Codes [5102,5103,5104,5105,5106,5107,5115]
160
Error Code [5110]
161
Error Code [5201]
161
Error Code Definitions and Solutions: Codes [6000 - 6999]
166
Error Code [6201]
166
Error Code [6202]
166
Error Code [6600]
167
Error Code [6601]
167
Error Code [6602]
167
Error Code [6603]
167
Error Code [6606]
168
Error Code [6607] Error Source Address = Outdoor Unit (OC)
170
Error Code [6607] Error Source Address = Indoor Unit (IC)
171
Error Code [6607] Error Source Address = LOSSNAY (LC)
173
Error Code [6607] Error Source Address = ME Remote Controller
174
Error Code [6607] Error Source Address = System Controller
175
Error Code [6607] All Error Source Addresses
176
Error Code [6607] no Error Source Address
177
Error Code [6608]
178
Error Code [6831]
178
Error Code [6832]
179
Error Code [6833]
179
Error Code [6834]
180
Error Code [6840]
180
Error Code [6841]
181
Error Code [6842]
181
Error Code [6843]
182
Error Code [6846]
182
Error Code Definitions and Solutions: Codes [7000 - 7999]
187
Error Code [7100]
187
Error Code [7101]
188
Error Code [7102]
189
Error Code [7105]
190
Error Code [7106]
190
Error Code [7110]
190
Error Code [7111]
190
Error Code [7113]
191
Error Code [7117]
191
Error Code [7130]
192
Chapter 8 Troubleshooting Based on Observed Symptoms
196
MA Remote Controller Problems
198
The LCD Does Not Light up
198
The LCD Momentarily Lights up and then Goes off
199
HO" and "PLEASE WAIT" Do Not Go off the Screen
200
Air Conditioning Units Do Not Operate When the on Button Is Pressed
201
ME Remote Controller Problems
202
The LCD Does Not Light up
202
The LCD Momentarily Lights up and then Goes off
203
HO" or "Waiting for
204
88", "Request Denied." Appears on the LCD
206
Refrigerant Control Problems
207
Units in the Cooling Mode Do Not Operate at Expected Capacity
207
Units in the Heating Mode Do Not Operate at Expected Capacity
209
Outdoor Units Stop at Irregular Times
211
Checking Transmission Waveform and for Electrical Noise Interference
212
M-Net
212
MA Remote Controller
214
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
215
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
215
High-Pressure Sensor Configuration (63HS1)
216
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
217
Low-Pressure Sensor Configuration (63LS)
218
Troubleshooting Solenoid Valve Problems
219
Troubleshooting Outdoor Unit Fan Problems
221
General Overview on LEV Operation
222
Troubleshooting LEV Problems
222
Possible Problems and Solutions
225
Coil Removal Instructions
226
Inverter-Related Problems and Solutions
228
Troubleshooting Inverter Problems
228
Checking the Inverter Board Error Detection Circuit
230
Checking the Inverter for Damage at No-Load
230
Checking the Fan Motor for Ground Fault and Coil Resistance Problems
231
Checking the Inverter for Damage During Compressor Operation
231
Checking the Fan Board Error Detection Circuit at no Load
232
Checking the Fan Board for Damage at no Load
232
Checking the Fan Board for Damage with Load
233
Checking the Installation Conditions
234
Solutions for the Main Breaker Trip
234
Solutions for the Main Earth Leakage Breaker Trip
235
Simple Check on Inverter Circuit Components
236
Troubleshooting Problems with IGBT Module
237
Checking the Fan Inverter Heatsink for Clogging
240
8-10 Control Circuit
241
Control Power Supply Function Block
241
Indoor Unit
242
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
243
8-11 Measures for Refrigerant Leakage
247
8-12 Parts Replacement Instructions
249
Ensuring Maintenance Space (Preparation for the Maintenance of Refrigerant Circuit Parts)
249
Notes on Wiring Installation
250
Four-Way Valve and Check Valve Replacement Procedure
251
Compressor Replacement Procedure
259
Removal Instructions for the Control Box
261
Transformer Box Replacement Instructions
263
Maintenance Procedure for the Drain Pan
265
Maintenance Procedures for the Heat Exchanger
267
Accumulator Replacement Procedure
274
Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit
276
Chapter 9 Usb Function
278
Function Overview
280
Service Overview
280
System Structure
281
Necessary Materials
282
Operation Data Collection and Storage Functions
283
Preparation
283
Storing Data on a USB Memory Stick
283
Collecting Operation Data
285
Precautions
286
Software Rewrite Function on the USB
287
Preparation
287
Rewriting Software
287
Precautions
288
Maintenance LED Display and Troubleshooting
289
Maintenance LED Display Content List
289
Troubleshooting
292
10-1 LED Status Indicators
298
Chapter 10 LED Status Indicators on the Outdoor Unit Circuit Board
298
Initial Led Display
299
Clock Memory Function
300
LED Status Indicators Table
301
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