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PUHY-M350YNW-A1
Mitsubishi Electric PUHY-M350YNW-A1 Manuals
Manuals and User Guides for Mitsubishi Electric PUHY-M350YNW-A1. We have
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Mitsubishi Electric PUHY-M350YNW-A1 manual available for free PDF download: Service Handbook
Mitsubishi Electric PUHY-M350YNW-A1 Service Handbook (436 pages)
Brand:
Mitsubishi Electric
| Category:
Air Conditioner
| Size: 44.3 MB
Table of Contents
Table of Contents
8
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
Storage of Piping Materials
15
Characteristics of the New and Conventional Refrigerants
16
Precautions for Handling Equipment Using R32
17
Refrigerant Oil
24
Working with Refrigerant Piping
25
Pipe Brazing
25
Air Tightness Test
26
Vacuum Drying
27
Refrigerant Charging
29
Water Piping
30
Precautions for Wiring
33
Cautionary Notes on Installation Environment and Maintenance
35
Chapter 2 Restrictions
36
System Configurations
38
Types and Maximum Allowable Length of Cables
39
Switch Settings
40
Address Settings List
41
M-NET Address Settings
41
Outdoor Unit Centralized Controller Switch Setting
42
Outdoor Unit Power Jumper Connector Connection
42
Room Temperature Detection Position Selection
42
Start/Stop Control of Indoor Units
43
Miscellaneous Settings
44
Various Control Methods Using the Signal Input/Output Connector on Outdoor Unit
44
Demand Control Overview
46
System Connection Example
47
Example System with an MA Remote Controller
48
Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
48
Single Refrigerant System with Two or more LOSSNAY Units
50
Grouped Operation of Units in Separate Refrigerant Circuits
52
System with a Connection of System Controller to Centralized Control Transmission Line
54
System with a Connection of System Controller to Indoor-Outdoor Transmission Line
56
Example System with an ME Remote Controller
58
System with a Connection of System Controller to Centralized Control Transmission Line
58
Example System with an MA and an ME Remote Controller
60
System with a Connection of System Controller to Centralized Control Transmission Line
60
2-10 Restrictions on Refrigerant Pipes
62
Restrictions on Refrigerant Pipe Length
62
Restrictions on Refrigerant Pipe Size
63
Restrictions on Refrigerant Pipe and Water Pipe Size
64
Hydro Unit Connection Method
65
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
66
External Appearance and Refrigerant Circuit Components of Outdoor Unit
68
External Appearance of Outdoor Unit
68
Outdoor Unit Refrigerant Circuits
71
Outdoor Unit Refrigerant Circuit Diagrams
76
Functions of the Major Components of Outdoor Unit
80
Functions of the Major Components of Indoor Unit
84
External Appearance and Refrigerant Circuit Components of Hydro Unit
85
Hydro Unit Refrigerant Circuit Diagrams
87
Functions of the Major Components of Hydro Unit
88
Chapter 4 Electrical Components and Wiring Diagrams
90
Outdoor Unit Circuit Board Arrangement
92
Outdoor Unit Control Box
92
Control Board
97
Outdoor Unit Circuit Board Components
97
Power-Supply Board (PS Board)
98
Inverter Board (INV Board)
100
Fan Board
103
Noise Filter
104
Filter Board
106
Capacitor Board (CAP Board)
107
Outdoor Unit Electrical Wiring Diagrams
108
Transmission Booster Electrical Wiring Diagrams
111
Hydro Unit Circuit Board Arrangement
112
Hydro Unit Control Box
112
Control Board
113
Hydro Unit Circuit Board Components
113
Power Supply Board (PS Board)
114
Inverter Board (INV Board)
115
Hydro Unit Electrical Wiring Diagrams
116
Chapter 5 Control
118
Dipswitch Functions and Factory Settings
120
Outdoor Unit Switch Functions and Factory Settings
120
Indoor Unit Switch Functions and Factory Settings
125
Remote Controller Switch Functions and Factory Settings
126
Switch Functions <Hydro Unit
128
Initial Control
130
Outdoor Unit Control
130
Overview
130
Startup Control
130
Refrigerant Bypass Control
131
Frequency Control
133
Defrost Operation Control
134
Continuous Heating Mode Control
137
Control of Controller Cooling Function (Electronic Expansion Valve <LEV9>)
138
Outdoor Unit Fan Control
138
Refrigerant Flow Control (Linear Expansion Valves <Lev2A, Lev2B, and Lev2C>)
138
Refrigerant Recovery Control
138
Subcool Coil Control (Linear Expansion Valve <LEV1>)
138
Control at Initial Startup
139
Injection Control (Linear Expansion Valve <LEV4>)
139
Operation Mode
139
Control of IH Energization Without the Compressor in Operation
140
Demand Control
140
Hydro Unit Control
141
Water Pump Control
141
Bypass Control
142
Plate Heat Exchanger Control
142
Defrost Operation Control
143
Backup Control
146
Refrigerant Recovery Control
146
Water Pump Protection Control
146
Chapter 6 Test Run
148
Read before Test Run
150
Checking the Refrigerant Charge During Operation
151
Evaluating and Adjusting Refrigerant Charge
151
Operation Characteristics and Refrigerant Charge
151
Refrigerant Overcharge and Undercharge
151
Maximum Refrigerant Charge
152
Refrigerant Charge Adjustment Mode
153
Calculation of the Amount of Additional Refrigerant
155
The Following Symptoms Are Normal
157
Debris Removal Operation
158
Hydro Unit Replacement Instructions
158
The Air Vent Operation
159
Chapter 7 Troubleshooting Using Error Codes
160
Error Code and Preliminary Error Code Lists
164
Error Code Definitions and Solutions: Codes [0 - 999]
171
Error Code [0403]
171
Error Code [0404]
172
Error Code Definitions and Solutions: Codes [1000 - 1999]
173
Error Code [1102]
173
Error Code [1301]
174
Error Code [1302] (During Operation)
175
Error Code [1302] (at Startup)
176
Error Code [1500]
176
Error Code Definitions and Solutions: Codes [2000 - 2999]
177
Error Code [2500] (Models with a Drain Sensor)
177
Error Code [2500] (Models with a Float Switch)
178
Error Code [2501] (Water Pump Fault)
179
Error Code [2502] (Models with a Drain Sensor)
180
Error Code [2502] (Models with a Float Switch)
181
Error Code [2503]
182
Error Code [2512] (Control Valve Failure) (Indoor Unit)
183
Error Code [2519]
183
Error Code [2520]
184
Error Code [2600]
184
Error Code [2601]
185
Error Code Definitions and Solutions: Codes [3000 - 3999]
186
Error Code [3121]
186
Error Code [3511]
187
Error Code [3512]
187
Error Code Definitions and Solutions: Codes [4000 - 4999]
189
Error Code [4102]
189
Error Code [4106]
190
Error Code [4109]
190
Error Code [4114]
190
Error Code [4116]
190
Error Code [4121]
191
Error Code [4124]
191
Error Code [4129] Detail Code 101
192
Error Code [4130]
193
Error Code [4131]
193
Error Codes [4240, 4245, 4246]
206
Error Codes [4250, 4255, 4256] Detail Codes 106 and 107
210
Error Code [4260]
212
Error Code Definitions and Solutions: Codes [5000 - 5999]
213
Error Codes [5101, 5102, 5103, 5104]
213
Error Codes [5102,5103,5104,5105,5106,5107,5115]
214
Error Code [5110]
215
Error Code [5111, 5113, 5132, 5135]
216
Error Code [5120]
216
Error Code [5201]
216
Error Code [5201]
217
Error Code [5202]
217
Error Code [5202, 5203]
218
Error Code [5701]
223
Error Code Definitions and Solutions: Codes [6000 - 6999]
224
Error Code [6201]
224
Error Code [6202]
224
Error Code [6600]
225
Error Code [6601]
225
Error Code [6602]
225
Error Code [6603]
225
Error Code [6606]
226
Error Code [6607] Error Source Address = Outdoor Unit (OC)
228
Error Code [6607] Error Source Address = Indoor Unit (IC)
229
Error Code [6607] Error Source Address = Hydro Unit (HU)
231
Error Code [6607] Error Source Address = LOSSNAY (LC)
232
Error Code [6607] Error Source Address = ME Remote Controller
233
Error Code [6607] Error Source Address = System Controller
234
Error Code [6607] All Error Source Addresses
235
Error Code [6607] no Error Source Address
236
Error Code [6608]
237
Error Code [6831]
237
Error Code [6832]
238
Error Code [6833]
238
Error Code [6834]
239
Error Code [6840]
239
Error Code [6841]
240
Error Code [6842]
240
Error Code [6843]
241
Error Code [6846]
241
Error Code [7100]
242
Error Code [7101]
242
Error Code [7102]
242
Error Code [7105]
242
Error Code [7106]
243
Error Code [7110]
243
Error Code [7111]
244
Error Code [7113]
244
Error Code [7117]
245
Error Code [7130]
245
Error Code Definitions and Solutions: Codes [7000 - 7999]
246
Chapter 8 Troubleshooting Based on Observed Symptoms
254
MA Remote Controller Problems
256
The LCD Does Not Light up
256
The LCD Momentarily Lights up and then Goes off
257
HO" and "PLEASE WAIT" Do Not Go off the Screen
258
Air Conditioning Units Do Not Operate When the on Button Is Pressed
259
ME Remote Controller Problems
260
The LCD Does Not Light up
260
The LCD Momentarily Lights up and then Goes off
261
HO" or "Waiting for
262
88", "Request Denied." Appears on the LCD
264
Refrigerant Control Problems
265
Units in the Cooling Mode Do Not Operate at Expected Capacity
265
Units in the Heating Mode Do Not Operate at Expected Capacity
267
Outdoor Units Stop at Irregular Times
269
Checking Transmission Waveform and for Electrical Noise Interference
270
M-Net
270
MA Remote Controller
272
Comparing the High-Pressure Sensor Measurement and Gauge Pressure
273
Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems
273
High-Pressure Sensor Configuration (63HS1)
274
Comparing the Low-Pressure Sensor Measurement and Gauge Pressure
275
Low-Pressure Sensor Configuration (63LS)
276
Troubleshooting Solenoid Valve Problems
277
Troubleshooting Outdoor Unit Fan Problems
279
General Overview on LEV Operation
280
Troubleshooting LEV, FCV Problems
280
General Overview on LEV Operation (Hydro Unit)
282
Possible Problems and Solutions
284
General Overview on FCV Operation (Indoor Unit)
285
Coil Removal Instructions
287
Pressure Sensor
289
Troubleshooting Problems with Major Components on Hydro Unit
289
Temperature Sensor
291
Troubleshooting Flowchart for LEV and Solenoid Valves
292
Water Pump
294
8-10 Troubleshooting Inverter Problems
295
Inverter-Related Problems and Solutions
295
Checking the Compressor for Ground Fault and Coil Resistance Problems
297
Checking the Inverter Board Error Detection Circuit
297
Checking the Inverter for Damage at No-Load
298
Checking the Inverter for Damage During Compressor Operation
299
Checking the Converter for Damage During Compressor Operation
301
Checking the Fan Board Error Detection Circuit at no Load
301
Checking the Fan Board for Damage at no Load
302
Checking the Fan Board for Damage with Load
303
Checking the Error-Detection Circuit on the Pump INV Board (Without Load)
304
Checking the Pump INV Board for Damage (Without Load)
304
Checking the Installation Conditions
305
Checking the Pump INV Board for Damage (During Pump Operation)
305
Solutions for the Main Breaker Trip
305
Solutions for the Main Earth Leakage Breaker Trip
306
Troubleshooting Problems with IGBT Module
308
Checking the Fan Inverter Heatsink for Clogging
313
8-11 Control Circuit
314
Control Power Supply Function Block
314
Troubleshooting Problems with Outdoor Unit Transmission Power Supply Circuit
318
8-12 Measures for Refrigerant Leakage
324
8-13 Parts Replacement Instructions
326
Ensuring Maintenance Space (Preparation for the Maintenance of Refrigerant Circuit Parts)
326
Notes on Wiring Installation
330
Four-Way Valve and Check Valve Replacement Procedure
334
Compressor Replacement Procedure
346
Removal Instructions for the Control Box
348
Maintenance Procedure for the Drain Pan
351
Maintenance Procedures for the Heat Exchanger
357
Accumulator Replacement Procedure
371
8-14 Hydro Unit Maintenance Instructions
375
Plate Heat Exchanger Replacement Procedure
375
Strainer Replacement Procedure
377
Pressure Sensor (Refrigerant) Replacement Procedure
378
Check Valve Replacement Procedure
379
Solenoid Valve and LEV Body Replacement Procedure
380
Pump Replacement Procedure
381
Solenoid Valve Coil Replacement Procedure
384
LEV Coils Replacement Procedure
385
Pressure Sensor (Water) Replacement Procedure
386
Water Purge Valve Replacement Procedure
387
Safe Valve Replacement Procedure
388
Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit
389
Chapter 9 Usb Function
390
Function Overview
392
Service Overview
392
System Structure
393
Necessary Materials
394
Operation Data Collection and Storage Functions
395
Preparation
395
Storing Data on a USB Memory Stick
395
Collecting Operation Data
397
Precautions
398
Software Rewrite Function on the USB
399
Preparation
399
Rewriting Software
399
Precautions
400
Maintenance LED Display and Troubleshooting
401
Maintenance LED Display Content List
401
Troubleshooting
404
Chapter 10 LED Status Indicators on the Outdoor Unit Circuit Board
410
LED Status Indicators (Outdoor Unit)
410
Initial LED Display
411
Clock Memory Function
412
How to Read the LED
413
LED Status Indicators (Hydro Unit)
413
LED Status Indicators Table
414
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