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KPI-502E3E
User Manuals: Hitachi KPI-502E3E Ventilation Unit
Manuals and User Guides for Hitachi KPI-502E3E Ventilation Unit. We have
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Hitachi KPI-502E3E Ventilation Unit manual available for free PDF download: Service Manual
Hitachi KPI-502E3E Service Manual (480 pages)
UTOPIA IVX PREMIUM / IVX STANDARD H(V)N(P/C)(E) SERIES
Brand:
Hitachi
| Category:
Air Conditioner
| Size: 32.95 MB
Table of Contents
Service Manual
1
Contents
3
Table of Contents
5
General Information
5
Unit Installation
5
Electrical Wiring
6
Piping Work and Refrigerant Charge
6
Control System
7
Troubleshooting
8
Spare Parts
9
Electrial Checks of Main Parts
13
Maintenance Notes
13
1 General Information
15
General Information
16
General Notes
16
Introduction
16
Environment-Friendly Units
16
Safety
17
Applied Symbols
17
Norms and Regulations
17
Unit Installation
17
Product Guide
18
Classification of Outdoor Unit Models
18
Classification of Indoor Unit Models
18
Product Guide: Outdoor Units
19
Outdoor Unit Accessory Code List
20
Control System
20
Product Guide: Indoor Units & Complementary Systems
21
Product Guide: Complementary Systems
24
2 Unit Installation
27
Safety Summary
28
Transportation of Outdoor Unit
29
Center of Gravity
30
Factory-Supplied Accessories for RAS-12HN(P/C)
31
Installation Space (Initial Ckeck)
32
Basic Sizes
32
Ras-(2-2.5)Hvnp / Ras-3Hvnc
33
Ras-3Hvnpe / Ras-(4-6)H(V)N(P/C)E / Ras-(8-10)Hn(P/C)E / Ras-12Hn(P/C)
34
Place Provision
37
Place Provision for RAS-(2-2.5)HVNP / RAS-3HVNC
37
Place Provision for RAS-3HVNPE / RAS-(4-6)H(V)N(P/C)E / RAS-(8-10)HN(P/C)E / RAS-12HN(P/C)
39
Optional Parts and Installation
43
Optional Parts and Installation for RAS-(2-2.5)HVNP / RAS-3HVNC
43
Optional Parts and Installation RAS-3HVNPE / RAS-(4-6)H(V)NCE
48
Optional Parts and Installation RAS-(4-6)H(V)NPE / RAS-(8-10)HN(P/C)E
53
Optional Parts and Installation RAS-12HN(P/C)
59
3 Piping Work and Refrigerant Charge
65
General Notes before Performing Pipe Work
66
Piping Materials
66
Three Principles on Refrigerant Piping Work
68
Suspension of Refrigerant Piping
68
Brazing Work
69
Piping Connection for Outdoor Unit
70
Ras-(2-2.5)Hvnp / Ras-3Hvnc
70
Ras-3Hvnpe / Ras-(4-6)H(V)N(P/C)E / Ras-(8-10)Hn(P/C)E / Ras-12Hn(P/C)
71
Rear Cover
73
Outdoor Unit Stop Valve
74
Refrigerant Piping Range
76
Refrigerant Piping Length
76
Piping System for Header Branch
76
Piping System for Line Branch
79
Combinations of Piping Size and Piping Length
80
Refrigerant Piping Size and Multikit/Distributor Selection
81
System Installation
84
Connecting Flare Adapter
85
Refrigerant Charge
86
Caution of the Pressure by Check Joint
87
Refrigerant Charge Quantity
88
Caution in Case of Refrigerant Leakage
92
Maximum Permitted Concentration of Hydrofluorocarbon (HFC)
92
Calculation of Refrigerant Concentration
92
Countermeasure for Refrigerant Leakage
92
Piping Work for Compatibility with the Piping of Current Installations Where Is Used R22 or R407C
93
Installation Procedure for Existing Pipes
93
When Existing Air-Conditioner Is a Product of Another Manufacturer
93
Permissible Range for Existing Air-Conditioning Pipes
94
Renewal Kit Selection Model
95
Drain Piping
99
Drain Discharging Boss
99
4 Electrical Wiring
101
General Notes
102
General Check
102
Electrical Wiring Connection for the Outdoor Unit
104
Setting the DIP Switches for the Outdoor Unit
106
Quantity and Position of DIP Switches
106
Function of the of DIP Switches and RSW Switches
107
Optional Functions
108
Jumpers
111
Led's Indication
111
Common Wiring
112
Electrical Wiring between Outdoor and Indoor Unit
112
Wire Size
113
H-LINK II System
115
Features
115
Specifications
115
DIP Switch Setting for Twin, Triple and Quad Systems
116
Examples of the System of Connection between H-LINK and H-LINK II Units
117
Examples of H-LINK II System
118
System Control
120
Individual Operation
120
Simultaneous Operation
121
Electrical Wiring Diagrams
122
RAS-(2-2.5)HVNP / RAS-3HVNC (1~ 230V 50Hz)
122
RAS-3HVNPE (1~ 230V 50Hz)
123
RAS-(4-6)HVNPE (1~ 230V 50Hz)
124
RAS-(4-6)HNPE (3N~ 400V 50Hz)
125
RAS-(4-6)HVNCE (1N~ 230V 50Hz)
126
RAS-(4-6)HNCE (3N~ 400V 50Hz)
127
RAS-(8-10)HN(P/C)E (3N~ 400V 50Hz)
128
RAS-12HNP (3N~ 400V 50Hz) - Preliminary Data
129
RAS-12HNC (3N~ 400V 50Hz) - Preliminary Data
130
5 Control System
131
Device Control System
132
Outdoor Units PCB
134
Ras-(2-2.5)Hvnp / Ras-3Hvnc
134
Ras-3Hvnpe
135
Ras-(4-6)H(V)Npe
136
Ras-(4-6)H(V)Nce
137
Ras-(8-10)Hn(P/C)E
138
RAS-12HNP - Preliminary Data
139
RAS-12HNC - Preliminary Data
140
Protection and Safety Control
141
Standard Operation Sequence
142
Cooling Operation
142
Dry Operation
144
Heating Operation
146
Automatic Cooling and Heating Operation
148
Defrost Operation Control
149
Standard Control Functions
152
Freezing Protection During Cooling Process or Dry Operation
152
Prevention Control for High Pressure Increase During Cooling Operation
153
Prevention Control for Excessively High Discharge Gas Temperature
154
Activation for Protection Device Control
155
Preheating Control of Compressor
156
Prevention Control for High Pressure Increase
157
6 Optional Functions
159
Optional Input and Output Signals (by 7-Segment Display)
160
Available Ports
160
Available Optional Signals
162
Setting of the Optional Signals
164
Description of Optional Signals
165
Optional Functions (by 7-Segment Display)
168
Setting of the Optional Functions
168
Description of the Optional Functions
171
Optional Functions (by Remote Control Switch)
175
7 Test Run
181
Checking Procedure before the Test Run
182
Test Run Procedure Using the Remote Control Switch (PC-ART)
184
Test Run Procedure Using the Remote Control Switch (PC-ARF)
186
Troubleshooting
188
Test Run Procedure Using the Wireless Remote Control Switch (PC-LH3A/B)
189
Test Run Procedure from the Outdoor Unit Side
191
Check List
193
Check List on Test Run
193
Check List on Compressor
194
8 Troubleshooting
197
Initial Troubleshooting
198
Checking by Means of the 7-Segment Display
198
Failure of the Power Supply to the Indoor Unit and the Remote Control Switch
199
Abnormal Transmission between the Remote Control Switch and the Indoor Unit
200
Abnormal Operation of the Devices
200
Troubleshooting Procedure
206
Alarm Display
206
Alarm Codes for the Outdoor and Indoor Units
207
Troubleshooting by Alarm Code for the Outdoor and Indoor Units
208
Alarm Codes for the KPI (E/H/X)3E Series and DX Interface
266
Troubleshooting in Check Mode
267
Troubleshooting Using the Remote Controller PC-ART
267
Troubleshooting Using the Remote Controller PC-ARF
277
Troubleshooting Using the 7 Segment Display
282
Checking Procedure for Main Parts
291
Procedure for Checking the DIP-IPM Inverter for Indoor and Outdoor Units
291
Checking Capacitors CB1 & CB2
297
Fault Diagnosis of DC Fan Motor
298
Checking Procedure for the Electronic Expansion Valve for Indoor and Outdoor Units
299
Checking Procedure for AC Fan Motor
299
Checking Procedure for Other Parts
300
9 Spare Parts
303
Ras-(2-2.5)Hvnp
304
Cycle and Structural Parts
304
Parts Table
305
Ras-3Hvnc
306
Cycle and Structural Parts
306
Parts Table
307
Ras-3Hvnpe
308
Cycle and Structural Parts
308
Electrical Parts
309
Parts Name
310
Ras-(4-6)H(V)Npe
311
Cycle and Structural Parts
311
Electrical Parts
312
Parts Name
314
Ras-(4-6)H(V)Nce
316
Cycle and Structural Parts
316
Electrical Parts
318
Parts Name
320
Ras-(8-10)Hn(P/C)E
322
Cycle and Structural Parts
322
Electrical Parts
324
Parts Name
325
Ras-12Hn(P/C)
328
Cycle and Structural Parts
328
Electrical Parts
329
Parts Name
330
10 Servicing
333
Introduction
337
Servicing for Outdoor Units RAS-(2-2.5)HVNP and RAS-3HVNC
338
Removing Pipe Cover
338
Removing
338
Removing Outdoor Fan
338
Removing the Compressor
339
Removing High Pressure Switch and Pressure Switch for Control
341
Removing Four-Way Valve Coil
342
Removing Electronic Expansion Valve Coil
342
Removing Electrical Components
343
Servicing for Premium Series
346
Outdoor Unit RAS-3HVNPE
346
Remove Outlet Grille
346
Removing Service Cover
346
Removing Bottom Service Cover and Rear Cover
347
Removing Upper Cover
347
Removing Outdoor Fan Motor
348
Removing Electrical Box
349
Removing the Compressor
350
Removing the High Pressure Switch and Pressure Switch for Control
353
Opening Electrical Box (P Plate)
354
Removing Reversing Valve Coil
354
Removing Electronic Expansion Valve Coil
355
Removing Solenoid Valve Coil (SVC)
355
Removing Reversing Valve
356
Removing Electrical Components
357
Removing Electronic Expansion Valve and Solenoid Valve
357
Removing Other Electrical Components
359
Outdoor Units RAS-(4-6)H(V)NPE
360
Removing Air Outlet Grille
360
Removing Service Cover
360
Removing the Bottom Service Cover and Rear Cover
361
Removing Upper Cover
361
Removing Outdoor Fan Motor
362
Removing Electrical Box
363
Removing the Compressor
364
Removing the High Pressure Switch and Pressure Switch for Control
367
Opening Electrical Box (P Plate)
368
Removing Reversing Valve Coil
368
Removing Electronic Expansion Valve Coil
369
Removing Solenoid Valve Coil (SVA and SVC)
369
Removing Reversing Valve
370
Removing Electronic Expansion Valve and Solenoid Valve
371
Removing Electrical Components
372
Removing Other Electrical Components
373
Oudoor Units RAS-(8-10)HNPE
374
Removing Air Outlet Grille
374
Removing Service Cover
374
Removing the Bottom Service Cover and Rear Cover
375
Removing Upper Cover
375
Removing Outdoor Fan Motor
376
Removing Electrical Box
377
Removing the Compressor
378
Opening Electrical Box (P-Mounting Plate)
381
Removing High Pressure Switch and Pressure Switch for Control
381
Removing Reversing Valve Coil
382
Removing Electronic Expansion Valve Coil
383
Removing Solenoid Valve Coil (SVA and SVC)
383
Removing Reversing Valve
384
Removing Electronic Expansion Valve and Solenoid Valve
385
Removing Electrical Components
386
Removing Other Electrical Components
388
Outdoor Units RAS-12HNP
389
Removing Air Outlet Grille
389
Removing Service Cover
389
Removing the Bottom Service Cover and Rear Cover
390
Removing Upper Cover
390
Removing Outdoor Fan Motor
391
Removing Electrical Box
392
Removing the Compressor
393
Removing High Pressure Switch and Pressure Switch for Control
396
Removing Reversing and Solenoid Valves Coils
397
Removing Electronic Expansion Valve Coil
398
Removing Reversing Valve
399
Removing Electronic Expansion Valve and Solenoid Valve
400
Removing Electrical Components
402
Removing Other Electrical Components
404
Servicing for Standard Series
405
Outdoor Units RAS-(4-6)H(V)NCE
405
Remove Outlet Grille
405
Removing Service Cover
405
Removing Bottom Service Cover and Rear Cover
406
Removing Upper Cover
406
Removing Outdoor Fan Motor
407
Removing Electrical Box
408
Removing the Compressor
409
Removing the High Pressure Switch and Pressure Switch for Control
415
Opening Electrical Box (P Plate)
416
Removing Reversing Valve Coil
416
Removing Electronic Expansion Valve Coil
417
Removing Solenoid Valve Coil (SVA)
417
Removing Reversing Valve
418
Removing Electrical Components
419
Removing Electronic Expansion Valve and Solenoid Valve
419
Removing Other Electrical Components
421
Outdoor Units RAS-(8-10)HNCE
422
Removing Air Outlet Grille
422
Removing Service Cover
422
Removing the Bottom Service Cover and Rear Cover
423
Removing Upper Cover
423
Removing Outdoor Fan Motor
424
Removing Electrical Box
425
Removing the Compressor
426
Opening Electrical Box (P-Mounting Plate)
429
Removing High Pressure Switch and Pressure Switch for Control
429
Removing Reversing Valve Coil
430
Removing Electronic Expansion Valve Coil
431
Removing Solenoid Valve Coil (SVA)
431
Removing Reversing Valve
432
Removing Electronic Expansion Valve and Solenoid Valve
433
Removing Electrical Components
434
Removing Other Electrical Components
436
Outdoor Units RAS-12HNC
437
Removing Air Outlet Grille
437
Removing Service Cover
437
Removing the Bottom Service Cover and Rear Cover
438
Removing Upper Cover
438
Removing Outdoor Fan Motor
439
Removing Electrical Box
440
Opening Electrical Box (P-Mounting Plate)
444
Removing High Pressure Switch and Pressure Switch for Control
444
Removing Reversing and Solenoid Valves Coils
445
Removing Electronic Expansion Valve Coil
446
Removing Reversing Valve
447
Removing Electronic Expansion Valve and Solenoid Valve
448
Removing Electrical Components
449
Removing Other Electrical Components
451
Electrial Checks of Main Parts
453
Inverter
454
Inverter Time Chart
456
Protective Function
457
Overload Control
458
Thermistor
459
Electronic Expansion Valve
461
High Pressure Protection Device
462
Noise Filter (NF)
464
Noise Filter for 1~ (230V/50Hz)
465
Capacitor (CB1 CB2)
466
Reactor (DCL)
467
Scroll Compressor
468
Maintenance Notes
469
Insufficient Cooling Performance When a Long Piping Is Applied
471
Not Cooling Well Due to Insufficient Installation Space for the Outdoor Unit
472
Maintenance Work
473
Service and Maintenance Record
474
Service and Maintenance Record Using the 7-Segment Display
475
Service and Maintenance Record by Remote Control Switch
477
Pump-Down Method for Replacing the Compressor
478
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