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Hitachi
Air Conditioner
RPIM
Hitachi RPIM User Manual
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11.1
Thermistor
Check
that
the
thermistors
are
connected
to
the
PCB
inlet
and,
if
not, connect them.
Use
a
multimeter
to
check
that
the
thermistor
resistances
are
between
240
Ω
and
840
k
Ω
.
Otherwise,
replace
any
defective
thermistors.
11
Electrical
checks
of
the
main parts
360
SMGB0063 rev. 1 - 10/2010
371
373
Table of Contents
Default Chapter
5
Table of Contents
5
1 General Information
13
General Information
14
Copyright
14
Introduction
14
Environment-Friendly Units
15
Safety
16
Symbols Used
16
Product Guide
17
Classification of Indoor Unit Models
17
KPI Energy / Heat Recovery Unit Classification
17
Product Guide: Indoor Units
18
Product Guide: Complementary Systems
21
Accessory Code List
22
2 Unit Installation
25
RCI - 4-Way Cassette
27
Accessories Supplied with the Unit
27
Unit Installation
27
Accessories Supplied with the Air Panel
31
Air Panel Installation
31
RCIM - 4-Way Cassette (Compact)
36
Accessories Supplied with the Unit
36
Unit Installation
36
Accessories Supplied with the Air Panel
40
Air Panel Installation
40
RCD - 2-Way Cassette
42
Accessories Supplied with the Unit
42
Unit Installation
42
Accessories Supplied with the Air Panel
46
Air Panel Installation
46
RPC - Ceiling
50
Accessories Supplied with the Unit
50
Unit Installation
50
Suspension Bracket Installation
50
Indoor Unit Installation
51
RPI(M) - Ducted Indoor Unit (0.8-6.0)FSN2E(-DU)
54
Accessories Supplied with the Unit
54
Unit Installation
54
Air Duct Connection
57
Maintenance of the Suction Air Filter
58
Change in the Air Suction Direction
58
RPI - Ducted Indoor Unit (8-10)FSN2E
59
Accessories Supplied with the Unit
59
Unit Installation
59
Air Duct Connection
61
Maintenance of the Suction Air Filter
61
RPK - FSN2M Wall Mounted
62
Accessories Supplied with the Unit
62
Unit Installation
62
Mounting Bracket Dimensions
67
RPF - Floor Type, RPFI - Floor Concealed Type
69
Accessories Supplied with the Unit
69
Unit Installation
69
Change in the Air Outlet Direction (RPFI Units)
72
RPF: Optional PC-ART Remote Control Location
72
KPI Energy / Heat Recovery Unit
73
Accessories Supplied with the Unit
73
Unit Installation
73
Duct Connection
75
Econofresh Kit
78
Accessories Supplied with the Unit
78
Unit Installation
78
Maintenance
79
Optional Accessories
80
Outdoor Air Inlet
80
Filters
85
3 Piping Work and Refrigerant Charge
89
Gas Refrigerant Pipe Selection
90
Copper Pipes, Sizes, Connection and Insulation
91
Copper Pipes and Sizes
91
Pipe Connection
92
Insulation of Multikits And/Or Branches
92
General Instructions on the Installation of Gas Refrigerant Pipes
93
Copper Gas Refrigerant Pipe
94
Three Principles on Work with Refrigerant Pipes
94
General Information on Copper Refrigeration Pipes
95
Diameters of the Copper Refrigeration Pipes
95
Preparing and Cutting Copper Refrigeration Pipes
95
Bending Copper Pipes
97
Brazing Copper Refrigeration Pipes
97
Flared Connection Mounting
99
Refrigerant Gas Pipe Insulation
99
Refrigerant Pipe Suspension
100
Refrigerant and Drain Hose Installation
101
RCI - 4-Way Cassette (1.0-6.0)FSN2E
101
RCIM-4-Way Cassette (Compact) (1.0-2.0)FSN2
102
RCD - 2-Way Cassette (1.0-5.0)FSN2
104
RPC - Ceiling Type (2.0-6.0)FSN2E
105
RPI - Ducted Indoor Unit (0.8-1.5)FSN2E
110
RPI - Ducted Indoor Unit (2.0-10.0)FSN2E
112
RPIM - Ducted Indoor Unit (0.8-1.5)FSN2E(-DU)
114
RPK - Wall Type (1.0-4.0)FSN(H)2M
116
RPF(I)-Floor Type (1.0-2.5)FSN2E
119
Refrigerant Gas Charge
121
Precautions in the Event of Refrigerant Gas Leaks
122
Maximum Permissible Concentration of Hydrofluorocarbon (HFC)
122
Calculation of the Concentration of Refrigerant Gas
122
Countermeasures in the Event of Refrigerant Gas Leaks
122
4 Electrical Wiring
123
Unit Electrical Wiring and Connection
124
Wiring and Main Switch Selection
124
Electrical Connection of RCI Units
125
Electrical Connection of RCIM Units
128
Electrical Connection of RCD Units
130
Electrical Connection of RPC Units
132
Electrical Connection of RPI Units
134
Electrical Connection of RPIM Units
137
Electrical Connection of RPK Units
140
Electrical Connection of RPF(I) Units
143
Electrical Connection of KPI Units
145
Network System Connection (CS-NET WEB)
146
Connection between Units H-LINK and H-LINK II
147
Setting of DIP Switches and RSW Switches
148
Location of DIP Switches and RSW Switches
149
Functions of the DIP Switches and RSW Switches
150
Wiring Diagrams for the KPI Indoor Units and Complementary Systems
154
Wiring Diagrams for Indoor Units
154
Wiring Diagrams for Complementary Systems
167
5 Control System
171
Device Control System
172
Printed Circuit Boards for RCI(M) Indoor Units
173
Printed Circuit Boards for RCD Indoor Units
175
Printed Circuit Board for RPC, RPF(I), RPI(M) Units
178
Printed Circuit Board for RPI-(8.0/10.0) FSN2E Units
179
Printed Circuit Board for RPK-FSN(H)2M Units
181
Printed Circuit Board for KPI Complementary Systems
184
Safety Protection and Control
187
Standard Control Functions
188
Freeze Protection During the Cooling or Dehumidification Process
188
Indoor Electronic Expansion Valve Control
189
Activation of the Control with Protection Device
190
Automatic Cooling/Heating Operation Control
191
Preventive High-Pressure Increase Control
191
6 Optional Functions
193
Indoor Units
194
Available Ports
194
Optional Signal Configuration
195
Programming with PC-ART
200
Description of Optional Input Signals
201
Description of Optional Output Signals
204
Complementary Systems
206
Econofresh Kit
206
Remote Controls
208
Optional Remote Control Functions
208
List of Optional Remote Control Functions
210
Description of the Optional Remote Control Functions
217
Optional Functions for PC-ARH Remote Controls
231
Optional Functions on Wireless Remote Controls
233
7 Test Run
235
Checks Prior to the Test Run
236
Check Points
236
Check Procedure
236
Test Procedure Using the Remote Control
238
Test Procedure Using the Wireless Remote Control
240
Test Run Check List
242
8 Troubleshooting
243
Self-Check of the Indoor Unit PCB (for RPK Only)
244
Electronic Expansion Valve Check Procedure
245
Procedure for Checking Fan Motors in Indoor Units
246
Inspection of Other Components
250
9 Spare Parts
251
Rcd-(1.0-3.0)Fsn2
252
Rcd-(4.0-5.0)Fsn2
254
Rpc-(4.0-6.0)Fsn2E
256
Rpi-(0.8-1.5)Fsne
258
Rpi-(8.0-10.0)Fsn2E
260
Rpim-(0.8-1.5)Fsne(-Du)
262
Rpk-(1.0-1.5)Fsn2E
264
Rpk-(1.0-1.5)Fsn(H)2M
266
Rpk-(2.0)Fsn2E
268
Rpk-(2.5-4.0)Fsn2E
270
Rpf-(1.0-2.5)Fsn2E
272
Rpfi-(1.0-2.5)Fsn2E
274
10 Servicing
277
RCI - 4-Way Cassette (1.0-6.0)FSN2E
280
Removal of the Long-Lasting Air Filter
280
Removal of the Air Inlet Grille
280
Removal of the Electrical Box Cover
281
Removal of the Optional Air Panel
282
Removal of the Fan Duct and Motor
283
Bellmouth Removal
283
Removal of the Printed Circuit Board (PCB)
284
Removal of the Drain Pan
285
Removal of the Drain Mechanism
285
Removal of the Float Switch
286
Removal of the Thermistors from the Liquid and Gas Pipes
286
Removal of the Electronic Expansion Valve Coil
287
Removal of the Automatic Louver Motor
288
RCIM - 4-Way Cassette (1.0-2.0)FSN2 (Compact)
289
Removal of the Air Filter
289
Removal of the Air Inlet Grille
289
Removal of the Electrical Box Cover
289
Removal of the Optional Air Panel
290
Removal of the Electrical Box
291
Removal of the Fan Duct and the Fan
292
Removal of the Printed Circuit Board (PCB)
292
Removal of the Drain Pan
293
Removal of the Drain Mechanism
293
Removal of the Float Switch
295
Removal of the Thermistors from the Liquid and Gas Pipes
295
Removal of the Electronic Expansion Valve Coil
296
Removal of the Automatic Louver Motor
298
RCD - 2-Way Cassette
299
Removal of the Long-Lasting Filter and the Air Inlet Grille
299
Removal of the Electrical Box
299
Removal of the Optional Air Panel
299
Removal of the Fan Duct and the Fan
300
Removal of the Printed Circuit Board (PCB)
301
Removal of the Float Switch
302
Removal of the Drain Mechanism
302
Removal of the Drain Pan
303
Removal of the Thermistors from the Liquid and Gas Pipes
304
Removal of the Electronic Expansion Valve Coil
304
Removal of the Automatic Louver Motor
305
RPI - Ducted Indoor Unit
307
Removal of the Electrical Box
307
Removal of the Inlet and Outlet Air Thermistors
309
Removal of the Thermistors from the Liquid and Gas Pipes
310
Removal of the Fan Parts
311
Removal of the Drain Mechanism
312
Removal of the Float Switch
313
Removal of the Air Filter
313
RPI-(8.0-10.0)FSN2E - Ducted Indoor Unit
315
Removal of the Electrical Box Cover
315
Removal of Electrical Components
315
Removal of the Inlet and Outlet Air Thermistors
315
Removal of the Thermistors from the Liquid and Gas Pipes
317
Removal of the Drain Pan
317
Fan Removal
318
Removal of the Float Switch
319
Removal of the Air Filter
320
RPIM - Ducted Indoor Unit
321
Removal of the Electrical Box
321
Removal of the Inlet and Outlet Air Thermistors
323
Removal of the Thermistors from the Liquid and Gas Pipes
324
Removal of the Fan Parts
325
Removal of the Float Switch
326
Removal of the Air Filter
327
RPC - Ceiling
328
Removal of the Air Filter
328
Removal of the Side Panel
328
Removal of the Air Outlet Grille
329
Removal of the Fan Motor
329
Removal of the Fan Shaft Support
330
Removal of the Coupling
331
Removal of the Automatic Louver Motor
331
Removal of the Thermistors from the Liquid and Gas Pipes
331
Removal of the Printed Circuit Board (PCB)
332
RPK - FSN2M Wall Mounted
334
Removal of the Air Filter
334
Removal of the Front Panel
335
Removal of the Right Cover (Only RPK-(2.5-4.0)FSN2M)
338
Removal of the Suction Air Grille (Only RPK-(2.5-4.0)FSN2M)
339
Removal of the Automatic Louver Motor
340
Remove the Electrical Box Panel
341
Removal of the Thermistors from the Liquid and Gas Pipes and the Inlet Air and Outlet Air Thermistors
342
Removal of the Printed Circuit Board (PCB)
344
Removal of the Heat Exchanger
349
Removal of the as Motor
351
Removal of the Drain Pan
352
Removal of the Fan Motor
353
Removal of the Electronic Expansion Valve
356
Rpf(I)- (1.0-2.5)
358
Removal of the Air Inlet Grille
358
Removal of the Air Filter
358
Removal of the Air Outlet Grille
359
Removal of the Front Panel
359
Removal of the Fan Motor
359
Removal of the Printed Circuit Board (PCB)
360
Removal of the Thermistors from the Liquid and Gas Piping
361
Removal of the Fan Motor
361
Removal of the Printed Circuit Board (PCB)
361
Kpi
362
System Description
362
Structure and Part Names
362
Standard Connection System and Central Station
363
Controlled Network System
364
Filter Maintenance
364
Cleaning Energy Recovery Ventilation Unit Elements
367
Energy Recovery Ventilation Unit Fan Connectors and Units
369
11 Electrical Checks of the Main Parts
371
Thermistor
372
Electronic Expansion Valve
373
Automatic Louver Mechanism
374
RCI(M) Indoor Units
374
RCD Indoor Units
375
RPC Indoor Units
375
12 Maintenance Notes
377
Regular Equipment Maintenance
378
Indoor Heat Exchanger Cleaning
396
Collection of Refrigerant to Replace the Indoor Unit
406
4
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Hitachi RPIM Specifications
General
Brand
Hitachi
Model
RPIM
Category
Air Conditioner
Language
English
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