Hitachi RAS-4HVRP2E User manual

–
SERVICE
MANUAL
–
UTOPIA
R32 SERIES
R410A SERIES
SMGB0136 rev.0 - 07/2021
MODELS
RAS-3HVRC2
RAS-(4-6)H(V)RC2E - RAS-(4-6)H(V)RP2E
RAS-(4-6)H(V)NC2E - RAS-(4-6)H(V)NP2E

Contents
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1
2
3
4
5
6
7
8
9
10
11
Contents
General Information
Optional parts and installation
Piping work and refrigerant charge
Electrical and control settings
Control System
Optional functions
Commissioning
Electrical checks of main parts
Servicing
Troubleshooting
Maintenance notes

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General Index
1. General Information................................................................................................. 11
1.1 General information...............................................................................................................................12
1.1.1 Introduction.................................................................................................................................................... 12
1.2 Applied symbols ....................................................................................................................................13
1.3 Norms and Regulations.........................................................................................................................13
1.4 Product guide ........................................................................................................................................14
1.4.1 Classication of outdoor unit models............................................................................................................. 14
1.4.2 Classication of indoor unit models............................................................................................................... 14
1.4.3 Product line-up: Outdoor units....................................................................................................................... 15
1.4.4 Outdoor unit accessory code list ................................................................................................................... 16
1.4.5 Product line-up: indoor units.......................................................................................................................... 17
1.4.6 Product line-up: KPI energy recovery unit..................................................................................................... 21
1.4.7 Product line-up: DX-Interface ........................................................................................................................ 21
1.4.8 Product line-up: Econofresh .......................................................................................................................... 21
1.4.9 Multi-Kits........................................................................................................................................................ 22
1.4.10 Individual remote controls ........................................................................................................................... 22
1.4.11 Receiver kit for combination with wireless remote control switch................................................................ 23
1.4.12 Centralised remote controls ........................................................................................................................ 24
1.4.13 Building air conditioning controls................................................................................................................. 24
1.4.14 Gateways for building management systems (BMS) .................................................................................. 25
1.4.15 Control support devices............................................................................................................................... 25
1.4.16 Control accessories..................................................................................................................................... 26
2. Optional parts and installation ............................................................................... 27
2.1 Optional parts and installation for RAS-3HVRC2..................................................................................28
2.1.1 Air ow guide AG-264.................................................................................................................................... 28
2.1.2 Wind guard WSP-264.................................................................................................................................... 29
2.1.3 Snow protection hood.................................................................................................................................... 30
2.1.3.1 Air discharge hood ........................................................................................................................... 30
2.1.3.2 Rear suction hood ............................................................................................................................ 31
2.1.3.3 Left suction hood.............................................................................................................................. 32
2.1.3.4 Assembly of snow protection hood................................................................................................... 33
2.2 Optional parts and installation RAS-(4-6)H(V)(R/N)(C/P)2E ................................................................34
2.2.1 Air ow guide AG-335A.................................................................................................................................. 34
2.2.2 Wind guard WSP-335A ................................................................................................................................. 35
2.2.3 Snow protection hood.................................................................................................................................... 36
2.2.3.1 Air discharge hood ........................................................................................................................... 36
2.2.3.2 Rear suction hood ............................................................................................................................ 37
2.2.3.3 Left suction hood.............................................................................................................................. 38
2.2.3.4 Assembly of snow protection hood................................................................................................... 39

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3. Piping work and refrigerant charge ....................................................................... 41
3.1 General notes before performing pipe work..........................................................................................42
3.1.1 Piping Materials............................................................................................................................................. 42
3.1.2 Three principles on refrigerant piping work ................................................................................................... 44
3.1.3 Suspension of refrigerant piping.................................................................................................................... 44
3.1.4 Brazing work.................................................................................................................................................. 45
3.2 Piping connection for outdoor unit......................................................................................................... 46
3.2.1 RAS-3HVRC2................................................................................................................................................ 46
3.2.2 RAS-(4-6)H(V)(R/N)(C/P)2E ......................................................................................................................... 47
3.2.3 Outdoor unit stop valve ................................................................................................................................. 50
3.3 Refrigerant piping range........................................................................................................................52
3.3.1 Refrigerant piping length ............................................................................................................................... 52
3.3.2 Piping system for header branch................................................................................................................... 52
3.3.3 Maximum lenght of refrigerant piping ............................................................................................................ 53
3.3.4 Combinations of piping size and piping length .............................................................................................. 54
3.3.5 Refrigerant piping size and multikit/distributor............................................................................................... 54
3.3.6 System installation ........................................................................................................................................ 56
3.4 Refrigerant charge.................................................................................................................................59
3.4.1 Caution of the pressure by check joint .......................................................................................................... 60
3.4.2 Refrigerant charge quantity ........................................................................................................................... 60
3.4.3 Refrigerant charge before shipment (W0(kg))............................................................................................... 61
3.4.4 Calculation method for the additional refrigerant charge............................................................................... 61
3.5 Caution in case of refrigerant leakage...................................................................................................63
3.5.1 Maximum permitted concentration of hydrouorocarbon (HFC) ................................................................... 63
3.5.2 Calculation of refrigerant concentration......................................................................................................... 63
3.5.3 Countermeasure for R410A refrigerant leakage............................................................................................ 64
3.6 Drain piping ...........................................................................................................................................65
3.6.1 Drain discharging boss.................................................................................................................................. 65
4. Electrical and control settings................................................................................ 67
4.1 General notes........................................................................................................................................68
4.1.1 General check ............................................................................................................................................... 68
4.1.2 LED’s indication............................................................................................................................................. 68
4.2 Electrical wiring connection for the outdoor unit....................................................................................69
4.3 Electrical settings ..................................................................................................................................70
4.3.1 Outdoor and indoor unit electrical wiring ....................................................................................................... 70
4.3.2 Wire size........................................................................................................................................................ 71
4.4 Electrical wiring diagrams......................................................................................................................73
4.4.1 RAS-3HVRC2................................................................................................................................................ 73
4.4.2 RAS-(4-6)HV(R/N)(C/P)2E (1~ 230V 50Hz) ................................................................................................. 75
4.4.3 RAS-(4-6)HV(R/N)(C/P)2E (3N~ 400V 50Hz)............................................................................................... 77

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5. Control System ........................................................................................................ 79
5.1 Device control system ...........................................................................................................................80
5.1.1 RAS-3HVRC2................................................................................................................................................ 80
5.1.2 RAS-(4-6)H(V)(R/N)(C/P)2E ......................................................................................................................... 81
5.1.3 Outline of the control system......................................................................................................................... 82
5.2 Outdoor units Printed circuit board (PCB)............................................................................................. 84
5.2.1 RAS-3HVRC2................................................................................................................................................ 84
5.2.2 RAS-(4-6)H(V)(R/N)(P/C)2E ......................................................................................................................... 85
5.2.2.1 RAS-(4-6)HV(R/N)(C/P)2E (PCB1).................................................................................................. 85
5.2.2.2 RAS-(4-6)H(R/N)(C/P)2E (PCB) ...................................................................................................... 86
5.3 Protection control ..................................................................................................................................87
5.3.1 Protection control code on 7-segment display .............................................................................................. 87
5.3.2 Activating condition of protection control code .............................................................................................. 88
5.4 Control and safety devices.................................................................................................................... 93
5.5 Standard operation sequence RAS-3HVRC2 and RAS-(4-6)H(V)(R/N)(C/P)2E .................................. 94
5.5.1 Cooling operation .......................................................................................................................................... 94
5.5.2 Dry operation................................................................................................................................................. 96
5.5.3 Heating operation .......................................................................................................................................... 98
5.5.4 Defrost operation RAS-3HVRC2 ................................................................................................................. 100
5.5.5 Defrost operation RAS-(4-6)H(V)(R/N)(C/P)2E........................................................................................... 101
5.6 Standard control functions...................................................................................................................103
5.6.1 Freezing protection during cooling process or dry operation ...................................................................... 103
5.6.2 Prevention control for excessively high discharge gas temperature ........................................................... 104
6. Optional functions ................................................................................................. 105
6.1 RAS-3HVRC2......................................................................................................................................106
6.1.1 Menu mode accessing (by 7-segment display) ........................................................................................... 106
6.1.1.1 Check mode ................................................................................................................................... 106
6.1.1.2 External input and output setting.................................................................................................... 106
6.1.1.3 Function setting.............................................................................................................................. 106
6.1.2 External input and output setting (by 7-segment display) ........................................................................... 107
6.1.2.1 Available control functions.............................................................................................................. 107
6.1.2.2 Setting of external input and output ............................................................................................... 108
6.1.2.3 Optional external output signals..................................................................................................... 108
6.1.2.4 Available ports................................................................................................................................ 109
6.1.2.5 Available output signals...................................................................................................................110
6.1.3 Function setting (by 7–segment display)......................................................................................................110
6.1.3.1 Sequence of the function setting.....................................................................................................110
6.1.3.2 Function setting...............................................................................................................................112
6.1.3.3 Circulator function at heating Thermo-OFF (FA)............................................................................115
6.1.3.4 Night-shift (low noise)(ni)..............................................................................................................115

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6.1.3.5 Cancellation of the outdoor ambient temperature limit (GS)...........................................................116
6.1.3.6 Change of defrost condition (Jo)....................................................................................................117
6.1.3.7 SLo defrost setting (bJ)..................................................................................................................118
6.1.3.8 Priority capacity mode setting (nU).................................................................................................118
6.1.3.9 Priority Cooling Capacity mode (Hc)...............................................................................................118
6.1.3.10 Priority Heating Capacity mode (Hh)............................................................................................118
6.1.3.11 Change the opening degree of the Expansion Valve (Si)............................................................118
6.1.3.12 Change of heating Thermo-OFF opening degree of the Expansion Valve (So)...........................119
6.1.3.13 Heating start opening degree change (ci)...................................................................................119
6.1.3.14 Low noise setting (db)..................................................................................................................119
6.1.3.15 Demand function setting (dE)...................................................................................................... 120
6.1.3.16 Wave function setting (UE).......................................................................................................... 121
6.1.3.17 Cold draft protection (Fb)............................................................................................................. 121
6.1.3.18 Forced stop when defrosting is restored (dS)............................................................................. 121
6.1.3.19 Intermittent operation of outdoor fan (F1)................................................................................... 122
6.1.3.20 Alternate defrost mode (F5)......................................................................................................... 122
6.1.3.21 Cancellation of Defrost at Absence Judgement (F9)................................................................... 123
6.1.3.22 Change Forced stoppage status (FE).......................................................................................... 123
6.2 RAS-(4-6)H(V)(R/N)(C/P)2E ............................................................................................................... 124
6.2.1 Menu mode accessing (by 7-segment display) ........................................................................................... 124
6.2.1.1 Check mode ................................................................................................................................... 124
6.2.1.2 External input and output setting.................................................................................................... 124
6.2.1.3 Function setting.............................................................................................................................. 124
6.2.2 External input and output setting (by 7-segment display) ........................................................................... 125
6.2.2.1 Available control functions.............................................................................................................. 125
6.2.2.2 Setting of external input and output ............................................................................................... 126
6.2.2.3 External input function setting ........................................................................................................ 127
6.2.2.4 External output function setting...................................................................................................... 129
6.2.3 Function setting (by 7–segment display)..................................................................................................... 130
6.2.3.1 Sequence of the function setting.................................................................................................... 130
6.2.3.2 Function setting.............................................................................................................................. 132
6.2.3.3 Circulator function at heating Thermo-OFF (FA)........................................................................... 135
6.2.3.4 Night-shift (low noise)(ni)............................................................................................................. 135
6.2.3.5 Cancellation of the outdoor ambient temperature limit (GS).......................................................... 136
6.2.3.6 Defrost for cold area (Jo).............................................................................................................. 137
6.2.3.7 SLo defrost setting (bJ)................................................................................................................. 137
6.2.3.8 Priority capacity mode setting (nU)................................................................................................ 137
6.2.3.9 Low noise setting (db)................................................................................................................... 138
6.2.3.10 Demand function setting (dE)...................................................................................................... 138
6.2.3.11 Wave function setting (UE)........................................................................................................... 139
6.2.3.12 Cold draft protection (Fb)............................................................................................................. 139

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6.2.4 Power saving function from wired controller................................................................................................ 140
6.2.4.1 Power Saving Guide ...................................................................................................................... 140
6.2.4.2 Outdoor Unit Capacity Control ....................................................................................................... 140
6.2.4.3 Rotation control function ................................................................................................................ 141
6.2.4.4 Intermittent control function............................................................................................................ 141
6.2.4.5 Power Saving Schedule Function .................................................................................................. 142
6.2.4.6 Operation noise reduction schedule function ................................................................................. 142
6.2.4.7 Power Consumption Display Function ........................................................................................... 142
7. Commissioning ...................................................................................................... 143
7.1 Preliminary checks ..............................................................................................................................144
7.2 Before the test run...............................................................................................................................145
7.3 Test run using the PC-ARFP1E remote control switch (example).......................................................146
7.4 Test run from the outdoor unit ............................................................................................................. 148
7.5 Checking at test run ............................................................................................................................ 150
7.6 Refrigerant cycle checklist...................................................................................................................151
7.7 Test run check list................................................................................................................................154
8. Electrical checks of main parts ............................................................................ 155
8.1 Inverter ................................................................................................................................................156
8.1.1 RAS-(4-6)HV(R/N)(C/P)2E.......................................................................................................................... 156
8.1.2 RAS-(4-6)H(R/N)(C/P)2E ............................................................................................................................ 158
8.1.3 Specications of inverter ............................................................................................................................. 160
8.1.4 Inverter time chart ....................................................................................................................................... 162
8.1.5 Protective function....................................................................................................................................... 162
8.1.6 Overload control .......................................................................................................................................... 164
8.2 Thermistor ...........................................................................................................................................165
8.2.1 Thermistors for RAS-3HVRC2 .................................................................................................................... 165
8.2.2 Thermistors for RAS-(4-6)H(V)(R/N)(C/P)2E .............................................................................................. 166
8.3 Electronic expansion valve..................................................................................................................169
8.4 High pressure protection device.......................................................................................................... 170
8.4.1 RAS-3HVRC2.............................................................................................................................................. 170
8.4.2 RAS-(4-6)H(V)(R/N)(C/P)2E ....................................................................................................................... 170
8.5 Noise lter (NF) ...................................................................................................................................171
8.6 Reactor (DCL) .....................................................................................................................................172
8.6.1 RAS-3HVRC2.............................................................................................................................................. 172
8.6.2 RAS-(4-6)HV(R/N)(C/P)2E.......................................................................................................................... 172
8.6.3 RAS-(4-6)H(R/N)(C/P)2E ............................................................................................................................ 172
8.7 Rotary compressor..............................................................................................................................173

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9. Servicing................................................................................................................. 175
9.1 Safety Introduction ..............................................................................................................................176
9.2 RAS-3HVRC2......................................................................................................................................177
9.2.1 Removing the pipe cover............................................................................................................................. 177
9.2.2 Removing the front cover ............................................................................................................................ 177
9.2.3 Removing the outdoor fan ........................................................................................................................... 178
9.2.4 Removing the compressor .......................................................................................................................... 179
9.2.5 Removing the high pressure switch and pressure switch for control .......................................................... 181
9.2.6 Removing the 4-way valve coil.................................................................................................................... 181
9.2.7 Removing the electronic expansion valve coil............................................................................................. 182
9.2.8 Removing the electrical box ........................................................................................................................ 182
9.2.9 Removing Display PCB ............................................................................................................................... 183
9.2.10 Removing other electrical components ..................................................................................................... 183
9.3 RAS-(4-6)H(V)(R/N)(C/P)2E ............................................................................................................... 184
9.3.1 Removing service cover .............................................................................................................................. 184
9.3.2 Remove outlet grille..................................................................................................................................... 184
9.3.3 Removing upper cover ................................................................................................................................ 184
9.3.4 Removing bottom service cover and rear cover.......................................................................................... 185
9.3.5 Removing outdoor fan motor....................................................................................................................... 185
9.3.6 Removing electrical box .............................................................................................................................. 186
9.3.7 Removing the compressor .......................................................................................................................... 189
9.3.8 Removing the High pressure switch and Pressure switch for control ......................................................... 193
9.3.9 Removing 4-way valve coil.......................................................................................................................... 195
9.3.10 Removing electronic expansion valve coil................................................................................................. 195
9.3.11 Removing solenoid valve coil (SVA).......................................................................................................... 196
9.3.12 Removing 4-way valve .............................................................................................................................. 196
9.3.13 Removing Electronic expansion valve....................................................................................................... 197
9.3.14 Removing Solenoid valve.......................................................................................................................... 198
9.3.15 Disassembly / Assembly the Electrical components for RAS-(4-6)HV(R/N)(C/P)2E................................. 199
9.3.16 Disassembly / Assembly Electrical components for RAS-(4-6)H(R/N)(C/P)2E ......................................... 204
9.3.17 Removing pipe thermistors........................................................................................................................ 209
10. Troubleshooting..................................................................................................... 211
10.1 Initial troubleshooting ..........................................................................................................................213
10.1.1 RAS-3HVRC2............................................................................................................................................ 213
10.1.1.1 Simple checking procedure by means of the 7-segment display ................................................. 213
10.1.1.2 Power supply failure to the indoor unit and the remote control switch (PC-ARFP1E) ................. 213
10.1.1.3 Abnormal operation of the devices............................................................................................... 214
10.1.2 RAS-(4-6)H(V)(R/N)(C/P)2E ..................................................................................................................... 217
10.1.2.1 Checking the electrical wires and the power source ................................................................... 217
10.1.2.2 Checking by 7-segment display ................................................................................................... 218
10.1.2.3 Failure of the power supply to indoor units and the remote control switch .................................. 221

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10.1.2.4 Abnormal transmission between remote control switch and indoor unit ...................................... 222
10.1.2.5 Abnormal operation of the devices............................................................................................... 223
10.2 Troubleshooting procedure ................................................................................................................. 234
10.2.1 RAS-3HVRC2............................................................................................................................................ 234
10.2.1.1 Alarm codes for the outdoor units ................................................................................................ 234
10.2.1.2 Troubleshooting by alarm code .................................................................................................... 236
10.2.2 RAS-(4-6)H(V)(R/N)(C/P)2E ..................................................................................................................... 260
10.2.2.1 Alarm codes of wired controller .................................................................................................... 260
10.2.2.2 Troubleshooting by alarm code .................................................................................................... 263
10.3 Troubleshooting in check mode .......................................................................................................... 296
10.3.1 RAS-3HVRC2............................................................................................................................................ 296
10.3.1.1 Check mode display by Unit controller......................................................................................... 296
10.3.1.2 Troubleshooting using the 7 segment display (Outdoor unit)....................................................... 296
10.3.2 RAS-(4-6)H(V)(R/N)(C/P)2E ..................................................................................................................... 301
10.3.2.1 Troubleshooting by using the 7-segment display ......................................................................... 301
10.4 Checking procedure for main parts ..................................................................................................... 308
10.4.1 RAS-3HVRC2............................................................................................................................................ 308
10.4.1.1 Checking procedure for the PCB ................................................................................................. 308
10.4.1.2 Checking procedeure for the DC fan motor ................................................................................. 309
10.4.1.3 Checking procedure for the electronic expansion valve for indoor and outdoor units.................. 310
10.4.1.4 Checking procedure for other parts...............................................................................................311
10.4.1.5 Checking procedure for the inverter PCB .................................................................................... 313
10.4.1.6 Checking procedure for the compressor ...................................................................................... 314
10.4.2 RSW, DSWs and LEDs functions RAS-(4-6)HV(R/N)(C/P)2E .................................................................. 316
10.4.2.1 Location of print circuit boards (PCBs)......................................................................................... 316
10.4.2.2 Purpose........................................................................................................................................ 316
10.4.3 RSW, DSWs and LEDs functions RAS-(4-6)H(R/N)(C/P)2E..................................................................... 319
10.4.3.1 Location of print circuit boards (PCBs)......................................................................................... 319
10.4.3.2 Purpose........................................................................................................................................ 319
11. Maintenance notes................................................................................................. 323
11.1 General notes......................................................................................................................................324
11.1.1 Checking the power source and the wiring connection ............................................................................. 324
11.1.3 Insufcient cooling performance when a long piping is applied................................................................. 324
11.1.4 Abnormally high operation sound (in the ceiling type indoor unit) ............................................................. 325
11.1.5 Alarm code “31” ......................................................................................................................................... 325
11.1.6 Not cooling well due to insufcient installation space for the outdoor unit................................................. 325
11.2 Maintenance work ...............................................................................................................................326
11.3 Service and maintenance record.........................................................................................................327

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11.4 Service and maintenance record using the 7-segment display...........................................................328
11.4.1 Information of Indoor unit........................................................................................................................... 330
11.4.2 Information of cause code of alarm ........................................................................................................... 330
11.4.3 Information of cause code of alarm record ................................................................................................ 330
11.5 Service and maintenance table through the remote control switch.....................................................331
11.5.1 RAS-3HVRC2............................................................................................................................................ 331
11.5.2 RAS-(4-6)(V)(R/N)(C/P)2E ........................................................................................................................ 333
11.6 Refrigerant collection method..............................................................................................................334
11.6.1 Refrigerant collection method when replacing the parts of outdoor unit.................................................... 334
11.6.2 Refrigerant collection method when replacing indoor unit......................................................................... 336

1. General Information
Index
1.1 General information...............................................................................................................................12
1.1.1 Introduction.................................................................................................................................................... 12
1.2 Applied symbols ....................................................................................................................................13
1.3 Norms and Regulations.........................................................................................................................13
1.4 Product guide ........................................................................................................................................14
1.4.1 Classication of outdoor unit models............................................................................................................. 14
1.4.2 Classication of indoor unit models............................................................................................................... 14
1.4.3 Product line-up: Outdoor units....................................................................................................................... 15
1.4.4 Outdoor unit accessory code list ................................................................................................................... 16
1.4.5 Product line-up: indoor units.......................................................................................................................... 17
1.4.6 Product line-up: KPI energy recovery unit..................................................................................................... 21
1.4.7 Product line-up: DX-Interface ........................................................................................................................ 21
1.4.8 Product line-up: Econofresh .......................................................................................................................... 21
1.4.9 Multi-Kits........................................................................................................................................................ 22
1.4.10 Individual remote controls ........................................................................................................................... 22
1.4.11 Receiver kit for combination with wireless remote control switch................................................................ 23
1.4.12 Centralised remote controls ........................................................................................................................ 24
1.4.13 Building air conditioning controls................................................................................................................. 24
1.4.14 Gateways for building management systems (BMS) .................................................................................. 25
1.4.15 Control support devices............................................................................................................................... 25
1.4.16 Control accessories..................................................................................................................................... 26
1 General Information
SMGB0136 rev.0 - 07/2021
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1

1.1 General information
© Copyright 2021 Johnson Controls-Hitachi Air Conditioning Spain, S.A.U. – All rights reserved.
No part of this publication may be reproduced, copied, led or transmitted in any shape or form without the permission of
Johnson Controls-Hitachi Air Conditioning Spain, S.A.U.
Within the policy of continuous improvement of its products, Johnson Controls-Hitachi Air Conditioning Spain, S.A.U.
reserves the right to make changes at any time without prior notication and without being compelled to introducing them
into products subsequently sold. This document may therefore have been subject to amendments during the life of the
product.
Hitachi makes every effort to offer correct, up-to-date documentation. Despite this, printing errors cannot be controlled by
Hitachi and are not its responsibility.
As a result, some of the images or data used to illustrate this document may not refer to specic models. No claims will
be accepted based on the data, illustrations and descriptions included in this manual.
No type of modication must be made to the equipment without prior, written authorization from the manufacturer.
Hitachi pursues a policy of continued improvement in design and performance of Products. The right is therefore
reserved to vary specications without notice. Hitachi cannot anticipate every possible circumstance that might involve a
potential hazard. No part of this manual may be reproduced without written permission.
1.1.1 Introduction
Hitachi UTOPIA Prime/ UTOPIA IVX Prime series is an outdoor unit series designed with the goal to cover the
requirements of the split and multisplit systems, for installations where from one indoor unit (single system) to up to 4
indoor units, are connected to the same UTOPIA outdoor unit (depending on model).
UTOPIA series 2 consists in two different outdoor unit series: UTOPIA Prime and UTOPIA IVX Prime, which compliant
with the Eco Design (ErP) and Energy Labelling (ELD) directives about seasonal energy performance:
• ErP 206/2012& ELD (626/2011) for models up to 12kW of Cooling capacity
• ErP 2016/2281 for models higher than 12kW of Cooling capacity
The Seasonal Energy Efciency Ratio (SEER) in cooling and the Seasonal Coefcient of Performance (SCOP) in
heating, show an approach values to the real energy consumption.
UTOPIA series incorporate the Hitachi inverter technology, which makes possible to adapt automatically and without the
user operation the capacity of the unit, so the power input, to the real demand of the installation, increasing the system
efciency to unattainable levels with other technologies. All UTOPIA units are equipped with a heat pump, resulting in
an air conditioning system valid for the whole year, in which the installation of additional and specic systems are not
necessary.
UTOPIA series 2
Nominal capacity from 7 kW to 14 kW (cooling mode). Connectable indoor units up to 4 units (depending on model) and
total combination power from 90% up to 115%, outdoor units from 4 to 6HP, or 90% up to 100% for 3HP outdoor units.
Indoor Units
One of the main merits of Hitachi units range is the combinability and exibility of its indoor units SYSTEM FREE. This
outstanding technology makes possible to use the same indoor units with both UTOPIA and SET FREE outdoor units,
making easier the design, installation and control of the air conditioning installations.
1 General Information
General information
SMGB0136 rev.0 - 07/2021
12

1.2 Applied symbols
During normal air conditioning system design work or unit installation, greater attention must be paid in certain situations
requiring particular care in order to avoid damage to the unit, the installation or the building or property.
Situations that jeopardise the safety of those in the surrounding area or that put the unit itself at risk will be clearly
indicated in this manual.
A series of special symbols will be used to clearly identify these situations.
Pay close attention to these symbols and to the messages following them, as your safety and that of others depends on it.
!DANGER
• Thetextfollowingthissymbolcontainsinformationandinstructionsrelatingdirectlytoyoursafety,inadditiontohazards
orunsafepracticeswhichcouldresultinseverepersonalinjuriesordeath.
• Nottakingtheseinstructionsintoaccountcouldleadtoserious,veryseriousorevenfatalinjuriestoyouandothersinthe
proximitiesoftheunit.
In the texts following the danger symbol you can also nd information on safe procedures during unit installation.
!CAUTION
• Thetextfollowingthissymbolcontainsinformationandinstructionsrelatingdirectlytoyoursafety,inadditiontohazardsorunsafe
practiceswhichcouldresultinminorpersonalinjuryorproductorpropertydamage
• Nottakingtheseinstructionsintoaccountcouldleadtominorinjuriestoyouandothersintheproximitiesoftheunit.
• Nottakingtheseinstructionsintoaccountcouldleadtounitdamage.
In the texts following the caution symbol you can also nd information on safe procedures during unit installation.
?NOTE
• Thetextfollowingthissymbolcontainsinformationorinstructionsthatmaybeofuseorthatrequireamorethoroughexplanation.
• Instructionsregardinginspectionstobemadeonunitpartsorsystemsmayalsobeincluded.
1.3 Norms and Regulations
Following Regulation EU Nº 517/2014 on Certain Fluorinated Greenhouse gases, it is mandatory to ll in the label
attached to the unit with the total amount of refrigerant charged on the installation.
Do not vent R32 into the atmosphere: R32 is uorinated greenhouse gas covered by the Kyoto protocol global warming
potential (GWP) R32 = 675.
Do not vent R410A into the atmosphere: R410A are uorinated greenhouse gases covered by the Kyoto protocol global
warming potential (GWP) R410A = 2088.
Tn of CO2 equivalent of uorinated greenhouse gases contained is calculated by indicated GWP * Total Charge (in kg)
indicated in the product label and divided by 1000.
Appropriaterefrigerant
The refrigerant used in each unit is identied on the specication label and manuals of the unit. Hitachi shall not be held
liable for any failure, trouble, malfunction or accident caused by units illegally charged with refrigerants other than the
specied one.
Consequencesofchargingnon-speciedrefrigerant
IIt may cause mechanical failure, malfunction and other accidents.
It may cause operational failure of protection and safety devices of air conditioners.
It may also cause lubrication failure of the sliding part of the compressor due to deterioration of refrigerant oil.
In particular, hydrocarbon refrigerants (such as propane, R441A, R443A, GF-08, etc.) are not allowed, since these are
combustible and may cause major accidents such as re and explosion in case of improper handling.
Once a non-specied refrigerant has been charged, no further servicing (including draining of refrigerant) shall be
performed, even in case of malfunction. Improper handling of refrigerant may be a cause of re and explosion, and
servicing in such cases may be considered an illegal act.
End clients and costumers shall be informed that servicing is not approved, and the installer who charged the
nonspecied refrigerant shall be asked to x the unit.
Hitachi will accept no responsibility for units that have been charged with non-specied refrigerant once.
1 General Information
Applied symbols
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1

1.4 Product guide
1.4.1 Classication of outdoor unit models
Unit type (Outdoor unit): RAS
Position-separating hyphen (xed)
Capacity (HP): 3, 4, 5, 6
H = Heat pump
V = Single phase unit (1~ 230V 50Hz)
- = Three phase unit (3N~ 400V 50Hz)
R = R32 refrigerant
N = R410A refrigerant
C: Simultaneous operation mode
P: Individual operation mode
2 = series 2
E = Made in Europe
- = Made in Japan
RAS – X H (X) X X 2 (X)
1.4.2 Classication of indoor unit models
Unit type (indoor unit): RCI, RCIM, RCD, RPC, RPI, RPK, RPF, RPFI
Position-separating hyphen (xed)
Capacity (HP): 0.4, 0.6, 0.8, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0, 16.0, 20.0
FS = SYSTEM FREE
R = R32 / R410A refrigerant
N = R410A refrigerant
H = Hotel (RPK-(0.4-1.5) only)
2/3/6 = series
P= Pair
E = Made in Europe
M = Made in Malaysia
– = Made in Japan or China
(-f) = Non-ammable insulation (RPI-(8.0-20.0)FSN3(P)E-f only)
(-EF) = Ducted indoor unit for econofresh assembly (RPI-(4.0-6.0)FSN6E-EF only)
XXX – X.X FS (X) (H) X (P) (X) (X)
1 General Information
Product guide
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1.4.3 Product line-up: Outdoor units
UTOPIA Prime
R32 R410A
1~ 230V 50Hz 3N~ 400V 50Hz 1~ 230V 50Hz 3N~ 400V 50Hz
Unit Code Unit Code Unit Code Unit Code Unit Code
RAS-3HVRC2 60289185
RAS-4HVRC2E 7E303034 RAS-4HRC2E 7E303134 RAS-4HVNC2E 7E305055 RAS-4HNC2E 7E305155
RAS-5HVRC2E 7E303035 RAS-5HRC2E 7E303135 RAS-5HVNC2E 7E305056 RAS-5HNC2E 7E305156
RAS-6HVRC2E 7E303036 RAS-6HRC2E 7E303136 RAS-6HVNC2E 7E305057 RAS-6HNC2E 7E305157
UTOPIA IVX Prime
R32 R410A
1~ 230V 50Hz 3N~ 400V 50Hz 1~ 230V 50Hz 3N~ 400V 50Hz
Unit Code Unit Code Unit Code Unit Code
RAS-4HVRP2E 7E303234 RAS-4HRP2E 7E303334 RAS-4HVNP2E 7E305255 RAS-4HNP2E 7E305355
RAS-5HVRP2E 7E303235 RAS-5HRP2E 7E303335 RAS-5HVNP2E 7E305256 RAS-5HNP2E 7E305356
RAS-6HVRP2E 7E303236 RAS-6HRP2E 7E303336 RAS-6HVNP2E 7E305257 RAS-6HNP2E 7E305357
1 General Information
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1.4.4 Outdoor unit accessory code list
Name OU Reference Description Code Figure
DBS-12L RAS-3HVRC2 Drain discharge connection 60291491
DBS-26 RAS-(4-6)H(V)(R/N)(C/P)2E Drain discharge connection 60299192
AG-264 RAS-3HVRC2 Air ow guide 60209100
AG-335A RAS-(4-6)H(V)(R/N)(C/P)2E Air ow guide 60291431
WSP-264 RAS-3HVRC2 Wind guard 60291831
WSP-335A RAS-(4-6)H(V)(R/N)(C/P)2E Wind guard 60291432
Snow protection hood
Name OU Reference Description Code Figure
ZINC PLATE
ASG-SP10FTB (Half) RAS-3HVRC2
Air outlet
60292336
ASG-SP11FTB (Full) 60292339
ASG-NP335F1 (Half) RAS-(4-6)H(V)(R/N)(C/P)2E 60291771
ASG-SP11FB (Full) 60291781
ASG-SP10BTB RAS-3HVRC2 Air inlet of rear side 60292337
ASG-SP10BE RAS-(4-6)H(V)(R/N)(C/P)2E 60291938
ASG-SP10LTB RAS-3HVRC2 Air inlet of left side 60292338
ASG-SP10LE RAS-(4-6)H(V)(R/N)(C/P)2E 60291939
STAINLESS PLATE
ASG-SP10FTBS (Half) RAS-3HVRC2
Air outlet
60292352
ASG-SP11FTBS (Full) 60292355
ASG-NP335FS4 (Half) RAS-(4-6)H(V)(R/N)(C/P)2E 60291940
ASG-SP2 (Full) 60291947
ASG-SP10BTBS (Half) RAS-3HVRC2 Air inlet of rear side 60292353
ASG-SP10BES2 RAS-(4-6)H(V)(R/N)(C/P)2E 60291943
ASG-SP10LTBS (Half) RAS-3HVRC2 Air inlet of left side 60292354
ASG-SP10LES2 RAS-(4-6)H(V)(R/N)(C/P)2E 60291944
Drain Heater
DH-SP63A RAS-3HVRC2 -60292335 -
?NOTE
HitachihasarangeofaccessoriesandremotecontrolsystemsthatcanbeusedwiththeUTOPIAPrimeandUTOPIAIVXPrimeseries
outdoorunits.Please,refertotheControlsTechnicalCatalogue.
1 General Information
Product guide
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1.4.5 Product line-up: indoor units
?NOTE
• Theindoorunitmodelsandcodesarethelastupdatedattimeofpublication;otherpreviousmodelsandcomingdevelopmentscould
beavailableforcombinationwiththeoutdoorunitseries.
• Checktheexactclassicationforeachunit(model,type,powerandseries)in“1.4.1Classicationofoutdoorunitmodels”.
RCI and RCIM indoor units
RCI ( R32 / R410A ) RCIM ( R32 / R410A )
4-way cassette 4-way cassette (compact)
Unit Code Unit Code
RCIM-0.4FSRE (*1) 7E414148
RCIM-0.6FSRE (*2) 7E414137
RCIM-0.8FSRE 7E414100
RCI-1.0FSR 70405301 RCIM-1.0FSRE 7E414101
RCI-1.5FSR 70405302 RCIM-1.5FSRE 7E414102
RCI-2.0FSR 70405303 RCIM-2.0FSRE 7E414103
RCI-2.5FSR 70405304 RCIM-2.5FSRE 7E414104
RCI-3.0FSR 70405305
RCI-4.0FSR 70405307
RCI-5.0FSR 70405308
RCI-6.0FSR 70405309
Panel Panel
P-N23NA2
(without Motion Sensor) 70532000 P-AP56NAM (without Motion Sensor) 70533000
P-AP160KA3 (Standard panel
without Motion Sensor, black) 60279337 P-AP56NAMS (Motion Sensor embedded) 70533100
P-GP160NAP
(Iconic panel, white) 60297331 P-AP56NAMR (Receiver kit embedded) 70533500
P-GP160KAP
(Iconic panel, black) 60297334
P-GP160NAPU
(Iconic panel, with elevating
grille)
60297339
?NOTE
• TheRCIandRCIMmodelsmustbeusedincombinationwiththeindicatedpanels.
• (*1):Followthedetailedinformationaboutthecombinabilityandrestrictionsfor0.4HPIndoorUnits,whichcanonlybeusedincom-
binationwithcurrentSETFREEMini(RAS-(4-6)FS(V)NME,RAS-(8-12)FSXNME)andSETFREE(RAS-FSXNSE,RAS-FSXNPE).
• (*2):0.6HPIndoorUnitscanonlybeusedincombinationwithSETFREEMini(RAS-(4-6)FS(V)NME,RAS-(8-12)FSXNME)andSET
FREE(RAS-FSXNSE,RAS-FSXNPE).
1 General Information
Product guide
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RCD and RPC indoor units
RCD ( R32 / R410A ) RPC ( R32 / R410A )
2-way cassette Ceiling type
Unit Code Unit Code Unit Code
RCD-0.8FSR (*) 60279168
RCD-1.0FSR (*) 60279169
RCD-1.5FSR (*) 60279170 RPC-1.5FSR 60279267
RCD-2.0FSR (*) 60279171 RPC-2.0FSR 60279268
RCD-2.5FSR (*) 60279172 RPC-2.5FSR 60279269
RCD-3.0FSR (*) 60279173 RPC-3.0FSR 60279270
RCD-4.0FSR (*) 60279174 RPC-4.0FSR 60279271
RCD-5.0FSR (*) 60279175 RPC-5.0FSR 60279272
RCD-6.0FSR (*) 60279176 RPC-6.0FSR 60279273
Panel Panel
P-AP90DNA 60297319 P-AP160DNA 60297320
?NOTE
• TheRCDmodelsmustbeusedincombinationwiththeindicatedpanels.
• (*):1indoorunitcombinationswithUTOPIAseriesnotallowed.
1 General Information
Product guide
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