Hitachi RAS-2.5WHVRP

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YUTAKI M (R32)

2.0 HP 3.0 HP

Static pressure (mWC)

Water ow (m

/h) Water ow (m

/h)

WORKING RANGE

PMML0510 rev.1 - 10/2019

Main Page

Table of Contents7
General Information11
General Notes11
Introduction11
Overview of YUTAKI System11
Summary of Operations12
Applied Symbols14
Product Guide15
Classification of the Units15
Split System - Outdoor Unit15
Split System - Indoor Unit15
Monobloc System16
Complementary System17
Product List17
Split System - R32 Outdoor Unit17
Split System - R410A Outdoor Unit17
Split System - Indoor Unit18
Monobloc System21
Complementary System22
General Safety Notes23
Additional Information about Safety23
Important Notice23
Electrical Data24
Considerations24
Split System - R410A Outdoor Unit25
Split System - R32 Outdoor Unit25
Split System - Indoor Unit26
Yutaki S26
Yutaki S Combi26
Yutaki S8027
Monobloc System29
Working Range30
Power Supply Working Range30
R410A Temperature Working Range30
Space Heating30
Dhw32
Swimming Pool Heating33
Space Cooling (Necessary Cooling Kit)33
R32 Temperature Working Range34
Space Heating34
Dhw35
Swimming Pool Heating35
Space Cooling (Necessary Cooling Kit)36
R410A Hydraulic Working Range36
Hydraulic Data36
R32 Hydraulic Working Range37
Hydraulic Data37
Pump Performance Curves38
Refrigerant and Water Piping45
R32 Refrigerant Circuit45
General Notes R32 Refrigerant45
Refrigerant Piping45
Refrigerant Charge47
R410A Refrigerant Circuit47
Refrigerant Piping47
Precautions in the Event of Gas Refrigerant Leaks49
Water Piping51
Water Piping Length51
Water Piping Size51
Water Quality54
Water Flow Control54
Electrical and Control Settings55
General Check55
Electrical Connection59
Wiring Size59
Minimum Requirements of the Protection Devices63
Terminal Board Connections67
Unit Controller76
Definition of the Switches76
Description of the Icons77
Common Icons77
Icons for the Comprehensive View78
Icons for the Room Thermostat View79
Room Thermostat Contents80
Unit Controller Contents81
Unit + Room Thermostat Controller Contents83
Controller Configuration85
Configuration Assistant85
Advanced Configuration89
Examples of Possible Configurations91
Main Screen97
Room Thermostat View97
Comprehensive View98
Quick Action Function99
Menu100
Operation Information100
System Configuration101
General Options Configuration102
Timer and Schedule Configuration103
Water Settings Configuration105
Space Heating / Space Cooling Configuration106
Domestic Hot Water (Dhw) Configuration108
Swimming Pool Configuration110
Complementary Heating Configuration111
Heat Pump Configuration113
Optional Functions Configuration115
Inputs, Outputs and Sensors Configuration118
Commissioning119
Controller Settings120
About120
Factory Reset121
Return to USER MODE121
Yutaki Cascade Controller122
Definition of the Switches122
Description of the Icons123
Common Icons123
Icons for the Comprehensive View124
Contents125
Cascade Controller Configuration127
Configuration Assistant127
Advanced Configuration130
Main Screen133
Quick Action Function134
Menu135
Operation Information135
System Configuration136
General Options Configuration137
Timer and Schedule Configuration138
Space Heating / Space Cooling Configuration141
Domestic Hot Water (Dhw) Configuration143
Swimming Pool Configuration145
Complementary Heating Configuration146
Heat Pump Configuration148
Optional Functions Configuration149
Setup of Inputs, Outputs and Sensors151
Controller Settings152
Commissioning153
About153
Factory Reset154
Return to User Mode154
Troubleshooting155
Maintenance160
Maintenance Work160
General Maintenance Procedure for the Outdoor Unit160
General Maintenance Procedure for the Indoor Unit161

Hitachi RAS-2.5WHVRP - Page 44

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