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Hitachi RAS-3HVNC1 User Manual

Hitachi RAS-3HVNC1
44 pages
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UTOPIA IVX PREMIUM / IVX STANDARD SERIES
RAS-(2/2.5)HVNP1 / RAS-3HVNC1
UTOPIA ES SERIES
RAS-3HVRNS3
INSTALLATION AND OPERATION MANUAL

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Hitachi RAS-3HVNC1 Specifications

General IconGeneral
Star Rating3 Star
Indoor Unit Weight9 kg
TypeSplit AC
Power Supply50Hz
Outdoor Unit Dimensions (W x H x D)780 x 540 x 285 mm

Summary

2 SAFETY

4 IMPORTANT NOTICE

DANGER: Pressure Vessel and Safety Device

Critical warnings regarding high pressure vessels and explosion risks.

CAUTION: Commercial & Industrial Use

Warnings about using the unit in commercial/industrial settings and EMI.

6 TRANSPORTATION AND HANDLING

7 BEFORE OPERATION

Pre-operation Precautions and Checks

Essential steps and checks before starting the air conditioning system.

10 BASIC TROUBLESHOOTING

Common Troubleshooting Issues and Solutions

Addresses common operational problems like no operation or poor cooling/heating.

12 REFRIGERANT CYCLE

13 UNITS INSTALLATION

13.1 OUTDOOR UNITS INSTALLATION

Guidelines and precautions for installing the outdoor unit.

13.3 INSTALLATION PLACE PROVISION

14 REFRIGERANT PIPING & REFRIGERANT CHARGE

14.1 REFRIGERANT PIPING WORK

Covers materials, suspension methods, and brazing for refrigerant piping.

14.2 PIPING CONNECTION FOR OUTDOOR UNIT

Connecting Outdoor Unit Piping and Stop Valves

Details on connecting refrigerant pipes to the outdoor unit and its stop valves.

14.3 REFRIGERANT PIPING LENGTH

Refrigerant Piping Selection and Installation

Piping Selection and Distributor Installation

Guidance on selecting pipe sizes and installing distributors.

14.4 REFRIGERANT CHARGE

Refrigerant Charging Procedures

Steps for evacuating the system and charging refrigerant correctly.

14.6 REFRIGERANT CHARGING QUANTITY

Calculating and Setting Refrigerant Quantity

Instructions for calculating and setting the correct refrigerant charge.

15 DRAIN PIPING

16 ELECTRICAL WIRING

16.1 GENERAL CHECK

Pre-wiring checks, component selection, and compliance requirements.

16.2.1 Setting of DIP switches for outdoor unit

16.3 COMMON WIRING

17 INSTALLATION OF REMOTE CONTROLLER

18 TEST RUNNING

Test Run Procedure via Remote Control

Steps for performing a test run using the remote control switch.

18.2 TEST RUN PROCEDURE FROM OUTDOOR UNIT SIDE

Test Run Procedure via Outdoor Unit DIP Switch

Details on performing test runs using outdoor unit DIP switches.

Test Run Operation Modes and Settings

19 SAFETY SUMMARY & CONTROL DEVICE SETTING

20 TROUBLESHOOTING

Abnormality Codes and Leading Causes

Lists error codes, categories, content, and leading causes for troubleshooting.

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