Hitachi RCI User Manual

N O T E
• The thermistor protection and securing system is the
same on the gas and liquid pipe.
• The thermistors are secured with brackets.
10.2.12 Removal of the electronic expansion valve coil
Remove the optional air panel in line with the instructions given in
chapter Removal of the optional air panel, see on page 278.
Remove the fan duct and the fan as indicated in chapter Removal
of the fan duct and the fan, see on page 280.
Remove the drain pan as indicated in chapter Removal of the drain
pan, see on page 281.
Remove the electronic expansion valve butyl sheet.
Secure the body of the valve using an appropriate wrench and
loosen the nut with another wrench, turning it anti-clockwise.
10 Servicing
284
SMGB0063 rev. 1 - 10/2010

Hitachi RCI Specifications

General

Brand	Hitachi
Model	RCI
Category	Air Conditioner
Language	English

Summary

General Information and Safety

Safety Symbols and Precautions

Explains safety symbols (Danger, Caution, Note) and general safety guidelines for unit installation and operation.

Unit Installation

RCI 4-way Cassette Unit Installation

RPI/RPIM Ducted Unit Installation

RPK Wall Mounted Unit Installation

RPF/RPFI Floor Unit Installation

Piping Work and Refrigerant Charge

Gas Refrigerant Pipe Selection

Guidelines for selecting correct gas refrigerant pipe sizes based on outdoor unit power.

Copper Pipe Specifications and Connections

Refrigerant and Drain Hose Installation

Specific instructions for installing refrigerant pipes and drain hoses for various indoor unit types.

Electrical Wiring

Unit Electrical Wiring and Connection

General guidelines for wiring, main switch selection, and power cable sizing.

Setting of DIP switches and RSW switches

Control System

Device Control System Overview

Explains the purpose of control for compressor, expansion valves, fans, and solenoid valves.

Test Run

Pre-Test Run Checks and Procedures

Essential checks and procedures before performing the system test run.

Test Procedure with Remote Control

Step-by-step guide for conducting the test run using a wired remote control.

Test Run Checklist

Troubleshooting

RPK Unit PCB Self-Check

Procedure for self-checking the indoor unit PCB using relays and DIP switches.

Electronic Expansion Valve Check Procedure

Servicing Procedures

RCI 4-way Cassette Servicing

Step-by-step guide for removing components of RCI 4-way cassette units.

RCIM Compact Cassette Servicing

Step-by-step guide for removing components of RCIM compact cassette units.

RCD 2-way Cassette Servicing

RPK Wall Mounted Unit Servicing

RPF(I) Floor Unit Servicing

Electrical Checks of Main Parts

Thermistor Electrical Checks

Electronic Expansion Valve Checks

Maintenance Notes

Regular Equipment Maintenance Procedures

Indoor Heat Exchanger Cleaning Guide

Refrigerant Collection for Replacement

Procedure for safely collecting refrigerant when replacing an indoor unit.