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Hitachi RPIM-3.0UNE1NH - User Manual

Hitachi RPIM-3.0UNE1NH
59 pages
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SERVICE MANUAL
HPS2017004HA

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Summary

1. OPTION LIST

Wired Remote Controller Functions and Setup

Covers installation, custom parameters, temperature settings, and basic operations for the wired remote controller.

Wireless Remote Controller Features and Operation

Details wireless remote controller models, operation modes, timers, and special functions like Auto and Powerful.

3. IR Receiver Installation and Operation

IR Receiver Installation Guide

Explains the parts, proper installation location, and connection of the IR receiver unit.

IR Receiver Operation and Signal Transmission

Describes how to send commands from the controller and the receiver's operational feedback.

2. TROUBLESHOOTING

Troubleshooting Guide and Fault Indicators

Provides a guide to checking fault codes displayed on control boards, remote controllers, and LEDs.

Fault Code Reference

Lists various outdoor and drive fault codes, their possible reasons, and troubleshooting steps.

Overload Fault Conditions and Solutions

Details specific overload issues in cooling and heating modes, including causes and corrective measures.

3. COMPONENT CHECKS

Refrigerant System Pressure Check

Outlines the procedure for checking the refrigerant system, including pressure testing and system flow.

Parts Unit Inspection

Describes methods for testing fan motors, compressor, fuse, capacitor, and other internal components.

4. DISASSEMBLY AND ASSEMBLY

Outdoor Unit Disassembly and Assembly Guide

Step-by-step instructions for safely disassembling and reassembling outdoor unit components like casing, motor, and compressor.

Indoor Unit Disassembly and Assembly Procedures

Provides instructions for disassembling ducted, cassette, and floor ceiling indoor units' fan motors and casings.

5. CONTROL LOGIC DESCRIPTION

Fan and Cooling Mode Operation Logic

Explains indoor fan running rules and compressor/outdoor fan control logic for fan-only and cooling modes.

Heating and Auto Mode Control Logic

Details the control logic for indoor fan and compressor operation during heating and auto modes.

Compressor Protection Mode Logic

Describes the logic for evaporator low-temperature and condenser high-temperature protection mechanisms.

Hitachi RPIM-3.0UNE1NH Specifications

General IconGeneral
Cooling Capacity (kW)3.0
Heating Capacity (kW)3.2
Energy Efficiency Ratio (EER)3.21
Coefficient of Performance (COP)3.61
RefrigerantR32
Indoor Unit Weight9 kg
TypeSplit System
Power Source220-240V, 50Hz
Outdoor Unit Noise Level50 dB(A)

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