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General| Brand | Hitachi |
|---|---|
| Model | RPK-1.5FSGM |
| Category | Air Conditioner |
| Language | English |
Guide to initial checks including switch settings, wiring, and display diagnostics.
Step-by-step procedures for diagnosing issues using alarm codes and check modes.
Methods for self-checking major components like PCBs and remote controls.
Procedures for conducting test runs using remote control or outdoor unit.
Detailed instructions for servicing outdoor units, including component removal.
Servicing procedures specific to In-the-Ceiling RPI models.
Servicing procedures for larger capacity RPI In-the-Ceiling models.
Disassembly and servicing steps for 4-Way Cassette indoor units.
Disassembly and servicing steps for 2-Way Cassette indoor units.
Disassembly and servicing steps for Wall Type indoor units.
Disassembly and servicing steps for Floor Type indoor units.
Disassembly and servicing steps for Floor Concealed Type indoor units.
Disassembly and servicing steps for Ceiling Type indoor units.
Procedures for servicing the Total Heat Exchanger unit.
Detailed instructions for cleaning indoor unit heat exchangers.
Procedure for safely collecting refrigerant before indoor unit replacement.
Specifications and arrangement details for the inverter unit.
Explanation of AC Chopper control for fan speed and its structure.
Details on the operation and stopping mechanism of auto-louvers.
Information on scroll compressor structure, low vibration, and compression principle.
Specifications and locations of thermistors for indoor and outdoor units.
Details on electronic expansion valves for outdoor and indoor units.
Information on high and low pressure sensors and their characteristics.
Mechanism and function of the high pressure protection device.
Specifications and circuit diagram for the noise filter.
Specifications for capacitors used in the inverter circuit.
Specifications for the reactor (DCL) used in the inverter circuit.
Details on optional functions for indoor units, including remote control and settings.
Input/output settings and unit selection for specific indoor unit series.
Configuration of optional functions for outdoor units, including sensors and controls.
Overview of remote control switch parts and their functions.
Details on the wireless remote control switch, its parts, and identification.
Operation and functions of the 7-Day Timer (PSC-5T).
Description of the Central Station (PSC-5S) interface and operation.
Case study on compressor failure caused by insufficient refrigerant charge.
Troubleshooting case for poor cooling with long refrigerant piping.
Analysis of high operating sound in In-the-Ceiling indoor units.
Troubleshooting guide for Alarm Code 31 related to unit combinations.
Addressing cooling issues caused by inadequate outdoor unit installation space.
Important considerations for designing and installing SET-FREE FXG/FX3 series.
Guidelines for selecting appropriate drain pipe sizes for indoor units.
Safety precautions and calculations regarding refrigerant leakage.
Routine maintenance checks for indoor and outdoor units.
Template for recording service and maintenance data using 7-segment display.
Template for recording service and maintenance data via remote control.
General service and maintenance record log.
