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Mitsubishi Heavy Industries SRK25ZJP-S User Manual

Mitsubishi Heavy Industries SRK25ZJP-S
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TECHNICAL MANUAL
Manual No.'10•SRK-T-100
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
SRK25ZJP-S
SRK35ZJP-S
SRK50ZJP-S
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Mitsubishi Heavy Industries SRK25ZJP-S Specifications

General IconGeneral
BrandMitsubishi Heavy Industries
ModelSRK25ZJP-S
CategoryAir Conditioner
LanguageEnglish

Summary

Specifications

Exterior Dimensions (Indoor Unit)

Exterior Dimensions (Outdoor Unit)

Usage Range and Limitations

Application Data & Safety Precautions

General Safety Precautions

Essential safety guidelines for installation and handling of the air conditioner unit.

Pre-Installation Checklist

Installation Location Selection Guide

Earth Grounding Procedures

Indoor Unit Installation Procedure

Outdoor Unit Installation Procedure

Refrigerant Piping Connection

Refrigerant Pipe Connection Steps

Detailed steps for connecting the refrigerant pipes on both liquid and gas sides.

Refrigerant Circuit Air Purge

Steps for purging air from the refrigerant circuit after connecting pipes.

Installation Test and Checks

Microcomputer Operation Control

Heating Operation Details

Cooling Operation Details

Automatic Operation Mode

Protective Control Functions

Protective Control Functions (Continued)

Compressor Overheat Protection

Current Safe Operation

Current Cut Protection

Outdoor Unit Failure Detection

Serial Signal Transmission Error Protection

Maintenance Data and Troubleshooting

General Maintenance Cautions

Important safety warnings and precautions to follow before performing maintenance.

Pre-Troubleshooting Checks

Initial checks to perform before starting troubleshooting procedures for unit issues.

Troubleshooting: Unit Not Running

Step-by-step guide to diagnose and resolve issues when the air conditioner does not start.

Troubleshooting: Unit Running Issues

Self-Diagnosis Table

Service Mode Access and Data

Service Mode Terminology

Defines terms like Service Mode, Service Data, Self-diagnosis Data, and Stop Data.

Service Mode Display Procedure

Step-by-step guide to enter and navigate the service mode for diagnostics.

Self-Diagnosis Data Interpretation

Stop Data Interpretation

Error and Stop Code Table

Remote Controller Information Tables

Sensor Temperature Data Tables

Discharge Pipe Temperature Table

Service Data Record Form

Trouble Inspection Procedures

Sensor Error Inspection

Diagnostic steps for sensor connection and resistance issues.

Indoor Fan Motor Error Inspection

Procedures to diagnose issues with the indoor fan motor or PCB.

Current Cut Troubleshooting

Outdoor Unit Trouble Diagnosis

Current Safe Stop Troubleshooting

Compressor Overheat Inspection

Signal Transmission Error Inspection

Outdoor Fan Motor Error Inspection

Rotor Lock Troubleshooting

Sensor Phenomena: Shortcircuit/Wire Breakage

Indoor Electrical Equipment Checks

Indoor PCB Check Procedure

Steps to check voltages and fuses on the indoor PCB for troubleshooting.

Indoor Fan Motor Check

Wireless Remote Controller Check

Outdoor Unit Inspection Points

Outdoor Unit Power & Signal Inspection

Checking power supply voltage and serial signal integrity for the outdoor unit.

Outdoor Unit Sensor Resistance Check

Measuring sensor resistance values in the outdoor unit for fault diagnosis.

Outdoor Unit Power Transistor Inspection

Procedure for inspecting the power transistor in the outdoor unit.

Outdoor Fan Motor Inspection

Details on how to inspect the outdoor unit's fan motor.

Outdoor EEV Inspection

Procedure for inspecting the electronic expansion valve in the outdoor unit.

EEV Inspection Details

EEV Separate Unit Inspection

Outdoor Fan Motor Check Procedure

Outdoor Fan Motor Resistance Check

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