Mitsubishi Heavy Industries R410A User Manual

S
S
E
E
R
R
V
V
I
I
C
C
E
E
M
M
A
A
N
N
U
U
A
A
L
L
F
F
D
D
A
A
S
S
e
e
r
r
i
i
e
e
s
s
S
S
p
p
l
l
i
i
t
t
S
S
y
y
s
s
t
t
e
e
m
m
s
s
F
F
D
D
A
A
S
S
e
e
r
r
i
i
e
e
s
s
M
M
u
u
l
l
t
t
i
i
S
S
y
y
s
s
t
t
e
e
m
m
s
s

Mitsubishi Heavy Industries R410A Specifications

General

Brand	Mitsubishi Heavy Industries
Model	R410A
Category	Air Conditioner
Language	English

Summary

Maintenance Data and Servicing Procedures

Evacuation Procedure

Procedure to purge impurities from the refrigerant equipment using a vacuum pump.

Refrigerant Charging

Procedure for charging refrigerant into the system after evacuation.

Trouble Shooting for Refrigerant Circuit

Diagnosing issues within the refrigerant circuit based on operating conditions.

Judgement of Operating Condition

Using pressure and temperature differences to diagnose refrigerant circuit issues.

Microcomputer Circuit Diagnosis

Selfdiagnosis Function

Utilizing the unit's self-diagnosis capabilities to identify faults.

Check Indicator Table

Table detailing error codes and LED indications for fault identification.

Outdoor Unit Side Diagnostics

Diagnostic information and procedures specific to the outdoor unit.

Display Sequence of Error

Understanding how error codes and indicator lamps are displayed.

Indoor Unit PCB Layout and Settings

Jumper Wire Modifications

Instructions for modifying jumper wires to change unit functions.

Control Change Switch Settings

Configuration settings for DIP switches on the control board.

Error Code Display and Checking Methods

Check Method When Error Code is Display

Step-by-step procedure to check errors using LED indicators and the display.

Power Supply Line Error Troubleshooting

Troubleshooting steps for power supply line errors based on LED indicators.

Specific Error Code Troubleshooting

Error Display "WAIT"

Troubleshooting for units displaying a "WAIT" status.

Error E1: Communication Error Between Remote Controller and Indoor Unit

Steps to resolve communication errors between the remote controller and indoor unit.

Error E6: Defective Indoor Unit Heat Exchanger Thermistor

Procedure for diagnosing and replacing a faulty indoor unit heat exchanger thermistor.

Error E7: Detective Return Air Thermistor

Procedure for diagnosing and replacing a faulty return air thermistor.

Outdoor Unit Error Diagnosis and Replacement

Error Diagnosis Procedures at the Outdoor Units Side

Methods for diagnosing issues specifically on the outdoor unit.

Replacement Parts for Outdoor Unit Controller

List of replaceable components for the outdoor unit controller.

Outdoor Unit Microcomputer PCB Replacement

Step-by-step guide for replacing the outdoor unit's microcomputer PCB.

Specific Outdoor Unit Error Troubleshooting

Error E5: Communications Error During Operation

Procedure to resolve communication errors occurring during unit operation.

Error E32: Power Supply Phases Reversed

Steps to diagnose and correct reversed power supply phase issues.

Error E33: Inverter Primary Current Abnormal

Procedure to diagnose and resolve inverter primary current abnormalities.

Error E34: Open Phase at L3 Phase of 52C Secondary Side

Steps to diagnose and fix an open phase issue in the 52C secondary side.

Component Check Methods

Power Transistor Module Check

Detailed procedure for checking the power transistor module and its drive circuit.

Remote Controller Operation and Settings

Check Abnormal Operation Data

How to view recorded abnormal operation data on the remote controller.

Wired Remote Controller Overview

Detailed explanation of the wired remote controller's interface and functions.

Setting Functions Using the Remote Controller

Guide on how to adjust various unit settings via the remote controller.

Function Setting Method

Step-by-step instructions for setting various functions using the remote controller.

Temperature Setting Range Adjustment

Changing the Remote Controller's Temperature Setting Range

Procedure for adjusting the adjustable temperature limits on the remote controller.

Test Operation Procedures

Cooling Test Operation Procedure

Instructions for performing a cooling test operation using the remote controller.

Checking Operation Data

How to access and view operational data recorded by the unit.

Test Run Methods and Settings

Methods for conducting test runs and configuring related switches.

Wireless Model Display Checks

Indication Board Displays

Explanation of indicator lights on the unit's indication board for wireless models.

Wireless Remote Controller Indicators

Explanation of the various indicator lights on the wireless remote controller.