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Mitsubishi PUY-A24NHA6 User Manual

Mitsubishi PUY-A24NHA6
128 pages
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SERVICE MANUAL
CONTENTS
1. REFERENCE MANUAL ································· 2
2. SAFETY PRECAUTION ································· 2
3. FEATURES ····················································· 6
4. SPECIFICATIONS ·········································· 7
5. DATA ······························································· 9
6. OUTLINES AND DIMENSIONS ··················· 13
7. WIRING DIAGRAM ······································ 16
8. WIRING SPECIFICATIONS ·························· 20
9.
REFRIGERANT SYSTEM DIAGRAM
············· 23
10. TROUBLESHOOTING ·································· 26
11. EASY MAINTENANCE FUNCTION·············· 91
12. FUNCTION SETTING ··································· 95
13.
MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER
···105
14. DISASSEMBLY PROCEDURE ··················· 114
R410A
Outdoor unit
[Model Name]
PUZ-A18NHA6
PUZ-A24NHA6
PUZ-A30NHA6
PUZ-A36NHA6
PUZ-A42NHA6
PUZ-A18NHA6-BS
PUZ-A24NHA6-BS
PUZ-A30NHA6-BS
PUZ-A36NHA6-BS
PUZ-A42NHA6-BS
PUY-A12NHA6
PUY-A18NHA6
PUY-A24NHA6
PUY-A30NHA6
PUY-A36NHA6
PUY-A42NHA6
PUY-A12NHA6-BS
PUY-A18NHA6-BS
PUY-A24NHA6-BS
PUY-A30NHA6-BS
PUY-A36NHA6-BS
PUY-A42NHA6-BS
[Service Ref.]
PUZ-A18NHA6
PUZ-A24NHA6
PUZ-A30NHA6
PUZ-A36NHA6
PUZ-A42NHA6
PUZ-A18NHA6-BS
PUZ-A24NHA6-BS
PUZ-A30NHA6-BS
PUZ-A36NHA6-BS
PUZ-A42NHA6-BS
PUY-A12NHA6
PUY-A18NHA6
PUY-A24NHA6
PUY-A30NHA6
PUY-A36NHA6
PUY-A42NHA6
PUY-A12NHA6-BS
PUY-A18NHA6-BS
PUY-A24NHA6-BS
PUY-A30NHA6-BS
PUY-A36NHA6-BS
PUY-A42NHA6-BS
PUZ-A24/30/36NHA6
PUY-A24/30/36NHA6
PARTS CATALOG (OCB577)
Notes:
•Thismanualdescribesservice
dataoftheoutdoorunitsonly.
•
RoHScompliantproductshave
<G>markonthespecname
plate.
SPLIT-TYPE,HEATPUMPAIRCONDITIONERS
SPLIT-TYPE,AIRCONDITIONERS
August 2015
No. OCH577
REVISED EDITION-A
•PleasevoidOCH577.
Revision:
•Updatedthetablein
"1.REFERENCEMANUAL"
in
REVISEDEDITION-A.
•Somedescriptionshavebeen
modified.
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Mitsubishi PUY-A24NHA6 Specifications

General IconGeneral
Heating Capacity3.2 kW
Seasonal Energy Efficiency Ratio (SEER)6.1
RefrigerantR410A
Indoor Unit Dimensions (WxHxD)800 x 300 x 200 mm
Outdoor Unit Dimensions (WxHxD)800 x 600 x 300 mm
Phase1
Heating Capacity (kW)3.2

Summary

Reference Manual

Safety Precautions

Essential safety guidelines, cautions, and precautions for handling refrigerants and during repair.

Wiring Specifications

Troubleshooting

Troubleshooting Procedures and Tables

Comprehensive guide for diagnosing and resolving unit issues, including action tables and problem-solving.

Troubleshooting Flowcharts and Symptoms

Provides visual flowcharts and symptom descriptions for diagnosing issues.

How to Check the Parts

Circuit Board Check Methods

Step-by-step procedures for checking outdoor controller, noise filter, power, ACTM, and fan motor boards.

Component Check Methods

Details on checking thermistors, linear expansion valves, solenoid coils, and motors for resistance.

Emergency Operation

Emergency Operation Procedures and Data

Instructions and data for operating the unit in emergency mode, including switch settings and operation data.

Function of Switches, Connectors and Jumpers

Display function of inspection for outdoor unit

Easy Maintenance Function

Initial Settings for Refrigerant Leakage Detection Function

Function Setting

Unit Function Setting via Remote Controller

How to set unit functions like temperature, fan speed, and timers using the remote controller.

Monitoring the Operation Data by the Remote Controller

Monitoring Operation Data via Remote Controller

Guides on how to view operation data, thermistor temperatures, and error history using the remote controller.

Disassembly Procedure

Standard Disassembly Procedures (Models 1)

Step-by-step instructions for removing top panel, fan motor, and electrical parts box.

Component Removal Procedures (Thermistors)

Instructions for removing thermistors <2-phase pipe>, <Ambient>, <Liquid>, <Comp. surface>, and <Suction>.

Valve and Switch Removal Procedures

Steps for removing 4-way valve, linear expansion valve, bypass valve, and high pressure switch.

Disassembly Procedures (Models 2)

Step-by-step instructions for removing panels, fan motor, and electrical parts box for specific models.

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