Mitsubishi Electric PUY-A18NKA7 User Manual

1
SERVICE MANUAL
CONTENTS
1. REFERENCE MANUAL ································· 2
2. SAFETY PRECAUTION ································· 2
3. FEATURES ····················································· 7
4. SPECIFICATIONS ·········································· 8
5. DATA ····························································· 10
6. OUTLINES AND DIMENSIONS ··················· 14
7. WIRING DIAGRAM ······································ 17
8. WIRING SPECIFICATIONS ·························· 20
9. REFRIGERANT SYSTEM DIAGRAM ············· 21
10. TROUBLESHOOTING ·································· 24
11. EASY MAINTENANCE FUNCTION·············· 84
12. FUNCTION SETTING ··································· 87
13. MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER ·····95
14. DISASSEMBLY PROCEDURE ··················· 104
R410A
Outdoor unit
[Model Name]
PUZ-A12NKA7
PUZ-A18NKA7
PUZ-A24NHA7
PUZ-A30NHA7
PUZ-A36NKA7
PUZ-A42NKA7
PUZ-A12NKA7-BS
PUZ-A18NKA7-BS
PUZ-A24NHA7-BS
PUZ-A30NHA7-BS
PUZ-A36NKA7-BS
PUZ-A42NKA7-BS
PUY-A12NKA7
PUY-A18NKA7
PUY-A24NHA7
PUY-A30NHA7
PUY-A36NKA7
PUY-A42NKA7
PUY-A12NKA7-BS
PUY-A18NKA7-BS
PUY-A24NHA7-BS
PUY-A30NHA7-BS
PUY-A36NKA7-BS
PUY-A42NKA7-BS
[Service Ref.]
PUZ-A12NKA7
PUZ-A18NKA7
PUZ-A24NHA7
PUZ-A30NHA7
PUZ-A36NKA7
PUZ-A42NKA7
PUZ-A12NKA7-BS
PUZ-A18NKA7-BS
PUZ-A24NHA7-BS
PUZ-A30NHA7-BS
PUZ-A36NKA7-BS
PUZ-A42NKA7-BS
PUY-A12NKA7
PUY-A18NKA7
PUY-A24NHA7
PUY-A30NHA7
PUY-A36NKA7
PUY-A42NKA7
PUY-A12NKA7-BS
PUY-A18NKA7-BS
PUY-A24NHA7-BS
PUY-A30NHA7-BS
PUY-A36NKA7-BS
PUY-A42NKA7-BS
PUZ-A12/18NKA7
PUY-A12/18NKA7
PARTS CATALOG (OCB636)
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
February 2017
No. OCH636
REVISED EDITION-A
Revision:
•
CorrectedtheSHFvaluein
"5-4.STANDARDOPERATION
DATA"inREVISEDEDITION-A.
• Somedescriptionshavebeen
modified.
• OCH636 isvoid.

Mitsubishi Electric PUY-A18NKA7 Specifications

General

Brand	Mitsubishi Electric
Model	PUY-A18NKA7
Category	Air Conditioner
Language	English

Summary

SPECIFICATIONS

DATA

WIRING DIAGRAM

WIRING SPECIFICATIONS

REFRIGERANT SYSTEM DIAGRAM

TROUBLESHOOTING

TROUBLESHOOTING

General guidance on handling recurring and non-recurring troubles based on check codes.

CHECK POINT UNDER TEST RUN

Test run for wired remote controller <PAR-3xMAA ("x" represents 0 or later)>

HOW TO PROCEED "SELF-DIAGNOSIS"

Procedures for accessing and interpreting self-diagnosis information and error history.

SELF-DIAGNOSIS ACTION TABLE

Table correlating check codes with corresponding abnormalities and corrective actions.

<Abnormalities detected while unit is operating>

List of error codes and their associated detection methods and remedies during operation.

TROUBLESHOOTING OF PROBLEMS

Troubleshooting guide for common issues like remote controller display problems and operational failures.

HOW TO CHECK THE PARTS

Instructions and resistance values for testing various components like thermistors and motors.

EMERGENCY OPERATION

Procedure for enabling emergency operation and the associated precautions and data.

FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

<Display function of inspection for outdoor unit>

EASY MAINTENANCE FUNCTION

FUNCTION SETTING

DISASSEMBLY PROCEDURE