Mitsubishi Electronics MSH-A18ND service manual Revised EDITION-B, Contents

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Revision B:

•Remote controller model has been changed. •RoHS PARTS LIST has been added.

Please void OB427 REVISED EDITION-A.

INDOOR UNIT

SERVICE MANUAL

No. OB427

REVISED EDITION-B

Wireless type

Models

MSH-A18ND - S1

MSH-A24ND - S1

Outdoor unit service manual

MUH-A·ND Series (OB428)

CONTENTS

1. TECHNICAL CHANGES ····································2

2. PART NAMES AND FUNCTIONS······················2

3.SPECIFICATION·················································4

4.OUTLINES AND DIMENSIONS ·························5

5.WIRING DIAGRAM ············································6

 

6. REFRIGERANT SYSTEM DIAGRAM ················7

 

7.

SERVICE FUNCTIONS ······································8

MSH-A18ND

8. TROUBLESHOOTING······································10

MSH-A24ND

9. DISASSEMBLY INSTRUCTIONS ····················18

 

10.PARTS LIST······················································20

11.RoHS PARTS LIST···········································23

NOTE:

This service manual describes technical data of the indoor units.

RoHS compliant products have <G> mark on the spec name plate.

For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).

TM

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Contents Revised EDITION-B ContentsTechnical Changes AccessoriesPart Names and Functions Indoor Unit MSH-A18ND MSH-A24NDRemote Controller MSH-A18ND MSH-A24ND MSH-A18ND MSH-A24ND SpecificationMSH-A18ND MSH-A24ND Indoor Unit Outlines and DimensionsMSH-A18ND Indoor Unit Wiring DiagramMSH-A24ND Indoor Unit Refrigerant System Diagram MSH-A18ND MSH-A24ND Service FunctionsHow to release Auto Restart Function Take care of the following during servicing TroubleshootingInstruction of troubleshooting Troubleshooting check table Trouble criterion of main parts Check of indoor fan motor Check of indoor electronic control P.C. board How to check mis-wiring Indoor electronic control P.C. board MSH-A18ND MSH-A24ND Indoor Unit Operating Procedure Photos Disassembly InstructionsOperating Procedure Photos Parts List non-RoHS compliant Accessory and Remote Controller AIR Cleaning Filter RoHS Parts List RoHS compliant Vane Motor Vertical AIR Cleaning Filter Page Page Made in Japan