Mitsubishi Electric MSZ-GS18NA - U1 User Manual

Models
MSZ-GS06NA
-
U1
MSY-GS09NA
-
U1
MSZ-GS09NA
-
U1
MSY-GS12NA
-
U1
MSZ-GS12NA
-
U1
MSY-GS15NA
-
U1
MSZ-GS15NA
-
U1
MSY-GS18NA
-
U1
MSZ-GS18NA
-
U1
MSY-GS24NA
-
U1
MSZ-GS24NA
-
U1
MSY-GS30NA
-
U1
MSZ-GS30NA
-
U1
MSY-GS30NA2
-
U1
MSZ-GS30NA2
-
U1
MSY-GS36NA
-
U1
MSZ-GS36NA
-
U1
MSY-GS36NA2
-
U1
MSZ-GS36NA2
-
U1
SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES· ·····························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································7
4. OUTLINES AND DIMENSIONS ···················10
5. WIRING DIAGRAM ···································12
6. REFRIGERANT SYSTEM DIAGRAM ···········15
7. SERVICE FUNCTIONS ······························17
8. MICROPROCESSOR CONTROL ·················20
9. TROUBLESHOOTING ······························· 34
10. DISASSEMBLY INSTRUCTIONS ················· 59
No. OBH874
REVISED EDITION-A
INDOOR UNIT
Outdoor unit service manual
MUZ-GS•NA/NAH, MUY-GS•NA Series (OBH875)
MXZ-C•NA, MXZ-C•NAHZ Series (OCH573)
PARTS CATALOG (OBB874)
OBH874 is void.
Revision A:
• MSZ-GS06/09/12/15/18/24NA -
U1
,
MSY-GS09/12/15/18/24NA -
U1
,
MSZ-GS30/36NA2 -
U1
and
MSY-GS30/36NA2 -
U1
have been added.
MSZ-GS18NA
MSY-GS18NA

Mitsubishi Electric MSZ-GS18NA - U1 Specifications

General

Refrigerant	R410A
Indoor Unit Dimensions (W x H x D)	33-1/8 x 11-5/8 x 9-1/8 inches
Outdoor Unit Dimensions (W x H x D)	31-1/2 x 21-5/8 x 11-1/4 inches
Voltage	208/230V
Operating Temperature (Cooling)	14°F to 115°F
Cooling Capacity	18000 BTU/h
Power Supply	60 Hz
Operating Temperature (Heating)	75°F

Summary

Specifications

Wiring Diagrams

Refrigerant System Diagrams

Microprocessor Control and Functions

Air Conditioner Operational Modes

Covers COOL, DRY, HEAT, FAN, I FEEL CONTROL, AUTO modes, and timers.

Troubleshooting Guide

Failure Mode Recall Function

Recalls and displays past abnormal conditions for diagnosis.

Troubleshooting Check Table

Lists symptoms, conditions, and remedies for common operational errors.

Troubleshooting Flows

Diagnostic procedures, wiring checks, and component testing guides.

Disassembly Instructions

Disassembly for MSZ-GS06/09/12/15NA and MSY-GS09/12/15NA

Disassembly for MSZ-GS18NA and MSY-GS18NA

Disassembly for MSZ-GS24NA and MSY-GS24NA

Disassembly for MSZ-GS30/36NA Series