Mitsubishi Electric Mr.Slim MUZ-FE09NA User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 2
3. SPECIFICATION ················································ 3
4. OUTLINES AND DIMENSIONS ························ 5
5. WIRING DIAGRAM ············································ 6
6. REFRIGERANT SYSTEM DIAGRAM ··············· 7
7. DATA ·································································· 9
8. ACTUATOR CONTROL ··································· 16
9. SERVICE FUNCTIONS ··································· 17
10. TROUBLESHOOTING ····································· 17
11. DISASSEMBLY INSTRUCTIONS ···················· 36
Models
MUZ-FE09NA
MUZ-FE12NA
MUZ-FE18NA
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT
Indoor unit service manual
MSZ-FE•NA Series (OBH542)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
TM
HFC
utilized
R410A
No. OBH543
REVISED EDITION-A
PARTS CATALOG (OBB543)
Revision A:
• MUZ-FE18NA has been added.
Please void OBH543.
MUZ-FE09NA
MUZ-FE12NA

Mitsubishi Electric Mr.Slim MUZ-FE09NA Specifications

General

Brand	Mitsubishi Electric
Model	Mr.Slim MUZ-FE09NA
Category	Air Conditioner
Language	English

Summary

TECHNICAL CHANGES

REFRIGERANT SYSTEM DIAGRAM

DATA

7-1. PERFORMANCE DATA

7-2. PERFORMANCE CURVE

7-3. CONDENSING PRESSURE

7-4. STANDARD OPERATION DATA

Comprehensive table of operational data for cooling and heating modes.

7-5. CAPACITY AND INPUT CORRECTION BY INVERTER OUTPUT FREQUENCY

Graphs showing how capacity and input change with inverter frequency.

7-6. HOW TO OPERATE FIXED-FREQUENCY OPERATION (Test run operation)

ACTUATOR CONTROL

SERVICE FUNCTIONS

TROUBLESHOOTING

10-1. CAUTIONS ON TROUBLESHOOTING

Important safety and preliminary checks before troubleshooting.

10-2. FAILURE MODE RECALL FUNCTION

2. Flow chart of the detailed outdoor unit failure mode recall function

3. Outdoor unit failure mode table

Table correlating LED indications to specific failure modes and remedies.

10-3. TROUBLESHOOTING CHECK TABLE

Table detailing symptoms, LED indications, conditions, and remedies for faults.

10-4. TROUBLE CRITERION OF MAIN PARTS

Lists criteria for checking the functionality of major components.

10-5. TROUBLESHOOTING FLOW

Provides diagnostic flowcharts for various troubleshooting scenarios.

10-6. TEST POINT DIAGRAM AND VOLTAGE

DISASSEMBLY INSTRUCTIONS

11-1. MUZ-FE09NA MUZ-FE12NA

11-2. MUZ-FE18NA