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Mitsubishi Electric MUZ-FS12NA User Manual

Mitsubishi Electric MUZ-FS12NA
54 pages
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Models
MUZ-FS06NA
-
U1
MUZ-FS06NAH
-
U1
MUZ-FS09NA
-
U1
MUZ-FS09NAH
-
U1
MUZ-FS12NA
-
U1
MUZ-FS12NAH
-
U1
MUZ-FS15NA
-
U1
MUZ-FS15NAH
-
U1
MUZ-FS18NA
-
U1
MUZ-FS18NAH
-
U1
PARTS CATALOG (OBB873)
MUZ-FS06NA
MUZ-FS09NA
MUZ-FS12NA
MUZ-FS06NAH
MUZ-FS09NAH
MUZ-FS12NAH
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS ··················3
3. SPECIFICATION ········································4
4. OUTLINES AND DIMENSIONS ·····················6
5. WIRING DIAGRAM ·····································8
6. REFRIGERANT SYSTEM DIAGRAM ··········· 10
7. DATA······················································ 12
8. ACTUATOR CONTROL ····························· 23
9. SERVICE FUNCTIONS ······························ 24
10. TROUBLESHOOTING ······························· 25
11. DISASSEMBLY INSTRUCTIONS ················· 46
HFC
utilized
R410A
OUTDOOR UNIT
SERVICE MANUAL
No. OBH873
Indoor unit service manual
MSZ-FS•NA Series (OBH872)

Table of Contents

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Mitsubishi Electric MUZ-FS12NA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUZ-FS12NA
CategoryAir Conditioner
LanguageEnglish

Summary

TECHNICAL CHANGES

PART NAMES AND FUNCTIONS

SPECIFICATION

OUTLINES AND DIMENSIONS

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

DATA

COOLING CAPACITY DATA

Provides detailed cooling capacity figures under various conditions.

HEATING CAPACITY DATA

Details heating capacity under various indoor and outdoor conditions.

PERFORMANCE CURVES

Graphical representation of cooling and heating performance.

STANDARD OPERATION DATA

Summary of standard operating data for various models.

ACTUATOR CONTROL

SENSOR AND ACTUATOR RELATIONSHIPS

Maps sensors to their corresponding actuators and functions.

SERVICE FUNCTIONS

DEFROST SETTING ADJUSTMENT

How to modify the defrost finish temperature settings.

PRE-HEAT CONTROL SETTING

Instructions for activating the pre-heat control function.

TROUBLESHOOTING

CAUTIONS ON TROUBLESHOOTING

Important precautions and checks before starting troubleshooting.

FAILURE MODE RECALL FUNCTION

Procedure for recalling and interpreting stored failure modes.

OUTDOOR UNIT FAILURE MODES

Table detailing outdoor unit failure modes, symptoms, and remedies.

TROUBLESHOOTING CHECK TABLE

Table correlating LED indications to specific faults and remedies.

MAIN PARTS TROUBLESHOOTING CRITERIA

Provides resistance and voltage criteria for testing major components.

TEST POINT DIAGRAM AND VOLTAGE

Diagrams and voltage values for testing specific points.

ELECTROMAGNETIC NOISE CONSIDERATIONS

DISASSEMBLY INSTRUCTIONS

CABINET REMOVAL

Steps to remove the outer cabinet panels.

INVERTER ASSEMBLY AND P.C. BOARD REMOVAL

Procedure for removing the inverter assembly and P.C. board.

COMPRESSOR AND 4-WAY VALVE REMOVAL

Procedure for removing the compressor and 4-way valve.

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