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Mitsubishi Electric MUZ-FS06NA User Manual

Mitsubishi Electric MUZ-FS06NA
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-FS06NA Specifications

General IconGeneral
CategoryAir Conditioner
SeriesMSZ-FS
Cooling Capacity6, 000 BTU/h
Heating Seasonal Performance Factor (HSPF)10.0
RefrigerantR410A
Operating Temperature (Cooling)14°F to 115°F
Power Supply208/230V, 1 Phase, 60Hz
Sound Level19 dB(A) (Indoor, Quiet Mode)

Summary

TECHNICAL CHANGES

PART NAMES AND FUNCTIONS

SPECIFICATION

OUTLINES AND DIMENSIONS

WIRING DIAGRAM

REFRIGERANT SYSTEM DIAGRAM

DATA

PERFORMANCE DATA

Detailed performance metrics for cooling and heating operations.

PERFORMANCE CURVES

Graphical representation of cooling and heating performance under various conditions.

CONDENSING PRESSURE CHARTS

Pressure data for cooling and heating modes based on ambient conditions.

STANDARD OPERATION DATA

Key operating parameters and specifications for different models.

ACTUATOR CONTROL

OUTDOOR FAN MOTOR CONTROL

Control logic for the outdoor fan motor, interlocking with the compressor.

R.V. COIL CONTROL

Control logic for the reversing valve coil during heating and cooling modes.

SENSOR AND ACTUATOR RELATIONSHIP

Table showing sensor purpose and their relation to actuators.

SERVICE FUNCTIONS

DEFROST SETTING ADJUSTMENT

Adjusting the defrost finish temperature by modifying a jumper.

PRE-HEAT CONTROL SETTING

Activating pre-heat control to prevent compressor startup issues in low temperatures.

TROUBLESHOOTING

TROUBLESHOOTING PRECAUTIONS

Safety precautions and checks before starting troubleshooting procedures.

FAILURE MODE RECALL FUNCTION

Procedure to recall and identify past failure modes using indoor unit indicators.

TROUBLESHOOTING CHECK TABLE

Table correlating LED indications with abnormal points, conditions, and remedies.

MAIN PARTS TROUBLESHOOTING CRITERIA

Resistance and voltage criteria for checking major components like sensors, motors, and coils.

TROUBLESHOOTING FLOWCHARTS

Step-by-step diagnostic flows for common issues like inverter, compressor, and power supply.

TEST POINT DIAGRAMS AND VOLTAGES

Diagrams showing test points and voltage references on the inverter P.C. board.

DISASSEMBLY INSTRUCTIONS

REMOVING THE CABINET

Step-by-step guide for removing the external cabinet and panels.

REMOVING THE INVERTER ASSEMBLY AND P.C. BOARD

Instructions for safely removing the inverter assembly and P.C. board.

REMOVING THE R.V. COIL

Procedure for removing the Reversing Valve (R.V.) coil.

REMOVING THERMISTORS

Steps to remove various thermistors from the unit.

REMOVING OUTDOOR FAN MOTOR

Instructions for removing the outdoor fan motor assembly.

REMOVING COMPRESSOR AND 4-WAY VALVE

Steps for removing the compressor and the 4-way valve.

CABINET REMOVAL FOR FS15/18 MODELS

Guide for cabinet removal specific to FS15/18 models.

INVERTER ASSEMBLY AND P.C. BOARD REMOVAL FOR FS15/18 MODELS

Instructions for removing the inverter assembly and P.C. board for FS15/18 models.

THERMISTOR REMOVAL FOR FS15/18 MODELS

Steps to remove various thermistors for FS15/18 models.

OUTDOOR FAN MOTOR REMOVAL FOR FS15/18 MODELS

Instructions for removing the outdoor fan motor for FS15/18 models.

COMPRESSOR AND 4-WAY VALVE REMOVAL FOR FS15/18 MODELS

Steps for removing the compressor and 4-way valve for FS15/18 models.

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