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Mitsubishi Electric MUZ-FS06NAH User Manual

Mitsubishi Electric MUZ-FS06NAH
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-FS06NAH Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUZ-FS06NAH
CategoryAir Conditioner
LanguageEnglish

Summary

Technical Changes

Part Names and Functions

Specification

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Data

7-1. Performance Data

Presents performance data for cooling capacity under various conditions.

7-2. Performance Curves

Provides cooling performance curves showing capacity and power consumption based on operating conditions.

7-3. Condensing Pressure Charts

Details condensing pressure charts for cooling operation based on indoor/outdoor temperatures.

7-4. Standard Operation Data

Lists standard operation data for cooling and heating, including capacity, power, and airflow.

7-5. Capacity and Input Correction by Inverter Frequency

Shows how cooling and heating capacity/input are affected by inverter frequency.

7-6. Fixed-Frequency Operation (Test Run)

Details the procedure for operating the unit in fixed-frequency test run mode.

Actuator Control

8-1. Outdoor Fan Motor Control

Describes the control logic for the outdoor fan motor, interlocking with compressor operation.

8-2. Reversing Valve Coil Control

Explains the control of the reversing valve (R.V. coil) for heating and cooling modes.

8-3. Sensor and Actuator Relationship

Illustrates the relationship between system sensors and various actuators.

Service Functions

9-1. Defrost Setting Change

Details how to change the defrost finish temperature settings.

9-2. Pre-Heat Control Setting

Explains how to activate the pre-heat control to prevent compressor start-up issues.

Troubleshooting

10-1. Troubleshooting Cautions

Provides essential safety precautions and checks before performing troubleshooting.

10-2. Failure Mode Recall Function

Describes how to recall and interpret failure modes for troubleshooting.

10-3. Troubleshooting Check Table

A table correlating symptoms, LED indications, conditions, and remedies for troubleshooting.

10-4. Troubleshooting Criteria for Main Parts

Provides resistance and measurement criteria for diagnosing main components.

10-5. Troubleshooting Flows

Outlines systematic troubleshooting procedures for various system issues.

10-6. Test Point Diagram and Voltage

Illustrates test points and voltage specifications on the inverter P.C. board.

Disassembly Instructions

1. Removing the cabinet

Procedure for removing the outer cabinet of the unit.

2. Removing the inverter assembly, inverter P.C. board

Guide to removing the inverter assembly and its P.C. board.

3. Removing R.V. coil

Procedure for removing the reversing valve (R.V.) coil component.

4. Removing Thermistors and Heat Exchanger

Instructions for removing thermistors and heat exchanger components.

5. Removing outdoor fan motor

Instructions for safely removing the outdoor fan motor assembly.

6. Removing the compressor and 4-way valve

Steps to detach and remove the compressor and the 4-way valve.

7. Removing the cabinet

Procedure for removing the outer cabinet of the unit.

8. Removing Inverter Assembly and P.C. Board

Guide to removing the inverter assembly and its P.C. board.

9. Removing Thermistors and Heat Exchanger

Instructions for removing thermistors and heat exchanger components.

10. Removing Outdoor Fan Motor

Steps for removing the outdoor fan motor assembly.

11. Removing Compressor and 4-way Valve

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

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