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Mitsubishi Electric MUZ-FS09NA User Manual

Mitsubishi Electric MUZ-FS09NA
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-FS09NA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUZ-FS09NA
CategoryAir Conditioner
LanguageEnglish

Summary

Technical Changes

Part Names and Functions

Specification

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Data

Cooling Capacity Performance Data

Detailed performance data for cooling mode, including capacity and efficiency metrics.

Cooling Capacity Correction Factors

Factors to adjust cooling capacity based on refrigerant piping length.

Heating Capacity Performance Data

Detailed performance data for heating mode, including capacity and power consumption.

Cooling Performance Curves

Graphical representation of cooling capacity and power consumption vs. temperature.

Heating Performance Curves

Graphical representation of heating capacity and power consumption vs. temperature.

Standard Operation Data

Table summarizing key operational parameters for different models.

Inverter Frequency Capacity & Input Correction

Graphs showing capacity and input correction factors based on inverter frequency.

Actuator Control

Outdoor Fan Motor Control Logic

Describes the interlocking control between the fan motor and compressor.

Reversing Valve Coil Control

Control logic for the reversing valve during heating and cooling.

Sensor to Actuator Relation Table

Table mapping sensors to their corresponding actuator control functions.

Service Functions

Defrost Finish Temperature Setting Adjustment

Procedure to change the defrost finish temperature setting.

Pre-Heat Control Setting and Purpose

Explanation and activation of the pre-heat control for compressor protection.

Troubleshooting

Troubleshooting Precautions and Safety

Important safety notes and checks before starting troubleshooting.

Failure Mode Recall Function Procedure

How to recall and interpret stored failure modes from the unit's memory.

Outdoor Unit Failure Mode Diagnosis Table

Table detailing LED blinking patterns for outdoor unit faults and remedies.

Troubleshooting Check Table (LED Indicators)

A table correlating LED indications with specific faults and remedies.

Main Part Troubleshooting Criteria

Resistance and test criteria for key components like thermistors, compressor, and motors.

Troubleshooting Flowcharts

Step-by-step diagnostic flowcharts for various components and issues.

Test Points and Voltage Specifications

Diagrams and voltage values for checking electrical components and circuits.

Disassembly Instructions

Cabinet Removal Procedure (MUZ-FS06/09/12 Models)

Step-by-step instructions for removing the outer cabinet of specific models.

Inverter Assembly and P.C. Board Removal

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

Reversing Valve (R.V.) Coil Removal

Steps to remove the reversing valve coil.

Thermistor Removal Procedures

Instructions for removing various thermistors from the unit.

Outdoor Fan Motor Removal

Steps for removing the outdoor fan motor assembly.

Compressor and 4-Way Valve Removal

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

Cabinet Removal Procedure (MUZ-FS15/18 Models)

Step-by-step instructions for removing the outer cabinet of specific models.

Inverter Assembly and P.C. Board Removal (MUZ-FS15/18)

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

Thermistor Removal (MUZ-FS15/18 Models)

Instructions for removing various thermistors for MUZ-FS15/18 models.

Outdoor Fan Motor Removal (MUZ-FS15/18 Models)

Steps for removing the outdoor fan motor for MUZ-FS15/18 models.

Compressor and 4-Way Valve Removal (MUZ-FS15/18 Models)

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

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