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Mitsubishi Electric MUZ-FS15NA User Manual

Mitsubishi Electric MUZ-FS15NA
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-FS15NA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelMUZ-FS15NA
CategoryAir Conditioner
LanguageEnglish

Summary

Technical Changes

Part Names and Functions

Specification

Test Condition

Details operating conditions and parameters for performance testing.

Refrigerant Piping and Charge Specifications

Outlines maximum piping length, height difference, and required refrigerant charge.

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Data

Performance Data

Presents detailed cooling and heating performance metrics under various conditions.

Performance Curve: Cooling

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

Performance Curve: Heating

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

Condensing Pressure Charts

Displays condensing pressure based on ambient and indoor temperatures.

Standard Operation Data

Summarizes key operating parameters like capacity, power input, and pressures.

Capacity and Input Correction by Inverter Frequency

Correction factors for capacity and input based on inverter output frequency.

Fixed-Frequency Operation Test Run

Instructions on how to perform a fixed-frequency test run operation.

Actuator Control

Outdoor Fan Motor Control

Explains the interlocking control of the outdoor fan motor with the compressor.

R.V. Coil Control

Describes the control sequence for the reversing valve coil in cooling and heating.

Sensor and Actuator Relationships

Details how sensors interact with system actuators like compressor and fan.

Service Functions

Defrost Finish Temperature Setting

Procedure to change the defrost finish temperature using a jumper.

Pre-Heat Control Setting

Instructions to activate pre-heat control to prevent compressor issues.

Troubleshooting

Troubleshooting Precautions

Important safety and preparatory steps before starting troubleshooting.

Failure Mode Recall Function

Procedure to recall and diagnose memorized failure modes using the remote controller.

Outdoor Unit Failure Mode Table

Lists LED blinking patterns and corresponding failure modes for the outdoor unit.

Troubleshooting Check Table

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

Component Troubleshooting Criteria

Provides resistance and voltage criteria for checking key components.

Troubleshooting Diagnostic Flows

Step-by-step diagnostic flows for common issues.

Specific Troubleshooting Checks

Procedures for diagnosing refrigerant circuit issues and operation stops.

Electromagnetic Noise Troubleshooting

Steps to identify and resolve electromagnetic noise affecting TVs and radios.

Disassembly Instructions

MUZ-FS06/09/12 Model Cabinet Removal

Step-by-step guide for removing the cabinet for MUZ-FS06/09/12 models.

MUZ-FS06/09/12 Model Inverter Assembly and P.C. Board Removal

Detailed steps to remove the inverter assembly and P.C. board for MUZ-FS06/09/12 models.

MUZ-FS06/09/12 Model R.V. Coil Removal

Instructions for removing the reversing valve coil unit for MUZ-FS06/09/12 models.

MUZ-FS06/09/12 Model Thermistor Removal

Steps for removing various thermistors for MUZ-FS06/09/12 models.

MUZ-FS06/09/12 Model Outdoor Fan Motor Removal

Guide for safely removing the outdoor fan motor for MUZ-FS06/09/12 models.

MUZ-FS06/09/12 Model Compressor and 4-Way Valve Removal

Procedures for removing the compressor and 4-way valve for MUZ-FS06/09/12 models.

MUZ-FS15/18 Model Cabinet Removal

Step-by-step guide for removing the cabinet for MUZ-FS15/18 models.

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

Detailed steps to remove the inverter assembly and P.C. board for MUZ-FS15/18 models.

MUZ-FS15/18 Model Thermistor Removal

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

MUZ-FS15/18 Model Outdoor Fan Motor Removal

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

MUZ-FS15/18 Model Compressor and 4-Way Valve Removal

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

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