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Mitsubishi Electric MUZ-FS18NAH User Manual

Mitsubishi Electric MUZ-FS18NAH
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-FS18NAH Specifications

General IconGeneral
Cooling Capacity18, 000 BTU/h
Heating Capacity21, 000 BTU/h
Voltage208/230V
RefrigerantR410A
Operating Temperature (Cooling)14°F to 115°F
HSPF Rating10.0
Sound Level29 dB(A)
Power Supply1 Phase, 60 Hz
Operating Temperature (Heating)75°F

Summary

Unit Specifications

Cooling and Heating Capacity Specifications

Detailed performance metrics for cooling and heating modes across models.

Wiring and System Diagrams

Performance Data and Curves

Cooling Capacity Performance Data

Tables detailing cooling capacity under various indoor/outdoor conditions.

Heating Capacity Performance Data

Tables detailing heating capacity under various indoor/outdoor conditions.

Standard Operation Data

Actuator Control Logic

Sensor and Actuator Relationship

Table showing how sensors relate to compressor, LEV, fan motor, R.V. coil, and defrost heater.

Service Functions

Troubleshooting Guide

General Troubleshooting Cautions

Safety precautions and initial checks before starting troubleshooting.

Failure Mode Recall Function

Procedure to recall and analyze stored failure modes using the remote controller.

Outdoor Unit Failure Mode Table

Table correlating LED blinking patterns with specific failure modes and remedies.

Troubleshooting Check Table

Detailed table of symptoms, LED indications, conditions, and troubleshooting remedies.

Troubleshooting Criteria for Main Parts

Guidelines for checking resistance and continuity of key components.

Troubleshooting Flowcharts

Visual guides for diagnosing inverter, compressor, and other component issues.

Test Point Diagrams and Voltage Checks

Disassembly Instructions

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