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Mitsubishi Electric MSZ-AY25VGK-SC1 User Manual

Mitsubishi Electric MSZ-AY25VGK-SC1
52 pages
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Models
MSZ-AY25VG -
ET1
MSZ-AY35VG -
ET1
MSZ-AY42VG -
ET1
MSZ-AY50VG -
ET1
MSZ-AY25VGK -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY35VGK -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY42VGK -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY50VGK -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY25VGKP -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY35VGKP -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY42VGKP -
E1
,
SC1
,
ET1
,
ER1
MSZ-AY50VGKP -
E1
,
SC1
,
ET1
,
ER1
SERVICE MANUAL
INDOOR UNIT
PARTS CATALOG (OBB932)
CONTENTS
1. TECHNICAL CHANGES ······························3
2. PART NAMES AND FUNCTIONS ··················4
3. SPECIFICATION ········································5
4. NOISE CRITERIA CURVES ··························6
5. OUTLINES AND DIMENSIONS ·····················7
6. WIRING DIAGRAM ·····································8
7. REFRIGERANT SYSTEM DIAGRAM ··········· 13
8. SERVICE FUNCTIONS ······························14
9. MICROPROCESSOR CONTROL ·················20
10. TROUBLESHOOTING ······························· 30
11. DISASSEMBLY INSTRUCTIONS ················· 45
Outdoor unit service manual
MUZ-AY∙VG/VGH Series (OBH931)
MXZ-F∙VF/VFH Series (OBH790)
No. OBH932
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Mitsubishi Electric MSZ-AY25VGK-SC1 Specifications

General IconGeneral
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR32
Power Supply220-240 V, 50 Hz
Weight (Outdoor Unit)28 kg
Outdoor Unit Weight28 kg
Energy Efficiency Class CoolingA++
Noise Level (Indoor Unit)19 dB(A) (Quiet Mode)
TypeSplit System Air Conditioner
Outdoor Unit Dimensions (HxWxD)550 x 800 x 285 mm

Summary

Specification

Wiring Diagram

Refrigerant System Diagram

Service Functions

Remote Controller Pairing

How to set remote controller exclusively for a particular indoor unit.

Auto Restart Function

Memorizes and restarts operation settings after power loss.

Wi-Fi Interface Setup

Guides setting up Wi-Fi interface for MELCloud connection.

Room Temperature Correction

Adjusts room temperature sensor correction value via remote controller.

Microprocessor Control

Troubleshooting

Failure Mode Recall Function

Recalls and identifies past abnormal conditions memorized by the unit.

Instruction of Troubleshooting

General procedures and checks for diagnosing unit malfunctions.

Troubleshooting Check Table

Lists symptoms, conditions, and remedies for various unit abnormalities.

Troubleshooting Criterion of Main Parts

Provides resistance values and checks for key internal components.

Troubleshooting Flow

Step-by-step diagnostic flows for specific component failures.

Test Point Diagram and Voltage

Diagrams and voltage specifications for diagnosing electronic control boards.

Disassembly Instructions

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