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Mitsubishi Heavy Industries FDC155KXZES1 User Manual

Mitsubishi Heavy Industries FDC155KXZES1
171 pages
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VRF INVERTER MULTI-SYSTEM AIR-CONDITIONERS
(OUTDOOR UNIT)
(Heat pump type)KXZ series
FDC121KXZEN1, 140KXZEN1, 155KXZEN1 (1 Phase)
FDC121KXZES1, 140KXZES1, 155KXZES1 (3 Phase)
SERVICE MANUAL
Manual No. '19 • KX-SM-318
Note:
(1) Regarding the Indoor unit series, refer to the No. ’17 • KX-T-266 and ’18 • KX-T-281.
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Mitsubishi Heavy Industries FDC155KXZES1 Specifications

General IconGeneral
BrandMitsubishi Heavy Industries
ModelFDC155KXZES1
CategoryAir Conditioner
LanguageEnglish

Summary

Operation control function by the outdoor control

Protective control

Outlines protective actions taken when discharge pipe temperature exceeds specified limits.

Option controls

Pump down operation control at removal of unit

Outlines the necessary conditions to initiate pump down operation for unit removal or refrigerant recovery.

VTCC : Variable Temperature and capacity control (VRF inverter Multi-system energy save control)

Describes the correction of target high/low pressure based on indoor load conditions for efficient operation.

SYSTEM TROUBLESHOOTING PROCEDURE

Basics of troubleshooting

Covers fundamental troubleshooting steps, including Mente PC connection and error data analysis.

Explanation of troubleshooting

Provides explanations for common troubleshooting steps and error codes encountered during diagnosis.

Troubleshooting

Troubleshooting guide for "Operates but does not cool" errors, detailing diagnosis and countermeasures.

Outdoor unit control PCB replacement procedure

Control PCB

Procedure and safety precautions for replacing the outdoor unit control PCB.

Inverter PCB

Detailed steps for exchanging the inverter PCB for specific KXZEN1 and KXZES1 models.

UNIT DELIVERY AND INSTALLATION

REFRIGERANT PIPING

Additional refrigerant charge

Instructions for calculating and adding refrigerant based on piping length and unit specifications for optimal performance.

ELECTRICAL WIRING WORK

TEST OPERATION

Before beginning operation

Crucial precautions and preliminary steps required before commencing test operation.

OUTDOOR UNIT DISASSEMBLY PROCEDURE

To remove the compressor (CM)

Detailed procedure for removing the compressor, including safety steps and component disconnection.

INDOOR UNIT DISASSEMBLY PROCEDURE

Precautions for safety

Critical safety warnings and precautions for disassembly of indoor unit components.

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