Mitsubishi Heavy Industries FDC121KXZES1 User Manual

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.

Mitsubishi Heavy Industries FDC121KXZES1 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDC121KXZES1
Category	Air Conditioner
Language	English

Summary

1. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

1.1 Remote control (Option parts)

Details wired and wireless remote controls, their functions, displays, and operation.

1.2 Operation control function by the wired remote control

1.3 Operation control function by the indoor control

1.4 Operation control function by the outdoor control

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

2. SYSTEM TROUBLESHOOTING PROCEDURE

2.1 Basics of troubleshooting

Outlines fundamental troubleshooting steps, including error data analysis and common checks.

2.2 Explanation of troubleshooting

2.3 Contents of troubleshooting

(a) List of inspection displays

2.4 Outdoor unit control PCB replacement procedure

(a) Control PCB

(b) Inverter PCB

■ Inverter checker for diagnosis of inverter output

3. ELECTRICAL WIRING

4. PIPING SYSTEM

6. ELECTRICAL WIRING WORK

6. OUTDOOR UNIT DISASSEMBLY PROCEDURE

7. INDOOR UNIT DISASSEMBLY PROCEDURE

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDTC series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDTW series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDU FDUM series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDTS series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDFW series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDE series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (FDFU FDFL series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (SAF-DX series)

DISASSEMBLY PROCEDURE PROCEDURE & PICTURES (SRK-ZS,FDK series)