Mitsubishi Heavy Industries FDUM50VH User Manual

Manual No.'19・SCM-SM-276
SERVICE MANUAL
INVERTER MULTI-SPLIT SYSTEM
RESIDENTIAL AIR-CONDITIONERS
(Split system, air to air heat pump type)
(OUTDOOR UNIT)
SCM71ZS-W
80ZS-W
(INDOOR UNIT)
Wall mounted type
SRK20ZSX-W,-WB,-WT
Duct connected-Low/Middle static pressure type
FDUM50VH
SRK71ZR-W
25ZSX-W,-WB,-WT
35ZSX-W,-WB,-WT
50ZSX-W,-WB,-WT
60ZSX-W,-WB,-WT
SRK20ZS-W,-WB,-WT
25ZS-W,-WB,-WT
35ZS-W,-WB,-WT
50ZS-W,-WB,-WT
4-way ceiling cassette type
FDTC25VH
35VH
50VH
60VH
Ceiling concealed type
SRR25ZM-W
35ZM-W
50ZS-W
60ZS-W
Ceiling suspended type
FDE50VH

Mitsubishi Heavy Industries FDUM50VH Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDUM50VH
Category	Air Conditioner
Language	English

Summary

1. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER

1.1 SRK and SRR series

Details microcomputer operation control for SRK and SRR series air conditioners, covering remote control functions.

1.2 FDTC, FDUM and FDE series

Explains microcomputer operation control for FDTC, FDUM, and FDE series, including wired and indoor controls.

2. MAINTENANCE DATA

2.1 SRK and SRR series

Covers maintenance data, troubleshooting procedures, self-diagnosis, and inspection methods for SRK and SRR series.

2.2 FDTC, FDUM and FDE series

Outlines diagnosis of microcomputer circuits, troubleshooting, and error codes for FDTC, FDUM, and FDE series.

3. ELECTRICAL WIRING

(1) Outdoor unit

Provides electrical wiring diagrams for the outdoor unit, detailing component connections and specifications.

4. PIPING SYSTEM

(1) Outdoor unit

Illustrates piping system diagrams for outdoor units, showing refrigerant lines and component specifications.