Midea MDV-D Series User Manual

Main control board
Red Red Red Red Red Red
Red
Red
Red
Black
White
Blue
Blue
Green
Yellow
Brown
Green
Yellow
Brown
Blue
Red
Red
White
White
Black
Red
Yellow
Yellow
Red
Black
Blue
Blue
Black
Black Black
Blue
Blue
Blue Blue
Blue
Blue
Red
White
Red
Red
White
White
Blue
Blue
Blue
Blue
Blue
Black
Black
Black
Black
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Blue
Black
Red
White
Brown
Yellow
Green
Green
Yellow
Red
Black
White
Red
White
Blue
Blue
Black
Black Black
Yellow/green Yellow/green
White
Blue
Brown
Red
White
Red
Blue
Red
Black
Blue
Red
White
Red
Red
Red
Red
Red
Red
Black
White
Blue
Black
Yellow/green
Yellow/green
White
Blue
Yellow
Grey
Orange
Black
Black
Green
SW1 capacity setting (unchangeable)
Main unit
Auxiliary unit1
Auxiliary unit2 Auxiliary unit3
3-phase power supply
To outdoor COMM.
To indoor COMM.
(Load patch board)
CODE
Digital compressor Fixed compressor Capacitor, fan Main 4-way valve Relay Contactor Terminal Low-pressure switch Hi-pressue switch Electronic expansion valve Middle terminal Middle terminal Pipe temp sensor Outdoor temp sensor Current inductor Solenoid valve
DSP1
Outdoor unit COMM error Phase protection COMM error with indoor unit T3 pipe temp sensor errror T4 outdoor temp sensor error Discharge temp sensor error, digital compressor Outdoor unit address error
Chip COMM error Qty of outdoor unit decreases Qty of outdoor unit increases Hi-pressure protection Low-pressure protection Over-current protection, digital compressor Compressor overhigh discharge temp protection Outdoor condenser hi temp protection Current protection, No.1 fixed compressor
Current protection, No.2 fixed compressor
Fan
Auxil. 4-way valve
Discharge temp sensor, digital compressor Discharge temp sensor, fixed compressor Power transformer Crankcase heating PWM unloading valve
COOL HEAT
or
AUTO (Default)
Mode setting
Black
Black
(Reserved)
Mode conflict
Yellow/green
Blue
White
Red
Red
Red
White
Blue
Black
Outdoor unit
wiring nameplate
Capacity setting
Address setting
NAME

Midea MDV-D Series Specifications

General

Brand	Midea
Model	MDV-D Series
Category	Air Conditioner
Language	English