Daikin 4MWXM52A2V1B User Manual

9 | Electrical installation
Installer reference guide
50
4MWXM-A
R32 Split series
4P678385-1A – 2022.02
DANGER: RISK OF ELECTROCUTION
Disconnect the power supply for more than 10minutes, and measure the voltage at
the terminals of main circuit capacitors or electrical components before servicing.
The voltage MUST be less than 50VDC before you can touch electrical components.
For the location of the terminals, see the wiring diagram.
MR30_A
S80
S70
DC-
FU2
AL1
DP2 DP1
AL2
S60
S
S50
MR30_B
S20
S21
S22
S23
S93
S92
S90
W
VU
S40
ACDC
DC
c
e
d
f
b
a
l
k
j
i
g
h
DC(-)
FU2
a AL1, AL2, DP1, DP2: solenoid valve lead wire connectors
b S: terminal strip lead wire connector
c S20~S22 (room A, B, C) + S23 (TO TANK): electronic expansion valve coil lead wire
connector,
d MR30_A, MR30_B - suspend lead wire connectors
e S40: thermal overload relay lead wire and high pressure switch connector
f Multimeter (DC voltage range)
g S90, S92, S93: thermistor lead wire connector
h S50: suspend lead wire connector
i S60: pressure sensor connector
j S70: fan motor lead wire connector
k S80: 4-way valve lead wire connector
l W, V, U: Compressor lead wire connector
9.1.2 Guidelines when connecting the electrical wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style terminal on the
end of the wire. Place the round crimp-style terminal on the wire up to the
covered part and fasten the terminal with the appropriate tool.
b a
a Stranded conductor wire
b Round crimp-style terminal
▪ Use the following methods for installing wires:

Daikin 4MWXM52A2V1B Specifications

General

Brand	Daikin
Model	4MWXM52A2V1B
Category	Air Conditioner
Language	English