Midea MGBT-F25W/DN1

MCAC-ATSM-2014-09 R410a tropical air-cooled scroll chiller unit 60Hz
Installation 145
4.5 Field wiring
Water pump wiring diagram reference, the control circuit of water pump AC contactor must be passed P1 and
P2 contacts of master unit.
Single water pump
Creepage
Switch
Water
pump
Contactor
Over charge
relay
220V 3N 60HZ
Contactor
winding
Over charge
relay
0# Main unit PCB
A B C N
220V 3N 60HZ
P1 P2
XT4
Two water pumps (one is reserved):
Creepage
Switch
Water
pump
Contactor
Over charge
relay
220V 3N 60HZ
Creepage
Switch
Water
pump
Contactor
Over charge
relay
220V 3N 60HZ
Contactor
winding
Over charge
relay
0# Main unit PCB
A B C N
220V 3N 60HZ
P1 P2
XT4
Over charge
relay
Contator
winding 1
Switch1
220V 3N 60Hz