Mitsubishi Electric City Multi PWFY-P100VM-E-BU Data Book page 65

15. INSTALLATION
In a system that includes PWFY-EP100VM-E1-AU, if the operation of the pump is interlocked with the operation of the air
conditioning units AND if the Solenoid valve kit (PAC-SV01PW-E) is connected to the system, connect the wires as shown
in [Fig. 3-1-G]. Set Dip SW3-6 to ON, and make sure that the version of the software is 1.18 or later. (PWFY-EP100VM-
E2-AU do not need a solenoid valve kit because they are built in with the same functions.)
[Fig. 3-1-G]
52P
1
F: Fuze
52P: Magnetic contactor for heat source water pump
MCB: Circuit breaker
WP: Water pump
Anti freeze mode (Dip SW4-4 ON)
Anti freeze mode is to prevent water pipe from freezing.The Anti freeze mode can set the heating temperature range be-
tween 10ºC~45ºC enabling the unit to maintain low water temperature to prevent water pipes from freezing.
MEES19K013
Board
TB141A OUT1
L
F
AC220V ~ 240V
L
2 3
TB1
N
PWFY
Solenoid
N valve kit
TB2
AIR TO WATER
AC220V ~ 240V
or
DC30V or less
L N
MCB
52P
WP
64