User's Manual

11 LS420 Universal User Manual V2.91 2003-01-21.doc
Battery +12V
or +24V
Black
wire
Red wire
White wire
Diode
Valve
coil
Yellow c
a
ble
Wiring example with lockout for valve requiring less
than 0.75 Amp, without recommended Bosch Relay
Wiring example with lockout and recommended Bosch Relay
Battery +12V
or +24V
n.c.
n.o.
co
Black
wire
Red wire
White wire
Bosch relay
To valve coil if
n.c. is required.
To valve coil if
n.o. is required.
Yellow c
a
ble