20
This section is only for systems that require a
pump start relay. The controller does not provide
main power for a pump.
Pump Start Relay
wiring terminal is
located between “C”
and ”1” screw terminals.
NOTE: JUMPERS FOR
UNUSED STATIONS
To prevent pump or system damage when using
a pump start relay, use a jumper to connect all
unused stations to the last station with a run time.
Unused station(s) without a jumper could cause
pump or system damage should the unused
station be turned on. Pump operation with no
flow (dead-head), could cause over-pressurization
of the system or the pump to overheat.
All electrical connections and wiring must
be made according to local building codes.
1. Open the cabinet door.
2. Connect the two
rain sensor wires
to the two terminals
marked SENSOR
located at #3 and
#4 screw terminals.
NOTE: If a rain sensor has not been installed
in the Pro-LC, the preinstalled jumper wire
must remain installed on the SENSOR terminals.
PUMP START RELAY
RAIN SENSOR INSTALLATION
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