Hunter Pro-C Controller Product Information page 17

NOTE: Complete this section only if you have
a pump and pump start relay installed. A pump
start relay is an electronic device that uses a
signal current from the irrigation controller to
activate a pump to provide water to your system.
Connecting a Pump Start Relay
The controller should be mounted at least
15 feet (4.5 m) away from both the pump start
relay and the pump. When a pump is to be
operated by the controller, a pump start relay
must be used. Hunter offers a full range a
pump start relays for most applications.
1. Route a wire pair from the pump relay into
the controller housing.
2. Connect a common wire to the terminal slot
C (Common) and the remaining wire from
the pump relay to the P/MV screw slot.
Relay holding current
draw must not exceed
.28 amps. Do not connect
the controller directly to
the pump—damage to
controller will result.
Connecting a Weather
Sensor (Not Included)
A Hunter Mini-Clik
®
rain sensor or other type of micro-switch
weather sensor may be connected to the Pro-C.
The purpose of this sensor is to stop watering
when precipitation is sufficient. The sensor
connects directly to the controller and allows
you to easily override the sensor by using the
Rain Sensor bypass switch on the controller.
Mini-Clik
®
Weather Sensor
Pro-C Controller
1. Route the wires from the rain sensor up
through the same conduit used for valve
wiring.
2. Remove the jumper from the two SEN
terminals.
3. Connect one wire to the SEN terminal and
one to the other SEN terminal on the power
module.
Sensor Wire to SEN
Sensor Wire to SEN
NOTE: If the rain sensor switch is left in the
ACTIVE position and no sensor is connected
and the jumper has been removed, the display
will read SEN OFF and no irrigation will occur.
To eliminate this problem when no sensor is
connected, leave the switch in the BYPASS
position or install a short jumper wire between
the sensor terminals.
PSR Series
Pump Start Relay
15' Minimum (4.5 m)
High Voltage in to Relay
Master Valve Wire
Common Wire
To Pump
15