How to Install a Pump Start Relay

Irrigation systems comprising of booster pumps to suck water directly from a lake or pond must include a pump start relay to activate the pump when desired. The pump start relays provide reliability when operators can not manually turn on the irrigation system. Manufacturers offer numerous pump start relay models suitable for various power sources to meet your landscaping needs. Installing pump start relays requires an adequate electrical background. Incompetent and improper attempts to install and connect electrical components could result in a void in warranty, even death if failing to execute proper safety measures.

Pump start relay assembly
Phillips screwdriver
Mounting screws
Permanent marker
Screw anchors
Wire splicers
Pliers

Instructions

- 1
  Turn off the main power to the irrigation system. Find an ideal location within 15 feet of the irrigation, sprinkler controller to mount the pump start relay. Open the pump start relay housing door and loosen the four mounting screws with a Phillips screwdriver. Remove the cover plate and mounting screws.
- 2
  Locate the cabinet guide post and thread one mounting screw into the wall. Align the pump start relay with the screw and place the cabinet's keyhole over the screw. Use a permanent marker to create reference point screw holes along the cabinet's bottom. Insert screw anchors at the marked reference points. Thread and tighten mounting screws to secure the cabinet.
- 3
  Orient the valve wires from the pump start relay into the irrigation, sprinkler controller. Strip 1/4-inch of plastic insulation from the wires with a pair of splicers. Bend the uncovered wire ends to the right with pliers. Connect one valve wire from the pump start relay to the master valve terminal. Connect remaining wire to the common terminal. Connect a jumper wire an unused station terminal to a control valve station to prevent pump damage.

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