Software Setup
Pump Start Relay Operation per Zone
Summary
When a system requires the use of a booster pump or pulls water directly from a creek or
pond, it’s imperative to include a relay to activate the pump each and every time. A pump
start relay is a relay box that activates a pump every time a zone is activated from the
controller. Zone valves are the individual valves that operate a group of sprinklers or drip
emitters. Hydrawise controllers support 6- to 54-zone valves, depending on the model.
Typically, one zone valve is turned on at a time and controls the irrigation in a specific area
of your landscape. Whenever one of the irrigation zone valves is told to open by the
controller, the controller also signals the pump start relay to turn the pump on.
Operation Chart
Controller Model Set Master Valve Operation
HC ON or OFF by All Zones
PRO-HC ON or OFF by All Zones
X2 w/WAND WiFi Module ON or OFF by Zone or All Zones
HPC ON or OFF by Zone or All Zones
HCC ON or OFF by Zone or All Zones
Wiring (24 VAC)
Use a minimum distance of 15' (4.5 m) between the controller and the relay to dampen
electromagnetic noise. In addition to this recommendation, Hunter also recommends all
controllers be mounted 15' (4.5 m) away from pumps and high-voltage devices.
1. Detach the pump start relay cover plate by removing the four screws with a
Phillips screwdriver.
2. Run a single wire from the "common" terminal on the controller to one of the yellow
wires on the pump start relay.
3. Run a single wire from the "P/MV" terminal on the controller to the other yellow wire on
the pump start relay.
4. Use wire nuts to make the connections and verify they are secure.
5. Install pump start relay cover plate and four screws. Close and lock the cabinet door.
6. Route wire through the conduit or one of the openings on the bottom of the cabinet.
