The Munro Pressure Start Control Box is used to start a pump in response to system demand, without the need for a signal from an external device like an irrigation controller.
Any drop in the line pressure is detected by a pressure switch which activates the pump. When the system pressure rebuilds and is high enough to cut-out the pressure switch, a flow switch takes over monitoring the system. If flow is present, the pump will continue to run. When flow stops, a time delay is activated to reduce short-cycling of the pump. After the delay times out, the pump shuts down.
If a line leak drops the pressure low enough, the pump will come on for the amount of time set on the time delay; and then shut off. To ensure the pump doesn’t short-cycle, the time delay is set to approximately 1 minute.
FEATURES AND BENEFITS
- Start and stop up to a 2HP pump
- Connect the pressure and flow switch to any pump discharge and the Pressure Start Control
- Box will turn the pump on and off
- Low pressure and dead-head protection
- Does not require a pressure tank
- Low 24 volts to external switches
CONSTRUCTION
- UL-50 Type 3R listed enclosure – available in stainless steel or powder coated blue*
- UL listed components
- Quick-connect terminals
- Pump and fittings not included
OPTIONS
- Pressure Start Control Box for larger HP motors available
- Higher pressure switches available
- Constant pressure available at 50 PSI downstream with various system flow rates
- Choose from 110 volt model or 220 volt model
NOTE: A water tight system is required. Air leaks in the system will cause pump to short cycle.
