Since the generation 2 controller outputs 24vac a pump start relay is required when using a pump with the generation 2. This flexible easy to install pump start relay provides pilot duty operation for all electrically driven pump equipment.
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Munro pump start relay wiring diagram. If you like this video you may want to see. The munro smartbox reduced incoming amperage box accepts a low amperage startstop signal to provide all of the benefits of the standard smartbox including loss of prime and run dry protection even when signal amperage is reduced. Attach white neutral 110 v second hot 220 v to l1 on relay. Undersized wire can affect pump performance. This is commonly seen in 2 wire systems and with super economical irrigation controllers big box stores. A two pull motor with 60 cycle current will run an estimated 3600 rpm.
Wire relay to pump refer to wiring diagram on motor plate for proper voltage and wire placement. No need to wonder which relay to use the munro startbox has a 40 amp relay to work equally well with single phase 34 hp to 5 hp for use with controllers with a 36 amp signal or stronger. A pump start relay serves as a switch that activates 110 220vac power to the pump when the generation 2 smart sprinkler controllers master valve is enabled. Undersized wire can affect pump performance. Pump start relay wiring. Refer to specific wiring diagram located on inside cover of enclosure.
It will eventually wind down to a stop. A motor may start with low voltage but cannot maintain running at low voltage. Refer to nec wire cable chart for proper size of wire. This video describes how to test a pump start relay for an irrigation system that uses a pump to draw water from a lake or other large water supply. Additionally the munro smartbox provides personal protection. Wire relay to pump refer to wiring diagram on motor plate for proper voltage and wire placement.
The startbox pump start relay provides pilot duty operation for all types of electrically driven pump equipment with available coil voltages of 24 110 and 220. All external devices are powered at reduced 24 volts. For systems without a pump start relay also see pg. A great option for pump start and pump protection in one the munro smartbox includes a preset pressure sensor that alerts the control system of potential pump damage due to loss of prime or run dry. For systems with a pump start relay also see pg. Refer to nec wire cable chart for proper size of wire.
Step 3 wire sensors wire sensors to red blue leads in the smartbox secure with wire nuts.
Gallery of Munro Pump Start Relay Wiring Diagram
