How to Wire a Chiller Water Flow Switch
- 1). Go to the home's breaker box or fuse panel. Locate the breaker or fuse that is allocated to the kitchen, and turn it off. In the case of fuses, simply unscrew and remove the fuse. If you are unsure of which breaker controls power to the kitchen, turn off the main breaker to cut the power to the entire building. Turn off the water supply to the building by shutting off the main water valve.
- 2). Connect the water pipes to the flow switch. Use a hacksaw to remove a 4.5-inch section of the PVC water pipe, then fit the flow switch into the gap. Note that one side of the switch is identified as water in and the other side as water out. Make sure the switch is properly aligned and is sitting in a level position. Having the switch tilted will impede its operation. Use plumber's cement, or rubber cement, to seal the areas where the pipes enter and leave the switch.
- 3). Open the top of the water flow switch. Three screws mount the top cover to the base of the unit's housing. Remove these three screws, using a Phillips screwdriver, and lift the top away from the switch. Set the top and the three screws aside for safe keeping.
- 4). Connect the wiring to the open and closed terminals. You will notice two wires inside the water flow switch that have "quick connect" connection plugs on the end. You will also see two terminal plugs, with the top being identified as "Normally Open" and the bottom identified as "Normally Closed." Take the blue wire, and connect the plug to the terminal for "Normally Open." Connect the white wire to the "Normally Closed" terminal.
- 5). Attach the power conduit. The power supply of the unit is contained within a strip of electrical conduit tubing. One end contains a red wire, equipped with a "quick connect" plug. Attach this end to the conduit opening on the water flow switch by twisting the conduit into the threads on the opening.
- 6). Connect the power supply. Reach inside the power conduit, and grab the red wire. Route the wire over the top of the flow switch, and plug it into the "Power IN" terminal plug. This plug is situated directly across from the two terminals that are already wired.
- 7). Complete the process by turning on the water supply, then turning the electricity back on at the breaker box. Once both of these items are on, plug the power cord of the water flow meter into the nearest 110-volt power outlet.
