The Wayne ESP 15 is a battery-powered 12-V backup sump pump intended to eliminate water from a basement sump if a power failure or other mishap renders the AC-powered main heat pump inoperable. This 9-pound pump, intended for light-duty surroundings, can eliminate 720 gallons per hour when lifting the water to a height of 10 feet. It depends upon a magnetic reed float switch to detect failure of the main sump pump.
Install an anti-backflow check valve in the point at which the key pump connects to the release pipe. Disconnect the pipe in the main pump’s discharge port, fit the test valve to the pump and discharge pipe, and fasten it in position with clamps, adhesive or other proper fastening. Omit this step if a check valve is currently present in the main pump’s discharge port.
Measure and cut the release pipe so that you may install a PVC pipe tee to that you’ll fit the backup heat pump. Pick a point on the discharge pipe which is going to have the backup pump’s consumption at least 1 inch above the main pump and the cap of the backup pump at least 4 inches beneath the lid of this sump. Mark the cutting stage and cut with a hacksaw. Test-fit the parts prior to making a permanent attachment. If everything fits, use PVC cement to glue your elbow into position.
Insert the flapper valve into the pipe tee so the flapper will swing upwards whenever the pump begins. Double-check to be certain the flapper moves freely. Slide a 1.5-inch pipe clamp onto the tee, then add the pump’s discharge port into the flapper valve. Tilt the pump 30 degrees, making sure the aspect of the pump with the power cord is uppermost. Tighten the pipe clamp with a screwdriver or wrench to ensure the pump to the elbow.
Install the float switch to your backup pump over the tee to your pump in a point on the discharge pipe in which it’ll activate the pump once the pump is under water. Secure the float switch to the release pipe with cable ties. Check to be sure the float switch moves freely and that electricity cords or other obstacles do not interfere with the switch activity. Extend the float switch’s cord to the battery box.
Attach the pump controller box to the side of the battery box with four screws. Put a charged, 12-V, deep-cycle battery at the box. Use wrenches to attach the red cable from the control box to the battery’s positive post and the black cable to the negative post. Set the battery box’s lid on and fasten it with the battery box strap. Place the battery box in a dry, well-ventilated place within 6 feet of the sump and within 6 feet of the AC outlet protected by a ground-fault circuit interrupter.
Plug the cords in the battery charger, float switch and then pump into the appropriately marked terminals on the controller box. With electricity to the main heat pump disconnected, fill the sump with water and then check the newly installed backup pump comes on to drain the sump. If the pump runs properly, plug the battery charger into the AC outlet to keep the backup pump’s battery charged.