D/H-12 Carwash Controller 15 Amp 77715
New DH-12 carwash controller, equivalent to the Dilling-Harris D/H-12 , P/N 77715. Design has been updated to heavier-duty diodes.
This controller accepts a +24V AC or DC signal on the left side terminal strips, with the common on the right side terminal strip. Any one or more +24V inputs will turn on the internal relay to power a 110VAC motor, pump, light, or other device. Rated for devices up to 15 Amps.
Typical application is for a bay carwash controller. The carwash +24V solenoids which actuate selections such as soap, wax, etc. are hooked parallel with this controller. If any solenoid is activated, the relay inside this unit turns on, activating a motor, pump, or other device.