boba
05-09-2011, 08:08 PM
i have just been given a cooling system that is governed by a ranco 868g controller.
i have run the system into a walkin cooler that i have made and the system is working just fine but i have not been able or don't know how to adjust the controller to shut off the condenser? I left the system funning all night and the cooler started to freeze a jug of water that i left in the cooler. The system was charged with R134A. the indicator on the left indicates 18 psi the one on the right indicates 36 psi and the diff pressure is at 15 psi all when running???? Which screw do i have to make adjustments to???
i have run the system into a walkin cooler that i have made and the system is working just fine but i have not been able or don't know how to adjust the controller to shut off the condenser? I left the system funning all night and the cooler started to freeze a jug of water that i left in the cooler. The system was charged with R134A. the indicator on the left indicates 18 psi the one on the right indicates 36 psi and the diff pressure is at 15 psi all when running???? Which screw do i have to make adjustments to???