Ranco o16-624 Low Pressure Thermostat 12-80 psi

Low-Pressure Thermostat for HVAC Systems

The Ranco o16-624 is a single pressure control designed for low-pressure monitoring in HVAC applications. It operates across a pressure range of 12 in Hg to 80 psi with an adjustable differential between 5 psi and 38 psi. The switch features SPST contacts that open on pressure fall and reset automatically. A 1/4 inch female flare connection provides the pressure inlet.

Suited for Automatic Reset Protection

This control suits technicians maintaining refrigeration or air conditioning equipment requiring low-pressure cut-out with automatic restart. The NEMA 1 rating limits use to indoor, dry locations. Installers needing a manual reset for safety lockout or a control rated for outdoor enclosures should look at alternative devices.

Pressure Range 12 in Hg to 80 psi

The operating window of 12 in Hg minimum to 80 psi maximum determines compatibility with the specific refrigerant and system design. Verify the system's normal operating pressures and desired cut-out points fall within these limits before installation. The control supports 24V, 120V, 240V, and 277-600V AC circuits.