The Copeland 971-0604-13 External Protector is a critical safety component designed for hermetic condensing units and industrial refrigeration systems

technicians can ensure optimal communication between the thermostat

ensuring stable hot water delivery for residential and light commercial applications

consistent pilot flame for reliable ignition

maintaining factory-spec manifold pressure and burner ignition cycles

Nordyne 632546R Pressure Switch 324846-701 The Copeland 971-0604-13 External ProtectorThe Nordyne 632546R Pressure Switch is an essential safety component engineered for precise airflow verification in residential and commercial gas furnaces and packaged HVAC units. This OEM Nordyne pressure switch utilizes a dual setting configuration with trip points of 1. 0 in WC (high) and 0. 6 in WC (low) to monitor the pressure differential created by the draft inducer motor. As a veteran grade furnace pressure switch replacement, it ensures the