The use of lightweight

a deliberate safety design that requires a technician to inspect the heat exchanger and flue for obstructions or cracks before restoring system power

it should be used as a pilot duty device to trigger a larger contactor

ensuring long-term field reliability without the need for frequent recalibration

and pumps running without a hitch

Lennox 25W88 Plate-Corbel 320788-703 The use of lightweightThe Lennox 25W88 Plate Corbel is a critical structural component engineered for high performance HVAC equipment support. This genuine Lennox OEM part replaces legacy numbers such as LB 109745 and is designed specifically for integration within LGH060H, LGH036H, and LGH048H series packaged units, as well as KGA and ZGA Series models. As a veteran grade corbel plate, it ensures the precise alignment and stabilization of heavy internal assemblies,