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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Look for a "hunting" or kicking sound during startup
or the water heater failing to exit the pre-purge cycle due to insufficient pressure switch closure
Robust Construction: Designed for high-cycle commercial environments requiring 24VAC control circuits
If your assembly requires a snap-in connection
Lennox 45H03 Relay 320819-301 Look for a "hunting" orThe Lennox 45H03 is a heavy duty DPDT (Double Pole Double Throw) relay manufactured by Deltrol Controls, specifically designed for high amperage HVACR switching applications. This 275TM series relay operates on a 24VAC coil and is engineered to manage inductive loads in commercial air handlers, condensers, and refrigeration systems. Its robust contact design ensures reliable circuit isolation and motor starting capabilities, making it a direct OEM