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this unit serves as a critical primary or secondary limit control for hot water heating systems and a secondary safety control for steam boilers
Always cross-reference the model and serial number of the air handler to ensure the programmed parameters match the original factory specifications
meaning the circuit will open and interrupt power to the load when the sensed temperature reaches the high-limit setpoint
Engineered as a direct replacement for VFD66AAA-1 and VFD66AAA-2 models
it maintains precise manifold pressure
Trerice BX91403-04SPB Thermometer R-407A this unit serves as aWhen you're outfitting a commercial mechanical room or a high demand process loop, you need a Trerice BX91403 04SPB industrial thermometer that stays legible and accurate under constant vibration. This 9 inch scale industrial thermometer is the gold standard for contractors, featuring a 0 to 160F temperature range and a blue organic spirit filled lens front tube for high visibility magnification. The adjustable angle connection uses a 1 1 4 18 UNEF 2A