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the 100108826 air pressure switch features a high-sensitivity diaphragm that reacts to minute pressure differentials
this solid-state module interfaces directly with the compressor's internal thermistor sensors to trigger a safety shutdown in the event of unsafe operating conditions
It is engineered for the Lochinvar EnergyRite (ER) series
With a 440V rating
Trane MOD2070 Module 321894-708 the 100108826 air pressure switchFor service calls involving intermittent blower failure or erratic staging, the Trane MOD2070 ECM Engine Control Module is the required OEM replacement HVAC control solution to restore sequence of operation. This electronically commutated motor driver functions as the "brain" for high efficiency blowers, managing variable speed operation by precisely regulating engine speed, fuel injection, and ignition timing. In industrial and commercial rooftop