Engineered Airflow: The 3-blade design with 22-degree pitch maximizes CFM output in outdoor condenser sections

the unit closes its valves to shut off main air and prevent branch line bleed

Common Questions Regarding the Fireye M4RT1:

Can this sensor handle overpressure without damage

The unit includes an integral stainless steel strainer to protect internal components from sediment and debris

Siemens Building Technology QAC22 Sensor 340793-762 Engineered Airflow: The 3-blade designThe Siemens Building Technology QAC22 Sensor is a precision passive outdoor temperature sensor engineered for weather compensated control in high performance HVACR systems. Utilizing an LG Ni 1000 ohm sensing element (Ni RTD, 1k Ohm @ 32F), this unit provides a highly stable output signal across a wide operating range of 58 F to 158 F ( 50 C to 70 C). Designed for standard building automation systems, it accurately monitors outdoor air temperature