The MAMAC Systems PR-274-R2-VDC is a high-precision low pressure sensor engineered for demanding HVAC duct static pressure monitoring and cleanroom applications

Featuring a rugged brass body and durable NBR seals (Buna-N)

Refer to the side-stamped wiring diagram

this suction line drier is an essential component during burnout cleanup procedures

Trane TRR1838 Transformer R-134A The MAMAC Systems PR-274-R2-VDC isThe Trane TRR1838 Transformer is a heavy duty 75VA control transformer engineered specifically for technical reliability in demanding HVACR environments. This OEM replacement part handles primary input voltages of 208 240V AC and steps it down to a stable 24V secondary output, providing the consistent current required for contactors, ignition modules, and advanced control boards. With its 75VA power rating, this unit offers significantly more overhead