The Trane CNT2237 Defrost Controller is a high-precision OEM electronic board engineered for demand-based defrost management in specialized Trane heat pump systems

utilizing a positive temperature coefficient that ensures a consistent 0

System Safety Integration: Incorporates an integrated high limit control to monitor water temperature and prevent overheating conditions

Effective Air Venting: Rapidly removes air from the system to prevent cold spots and improve heat-up times

Setra 2301100PD2F11B Pressure Transmitter Freon The Trane CNT2237 Defrost ControllerThe Setra 2301100PD2F11B Pressure Transmitter is a high accuracy wet to wet differential pressure transducer engineered for demanding HVACR and industrial process control. With a 0 to 100 PSID unidirectional pressure range and a standard 4 20 mA output, this unit provides precise monitoring of liquid and gas media in hydronic systems. The rugged construction utilizes 17 4 stainless steel wetted parts and Viton bleed screw seals to ensure chemical