Armstrong International 15B4 Trap Els PW 17895 What does SPDT signify in

What does SPDT signify in this application

Engineered for reliability in extreme conditions

Installing a counter-clockwise wheel will significantly drop airflow and can overheat your motor

Key Benefits for the Contractor Universal Compatibility: Works with a broad range of Schneider Electric and Barber Colman electric room thermostats for easier inventory management

Durable Construction: Features a NEMA 1 general-purpose enclosure and dust-tight Pennswitch contacts for long-term reliability in mechanical rooms

Armstrong International 15B4 Trap Els PW 17895 What does SPDT signify inThe Armstrong International 15B4 Trap is a high performance Series B Cast Iron Float & Thermostatic Steam Trap engineered for heavy duty industrial and commercial heating applications. Designed with a 1" NPT Standard Connection and a 5 16" orifice, this unit excels in managing high condensate loads while maintaining a maximum operating pressure of 15 PSI. Featuring an integrated thermostatic air vent, the 15B4 ensures rapid air removal for quick