Description
Trane SWT3221 Pressure switch Refrigerant What is the difference between What is the difference between SPST and SPDT aquastats in this application If the blower is running and static pressure is sufficient but the contacts remain open
Trane SWT3221 Pressure switch Refrigerant What is the difference between What is the difference between SPST and SPDT aquastats in this application If the blower is running and static pressure is sufficient but the contacts remain open