Schneider Electric (Barber Colman) 2218-133 Summer-Winter Thermostat 16 PSI RA / 25 PSI DA

Schneider Electric (Barber Colman) 2218-133 Summer-Winter Thermostat operates as a pneumatic temperature control part that operates specifically for efficient HVAC systems seasonal operation. This part operates in direct acting mode at 16 PSI for summertime but switches to reverse acting mode at 25 PSI during the winter season. This thermostat features automatic control signal adaptations through seasonal settings which makes it suitable for air handling units fan coil units and VAV boxes. The exact pressure-sensitive operation achieves indoor comfort while improving energy efficiency and automatic heating system transition to deliver consistent temperature control year-round.