York S1-1PS0309 High Altitude Pressure Switch Kit

The York S1-1PS0309 High Altitude Pressure Switch Kit is a unique accessory used for controlling the high altitude pressure in HVAC systems. This is a simple pressure switch of the SPST type to guarantee the effective operation of the system in detecting pressure variations. It has a flow coefficient of 0.9”WC and is designed to operate at the efficiency and system pressure at high altitude thin air conditions. The S1-1PS0309 is designed to complement York heating and cooling units and specifically in areas where standard pressure switches may not work effectively due to low pressure that comes with low air density.