This OEM York furnace pressure switch features a Single Pole Normally Open (SPNO) configuration and is factory-calibrated to a -

If the original 621773R motor has seized or is showing high amperage

and a 3-blade design

5" x 4" mounting footprint fits most standard fractional horsepower compressor brackets

Johnson Controls T-3111-6 Pneumatic Thermostat Els PW 29614 This OEM York furnace pressureThe Johnson Controls T 3111 6 Pneumatic Thermostat is a heavy duty, direct acting controller engineered for proportional management of steam or water valves in terminal air conditioning units. As a veteran preferred valve top mounting thermostat, this unit integrates a high sensitivity averaging bulb element (8 foot sensing area) to ensure precise environmental regulation by mitigating the effects of air stratification. Designed for "single