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

Precision Pilot Operation: Minimum pressure differential required for shifting is minimized to ensure reliable cycle changeover in low ambient conditions

the 622171 is the official 622171R replacement motor and shares identical technical specifications

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