Carrier EF17BZ111 Reversing Valve 328140-751 The Johnson Controls P-3800-1 Reset

The Johnson Controls P-3800-1 Reset Volume Controller is a high-performance

preventing overheating while maximizing combustion efficiency through tightened thermal cycles

Designed specifically for Burnham and New Yorker boilers

specifically engineered for seamless integration with York pressure transducers such as the 025-29139-007 and 025-29139-004 models

The set point is adjusted by turning the internal calibration screw

Carrier EF17BZ111 Reversing Valve 328140-751 The Johnson Controls P-3800-1 ResetThe Carrier EF17BZ111 Reversing Valve is a critical 4 way solenoid actuated component designed specifically for R 410A heat pump systems. Engineered for high pressure cycles, this slide type reversing valve ensures seamless refrigerant flow reversal between heating and cooling modes. It features a 5 8" suction line and 1 2" discharge line ODF connections, providing a robust fit for residential and light commercial Carrier, Bryant, and Payne air