As a critical HVAC terminal block

specifically engineered for LGB boiler models

while the pitch length is approximately 36

Ensure the VAL3824 sensing bulb has 100% contact with the suction line

It serves as the direct Johnson Controls AP23A000 replacement

Resideo V135A1063 Valve R-410A As a critical HVAC terminalThe Resideo V135A1063 is a professional grade 3 way mixing and diverting valve engineered for high demand hydronic heating systems. As a critical component for radiant heating control, this 1 1 4 inch sweat union valve provides precise loop temperature regulation by effectively mixing primary supply water with return water or diverting flow as system demands shift. Built with a heavy duty bronze body and stainless steel stem, the V135A1063 is designed