Johnson Controls VG7841ET Valve 318172-701 As the primary furnace control

As the primary furnace control board for high-efficiency models like the Reznor UDAP

This specific model features a 1/4" compression coupling pilot tap positioned on the left side and is configured without an integrated pilot adjustment valve

The AL-151 is functionally identical to the AL-151-0-0-1

Heavy-Duty Construction: Features a rugged base plate for secure mounting and long-term vibration resistance

providing professional contractors with a dependable solution for gas pressure monitoring and control

Johnson Controls VG7841ET Valve 318172-701 As the primary furnace controlThe Johnson Controls VG7841ET is a commercial grade 3 way mixing globe valve designed for precise flow control in chilled or hot water systems. Featuring a 1 2 inch NPT connection and a 1. 8 Cv rating, this valve utilizes an equal percentage flow characteristic to maintain stable room temperatures and optimize heat exchanger performance. The cast bronze body and brass trim provide the structural integrity required for high pressure HVAC applications,