and PFG series

the 63922 burner orifice provides the exact physical dimensions and sizing required for seamless integration with Reznor F-50 and F-75 models

meeting the original factory specifications for system safety and operational reliability in commercial and residential hydronic applications

technicians should typically calibrate the outlet pressure to 10

This is an auto-reset limit switch

Johnson Controls T-4000-3139 Plastic Cover and PFG seriesThe Johnson Controls T 4000 3139 is a professional grade horizontal pneumatic thermostat cover designed specifically for the T 4000 Series room thermostats. Engineered for demanding commercial environments, this white plastic cover provides a clean, uniform look for horizontal mounted controllers where a blank faceplate cover is required. As a genuine Johnson Controls replacement part, it ensures a precise fit for single or dual element sensing units