Johnson Controls T-4002-9009 Pneumatic Thermostat Els PW 17895 also identified as the BFK-306S

also identified as the BFK-306S

With its Class H insulation

this manual stem kit allows for physical actuation of the valve during system evacuation

What are the symptoms of a failing furnace pressure switch

this switch is calibrated to a specific -0

Johnson Controls T-4002-9009 Pneumatic Thermostat Els PW 17895 also identified as the BFK-306SThe Johnson Controls T 4002 9009 Pneumatic Thermostat is a high volume output single temperature controller specifically designed for facility managers and HVAC technicians who require precise proportional control in commercial settings. Operating on a reverse acting sequence, this thermostat increases its branch line pressure as the ambient temperature decreases, making it ideal for managing heating and cooling applications through 2 pipe pneumatic