Common Questions Do I need to prime this siphon before operation

When you're outfitting hearth products or high-end residential range tops

standard OEM sheave replacements include the necessary set screw for locking onto the shaft keyway to ensure static positioning during operation

Using this on a 7000 or 7100 series valve will result in improper pressure regulation

Johnson Controls T-4002-9009 Pneumatic Thermostat Els PW 17895 Common Questions Do I needThe 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