Johnson Controls T-4002-204 Pneumatic Thermostat Els PW 17895 This HVAC control module is

This HVAC control module is engineered to monitor 24V AC signals and environmental conditions

you only need a straightedge for parallel alignment and a set of calipers for angular alignment

Automatic Reset Logic: Eliminates the need for manual intervention after a temporary overheat event

Can I use high-temp silicone to patch a leak instead

check the terminals while the system is at rest

Johnson Controls T-4002-204 Pneumatic Thermostat Els PW 17895 This HVAC control module isThe Johnson Controls T 4002 204 is a professional grade, high volume output pneumatic thermostat engineered for precise temperature regulation in demanding commercial and industrial environments. This reverse acting pneumatic thermostat is designed specifically for vertical mount orientations, providing a proportional output signal to modulate pneumatic valves and damper actuators. It operates within a standard 55 85F dial range, utilizing a single