The HH680614 is extensively used across the UTC family of brands

Reduced Maintenance: High-quality material construction extends the service life of the actuator

including the VR8200

Commonly used in Trane replacement parts for consistent cfm performance

Johnson Controls T-4003-203 Thermostat Refrigerant The HH680614 is extensively usedThe Johnson Controls T 4003 203 is a high volume output submaster pneumatic thermostat engineered for precise proportional control in complex HVAC systems. Designed for reverse acting operation, this unit utilizes horizontal mounting and is specifically calibrated for applications where a remote master controller resets the setpoint based on external variables like outdoor air temperature. With a massive 400 SCIM flow capacity and a low 20 SCIM air