Enviro-tec PC-05-0030 Reversing Relay for VAV Terminal Units

The Enviro-tec PC-05-0030 is a pneumatic reversing relay designed for use in commercial HVAC Variable Air Volume (VAV) systems. This control component is essential for coordinating the operation of VAV terminal units with different actuator configurations and thermostat types.

Key Features:

• Reverses pneumatic control signals to accommodate different actuator actions
• Allows reverse acting thermostats to work with direct acting VAV controllers
• Typically features one input, one output, and main air connection
• Enables proper coordination between VAV dampers and reheat valves
• Compatible with Enviro-tec VAV terminal equipment

This reversing relay is commonly used in applications where a reverse acting thermostat needs to control both a normally open VAV damper and a normally closed reheat valve, or other combinations where signal reversal is required. The relay ensures that control signals are properly inverted to match the operating characteristics of connected devices, maintaining proper heating and cooling operation in zone control systems.