Replace this ballast-driven lamp annually to counteract natural UVC intensity degradation and ensure residential or light commercial systems remain within operational specifications

ensuring proper alignment with the drive shaft to eliminate binding and mechanical hysteresis

and guide pin assembly

allowing for precise low pressure range adjustments from 20" Wc to 100 psi and high pressure range settings from 100 psi to 425 psi

While it fits many standard brackets

Johnson Controls V-3966-1002 Valve R-410A Replace this ballast-driven lamp annuallyThe Johnson Controls V 3966 1002 is a heavy duty, two way brass pneumatic valve designed for high accuracy flow regulation in HVAC terminal units. Engineered for professionals handling fan coils and reheat coils, this 1 2" flare valve features a normally closed configuration to ensure system safety and efficiency during power or air signal loss. With a 3. 2 Cv flow coefficient and a precise 9 13 psi spring range, it provides stable throttling control