Overview
A three-port hesitation relay provides minimum outside air damper position plus controlled ventilation for large volume unit ventilators. Replacement devices are available for Johnson, Powers, and Barber-Colman devices.
Features
Manually adjustable minimum position. In-line, wall or panel mounted.Sharp-barb air connections.Molded plastic construction.
- Application : Pneumatic Three-Port Hesitation relay
- Airflow Usage : 0.022 scfm (10 mL/s)
- Dimensions (in.) : 2 1/4 in. high x 2 1/2 in. wide x 3 3/4 in. deep
- Dimensions (mm) : 57 mm high x 63 mm wide x 96 mm deep
- Maximum Safe Operating Pressure (psi) : 30 psi, maximum
- Maximum Safe Operating Pressure (kPa) : 205 kPa, maximum
- Temperature Range (F) : 32 F to 125 F
- Temperature Range (C) : 0 C to 52 C
- Mounting : Wall or In-line or panel
- Operating Humidity Range (% RH) : 5 to 95% RH
- Air connections : Barb fittings 5/32 in. (4 mm) O.D. plastic tubing
- Capacity : 0.003 scfm (1.65 mL/s)
- Operation : Provides minimum outside air damper position
