Commercial Building Controls : Pneumatic Products : Pneumatic Relays : RP973 : RP973A1005/U
Output is the average of the two inputs. Pneumatic Three-Port Averaging Relay.
Overview
A three-port relay averages the signals from two thermostats to control a single device such as a heating coil valve for a multizone unit. Replacements available for Johnson, Powers, Robertshaw, Barber-Colman, and olderHoneywell models
Features
- In-line, wall or panel mounted.
- Sharp-barb air connections.
- Molded plastic construction.
Product Specifications
- Application
- Pneumatic Three-Port Averaging Relay
- Airflow Usage
- 0.007 scfm (3.303 mL/s) maximum
- Dimensions (in.)
- 1 1/2 in. high x 7/8 in. wide x 15/16 in. deep
- Dimensions (mm)
- 38 mm high x 22 mm wide x 24 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
- Pressure Range (psi)
- Input Operating--3 to 15 psi; Output Operating --3 to 15 psi
- Pressure Range (kPa)
- Input Operating--21 to 103 kPa; Output Operating --21 to 103 kPa
- Air connections
- Barb fittings 5/32 in. (4 mm) O.D. plastic tubing
- Capacity
- 0.039 scfm at 1 psi differential (18 mL/s at 5 kPa differential)
- Operation
- Output pressure equals average of two input pressures
