Pneumatic Selector Relay, used in lockout, repeater and lower of two input pressure applications

Three-port relays used in HVAC systems to perform a variety of relay functions; transmit the higher of two input signals, lock out one pressure signal when a second signal is higher, or transmit the lower of two pressure signals. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.

Features

• Uses diaphragm-logic technology.
• In-line, wall, or panel mounted.
• Sharp-barb air connections.
• Molded plastic construction.

Specifications

• Type: Pneumatic Three-port Selector Relay
• Operation: Lockout, Lower-of-two pressures, repeater relay
• Capacity: 0.039 scfm at 1 psi differential (18 mL/s at 5 kPa differential)
• Air Connections: Barb fittings 5/32 in. (4 mm) O.D. plastic tubing
• Maximum Safe Operating Pressure (psi): 30 psi
• Mounting: Wall or In-line or panel
• Operating Humidity Range: 5 to 95% RH
• Dimensions: 1-1/2 in. diameter x 1 in. deep
• Temperature Range: 0 F to 140 F
• Includes: 14003030-001, 1 1/2 in. Mounting Clip for Mounting relay to wall or panel
• Input Operating Pressure (psi): 0 to 20 psi