This relay is used to sense suction and/or discharge pressures across a coil or fan and control pneumatic damper actuators or valves piped downstream from this device. SPECIFICATIONS: --Air pressure: 15 psig - 30 psig maximum. --Connections: “lo†and “hi†ports - use 3/8" O.D. plastic tubing signal - use 1/4" O.D. plastic tubing. --Air use: .49 SCIM.
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