What size tubing is required for the pneumatic connection

and unit heaters

This bushing is typcially used for standard round cords found on 1/3 HP and 1/2 HP residential sump pumps

Repeated tripping of the rollout limit switch usually indicates a heat exchanger failure

ensuring no modifications are required during installation

White-Rodgers 90-290Q Relay What size tubing is requiredThe White Rodgers 90 290Q Relay is a heavy duty, 24V single pole normally open (SPNO) switching solution designed for high reliability in HVACR control circuits. As a veteran preferred fan relay, this unit features a Type 84 enclosed design, making it an ideal choice for managing single or two speed fan motors, solenoids, and resistive loads. With a contact rating of 8 Amps inductive and 16 Amps resistive at 125 250 VAC, the 90 290Q provides