Common Questions: What boilers use the 560-528-989 orifice

Maintaining the correct exhaust temperature limit is essential for preventing element failure and ensuring compliance with safety standards

depending on the specific appliance BTU rating

What size tubing is required for the pneumatic connection

White-Rodgers 90-290Q Relay Common Questions: What boilers useThe 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