this retainer supports the necessary tension for accurate pneumatic valve actuator positioning

communicating directly with the integrated furnace control board to confirm burner ignition

For high-pressure steam applications exceeding this threshold

When failures in the heating cycle occur

White-Rodgers 90-372 Relay this retainer supports the necessaryThe White Rodgers 90 372 Relay is a specialized 120V SPDT heavy duty enclosed relay designed for high demand HVAC switching and power control applications. As a core component of the Type 184 series, this line voltage relay features a 120 VAC coil and is rated for a 18A resistive load at 277 VAC, making it an ideal choice for fan motor control and general purpose pilot duty. Its compact, totally enclosed design protects internal silver alloy contacts