Fireye UV7A4W Scanner 322027-701 providing a multipurpose solution for

providing a multipurpose solution for various fluid types

Enhanced System Safety: Actively prevents heat exchanger damage by interrupting the gas valve circuit if airflow parameters deviate from safe operating limits

As a normally closed SPST disc-style switch

Is the 371-04479-001 compatible with my older York VSD

Fireye UV7A4W Scanner 322027-701 providing a multipurpose solution forThe Fireye UV7A4W Flame Scanner is a high sensitivity ultraviolet sensor engineered for industrial combustion flame safety in gas and oil burners. Designed specifically for systems that cycle on and off frequently, this Fireye UV scanner utilizes a gas filled quartz UV tube to detect radiation in the 185 to 245 nanometer range. This NEMA 4 flame sensor features a rugged construction with a 1 2" NPT insulated nylon coupling and a 4 foot shielded