Fenwal 35-665576-111 Ignition Module 321702-401 Safety-First Design: Redundant solenoid coils

Safety-First Design: Redundant solenoid coils provide an extra layer of protection by ensuring positive shut-off if power is lost

Can I shorten the capillary tube if it is too long

The assembly is designed to facilitate the consistent updraft of combustion gases

Can the Resideo ZD20X24TZ be installed in any orientation

By keeping the sump warm

Fenwal 35-665576-111 Ignition Module 321702-401 Safety-First Design: Redundant solenoid coilsThe Fenwal 35 665576 111 is a microprocessor based 120V HSI Control engineered for high reliability performance in residential furnaces, hydronic boilers, and commercial water heaters. This hot surface ignition module features a 20 second heat up time and a 4 second trial for ignition (TFI) period, ensuring precise sequencing for gas fired heating equipment. As an OEM grade replacement, it provides robust flame sensing using Detect A Flame technology,