Fenwal 35-665576-111 Ignition Module 326058-757 ensure the flange bolts are

ensure the flange bolts are tightened in a secondary pattern to approximately 300 lb-in (34 Nm) to ensure a leak-free seal on the gaskets

ensuring the pilot can respond rapidly to downstream load changes

2-way normally open solenoid valve designed for reliable fluid control in demanding industrial environments

By enclosing the fan wheel and motor

preventing ignition failures and potential damage to the ignition module

Fenwal 35-665576-111 Ignition Module 326058-757 ensure the flange bolts areThe 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,