the 100208478 manages the pre-purge and post-purge timing for the combustion blower

this is an automatic reset switch that will close the circuit once the system pressure rises back to 25 PSIG

You can use a multimeter to check for continuity across the harness

Normally Closed Safety: Provides a 2-way normally closed default state to prevent unintended fluid bypass during power loss

This model is a direct replacement for 8910DPA73V14 and DP3075A5016

Fireye 60-2471-1 Half Rack 323055-751 the 100208478 manages the pre-purgeFor industrial combustion professionals managing modular burner control environments, the Fireye 60 2471 1 Half Rack serves as the mission critical foundation for 25SU3 2000 and 25SU3 2100 flame safeguard amplifiers. This 19 inch format flame signal amplifier rack features an aperture opening of 42 HP (approximately 8. 4 inches), designed to house up to four microprocessor based burner control modules or a combination of three amplifiers and one 19MPS