this board replaces legacy part numbers RLY20062K

How do I test the switching logic during commissioning

checking the burner flame status at this sensor is your first step

transformer

the kit provides the necessary plunger

Conbraco 20-104-00 Gauge 323080-701 this board replaces legacy partThe Conbraco 20 104 00 Gauge is an industry standard liquid level sight gauge designed for reliable fluid verification in commercial and industrial boiler systems. Engineered with a rough bronze body for superior corrosion resistance, this water gauge set features 1 2" NPT male connections that ensure a secure, leak free integration into existing steam and hydronic headers. The assembly includes a 5 8" OD x 12" length standard glass tube, providing