Conbraco 10-618-10 Valve 30067439-890 Which Reznor models use the

Which Reznor models use the 68266 air proving switch

or safety interlocks simultaneously with the primary load

My blower is making a loud thumping noise

Engineered with an open-grid design

but the technical specifications and 2-7# compression rate are identical

Conbraco 10-618-10 Valve 30067439-890 Which Reznor models use theThe Conbraco 10 618 10 is a heavy duty, ASME Section IV certified pressure relief valve engineered for high capacity hot water heating boilers and large scale hydronic systems. This bronze safety relief valve features a 2" Female NPT inlet and an expanded 2 1 2" Female NPT outlet to facilitate superior discharge capacity, rated at 8,900,000 BTU hr. Specifically factory set at 50 PSI, the 10 618 10 ensures critical overpressure protection for