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as the M520 does not include an integral high-fire regulator
you ensure the internal mechanical regulators align with the manufacturer's manifold pressure specifications
Dryseal Threads: Features long NPT threads to minimize the risk of leakage and simplify HVAC fitting installation
With a flow coefficient (Cv) of 83 and a modified linear flow characteristic
York S1-373-23068-004 Heat Exchanger 322838-753 as the M520 does notOptimize your repair calls with the York S1 373 23068 004, a precision engineered 4 tube aluminum heat exchanger designed for high efficiency thermal performance in commercial and residential York equipment. This OEM York replacement part is built to exact manufacturer specifications, ensuring seamless field integration and restoring the design specified AFUE rating of the furnace. The aluminum construction provides superior corrosion resistance and