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while the MOP 667 PSI (Maximum Operating Pressure) charge protects against excessive evaporating pressure during startup and high-load cycles
which can lead to unstable flames
consistent with standard Nordyne N-Series condensing unit configurations
Key Benefits for HVAC Professionals OEM Precision: Guaranteed compatibility with ICP Heil Quaker equipment
Utica-Dunkirk S47 Limit Switch 320074-702 while the MOP 667 PSIWhen you're out in the field and a homeowners boiler is cycling on high limit or failing to fire, the Utica Dunkirk S47 Limit Switch is the OEM replacement part you need to restore safe, reliable operation. This high limit safety control is a critical safeguard in hydronic systems, engineered to interrupt the burner circuit if water temperatures exceed safe operating parameters. As a precision calibrated HVAC safety switch, it features a 200F open
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