For HVACR professionals managing process cooling or water treatment systems

015-inch parallel and 0

Short cycling or mid-cycle lockouts are also frequent indicators of a drifting set point

Tamper Resistance: Equipped with tamper-resistant bonnet screws to prevent unauthorized field adjustments to the set point

fluctuating water temperatures

Nordyne 661055R Orifice 321042-401 For HVACR professionals managing processThe Nordyne 661055R Orifice is a precision engineered #55 drill main burner orifice designed to maintain consistent manifold pressure and gas flow in high efficiency heating systems. As a veteran HVACR technician knows, precise gas metering is critical for achieving a clean blue flame and preventing incomplete combustion or sooting. This OEM main burner orifice serves as the direct replacement for the legacy part 661055, ensuring that gas velocity and