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When performing a Robertshaw 705-401 installation
Operating with a 150mA control draw
protecting the indoor air stream from exhaust gases
For technicians specializing in HVAC repair
It is engineered for 208/230V single-phase applications and features a standard 48-frame diameter with thru-bolt mounting for a secure
Trane ORF0501 Orifice R-407C When performing a Robertshaw 705-401The Trane ORF0501 is a precision engineered #44 Standard Fire Orifice designed specifically for compatible Trane furnace models and gas heating systems. As a critical combustion component, this brass orifice regulates the essential fuel flow to the burner assembly, ensuring the correct gas to air mixture for stable ignition and consistent thermal output. Measuring approximately 5. 7 inches in length, this OEM replacement part provides the exact