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The Allanson 2721-668 Ignition Transformer is a heavy-duty
This switch is typically used as a high-limit safety device to monitor air pressure in supply ducts or burner compartments
Using it in a 230V circuit will cause immediate failure of the internal element
Verified OEM Compatibility: Specifically indexed for Williams Forsaire series
High-Temperature Durability: Features a Class F rating
Sterling HVAC 11261R06045 Conversion Kit 30067439-890 The Allanson 2721-668 Ignition TransformerThe Sterling HVAC 11261R06045 Conversion Kit is a field proven solution for transitioning natural gas to liquid propane (LP) on standing pilot equipment. This OEM gas conversion kit is engineered for a broad range of Sterling unit heaters, specifically the QV, QVS, QVB, QVD, and QVF series ranging from 100 to 250 MBH. As a specialized NG to LP conversion set, it includes high precision main burner orifices, a specific pilot burner orifice, and the
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