Per the installation manual, (pg. 50), states: "Do Not Wire 110 Volts To The Valve or Wall Switch." also, (pg. 7) "PRODUCT CODES B46NTR AND B46PTR ONLY : No external electricity (110 volts or 24 volts) is required for the gas system operation. However, it is required with the installation of an optional blower." https://hvacdirect.com/media/hvac/pdf/B46-Install.pdf