Hello HVAC world and Happy 2019.
Per appliance-standards.org, furnace fans use electricity to circulate air heated by the furnace through a home’s duct system into the living space. For homes with central air conditioning, the furnace fan also serves to circulate air during the cooling season.
In 2014, the Department of Energy (DOE) established new protocol to phase out all PSC fan blower motors in 2019, to be replaced with at least X13 hi-efficiency fan blowers. This kicks in during the summer of 2019. What this means is all PSC motor furnaces and air handlers will be phased out.
Why is this being done? The new standards will reduce the energy consumption of furnace fans and improve residential home energy efficiency.
Craig Sopo 