Coefficient of Performance (COP) of federally regulated consumer products

means the ratio of the average rate of space heating delivered to the average rate of electrical energy consumed by the heat pump. Determine rate quantities from a single test or, if derived via interpolation, determine at a single set of operating conditions. COP is a dimensionless quantity. When determined for a ducted coil-only system, COP must be calculated using the default values for heat output and power input of a fan motor specified in sections 3.7 and 3.9.1 of 10 C.F.R. section 430.23(m) (Appendix M to subpart B of part 430).