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. These rate quantities must be determined from a single test or, if derived via interpolation, must be determined at a single set of operating conditions. COP is a dimensionless quantity. When determined for a ducted coil-only system, COP must include sections 3.7 and 3.9.1 of 10 C.F.R. section 430.23(m) (Appendix M to subpart B of part 430): default values for the heat output and power input of a fan motor.