T1 = temperature at which the unit, operating at the maximum, delivers capacity equal to the building load (QT1) = BL(T1)), found by setting the equation for capacity QT,) equal to the equation for building load BL(T) from the two-speed procedure in section 5.2.2 and solving for temperature COP (T3)=the coefficient of performance at the minimum compressor speed at temperature T3 COPT1)=the coefficient of performance at the maximum compressor speed at temperature T4 Q(T3)=steady-state capacity at the speed at temperature T4, calculated using the equation for Q-2 (T,) of the two-speed procedure. Ek (T) the electrical power input at the minimum compressor speed at temperature T3, calculated by using the equation for Ek (T;) (where T, 40°F) from the two-speed procedure in section 5.2.2 of this Appendix Ek T1) the electrical power input at the maximum compressor speed at temperature T1, calculated by using the equation for EkT;) from the two-speed procedure in section 5.2.2 of this Appendix Outdoor dew-point, ° F: Entering. Leaving. External resistance to air-flow, inches of water.... Electrical voltage, percent.... 155 1.5 2.0 0.7 .02 'Test operating tolerance is the maximum permissible variation of any measurement. When expressed as a percentage, the maximum allowable variation is the specified percentage of the average value. Test Operating Tolerance During Heating applies when the heat pump is in the heating mode, except for the first 5 minutes after termination of a defrost cycle. Test Operating Tolerance During Defrost applies during a defrost cycle and during the first 5 minutes after the termination of a defrost cycle when the heat pump is operating in the heating mode. 2 Test condition tolerance is the maximum permissible variation of the average value of the measurement from the standard or desired test condition. Test Condition Tolerance applies only when the heat pump is operating in the heating mode. Not applicable during defrost if the indoor fan is off. 6.2.4 Distribution of fractional hours in temperature bins, heating load hours and outdoor design temperature for the different climatic regions. Test operating tolerance is the maximum permissible variation of any measurement. When expressed as a per |