Federal Register - December 20, 2021
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Source: Federal Register
72144
Federal Register / Vol. 86, No. 241 / Monday, December 20, 2021 / Proposed Rules
C. Calculating the circulator energy rating.
Determine the CER of each tested circulator pump using the following equation:
CER =
L w/Pin,D
i
C. Calculating the circulator energy rating.
Determine the CER of each tested circulator pump using the following equation:
CER
=
L w/Pin,i i
Where:
CER = circulator energy rating hp;
wi = 0.25;
Pin,i = driver power input at each test point i hp; and i = test points corresponding to 25, 50, 75, and 100 percent of BEP flow.
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Where:
CER = circulator energy rating hp;
wi = weight of 0.05, 0.40, 0.40, and 0.15 at test points of 25, 50, 75, and 100 percent of BEP flow, respectively;
Pin,i = driver power input at each test point i hp; and i = test points corresponding to 25, 50, 75, and 100 percent of BEP flow.
VI. Testing and Calculation of CER for Circulator Pumps Without External Input Signal, Manual, Pressure, or Temperature Controls Full Speed Test A. Scope.
A.1 This section VI applies only to circulator pumps sold without external input signal, manual, pressure, or temperature controls, or to any conduct of a full speed test.
B. Determination of circulator pump driver power input. At maximum speed of rotation, determine the driver power input at 25, 50, 75, and 100 percent of the measured BEP
flow rate as determined according to section I.E.2 of this appendix of the tested circulator pump in accordance with Appendix E of HI
40.62021.
