# 10 CFR § 429.59 - Pumps.

§ 429.59 Pumps.

(a)Determination of represented value. Manufacturers must determine the represented value, which includes the certified rating, for each basic model by testing (which includes the calculation-based methods in the test procedure), in conjunction with the following sampling provisions. Manufacturers must update represented values to account for any change in the applicable motor standards in § 431.25 of this chapter and certify amended values as of the next annual certification.

(1) Units to be tested. The requirements of § 429.11 are applicable to pumps; and for each basic model, a sample of sufficient size shall be randomly selected and tested to ensure that -

(i) Any value of the constant or variable load pump energy index or other measure of energy consumption must be greater than or equal to the higher of:

(A) The mean of the sample, where:

$\overline{x}=\frac{1}{n}\sum _{i=1}^{n}{x}_{i}$

and x

is the sample mean; n is the number of samples; and xi is the maximum of the i th sample;

Or,

(B) The upper 95 percent confidence limit (UCL) of the true mean divided by 1.05, where:

$\text{UCL}=\overline{x}+{t}_{0.95}\left(\frac{s}{\sqrt{n}}\right)$

and x

is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95 percent one-tailed confidence interval with n-1 degrees of freedom (from appendix A to subpart B of part 429);

and

(ii) Any representation of weighted energy factor of a basic model must be less than or equal to the lower of:

(A) The mean of the sample, where:

$\stackrel{–}{x}=\underset{i=1}{\overset{n}{\frac{1}{n}\phantom{\rule{.2em}{0ex}}\sum }}{x}_{i}$

And x

is the sample mean; n is the number of samples; and xi is the maximum of the ith sample; or,

(B) The lower 95 percent confidence limit (LCL) of the true mean divided by 0.95, where:

$LCL=\stackrel{–}{x}-{t}_{0.95}\left(\frac{s}{\sqrt{n}}\right)$

And x

is the sample mean; s is the sample standard deviation; n is the number of samples; and t0.95 is the t statistic for a 95 percent one-tailed confidence interval with n-1 degrees of freedom (from appendix A of this subpart).

(2)Other representations -

(i)Rated hydraulic horsepower. The representative value of rated hydraulic horsepower of a basic model of dedicated-purpose pool pump must be the mean of the rated hydraulic horsepower for each tested unit.

(ii)Dedicated-purpose pool pump motor total horsepower. The representative value of dedicated-purpose pool pump motor total horsepower of a basic model of dedicated-purpose pool pump must be the mean of the dedicated-purpose pool pump motor total horsepower for each tested unit.

(iii)True power factor (PFi). The representative value of true power factor at each load point i of a basic model of dedicated-purpose pool pump must be the mean of the true power factors at that load point for each tested unit of dedicated-purpose pool pump.

(b)Certification reports.

(1) The requirements of § 429.12 are applicable to pumps; and

(2) Pursuant to § 429.12(b)(13), a certification report must include the following public product-specific information:

(i) For a pump subject to the test methods prescribed in section III of appendix A to subpart Y of part 431 of this chapter: PEICL; pump total head in feet (ft.) at BEP and nominal speed; volume per unit time (flow rate) in gallons per minute (gpm) at BEP and nominal speed; the nominal speed of rotation in revolutions per minute (rpm); calculated driver power input at each load point i (Pini), corrected to nominal speed, in horsepower (hp); full impeller diameter in inches (in.); and for RSV and ST pumps, the number of stages tested.

(ii) For a pump subject to the test methods prescribed in section IV or V of appendix A to subpart Y of part 431 of this chapter: PEICL; pump total head in feet (ft.) at BEP and nominal speed; volume per unit time (flow rate) in gallons per minute (gpm) at BEP and nominal speed; the nominal speed of rotation in revolutions per minute (rpm); driver power input at each load point i (Pini), corrected to nominal speed, in horsepower (hp); full impeller diameter in inches (in.); whether the PEICL is calculated or tested; and for RSV and ST pumps, number of stages tested.

(iii) For a pump subject to the test methods prescribed in section VI or VII of appendix A to subpart Y of part 431 of this chapter: PEIVL; pump total head in feet (ft.) at BEP and nominal speed; volume per unit time (flow rate) in gallons per minute (gpm) at BEP and nominal speed; the nominal speed of rotation in revolutions per minute (rpm); driver power input (measured as the input power to the driver and controls) at each load point i (Pini), corrected to nominal speed, in horsepower (hp); full impeller diameter in inches (in.); whether the PEIVL is calculated or tested; and for RSV and ST pumps, the number of stages tested.

(iv) For a dedicated-purpose pool pump subject to the test methods prescribed in § 431.464(b) of this chapter: weighted energy factor (WEF) in kilogallons per kilowatt-hour (kgal/kWh); rated hydraulic horsepower in horsepower (hp); the speed configuration for which the pump is being rated (i.e., single-speed, two-speed, multi-speed, or variable-speed); true power factor at all applicable test procedure load points i (dimensionless), as specified in Table 1 of appendix B or C to subpart Y of part 431 of this chapter, as applicable; dedicated-purpose pool pump nominal motor horsepower in horsepower (hp); dedicated-purpose pool pump motor total horsepower in horsepower (hp); dedicated-purpose pool pump service factor (dimensionless); for self-priming pool filter pumps, non-self-priming pool filter pumps, and waterfall pumps: The maximum head (in feet) which is based on the mean of the units in the tested sample; a statement regarding whether freeze protection is shipped enabled or disabled; for dedicated-purpose pool pumps distributed in commerce with freeze protection controls enabled: The default dry-bulb air temperature setting (in °F), default run time setting (in minutes), and default motor speed (in rpm); for self-priming pool filter pumps a statement regarding whether the pump is certified with NSF/ANSI 50-2015 (incorporated by reference, see § 429.4) as self-priming; and, for self-priming pool filter pumps that are not certified with NSF/ANSI 50-2015 as self-priming: The vertical lift (in feet) and true priming time (in minutes) for the DPPP model.

(v) For integral cartridge-filter and sand-filter pool pumps, the maximum run-time (in hours) of the pool pump control with which the integral cartridge-filter or sand-filter pump is distributed in commerce.

(3) Pursuant to § 429.12(b)(13), a certification report may include the following public product-specific information:

(i) For a pump subject to the test methods prescribed in section III of appendix A to subpart Y of part 431 of this chapter: Pump efficiency at BEP in percent (%) and PERCL.

(ii) For a pump subject to the test methods prescribed in section IV or V of appendix A to subpart Y of part 431 of this chapter: Pump efficiency at BEP in percent (%) and PERCL.

(iii) For a pump subject to the test methods prescribed in section VI or VII of appendix A to subpart Y of part 431 of this chapter: Pump efficiency at BEP in percent (%) and PERVL.

(iv) For a dedicated-purpose pool pump subject to the test methods prescribed in § 431.464(b) of this chapter: Calculated driver power input and flow rate at each load point i (Pi and Qi), in horsepower (hp) and gallons per minute (gpm), respectively.

(4) Pursuant to § 429.12(b)(13), a certification report will include the following product-specific information:

(i) For a pump subject to the test methods prescribed in section III of appendix A to subpart Y of part 431 of this chapter: The pump configuration (i.e., bare pump); and for ST pumps, the bowl diameter in inches (in.).

(ii) For a pump subject to the test methods prescribed in section IV or V of appendix A to subpart Y of part 431 of this chapter: The pump configuration (i.e., pump sold with an electric motor); for pumps sold with electric motors regulated by DOE's energy conservation standards for electric motors at § 431.25, the nominal motor efficiency in percent (%) and the motor horsepower (hp) for the motor with which the pump is being rated; and for ST pumps, the bowl diameter in inches (in.).

(iii) For a pump subject to the test methods prescribed in section VI or VII of appendix A to subpart Y of part 431 of this chapter: The pump configuration (i.e., pump sold with a motor and continuous or non-continuous controls); for pumps sold with electric motors regulated by DOE's energy conservation standards for electric motors at § 431.25, the nominal motor efficiency in percent (%) and the motor horsepower (hp) for the motor with which the pump is being rated; and for ST pumps, the bowl diameter in inches (in.).

(c)Individual model numbers.

(1) For a pump subject to the test methods prescribed in appendix A to subpart Y of part 431 of this chapter, each individual model number required to be reported pursuant to § 429.12(b)(6) must consist of the following:

Equipment configuration
(as distributed in commerce)
Basic model number Individual model number(s)
1 2 3
Bare pump Number unique to the basic model Bare pump N/A N/A.
Bare pump with driver Number unique to the basic model Bare pump Driver N/A.
Bare pump with driver and controls Number unique to the basic model Bare pump Driver Controls.

(2) Or must otherwise provide sufficient information to identify the specific driver model and/or controls model(s) with which a bare pump is distributed.

[81 FR 4144, Jan. 25, 2016, as amended at 81 FR 4430, Jan. 26, 2016; 82 FR 36918, Aug. 7, 2017]