Lucas Adin

BUILDING TECHNOLOGIE

December 19, 2

ASRAC Pumps Working Group

DOE Regulation and Metric Proposal
2

• A ‘pump’ is typically sold

one of three ways:

1. Bare pump2. Pump + motor3. Pump + motor + controls

• DOE does not expec

consider:

– Drivers other than e

motors, e.g., engineturbines

• Only applies to es

~1‐2% of clean w

– Mechanical equipm

belts, gears

• Not typically rele

clean water pum

Pump Configurations

Pump

Motor

Pump

Control Motor

Pump
3

Proposed Definitions• ‘Pump’ is a device, inclusive of mechanical equipmen

and ‐‐ when present ‐‐ controls, that moves fluids by 

or mechanical action.

– ‘Bare pump’ will be defined as inclusive of the various pum

types/equipment classes considered for coverage.

–

‘Mechanical equipment’ may include belts, gears, or other 

–

‘Driver’ may include an electric motor, natural gas or diese

steam‐driven turbine.

–

‘Controls’ means any device that automatically adjusts the 

motor in response to system feedback, including, but not li

Variable Frequency Drives (VFDs).

Controls Driver Mech. Equip. Bare PUMP = Pump
4

Metric Applicability to Pump Configurations

• The only metric that captures efficiency implications of all com

a ‘pump’ and therefore works for all configurations is an elect

power based metric.

• By using a single metric, each pump configuration may have it

equipment class set with a unique standard or equipment cou

combined into one set with higher efficiency motors and cont

design options.

Metrics Bare Pump Pump+Motor Pump+MPump Efficiency Does not capture motor efficiency Does not c

losses 

Overall Efficiency

(w/ std. motor)

Does not 

red

Weighted Avg.Electric Input

Power (w/ std. motor)
5

Bare Pump Pump +Motor Pump+M

Equipmenttested

Test bare pump alone Option A: Test bare pump

alone and combine with

motor performance dataOption B: Test pump+motor

Option A: 

alone and motor+coperformaOption B: 

motor+co

Variable load

profiledevice

Throttling Throttling Speed red

Coveredequipment

Testing Overview

Std.

Motor

Pump Motor

Pump Control M
6

pump performance data

from pump test at rated

speed

×

standardized motor

efficiency and part load

curve

MOTOR

Bare Pump

• Standard motor will be AC Induction, NEMA Design B, open e

• HP used will be next HP above brake horsepower at 120

• Poles will be based on speed at which pump is being rat

• Standard full load motor efficiency based on Federal standard• Standard motor part‐load curves based on DOE Motor Maste

database.
7

pump performance data from

pump test at rated speed

×

manufacturer motor

efficiency at full and part

load

A

MOTOR

• ‘A’ will be required except for submersible pumps or in certain other cas

e.g., when shaft input power cannot be measured, or potentially when 

is not covered by DOE standard and cannot be rated with DOE motor TP

B MOTOR PUMP

Pump+Motor

Manufacture

pair its pum

with manufa

motor data t

in accordanc

DOE moto

Manufacture

measure pow

pump+mo

combo
8

pump performance from pump

test at rated and reduced speed

× manufacturer motor/VFD

performance map from AHRI

1210 or similar – certified or

test data

A

B

VFD MOTOR

Controls MOTOR PUMP

• Pumps with ECMs or other motor technologies with multiple or variable 

tested as pump+motor+controls.

• Quadratic system curve will be specified for part‐load points.

• ‘A’ will be required except for submersible pumps or in certain other case

shaft input power cannot be measured or controls cannot be rated with 

• Because AHRI 1210 is a voluntary standard, manufacturer burden will be 

account for both approaches.

Pump+Motor+Controls

Ma

pai

mo

Ma

me

p

co