ASSOCIATION OF HOME APPLIANCE MANUFACTURERS fl

20 NORTH WACKER DRIVE • CHICAGO, ILLINOIS 60606

312-984-5800 FAX: 312-964-5823

GOVERNMENT RELATIONS: 701 PENNSYLVANIA AVENUE, NW L14\[1[1/W'\NZ1 SUITE 900

WASHINGTON, DC. 20004

202/434-7484 FAX: 202/434-7400

FOR YOUR INFORMATION

DATE: February 24, 1995

TO: Home Laundry DOE Test Procedure Revision Task Force

(Over for Roster)

CC: February 16, 1995 Meeting Attendees

SUBJECT: Presentation to the Department of Energy -- February 16. 1995

Attached are the overheads used during the February 16, 1995 AHAM

presentation to the Department of Energy (DOE) of the proposed DOE

Clothes Washer Test Procedure.

RESPONSE

REQUESTED: None. For your information only.

Appendix A Dick Stilwell

(Maytag)

Appendix B Curt Riechman

(Whirlpool)

Appendix C Larry Hawkins

(GB Appliances)

1.9 Energy Test Cycle

1.20 Adaptive Control System

1.22 Symbol Table

2.3 Supply Water Temperature

6.0 Non-Conventional Wash

System -

2.7 Test Load Sizes

3.8 Remaining Moisture Content

5.0 Load Size

2.8 Use of Test Loads

2.10 Wash TimeSetting

2.11 Agitation/Tumble & Spin

Speed Settings

4.1.1.2 Adaptive Controls

EE-RM-94-230A COMMENT 25
TO: HL DOE Test Proc Rev TF

CHAIRMAN:

Stilwdll

Maytag

MEMBER:

Bjcrke

Frigidaire-Wet

Follett

Frigidaire-Wet

Wasson

Asko

Hawkins

GE Appliances

Loeffler

Miele Appliances

Manthei

Speed Queen

Gaucr

Whirlpool

Ricchman

Whirlpool

ALTERNATE MEMBER:

Graham

GE Appliances

Anderson

Whirlpool

Thompson

\Vhirlpool

INFORMATION COPY:

Greiner

Frigidaire Co

Wreghitt

Frigidaire Co

Modtland

Frigidaire-Wet

Thiele

White Consolidated

Ringger

Maytag

Brashares

Al-lAM Counsel

Harris

Speed Queen

Roach

Sanyo Fisher (USA)

Anderson

Whirlpool

Cunningham

Whirlpool

Seaman

Whirlpool

Stave

Whirlpool

Wcndholt

Whirlpool

EE-RM-94-230A COMMENT 25
Appendix D Phil Manthei

(Speed Oueen)

Appendix E Steve Sousek

(Maytag)

Appendix F Jeff Follett

(Frigidaire)

3.1 Clothes Container Capacity

3.2 Automatic and SemiAutomatic Washers

3.3 "Extra Hot" Wash

3.5 Intermediate Wash

Temperature Selection

3.7 Water Heating Clothes

Washer

4.1 TUFTab1e

4.1.2 Water Heating Clothes Washer

4.2 Water Consumption

JTW: ms

Appendices

EE-RM-94-230A COMMENT 25
18

16

14

12

Cw

V

C 10

0

0.

6

1*

0

€

Tap Temperatures

Load Comp Study

Cold Tap Water Temperature Measured by Respondent

Average Cold Tap Water

Temperatures 600F

34- 35 40 50 55 60 65 70 75 80 85 90 95 Ith

18% DIdnt Answer Degrees

O 1994

1988

c:i

< ()0

7:- o

-S.

(D

-J

EE-RM-94-230A COMMENT 25
20

18

16

14

12

.10

0

6

C

Tap Temperatures

Load Comp Study

Hot Tap Water Temperature Measured by Respondent

El 1994

1988

89 90 95 100 105 110 115 120 125 130: 135 140

Degrees

19% Didn't Answer

EE-RM-94-230A COMMENT 25
Em,

E

H

C

m

h

w

C

x

+

a

a

a

n

R

- Electrical Energy Consumption

- Hot Water Consumption

- Cold Water Consumption

- Extra Hot Wash (max. temp.> 13 0°F.)

- Hot Wash (max. temp. >= 130°F.)

- Warm Wash (intermediate temp.)

- Cold Wash (minimum temp.)

- Maximum Test Load

- Above Average Test Load

- Average Test Load

- Below Average Test Load

- Minimum Test Load

- Hot Water Consumed by Warm Rinse

- Electrical Energy Consumed by Warm Wash/Warm Rinse

- Electrical Energy Consumed by Warm Rinse

- Maximum Test Load

- Average Test Load

- Minimum Test Load

TUFm - Temperature Use Factor

m -ExtraHotWash

h -HotWash

w -WarmWash

c - Cold Wash

LR -Warm Rinse

Vh - Temperature Weighted Hot Water Consumption

TX - Maximum Test Load

a - Average Test Load

- Minimum Test Load

- Hot Water Energy Consumption (also includes machine

energy for water heating clothes washers)

• F - Load Usage Factor

LQ - Total Water Consumption

max - Maximum Test Load

aver - Average Test Load

mm - Minimum Test Load

RMC - Remaining Moisture Content

WI - Initial Weight of Dry Test Load

WC - Weight of Test Load After Extraction

ME - Average Machine Electrical Energy Consumption

(Non-water heating clothes washers only)

- Total Per-Cycle Energy Consumption

EE-RM-94-230A COMMENT 25
"ENERGY TEST CYCLE" MEANS THE CYCLE RECOMMENDED BY THE

MANUFACTURER FOR WASHING COTTON AND/OR LINEN CLOTHES. IT

INCLUDES THE AGITATION/TUMBLE OPERATION, SPIN SPEED(S), WASH

TIMES, AND RINSE TIMES APPLICABLE TO THAT CYCLE, INCLUDING

WATER HEATING TIME FOR WATER HEATING CLOTHES WASHERS, AND

APPLIES TO ALL WASH/RINSE TEMPERATURE SELECTIONS A VAILABLE

ON THE MODEL, REGARDLESS OF WHETHER THE WASH/RINSE

TEMPERATURE SELECTIONS ARE AVAILABLE IN THE CYCLE

RECOMMENDED FOR COTTONS AND/OR LINENSO

6

EE-RM-94-230A COMMENT 25
"Adaptive control systems" refers to a clothes washer control system which is capable of

automatically adjusting washer operation or washing conditiäns, without the need for

consumer intervention and/or actions, based on characteristics of the test load placed in

the clothes container. Examples would be clothes washer control system independent

selection, modifications, or absolute control of water fill level, wash water temperature,

agitation and/or tumble cycle time, number of rinse cycles, spin speed, etc.

Note: The energy consumption of any adaptive system which relies on the use of,

detection of, or the presence of either soil, soap, suds, or any additive laundering

substitute or complimentary product to alter the "normal" operation of the clothes

washer must be detemined following the field test procedures defined in section 6:1;

EE-RM-94-230A COMMENT 25
6 FIELD TESTING

No,iconventional Wash System Energy Consumption Test

For washer controls or systems that cannot be adequately measured for energy

consumption by the test procedure, or cannot be calculated using a procedure generally

accepted by DOE and other manufacturers, a field test must be conducted.

The field test shall consist of a minimum of 10 test units and 10 base units, with a

minimum of 50 cycles per unit. The units shall be monitored in such a way as to

accurately record the total energy consumption per cycle. At a minimum, the following

must be measured and recorded throughout the test period for each test unit Hot water

usage in gallons, electricalenergy in kilowatt-hours, and the cycles of usage.

EE-RM-94-230A COMMENT 25
Appendix B

Curt Riechman

Whirl pool

REMAINING MOISTURE CONTENT (RMC)

RMC AS A % OF BONE DRY WEIGHT

• MAXIMUM LOAD SIZE

• MAXIMUM FILL

• ENERGYTEST CYCLE

• WARM RINSE CONSIDERED

CR: cjb

2/15/95

EE-RM-94-230A COMMENT 25
ADAPTIVE WATER FILL

MAXIMUM LOAD CALCULATION

ASSUMPTIONS:

Basket Volume

Regular Capacity 2.4 Cu. Ft.

Large Capacity 2.8 Cu. Ft.

Loading

Volume Mm. Max. Avg.

(Cu. Ft.) Load (#) Load (#) Load (#)

2.4 (Reg.) 3.0 11.0* 57*

2.8 (Lrg.) 3.0 13.0* 6.7*

*Based on P&G data presented by AHAM to DOE/NIST on 2/93

DERIVATION:

(Volume)(Constant) = Max. Load

Mm. Load + Max. Load Avg. Load

2

a) (2.4 Cu. Ft.)(C) = 1l.0#

b) (2.8 Cu. Ft.)(C) = 13.0#

c) 3.0# + (2.4 Cu. Ft.)(C) = 5.7#

2

d) 3.0# + (2.8 Cu. Ft.)(C' = 6.7#

2

Avg. C= 4.6 + 4.6 + 3.5 + 3.7

4

C =4.6 #/Cu. Ft.

C 4.6 #/Cu. Ft.

C= 3.5 #/Cu. Ft.

C= 3.7 #/Cu. Ft.

Avg. C = 4.1 #/Cu. Ft.

EE-RM-94-230A COMMENT 25
5. TEST LOI4DS

Table 5. 1: Test Load Sizes.

Volume Minimu Maximu Average

(Cu. Ft.) Load Load Load

< 0.79 3.0 lb. 3.0 lb. 3.00 lb.

0.80 - 0.89 3.0 lb. 3.5 lb. 3.25 lb.

0.90 - 0.99 3.0 lb. 3.9 lb. 3.45 lb.

1.00 - 1.09 3.0 lb. 4.3 lb. 3.65 lb.

1.10 - 1.19 3.0 lb. 4.7 lb. 3.85 lb.

1.20 - 1.29 3.0 lb. 5.1 lb. 4.05 lb.

1.30 - 1.39 3.0 lb. 5.5 lb. 4.25 lb.

1.40 - 1.49 3.0 lb. 5.9 lb. 4.45 lb.

1.50 - 1.59 3.0 lb. 6.4 lb. 4.70 lb.

1.60 - 1.69 3.0 lb. 6.8 lb. 4.90 lb.

1.70 - 1.79 3.0 lb. 7.2 lb. 5.10 lb.

1.80 - 1.89 3.0 lb. 7.6 lb. 5.30 lb.

1.90 - 1.99 3.0 lb. 8.0 lb. 5.50 lb.

2.00 - 2.09 3.0 lb. 8.4 lb. 5.70 lb.

2.10 - 2.19 3.0 lb. 8.8 lb. 5.90 lb.

2.20 - 2.29 3.0 lb. 9.2 lb. 6.10 lb.

2.30 - 2.39 3.0 lb. 9.6 lb. 6.30 lb.

2.40 - . 2.49 3.0 lb. 10.0

2.50 - 2.59 3.0 lb. 10.5 lb. 6.75 lb.

2.60 - 2.69 3.0 lb. 10.9 lb. 6.95 lb.

2.70 - 2.79 3.0 lb. 11.3 lb. 7.15 lb.

2 . 80 - 2 . 89 3 . 0 lb . 11.7 lb. 7.35 lb.

2.90 - 2.99 3.0 It). 12.1 lb. 7.55 lb.

3.00 - 3.09 3.0 lb. 12.5 lb. 7.75 lb.

3.10 - 3.19 3.0 lb. 12.9 lb. 7.95 lb.

3.20 - 3.29 3.0 lb. 13.3 lb. 8.15 lb.

3.30 3.39 3.0 lb. 13.7 lb. 8.35 lb.

3.40 - 3.49 3.0 lb. 14.1 lb. 8.55 lb.

3.50 - 3.59 3.0 lb. 14.6 lb. 8.80 lb.

3.60 - 3.69 3.0 lb. 15.0 lb. 9.00 lb.

3.70 - 3.79 3.0 lb. 15.4 It). 9.20 lb.

Notes:

I ) All test load veihts are bone diy weights

2) Allowable tolerance on the test load weights are +/- 10 pounds

t

21 Rev6

EE-RM-94-230A COMMENT 25
- I I V • S WI S I I I J

AVERAGE

-LARGE 6.7# 15

-REGULAR 5.7#

10

5

LARGE

REGULAR

02468 101214

POUNDS

SOURCE-P&G

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES

1_.

Discussion will cover changes to:

-Section # 2.8: Use of Test Loads

-Section # 2.10: Wash Time Settings

-Section # 2.11: Agitation/Tumble and Spin Speed Settings

-Section #4.1.1.2: Table of Load Use Factors

• Overview "Adaptive" Control System Procedures

rn -c

1 (C

-D C

c:1) )<

= 2' C

n

1 Hh2/15/95

(i&)

EE-RM-94-230A COMMENT 25
P&G Data Curves from Feb '93 Workshop

Regular Capacity

Load

Size % Distrib % Cum

0 0 0.0

1 3.5 3.5

2 6.0 9.5

3 8.5 18.0

4 14.0 32.0

5 18.5 50.5

6 13.5 64.0

7 15.0 79.0

8 10.0 89.0

9 __.4.5 93.5

10 3.0 96.5

11 2.0 98.5

12 1.5 100.0

13

________

14 _______

______

_____

20

18

16

14

0

12

/0

8

6

4

2

0

REGULAR WASHER

P&G Data

Average =5.7 Lbs

0 1 2 3 4 6 7 8 9 10 11 12

LOAD SIZE

Large_Capacity

Load Size % Disthb % Cum

0 0 0.0

1 2.0 2.0

2 3.5 5.5

3 6.3 11.8

4 10.0 21.8

5 14.5 36.3

6 16.0 52.3

7 11.0 63.3

8 13.5 76.8

9 9.0 85.8

10 6.0 91.8

11 3.8 95.5

12 2.0 97.5

13 1.5 99.0

14 1.0 100.0

LARGE WASHER

-&- P&G Data

18

16

14

12

%1o

8

6

4

2

0 I I I I III I I II

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

LOAD SIZE

Note: The values shown were scaled off of the charts presented by P&G in the AHAMIDOEINIST Workshop

EE-RM-94-230A COMMENT 25
Values for Curves Fitted to P& G Data

Re utar

X Y=f(X)

0.00 0.00

0.29 0.77

0.57 1.50

0.86 2.27

1.14 3.01

1.43 3.77

1.71 4.25

2.00 4.88

2.28 5.65

2.57 6.58

2.85 7.67

3.14 8.90

3.42 10.25

3.71 11.67

3.99 13.12

4.28 14.51

4.56 15.79

4.85 16.88

5.13 17.72

5.42 18.24

5.70 18.42

5.99 18.24

6.27 17.72

6.56 16.88

6.84 15.79

7.13 14.51

7.41 13.12

7,70 11.67

7.98 10.25

8.27 8.90

8.55 7.67

8.84 6.58

9.12 5.65

9.41 4.88

9.69 4.25

9.98 3.77

10.26 3.39

10.55 3.12

10.83 2.92

11.12 2.77

11.40 2.40

12.00 1.50

Large

X Y=f(X)

0.00 0.00

0.34 0.62

0.67 1.24

1.01 1.86

1.34 2.47

1.68 3.09

2.01 3.71

2.35 4.33

2.68 4.95

3.02 5.88

3.35 6.97

3.69 8.20

4.02 9.55

4.36 10.97

4.69 12.42

5.03 13.81

5.36 15.09

5.70 16.18

6.03 17.02

6.37 17.54

6.70 17.72

7.04 17.54

7.37 17.02

7.71 16.18

8.04 15.09

8.38 13.81

8.71 12.42

9.05 10.97

9.38 9.55

9.72 8.20

10.05 6.97

10.39 5.88

10.72 4.95

11.06 4.18

11.39 3.55

11.73 3.07

12.06 2.69

12.4 2.42

12.73 2.22

13.07 2.07

13.00 1.50

14.00 1.00

Regular & Large

______ Cumul

X

_____

Yf(X) freg Percent

0.00 0.00 0.0 0.0

0.31 0.69 0.7 0.2

0.62 1.37 2.1 0.6

0.93 2.06 4.1 1.2

1.24 2.74 6.9 2.0

1.55 3.43 10.3 3.0

1.86 3.98 14.3 4.1

2.17 4.60 18.9 5.4

2.48 5.30 24.2 6.9

2.79 6.23 30.4 8.7

3.10 7.32 37.7 10.8

3.41 8.55 46.3 13.3

3.72 9.90 56.2 16.1

4.03 11.32 67.5 19.4

4.34 12.77 80.3 23.0

4.65 14.16 94.4 27.1

4.96 15.44 109.9 31.5

5.27 16.53 126.4 36.3

5.58 17.37 143.8 41.3

5.89 17.89 161.7 46.4

6.20 18.07 179.7 51.6

6.51 17.89 197.6 56.7

6.82 17.37 215.0 61.7

7.13 16.53 231.5 66.5

7.44 15.44 246.9 70.9

7.75 14.16 261.1 75.0

8.06 12.77 273.9 78.6

8.37 11.32 285.2 81.9

8.68 9.90 295.1 84.7

8.99 8.55 303.6 87.2

9.30 7.32 311.0 89.3

9.61 6.23 317.2 91.1

9.92 5.30 322.5 92.6

10.23 4.53 327.0 93.9

10.54 3.90 330.9 95.0

10.85 3.42 334.3 96.0

11.16 3.04 337.4 96.9

11.47 2.77 340.1 97.6

11.78 2.57 342.7 98.4

12.09 2.42 345.1 99.1

12.20 1.95 347.1 99.6

13.00 1.25 348.3 100.0

1 {

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES

P& G LOAD SIZE DA TA

REGULAR WASHER

Mod Normal Distr -b-- P&G Data]

%u1o2//

LARGE WASHER

Mod Normal Distr -a-- P&G Data

18

16

14

,,/A7Lb

12

%10

8

6

4

2

0

0 1 2 3 4 5 6 7 8 9 10 II 12 13 14

LOAD SIZE

0 1 2 3 4 S 6 7 8 9 10 11 12

LOAD SIZE

Cumulative Percent

(Both sizes Combined)

C

U

M

M

U

L

A

I

V

E

STANDARD WASHERS

I AA

0 1 2 3 4 5 67 8 9 10 II 12 13

LOAD SIZE

2 Oh 2/15/95

I VU

90

80

70

60

50

40

30

20

10

0

EE-RM-94-230A COMMENT 25
LOADS

CUSTOMERS WASHER LOAD DISTRIBUTION

DRIVE CAPACITY

a AVERAGE

-LARGE 61# 15

-REGULAR 5.7#

?. ('

5

LARGE

EGULAR

Q _._...L 1 • I I F

o 2 4 6 8 10 12 14

POUNDS

SOURCE-P&G

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES

Water Fill vs Load Size

Delicate A 1 Extra Large

IIh 2/15/95

• Load size and water level increase together

3

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES

- -, -:

STANDARD WASHERS

C 100

U

90

m

m 80

u 70

60

50

i 40

and Mm. 30 _________________ Water Levels

20

% 10

0

012345678910111213

LOAD SiZE

DOE Water Fill Factors

Maximum Fill Minimum Fill

72% 28%

Values are Based on

P&G Consumer Usage Data

CONCLUSIONS:

- Consumers are not good judges of clothes load size

- Cdnsumers overuse maximum fill level

- Controlling water fill using load size will produce energy savings

4 11h2/15/95

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES __

Adaptive System Test Procedures

Adaptive Control Systems

- Test load size is linked to measured clothes washer capacity.

- Manual Control systems require testing with max. and mm. loads.

- Adaptive control systems require max., mm., and average size loads, as a

minimum and in some cases may require (2) additional test loads.

- Procedures as defined are applicable to all clothes washers (i.e., HA, VA,

compact, or standard)

- New Load usage Eactors are defined for products with adaptive systems. The

LUF's for manual controlled products are unchanged.

- Adaptive systems not include any concept requiring soap, soil level

detection, or other laundry aid products.

• Clothes washers with adaptive control systems are commercially available

today.

5 IIh 2/15/95

EE-RM-94-230A COMMENT 25
Manual

Controls

Adaptive

Controls

Max

Load 12%

74%

14%

• Manual controls use loads, but consumer judgment is still dominate factor

• Adaptive cdntrols select the appropriate water fill level by load size sensing

• Energy conservation opportunities are not limited to adaptive controls

(ie, annulus water reduction, thermostatic temperature control, etc)

6

tIh 2/15/95

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES ___

Changes to Section 28 Use of Test Loads:

2.8 Use of Test Loads

• References to type of clothes washer (top load, front load, Standard, and compact

removed.

• Use of test loads applies to aU clothes washer energy and water consumption testing.

• Added requirements for bone dry conditioning prior to baseline load weight

measurement.

• Added requirement for load to be less than 104% bone dry prior to subsequent runs.

• Table 2.8 added:

Table 2.8: Test Load Sizes and Water Fill Settings Required

Water Fill

Control System Manual

_______________________

Manual Adaptive

Other Control

________________________ _________________________

Manual Adaptive Manual or Adaptive

Systems

____________ _________

Test Load Water Fill

_____________

Test Load Size

_________

Water Fill

____________

Test Load Size

___________

Water Fill

Size (pounds) Setting (pounds) Setting (pounds) Setting

Max Max Max Max Max As

Mm Mm Avg Max Avg+ Determined

Mm Mm Avg by the

Avg- Clothes

_______________

____

____________

___

_________

___

_____________ _________

Mm Washer

7 2/15/95

EE-RM-94-230A COMMENT 25
DOE_ENERGY TEST PROCEDURES

1

Following Load Usage Factors are defined in section 4.1.1:

4.1.1.2 Load Usage Factors

Water Fill Control

Manual Manual Adaptive

System

Other Control Systems Manual Adaptive

Manual or

Adaptive

F max = 0.72 0.10 0.12

=

' aver - 0.62 0.74 ___________________

m • = 0 28 0.28 0.14

- Values are based on P&G load usage data

- Faver is only used for adaptive or "smart controls"

a IIh 2/15/95

EE-RM-94-230A COMMENT 25
DOE ENERGY TEST PROCEDURES

2,10 Wash time setting The wash time (agitation! tumble) is defined in

section 1.9, but shall not be less than 70% of the maximum wash time

available on the energy test cycle.

2.11 Agitation/tumble and spin speed setting. For clothes washers equipped

with selectable speed controls (agitationltumble and/or spin), the energy

test cycle speed, per section 1.9, shall be used.

Changes recognize the giowing importance of accurate measurement

of mechanical energy as clothes washers become more efficient.

9 IIh 2/15/95

EE-RM-94-230A COMMENT 25
Appendix D

Phil Manthei

Speed Queen

Clothes Container Capacity

Objective of Task Force:

1. Address whether dispensers or other removable parts are to

remain in place.

2. Address void spaces which the clothes load would not occupy.

3. Remove confusion about sensor overrides.

4. Define a reasonable and safe water temperature to perform

testing. Existing procedure suggests 1400 F in density

definition.

5. Provide density of water values to avoid potential confusion.

2-8.PJM/sjin

2/16/95

EE-RM-94-230A COMMENT 25
Capacity

Objective #1: "Removable Parts" Addressed

Verbiage employed: "All parts which occupy space within the

clothes container and which are recommended for use with the

energy test cycle shall be in place...."

Objective #2: "Void Spaces" Addressed

Verbiage employed: "... and shall be lined with 2 mu, plastic

sheet to prevent water from entering any void space."

Objective #3: Remove "Sensor Override Confusion

Removed "(This filling procedure may require overriding the fill

level control, or manually completing the fill to the top of the

container after the fill sensor terminates the fill at maximum

level.)"

Verbiage employed: "Fill the clothes container manually with .. .to

its uppermost edge."

Objective #4: Define "Safe Water Temperature"

Verbiage employed: "... with either 600 F ± 5° F or 100° F ± 5°

F water to its upper most edge."

Objective #5: Provide "Density Values of Water"

d = Density of water (62.0 lbs./ft.3 for 100° F or 62.3 lbs./ft.3 for

60° F)

2-8.PIM/sjm

2/16195

EE-RM-94-230A COMMENT 25
Water & Energy Measurement

Task Force Objectives:

Simplification.

Measure Jj water use, not just hot water.

- Provide recognized procedure to total water usage measurement

as requested by utilities and others.

Encompass all existing clothes washer configurations and

incorporate methods to test adaptive fill control technology.

One wash/rinse temperature selection clothes washers.

- Water heating clothes washers.

- Electronic water temperature control clothes washers.

Incorporate a cloth test load.

- Size of load at minimum water level to be 3.0 pounds.

- Size of load at maximum water level to correlate with

measured clothes container capacity and a table provided for

correlation.

- Additional size loads required to be tested if an "adaptive fill

control" is available. An "average load" size correlating to the

measured clothes container capacity is also provided in the

table with maximum and minimum test load sizes.

2-8.PJM/sjm

2/16/95

EE-RM-94-230A COMMENT 25
Water & Energy Measurement - Cont0

Simplification

1. Consider all washers as capable of providing a maximum wash

water temperature at: (a) the test supply hot water temperature

of 1300 F or less, or (b) greater than 130° F by internal heating.

2. Consider all washers as capable of providing wash cycles with

wash water temperature termed as follows with cold rinses:

COLD (The minimum available; typically, 60° F cold

supply water.)

HOT (^ 130° F hot supply water.)

WARM (Intermediate; between hot and cold.)

Can be a simple calculation rather than

measurement if the one or multiple available

selections are uniformly distributed between

hot and cold.

EXTRA HOT (> 130° F water available by internal heating.)

3. Account for availability of warm rinse option.

4. Provided a reference chart (Table 3.2) to aid testers in

determining procedure test sections required to be followed for

the configuration of the product being tested.

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EE-RM-94-230A COMMENT 25
Water & Energy Measurement Cont.

Table 3.2: Test Section Reference

Max. Wash

Temp. Available

<= 130°F > 130°F

Number of Wash 1 2 >-3 3 >3

Temp. Selections

Test Sections 3.6 3.4 3.4 3.3 3.3

Required to be

Followed 37* 3.6 3.5 3.5 3.4

3.8 37* 3.6 3.6 3.5

3.8 37* 37* 3.6

3.8 3.8 37*

3.8

* Only applicable to machines with warm rinse.

* * *This only applies to water heating clothes washers on which the

maximum wash temperature available exceeds 130°F.

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EE-RM-94-230A COMMENT 25
Water & Energy Measurement Cont.

Total Water Consumption Measured

Verbiage employed:

Section 3.2.2: "Including hot and cold water wash, deep rinse,

and spray rinse."

Encompass Existing Conflirations Plus Adaptive Controls

Section 3.2.3: Address Adaptive Controls

Three (3) scenarios exist:

1. Adaptive and manual control combination:

a) test using adaptive;

test using manual;

average results; or

b) use "field testtt procedure.

2. Adaptive controls which are completely self-determinate of

proper water fill level:

a) use adaptive procedure.

3. Adaptive controls which do not adaptively modify water

fill levels:

a) set fill to maximum level for maximum load size and

average load size;

b) set fill to minimum level for minimum load size.

Section 3.2.4: Address Manual Controls

1. Test maximum load with manually selected maximum fill

level.

2. Test minimum load with manually selected minimum fill

level.

3. No "averaget' load size tests required.

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EE-RM-94-230A COMMENT 25
Water & Energy Measurement Cont,

Procedure "Similarity" Exists

Sections: 3.3 Extra Hot Wash Cycle

3.4 Hot Wash Cycle

3.5 Warm Wash Cycle

3.6 Cold Wash Cycle

Procedures call out the following routine:

- Test maximum load and maximum' water fill.

- Test minimum load and minimum water fill.

Test average load.

- Check for linearity of adaptive fill system:

• Calculate total water use @ maximum load.

• Calculate total water use @ average load.

• Calculate total water use @ minimum load.

• Additional load sizes testing required if the measured total

water use of the average load is different by 5% or more

than a calculated average of the maximum and minimum

load total water use.

- If non-linear, test an "average (+)" and an "average (-)" load

size where:

Average (+) = Maximum + Average

2

Average (-) = Minimum + Average

2

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EE-RM-94-230A COMMENT 25
Water & Energy Measurement - Cont

Qualifiers exist regarding necessity to test warm cycle.

Warm Wash: 1. No tests required if available selections are

uniformly distributed between hot and cold

wash.

2. If distributed non-uniformly, test all

intermediate selections and average the results.

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EE-RM-94-230A COMMENT 25
Water & Energy Measurement - Cont0

Warm Rinse

Procedures common to both non-water heating and water heating

clothes washers:

- Measure hot water consumption only of rinse.

- Test the "hottest" rinse cycle available.

- Includes deep and spray rinses.

- Test maximum load size and maximum fill level.

- Test average load size and fill level (if adaptive).

- Test minimum load size and minimum fill level.

Additional procedure unique to water heating clothes washers:

- Measure the total electrical energy for a warm wash cycle and

hottest rinse cycle: use maximum, minimum, and average

(adaptive) load sizes.

- Subtract the total electrical energy for the warm washcycle

with cold rinse (previously determined in Section 3.5) from the

warm wash and hottest rinse cycle to obtain the additional

electrical energy for warm rinse.

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EE-RM-94-230A COMMENT 25
1979 1983 1986 1988 1989 1990 11991 1992 1993 j994 % % % % ,% %

TEMPERATURE

SELECTION

FOR WASH

HOT 20 17 18 17 19 18 16 16 14 16

WARM 60 64 55 56 51 51 49 . 51 50 48

COLD 20 19 27 27 30 31 35 33 36. 36

100 100 100 100 100 100 100 :100 100 100

TEMPERATURE

SELECTION

FOR RINSE

•WARM 37 27 29 24 26 22 23 21 20 18

COLD/COOL 63. 73 -

71 76 74 78 -

77 -

79 80 82

100 100 100 100 100 100 100 100 100 100

D) c+0 '< (DIi

c-I- < CD

(I) -.

ox

(i_C rn

CD

EE-RM-94-230A COMMENT 25
33% Warm Rinse Usage

Considering all clothes washers, 20% of aU loads are rinsed in warm water.

However, approximately only 60% of the total number of clothes washers have a warm rinse

option avajlable.Therefore, the 20% warm rinse usage needs to be applied to only 60% of the

machines. This will more accurately reflect how these machines are used by the consumer.

Since 20% is 1/3 of 60%, warm rinse is selected for 33% of

the loads on machines which have warm rinse available.

Total percent

of loads rinsed --

in warm water

Total loads

washed (100%)

10 20 3o 7c So 90

____ 60% of all loads can be J

40% of all loads can only

_____ rined in warm water be rinsed in cold water

EE-RM-94-230A COMMENT 25
TABLE 4.1: TEMPERATURE USE FACTORS

Max Wash Temp Availabic i 30°F' > 130°F

No. Wash Temp Selections Single 2 Temps > 3 Teinp .3 Temps >= 3 Temps

TUF11 (extra hot) NA NA NA 0.14 0.05

TUPh (hot) NA 0.64 0.14 NA 0.09

TUFW (warm) NA NA 0.50 0.50 0.50

:I'uI (cold) 1.00 0.36 0.36 0.36 0.36

TUFIL (wannrinse) 0.33 0.33 0.33 0.33 0.33

EE-RM-94-230A COMMENT 25
Temperature setting • Percent

of use

5

25

55

15

EE-RM-94-230A COMMENT 25
4.1.2 Energy Consumption of Water Heating Clothes Washers

Total per-cycle hot water energy and machine electrical energy consumption

a) Emuc = [VbX * T * K} ^ [Ems *TU1] + [Ehx * TUFh] + [Ewx * TUFw] + [J * TUFc] + [ER * TUFRI

Old Em = [0.05x E!t,1n1 + [0.25 X Eh,mJ + [0.55 X Ew,mI +[0.15 X

b) Eaver [Vha * T * K] + [Em9 *TUF] + [Eli9 * TUF11] + [Ewa * TUFw] + [Eca * TUFc] + [ERa * TUFR]

c) Emjn - [Vh *

I

* K] + [Em *TUF] + [Ehn * TUFh] + [Ewe * TUFW] ^ [Ecu * TUFc] + [ERa * TUFRI

Old Emjn = [0.05 X Eht,mjn] + [0.25 X Eh,mjnhl + [0.55 X E,jj1I1 + [0.15 X

mc

- CD

.-,.

(C -f CD

CD Q

-. -><

- -J

CD CD m

EE-RM-94-230A COMMENT 25
4.1.2.2 r1lot1l weightc(l per-cycle energy consumption (EnJe) Cxpresse(1 in kWh per cycle.

[Emax * Fjiiaxl + [Eaver * 1averI +[E11111 * F111111]

where:

Eavet', and E1-h1, are as defined in 4. 1 .2. 1

Faver, and are as defined in 4. 1. 1.2.

Old ETE = [0.72 x E0-] + 10.28 x Emini

4.2 Water consumption of clothes_washers.

4.2.1 Per-cycle Water Consumption.

Q11, = 1Hc + Ccxl

Qaver = [Hca + CCaj

Note: Hca is the average of Hca+, Hca. and 1-lc1 if above average and below average test loads were required to be tested.

The same applies to Cca.

Q1j = [Hc1 + Ccf1]

where

Hc, CCX, HCa, CCa, FICn, and Cc1 are defined in 3,6.

EE-RM-94-230A COMMENT 25
Note: Water heating clothes washers which also consume hot supply water;

It is recognized that this test Procedure does not account for reheating of the initial portion of hot supply water that is less than the defined

test procedure hot supply water value, due to household supply line losses and seasonal and geographic variations. An appropriate factor

must be developed and applied to the first term in equations in section 4.1.2.1, or a field test conducted comparing water heating clothes

washers which also consume hot supply water to water heating clothes washers which do not consume hot supply water.

EE-RM-94-230A COMMENT 25
4.2.2 Total Weighted Per-cycle Water Consumption.

QT = [Qmax * Fm] + [Qaver *

Faver] +

* Fj]

where

Qmax

Qaver

Qmin

Fm

Faver

Fj

As defined in 4.2.1.

As defined in 4.2.1.

As defined in 4.2.1.

As defined in 4.1.1.2.

As defined in 4.1.1.2.

As defined in 4.1.1.2.

EE-RM-94-230A COMMENT 25