### Clothes Washer -- Standard Proposed AHAM Test Procedure with RMC Added (i) 392 cycles/yr Markup 1.7 Design Design Option Increm. Total Retail Energy Use --Propo:ed Test Procedure Hv Total MEF Water Use Level (4)(5)(6)(8)(11) perunit Mfg. Cost Hot (135 F Machine Total Clothes Energy Factor ref.=62% Energy cu. ft. per PerCycle (13) mfg. costs Cost (2) Water Energy Energy Container cu. ft. per RMC withMEF kWh/cycle Total Gallons per

$ (12) $ (12) $ (12) kWh/cycle kWh/cycle kWh/cycle cu. ft. kWh/cycle (7) kWh/cycle (7) Gallons cu. ft. cap. 0 Baseline (vert. axis) $225 $383 1.57 0.22 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 1 0+RMC= 50% $10 $235 $399 1.57 0.23 1.80 2.93 1.63 1.22 3.02 0.969 38.9 13.3 2 0+RMC= 40% $9 $243 $414 1.57 0.23 1.81 2.93 1.62 0.96 2.76 1.059 38.9 13.3 3 2+ThennosaticMixing Valve $8 $252 $428 1.43 0.23 1.66 2.93 1.76 0.96 2.62 1.119 38.9 13.3 4 3+1mproved Fill Control $17 $268 $456 1.28 0.23 1.52 2.93 1.93 0.96 2.47 1.184 36.1 12.3 5 4+RMC= 35% $22 $290 $494 1.28 0.24 1.53 2.93 1.92 0.82 2.35 1.246 36.1 12.3 6 4+RMC= 30% $4 $295 $501 1.28 0.27 1.56 2.93 1.88 0.69 2.25 1.303 36.1 12.3 0 Baseline (vert. axis) $225 $383 1.57 0.22 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 7 Horizontal Axis Design $101 $327 $555 0.46 0.25 0.71 2.77 3.89 1.54 2.25 1.228 26.1 9.4 8 Horz. Axis w/recirculation $3 $330 $561 0.37 0.26 0.63 2.74 4.32 1.54 2.17 1.259 21.8 8.0 9 8+RMC= 50% $10 $339 $577 0.37 0.27 0.64 2.74 4.28 1.22 1.86 1.471 21.8 8.0 10 8+RMC= 40% $9 $348 $592 0.37 0.27 0.65 2.74 4.23 0.96 1.60 1.707 21.8 8.0 II 8+RMC=35% $22 $370 $629 0.37 0.28 0.66 2.74 4.17 0.82 1.48 1.849 21.8 8.0 12 8+RMC= 30% $4 $374 $636 0.37 0.31 0.69 2.74 3.98 0.69 1.38 1.987 21.8 8.0 13 13+henrmostaic Mixing valve $8 $382 $650 0.34 0.31 0.65 2.74 4.20 0.69 1.34 2.039 21.8 8.0 0 Baseline (vert. axis) $225 $383 1.57 0.22 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 14 0+Tighter tub tolerance $7 $232 $395 1.48 0.22 1.70 2.93 1.72 1.54 3.24 0.903 36.0 12.3 15 14 t+hennostali Mixing Valve $8 $241 $409 1.34 0.22 1.56 2.93 1.87 1.54 3.10 0.944 36.0 12.3 16 15+lmproved Fill Control $17 $257 $438 1.21 0.22 1.43 2.93 2.05 1.54 2.97 0.987 34.2 11.7 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 0+Added Insulation $49 $274 $466 1.57 0.22 1.79 2.94 1.64 1.54 3.33 0.882 38.9 13.2 20 O+Increase MotorEfficiency $10 $235 $399 1.57 0.20 1.77 2.93 1.65 1.54 3.31 0.883 38.9 13.3 21 0+Suds Saving (9) $28 $253 $430 1.63 0.22 1.85 2.91 1.57 1.54 3.39 0.859 35.6 12.2 22 0+Direct Drive Motor $71 $296 $503 1.57 0.09 1.66 2.94 1.77 1.54 3.20 0.919 38.9 13.2 Footnotes listed on separate page



### 7/9/95

. c:\clean3\clthwashV,.pdsht\AHAM 15B2 

### Clothes Washer
-- Standard ,-: 

## - Proposed AHAM Test Procedure with RMC Added (I) 

### 392 cycles/yr Markup 1.7 Design Design Option Increm. Total Retail Energy Use
-- Propo:;ed Test Procedure Hv Total MEF Water Use Level (4)(5)(6)(8)(11) perunit Mfg. Cost Hot (135 FJ Machine Total Clothes Energy Factor ref.=62% Energy cu. ft. per PerCycle (13) mfg. costs Cost (2) Water Energy Energy Container cu. ft. per 

### RMC withMEF kWh/cycle Total Gallons per

$ (12) $ (12) $ (12) kWh/cycle kWh/cycle i kWh/cycle cu. ft. kWh/cycle (7) kWh/cycle (7) Gallons cu. ft. cap. 0 Baseline (ven. axis) $225 $383 1.57 0.22 I 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 I O+RMC =50% $10 $235 $399 1.57 0.23 1.80 2.93 1.63 1.22 3.02 0.969 38.9 13.3 2 0+RMC=40% $9 $243 $414 1.57 0.23 1.81 2.93 1.62 0.96 2.76 1.059 38.9 13.3 3 2...Thermostatic MUting Valve $8 $252 $428 1.43 0.23 1.66 2.93 1.76 0.96 2.62 1.119 38.9 13.3 4 3+lmprovedFill Control $17 $268 $456 1.28 0.23 1.52 2.93 1.93 0.96 2.47 1.184 36.1 12.3 5 4+RMC = 35% $22 $290 $494 1.28 0.24 1.53 2.93 1.92 0.82 2.35 1.246 36.1 12.3 6 4+RMC= 30% $4 $295 $501 1.28 0.27 1.56 2.93 1.88 0.69 2.25 1.303 36.1 12.3

- 0 Bac;eline (ven. axis) $225 $383 1.57 0.22 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 7 Horizontal Axis Design $101 $327 $555 0.46 0.25 0.71 2.77 3.89 1.54 2.25 1.228 26.1 9.4 8 Horz. Axis wfrecirculalion $3 $330 $561 0.37 0.26 0.63 2.74 4.32 1.54 2.17 1.259 21.8 8.0 9 8+RMC= 50% $10 $339 $577 0.37 0.27 0.64 2.74 4.28 1.22 1.86 1.471 21.8 8.0 10 8+RMC = 40% $9 $348 $592 0.37 0.27 0.65 2.74 4.23 0.96 1.60 1.707 21.8 8.0 II 8+RMC= 35% $22 $370 $629 0.37 0.28 0.66 2.74 4.17 0.82 1.48 1.849 21.8 8.0 12 8+RMC= 30% $4 $374 $636 0.37 0.31 0.69 2.74 3.98 0.69 1.38 1.987 21.8 8.0 13 13+Thermostatic**Mi~ing** Valve $8 $382 $650 0.34 0.31 0.65 2.74 4.20 0.69 1.34 2.039 21.8 8.0 0 Bac;eline (ven. axis) $225 $383 1.57 0.22 1.79 2.93 1.63 1.54 3.33 0.878 38.9 13.3 14 0+Tightertull tolerance $7 $232 $395 1.48 0.22 1.70 2.93 1.72 1.54 3.24 0.903 36.0 12.3 15 14+Thcnnustalk: Mi..ing Valve $8 $241 $409 1.34 0.22 1.56 2.93 1.87 1.54 3.10 0.944 36.0 12.3 16 15+lmprovedFill Control $17 $257 $438 1.21 0.22 1.43 2.93 2.05 1.54 2.97 0.987 34.2 11.7 17 Auto·FiII Control '( 10) 18 Adaptive Control (10) 19 O+Added Insulation $49 $274 $466 1.57 0.22 1.79 2.94 1.64 1.54 3.33 0.882 38.9 13.2 20 O+lncrease Motor Efficiel)cy $10 $235 $399 1.57 0.20 1.77 2.93 1.65 1.54 3.31 0.883 38.9 13.3 21 O'+Suds Saving (9) $28 $253 $430 1.63 0.22 1.85 2.91 1.57 1.54 3.39 0.859 35.6 12.2 22 O+Direct Drive Motor $71 $296 $503 1.57 0.09 1.66 2.94 1.77 1.54 3.20 0.919 38.9 13.2 Footnotes listed on separate page

7/9/95 . c:\c1ean3\clthwash\),pdsht\AHAM 15B2

### Clothes Washer -- Standard Proposed AHAM Test Procedure with RMC Addec. Cummulative Payback Analysis Electric Dryer Gas Dryer Combined Dryers Design Design Option Electric W.H. Gas W.H. Combined Electric W.H Gas W.H. Combined Electric. Gas Combined Level Payback Payback Elect.& Gas Payback Payback Elect.& Gas W.H. W.H. W.H. Cumm. Cumm. Payback Cumm. Cumm. Payback Payback Payback Payback Payback

.__ ____ -__ years (3) years (3) years (3) years (3) years (3) years (3) years (3) years (3) years (3) 0 Baseline (vert. axis) I 0+RMC= 50% 1.8 1.8 1.8 6.1 6. 6.1 2.1 2.1 2.1 2 0+RMC= 40% 1.8 1.8 1.8 6.4 6.4 6.4 2.2 2.2 2.2 3 2+hnnoslatic Mixing Valve 2.1 2.4 2.3 4.9 7.0 5.8 2.5 2.9 2.7 4 3+lmproved Fill Control 2.6 3.2 2.9 4.4 6.6 5.4 2.9 3.6 3.2 5 4+RMC= 35% 3.4 4.1 3.8 6.3 9.2 7.7 3.9 4.8 4.3 6 4+RMC = 30% 33 4.0 3.7 6.7 9.6 8.0 3.8 4.6 4.2 0 Baseline (vert. axis) 7 Horizontal Axis Design 3.7 6.7 4.9 3.7 6.7 4.9 3.7 6.7 4.9 8 Horz. Axis w/recirculation 3.3 5.7 4.3 3.3 5.7 4.3 3.3 5.7 4.3 9 8+RMC = 50% 3.1 4.8 3.9 3.5 5.8 4.4 3.2 5.0 4.0 10 H+RMC =40%
. 4.4 3.3.6 5 4.3.1 4 3.8 1I 8+RMC = 35% 3.3 4.8 4.0 4.2 6.7 5.3 3.5 5.1 4.2 12 8+RMC= 30% 33 4.7 3.9 4.3 6.9 5.4 3.5 5.1 4.2 13 3+-Thennostaic Mixing Valve 3.4 4.9 4 4.4 2 5.6 3.6 5 4.44 0 Baseline (vert. axis) 14 O+Tighter tub tolerance 2.0 2.9 2.4 2.0 2.9 2.4 2.0 2.9 2.4 15 14+Thcnnostatic Mixing Valve 2.6 4.5 3.4 2.6 4.5 3.4 2.6 45 3.4 16 15+lmproved FillControl 3.4 5.9 4.4 3.4 5.9 4.4 3.4 5.9 4.4 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 0+Added Insulation NA NA NA 20 0+lncrease Motor Efficiency 27.3 27.3 27.3 27.3 27. 3 27.3 273 273 27.3 27.3 21 0+SudsSaving (9) 23.7 15.8 18.5 23.7 15.8 18.5 23.7 15.8 18.5 22 0+Direct Drive Motor 30.4 4 4 4 4 30.4 30.4 304 30.4 30.4 30.4 .4



### 7/9/95 c:\clean3\clthwash\spdsht\AHAM I5B2 2 7/9/95 

## Clothes Washer·· Standard ProPQsed AHAM Test Procedure with RMC**Adder~** 

### CummulativePaybackAnalysis Electric Dryer Design Design Option Electric W.H. GasW.H. Combined**~Iectric** W.H Level' Payback Payback Elect.&Gas Payback Cumm. Cumm. Payback Cumm. years (3) years (3) years (3) years (3) 0**Ba~line** (ven. axis) I O+RMC = 50% 1.8 1.8 1.8 6.1 2 0+RMC=40% 1.8 1.8 1.8 6.4 3 2+ Thennoslatic Mixing VaI.e 1.1 2.4 2.3 4.9 4 3+lmproved Fill Control 1.6 3.2 2.9 4.4 5 4+RMC= 35% 3.4 4.1 3.8 6.3 6 4+RMC=30% 3.3 4.0 3.7 6.7 0**Ba~line** (vert. axis) 7 Horiwnlal Axis Design 3.7 6.7 4.9 3.7 S Horz. Axis w/recircul:ition 3.3 5.7 4.3 3.3 9 R+RMC = 50% 3.1 4.R 3.9 3.5 III K+RMC =4()% 3.0 4.4 3.6 3.6 II 8+RMC= 35% 3.3 4.S 4.0 4.2 12 S+RMC= 30% 3.3 4.7 3.9 4.3 13 I3+ThennOSlatic Mixing Valve 3.4 4.9 4.1 4.4 0**Ba~line** (ven. axis) 14 0+Tightertub tolerance 1.0 2.9 2.4 2.0 15 14+ThennOSlatic Mi.ing Valve 1.6 4.5 3.4 2.6 16 15+lmproved Fill Control 3.4 5.9 4.4 3.4 17 Auto-Fill Control (10) IS Adaptive Control (10) 19 O+Added Insulation NA NA NA 20 O+lncrease MotorEfficiency 27.3 27.3 27.3 

## , 27.3 21 O+Suds Saving (9) 23.7 15.S 18.5 23.7 22 O+Direct [)rive Motor 30.4 30.4 30.4 30.4 

### Gas Dryer GasW.H. Payback Cumm. years (3)

6.1 6.4 7.0 6.6 9.2 9.6

6.7 5.7 5.S 5.S 6.7 6.9 7.2
2.9 4.5 5.9

27.3 15.S 30.4



### c:\c1ean3\c1thwash\spdsht\AHAM15B2 Combined Dryers Combined . Electric. Gas Combined**Elect.&Ga~** W.H. W.H. W.H. Payback Payback Payback Payback years (3) years (3) years (3) years (3)

6.1 2.1 2.1 2.1 6.4 2.2 2.2 2.2 5.8 2.5 2.9 2.7 5.4 2.9 3.6 3.2 7.7 3.9 4.S 4.3 8.0 3.S 4.6 4.2
4.9 3.7 6.7 4.9 4.3 3,3 5.7 4.3 4.4 3.2 5.0 4.0 4.5 3.1 4.7 3.8 5.3 3.5 5.1 4.2 5.4 3.5 5.1 4.2 5.6 3.6 5.3 4.4
2.4 2.0 2.9 2.4 3.4 2.6 4.5 3.4 4.4 3.4 5.9 4.4

17.3 27.3 27.3 27.3 IS.5 23.7 15.8 IS.5 30.4 30.4 30.4 30.4



### 2

### Clothes Washer-- Standard 

### Proposed AHAM Test Procedure with RMC Added Annual Operating Costs Without Dryer Dryer only Elect. Dryer Gas Dryer Combined Dryers Design Design Option Hot Water Energy Machine Water Total Total Elect. Gas Combined Total TotallTotal Total Level Electric Gas Energy Use Electric Gas Combined Dryer Dryer Dryer Electric Gas Combined Electric Gas Combined Elect. Gas Combined $/y /y S yr yr W,H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. --------- ____ $/yr $/yr $/yr $/ yr $/yr Syr S /yr S/yr $/yr $/yr S/yr S$yr $/ yr S$yr 0 Baseline (vert. axis) $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 $142 $112 $126 $110 $81 $94 $134 $105 $118 -I O+RMC = 50% $47 $17 $7 $43 $97 $67 $80 $36 $11 $30 $133 $103 $116 $107 $78 $91 126 97 $110

2 0+RMC =40% $47 $17 $7 $43 $97 $67 $81 $28 $9 $23 $125 $96 $109 $105 $76 $89 $120 $91 $104 3 2+1ennomricj Mixing Valve $42 $15 $7 $43 $92 $66 $78 $28 $9 $23 $121 $94 $106 $101 $74- $86 $116 $89 $101 4 3+lmproved Fill Control $38 $14 $7 $40 $85 $61 $72 $28 $9 $23 $113 $89 $100 $94 $70 $80 $108 $84 $95 5 4+RMC= 35% $38 $14 $7 $40 $85 $61 $72 $24 $7 $20 $110 $86 $96 $93 $69 $79 $105 $81 $92 6 4+RMC =30% $38 $14 $8 $40 $86 $62 $73 $20 $6 $17 $107 $83 $93 $92 $68 $79 $103 $79 $90 0 Baseline (vert. axis) $47 $17 $7 $43 $96 $67 $80 $46 -$14 $38 $142 $112 126 $110 $81 $94 134 $105 $118 7 Horizontal Axis Design $14 $5 $7 $29 $50 $41 $45 546 $14 $38 $96 $87 $91 $64 $55 $59 $88 $79 $83 8 Horz. Axisw/recirculation $11 $4 $8 · $24 $43 $36 $39 $46 $14 $38 $88 $82 $85 $57 $50 $53 $81 $74 $77 9 8+RMC= 50% $11 $4 $8 $24 $43 $36 $39 $36 $11 $30 $79 $72 $75 $54 $47 $50 $73 $66 $69 10 8+RMC = 40% $11 $4 $8 $24 $43 $36 $40 $28 $9 $23 $72 $65 $68 $52 $45 $48 $67 $60 $63 11 8+RMC= 35% $11 $4 $8 $24 $44 $37 $40 $24 $7 $20 $68 $61 $64 $51 $44 $47 $64 $57 $60 12 8+RMC = 30% $11 $4 $9 $24 $45 $38 $41 $20 $6 $17 $65 $58 $61 $51 $44 $47 $61 $54 $58 13 13+Thermosnt MixingValve $10 $4 $9 $24 $44 $37 $40 $20 $6 $17 $64 $58 $60 $50 $43 $46 $60 $54 $57 0 Baseline(vert. axis)
- $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 $142 $112 $126 $110 $81 $94 $134 $105 $118 14 O+Tightertub tolerance $44 $16 $7 $40 $90 $63 $75 $46 $14 $38 $136 $108 $121 $104 $76 $89 $128 $100 $113 15 14+Thrmostatic Mixing Valve $40 $15 $7 $40 $86 $61 $72 $46 $14 $38 $132 $107 $118 $100 $75 $86 $124 $99 $110 16 15+lmproved Fill Control $36 $13 $7 $38 $80 $58 $68 $4 14 38 6 $103 $113 $94 $71 $82 $118 $95 $105 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 0+Added Insulation $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 $142 $112 $126 $110 $81 $94 $134 $105 $118 20 +lncrease Motor Efficiency $47 $17 $6 $43 $96 $66 $80 $46 $14 $38 $141 $112 $125 $109 $80 $93 $133 $104 $117 21 O+Suds Saving (9) $48 $18 $7 $40 $94 $64 $78 $46 $14 $38 $140 $109 $123 $108 $78 $91 $132 $102 $115 22 0+Direct Drive-Motor $47 $17 $3 $43 $92 $63 $76 $46 $14 $38 $138 $108 $122 $106 $77 $90 $130 $101 $114



### 7/9/95 c:\clean3\clthwash\spdsht\AHAMI 5B2 3 

## t;lothes Washer
-- Standard ProposedAHAM Test Procedure with RMC Added Annual OperatingCosts WithoutDryer Dryeronly Design Design Option Hot WaterEnergy Machine Water Total Total Elect. Gas Combined Level Electric Gas Energy Use Electric Gas Combined Dryer Dryer Dryer $Iyr $Iyr $Iyr $Iyr W,H. W.H. W.H. $Iyr $Iyr $Iyr $Iyr $Iyr $Iyr 0 Baseline (ven. axis) $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 -../1 0+RMC=50% $47 $17 $7 $43 $97 $67 $80 $36 $11 $30

2 O+RMC =40% $47 $17 $7 $43 $97 $67 $81 $28 $9 $23 J 2 +ThennU!;tabc Mhting Valve $42 $15 $7 $43 $92 $66 $78 $28 $9 $23 4 3+lmproved Fill Control $38 $14 $7 $40 $85 $61 $72 $28 $9 $23 5 4+RMC

## = 35% $38 $14 $7 $40 $85 $61 $72 $24 $7 $20 6 4+RMC=30% $38 $14 $8 $40 $86 $62 $73 $20 $6 $17 0 Baseline (ven. axis) $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 7 Horizontal Axis Design $14 $5 $7 $29 $50 $41 $45 $46 $14 $38 8 Hon. Axis.w/recirculation $11 $4 $8 $24 $43 $36 $39 $46 $14 $38 9 8+RMC=50% $11 $4 $8 $24 $43 $36 $39 $36 $11 $30 10 8+RMC =40% $11 $4, $8 $24 $43 $36 $40 $28 $9 $23 II 8+RMC=35% $11 $4 $8 $24 $44 $37 $40 $24 $7 $20 12 8+RMC =30% $11 $4 $9 $24 $4,5 $38 $41 $20 $6 $17 13 I3+Thermostatic Mixing Valve $10 $4 $9 $24 $44 $37 $40 $20 $6 $17 0 Baseline(ven. axis) $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 14 0+Tightertub tolerance $44 $16 $7 $40 $90 $63 $75 $46 $14 $38 15 I4-<Thermostatic Mixing Valve $40 $15 $7 $40 $86 $61 $72 $46 $14 $38 16 15+lmprovedFill Control $36 $13 $7 $38 $80 $58 $68 $46 $14 $38 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 O+Added Insulation $47 $17 $7 $43 $96 $67 $80 $46 $14 $38 20 O+lncrea<;e MOIorEfficiency $47 $17 $6 $43 $96 $66 $80 $46 $14 $38 21 O+Suds Saving (9) $48 $18 $7 $40 $94 $64 $78 $46 $14 $38 22 O+Direct Drive Motor $47 $17 $3 $43 $92 $63 $76 $46 $14 $38



### 7/9/95 

### c:\c1ean3\c1thwash\spdsht\AHAM15B2 

# .. 

# .

Elect. Dryer Gas Dryer Combined Dryers Total Total Total Total 

# -**E1~tric** Gas Combined Electric Gas Combined Elect. Gas Combined W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. W.H. $Iyr $Iyr $Iyr $Iyr $Iyr $Iyr $Iyr $Iyr $Iyr $142 $112 $126 $110 $81 $94 $134 $105 $118 $\33 $103 $116 $107 $78 $91 $126 $97 $110 $125 $96 $109 $105 $76 $89 $120 $91 $104 $121 $94 $106 $101 $74· $86 $116 $89 $101 $113 $89 $100 $94 $70 $80 $108 $84 $95 $110 $86 $96 $93 $69 $79 $105 $81 $92 $107 $83 $93 $92 $68 $79 $103 $79 $90 $142 $112 $126 $110 $81 $94 $134 $105 $118 $96 $87 $91 $64 $55 $59 $88 $79 $83 $88 $82 $85 $57 $50 $53 $81 $74 . $77 $79 $72 $75 $54 $47 $50 $73 $66 $69 $72 $65 $68 $52 $45 $48 $67 $60 $63 $68 $61 $64 $51 $44 $47 $64 $57 $60 $65 $58 $61 $51 $44 $47 $61 $54 $58 $64 $58 $60 $50 $43 $46 $60 $54 $57 $142 $112 $126 $110 $81 $94 $\34 $105 $118 $136 $108 $121 $104 $76 $89 $128 $100 $113 $132 $107 $118 $100 $75 $86 $124 $99 $110 $126 $103 $113 $94 $71 $82 $118 $95 $105
$142 $112 $126 $110 $81 • $94 $134 $105 $118 $141 $112 $125 $109 $80 $93 $133 $104 $117 $140 $109 $123 $108 $78 $91 $132 $102 $115 $\38 $108 $122 $106 $77 $90 $130 $101 $114

### Clothes Washer -- Standard Proposed AHAM Test Procedure with RMC Added Life-Cycle Cost
Design Design Option Life Cycle Cost
-- RMC /MEF (Electric Dryer) (14) Life Cycle Cost-RMC/MEF(GasDryer) (14) Life Cycle Cost--Combined Level Electric Water Heater Gas Water Heater Electric Water Heater Gas Water Heater Water Heaters :45 %Elect.; 55% Gas Discount Rate Discount Rate Discount Rate Discount Rate Dryers: 75.1% Elect.; 24.9% Gas 2% 6% 15% 2% 6% 15% 2% 6% 15% 2% 6% 15% 2% 6% 15% 0 Baseline (vert. axis) $2.112 $1,708 $1,197 $1,753 $1,433 $1.028 $1,724 $1,411 $1.015 $1.365 $1.136 $846 $1,818 $1,483 $1,059 I 0+RMC= 50% $2,015 $1,638 $1,160 $1,657 $1,363 $992 $1,708 $1,402 $1,016 $1,349 $1,128 $847 $1,741 $1,428 $1,032 2 0+RMC=40% $1,937 $1,581 $1,131 $1,578 $1,307 $962 !1,696 $1,397 $1,018 $1,338 $1,122 $849 $1,680 $1,384 $1,010 3 2+ThennostaticMixingValve $1,898 $1,554 $1,120 $1,573 $1,305 $967 :;1,657 $1,370 $1,007 $1,332 $1,121 $854 $1,659 $1,372 $1,008 4 3+Improved Fill Control $1,837 $1,514 $1,106 $1,544 $1,290 $969 51 596 $1,330 $993 $1,304 $1,106 $855 $1,616 $1,345 $1,002 5 4+RMC=35% $1.830 $1,518 $1,123 $1,537 $1,294 $985 ',1,622 $1359 $1,025 $1.330 $1,135 $888 $1,617 $1,355 $1,023 6 4+RMC=30% $1.800 $1,497 $1,113 $1.508 $1,273 $975 $1,626 $1,364 $1,031 $1.334 $1,140 $894 $1,596 $1,341 $1,017 0 Baseline(vert. axis) $2,112 $1,708 $1,197 $1,753 $1,433 $1,028 $1.724 $1,411 $1,015 $1,365 $1,136 $846 $1,818 $1,483 $1,059 7 Horizontal Axis Design $1,720 $1,448 $1,104 $1.614 $1,367 $1.054 $1,333 $1,151 $921 $1.227 $1,070 $872 $1,565 $1,330 $1,031 8 Horz. Axis w/recirculation $1,639 $1,387 $1,068 $1,554 $1,322 $1,028 $1,251 $1,090 $886 $1,166 $1,025 $846 $1,495 $1,277 $1,001 9 8+RMC = 50% $1.542 $1,317 $1,032 $1.457 $1,252 $992 $1.235 $1,081 $887 $1,150 $1,016 $847 $1,419 $1,223 $974 10 8+RMC = 40% $1,464 $1,260 $1,003 $1,379 $1,195 $962 $1,224 $1,076 $889 $1,139 $1,011 $849 $1,357 $1,179 $952 11 8+RMC=35% $1,457 $1,264 $1,019 $1,372 $1,199 $979 $1,250 $1,105 $921 $1,165 $1,040 $881 $1,359 $1,188 $973 12 8+RMC= 30% $1,428 $1,243 $1,009 $1,343 $1,178 $969 $1,254 $1,110 $927 $1,169 $1,045 $887 $1,338 $1,174 $967 13 13+Themnostaic MixingValve $1.429 $1,247 $1.017 $1,352 $1,188 $981 $1.255 $1,114 $935 $1.178 $1,055 $899 $1,343 $1,182 $977 0 Baseline(vert. axis) $2,112 $1,708 $1,197 $1,753 $1,433 $1,028 $1,724 $1,411 $1,015 $1,365 $1,136 $846 $1,818 $1,483 $1,059 14 0+Tighter TubClearance $2,051 $1,664 $1,175 $1,714 $1,406 $1,016 $1,664 $1,367 $993 $1,326 $1,109 $834 $1,769 $1,448 $1,042 15 14+Thermostaic Mixing Valve $2,015 $1,640 $1,165 $1,709 $1,406 $1,021 $1,627 $1,343 $983 $1,322 $1,109 $839 $1,750 $1,437 $1,041 16 15+lmproved Fill Control $1.969 $1,612 $1,159 $1.694 $1,401 $1.029 $1,582 $1,314 $976 $1.307 $1,104 $847 $1,721 $1,422 $1,042 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 0+Added Insulation $2.194 $1.791 $1,280 $1,836 $1,516 $1.111 $1,807 $1,494 $1,098 $1,448 $1.219 $929 $1,901 $1,566 $1.142 20 0+lncreasc MotorEfficiency $2.120 $1,719 $1.210 $1,762 $1,444 $1,041 $1,733 $1,422 $1,027 $1,374 $1.147 $859 $1,827 $1,494 $1,072 21 0+Suds Saving (9) $2,134 $1,736 $1,233 $1,764 $1,452 $1,058 $1,747 $1,439 $1,050 $1,376 $1,155 $875 $1,834 $1,506 $1,091 22 0+Direct Drive Motor $2.184 $1,792 $1.295 $1.825 $1,517 $1,126 $1.796 $1.495 $1.112 $1.438 $1,220 $944 $1,890 $1,566 $1,157

7/9/95 c:\clean3\clthwashspdsht\AHAM 15B2 4 

## Clothes Washer·· Standard Proposed AHAM TestProcedurewith 

## RMC Added Life-Cycle Cost
Design Design Option LifeCycleCost ··RMC/MEF(Electric: Dryer) (14) Level Electric Water Heater Gas Water Heater Discount Rate Discount Rate 2% .6% 15% 2% 6% 15% 0 . Ba..eline (vert. axis) $2.112 $1,708 $1.197 $1.753 $1.433 $1.028 I O+RMC= 50% $2.015 $1,638 $1.160 $1.657 $1.363 $992 2 O+RMC =40% $1.937 $1,581 $1.131 $1.578 $1.307 $962 3 2 + ThennoslaticMixing Valve $1.898 $1,554 $1.120 $1.573 $1.305 $967 4 3+lmproved Fill Control $1.837 $1,514 $1.106 $1.544 $1.290 $969 5 4+RMC= 35% $1.830 $1,518 $1.123 $1.537 $1.294 $985 6 4+RMC';;30% $1.800 $1,497**~~** $1.113 $1.508 $1,273 $975 0 Baseline (vert. axis) S2.112 $1,708 $1.197 $1.753 $1.433 SI.028 7 Horizontal Axis Design SI.720 $1,448 SI.104 $1.614 $1.367 $1.054 8 Horz. Axis w/recirculation SI.639 $1,387 $1.068 $1.554 $1.322 SI.028 9 8+RMC=50% $1.542 $1,317 $1.032 $1.457 $1.252 $992 10 8+RMC=40% $1.464 $1,260 $1.003 $1.379 $1.195 $962 II 8+RMC=35% $1.457 $1,264 $1.019 $1.372 $1.199 $979 12 8+RMC = 30% $1.428 $1,243 $1.009 $1.343 $1.178 $969 13 13+ThennoslabcMixing Valve $1.429 $1,247 $1.017 $1.352 $1.188 $981 0 8a...eline (vert. axis) $2.112 $1,708 $1.197 $1.753 $1.433 $1.028 14 0+Tighter Tub Clearance $2.051 $1,664 $1.175 $1.714 $1.406 $1.016 15 I4+ThennoslabcMixing Valve $2.015 $1,640 $1.165 $1.709 $1,406 $1.021 16 15+lmproved Fill Control $1.969 $1,612 $1.159 $1.694 $1,401 $1,029 17 Auto-Fill Control (10) 18 Adaptive Control (10) 19 O+Added Insulation $2.194 $1.791 $l.280 $1.836 $1.516 $1.1 II 20 O+lncreao;c Motor Efficiency S2.120 $1.719 $1.210 $1.762 $1,444 $1.041 21 O+Suds Saving (9) S2.134 $1.736 $1.233 $1.764 $1,452 $1.058 22 O+Direct Drive Motor $2.184 $1,792 $1.295 $1.825 $1,517 $1,126 Life CycleCost-RMC/MEF(GasDryer) (14) Electric Water Heater Gas Water Heater Discount Rate Discount Rate 2% 6% 15% 2% 6% 15% $1.724 $1,411 $1.015 $1.365 $1.136 $846**~1.708** $1,402 $1.016 $1.349 $1.128 $847 .1.696 $1,397 $1.0!8 $1.338 $1.122 $849 ;1.657 $1,370 $1.007 $1.332 $1,121 $854 )1596 $1,330 $993 $1.304 $1.106 $855 :';1.622 $1,359 $1.025 $1.330 .$1,135 $888 $1.626 $1,364 $1,031 $1,334 $1.140 $894 $1.724 $1,411 SI.015 SI,365 $1.136 $846 $1.333 $1,151 $921 SI.227 $1.070 $872 $1.251 $1,090 $886 $1.166 $1,Q25 $846 $1.235 $1,081 $887 $1.150 $1.016 $847 $1.224 $1,076 $889 $1.139 $1,011 $849 $1.250 $1,105 $921 $1.165 $1.040 $881 $1.254 $1,110 $927 $1.169 $1.045 $887 $1.255 $1,114 $935 $1.178 $1.055 $899 $1.724 $1,411 $1.015 $1.365 $1.136 $846 $1.664 $1,367 $993 $1.326 $1.109 $834 $1.627 $1,343 $983 $1.322 SI.109 S839 $1.582 $1,314 $976 $1.307 $1.104 $847

$1.807 $1,494 $1.098 $1.448 $1.219 $929 $1,733 $1,422 $1.027 $1.374 $1.147 $859 $1,747 $1,439 $1.050 $1.376 . $1.155 $875 $1.796 $1.495 $1.112 $1.438 $1.220 $944

7/l)/l)) c:\c1ean3\clthwash\.<;pdsht\AHAM 1582 " 

# .

. Life Cycle .Cost •• Combined Water Heaters :45 % Elect.; 55%**Ga.~**

Dryers: 75.1% Elect.; 24.9%**Ga~** 2% 6% 15% $1.818 $1,483 $1.059 $1.741 $1,428 $1.032 $1.680 $1,384 . $1.010 $1,659 $1,372 $1.008 $1.616 $1,345 $1.002 $1.617 $1,355 $1.023 $1.596 SI,341 SI.OI7 $1.818 $1,483 $1.059 $1.565 $1,330 $1.031 $1,495 $1,277 $1.001 $1,419 $1,223 $974 $1.357 $1,179 $952 $1.359 $1,188 $973 $1.338 $1,174 $967 $1.343 $1,182 $977 $1.818 $1,483 $1.059 $1.769 $1,448 $1.042 $1.750 $1,437 $1.041 $1.721 $1,422 $1,042

$1.901 $1.566 $1.142 $1.827 $1,494 $1.072 $1.834 $1.506 $1.091 $1.890 $1.566 SI.157

4FOOTNOTES (I) Data based on original data submitted by AHAM (2) Markup = 1.7 (3) Elect. (94$/kWh) = 0.0838 Gas (94$/MBTU) = 6.03 Water Cost ($/1000 gal.) = 2.84 Water Heater Efficiency: Elect. = 1.00;Gas =0.75 Fuel Price Multiplier: Elect. = 0.90; Gas = 1.01 Fraction Water Heaters: Elect. = 0.45; Gas = 0.55 Fraction Dryers: Elect. = 0.751; Gas = 0.249 (4) Baseline data assumed to be forvertical axis machine (5) When options are combined, adjustments are made to avoid double counting savings (6) The same RMC cost data was used for vertical and horizontal axis machines (7) MEFbased onAHAM final test procedure withDUF revised from 0.83 to 0.844 (8) Some design options were notcombined with others due to high payback (9) Sud Saving notcombined with otheroptions; limited use (10) Auto Fill Control and Advanced Sensor/Control may be added when data is gathered on these design options (I I) No adjustments in energy use were made for the differences in vertical and horizontal drum capacity (12) Dollar values are shown in rounded dollars, actual values as provided by AHAM are used in all calculations (13) No ldetcrgent savings are expected as water use is reduced (14) Clothes Washer Life= 14.1 years

7/9/95 c:\clean3\clthwash\spdsht\AHAM 15B2 5 FOOTNOTES (I) Databased on original data submined by AHAM (2) Markup = 1.7 (3) Elect. (94$/kWh) =0.0838 Gas (94$IMBTU)

### =6.03 WaterCost ($11000 gal.)

## = 2.84 Water Heater Efficiency: Elect. 

### =1.00; Gas =.0:75 Fuel Price Multiplier: Elect.

### = 0.90; Gas = 1.01 Fraction Water Heaters: Elect. =0.45; Gas =0.55 Fraction Dryers: Elect. =0.751; Gas =0.249 (4) Bao;eline data**a~suined** to be for vertical axis machine (5) When options are combined, adjustments are made to avoid double counting savings (6) The same RMC cost data was used for vertical and horizontal axis machines (7) MEFbased onAHAM final test procedure with DUFrevised from 0.83 to 0.844 (8) Some design options were notcombined with others due to high payback (9) Sud Saving notcombined with otheroptions; limited use (10) Auto Fill Control and Advanced Sensor/Control may be added when data is gathered on the.o;e design options (II) No adjustments in energy use were made for the differences in vertical and horizontal drum capacity (12) Dollar values are shown in rounded dollars, actual values**a~** provided by AHAM are used in all calculations (11) No (it-tergent savings nre expected**Il~** wllter use is reduced (14) Clothes**WIl~herLife=** 14.1 years

7/9/95 c:\c1ean3\c1thwash\spdsht\AHAM1582 

### 5

### StandardClothes Washer
- AHAM -- with MEF Electric Water Heater / Electric Dryer $2,200 $2,100 $2,000 $1,900 $1,800
0'B 

### $1,600 2 OI 4

$1,300

--

.9 $1,200

- i 10 11 $1,100 $1,000

$900

-- I I. I 0.800 1.000 1.200 1.400 1.600 1.800 2.000 Modified Energy Factor 6 c:\clean3\clthwash\spdsht\AHAM 15B2.xls $2,200 $2,100 $2,000 $1,900 $I,ROO



# --**~** :.. $1,700 0 Q\ 

# ... '-' 

# .. $1,600 CIJ Q U 41 $1,5()() U**~** U 

### •**~** $1,400 

# ::s $1,300 $1,200 $J, 100 $1,000

$900 0.800 1.000 

## Standard Clothes Washer ..- AHAM -- with l\tIEF Electric Water Heater/ Electric Dryer

10

1.200 1.400 1.600 Modified Energy Factor

c:\c\ean3\c\thwash\spdsht\AHAMI5B2.xls II 12



### l.SOO 2.000 

### 13**~2%** -0-6% -0-15%



### 6

### StandardClothes Washer -- AHAM -- with MEF Electric Water Heater /Gas Dryer $1,800 $1,700 $1,600 $1,500 g $1,400 0 6 -0-2% U $1,300

-- 6% 

# j -. 6% & $1,200

8 9 11 12 10 $1,000

$900 $800 I I 0.800 1.000 1.200 1.400 1.600 1.800 2.000 2.200 Modified Energy Factor c:\clean3\clthwash\spdsht\AHAM I5B2.xls 7 $1,800 $1,700 $1,600 $1,500



### .-.**~ ~**  $1,400

### ~ 0



## .... '-' 

# ... til Q $1,300 U G.I 'ti >. U



# . $1,200**~** 

# .. ...J $1,100 $1,000

$900 $800 0.800 

## Standard Clothes Washer
-- AHAM
-- with MEF Electric WaterHeater 

### I Gas Dryer

. 13 

### 8 9 11 12

# ~~---.----~~A~--------~~~~~----~~
1.000 1.200 1.400 1.600 1.800 

### 2.000 Modified Energy Factor c:\c1ean3\clthwash\spdsht\AHAM15B2.xls 2.200**~2%** 

### -0-6%**~15%**



### 7

### Standard Clothes Washer
- AHAM
- with MEF Combined Water Heaters &Combined Dryers $1,500 0 Discount Rate =6%
$1,400 $1, 1 

### ~~~~~~3 6 1,0 - \7 § $1,300 ir. ,8

$1,200 10 13

$1,100III, 3 

### 0.75 1.00 1.25 1.50 1.75 2.00 2.25 Modified Energy Factor c:\clean3\clthwash\spdsht\AHAM 15B2.xls 8 

### Standard Clothes Washer - AHAM**~** 

### with MEF CombinedWater Heaters & Combined Dryers $1,500 

# o Discount Rate

# = 6%

$1,400**~** 

# i

.... '-' 

# .. fI) Q $1,300 U**~** 

# - Col**~** U I

### ~ ..J $1,200 11 10 

### 13

$1,1000.75 1.00 1.25 1.50 1.75 2.00 2.25 Modified Energy Factor
c:\c1ean3\c1thwash\spdsht\AHAM15B2.xls 8

### Payback - Combination Water Heater & Dryer 15.0 Clothes Washer Life = 14.1years 14.0 13.0 12.0

1.0 10.0 S 9.0 I 8.0 

# &. 7.0 6.0 5.0 ""^--

### ~116 2 13 4.0 4 9 3.0 2.0

0.750 1.250 1.750 2.250 Modified Energy Factor
7/10/95 c:\clean3\clthwash\spdsht\AHAM15B2.xls 9 

### Payback - Combination Water Heater & Dryer 15.0 14.0 ClothesWasher-1ife= 14.I--'years ______________________ _ 13.0 12.0 11.0 

### 10.0


# -- r! eG**~** 

### 9.0 ;... "-'**~** U eG 

### 8.0 .t:J. ;... 

## &! 7.0 6.0 

### 5.0 7 

### 12 13 II 

### 4.0 3.n 2**2.0~--~~~~------~--r---------~~--------r-------------------~**



### 0.750 1.250 1.750 2.250 Modified Energy Factor


### 7/10/95 

### c:\c1ean3\clthwash\spdsht\AHAM15B2.xls 9

### Clothes Washer -- Standard Proposed AHAM Test Procedure with RMC Added 392 cycles/yr 

### Markup =2.0 Markup= 1.7 Markup= 1.4

________ _ ,Cost Cumm. Payback Life Cycle Cost Cost Cumm. Payback Life Cycle Cost Cost Cumm. Payback Life Cycle Cost Design Option Total Retail Electric Dryer Electric Dryer Total Retail Electric Dryer Elect. Dryer Total Retail Electric Dryer Electric Dryer Mfg. Cost Elect. Gas Elect.W.H Gas W.H Mfg. Cost Elect. Gas Elect.W.H GasW.H. Mfg. Cost Elect. Gas lec.W.H Gas W.H Cost W.H. W.H. D. Rate D. Rate Cost W.H. W.H. D. Rate D. Rate Cost W.H. W.H. D. Rate D.Rate

- _---__ - -$ $ $ years years 6% 6% $ y years years 6% 6% $ $ years years 6% 6% 0 Baseline(vert.axis) $192 $383 $1,708 $1,433 $225 $383 $1,708 $1,433 $274 $383 $1,708 $1,433 I +RMC=50% $201 $402 2.1 2.1 $1,641 $1,366 $235 $399 1.8 1.8 $1,638 $1,363 $283 $396 1.5 1.5 $1,635 $1,360 2 +RMC=40% $210 $419 2.1 2.1 $1,587 $1,312 $243 $414 1.8 1.8 $1,581 $1,307 $292 $408 1.5 1.5 $1,576 $1,301 3 2+ThermoMixingValve $218 $436 2.5 2.8 $1,562 $1,313 $252 $428 2.1 2.4 $1,554 $1,305 $300 $420 1.7 2.0 $1,547 $1,298 4 3+lmprovedFillControl $235 $469 3.0 3.7 $1,527 $1,303 $268 $4';6 2.6 3.2 $1,514 $1,290 $317 $443 2.1 2.6 $1,501 $1,277 5 4+RMC=35% $257 $513 4.0 4.9 $1,537 $1,313 $290 $4'4 3.4 4.1 $1,518 $1,294 $339 $474 2.8 3.4 $1,498 $1,274 6 4+RMC=30% $261 $522 3.9 4.7 $1.518 $1,294 $295 $5t01 3.3 4.0 $1,497. $1,273 $343 $480 2.8 3.3 $1,476 $1,252 0 Baseline(vert. axis) $192 $383 $1,708 $1,433 $225 $383 $1,708 $1,433 $274 $383 $1,708 $1,433 7 HorizontalAxis Design $293 $586 4.4 7.9 $1,478 $1,397 $327 $555 3.7 6.7 $1,448 $1,367 $375 $525 3.1 5.6 $1,418 $1,337 8 Horz.Axisw/recirculation $296 $592 3.9 6.8 $1,418 $1,353 $330 $561 3.3 5.7 $1,387 $1,322 $378 $529 2.7 4.7 $1,356 $1,291 9 8+RMC=50% $306 $611 3.6 5.7 $1,351 $1,286 $339 $577 3.1 4.8 $1,317 $1,252 $388 $543 2.6 4.0 $1,283 $1,218 10 8+RMC=40% $314 $628 3.5 5.1 $1,297 $1,232 $348 $592 3.0 4.4 $1,260 $1,195 $396 $555 2.4 3.6 $1,224 $1,158 1 8+RMC = 35% $336 $672 3.9 5.6 $1,307 $1,242 $370 $629 3.3 4.8 $1,264 $1,199 $418 $585 2.7 3.9 $1,220 $1,155 12 +RMC=30% $341 $681 3.9 5.5 $1,288 $1,223 $374 $636 3.3 4.7 $1,243 $1,178 $423 $592 2.7 3.8 $1,198 $1,133 13 13+Thermo Mixing Valve $349 $697 4.0 5.7 $1,294 S1,235 382 $6 3.4 4.9 $i,247 51.188 $431 $603 2.8 4.0 $1,200 $1,141 0 Baseline (vert. axis) $192 $383 $1,708 $1,433 $225 $383 $1,708 $1,433 $274 $383 $1,708 $1,433 14 O+TighterTubClearance $199 $397 2.4 3.4 $1,667 $1,408 $232 $395 2.0 2.9 $1,664 $1,406 $281 $393 1.7 2.4 $1,662 $1,404 15 14+Thermo Mixing Valve $207 $414 3.0 5.3 $1,644 $1,410 $241 $409 2.6 4.5 $1,640 $1,406 $289 $404 2.1 3.7 $1,635 $1,401 16 15+Improved FillControl $224 $447 4.0 6.9 $1,621 $1,410 $257 $438 3.4 5.9 $1,612 $1,401 $306 $428 2.8 4.8 $1,602 $1,391 17 Auto-Fill Control 18 Adaptive Control 19 O+Added Insulation $240 $481 NA NA $1,806 $1,531 $274 $466 NA NA $1,791 $1,516 $322 $451 NA NA $1,776 $1,501 20 0+Increase MotorEff. $201 $402 32.2 32.2 $1,722 $1,447 $235 $399 27.3 27.3 $1,719 $1,444 $283 $396 22.5 22.5 $1,716 $1,441 21 0+Suds Saving $219 $438 27.8 18.5 $1,745 $1,460 $253 $430 23.7 15.8 $1,736 $1,452 $301 $422 19.5 13.0 $1,728 $1,444 22 0+DirectDrive Motor $262 $525 35.8 35.8 $1,813 $1,538 $296 $503 30.4 30.4 $1,792 $1,517 $344 $482 25.0 25.0 $1,770 $1,495



### c:\clean3\clthwash\spdsht\AHAM 15bc.xls 7/10/95 10

.... 10 

# .. " 

# -
Clothes Washer
-- Standard Proposed AHAM Test Procedure with RMCAdded 392 cycleslyr 

## Markup

## =2.0 Markup

## = 1.7 Markup

## = 1.4 Cost Cumm.Payback LifeCycle Cost Cost Cumm.Payback Life Cycle Cost Cost Curnm. Payback Life Cycle Cost Design Option Total Retail Electric Dryer Electric Dryer Total Retail Electric Dryer Elect. Dryer Total Retail Electric Dryer Electric Dryer Mfg. Cost Elect. Gas**~lect.W.H** Gas W,H Mfg, Cost Elect. Gas EJect.W.H GasW,H. Mfg, Cost Elect. Gas !Elec. W.H Gas W.H Cost W.H. W.H. D. Rate D. Rate Cost W,H. W.H. D. Rate D. Rate Cost W.H. W.H. D. Rate D. Rate

$ $ years years 6% 6% $ $ years years 6% 6% $ $ years years 6% 6% 0 Baseline (ven. axis) $192 $383 $1,708 $1,433 $225 $383 $1,708 $1,433 $274 $383 $1,708 $1,433 1 O+RMC = 50% $201 $402 2.1 2.1 $1,641 $1,366 $235 $399 1.8 t.8 $1,638 $1,363 $283 $396 1.5 1.5 $1.635 $1.360 2 0+RMC=40% $210 $419 2.1 2.1 $1,587 $1,312 $243 $414 1.8 1.8 $1,581 $1,307 $292 $408 1.5 1.5 $1,576 $1,301 3 2 + Thermo Mixing Valve $218 $436 2.5 2;8 $1,562 $1,313 $252 $4::8 2.1 2.4 $1,554 . $1,305 $300 $420 1.7 2.0 $1.547 $1,298 4 3+lmprovedFill Control $235 $469 3.0 3.7 $1,527 $1,303 $268 $4:;6 2.6 3.2 $1,514 $1,290 $317 $443 2.1 2.6 $1,501 $1,277 5 4+RMC=35% $257 $513 4.0 4.9 $1.537 $1,313 $290 $4(.4 3.4 4.1 $1,518 $1,294 $339 $474 2.8 3.4 $1,498 $1,274 6 4+RMC=30% $261 $522 3.9 4.7 $1,518 $1,294 $295 $501 3.3 4.0 $1,497 $1,273 $343 $480 2.8 3.3 $1,476 $1,252 0 Baseline (ven. axis) $192 $383 $1,708 $1,433 $225 $3};3 $1,708 $1,433 $274 $383 $1.708 $1,433 7 Horizontal Axis Design $293 $586 4.4 7.9 $1,478 $1,397 $327 $555 3.7 6.7 $1,448 $1,367 $375 $525 3.1 5.6 $1,418 $1,337 8 Horz. Axis w/recircu1ation $296 $592 3.9 6.8 $1,418 $1,353 $330 $561 3.3 5.7 $1,387 $1,322 $378 $529 2.7 4.7 $1,356 $1,291 9 8+RMC=50% $306 $611 3.6 5.7 $1,351 $1,286 $339 $577 3.1 4.8 $1,317 $1,252 $388 $543 2.6 4.0 $1,283 $1,218 10 8+RMC=40% $314 $628 3.5 5.1 $1,297 $1,232 $348 $592 3.0 4.4 $1,260 $1,195 $396 $555 2.4 3.6 $1,224 $1.158 11 8+RMC=35% $336 $672 3;9 5.6 $1,307 $1,242 $370 $629 3.3 4.8 $1,264 $1,199 $418 $585 2.7 3.9 $1.220 $1,155 12 8+RMC =30% $341 $681 3.9 5.5 $1,288 $1,223 $374 $636 3.3 4.7 $1,243 $1,178 $423 $592 2.7 3.8 $1,198 $1,133 13 13+Thermo Mixing Valve $349 $697 4.0 5.7 $1,294 $1,235 $382 $650 3.4 4.9 $i,247 $1,188 $431 $603 2.8 4.0 $1,200 $1,141 0 Baseline (ven. axis) $192 $383 $1,708 $1,433 $225 $383 $1,708 $1,433 $274 $383 $1,708 $1,433 14 0+TighterTubClearance $199 $397 2.4 3.4 $1,667 $1,408 $232 $395 2.0 2.9 $1,664 $1,406 $281 $393 1.7 2.4 $1.662 $1,404 15 14+Thermo Mixing Valve $207 $414 3.0 5.3 $1,644 $1.410 $241 $409 2.6 4.5 $1,640 $1,406 $289 $404 2.1 3.7 $1.635 $1.401 16 15+lmproved Fill Control $224 $447 4.0 6.9 $1.621 $1.410 $257 $438 3.4 5.9 $1,612 $1.401 $306 $428 2.8 4.11 $1.602 $1.391 17 Auto-FilI Control 18 Adaptive Control 19 O+Added Insulation $240 $481 NA NA $1,806 $1,531 $274 $466 NA NA $1,791 $1,516 $322 $451 NA NA $1.776 $1,501 20 O+Increase MolorEff. $201 $402 32.2 32.2 $1,722 $1,447 $235 $399 27.3 27.3 $1,719 $1.444 $283 $396 22.5 22.5 $1,716 $1,441 21 O+Suds Saving $219 $438 27.8 18.5 $1,745 $1,460 $253 $430 23.7 15.8 $1,736 $1,452 $301 $422 19.5 13.0 $1,728 $1,444 22 O+Direct Drive MOlor $262 $525 35.8 35.8 $1,813 $1,538 $296 $503 30.4 30.4 $1.792 $1,517 $344 $482 25.0 25.0 $1,770 $1,495

c:\c1ean3\clthwash\spdsht\AHAM15bc.xls 7/10/95 

### 10

# Overview * Data Gathering
* Initial Engineering Analysis Completed Early June, 1995 * Request for more data
* Site Visits
* Change in Analysis -- adjusted analysis ofAHAM with RMC


# * New data sent by AHAM as requested This datawillbe incorporated into an updated Engineering Analysis
* Workshop

ViewI

I 

## • Data Gathering

• Initial Engineering Analysis Completed EarlyJune, 1995

• Request for more data



## • Site Visits f 

# Overview

• ChangeinAnalysis
-- adjusted analysis ofAHAM with 

## RMC

• New data sent

# 9Y AHAM as requested This datawillbe**incorporate~**

## into an updatedEngineering Analysis

• Workshop

Viewl

# Data Gathering * Data questionnaire was sent to AHAM requesting cost and energy data on various design options.
o 

## Data was provided by AHAM based on two test procedures: Existing DOE test procedure Proposed AHAM (revision 6) test procedure Neither ofthese test procedures account for the additional energy required to dry the clothes after a spin cycle. AHAM data did include data on energy that could be saved due to RMC design options.



# Initial Analysis LBL analyzed AHAM data both with and without dryer energy included. The data was analyzed and presented four ways: Existing DOE Test Procedure, with EF,,416 cycles/yr 

# Existing DOE Test Procedure, with MEF fromDOE proposed test procedure, 416 cycles/yr ° AHAM proposed test procedure revision 6, with EF, 392 cycles/yr AHAM proposed testprocedure, with modified DOE MEF, 392 cycles/yr View 1 

## •


# • ( 

# Data Gatheri.ng Dataquestionnaire was sent to AHAM requesting cost and energy data on various design options. Datawas providedby AHAM based on two test procedures: Existing 

# DOE test procedure Proposed AHAM (revision 6) test procedure Neither ofthese testprocedures account for the additional energy required to 

## dry the clothes after a spin cycle. AHAM data did include data on energy that couldbe saved due to RMC design options.


# InitialAnalysis
LBL analyzedAHAMdataboth with and withoutdryerenergy included. The datawas analyzedandpresentedfour ways:

o 

## Existing 

## DOE

# TestProcedure, with EFl , 

## 416_cycles/yr

o 

## Existing 

## DOE

# TestProcedure, withMEFfrom

# DOEproposed test procedure, 416 cycles/yr


# • AHAMproposedtestprocedure revision 6, with EF, 392cycles/yr

• ADAM

# proposedtestprocedure, with 

# modified DOE MEF, 392 cycles/yr
Viewl

# Changes in Analysis Since the Initial Engineering Analysis some adjustments have been made to the methodology. Currently these changes have oniv been made for the case of AHAM with dryer energy accounted for. Changed DUF from 0.80 to 0.844 (AHAM test procedure task force has 0.83) From P&G public docket comment no. 32 Changed hot water inlet temperature from 130°F to 135°F Previous water temperature difference = (130
- 60) = 70°F New water temperature difference = (135
- 60) = 75°F 

# Changed 'Tighter Tub Tolerance" to 'Tighter Tub Clearance" * Split offthe design option 'Tighter Tub Clearance" from any combination with a RMC option (basedon incompatibility ofthese two options) * Added payback and life-cycle cost assuming gas dryers as well as electric dryers 

# * Changed manufacturer retail price-markup to 1.7 * Analyzed and compared analyses assuming different markups

· Other minor math corrections involving consistency in calculations

View 1 

# Changes in Analysis Since the Initial Engineering Analysis some adjustments have been made to the methodology. Currently these changes have oniy been made for the case ofAHAM with dryer energy accounted fOf.

• Changed DUFfrom 0.80 to 0.844 (AHAM test procedure task force has,' 

## 0.83) Prom P&G public docket commentno. 32

• Changed hotwaterinlettemperature from 1300

## P to 135°F Previous water temperature difference 

# = (130
- 60) 

# =700

## P New·watertemperature difference

# =(135
- 60)

# = 75°P • Changed ''TighterTub Tolerance" to ''TighterTub Clearance"

• Splitoffthe design option "TighterTubClearance" from any combination with a RMCoption (basedon incompatibility ofthese two options) • Addedpaybackand life-cycle costassuming gas 

## dryers as well as electric dryers

• Changed manufacturerretail price-markup to 1.7

• Analyzed and compared analyses assuming different markups.

• Otherminormath corrections involving consistencyin calculations

Viewl

# Future Analysis Additional information on design options and design option combinations was requested from AHAM. This data hasjust been received (July 7. 1995) and will be used in future analysis. Additional data on the following was sent: * Improved Fill Control * Horizontal Axis Design Advanced Controls, SoilLoad Sensor

e 

## Automatic Fill Control * Horizontal with 50% RMC 

# * Horizontal with 40% RMC * Horizontal with Automatic Fill Control Vertical Axis, Auto Fill Control, Thermostatically Controlled Mixing Valves, 50% RMC Vertical Axis, Auto Fill Control, Thermostatically Controlled Mixing 

# Valves, 40% RMC
View3 

# Future Analvsis '" 

## Additional information on design options and design option combinations was requested from AHAM. This datahasjust been received (July 7. 1995) and 

## will be used in future analysis. 

# . Additional data on the following was sent:

• Improved Fill Control

• Horizontal Axis Design

• Advanced Controls, Soil LoadSensor Automatic Fill Control

• Horizontal with 50% 

## RMC

• Horizontal with 40% 

## RMC

• Horizontal withAutomatic Fill Control

o 

## Vertical Axis, Auto Fill Control,Thennostatically ControlledMixing

. Valves,

# 500/0 RMC

• Vertical Axis, Auto Fill Control, Thennostatically ControlledMixing Valves, 

## 40% RMC

View3

# Starting Parameters -- Engineering Analysis Cost Data Cost data for design options was provided by AHAM Incremental cost is used where appropriate. 

# Markup Markup = 1.7 (manufacturer's cost x 1.7 = retail price) Calculated from average retail price from marketing survey ($383) and average manufacturing cost ($230.40). Manufacturing cost is based on AHAM industry average sales ($299.40) and gross margin (23%) fromADL Aug. 1991 report to AHAM. Calculated markup rounded up from 1.66 to 1.7. Markup of 1.7 yields manufacturer's cost of$225. 

# Cycles per year: DOE existing testprocedure: 416 DOE proposed testprocedure: 392 Fuel Prices: Based on AnnualEnergy Outlookpublished byEnergy Information Agency (EIA). Prices are based onprojected prices inthe year 2000, in 1994 dollars. Electricity Price = $0.0838/kWh Gas Price = $6.03/MBTU


# WaterandSewage Cost: Prices from the 1994 Ernst & Young database were weighted for population by Al Dietemann ofSeattle Water Department. Prices have notbeen adjusted forfuture predicted price increases. Water/Sewage Disposal Cost= $2.84/kgal.

View4 ! 

# Starting Parameters
-- EngineeringAnalysis Cost Data Cost data for design options was provided by AHAM Incremental costis used where appropriate. . 

## Markup Markup

# =1.7 (manufacturer's costx 1.7

# = retail price) Calculatedfrom average retail price from marketing survey ($383) andaverage manufacturing cost ($230.40). . Manufacturing costis based on AHAM industry average sales ($299.40) and gross margin (23%) fromADL Aug. 1991 report to 

## ARAM. Calculatedmarkup rounded up from 1.66 to 1.7. Markupof 1.7 yields manufacturer's costof$225. 

## Cycles peryear: DOEexisting testprocedure: 416 . DOEproposed testprocedure: 392 

## Fuel Prices: , BasedonAnnualEnergyOutlookpublishedbyEnergy Infonnation Agency (EIA). Prices are basedonprojectedprices inthe year2000,**i~** 

## 1994·dollars. Electricity.Price

# =$0.0838IkWh Gas Price

# =$6.03IMBTU


## WaterandSewage Cost: . Prices fromthe 1994 Ernst 

## & Young database were weightedfor population by Al DietemannofSeattleWaterDepartment. Priceshave notbeen adjustedfor future predictedprice increases. Water/Sewage Disposal Cost

# = $2.84Ikgal.

View4

# Starting Parameters -- Engineering Analysis Clothes Washer Life = 14.1 years (from previous 1990 TSD, from AHAM information)
Water Heater Efficiencies: From DOE testprocedure Electric = 1.00 Gas =0.75 Water Heater Type: The DOE Energy Factor is currently based onelectric water heater use. Where analysis was done based on actual distribution ofgas and electric water heaters, the following breakdown (provided byAHAM) was used. Fraction Electric = 0.45 Fraction Gas = 0.55 Clothes DryerType: Initial analysis was done with only electric clothes dryers. Current analysis also includes gas dryers. Fraction ofclothes dryers that are electric: 0.751 Fraction ofclothes dryers thatare gas: 0.249 These fractions were calculated from the ratio ofsales ofdryers submitted by AHAM in response to the clothes dryer questionnaire, July 1995. Remaining Moisture Content: The remaining moisture content for both DOE and AHAM analysis was based on a baseline reference of62% RMC. (See attachment fordetails)

View4 ! 

# StartingParameters
-- EngineeringAnalysis Clothes Washer Life 

## = 14.1 years (fromprevious 1990 TSD, from AHAM information)
WaterHeaterEfficiencies: FromDOE test procedure Electric 

# = 1.00 Gas 

## = 0.75 

## WaterHeaterType: The DOEEnergy Factoris currently based on**e~lectric** 

## waterheateruse. Where analysis was done based on actual distribution ofgas andelectric waterheaters, the following breakdown (providedbyAHAM) was used.

. FractionElectric 

# =0.45 Fraction Gas 

# =0.55 

## Clothes DryerType: Initiai analysis was done with only electricclothes dryers. Current analysis.also includes gas dryers. Fractionofclothes dryers thatare electric:: 

## 0.7S1 Fractionofclothes dryers thatare gas: 0.249 These fractions were calculatedfrom the ratio ofsales ofdryers submittedbyAHAM inresponse to the clothes dryerquestionnaire, July 1995. . 

## RemainingMoistureContent: Theremaining moisture contentfor both DOEandAHAM analysis was·based ona baselinereference of62% RMC. (See attachmentfor details)

View4

# Engineering Analysis General Assumptions No adjustments to energy savings for differences in drum capacity. (i.e. assume same laundry load handling capability) Adjustments to AHAM data before Design Options are Combined Set water use for all RMC design options to baseline water use. These values differed only because ofstatistical reasons due to shipment weighted averages and number ofmanufacturers responding. Set Total Gallons equal for "Reduce Thermal Mass", "Added Insulation", "Direct Drive Motor". These design options shouldn't affect water consumption. * Equalize Clothes Container volume where they differ for statistical reasons only. Recalculate the Energy Factor. * Setthe "Reduce Thermal Mass" and " Added Insulation" mechanical energy use to the baseline value. * Set "Direct Drive Motor" hotwater usage to the baseline value. Design Options Not Analyzed in Combination with Others -- Long Payback * Reduce Thermal Mass * Added Insulation * Increase Motor Efficiency * DirectDrive Motor Design Options Not Analyzed in Combination with Others-- OtherReasons * Suds Saver: requires theuse ofan external wash tub.

View4 ( 

# Engineering Analysis General Assumptions • No adjustments to energy savings for differences in drum capacity. (i.e. assume same laundry load handling capability) Adjustments to AHAM data before Design Options are Combined • Setwateruse for all RMC design options to baseline wateruse. These values differed only because ofstatistical reasons due to shipment weighted averages and number ofmanufacturers responding. • SetTotal Gallons equal for "Reduce Thermal Mass", "AddedInsulation", "DirectDrive Motor". These design options shouldn't affect water consumption. • Equalize Clothes Containervolume where they differfor statistical reasons only. Recalculate the Energy Factor. • Setthe "ReduceThermalMass" and " AddedInsulation" mechanical energy. use·to the baseline value. • Set "DirectDrive Motor"hot waterusage to the baseline value. '. '. 

## DesignOptionsNotAnalyzed 

## inCombinationwith Others
-- Long Payback • Reduce ThermalMass • AddedInsulation • Increase MotorEfficiency • DirectDrive Motor Design Options NotAnalyzed 

## inCombinationwith Others_. Other Reasons • Suds Saver: requires the use ofanextemalwash tub.

View4

# Preliminary Engineering Analysis Example AHAM (revision 6)with RMC provision added.
Initial Considerations Tightertub clearance was not combined with: a) Lower RMC options b) Horizontal Axis The design option with the lowest payback period typically becomes the first ranked option. Technically RMC should be the first option on the horizontal axis path because ithad a lower payback than the horizontal axis option, but since a horizontal axis machine may affect the cost/performance ofadding on a RMC feature, the order was changed..

Baseline (vertical axis) Retail Cost: Verbal by Wayne Morris ofAHAM (based on marketing research survey) Manufacturer cost =retail cost / markup E.F.: Used value submitted by AHAM based on shipment weighted average

View6 ! 

# PreliminaryEngineering Analysis Example

AHAM(revision 6) with RMC provision added.
Initial Considerations Tightertub clearance was not combined with: a) Lower RMC option's b) Horizontal Axis The design option with the lowest paybackperiod typically becomes the firstranked option. Technically RMC shouldbethe first option on the horizontal axis pathbecause ithad a lowerpaybackthan the horizontal axis option, butsince a horizontal axis machine may affectthe cost/performance ofadding on a RMC feature, the orderwas changed..



## Baseline (vertical axis) Retail Cost: Verbal byWayneMorris ofAHAM (based onmarketingresearch survey) Manufacturercost

# = retail cost

## I markup**E~F.:** 

## Used value submittedby AHAM basedon shipmentweighted average

View6

# Preliminarv Engineering Analysis Example AHAM (revision 6) with RMC provision added Design Levels 1-6 (Vertical Axis) Level 1: RMC = 50% 

# Machine energy increases, used values provided by AHAM. Hot water energy use remains unchanged from baseline Total Energy column = Mechanical + Hot Water Energy Dryer energy is accounted forin modified energy factor (MEF) Lowering RMC doesn't change water use Level 2: Level 1+ RMC = 40% 

# Machine energy increases, used AHAM value Addincremental cost to go from 50% to 40% RMC Level 3: Level 2 + Thermostatic Mixing Valve HotWater use is decreased by a percentage: (TMVhot water/ Baseline hot water) * (level 2 hot water) Machine energy remains the same Level 4: Level 3 + Improved Fill Control HotWater use changes: (IFC hot water / Baseline hot water)* (Level 3hot water) Other parameters stay constant Total water use is decreased (AHAM value) Level 5: Level 4+ RMC =35% Hot water usage stays the same Machine Energy changes; AHAM value Level 6: RMC = Level 4+ 30% Hotwater usage stays the same Machine energy increases; AHAM value


# View7 PreliminaryEngineeringAnalysis Example AHAM (revision 6) 

## with RMC provision added . Design Levels 1-6 (Vertical Axis) Levell: RMC

## =50% Machine energyincreases, used values provided by AHAM. Hot waterenergy use remainsunchangedfrom baseline Total Energy column 

# = Mechanical

# + Hot Water Energy Dryerenergy is accountedfor in modified energy factor (MEF) Lowering RMC doesn't change wateruse 

## Level 2: Levell

# + lRMC 

# =40% Machine energy increases, usedAHAM value Addincrementalcostto go from 50% to 40% RMC 

## Level 3: Level 2

# +ThermostaticMixing Valve HotWateruse is decreasedbya percentage: (TMVhotwaterlBaselinehotwater) 

# *(level 2hotwater) Machine energyremains the same. 

## Level 4: Level 3

# +ImprovedFill Control HotWateruse changes: (IFC hot water 

## IBaselinehotwater)* (Level 3hotwater) Otherparameters stayconstant Total wateruseis decreased (AHAMvalue) 

## LevelS: Level4

# + RMC

# =35% HotwateruSage stays the same Machine Energy changes;AHAMvalue 

## Level 6: 

# RMe=Level4 

# +30% Hor-waterusage stays the same Machine energyincreases; AHAM value



# View7

## Design Levels 7
- 14 (Horizontal Axis) 

# Level 7: Horizontal Axis Design Used AHAM values Level 8: Horizontal Axis with recirculation Even though this option had alower payback than horizontal axis. it was placed after horizontal since itis a kind of horizontal axis machine with further features. It is understood that the design may be significantly different than horizontal axis and not necessarily a simple add on feature. Used actual values submitted by AHAM (did notcombine with Level 8) Level 9: Level 8 + RMC = 50% Hot Water usage remains unchanged Mechanical Energy (in kWh/cycle) = A + (B
- C) = Level 9 + (difference between baseline and RMC = 50%) 

# where: A= horiz. axis w/recirculation B =for 50%RMC design option only C = baseline mechanical energy Level 10: Level 8+ RMC =40% Same methodology as Level 10 Level 11: Level 8 + RMC =35% Machine energy increases (same methodology as other RMC design options) Hot Waterusage remains unchanged fromprevious design option Level 12: Level 8 + RMC = 30% Machine energy increases (same methodology as other RMCdesign options) Hot Water usage remains unchanged from previous design option Level 13: Level 12 + Thermostatic Mixing Valve Mechanical Energy remains unchanged from Level 13 Hot Water Energy = (original TMV hot water/baseline hot water)*( Level 13 hot water) i.e. hot water is reduced by a percentage ofprevious design option hot water use View7 

# ..
{ 

## Design Levels 7 - 14 (Horizontal Axis) Level 7: HorizontalAxis Design Used AHAM values Level 8: Horizontal Axis with recirculation

.Even though this option had a lowerpayback than horizontal axis. it was placed after horizontal since itis a kind of horizontal axis machine with funher features. It is understood that the design may be significantly different than horizontal axis and notnecessarily a simple add on feature. Used actual values submittedby AHAM (did not combine with Level 8) 

## Level 9: Level 8 

# +RMC 

# =50% HotWaterusage remains unchanged. Mechanical Energy (in kWh/cycle) 

# =A 

# + (B
- C) 

# =Level 9

# +(difference between baseline and RMC 

# =50%) where: A=horiz. axis w/recirculation B 

# =for 50% RMC design option only C.=baseline mechanicalenergy 

## Level 

# 10: Level 8

# +RMC 

# =40% Samemethodology as Level 10 

## Level 

# 11: Level 8 + 

## RMC =35% Machine energyincreases (same methodology as otherRMC design options) HotWaterusage remains unchangedJromprevious design option 

## Level 12:Level 8 + 

## RMC 

# =30% ... . Machine energy increases (same methodology as otherRMC design options) HotWaterusageremains unchanged fromprevious design option 

## Level 13: Level 12 

# +ThermostaticMixing

## Valve MechanicalEnergyremains uD;changed fromLevel 13 HotWaterEnergy 

## = (original TMVhot water/baselinehot water)*( Level 13 hotwater) i.e. hotwateris reducedby a percentage ofprevious design option hot wateruse 

# View7

## Design Levels 14-16 (Without RMC) Level 14: Tighter Tub Clearance Used values submitted by AHAM Level 15: Level 14 + Thermostatic Mixing Valve Hot water use changes Hot Water Energy = (original TMV hot water/baseline hot water)x( Level 14 hot water) Level 16:Level 15 + Improved Fill Control Hot water use changes

View7 Design Levels 14-16 (WithoutlL,tC) Level 14: TighterTub Clearance Used values submitted

## by AHAM !



## Level 15: Level 14 

## + ThermostaticMixing Valve Hot wateruse changes Hot WaterEnergy

# = (original TMV hot wateflbaseline hot water)x( Level 14 hot water) 

## Level 16:Level 15 

# + Improved Fill Control Hot wateruse changes



# View7

# CALCULATIONS Energy Factor
- EF EF= Clothes ContainerVolume
- ( Hot WaterEnergy + MechanicalEnergy) Modified Energy Factor -- MEF MEF= ClothesContainerVolume
- (Hot WaterEnergy + MechanicalEnergy + Dryer Energy)
Moisture Removal (Dryer) Energy -- H, AHAM submitted shipment weighted average data showing the baseline washerhad a Remaining Moisture Content (RMC) of62%. This means that theweight ofa wet test load weighed 62% more than abone dry test load, (1.62 x dry test load).

View7 

# .. ,

I " 

# CALCULATrONS Energy Factor
-- 

## EF EF

# =Clothes Container Volume -:- ( Hot Water Energy 

# + Mechanical Energy)


## Modified Energy

# Factor
-- LWEF MEF= Clothes Container Volume -:- (Hot Water Energy 

# +/.\1echanical Energy 

# + Dryer Energy)


## Moisture Removal (Dryer) Energy
-- 

## H., AHAM submitted shipmentweighted average data 

## showing the baseline washerhada RemainingMoisture Content(RMC) of62%. This means thatthe weight ofa wettest loadweighed62% more than a bone dry test load, (1.62 x dry 

## test load). .'. 

# . .



# View7

# CALCULATIONS AHAM Pronosed Rule Modified to Include Moisture Removal (Dryer) Energy The dryer energy was similarly defined for the AHAM w/ RMC case. The baseline RMC is still 62%, but the final dry test load has a residual RMC of4% instead ofbone dry. In addition several other factors have been added: 1)DryerUtilizationFactor (DUF):the ratio ofdryer cycles to clothes washer cycles per year. 2) Maximum ClothesLoad:the maximum clothes load for a given size clothes washer. For a 2.9 to 3.0 cubic foot washer the maximum load is 12.1 lbs (AHAM Proposed Test Procedure). In the proposed testprocedure the load size varies with drum capacity but for this analysis the load size was kept constant. 3) AverageLoadFraction: the P&G average load to maximum load fraction is 0.52. 

# The AHAM proposed moisture removal energy is: H,=(W 2 

### - 

## W )

## x Dfx DUF Where: W2 

## = (RMC + 1) xLoad,

# lbs/cycle WI = (RMCd,,, + 1)xLoad,lbs/cycle, (at RMC~,d =4%) Df =0.5 kWh/lb ofmoisture (energy required to remove moisture) 

# DUF = 0.844 (AHAM has 0.83, Initial Analysis used 0.80) Load =Maximum ClothesLoadxAverage LoadFraction = 12.1 lbs/cycle x 0.52 = 6.29 lbs 

# ForExample:W22RMc 

## = (0.62 + 

# 1)x 6.29 lbs/cycle= 10.19 lbs/cycle Wi,4%Mc 

## = (0.04 + 1)x 6.29 Ibs/cycle =6.54 lbs/cycle



# View8 ( 

### ,

I 

# CALCULATIONS AHAM Prooosed Rule Modified to Include Moisture Removal (Dryer) Energy The dryer energy was similarly defined for the AHAM 

# wi RMC case. The baseline RMC. is still 62%, but the final dry 

## test load has aresidual RMC of4% instead ofbone dry. 

## In addition several otherfactors have been added: 1) 

## Dryer Utilization Factor (DUF): 

## the ratio ofdryer cycles to clothes washercycles per year. 

## 2) Maximum Clothes Load: the maximumclothes loadfor a given size clothes washer. For a 2.9 to 3.0cubic foot washerthe maximumloadis l2.1lbs 

## (AHAMProposed Test Procedure). 

# In the proposedtestprocedure the load sizevaries with drum 

## capacity but for this analysis the load 

# size was kept constant. 3) 

## AverageLoadFraction: the P&Gaverage load to maximum loadfraction is0.52. The

# AHAM proposedmoistureremovalenergy is:
Where:

ForExample:

ViewS 

## W 2,62CJ.RMC 

## W

1,4CJ.RMC 

## = (RMC

# + 1) x

## Load, llbs/cycle 

# =(RMCresidual

# + I)

# xLoad, lbs/cycle, (atRMCresidual 

# =4%) = 0.5 kWhllb ofmoisture (energyrequiredto removemoisture) = O.S44 (AHAMhas 0.S3, InitialAnalysisusedO.SO) 

# =Maximum· ClothesLoadxAverageLoadFraction . = 12.1 Ibs/cycle

# x0.52 . = 6.291bs . .

= (0.62

# + 1) 

## x 6.29 lbs/cycle = 10.19lbs/cycle = (0.04

# + 1) x 6.29lbs/cycle =6.541bslcycle

# Adjustment to De for Gas Dryers Avalue of0.5 kWh/lb isused to calculate energy required to dry clothes in an electric dryer. This value may not correspond to the energy required by a gas dryer. A correction factor was derived from data submitted by AHAM (June 27. 1995) as part of the Dryer data submittal.

From AHAM Dryer data submittal: kWh/cycle @70% RMC Dryer Gas Energy Electric Energy TotalEnergy kWh/lb Standard Electric 2.210 2.210 0.32 Standard Gas 2.379 0.102 2.481 0.35
For simplification assume all the gas energy is priced atthe cost ofgas (including the small amount ofelectricity. A simple ratio ofthe drying efficiencies can then be used as acorrection factor to the Dfuse inpreviously explained equations Gas correction factor = (0.35/0.32) Df = Df x 

# (035/0.32)

View8 4**~** 4·:

I 

# Adjustmentto De!

# for Gas Dryers A value of0.5 kWhllb is used to calculate energy required to dry clothes in an electric dryer. TIris value may not correspond to the energy required by a gas dryer. A correction factor was derived from data submitted by AHAM (June 27, 1995) as part of the Dryerdata submittal.

From AHAM Dryerdata submittal: kWh/cycle @70% RMC 

# Dryer GasEnergy ElectricEnergy TotalEnergy kWbIlb StandardElectric 

## 2.210 2210 0.32 

## Standard Gas 2.379 

## 0.102 2.481 0.35

For simplificationassume all the gas energyis pricedatthe costofgas (includingthe small amountofelectricity. A simpleratio ofthe dryingefficiencies canthen 

## be usedas a correctionfactor to the De!

## use inpreviouslyexplainedequations Gas correctionfactor 

# =(0.35/0.32) 

# D eJ,ga 

# =De/

# x (0.3510.32)

View8

# HOT WATER INLET TEMPERATURE ADJUSTMENTS Approach: Multiply the hot water energy use per cycle by the ratio ofthe increase in hotwater inlet temperature and the difference between the old hot water inlet and cold water temperatures. Assumptions: 1. HC. WC, CC Machine 2. New hot water inlettemperature = Te w

# hot = 135°F 3: From AHAM revision #8 test procedure a) Thot =hot water temperature = 130°F b) Told = cold water temperature = 60°F Equation: EUew hot

### water = EUhotwater X 1+ {

## (new hot
- 

### Tho) 

## (Thot

- Tcold)) 

# where EUnew hotwater =hotwaterenergy use per cycle based on Tnew hot EUhotwaer = hot water energy use percycle based on Thot 

# Examples: 1) Calculate new hotwaterenergy use from spreadsheet datacase AHAM w/RMC, 11B EUnewhotwater = 

# 1.469 kWh/cyc 

# x [-1 + {(135F
- 130°F)
- (130°F- 60°F)}] 

# EUew hotwa = 1.574 kWh/cyc

View8 I 

# HOT 'VATERINLETTEMPERATURE ADJUSTMENTS

.. Approach:

Multiply the hot water energy use per cycle by the ratio ofthe increase in hotwaterinlet temperature and the difference between the old hot water inlet and cold water

.temperarures.



## Assumptions: 1. He.WC, CCMachine 

## 2. New hot waterinlettemperature 

# =Tnew hot

# = 135°F 3: FromAHAMrevision

## #8 testprocedure a) Thot 

# =hot watertemperature 

# = 130°F b) TCOld

# = cold water temperature 

# =60°F 

# Equation:
where 

## Examples: Ell newhotwarer 

# =hot waterenergyuse percyclebased on 

## T newhot EU hotwater 

# =hotwaterenergyuse percyclebased on

## Thot 1) 

## Calculate newhotwaterenergylise froI.D spreadsheetdataease 

## AHAM wIRMC; 

## lIB 

## EUnewbolwar.er

# = 1.469 kWh/cye x 

# tI + {(135°P
- 130°F) -:- (l30o

## P - 60°F)}]

.EUnewbotwar.er

# = 1.574kWh/cyc

View8

## Horizontal Axis with Recirculation Same procedure as for Horizontal Axis
Increased Motor Efficiency Same value as baseline
Suds Saving Add 0.105 to original value
Added Insulation Same as baseline
DirectDrive Motor Same as baseline
Thermostatic Mixing Valve Same as original value. Assumes water is tempered to original temperature before assuming a higher inletwater temperature. TMV1

## 35 = (TMV 1 

## 35/Baselinel3 5

## ) x Previous design option

View 10 

## , 41" i ;. • 

## Horizontal Axis with Recirculation Same procedure as for Horizontal'Axis


## Increased MotorEfficiency Same value as 

## baseline


## Suds Saving Add 0.105 to original value· .


## AddedInsulation Sameas baseline


## DirectDrive Motor Sameas baseline


## ThermostaticMixing Valve Sameas originalvalue. Assumes wateris tempered to originaltemperature before assuming a higherinletwatertemperature. 

# TMV 13S 

## = 

# (TMV13SlBaselinel3S) x Previous deSign option

View 10

# Engineering Analysis Tables Page 1 Cost / Washer Energy / Dryer Energy / Water
Page 2 Cummulative Payback Simple payback referenced tobaseline values
Page 3 Annual Operating Costs
Page 4 Life Cycle Costs

View8 I 

# EngineeringAnalysis Tables
• Page 1 

## Cost / WasherEnergy / DryerEnergy/ Water
Page 2 Cummulative Payback Simple paybackreferencedto baseline values
Page 3 Annual Operating Costs
Page

## 4 Life Cycle Costs "



## View8.' > u * '
/ - 

# Engineering Analysis Calculations -- Examples 

# Energy Usage Dryer Energy Required
- Hv -- kWh/cycle 

## H, = [(RMC + 1)x (Ibs clothes)]
- [(RMCresidual + 1)x (Ibs clothes)]} x Dx x DUF H, = ([(0.62 + 1)x (12.1 x 0.52)]
- [(0.04 + 1)x (12.1 x 0.52)] x 0.5 kWh/lb x 0.844



# Annual Operating Costs Hot WaterEnergy, $/yr $/yr= (kWh/cycle) x (392 cycles/yr) x (fuel price in $/kWh) x (Fuel Price Multiplier)
Electric Dryer, $/yr $/yr= ,x (Fuel Price Multiplier) x (Electricity price-in $/kWh)x 392 cycles/yr
Gas Dryer,$/yr $/yr= , x (corr. factor for gas Def) x (fuel price mult.) x (gas fuel price in $/MBTU) x (392 cycles/yr) x (3.412/1000 MBTU/kWh)

View8 

# . "
! 

# Engineering Analysis Calculations •• Examples Energy Usage Dryer Energy Required .• Hv •• kWh/cycle Hv

# ={[(RMC

# + 1) 

## x (lbs clothes)]
- [(RMCresidual

## + 1) 

## x (lbs clothes)]} x D;f

## x DUF Hv 

## = {[(0.62

# + 1) 

## x (12.1 x 0.52)]
- [(0.04

# + 1) 

## x (12.1 x 0.52)]} x 0.5 kWhllb x 0.844



# AnnualOperatingCosts HotWaterEnergy, $/yr $/yr

# = (kWh/cycle) x (392 cycles/yr) x (fuel price in $IkWh) x (Fuel PriceMul,!plier)



# . ElectricDryer,$/yr $/yr

# =**~**

# x (FuelPriceMultiplier)

# x (Electricity price-in $/kWh)

# x392 cycles/yr


## GasDryer,$/yr

. 

### . 

## $/yr

# =**~** 

## x (corr. factor for gas**D~f)** 

## x (fuel pricemult.) x (gas fuel pricein $/MBTU) 

## x (392 CYcles/yr) 

## x (3.41211000 MBTUIkWh)

View8

# Engineering Analysis Calculations -- Examples 

# Payback Payback = Delta Retail Cost/Delta Operating Cost where: Delta Retail Cost = (Retail cost ofoption)
- (Retail cost ofbaseline) Delta Operating Cost = (S/yr baseline)
- ($/yr option) 

# Life Cycle Cost LCC = Retail Cost + PV(discount rate, clothes washer life, total $/yr operating cost) Where operating costs include: Hot WaterEnergy Machine Energy Water Supply and Disposal Dryer Energy to dry remaining moisture


# PV= [1- ]OC 

# r 1+r
WherePV = Present Value r = discount rate N = Lifetime 

# OC = Operating Cost View12 • '! 

# .. 

# . : ... b

f 

# EngineeringAnalysis Calculations
-- Examples Payback Payback = Delta Retail Cost/Delta Operating Cost where: DeltaRetail Cost= (Retail costofoption)
- (Retail cost ofbaseline) DeltaOperating Cost= (S/yr 

## baseline)
- ($/yr

## option)


# Life Cycle Cost LCC= Retail Cost

## + PV(discount rate, 

## clothes washerlife, total $/yr 

## operating cost) Where operating costs include: HotWaterEnergy MachineEnergy WaterSupply andDisposal DryerEnergyto 

## dryremaining moisture

Where



# View12 PV

# =Present

## Value r

# = discountrate N 

## = Lifetime OC

# =Operating Cost '.