Lawrence Berkeley Laboratory

University of California Berkeley, California

94720

Energy and Environment Division ($10) 4964M • FAX (510) 486.6996

Energy Analysis Program BuUdiug 90.4000

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7/29/93

Life Cycle Costs and Payback Periods of 3-ton, Single Package System Central Air Conditioner

Draft Version

LAWPI Design Option

SEER Manurr

Cost

Incr.

Manufr

cost

Differential Differential Installed

Installation Maintenance Consumer

cost Cost Cost

Annual

Elec.

use

Annual

Energy

cost

Cumul.

Payback

Period

Lifecycle Costs

(1992$)

Cumulative

Cost of Conserved Energy

(cents/kWh)

Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWhlyr (1992$) ( ears 4% 6% 10% 4% 6% 10%

0 Baseline 9.70 $811.33 - $0.00 $0.00 $1603.59 3534 $300 NA $4,934 $4,513 $3,882 NA NA NA

1 0+Evaporator Slit Fins 9.81 $811.53 $0.20 $0.00 $0.00 $1603.99 3494 $296 0.12 $4,897 $4,480 $3,857 0.09 0.10 0.13

2 1 +Reciprocating Cotpressor. 10,91 EER 10.67 $818.83 $7.30 $0.00 $0.00 $1618.42 3213 $272 0.55 $4,647 $4,264 $3,690 0.42 0.48 0.61

3 2+More Efficient EvaporatorPSCFanMotor (68.5% 10.95 $826.04 $7.21 $0.00 -$7.61 $1625.06 3131 $265 0.63 $4,575 $4,202 $3,643 0.48 0.55 0.70

4 3+ MoreEfticlentCondenser PSCFanMotor (68.5%) 11.07 $830.99 $4.95 $0.00 -$15.22 $1627.23 3097 $262 0.64 •34,546 $4,176 $3,624 0.49 0.56 0.71

5 4+ Condenser Grooved Tubes 11.44 $836.95 $5.96 $0.00 -$15.22 $1639.01 2997 $254 0.78 $4,463 $4,106 $3,571 0.59 0.68 0.87

6 5+TlmeDelay Relay 11.88 $843.45 $6.50 $0.00 -$15.22 $1651.86 2886 $245 0.88 $4,372 $4,028 $3,512 0.67 0.77 0.98

7 6+ Scroll Compressor . 11.50EER/Non-Bleed TXV 12.67 $879.86 $36.41 $0.00 -$15.22 $1723.82 2706 $229 1.71 $4,274 $3,951 $3,468 1.31 1.49 1.91

8 7+ItkteaseEvaporator Fin Density to 14 fpi 12.70 $880.61 $0.75 $0.00 -$15.22 $1725.31 2699 $229 1.72 $4,269 $3,948 $3,466 1.31 1.50 1.92

9 8+InaeaseEvaporator Face Area to6 .60sq.ft. 13.60 $902.83 $22.22 $16.98 -$15.22 $1786.20 2522 $214 2.13 $4,163 $3,863 $3,412 1.62 1.86 2.37

10 9+Dame CondetsseFaceAreato18 .03aq.ft. 14.14 $923.63 $20.80 $51.54 -$15,22 $1861.87 2425 $206 2.75 $4,147 $3,858 $3,425 2.09 2.40 3.06

11 10+1naeaseCondenser FinDensity to22fpi 14.18 $926.05 $2.42 $51.54 -$15.22 $1866.66 2418 $205 2.78 $4,145 $3,857 $3,426 2.12 2.43 3.10

12 11+ltcreaa.Evaporator FaccArea to 7 .S0aq.tt, 14.36 $934.16 $8,11 $57.71 415.22 $1888.86 2388 $202 2.94 $4,140 $3,855 $3,429 2.24 2.56 3,27

13 12+ Evaporator ECM Fan Motor 15.00 $1,075.37 $141.21 $57.71 $0.40 $2183.58 2286 $194 5.48 $4,338 $4,066 $3,658 4.18 4.79 6.11

14 13 + ElecuonicExpansion Valve 15.19 $1,151.54 $76.17 $57.71 $9.38 $2343.11 2257 $191 6.83 $4,470 $4,201 $3,798 5.21 5.96 7.62

15 14+Coesdoom ECM Fan Motor 15.35 $1,218.09 $66.55 $57.71 $16.99 $2482.25 2234 .$189 7.97 $4,587 $4,321 $3,922 6.08 6.96 8.88

16 15 + IncresseCondenser Face Area to 28.33sq.ft. 15.70 $1,260.97 $42.88 $126.82 $16.99 $2636.12 2185 $185 9.03 $4,695 $4,435 $4,045 6.88 7.88 10.06

17 16+ 1ncreaseCondenser Tube Density to2rows 15.96 $1,363.79 $102.82 $126.82 $16.99 $2839.34 2149 $182 10.53 $4,865 $4,609 34,225 8.03 9.19 11.73

18 17+Two-Speed Recip-Compressor System 16.94 $1,532.98 $169.19 $120.65 $31.35 $3181.93 2025 $172 12.34 $5,090 $4,849 $4,487 9.41 10.77 13.75

19 17+Variable-SpeedRecip-Compressor System 16.95 $1,947.94 $584.15 $120.65 $78.22 $4048.97 2023 $172 19.10 $5,956 $5,715 $5,353 14.56 16.67 21.28

20 17+Two-SpeodScroll-Compressor System 17,00 31,855.80 $492,01 $126.82 $74.19 $3869.00 2018 $171 17.62 $5,770 $5,530 $5,170 13.44 15.38 19.64

21 Variablo-Speed Scroll-Compressor Sstem 19.30 $2,005.96 $642.17 $126.82 $80.75 $4172.35 1776 $151 17.24 $5,846 $5,635 $5,318 13.15 15.05 19.22

Assumptionso

1 Electricitycost = 0.085 $/kWh (average cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOEs Annual Energy Outlook 1993, inflated

to 1992 dollars). The interpolated value for 1999 is 0.082 $/kWh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment).

2 Lifetime =15 years. Markup factor= 1.98.

3 Two-Speed and Variable-Speed Reciprocating Compressor Systems include an indoor coil face area that has been reduced to 6.60 sq.ft.

4 Installation and Maintenance Costs for each design option are total differential costs from the baseline unit.

5 Baseline unit includes:

Evaporator: 4.13 sq.fL,13 fins/inch, Wavy Fins, 3 tube rows, Groove Tubes

Condenser: 12.88 sq.fL 20 fins/inch, Slit Fins,1 tube row, Smooth Tubes

Compressor Reclptocating,10.20 EER (nominal)

Evaporator Fan Motor. PSC, 58.5% efficient

Condenser Fan Motor. PSC, 58.5% efficient

Enhancement Devices: Now

6 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay.

7 Maximum Sensible Heat Ratio= 75.7%

8 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls.

9 Condenser ECM Fan Motor is run at a single speed.

EE-RM-93-801 COMMENT 0AA

SEER 

[Leve De6ign Option " 

Btuh/W 

0 Buellne 9.70 

1 o + Eva~ Slit FinJ 9.81 

2 1 + Reciprocating Compressor: 10.91 EER 10,67 

3 2 + More EfIIcimlt EvaporftDl' PSC Fan Motor (68.5% 10.95 

4 3 + More EfIIcimlt C<lodenser PSC Fan Motor (68.5%) 11.07 

5 4 + C<lodenser Grooved Tubes 11.44 

6 5 + 11mo Delay Relay 11.88 

7 6 + Scroll CoInpRuor: 11.50 EER I Non-Bleed TXV 12.67 

8 7 + Increuo EvipQRlOr Fm Demlty to 14 Cpi 12.70 

9 g + Increuo Evaporator Face Area to 6.60 Iq.Ct. 13.60 

10 9 + lDcreuo CoodaIIer Face Area to 18.03 Iq.n. 14.14 

11 10 + Increuo CoodaIIer FIn Demit)' to 22 fpl 14.18 

12 11 + Increuo Evaporator Pace Area to 7,50 Iq.n. 14.36 

13 12 + Evaporator ECM Pan Motor 15.00 

14 13 + ElCClrOak: Expansloo Valve 15.19 

15 14 + Coodcnser ECM Fan MOIOr 15.35 

16 15 + lDcreue Condenser Face Area to 28.33 sq.Ct. 15.70 

17 16 + lDcreue Condenser Tube Density to 2 rows 15.96 

18 17 + Two-Speed Recip-Com.pressor System 16.94 

19 17 + VarlabJe..Speed Recip-Compressor System 16.95 

20 17 + Two-Speed Scroll-Compres5or System 17,00 

21 17 + VarlabJe..Speed Scroll-Compressor System 19.30 

AsS!l!!jpdonsi 

Life Cycle Costs and Payback Periods or 3-ton, Single Package System Central Air Conditioner 

Draft Version 

Incr. Differential Differential Installed Annual Annual Cumul. Lifecycle Costs 

Manufr Manufr Instal\atlon Maintenance Consumer EIec. Energy Payback 

Cost Cost Cost Cost Cost use cost Period (1992$) 

(1992$) (1992$) (1992$) (1992$) (l992$) kWh/yr (1992$) (years) 4% 6% 10% 

$811.33 . $0.00 $0.00 $1603.59 3534 $300 NA $4,934 $4,513 $3,882 

$811.S3 $0.20 $0.00 $0.00 $1603.99 3494 $296 0.12 $4,897 $4.480 $3,857 

$818.83 $7.30 $0.00 $0.00 $1618.42 3213 $272 0.55 $4,647 $4,264 $3,690 

$826.04 $7.21 $0.00 ·$7.61 $1625.06 3131 $265 0.63 $4,575 $4,202 $3,643 

$830.99 $4.95 $0.00 ·$15.22 $1627.23 3097 $262 0.64 '$4,546 $4,176 $3,624 

$836.95 $5.96 $0.00 ·$15.22 $1639.01 2997 $254 0.78 $4,463 $4,106 $3,571 

$843.45 $6.50 $0.00 ·$15.22 $1651.86 2886 $245 0.88 $4,372 $4,028 $3,512 

$879.86 $36.41 $0.00 ·$15.22 $1723.82 2706 $229 1.71 $4,274 $3,951 $3,468 

$880.61 $0.75 $0.00 ·$15.22 $1725.31 2699 $229 1.72 $4,269 $3,948 $3,466 

$902.83 $22.22 $16.98 -$15.22 $1786.20 2522 $214 2.13 $4,163 $3,863 $3,412 

$923.63 $20.80 $51,54 ·$15.22 $1861.87 2425 $206 2.75 $4,147 $3.858 $3,425 

$926.05 $2.42 $51.54 ·$15.22 $1866.66 2418 $205 2.78 $4,145 $3,857 $3.426 

$934.16 $8.11 $57.71 ·$1S.22 $1888.86 2388 $202 2.94 $4,140 $3.855 $3,429 

$1,075.37 $141.21 $57.71 $0.40 $2183.58 2286 $194 S.48 $4,33K $4.066 S3.65K 

$1,151.54 $76.17 $57.71 $9.38 $2343.11 2257 $191 6.83 $4,470 $4,201 $3,798 

$1,218.09 $66.55 $S7.71 $16.99 $2482.25 2234 $189 7.97 $4,587 $4,321 $3,922 

$1,260.97 $42.88 $126.82 $16.99 $2636.12 2185 $185 9.03 $4,695 $4,435 $4,045 

$1,363.79 $102.82 $126.82 $16.99 $2839.34 2149 $182 10.53 $4.865 $4,609 $4,225 

$1,532.98 $169.19 $120.65 $31.35 $3181.93 2025 $172 12.34 $5,090 $4,849 $4.487 

$1,947.94 $584.15 $120.65 $78.22 $4048.97 2023 Sl72 19.10 $5,956 $5.715 $5,353 

$1,855.80 $492.01 $126.82 $74.19 $3869.00 2018 $171 17.62 $5,770 $5,530 $5,170 

$2,005.96 $642.17 $126.82 $80.75 $4172.35 1776 $151 17.24 $5,846 $5.635 $5,318 

1 E1eclrlcity cost .. O.085"Wh (average cost In 1999 obtained from an Interpolation of the 1995 and 2000 prices of electricity forecast In DOE's Annual Energy Outlook 1993, inflated 

7/29/93 

Cumulative 

Cost oJ Conserved Energy 

(cents/kWh) 

4% 6% 10% 

NA NA NA 

0.09 0.10 0.13 

0.42 0.48 0.61 

0.48 0.55 0.70 

0.49 0.56 0.71 

0.59 0.68 0.87 

0.67 0.77 0.98 

1.31 1.49 1.91 

1.31 1.50 1.92 

1.62 1.86 2.37 

2.09 2.40 3.06 

2.12 2.43 , 3.10 

2.24 2.56 ' 3.27 

4.IK 4.79 6.11 

5.21 5.96 7.62 

6.08 6.96 8.88 

6.88 7.88 10.06 

8.03 9.19 11.73 

9.41 10.77 13.75 

14.56 16.67 21.28 

13.44 15.38 19.64 

13.15 15.05 19.22 

to 1992 dollarc). The Intapo1ated value for 1999 is 0.082 $IkWh (1991$) or 0.085 afier adjusting for Inflation from 1991 to 1992. The electricity price enduse factor for CAe is 1.0 (no adjustmenl). 

2 Lifetimo .. 15 yean. Marlrup factor .. 1.98. 

3 Two-Speed and Variable-Speed Reciprocating Compressor Systems Include an Indoor coil face area that bas been reduced to 6.60 sq.ft. 

" InstaDatioo and Maintanance Costs for eacb design option are total differential costs from the baseline unit. 

6 Baseline IIDit incluclui 

Evaporator: 4.13 sq.ft,13 fim/Inch, Wavy Fins, 3 tube rows, Groove Tubes 

CoodcIJIer; 12.88 sq.ft. 20 fllll/Inch, SUt Fins, 1 tube row, Smooth Tubes 

CompRAOl'i RcciprocatIng, 10.20 EER (nominal) 

EvipQRlOr Fan Motor: PSC, 58.5% efficient 

Coodenser Fan Motor: PSC, 58.5% efficient 

EnhancementDevlceli None 

o NOD-Bleed 'l'llemwGtatIc Expansion Valve replaces the need for a Time Delay Relay. 

7 Maximum SeDIIblc Heat RatIo'" 75.7% 

8 EvipQRlOr ECM Fan Motor Is modulated. COlt of fan motor Includes electronic modulating e<:>nlrols. 

9 Coodenser ECM Fan Motor Is run at. lingle q>eed. 
P

$6,000 l -

$5,500 -F-

$5,000 -EN

$4,000 -}

$3,500 -^

$3,000

9.0 11.0

7/29/93

Life Cycle Cost for 3-ton Single Package System

Central Air Conditioner: Draft

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Life Cycle Cost for 3·ton Single Package System 

Central Air Conditioner: Draft 

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Life Cycle Cost for 3-ton Single Package System

Central Air Conditioner: Draft

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Central Air Conditioner: Draft 

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Life Cycle Costs and Payback Periods of 3-ton, Single Package System Central Heat Pump

Draft Version

7/29/93

Incr. Differential Differential Installed Annual Elec Use Annual Cumul. Lifecycle Costs Cumulative

SEER HSPF Manufr Manufr Installation Maintenance consumer Cooling Heating Energy Payback Cost of Conserved Energy

L v ] Desi n O tion Coat Cost cost cost cost cost Period (19925) (centsAWh)

o e g p

Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (19925) k kWh/ (1992$) (years) 4% 6% 10% 4% 6% 10%

0 Baseline 9.70 6.69 $602.59 - $0.00 $0.00 $1282.91 3764 8,379 $1,029 NA $12,727 511.279 $9,112 NA NA NA

1 0+ Indoor Coil Slit Fins 9.82 6.79 $602.59 $0.00 $0.00 $0.00 $1282.91 3719 8,261 $1,015 0.00 $12,573 $11,145 $9,006 0.00 0.00 0.00

2 1 +Increase Indoor Coil Fin Density to 14 fpi 9.85 6.82 $603.25 $0.66 $0.00 $0.00 $1284.32 3708 8,225 $1,011 0.08 $12,530 $11,107 $8,977 0.22 0.26 0.33

3 2+More EfficlentIndoor PSCFanMotor (68.5%) 10.12 6.91 $610.46 $7.21 $0.00 -$7.61 $1292.06 3607 8,108 $993 0.25 $12,333 $10,936 $8,845 0.52 0.60 0.77

4 3+TimoDelay Relay 10.41 7.06 $616.96 $6.50 $0.00 -$7.61 $1305.90 3506 7,943 $970 0.39 $12,095 $10,731 $8,687 0.80 0.92 1.17

5 4+MoeElEcientOutdoor PSCFanMotos(68.5% 10.52 7.14 $623.26 $6.30 $0.00 -$15.22 $1311.70 3471 7,846 $959 0.41 $11,977 $10,628 $8,608 0.88 1.01 1.29

6 5 + Increase Indoor Coil Face Area to 4.97 aq1t. 11 .22 7.34 $636.84 $13.58 $9.74 -$15.22 $1350.35 3254 7,637 $923 0.64 $11,614 $10,316 $8,372 1.19 1.36 1.74

7 6+Demand Ddrat 11.22 7.56 $648.34 $11.50 $9.74 -515.22 $1374.84 3254 7,415 $904 0.74 $11,429 $10,158 $8,253 1.62 1.85 2.37

8 7+ Increase Indoor Coil Face Area to6 .39sq.ft 11.58 7.79 $663.40 $15.06 $19.48 -$15.22 $1416.64 3152 7,199 $877 0.88 $11,171 39.938 $8.090 1.96 2.25 2.87

9 8+OutdoasCca1Grooved Tubes 11.88 7.83 $670.39 $6.99 $19.48 -$15.22 $1431.52 3073 7,162 $868 0.92 $11,077 $9,857 $8,030 1.93 2.21 2.83

10 9+ Reciprocating Cawpraaor:10.92EER 11.91 7.92 $677.14 $6.75 $19.48 -$15.22 $1445.89 3065 7,081 $860 0.96 $11,007 $9,798 $7,987 2.09 2.40 3.06

11 10+ ReciprocatingCcauprcuoa 11.26EER 12.41 8.13 $692.04 $14.90 $19.48 415.22 $1477.61 2941 6,896 $834 1.00 $10,748 $9,576 $7,820 2.13 2.44 3.11

12 11+SuollCompressor: 11.50EER 12.95 8 .14 $719.28 $27.24 $19.48 •$15.22 $1535.61 2819 6,885 $823 1 .22 $10,681 $9,524 $7,792 2.40 2.75 3.52

13 12 + Non-Blood Thermostatic Expansion Valves 13.27 8 .35 $731 .23 $11.95 $19.48 415.22 $1561 .05 2751 6,714 $802 1.23 $10,481 $9,353 $7,663 2.47 2.82 3.61

14 13 + IncreaseIndoor Coil Face Area to 7.50sq.ft. 13 .48 8.39 $741.52 $10.29 $27.09 -$15.22 $1590.57 2708 6,684 $796 1.32 $10,442 $9323 $7,646 2.62 3.00

'

3.83

15 14+JtereueOutdocr Coil Face Arcato21 .00sq.ft. 13.90 8 .50 3366.84 $25.32 $67.35 -$15.22 $1684.73 2626 6,593 $781 1.62 $10,373 $9,274 $7,628 3.18 3.64 4.64

16 15+OutdoorECMFact Motor 14.04 8.68 $839 .53 $72.69 $67.35 -57.61 $1847.10 2600 6,461 $768 2.16 $10,385 $9,306 $7,688 4.36 4.99 6.37

17 16 + 1acreaso Indoor Coil Tube Density to4rows 14.13 8.71 3860.66 $21.13 $67.35 -$7.61 $1892.09 2584 6,436 $765 2.30 310.393 $9317 $7,707 4,64 5.31 6.78

18 17+Increase OutdoorCcilFace Area to27.00sq.ft. 14.38 8 .79 $885.92 $25.26 $107.61 -$7.61 $1986.12 2539 6,379 $756 2.57 $10,391 $9,328 $7,736 5.16 5.91 7.55

19 18+ Indoor ECM Fan Motor 15.06 8 .94 $1,027.03 $141.11 $107.61 $8.01 32302.17 2425 6,271 $737 3.49 $10,497 $9,461 $7,909 6.84 7.83 10.00

20 19+E1ccumicExpansicmValve 15.25 8.99 $1,075.37 $48.34 $107.61 $16.99 $2414.06 2394 6,238 $732 3.80 $10,548 $9,520 $7,979 7.42 8.50 10.85

21 20+Two-Speed Rccip-Compressor System 16.36 9.05 $1,252.58 $177.21 $107.61 $30.72 $2805.07 2232 6,197 $714 4.83 $10,748 $9,743 $8,239 8.93 10.22 13.06

22 20+Vadable-SpeodRecip-CanpressorSystem 16.47 9.45 $1,663.91 $588.54 $107.61 $76.14 $3726.21 2217 5,935 $691 7.22 $11,408 $10,436 $8,981 14.20 16.26 20.76

23 20+Two-Speed Seroll-Compressor System 16.89 9 .54 $1,563.49 $488.12 $107.61 $71.75 $3508.03 2162 5,879 $682 6.40 $11,085 $10,127 $8,692 12.49 14.30 18.26

24 20+Vaiablo-S eedScroll-Coon rS en 18 .55 10.20 $1,713.45 $638.08 $107.61 $78.31 $3833.86 1968 5495 $633 6.43 $10,867 $9,978 $8,645 12.77 14.62 18.67

1 Electricity cat - 0.085 $/kWh (average coat in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOE's Annual Energy Outlook 1993, inflated

to 1992 dollars). The interpolated value for 1999 is 0.082 $/kWh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price endure factor for CAC is 1.0 (no adjusunent).

2 Lifetime - 15 yeas. Markup factor - 2.13.

3 Baseline unit includes:

Indoor Cal- 3.55 sq.ft.,13 finsfincb, Wavy Fins, 3 tube rows, Groove Tubes

Outdoor Coil: 15.00 sq.R., 20 fmshnch, Slit Fins, l tube row, Smooth Tubes

Compreaa Reciprocating, 10.80 EER (nominal); Accumulator

IndoerFan Motor. PSC, 585%effcient

Outdoor Fan Motor: PSC , 58.5% efficient

Enhancement Devices: None

4 Ali Two-Speed and Variable-Speed Compressor Systems include an Accumulator.

S Maximum Sensible Rau Ratio - 75.7%

6 Installation and maintenance costs are total differential costs from the baseline unit.

7 Non-Bleed Thermostatic Expansion Valves replace the need for a Time Delay Relay and an Accumulator.

8 Evaporator ECM Fan Motor is modulated Cost of fan motor includes electronic modulating controls.

9 Condansor ECM Fan Motor is rum at a single speed.

EE-RM-93-801 COMMENT 0AA

Life Cycle Costs and Payback Periods of3-ton, Single Package System Central Heat Pump 

Draft Version 

Incr. Differential Differential Inllalled Annual Eloc Use Annual Cumul. Lifecycle Costs 

SEER HSPF Manufr Manufr Inatallation Maintenance conaumcr Cooling Heating Energy Payback 

fLove: Dclian Option Cost Coo Cost Cost cost cost Period (1992S) 

Btuh/W Btuh/W (1992$) (1992$) (1992S) (1992S) (1992$) kWh/yr kWh/yr (1992$) (years) 4% 6% 

0 Bucllne 9.70 6.69 $602.59 - $0.00 SO.OO $1282.91 3764 8,379 $1,029 NA $12,727 $11,279 

1 0+ Indoor Coil Slit Fm. 9.82 6.79 $602.59 $0.00 $0.00 $0.00 $1282.91 3719 8,261 $1,015 0.00 S12,573 $11,145 

2 1 + lD=uoIndoocCoU Fin Dauity to 14 fpi 9.85 6.82 $603.25 $0.66 $0.00 SO.OO $1284.32 3708 8,225 $1,011 0.08 S12,530 m,107 

3 2 + Mare BfticIcat Indoor PSC Fan Motor (68.5%) 10.12 6.91 $610.46 $7.21 $0.00 -$7.61 $1292.06 36fYl 8,108 $993 0.25 S12,333 S10.936 

4 3 + II1DO Delay Relay 10.41 7.06 $616.96 $6.50 $0.00 -$7.61 $130S.90 3506 7,943 $970 0.39 $12,Q95 S10,731 

5 4+ Mare BfticIcat Outdoor PSC Fan Motor (68.S% 10.52 7.14 $623.26 $6.30 $0.00 -$15.22 $1311.70 3471 7,846 $9S9 0.41 $11,977 $10,628 

6 5 + lD=uo Indoor COU FlccArea to 4.97 "I.ft. 11.22 7.34 $636.84 $13.58 $9.74 -$15.22 $1350.35 3254 7,637 $923 0.64 $11,614 $10,316 

7 6 + Demand DcfroIt 11.22 7.56 $648.34 $11.50 $9.74 -$15.22 $1374.84 3254 7,415 S904 0.74 $11,429 SIO,158 

8 7 + lD=uo~CoU FICO Area to 6.39 "I.ft. I1.S8 7.79 $663.40 $15.06 $19.48 -$IS.22 $1416.64 31S2 7,199 S877 0.88 S11,171 $9.938 

9 8 + Outdoor Coil Otoovcd TubcI 11.88 7.83 $670.39 $6.99 $19.48 -$15.22 $1431.52 3073 7,162 $868 0.92 SII,077 S9,857 

10 9 + R.cc:qnocatina Canpn:aIor: 10.92 EER 11.91 7.92 $677.14 $6.75 $19.48 -$IS.22 $1445.89 3065 7,081 $860 0.96 Sl1,007 $9,798 

11 10 + R.cc:qnocatina Canpraacr. 11.26 EER 12.41 8.13 $692.04 SI4.90 $19.48 -$IS.22 $1477.61 2941 6,896 $834 1.00 $10,748 $9,576 

12 11 + SczoIl CanprcNOr: 11.50 EER 12.9S 8.14 $719.28 $27.24 $19.48 -$15.22 $1535.61 2819 6,885 $823 1.22 $10,681 $9,524 

13 12 + Naa-BIcod ThcmIoItatie Expalllion Valvea 13.27 8.35 $731.23 $11.95 $19.48 -$15.22 $1561.05 2751 6,714 $802 1.23 S10.481 $9,353 

14 13 + Iac:rcuc Indoor Coil Faco Area to 7.50 "I.ft. 13.48 8.39 $741.52 $10.29 $27.09 -$15.22 $1590.57 2708 6,684 $796 1.32 $10,442 $9,323 

IS 14 + Iac:rcuc Outdoor Coil FICO Area to 21.00 Iq.ft. 13.90 8.50 $766.84 $25.32 $67.3S -$IS.22 $1684.73 2626 6,593 $781 1.62 $10,373 $9,274 

16 IS + Outdoor ECM Fill Motor 14.04 8.68 $839.53 $72.69 $67.35 -$7.61 $1847.10 2600 6,461 $768 2.16 $10,385 $9.306 

17 16 + Iac:rcuc Indoor Coil Tube DalIity to 4 roWi 14.13 8.71 $860.66 $21.13 $67.35 -$7.61 $1892.09 2584 6,436 $765 230 $10,393 $9.317 

18 17 + IncrcucOutdoorCoil Faco Area to 27.00 Iq.ft. 14.38 8.79 $885.92 $25.26 $107.61 -$7.61 $1986.12 2539 6,379 S756 2.57 $10,391 S9.328 

19 18 + IndoarECMFan Motor 15.06 8.94 $1,027.03 $141.11 $107.61 $8.Q1 $230217 2425 6,271 $737 3.49 $10,497 S9,461 

20 19 + EIccIraaic Bxpanaion Valve 15.25 8.99 $1,075.37 $48.34 $107.61 $16.99 $2414.06 2394 6,238 $732 3.80 $10,548 S9,520 

21 20 + Two-Speed Rcc:ip-CompI'ClIOl' Syltcnl 16.36 9.05 $1.252.58 $177.21 $107.61 $30.72 $2805.07 2232 6,197 $714 4.83 S10,748 $9.743 

22 20 + Vuiablo-Spccd Rccip-Comprcaaor Syltcnl 16.47 9.45 $1,663.91 $588.54 $107.61 $76.14 $3726.21 2217 5,935 $691 7.22 $11,408 S10,436 

23 20 + Two-Speed ScroIl-Canpreuor System 16.89 9.54 $1,563.49 $488.12 $107.61 $71.75 $3508.03 2162 5,879 $682 6.40 $11,085 $10,127 

24 20 + Vuiablo-Spccd ScroII-Com~r System 18.55 10.20 $1,713.45 $638.08 $107.61 $78.31 $3833.86 1968 5495 S633 6.43 S10.867 $9,978 

AWlIllpti!l1f' 

1 B1cctr:iQty c:m • 0.085 $/kWh (avCIlgo cost in 1999 obtained from an in~o1ltion of tho 1995 and 2000 prieta of electricity foICe"! in OOE'. Annual Enetgy Outlook 1993, inflated 

to 1m dol1an). Thcintapolatcd value for 1999 is 0.082 $ikWh (1991$) or 0.085 after adjusting forinf1ation fran 1991 to 1992. The electricity price enduse faclOr for CAC is 1.0 (no adjustment). 

2 Lifetime -15 yean. Mmup facta. 2.13. 

3 Dueline unit includea: 

IndoorCoU: 3.SS aq.ft.,13 finIJinch. Wavy FIIlI, 3 tube roWI, Groove Tu\)e$ 

Outdoor CoU: 15.00 aq.i't., 20 finl/inch, Slit Fins, 1 tube row, Smooth Tu\)e$ 

Coaqnaac:r. R.cc:qnocatin&, 10.80 EER (nominal); Accumul&tor 

Indoor Fan Motor: psc, S8.5~ officimt 

OuIdoor Fan Mota: PSC. S8.5~ efficient 

J!nhancemmt DcviccI: NOlIe 

4 All Two-Speed and Vuiablo-Speed Comptellor SystcmJ include an Accumulator. 

6 lnIIIlIatioa and maintenance CONuc totU differential CON from the baaelino unit 

7 NOlI-Bleed ThCInnOltitie Expalllion Valvea replace the need for a Time Delay Relay and an Accumul&tor. 

8 BvlpOlatcr ECM Fan Motor is modul&tcd. Coot r;:i fan motor includes electronic modulating controla:. 

9 CondcMw ECM Pan Moto:r 11l\1li at I .1na10 lpeed. 

, 

10% 

$9,112 

$9,006 

$8,977 

$8,845 

S8,687 

$8,608 

$8,372 

$8.253 

$8.090 

S8,030 

$7,987 

$7,820 

$7,792 

$7,663 

$7,646 

$7,628 

$7,688 

$7,707 

$7,736 

$7.909 

$7.979 

$8,239 

$8,981 

S8,692 

$8,645 

Cumulative 

Cost of Cmscrved Energy 

(cents/l<Wh) 

4% 6% 10% 

NA NA NA 

0.00 0.00 0.00 

0.22 0.26 0.33 

0.52 0.60 0.77 

0.80 0.92 1.17 

0.88 1.01 1.29 

1.19 1.36 1.74 

1.62 1.85 2.37 

1.96 2.25 2.87 

1.93 2.21 283 

209 240 3.06 

213 2.44 3.11 

240 275 3.52 

247 2.82 3.61 

2.62 ,3.00 3.83 

3.18 '3.64 4.64 

4.36 4.99 6.37 

4.64 5.31 6.78 

5.16 5.91 7.55 

6.84 7.83 10.00 

7.42 8.50 10.85 

8.93 10.22 13.06 

14.20 16.26 20.76 

12.49 14.30 18.26 

12.77 14.62 18.67 
7/29/93

Life Cycle Cost for 3-ton Single Package System

Central Heat Pump: Draft

$13,000

$12,500

$12,000

$11,500

$11,000

$10,500 +

$10,000 -}-

$9,500

$9,000

$8,500

$8,000

$7,500

4% discount rate

- - - - 6% discount rate

- ®- - - - 10% discount rate

11

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

EE-RM-93-801 COMMENT 0AA

$13,000 

$12,500 

$12,000 

$11,500 

$11,000 

... 

-

~ $10,500 

CI) 

.,.. 

-

0 $10,000 0 

.... 

$9,500 

$9,000 

$8,500 

$8,000 

$7,500 

9.0 10.0 11.0 

7/29/93 

Life' Cycle Cost for 3-ton Single Package System 

Central Heat Pump: Draft 

--0- 4% discount rate 

- - il - - 6% discount rate 

- - - - +- - - - 10% discount rate 

12.0 

-+----+, ... -+' 

'+-+---+' 

13.0 14.0 

SEER 

15.0 

, 

, , 

, 

, 

16.0 17.0 18.0 19.0 
7/29/93

Life Cycle Cost for 3 -ton Single Package System

Central Heat Pump: Draft

6% discount rate

cq $10,500

rn0) Ir, t

$10,000 -^-

$9,500 + `" `q 2

Y,-,-1920

$9,000 +

24

$8,500 i i i ' i ---I- i r i i i

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

.- EE-RM-93-801 COMMENT 0AA

$12,000 

$11,500 

$11,000 

~ $10,500 

0) 

0) 

,... 

-

o 

g $10,000 

$9,500 

$9,000 

$8,500 

9.0 10.0 11.0 

7/29/93 

Life Cycle Cost for 3·ton Single Package System 

Central Heat Pump: Draft 

1-0-- 6% discount rate 1 

2 

·12.0 13.0 14.0 . 15.0 16.0 

SEER 

3 

24 

17.0 18.0 19.0 
Life Cycle Costs and Payback Periods of 5-ton, Single Package System Central Heat Pump

Draft Version

7/30/93

Incr. Differential Differential Installed Annual Elec Use Annual CumuL Lifecycle Costs Cumulative

SEER HSPF Manufr Manufr Installation Maintenance Consumer Cooling Heating Energy Payback Cost of Conserved Energy

Level Design Option Cost con cost Coat' Cost cost Period (1992$) (cents/kW'

Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/ kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10%

0 Baseline 9.70 6.85 $814.72 - $0.00 $0.00 $1924.37 5928 14,038 $1,692 NA $20,740 $18,360 $14,796 NA NA NA

1 0+ Indoor Coil Slit Fins 9.77 6.91 $814.94 $0.22 $0.00 $0.00 $1924.89 5884 13,900 $1,677 0.03 $20,569 $18,211 $14,679 0.11 0.12 0.15

2 1+Scroll Compressor. 11.30EER 11.13 7.31 $839.28 $24.34 $0.00 $0.00 $1982.38 5169 13,148 $1,553 0.42 $19,245 $17,061 $13,791 0.69 0.79 1.00

3 2 + Tima Delay Relay 11.53 7.44 $845.78 $6.50 $0.00 $0.00 $1997.73 4989 12,914 $1,517 0.42 $18,869 $16,735 $13,539 0.70 0.80 1.03

4 3+ MonEfficient Outdoor PSCFanMotor (68.5% 11.64 7.52 $852.08 $6.30 $0.00 -$7.61 $2005.00 4942 12,774 $1,502 0.42 $18,700 $16,588 $13,426 0.74 0.84 1.07

5 4 + Demand Defrost 11.64 7.75 $863.58 $11.50 $0.00 -$7.61 $2032.17 4942 12,402 $1,470 0.48 $18,376 $16,309 $13,213 0.98 1.13 1.44

6 5+Non-Bleed Thennostatic Expansion Valves 11.93 7.82 $885.28 $21.70 $0.00 -$7.61 $2083.42 4821 12,289 $1,450 0.66 $18,208 $16,169 $13,114 1.29 1.48 1.89

7 6+ Move Efficient Indoor PSCFanMotor (68.5%) 12.29 7.94 $895.07 $9.79 $0.00 -$15.22 $2098.94 4679 12,102 $1,422 0.65 $17,913 $15,913 $12,917 1.26 1.44 1.84

8 7+Increase Indoor Coil Face Area to7 . 50sq.ft. 12.67 8.14 $912.61 $17.54 $10.29 -$15.22 $2150.65 4537 11,799 $1,385 0.74 $17,545 $15,598 $12,682 1.46 1.67 2.14

9 8+Increase IndoorCoilFinDensityto 14fpi 12.71 8.21 $914.41 $1.80 $10.29 -$15.22 $2154.91 4525 11,710 $1,376 0.73 $17,454 $15,519 $12,621 1.48 1.69 2.16

10 9+ Outdoor Coil Grooved Tubes 12.89 8 .25 $928.85 $14.44 $10.29 -$15.22 $2189.01 4462 11,650 $1,366 0.81 $17,372 $15,452 $12,576 1.62 1.86 2.37

11 10+Electronic Expansion Valve 13.08 8 ,30 $977.19 $48.34 $10.29 -$6.24 $2312.17 4395 11,582 $1,354 1.15 $17,369 $15,465 $12,613 2.28 2.61 3.33

12 11 +Outdoor ECMFan Motor 13.20 8.39 $1,049.89 $72.70 $10.29 $1.37 $2491.50 4358 11,454 $1,340 1.61 $17,392 $15,507 $12,685 3.25 3.72 4.75

13 12+lndocrECMFanMaor 13.78 8.47 $1,229.94 $180.05 $10.29 $16.99 $2932.40 4173 11,341 $1,315 2.67 $17,553 $15,704 $12,934 5.17 5.91 7.55

14 13+Two-Speed Recp-CompressoSystem 15.57 8.55 $1,466.41 $236.47 $62.63 $33.00 $3559.29 3694 11,237 $1,266 3.83 $17,630 $15,851 $13,185 6.58 7.54 9.62

15 13+Varialdo-SpoedRecip-CompresaorSystem 15.66 8 .93 $1,861.33 $631.39 $62.63 $82.27 $4541.36 3671 10,761 $1,223 5.58 $18,142 $16,422 $13,846 10.43 11.94 15.24

16 13+Two-Speed Scroll-Compressor System 16.06 9.01 $1,778.00 $548.06 $62.63 $78.63 ,$4340.90 3580 10,660 $1,207 4.98 $17,760 $16,063 $13,521 9.26 10.60 13.53

17 13+Variable4 Scroll-Compressor S 17.44 9.34 $1,911.33 $681.39 $62.63 $84.46 $4661.65 3296 10,283 $1,151 5.06 $17,459 $15,841 $13,416 9.36 10.71 13.68

Assumptions:

I Electricity cat -0.085 $/kWh (avenge cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOE's Annual Energy Outlook 1993, inflated

to 1992 douses). The interpolated value for 1999 is 0.082 $/kWh (1991$) or 0. 085 after adjusting for inflation from 1991 to 1992. The electricity price endure factor for CAC is 1.0 (no adjustment).

2 Lifetime - 15 years. Markup factor - 2.36.

3 Installation and maintanance costs for each design option are total differential cats from the baseline unit.

4 Baseline unit includes:

Indoor Coal: 6.00 sq.fL,13 fina6nch, Wavy Fins, 4 tube rows, Groove Tubes

Outdoor Coil: 195 aq.fL, 20 fmslnch, Slit Fins, 2 tube rows, Smooth Tubes

Campraaor, Reciprocating , 10.49 EER (nominal); Accumulator

Indoor Fan Motor. PSC, 58.5% efficient

Outdoor Fan Motor PSC, 58.5% efficient

Enhancement Devices: None

5 All Two-Speed and Variable-Speed Compressor Systems include a outdoor coil area that has been increased to 27.30 aq.fl.

8 Maximum Sensible Heat Ratio - 75.7%

7 Nat-Bleed Thermostatic Expansion Valves replace the need for a Time Delay Relay; Accumulator still required due to excess refrigerant.

8 Evaporator ECM Fan Motor is modulated Cost of fan motor includes electronic modulating controls.

9 Condenser ECM Fan Motor is run at a single speed.

EE-RM-93-801 COMMENT 0AA

Life Cycle Costs and Payback Periods of S·ton, Single Package System Central Heat Pump 

Draft Version 

Incr. Diffc:n:ntaI Diffc:n:ntaI Installed Annual Elec Use Annual Cumul. Lifecycle Costa 

SEER HSPF Manufr Manufr Insta1lation Mmntenance Consumer Cooling Heating Energy Payback 

[l.cvel Dcaign Option C05t C05t Cost Cost' Coat COlt Period (1992$) 

Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr kWh/yr (1992$) (ycan;) 4% 6% 

. 0 Buelinc 9.70 6.85 S814.72 - $0.00 $0.00 $1924.37 5928 14,038 $1,692 NA $20,740 $18,360 

1 0+ hldoorCoi! Slit Fins 9.77 6.91 $814.94 $0.22 SO.OO $0.00 $1924.89 5884 13,900 $1,677 0.03 $20,569 $18,211 

2 1 + Scroll C(lIIIprcuor: 11.30 EER 11.13 7.31 $839.28 $24.34 $0.00 $0.00 $1982.38 5169 13,148 $1,553 0.42 $19,245 $17,061 

3 2 + lImO Delay RoIay 11.53 7.44 $845.78 $6.50 $0.00 $0.00 $1997.73 4989 12,914 $1,517 0.42 $18,869 516,735 

4 3 + More EfIic:icnt OuuIoor PSC Fan Motor (68.5% 11.64 7.52 $852.08 $6.30 $0.00 -$7.61 $2005.00 4942 12,774 $1,502 0.42 $18,700 $16,588 

5 4 + Demand DcfroIt 11.64 7.75 $863.58 $11.50 $0.00 -$7.61 $2032.17 4942 12,402 S1,470 0.48 $18,376 $16,309 

6 5 + NOlI-Diced ThcrmOiltatic Expanaion Valves 11.93 7.82 $885.28 $21.70 $0.00 -$7.61 $2083.42 4821 12,289 $1,450 0.66 $18,208 $16,169 

7 6 + More EfIic:icnt Indoor PSC Fan Motor (68.5%) 12.29 7.94 $895.D7 $9.79 $0.00 -$15.22 $2098.94 4679 12,102 $1,422 0.65 $17,913 $15,913 

8 7 + IncRucIndoorCoi! F.CIC Area to 7.50 sqit. 12.67 8.14 $912.61 $17.54 $10.29 -$15.22 $2150.65 4537 11,799 $1,385 0.74 $17,545 $15,598 

9 8 + IncRuc Indoor Coil Fin DenJity to 14 !pi 12.71 8.21 $914.41 $1.80 $10.29 -$15.22 $2154.91 4525 11,710 $1,376 0.73 $17,454 $15,519 

10 9 + 0uuI00r Coil Grooved Tube. 12.89 8.25 $928.85 $14.44 $10.29 -$15.22 $2189.01 4462 11,650 $1,366 0.81 $17,372 $15,452 

11 10 + lllectronic Expansion Valve 13.08 8.30 $977.19 $48.34 $10.29 -$6.24 $2312.17 4395 11,582 $1,354 !.I 5 $17,369 $15,465 

12 11 + Outdoor ECM Fan Motor 13.20 8.39 $1,049.89 $72.70 $10.29 $1.37 $2491.50 4358 11,454 $1,340 1.61 $17,392 $15,507 

13 12 + Indoor ECM Fan Motor 13.78 8.47 $1,229.94 $180.05 $10.29 $16.99 $2932.40 4173 11,341 $1,315 2.67 $17,553 $15,704 

14 13 + Two-Speed Rocip-Comprcasor System 15.57 8.55 $1,466.41 $236.47 $62.63 $33.00 $3559.29 3694 11,237 $1,266 3.83 $17,630 $15,851 

15 13 + Vuia~Speed Rccip-C(lIIIprcssot System 15.66 8.93 $1,861.33 $631.39 $62.63 $82.27 $4541.36 3671 10,761 $1,223 5.58 $18,142 $16,422 

16 13 + Two-Speed Scrol1-C(lIIIprcaaor System 16.06 9.01 $1,778.00 S548.06 $62.63 $78.63 .$4340.90 3580 10,660 $1,207 4.98 S17,76O $16,063 

17 13 + V uiablo-Spced ScroIl-Comprcssor S yatem 17.44 9.34 $1,911.33 $681.39 $62.63 $84.46 $4661.65 3296 10,283 $1,151 5.06 S17,459 $15,841 

Auumptim.· 

1 EU:cuicity COlt - 0.085 SJkWh (average COlt in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DoE', Annual Energy Outlook 1993, inflated 

to 1992 doUm). The interpolated value for 1999 ia 0.082 $JkWh (1991$) or 0.085 after adjusting for inflatioo from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment). 

2 Lifetime -IS )'CIlII. Mukup factor - 2.36. 

3 Insta1latioa and maintanancc COlts for each design option arc total differentia! costs from the baseline uniL 

4 Buc!ine unit inc1udea: 

Indoor Coil: 6.00 1II.ft., 13 finJlinch, Wavy FiIu, 4 tube rows, Groove Tubes 

Outdoor Coil: 19.5 "lit., 20 finJlinch, Slit Fins, 2 tube rows, Smooth Tubes 

C<lIDprcuar: Rcciprocating, 10.49 EER (nontinal); Accumulator 

Indoor FIJI Motor: Psc, 58.5% efficient 

Outdoor FIJI Motor: PSC, 58.5% efficient 

Enhancement Devices: Noae 

5 All Two-Speed and Variable-Speed C<lIDprcssor Systems include. outdoor coil area that ha. been increased to 27.30 sqit. 

6 Maximum Scmib1eHeatRatio -75.7% 

7 Noa-B1ccd 'l'bctmOItatic Expanaioo Valvea Iqllacc the need for a Tunc Delay Relay; Accumulator still required due to excess rcfrigcranL 

8 Evapomtor ECM FIJI Motor ia modu1ated. Coat of fan motor includes electronic modulating controls. 

9 CondcnaetECMFIJI Motoria run at I lingle speed. 

10% 

$14,796 

514,679 

$13,791 

$13,539 

$13,426 

$13,213 

$13,114 

$12,917 

$12.682 

$12~621 

$12,576 

$12,613 

$12,685 

$12,934 

$13,185 

$13,846 

$13,521 

$13,416 

7/30/93 

Cumulative 

C05t of Cooserved Energy 

(centsIkWh) 

4% 6% 10% 

NA NA NA 

0.11 0.12 0.15 

0.69 0.79 1.00 

0.70 0.80 1.03 

0.74 0.84 1.07 

0.98 1.13 1.44 

1.29 1.48 1.89 

1.26 1.44 1.84 

1.46 1.67 2.14 

1.48 1.69 2.16 

1.62 1.86 2.37 

2.28 2.61 3.33 

3.25 3.72 4.75 

5.17 ~ 5.91 7.55 

6.58 7.54 9.62 

l0A3 11.94 15.24 

9.26 10.60 13.53 

9.36 10.71 13.68 
7/30/93

Life Cycle Cost for 5-ton Single Package System

Central Heat Pump: Draft

$21,000

$20,000

$19,000

$18,000

4% discount rate

- - - - 6% discount rate

®- - - - 10% discount rate

q--°

cm $17,000

$16,000 'Ll -- _ ---A

- -= ----------A

$12,000

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

EE-RM-93-801 COMMENT 0AA

10.0 11.0 

7/30/93 

Life Cycle Cost for 5-ton Single Package System 

Central Heat Pump: Draft 

'+ , 

+ .... '. +, . 

',~ .... + ... -

12.0 13.0 

-0-- 4% discount rate 

- - il - - 6% discount rate 

- - - - +- - - - 10% discount rate 

--+ 

-- ---- ::~:;------~------------+ -• .£~:;~.::.:.:-----

14.0 

SEER 

15.0 16.0 17.0 18.0 19.0 
7/30/93

Life Cycle Cost for 5-ton Single Package System

Central Heat Pump: Draft

$19,000

6% discount rate

$18,000

$16,000

17

10

$15,000 ' ' ' ' ' ' ' ' i

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

EE-RM-93-801 COMMENT 0AA

... 

-('II 

en 

$19,000 

$18,000 

.en 

C $17,000 

o 

o 

..I 

$16,000 

$15,000 

9.0 

o 

1 

10.0 11.0 

7/30/93 

Life Cycle Cost for 5·ton Single Package System 

Central Heat Pump: Draft 

1---0-- 6% discount rate 1 

10 

12.0 13.0 14.0 

SEER 

15.0 

15 

16.0 17.0 18.0 19.0 
7/27/93

Life Cycle Costs and Payback Periods of 3-ton, Split System Central Air Conditioner

Draft Version

Level Design Option

SEER Manufr

Cost

Incr.

Manufr

Cost

Differential Differential Installed

Installation MaintenanceConsum

cost cost Cost

Annual

Elec.

use

Annual

Energy

cost

Cumul.

Payback

Period

Lifecycle Costs

(1992$)

Cumulative

Cost of Conserved Energy

(cents/kWh)

Btub/W (1992$) (1992$) (1992$) 1992$ (1992$) kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10%

0 Baseline 10.00 $474.00 - $0.00 $0.00 $1166.04 3428 $291 NA $4,397 $3,988 $3,376 NA NA NA

1 0+Evaporator Slit Fins 10.12 $474.20 $0.20 $0.00 $0.00 $1166.53 3389 $287 0.15 $4,360 $3,957 $3,352 0.11 0.13 0.17

2 1 + Reciprocating Compresses 10.91 EER 11 .00 $481.50 $7.30 $0.00 $0.00 $1184.49 3117 $264 0.70 $4,122 $3,750 $3,194 0.53 0.61 0.78

3 2 + More Efficient Evaporator PSC Fan Motor (68.5% 11.29 $488.71 $7.21 $0.00 -$7.61 $1194.62 3037 $257 0.86 $4,056 $3,694 $3,152 0.66 0.75 0.96

4 3 + More Efficient Condenser PSC Fan Motor (68.5%) 11.42 $493.66 $4.95 $0.00 -$15.22 $1199.18 3004 $255 0.92 $4,030 $3,672 $3,136 0.70 0.80 1.03

5 4 + Condenser Grooved Tubes 11.80 $499.62 $5.96 $0.00 -$15. 22 $1213.85 2907 $246 1.08 $3,953 $3,607 $3,088 0.82 0.94 1.21

6 5+ Time Delay Relay 12.25 $506.12 $6.50 $0.00 -$15.22 $1229.84 2799 $237 1.20 $3,868 $3,534 $3,035 0.91 1.05 1.33

7 6+ Scroll Compressor: 11.50 EER / Non-Bleed TXV 13.07 $542.53 $36.41 $0.00 -$15.22 $1319.40 2625 $222 2.25 $3,793 $3,480 $3,011 1.72 1.97 2.51

8 7 + Increase Evaporator Fin Density to 14 fpi 13.10 $543.28 $0.75 $0.00 415.22 $1321.25 2618 $222 2.26 $3,789 $3,477 $3,009 1.72 1.97 2.52

9 8 + Increase Evaporator Face Area to 6.60 sq .ft. 14.02 $565.50 $22.22 $16.98 -$15.22 $1392.89 2447 $207 2.73 $3,699 $3,407 $2,970 2.08 2.38 3.04

10 9 + Increase Condenser Face Area to 18.03 sq.ft. 14.58 $586.30 $20.80 $51.54 -$15.22 $1478.62 2352 $199 3.43 $3,695 $3,415 $2,995 2.61 2.99 3.82

11 10+ Increase Condenser Fin Density to 22 fpi 14.62 $588.72 $2.42 $51.54 -$15.22 $1484.57 2346 $199 3.47 $3,695 $3,415 $2,997 2.65 3.03 3.87

12 11 + Increase Evaporator Face Area to 7.50 sq.ft. 14.80 $596.83 $8.11 $57.71 -$15.22 $1510.69 2317 $196 3.66 $3,694 $3,418 $3,004 2.79 3.19 4.08

13 12+ Evaporator ECM Fan Motor 15.46 $738.04 $141.21 $57.71 $0.40 $1873.69 2218 $188 6.90 $3,964 $3,699 $3,303 5.26 6.02 7.69

14 13+ Electronic Expansion Valve 15.66 $814.21 $76.17 $57.71 $9.38 $2070.05 2189 $186 8.61 $4,133 $3,872 $3,482 6.57 7.52 9.60

15 14 + Condenser ECM Fan Motor 15.83 $880.76 $66.55 $57.71 $16.99 $2241.37 2167 $184 10.06 $4,283 $4,025 $3,638 7.67 8.78 11.21

16 15+ Increase Condenser Face Area to 28 .33 sq.ft. 16.18 $923.64 $42. 88 $126. 82 $16.99 $2415.96 2119 $180 11.27 $4,413 $4,161 $3,782 8.59 9.83 12.56

17 16+ Increase Condenser Tube Density to 2 rows 16.45 $1,026.46 $102.82 $126. 82 $16.99 $2668.90 2085 $177 13.20 $4,634 $4,385 $4,013 10.06 11.52 14.71

18 17 + Two-Speed Recip-Compressor System 17.46 $1,195.65 $169.19 $120.65 $31 .35 $3093.30 1964 $166 15.53 $4,944 $4,710 $4,359 11.84 13.55 17.31

19 17+Variable-SpeedRecip-CompressorSystem 17.47 $1,610.61 $584.15 $120.65 $78.22 $4160.97 1963 $166 24.12 $6,011 $5,777 $5,426 18.38 21.05 26.87

20 17 + Two-Speed Scroll-Compressor System 17.52 $1,518.47 $492.01 $126.82 $74. 19 $3936.45 1957 $166 22.22 $5,781 $5,547 $5,198 16.94 19.39 24.76

21 17+ Variable-Speed Scroll-Compressor System 19.90 $1,668.63 $642.17 $126.82 $80.75 $4312.40 1723 $146 21.77 $5,936 $5,731 $5,423 16.60 19.00 24.26

options:

1 Electricity cost = 0.085 $/kWh (average cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOES Annual Energy Outlook 1993, inflated

to 1992 dollars). The interpolated value for 1999 is 0.082 $/kWh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment).

2 Lifetime = 15 years. Markup factor = 2.46.

3 Two-Speed and Variable -Speed Reciprocating Compressor Systems include an indoor coil face area that has been reduced to 6.6 sq.ft.

4 Installation and Maintanance Costs for each design option are total differential costs from the baseline unit.

6 Baseline unit includes:

Evaporator: 4.13 sq.ft., 13 fins/inch, Wavy Fins, 3 tube rows, Groove Tubes

Condenser: 12.88 sq.f ., 20 ins/Inch, Slit Fins, 1 tube row, Smooth Tubes

Compressor: Reciprocating , 10.20 EER (nominal)

Evaporator Fan Motor : PSC, 58.5% efficient

Condenser Fan Moto: PSC, 58.5% efficient

Enhancement Devices: Now

6 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay

7 Maximum Sensible Heat Ratio = 75.7%

8 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls.

9 Condenser ECM Fan Motor is run at a single speed.

EE-RM-93-801 COMMENT 0AA

SEER 

Level Design Option 

BIlIb/W 

0 Basellnc 10.00 

1 o + Evaporator Slit Fins 10.12 

2 1 + Reclprocating Compressor: 10.91 EER 11.00 

3 2 + More EfficIeIIt Evaporator PSC Fan Motor (68.5% 11.29 

4 3 + More EfficIent Condenser PSC Fan Motor (68.5%) 11.42 

5 4 + Condense!" Grooved Tubes 11.80 

6 5 + Time Delay Relay 12.25 

7 6+ Scroll Compressor: 11.50 EER/Non-Bleed TXV 13.07 

8 7 + Ina'ease Evaporator Fin Density to 14 (Pi 13.10 

9 8 + Jnaease Evaporator Face Area to 6.60 sq.ft. 14.02 

10 9 + Ina'ease Condense!" Face Area to 18.03 sq.ft. 14.58 

11 10 + Jnaease Condenser Fin Density to 22 fpl 14.62 

12 11 + Inaease Evaporator Face Area to 7.s0 sq.ft. 14.80 

13 12 + Evaporator ECM Fan Motor 15.46 

14 13 + EIecIronic Expansion Valve 15.66 

15 14 + Condense!" ECM Fan Motor 15.83 

16 15 + Inaease Condense!" Face Area to 28.33 sq.ft. 16.18 

17 16 + Ina'ease Condense!" Tube Density to 2 rows 16.45 

18 17 + Two-Speed Recip-Compressor SystelJl 17.46 

19 17 + Variable-Speed Recip-Compressor SystelJl 17.47 

20 17 + Two-Speed Scroll-Compressor System 17.52 

21 17 + Variable-Speed Scroll-Compressor Syst= 19.90 

Assumptions: 

Life Cycle Costs and Payback Periods of 3-4on, Split System Central Air Conditioner 

Draft Version 

Ina'. Differential Differential Insralled Annual Annual Cwnul. Lifecycle Costs 

Manufr Manufr Installation Mainlella1lCeConsumez Elec. Energy Payback 

Cost Cost Cost Cost Cost use cost Period (1992$) 

(1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr (1992$) (years) 4% 6% 10% 

$474.00 - $0.00 $0.00 $1166.04 3428 $291 NA $4,397 $3,988 $3,376 

$474.20 $0.20 $0.00 $0.00 $1166.53 3389 $287 0.15 $4,360 $3,957 $3,352 

$481.50 $7.30 $0.00 $0.00 $1184.49 3117 $264 0.70 $4,122 $3,750 $3,194 

$488.71 $7.21 $0.00 -$7.61 $1194.62 3037 $257 0.86 $4,056 $3,694 $3,152 

$493.66 $4.95 $0.00 -$15.22 $1199.18 3004 $255 0.92 $4,030 $3,672 $3,136 

$499.62 $5.96 $0.00 -$15.22 $1213.85 2907 $246 1.08 $3,953 $3,607 $3,088 

$506.12 $6.50 $0.00 -$15.22 $1229.84 2799 $237 1.20 $3,868 $3,534 $3,035 

$542.53 $36.41 $0.00 -$15.22 $1319.40 2625 $222 2.25 $3,793 $3,480 $3,011 

$543.28 $0.75 $0.00 -$15.22 $1321.25 2618 $222 2.26 $3,789 $3,477 $3,009 

$565.50 $22.22 $16.98 -$15.22 $1392.89 2447 $207 2.73 $3,699 $3,407 $2,970 

$586.30 $20.80 $51.54 -$15.22 $1478.62 2352 $199 3.43 $3,695 $3,415 $2,995 

$588.72 $2.42 $51.54 -$15.22 $1484.57 2346 $199 3.47 $3,695 $3,415 $2,997 

$596.83 $8.11 $57.71 -$15.22 $1510.69 2317 $196 3.66 $3,694 $3,418 $3,004 

$738.04 $141.21 $57.71 $0.40 $1873.69 2218 $188 6.90 $3,964 $3,699 $3,303 

$814.21 $76.17 $57.71 $9.38 $2070.05 2189 $186 8.61 $4,133 $3,872 $3,482 

$880.76 $66.55 $57.71 $16.99 $2241.37 2167 $184 10.06 $4,283 $4,025 $3,638 

$923.64 $42.88 $126.82 $16.99 $2415.96 2119 $180 11.27 $4,413 $4,161 $3,782 

$1,026.46 $102.82 $126.82 $16.99 $2668.90 2085 $177 13.20 $4,634 $4,385 $4,013 

$1,195.65 $169.19 $120.65 $31.35 $3093.30 1964 $166 15.53 $4,944 $4,710 $4,359 

$1,610.61 $584.15 $120.65 $78.22 $4160.97 1963 $166 24.12 $6,011 $5,777 $5,426 

$1,518.47 $492.01 $126.82 $74.19 $3936.45 1957 $166 22.22 $5,781 $5,547 $5,198 

$1,668.63 $642.17 $126.82 $80.75 $4312.40 1723 $146 21.77 $5,936 $5,731 $5,423 

1 EIecIrIcity cost = 0.085 $i\:Wh (average cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOE's Annual Energy Outlook 1993, inflated 

7/27/93 

Cwnulative 

Cost of Conserved Energy 

(centsi\:Wh) 

4% 6% 10% 

NA NA NA 

0.11 0.13 0.17 

0.53 0.61 0.78 

0.66 0.75 0.96 

0.70 0.80 1.03 

0.82 0.94 1.21 

0.91 1.05 1.33 

1.72 1.97 2.51 

1.72 1.97 2.52 

2.08 2.38 3.04 

2.61 2.99 3.82 

2.65 3.03 3.87 

2.79 3.19 4.08 

5.26 6.02 7.69 

6.57 7.52 9.60 

7.67 8.78 11.21 

8.59 9.83 12.56 

10.06 11.52 14.71 

11.84 13.55 17.31 

18.38 21.05 26.87 

16.94 19.39 24.76 

16.60 19.00 24.26 

to 1992 dollars). The interpolated value for 199911 0.082 $i\:Wb (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment). 

2 Lifetime .. 15 years. Marlrup factor = 2.46. 

3 Two-Speed and Variable-Speed Reciprocating Compressor Systems include an indoor coil face area that has been reduced to 6.6 sq.ft. 

4 Installation and Mainlanance Costs for each design option are total diffe!"ential cosl$ from the baseline unIL 

5 Basellnc unit includes: 

Evaporator: 4.13 sq.ft., 13 Cins/inch, Wavy Fins, 3 tube rows, Groove Tubes 

Condemer: 12.88 sq.ft., 20 fms/inch, Slit Fins, 1 tube row, Smooth Tubes 

Compressor: Reciprocating, 10.20 EER (nominal) 

Evaporator Fan Motor: PSC, 58.5% efficient 

Condense!" Fan Motor: PSC, 58.5% efficient 

Enhancement Devices: None 

6 Non-Bleed 'Ibermo6tat1c Expansion VaIve replaces the need for a Time Delay Relay 

7 Maximum Sensible Heat Ratio = 75.7% 

8 Evaporator ECM Fan Motor Is modulated. Cost of fan motor includes electronic modulating controls. 

II Condense!" ECM Fan Motor Is run at a single speed. 
7/26/93

Life Cycle Cost for 3-ton Split System

Central Air Conditioner: Draft

V

lu $4,000 16AII

®®

I

9.0 11.0

4% discount rate

- - - - 6% discount rate

® 10% discount rate

13.0 15.0

SEER

17.0 19.0

H

21.0

EE-RM-93-801 COMMENT 0AA

$6,000 

$5,500 

$5,000 

~ $4,500 

CJ) 

CJ) 

,.. 

-

o 

~ $4,000 

$3,500 

$3,000 

$2,500 

'+, '+ 

9.0 11.0 

7/26/93 

Life Cycle Cost for 3-ton Split System 

Central Air Conditioner: Draft 

-0-- 4% discount rate 

- - il - - 6% discount rate 

- - - - +- - - - 10% discount rate 

+, '+ '--.._---_...... -. .... ' ..... ----__ ... __ -.... -,.. 

13.0 15.0 

SEER 

17.0 

/ 

/ 

/ 

/ 

/ 

/ 

/ 

/ 

/ 

/ 

/ 

/ ,+ 

19.0 21.0 
7/26/93

Life Cycle Cost for 3-ton Split System

Central Air Conditioner: Draft

$5,700 -^

$5,300 -{-

$4,900

CM

rn

$4,500

9.0

6% discount rate

13.0 15.0

SEER

H--

17.0

I

19.0 21.0

EE-RM-93-801 COMMENT 0AA

$5,700 

$5,300 

Zt $4,900 

N 

0) 

0) 

,.. 

-

8 $4,500 

..J 

$4,100 

$3,700 

$3,300 

9.0 

7/26/93 

Life Cycle Cost for 3·ton Split System 

Central Air Conditioner: Draft 

[ ---[}- 6% discount rate I 

o 

11.0 13.0 15.0 

SEER 

17.0 

1 

19.0 21.0 
7/29/93

Life Cycle Costs and Payback Periods of 5-ton, Split System Central Air Conditioner

Draft Version

Level Design Option

SEER Manufr

Cost

Incr.

Manufr

Cost

Differential Differential Installed

Installation Maintenance Consumer

Cost Cost Cost

Annual

Elec.

use

Annual

Energy

cost

Cumul.

Payback

Period

Lifecycle Costs

19925

Cumulative

Cost of Conserved Energy

cents

Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) k r (1992$) (ears) 4% 6% 10% 4% 6% 1010

0 Baseline 9.71 $1,029.79 - $0.00 $0.00 $2325.27 5960 $505 NA $7,942 $7,231 $6,167 NA NA NA

1 0+ Evaporator Slit Fins 9.79 $1,030.01 $0.22 $0.00 $0.00 $2325.76 5911 $501 0.12 $7,897 $7,192 $6,137 0.09 0.11 0.14

2 1+ Scroll Compressa 11.30 HER 11.18 $1,054.64 $24.63 $0.00 $0.00 $2381.38 5178 $439 0.85 $7,261 $6,644 $5,720 0.65 0.74 0.94

3 2+TimeDelayRelay 11.58 $1,061.14 $6.50 $0.00 $0.00 $2396.05 4996 $423 0.87 $7,104 $6,509 $5,617 0.66 0.76 0.97

4 3+More Efficient Evaporator PSCFanMotor (68.5%) 11.93 $1,070.91 $9.77 $0.00 -$7.61 $2410.50 4852 $411 0.91 $6,983 $6,404 $5,538 0.69 0.79 1.01

S 4+Non-Bleed Thermostatic Expansion Valve 12.23 $1,078.49 $7.58 $0.00 -$7.61 $2427.62 4733 $401 0.98 $6,888 $6,324 $5,479 0.75 0.86 1.10

6 5+ More BfficientCandenserPSCFanMotor (68.5%) 12.33 $1,084.79 $6.30 $0.00 -$15.22 $2434.24 4693 $398 1.02 $6,857 $6,298 $5,460 0.77 0.89 1.13

7 6+ Increase Evaporator F n Density to14fpi 12.36 $1,086.25 $1.46 $0.00 $15.22 $2437.53 4681 $397 1.04 $6,848 $6,291 $5,455 0.79 0,90 1.15

8 7+Increase Evaporator Face Area to7.SOsq.ft. 12.76 $1,103.47 $17.22 $10.29 415.22 $2486.71 4534 $384 1.34 $6,760 $6,220 $5,410 1.02 1.17 1.49

9 8+CondenserGrooved Tubes 12.95 $1,120.33 $16.86 $10.29 -$15.22 $2524.78 4469 $379 1.58 $6,737 $6,204 $5,406 1.20 1.38 1.76

10 9+ Evaporator ECMFanMotor 13.71 $1,300.51 $180.18 $10.29 $0.40 $2947.24 4220 $358 4,22 $6,924 $6,421 $5,668 3.22 3.68 4.70

11 10 + Increase Condenser Face Area to36.50sq.ft. 14.10 $1,394.48 $93.97 $100.88 $0.40 $3250.02 4105 $348 5.88 $7,119 $6,630 $5,897 4.49 5.14 6.56

12 11 + Electronic Expansion Valve 14.29 $1,470.65 $76.17 $100.88 $9.38 $3430.99 4050 $343 6.83 $7,247 $6,765 $6,042 5.21 5.96 7.61

13 12 + Condenser ECM Fan Motor 14.39 $1,543.35 $72.70 $100.88 $16.99 $3602.75 4021 $341 7.78 $7,393 $6,913 $6,195 5.93 6.79 8.67

14 13 +Two-Speed Recip-CosnpressorSystem 15.76 $1,722.32 $178.97 $100.88 $33.71 $4023.59 3671 $311 8.75 $7,483 $7,045 $6,390 6.67 7.64 9.76

15 13 + Variable-Speed Recip•Compressor System 16.47 $2,133.60 $590.25 $100. 88 $85.13 $5003.68 3513 $298 12.92 $8,315 $7,896 $7,269 9.85 11.27 14.40

16 13 +Two-Speed Scroll-Compressor System 16.02 $2,033.35 $490.00 $100.88 $80.75 $4772.93 3612 $306 12.30 $8,176 $7,746 $7,101 9.38 10.73 13.71

17 Variablo-Speed Scroll-Compressor stem 18 .22 $2,183.35 $640.00 $100.88 $87.30 $5118.18 3176 $269 11.84 $8,111 $7,733 $7,166 9.02 10.33 13.19

Assumptions:

1 Electricity cost- 0.085 $/kWh (average cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOES Annual Energy Outlook 1993, inflated

to 1992 dollars). The interpolated value for 1999 is 0.082 $/kWh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment).

2 Lifetime = 15 years. Markup factor = 2.26.

3 Installation and Maintenance Costs for each design option are total differential costs from the Baseline Unit.

4 Baseline unit includes:

Evaporato: 6.00 sgSt., 13 fins/inch, Wavy Fins, 4 tube rows, Groove Tubes

Condense: 23.00 sq.ft., 20 fins/mch, Slit Fins, 2 tube rows, Smooth Tubes

Compressor: Reciprocating, 10.49 BER (nominal); Accumulator

Evaporator Fan Moto : PSC, 58.5% efficient

Condenser Fan Moto: PSC, 58.5% efficient

Enhancement Devices: None

5 Non-Bleed T ermostatic Expansion Valve replaces the need for a Time Delay Relay.

6 Maximum Sensible Heat Ratio = 75.7%

7 Evaporator BCM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls.

8 Condense ECM Fan Motor is run at a single speed.

EE-RM-93-801 COMMENT 0AA

, SEER 

!.eve DeJign Option . BtuhIW 

0 Baseline 9.71 

1 0+ Bvaporawr Slit Filla 9.79 

2 1 + Scroll Ccmprasor: 11.30 EBR 11.18 

3 2 + TIme Delay Relay 11.S8 

4 3 + Moro Efficient BvaponalOr PSC Fan Motor (68.S%) 11.93 

5 4 + Non-Blced Tbennoltatic Expansion Valve 12.23 

6 5 + More Efficient CoIldcnscr PSC Fan Motor (68.5%) 12.33 

7 6 + Increuc Bvllp<X'ator F'm Density to 14 fpi 12.36 

8 7 + Increuc Bvllp<X'ator Face Area to 7.50 sq,ft. J2.76 

9 8 + Coodc:mcr Grooved Tubel 12.9S 

10 9 + Bvapon1Or ECM Fan Motor 13.71 

11 10 + Increuc CoodcnIer Face Area to 36.50 sq.ft. 14.10 

12 11 + BJectJooIc BxpanJloo Valve 14.29 

13 12 + Coodenla' ECM Fan Motor 14.39 

14 13 + Two-Spccd Rccip-Compressor System 15.76 

15 13 + Variablc-Spced Recip-Compressor System 16.47 

16 13 + Two-Spccd ScrolJ-Compressor System 16.02 

17 13 + Variab~Scroll-Compressor System 18.22 

Assumptions; 

Life Cycle Costs and Payback Periods of S-lon, Split System Central Air Conditioner 

Draft Version 

Incr. Differential Differential Installed Annual Annual Cumul. Lifecycle Costs 

Manufr Manufr Installation Maintenance Consumer Eiec. Energy Payback 

Cost Cost Cost Cost Cost use cost Period (1991$) 

(l992S} (1991$) (1992$) (1992$) (1992$) kWhlyr (1991$) (years) 4% 6% 10% 

$1,029.79 - $0.00 $0.00 $2325.27 5960 $505 NA $7,942 $7,231 $6,167 

$1,030.01 $0.22 $0.00 $0.00 $2325.76 5911 $501 0.12 $7,897 $7,192 $6.137 

$1,054.64 $24.63 $0.00 $0.00 $2381.38 S178 $439 0.85 $7,261 $6,644 $5,720 

$1,061.14 $6.50 $0.00 $0.00 $2396.0S 4996 $423 0.87 $7,104 $6,509 $5,617 

$1,070.91 $9.77 $0.00 -$7.61 $2410.50 48S2 $411 0.91 $6,983 $6,404 $5,538 

$1,078.49 $7.58 $0.00 -$7.61 $2427.62 4733 $401 0.98 $6,888 $6,324 $5,479 

$1,084.79 $6.30 $0.00 -$15.22 $2434.24 4693 $398 1.02 $6,857 $6,298 $5,460 

$1,086.25 $1.46 $0.00 -$IS.22 $2437.S3 4681 $397 1.04 $6,848 $6,291 $5,455 

$1,103.47 $17.22 $10.29 -$IS.22 $2486.71 4534 $384 1.34 $6,760 $6,220 $5,410 

$1,120.33 $16.86 $10.29 -$IS.22 $2524.78 4469 $379 1.58 $6,737 $6,204 $5,406 

$1,300.51 $180.18 $10.29 $0.40 $2947.24 4220 $358 4.22 $6,924 $6,421 $5,668 

$1,394.48 $93.97 $100.88 $0.40 $32S0.02 4105 $348 5.88 $7,119 $6,630 $5,897 

$1,470.65 $76.17 $100.88 $9.38 $3430.99 4050 $343 6.83 $7,247 $6,765 $6,042 

$1,543.35 $72. 70 $100.88 $16.99 $3602.7S 4021 $341 7.78 $7,393 $6,913 $6,195 

$1,722.32 $178.97 $100.88 $33.71 $4023.59 3671 $311 8.75 $7,483 $7,045 $6.390 

$2,133.60 $590.25 $100.88 $85.13 $5003.68 3513 $298 12.92 $8,315 $7,896 $7.269 

$2,033.35 $490.00 $100.88 $80.75 $4772.93 3612 $306 12.30 $8,176 $7,746 $7,101 

$2,183.35 $640.00 $100.88 $87.30 $5118.18 3176 $269 11.84 $8.111 $7,733 $7.166 

1 Eicclricity colt. 0.085 $/ltWb (average cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOE's Annual Energy Outlook 1993, inflated 

7129/93 

Cumulative 

Cost of Conserved Energy 

(centslk Wh~ 

4% 6% 10'10 

NA NA NA 

0.09 0.11 0.14 

0.65 0.74 0.94 

0.66 0.76 0.97 

0.69 0.79 1.01 

0.75 0.86 1.10 

0.77 0.89 1.13 

0.79 0.90 1.15 

1.02 1.17 1.49 

1.20 1.38 1.76 

3.22 3.68 4.70 

4.49 5.14 6.56 

5.21 5.96 7.61 

5.93 6.79 8.67 

6.67 7.64 9.76 

9.85 11.27 14.40 

9.38 10.73 13.71 

9.02 10.33 13.19 

to 1992 dolJan). The inIetpolalCd value for 1999 is 0.082 $/ltWh (1991S) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment). 

2 Ufetlmc • 15 yean. Markup factor .. 2.26. 

3 InItallaIiOQ and Maintanancc Costs for each design option are total differential costs from the Baseline UniL 

4 Bueline unit includes: 

BvaporatOr. 6.00 "loft., 13 finJ/inch, Wavy Filla, 4 tube rOWl, Groove Tubes 

Coademer: 23.00 Iq.ft., 20 fina/inch, Slit Fins, 2 tube rows, Smooth Tubes 

Comprwor: Rcciproc:a1lng, 10.49 EBR (nominal); Accumulator 

BvIlp<X'ator Fan Motor. PSC, 58.5% efficient 

Coodcmcr Pan Motor. psc, 58.5% dflCient 

FnhancemcntDcvices: NODe 

5 Non-Blced TbennoIta1ic BxpanJion Valve replaces the need for a Time Delay Relay. 

7 Bvllp<X'alOr ECM Fan Motor II modulated. Cost of fan motor includes electronic modulating controls. 

8 Coodcmcr ECM Fan Motor il run at a lingle speed. 
7/29/93

Life Cycle Cost for 5-ton Single Package System

Central Air Conditioner: Draft

$7,000 -^-

C)

o>

$6,500 -^ -

4% discount rate

- - - - 6% discount rate

- - - - 10% discount rate

N

N

f

$6,000

$5,500 -

$5,040

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

EE-RM-93-801 COMMENT 0AA

$8,500 

$8,000 

$7,500 

~ $7,000 

0) 

0) 

,.. 

-

o 

g $6,500 

$6,000 

$5,500 

$5,000 

9.0 10.0 

7/29/93 

Life Cycle Cost for 5·ton Single Package System 

Central Air Conditioner: Draft 

-0-- 4% discount rate 

- - -6 - - 6% discount rate 

- -- -+- - -- 10% discount rate 

11.0 12.0 13.0 

, 

, 

14.0 

SEER 

15.0 16.0 17.0 18.0 19.0 
7/29/93

Life Cycle Cost for 5-ton Single Package System

Central Air Conditioner: Draft

$8,000 -r

17

$7,500

$6,500

6% discount rate

89

$6,000 -; ' i i I i i i i i

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0

SEER

EE-RM-93-801 COMMENT 0AA

$8,000 

$7,500 

-..,. 

N 

en 

en 

C $7,000 . 

o 

o 

...I 

$6,500 

$6,000 

9.0 

7/29/93 

Life Cycle Cost for 5-ton Single Package System 

Central Air Conditioner: Draft 

15 

I ~ 6% discount rate I 

o 

1 

10.0 11.0 

8 9 

12.0 13.0 

10 

14.0 

SEER 

15.0 16.0 

17 

17.0 18.0 19.0 
t

Life Cycle Costs and Payback Periods of 3-ton, Split System Central Heat Pump

Draft Version

7/27/93

Incr. Differential Differential Installed Annual Elec Use Annual Cumul. Lifecycle Coss Cumulative

SEER HSPF Manuf r Manuf'r Installation Maintenance consumer Cooling Heating Energy Payback Cost of Conserved Energy

Level Design Option Cat Cost Coat cost cost cost Period (1992$) (cents/kWh)

Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/ kWh/ (1992$) (years) 4% 6% 10% 4% 6% 10%

0 Baseline 10.00 6.89 $677.00 - $0.00 $0.00 $1794.05 3651 8,132 $999 NA $12,899 $11,495 $9,391 NA NA NA

1 0+ Indoor Col Slit Fins 10.12 6.99 $677.00 $0.00 $0.00 $0.00 $1794.05 3607 8,018 $985 0.00 $12,750 $11,364 $9,289 0.00 0.00 0.00

2 1 + Increase Indoor Coil Fin Density to 14 fpi 10.15 7.02 $677.66 $0.66 $0.00 $0.00 $1795.80 3597 7,983 $981 0.10 $12,708 $11,328 $9,261 0.29 0.33 0.42

3 2+ More Efficient Indoor PSC Fan Motor (68.5%) 10.43 7.12 $684.87 $7.21 $0.00 -$7.61 $1807.30 3499 7,870 $964 0.38 $12,521 $11,166 $9,137 0.78 0.90 1.14

4 3+TimeDelay Relay 10.74 7.27 $691.37 $6.50 $0.00 -$7.61 $1824.52 3401 7,710 $942 0.53 $12,295 $10,971 $8,987 1.09 1.25 1.60

5 4+ More Efficient Outdoor PSC Fan Motor (68.5% 10.84 7.36 $697.67 $6.30 $0.00 -$15.22 $1833.61 3367 7,615 $931 0.58 $12,183 $10,874 $8,914 1.25 1.43 1.83

6 5+Increase Indoor Coil Face Area to 4.97sq.ft. 11.57 7.56 $711.25 $13.58 $9.74 -$15.22 $1879.33 3156 7,413 $896 0.83 $11,840 $10,580 $8,693 1.55 1.77 2.26

7 6+DemandDefrost 11.57 7.79 $722.75 $11.50 $9.74 -$15.22 $1909.81 3156 7,197 $878 0.95 $11,667 $10,433 $8,584 2.10 2.41 3.07

8 7+ Increase Indoor Coil Face Arm to 639sq.ft 11.94 8.02 $737.81 $15.06 $19.48 -$15.22 $1959.46 3057 6,987 $851 1.12 $11,425 $10,228 $8,435 2.50 2.87 3.66

9 8+ Outdoor Coil Grooved Tubes 12.25 8.06 $744.80 $6.99 $19.48 -$15.22 $1977.98 2981 6,952 $842 1.17 $11,338 $10,155 $8,381 2.47 2.83 3.61

10 9 + Reciprocating Compressor 10.92 EER 12.28 8.16 $751.55 $6.75 $19.48 -$15.22 $1995.87 2973 6,872 $834 1.23 $11,274 $10,101 $8,343 2.67 3.06 3.91

11 10+ Reciprocating Compressor : 11.26 EER 12.80 8 .37 $766.45 $14.90 $19.48 -$15.22 $2035.35 2853 6,693 $809 1.27 $ 11,032 $9,894 $ 8,190 2.72 3.11 3.97

12 11+Scroll Compresaor:11.50EER 13.35 8.39 $793.69 $27.24 $19.48 -$15.22 $2107.54 2735 6,683 $798 1.56 $10,982 $9,860 $8,179 3.08 3.52 4.50

13 12+Non-Bleed Thermostatic Expansion Valves 13.68 8 .60 $805.64 $11.95 $19.48 -$15.22 $2139.21 2668 6,517 $779 1.57 $10,795 $9,700 $8,061 3 .16 3.61 4.61

14 13 + Increase Indoor Coil Face Area to 750 sq.ft. 13.90 8.64 $815.93 $10.29 $27.09 -$15.22 $2174.08 2627 6,487 $773 1.68 $10,764 $9,677 $8,050 3.34 3.82 4.88

15 14 + Increase Outdoor Coll Face Area to 21.00 sq.ft. 14.33 8.76 $841.25 $25.32 $67.35 -$15.22 $2281.44 2548 6,399 $758 2.03 $10,713 $9,646 $8,049 3.97 4.55 5.80

16 15 + Outdoor ECM Fan Motor 14.48 8.94 $913.94 $72.69 $67.35 -$7.61 $2481.68 2522 6,271 $745 2.71 $10,768 $9,720 $8,150 5.47 6.27 8.00

17 16 + Increase Indoor Coil Tube Density to 4 rows 14.57 8.97 $935.07 $21.13 $67.35 47.61 $2537.68 2506 6,247 $742 2.89 $10,787 $9,743 $8,181 5.84 6.69 8.54

18 17 + Inoesse Outdoor Coil Face Area to 27.00 sq.ft. 14.82 9.05 $960.33 $25.26 $107.61 -$7.61 $2644.87 2463 6,192 $734 3.21 $10,801 $9,769 $8,224 6.44 7.37 9.41

19 18+Indoor ECMFanMotor 15.52 9.21 $1,101.44 $141.11 $107.61 $8.01 $3034.44 2352 6,087 $715 4.38 $10,987 $9,982 $8,475 8.59 9.83 12.55

20 19+ Electronic Expansion Valve 15.72 9.26 $1,149.78 $48.34 $107.61 $16.99 $3171.52 2322 6,054 $710 4.77 $11,065 $10,067 $8,572 9.32 10.67 13.62

21 20+Two-Speed Recip-Compreasor System 16.87 9.32 $1,326.99 $177.21 $107.61 $30.72 $3654.85 2165 6,015 $693 6.09 $11,363 $10,388 $8,928 11.26 12.89 16.45

22 20+Variablo-SpeedRecip-Ccsnpressor System 16.98 9.73 $1,738.32 $588.54 $107.61 $76.14 3479030 2150 5,760 $670 9.13 $12,245 $11,302 $9,890 17.95 20.55 26.24

23 20+Two-Speed Scroll-Compressor System 17.41 9.82 $1,637.90 $488.12 $107.61 $71.75 $4519.80 2097 5,706 3661 8.08 $11,873 $10,943 $9,550 15.77 18.06 23.06

24 20+Variable-Speed Scroll-Coen rS en 19.12 10.51 $1,787.86 $638.08 $107.61 $78.31 $4923.75 1909 5333 $614 8.13 $11,749 $10,886 $9,593 16.16 18.50 23.62

Assumptions:

1 Electricity cost - 0.085 $/kWh (avenge cost in 1999 obtained from an interpolation of the 1995 and 2000 prices of electricity forecast in DOE's Annual Energy Outlook 1993, inflated

to 1992 dollars). The interpolated value for 1999 is 0.082 $)kWh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price enduse factor for CAC is 1.0 (no adjustment).

2 Lifetime -15 years. Markup factor - 2.65.

3 Baseline unit includes:

Indoor Coil : 3.55 aq ft.,13 finahrtch, Wavy Fins, 3 tube rows, Groove Tubes

Outdoor Coil: 15.00 sq.ft., 20 fma(mch, Slit Fins, 1 tube row, Smooth Tubes

Compxessor: Reciprocating, 10.80 EER (nominal); Accumulator

Indoor Fan Moto: PSC, 58.5% efficient

Outdoor Fan Motor: PSC, 58.5% efficient

Enhancement Devices: None

4 All Two-Speed and Variable-Speed Compressor Systems include an Accumulator.

5 Maximum Sensible Heat Ratio - 75.7%

6 Installation and maintenance costs are total differential costs from the baseline unit.

7 Non-Bleed Thermostatic Expansion Valves replace the need for a Time Delay Relay and an Accumulator.

$ Evaporator ECM Fan Motor is modulated Cost of fan motor includes electronic modulating controls.

9 Condenser ECM Fan Motor is run at a single speed.

f EE-RM-93-801 COMMENT 0AA

Life Cycle Costs and Payback Periods of 3olon, Split System Central Heat Pump 

Draft Version 

Incr. Differential Differential Installed Annual Elec Use Annual Cumul. Lifecycle Costs 

SEER HSPF Manufr Manufr Installation Maintenance consumer Cooling Heating Energy Payback 

iLcvcl Dcaign Option Cost Cost Cost Cost COlt cost Period (1992$) 

BtuhNI BtuhNI (1992$) (1992$) (1992S) (1992$) (1992$) kWh/yr kWh/yr (1992$) (yean) 4% 6% 

0 Buclinc. 10.00 6.89 $677.00 - $0.00 $0.00 $1794.05 3651 8,132 $999 NA $12,899 $11,495 

1 0+ Indoor Coil Slit Fins 10.12 6.99 $677.00 $0.00 $0.00 $0.00 $1794.05 3607 8,018 $985 0.00 $12,750 $11,364 

2 1 + Incrcuc Indoor Coil Fin Density to 14 fpi 10.15 7.02 $677.66 $0.66 $0.00 $0.00 $1795.80 3597 7,983 $981 0.10 $12,708 $11,328 

3 2 + More Efficlcnt Indoor PSC Fan Mocor (68.5%) l0A3 7.12 $684.87 $7.21 $0.00 -$7.61 $1807.30 3499 7,870 $964 0.38 S12,521 $11,166 

4 3 + TllDCI Delay RCIlay 10.74 7.27 $691.37 $6.50 $0.00 -$7.61 $1824.52 3401 7,710 $942 0.53 $12,295 $10,971 

5 4 + More Efficient Outdoor PSC Fan Motor (68.5% 10.84 7.36 $697.67 $6.30 $0.00 -$15.22 $1833.61 3367 7,615 $931 0.5S $12,183 $10,874 

6 5 + Incrcuc Indoor Coil Facc Area to 4.97 sq.ft. 11.57 7.56 $711.25 $13.58 $9.74 -$15.22 $1879.33 3156 7,413 $896 0.83 $11,840 $10,580 

7 6 + Demand Dciroet 11.57 7.79 $722.75 $11.50 $9.74 -$15.22 $1909.81 3156 7,197 $878 0.95 $11,667 $10,433 

8 7 + Incrcuc Indoor Coil Face Area to 6.39 sq.ft. 11.94 8.02 $737.81 $15.06 $19.48 -$15.22 $1959.46 3057 6,987 $851 1.12 $11,425 $10,228 

9 8 + Outdoor Coil Grooved Tubca 12.25 8.06 $744.80 $6.99 $19.48 -$15.22 $1977.98 2981 6,952 $842 1.17 $11 ,338 S10,155 

10 9 + Reciprocating Comprcnor.l0.92 EER 12.28 8.16 $751.55 $6.75 $19.48 -$15.22 $1995.87 2973 6,872 $834 1.23 $11,274 $10,101 

11 10 + Reciprocating Canp:caaor: 11.26 EER 12.80 8.37 $766.45 $14.90 $19.48 -$15.22 $2035.35 2853 6,693 $809 1.27 $11,032 $9,894 

12 11 + Scroll Canpxcgor: 11.SO EER 13.35 8.39 $793.69 $27.24 $19.48 -$15.22 $2107.54 2735 6,683 $798 1.56 $10,982 S9,860 

13 12 + Non-BIced Tbc:nnoatatic Expansion Valvea 13.68 8.60 $805.64 $11.95 $19.48 -$15.22 $2139.21 2668 6,517 $779 1.57 $10,795 $9,700 

14 13 + Inc:rcuo Indoor Coil Facc Area to 7.50 "l.ft. 13.90 8.64 $815.93 $10.29 $27.09 -$15.22 $2174.08 2627 6,487 $773 1.68 $10,764 $9,677 

15 14 + InClUJO Outdoor Coil Face Area to 21.00 .q.ft. 14.33 8.76 $841.25 $25.32 $67.35 -$15.22 $2281.44 2548 6,399 $758 2.03 $10,713 $9,646 

16 15 + Outdoor ECM Fan Motor 14.48 8.94 $913.94 $72.69 $67.35 -$7.61 $2481.68 2522 6,271 $745 2.71 S10,768 $9,720 

17 16 + In~ Indoor Coil Tube Density to 4 rows 14.57 8.97 $935.07 $21.13 $67.35 -$7.61 $2537.68 2506 6,247 $742 2.89 S10,787 $9,743 

18 17 + Inc:rcuo Outdoor Coil Face Area to 27.00aq.ft. 14.82 9.05 $960.33 $25.26 $107.61 -$7.61 $2644.87 2463 6,192 $734 3.21 $10,801 $9,769 

19 18 + Indoor ECM Fan Mocor 15.52 9.21 $1,101.44 $141.11 $107.61 $8.01 $3034.44 2352 6,087 $715 4.38 $10,987 $9,982 

20 19 + ElcctrooicExpIllllion Valve 15.72 9.26 $1,149.78 $48.34 $107.61 $16.99 $3171.52 2322 6,054 $710 4.77 $11,065 $10,067 

21 20 + Two-Speed Rccip-Comprcsaor SyltCm 16.87 9.32 $1,326.99 $177.21 $107.61 $30.72 $3654.85 2165 6,015 $693 6.09 $11,363 $10,388 

22 20 + Variablo-Spccd Rccip-Canp:caaor SyltCm 16.98 9.73 $1,738.32 $588.54 $107.61 $76.14 $4790.30 2150 5,760 $670 9.13 $12,245 $11,302 

23 20 + Two-Speed ScroU-Comprcasor System 17.41 9.82 $1,637.90 $488.12 $107.61 $71.75 $4519.80 2097 5,706 $661 8.OS $11,873 $10,943 

24 20 + Variablo-Spccd Scroll-CompIUSOr System 19.12 10.51 $1,787.86 $638.08 $107.61 $78.31 $4923.75 1909 5333 $614 8.13 $11,749 $10,886 

Assumptions; 

1 ElClClricity coat • 0.085 $/lcWh (average cost in 1999 obuincd from an interpolation of the 1995 and 2000 pricea of electricity fo=-st in DOE's Annual Energy Outlook 1993, inflated 

to 1992 dollm). The interpol&ted value for 1999 is 0.082 $t1<Wh (1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricity price cnduse factor for CAC is 1.0 (no adjustment). 

2 Lifetime -15 years. Matkup factor - 2.65. 

3 Baseline unit includea: 

Indoor Coil: 3.55 "l.ft., 13 fins/inch, Wavy FlIlJ, 3 tube rows, Groove Tubca 

Outdoor Coil: 15.00 "l.ft., 20 fins/inch, Slit Fins, 1 tube row, Smooth Tubca 

Compressor: Reciprocating, 10.80 EER (nominal); Accumulator 

Indoor Fan Motor: PSC, 58.5% efficient 

Outdoor Fan Motor: PSC, 58.5% efficient 

Enhancement Dcvicca: None 

4 All Two-Speed and Variablo-Speed Compn:saor Systcma include an Accumulator. 

5 Maximum Sensible Heat Ratio - 75.7% 

6 Installation and maintcnancc COIIIII'CI total differential COllI from the bucline unit 

7 Non-BIced Thermostatic Expansion Valves replacc the need for a Time Delay Relay and an Accumulator. 

8 Evaporator ECM Fan Motoris modulated. Cost of fan mowr includca electronic modulating controls. 

9 Coodrmcr ECM Fan Motor is run at a single speed. 

10% 

$9,391 

$9,289 

$9,261 

$9,137 

$8,987 

$8,914 

$8,693 

$8,584 

$8,435 

$8,381 

$8,343 

S8,190 

S8,179 

$8,061 

$8,050 

S8,049 

$8,150 

S8,181 

S8,224 

$8,475 

$8,572 

S8,928 

$9,890 

$9,550 

$9,593 

7/27/93 

Cumulative 

Cost of Cooserved Energy 

(ccntst1<Wh) 

4% 6% 10% 

NA NA NA 

0.00 0.00 0.00 

. 0.29 0.33 0.42 

0.78 0.90 1.14 

1.09 1.25 1.60 

1.25 1.43 1.83 

1.55 1.77 2.26 

2.10 2.41 3.07 

2.50 2.87 3.66 

2.47 2.83 3.61 

2.67 3.06 3.91 

2.72 3.11 3.97 

3.08 3.52 4.50 

3.16 3.61 4.61 

3.34 3.82 4.88 

3.97 4.55 5.80 

5.47 6.27 8.00 

5.84 6.69 8.54 

6.44 7.37 9.41 

8.59 9.S3 12.55 

9.32 10.67 13.62 

11.26 12.89 16.45 

17.95 20.55 26.24 

15.77 18.06 23.06 

16.16 18.50 23.62 
7/27/93

$13,000

$12,500

$12,000

$11,500

$11,000

$10,500 +

$10,000

$9,500

$9,000

$8,500

$8,000

$7,500

9.0

Life Cycle Cost for 3-ton Split System

Central Heat Pump : Draft

--0-- 4% discount rate

- - - - 6% discount rate

®- - - - 10% discount rate

13.0 15.0

SEER

19.0

H

21.0

,. EE-RM-93-801 COMMENT 0AA

$13,000 

$12,500 

$12,000 

$11,500 

$11,000 

-

~ 

~ $10,500 0) 

,.. -

0 $10,000 0 

.... 

$9,500 

$9,000 

$8,500 

$8,000 

$7,500 

9.0 11.0 

7/27/93 

Life Cycle Cost for 3-ton Split System 

Central Heat Pump: Draft 

-0-- 4% discount rate 

- - il - - 6% discount rate 

- - --.- - -- 10% discount rate 

, 

, 

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7/27/93

Life Cycle Cost for 3-ton Split System

Central Heat Pump: Draft

6% discount rate

22

24

9.0 13.0 15.0

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17.0

f

19.0 21.0

EE-RM-93-801 COMMENT 0AA

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$11,900 

$11,500 

$11,100 

- $10,700 o 

o 

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$10,300 

$9,900 

$9,500 

9.0 11.0 

7/27/93 

Life Cycle Cost for 3·ton Split System 

Central Heat Pump: Draft 

1--0-- 6% discount rate I 

13.0 

8 

15.0 

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22 

17.0 

24 

19.0 21.0 
EE-RM-93-801 COMMENT 0AA

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$21,000

$18,000

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9.0 10.0 11.0

713QW93

Life Cycle Cost for 5 -ton Split System

Central Ibd Pump-0

12.0

r

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130 14.0 15.0 16.0 17.0 M 190

EE-RM-93-801 COMMENT 0AA

$21.000 

$20,000 

$19JXX) 

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7130J93 

Life Cycle Cost for 5-ton Split System 

Central Heat Pomp: Draft 

-0--4$ discotmt rate 

- - is - - ~ dilCOUDtme 

- - - -.. - - - 1&;1, dbcoont Dl'e 

12.0 13.0 14.Q 

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15.0 16.0 11.0 18.0 19.0 . 
7

Life Cycle Cost for 5-ton Split System

C*Mr8l Heat Pump: Draft

$19,1000

T

1 $j (y1M)

$16yM

10

$15,000

9.0 10. 11.0 12.0 13.0 140

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7!30J93 

Life Cycle Cost for 5-toD Split System 

Central Beat Pump: Draft 

10 

12.0 13.0 14.0 

SEEIl 

15.0 16.0 

1 

17.0 18.0 19.0