## LAWRENCE BERKELEY LABORATORY Bldg: 90 Room: 4000 510 486-6493 

# September 23, 1993

MEMORANDUM TO: Barry Berlin, DOE FROM: Isaac Turiel, LBL RE: Enclosed please find LCC analyses for central air conditioners/heat pumps, boilers, and furnaces (only one product class). We expect to send you the two remaining classes for furnaces next week. If you have any questions please call me at your convenience. LAWRENCE BERKELEY LABORATORY 

## Bldg: 90 Room: 4000 510486-6493 

# September 23, 1993


# MEMORANDUM TO: Barry Berlin, DOE FROM: Isaac Turiel, LBL RE:

# Enclosed please find LCC analyses for central air conditioners/heat pumps, boilers, and furnaces (only one product class). We expect to send you the two remaining classes for furnaces next week. Ifyou have any questions please call me at your convenience.9/17/93 

### Life Cycle Costs and Payback Periods of 34on, Split System Central Air Conditioner

Level Design Option SEER Manufr Cost Incr.

Manufr Cost Installed Installation Maintenance Consum 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$) kWh( 1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 10.00 $474.00

- $972.71 $46.69 $2185.44 3427 $290 NA $5,415 $5,007 $4,395 NA NA NA 1 0+ Backward Inclined Indoor Blower 10.28 $474.04 $0.04 $972.71 $46.69 $2185.54 3337 $283 0.01 $5,330 $4,933 $4,337 0.01 0.01 0.01 2 1 + Evaporator Slit Fins 10.40 $474.13 $0.09 $972.71 $46. 69 $2185 .76 3297 $279 0.03 $5,292 $4,900 $4,311 0.02 0.03 0.03 3 2 + Reciprocating Compressor: 10.91 EER 11.34 $481.51 $7.38 $972.71 $46.69 $2203.91 3025 $256 0.54 $5,054 $4,694 $4,154 0.41 0.47 0.60 4 3 + More Efficient Condenser PSC Fan Motor (65.0%) 11.47 $486.46 $4.95 $972.71 $39.08 $2208.48 2990 $253 0.62 $5,026 $4,670 $4,136 0.47 0.54 0.69 5 4 + More Efficient Evaporator PSC Fan Motor (68.5% 11.73 $493.68 $7.22 $972.71 $31.47 $2218.63 2922 $248 0.78 $4,972 $4,624 $4,103 0.59 0.68 0.86 6 5+ Time Delay Relay 12.18 $500.18 $6.50 $972.71 $31.47 $2234.62 2815 $239 0.95 $4,888 $4,552 $4,050 0.72 0.83 1.06 7 6+ Condenser Grooved Tubes 12.62 $506.13 $5.95 $972.71 $31.47 $2249.26 2716 $230 1.06 $4,809 $4,485 $4,000 0.81 0.92 1.18 8 7 + Increase Evaporator Fin Density to 14 fpi 12.68 $506.88 $0.75 $972.71 $31.47 $2251.10 2704 $229 1.07 $4,800 $4,477 $3,995 0.82 0.94 1.19 9 8 + Scroll Compressor: 11.50 EER / Non-Bleed TXV 13.51 $543.29 $36.41 $972.71 $31.47 $2340.67 2538 $215 2.06 $4,732 $4,430 $3,977 1.57 1.80 2.29 10 9 + Increase Evaporator Face Area to 6.60 sq.ft. 14.40 $565.51 $22.22 $989.69 $31.47 $2412.31 2381 $202 2.56 $4,656 $4,373 $3,948 1.95 2.23 2.85 11 10 + Increase Condenser Face Area to 18.03 sq.ft. 15.19 $586.24 $20.73 $1024.25 $31.47 $2497.87 2257 $191 3.15 $4,625 $4,356 $3,953 2.40 2.75 3.51 12 11 + Increase Evaporator Face Area to 7.50 sq. ft. 15.37 $594.35 $8.11 $1030.42 $31.47 $2523.99 2230 $189 3.34 $4,626 $4,360 $3,962 2.54 2.91 3.72 13 12 + Increase Condenser Face Area to 28.33 sq. ft 15.82 $635.95 $41.60 $1099.53 $31.47 $2695.44 2167 $184 4.78 $4,738 $4,480 $4,093 3.64 4.17 5.32 14 13 + Evaporator ECM Fan Motor 16.40 $777.26 $141.31 $1099.53 $47.09 $3058.68 2091 $177 7.71 $5,029 $4,780 $4,407 5.88 6.73 8.59 15 14 + Electronic Expansion Valve 16.60 $853.43 $76.17 $1099.53 $56.07 $3255.04 2066 $175 9.27 $5,202 $4,955 $4,587 7.06 8.09 10.33 16 15 + Condenser ECM Fan Motor 16.75 $919.98 $66.55 $1099.53 $63.68 $3426.36 2047 $173 10.61 $5,355 $5,111 $4,746 8.09 9.26 11.82 17 16+Two-Speed Recip-Compressor System 18.20 $1,100.67 $180.69 $1099.53 $76.66 $3883.84 1884 $160 12.98 $5,659 $5,435 $5,098 9.90 11.33 14.47 18 16+ Variable-Speed Recip-Compressor System 18.58 $1,511.92 $591.94 $1099.53 $120.59 $4939.44 1846 $156 20.54 $6,679 $6,459 $6,129 15.66 17.93 22.89 19 16+Two-Speed Scroll-Compressor System 18.91 $1,411.92 $491.94 $1099.53 $116.22 $4689.07 1814 $154 18.30 $6,398 $6,182 $5,858 13.95 15.97 20.40 20 16+ Variable-Speed Scroll-Compressor System 21. 18 $1,561 .92 $641.94 $1099.53 $122.78 $5064.63 1619 $137 18.78 $6,590 $6,397 $6,108 14.32 16.39 20.93 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 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 = 2.46. 3 Baseline unit includes: Evaporator: 4.13 sq.fL, 13 fins/inch, Wavy Fins, 3 tube rows, Groove Tubes Condenser: 12.88 sq. ft, 20 fins/inch, Slit Fins, 1 tube row, Smooth Tubes Compressor: Reciprocating, 10.20 EER (nominal) Evaporator Fan Motor: PSC, 58.5% efficient Condenser Fan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay 5 Maximum Sensible Heat Ratio = 76.5% 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 9/17/93 

### LifeCycleCosts and 

### PaybackPeriodsof

### 3-t00,SplitSystemCentral Air Conditioner
Incr. Installed Annual Annual Cumul. Lifecycle Costs Cumulative SEER Manufr Manufr InstallationMaintenanceConsume; Elec. Energy Payback CostofConserved

### Energy Leve Design Option Cost Cost Cost Cost Cost 

### use cost Period (1992$) (cents/kWb) BtuhIW (1992$) (1992$) (1992$) (1992$) 0992$) kWh/vr 0992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 10.00 $474.00 $972.71 $46.69 $2185.44 3427 $290 NA $5,415 $5,007 $4,395 NA NA NA 1 0+ Backward Inclined Indoor Blower 10.28 $474.04 $0.04 $972.71 $46.69 $2185.54 3337 $283 0.01 $5,330 $4,933 $4,337 0.01 0.01 0.01 2 1 + Evaporator SlitFins 10.40 $474.13 $0.09 $972.71 $46.69 $2185.76 3297 $279 0.03 $5,292 $4,900 $4,311 .0.02 0.03 0.03 3 2 + Reciprocating Compressor: 10.91 EER 11.34 $481.51 $7.38 $972.71 $46.69 $2203.91 3025 $256 0.54 $5,054 $4,694 $4,154 0.41 0.47 0.60 4 3 + More Efficient CondenserPSCFan Motor (65.0%) 11.47 $486.46 $4.95 $972.71 $39.08 $2208.48 2990 $253 0.62 $5,026 $4,670 $4,136 0.47 0.54 0.69 5 4 + More EfficientEvaporator PSCFan Motor (68.5% 11.73 $493.68 $7.22 $972.71 $31.47 $2218.63 2922 $248 0.78 $4,972 $4,624 $4,103 0.59 0.68 0.86 6 5 + Time Delay Relay 12.18 $500.18 $6.50 $972.71 $31.47 $2234.62 2815 $239 0.95 $4,888 $4,552 $4,050 0.72 0.83 1.06 7 6 + Condenser Grooved Tubes 12.62 $506.13 $5.95 $972.71 $31.47 $2249.26 2716 $230 1.06 $4,809 $4,485 $4,000 0.81 0.92 1.18 8 7 + Increase EvaporatorFin Density to 14 fpi 12.68 $506.88 $0.75 $972.71 $31.47 $2251.10 2704 $229 1.07 $4,800 $4,477 $3,995 0.82 0.94 1.19 9 8 + Scroll'Compressor: 11.50

### EER 

### INon-Bleed 

### TXV 13.51 $543.29 $36.41 $972.71 $31.47 $2340.67 2538 $215 2.06 $4,732 $4,430 $3,977 1.57 1.80 2.29 10 9 + Increase EvaporatorFaceArea to 6.60 sq.ft. 14.40 $565.51 $22.22 $989.69 $31.47 $2412.31 2381 $202 2.56 $4,656 $4,373 $3,948 1.95 2.23 2.85 

### 11 10 + Increase CondenserFace Area to 18.03 sq.ft. 15.19 $586.24 $20.73 $1024.25 $31.47 $2497.87 2257 $191 3.15 $4,625 $4,356 $3,953 2.40 2.75 3.51 12 11 + Increase EvaporatorFaceArea to 7.50 sq.ft. 15::37 $594.35 $8.11 $1030.42 $31.47 $2523.99 2230 $189 3.34 $4,626 $4,360 $3,962 2.54 2.91 3.72 13 12+ Increase Condenser Face Area to 28.33 sq.ft. 15.82 $635.95 $41.60 $1099.53 $31.47 $2695.44 2167 $184 4.78 $4,738 $4,480 $4,093 3.64 4.17 5.32 14 13 + EvaporatorECM Fan Motor 16.40 $777.26 $141.31 $1099.53 $47.09 $3058.68 2091 $177 

# nl $5,029 $4,780 $4,407 5.88 6.73 8.59 15 14 + Electronic Expansion Valve 16.60 $853.43 $76.17 $1099.53 $56.07 $3255.04 2066 $175 9.27 $5,202 $4,955 $4,587 7.06 8.09 10.33 16 15 + CondenserECM Fan Motor 16.75 $919.98 $66.55 $1099.53 $63.68 $3426.36 2047 $173 10.61 $5,355 $5,111 $4,746 8.09 9.26 11.82 17 16+ Two-Speed Recip-Compressor System 18.20 $1,100.67 $180.69 $1099.53 $76.66 $3883.84 1884 $160 12.98 $5,659 $5,435 $5,098 9.90 11.33 14.47 18 16+ Variable-Speed Recip-Compressor System 18.58 $1,511.92 $591.94 $1099.53 $120.59 $4939.44 1846 $156 20.54 $6,679 $6,459 $6,129 15.66 17.93 22.89 19 16 + Two-Speed Scroll-Compressor System 18.91 $1,411.92 $491.94 $1099.53 $116.22 $4689.07 1814 $154 18.30 $6,398 $6,182 $5,858 13.95 15.97 20.40 20 16 + Variable-Speed Scroll-Compressor System 21.18 $1,561.92 $641.94 $1099.53 $122.78 $5064.63 1619 $137 18.78 $6,590 $6,397 $6,108 14.32 16.39 20.93 Assumptions:

1 Electricity cost

# = 0.085 $/kWb (average cost in 1999 obtained from an interpolation ofthe 1995 and 2000prices ofelectricity forecast in DOE'sAnnualEnergy Outlook 1993, inflated to 1992dollars). The interpolated value for 1999 is 0.082 $/kWb (1991$) or0.085 afteradjusting forinflationfrom 1991 to 1992. Theelectricitypriceenduse factor for CAC 

### is 1.0 (no adjustment). 2 Lifetime

# = IS years. Markup factor

# = 2.46. 3 Baseline unit includes: Evaporator: 4.13 sq.ft, 13 fms/inch, WavyFins, 3 tube rows, GrooveTubes Condenser: 12.88 sq.ft., 20 lins/inch, SlitFins, 1tuberow, Smooth Tubes Compressor: Reciprocating, 10.20EER (nominal) Evaporator Fan Motor: PSC, 58.5% efficient CondenserFan Motor: PSC, 55.0% efficient EnhancementDevices: None 4 Non-Bleed ThermostaticExpansion Valve replaces the need for aTimeDelay Relay 5 Maximum SensibleHeat Ratio

# = 76.5% 6 EvaporatorECM Fan Motor is modulated. Cost offan motor includes electronic modulating controls. 7 CondenserECM Fan Motor is run at a single speed.

# 9/17/93 

# Life Cycle Cost for 3

-ton Split System Central Air Conditioner $6,600
$6,200
$5,800
ds 

# $5,400 U U } 

# $5,000
$4,600 

# 6% discount rate 20

$4200 1 i i i i 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 20.0 21.0 22.0 SEER 

# $6,600
$6,200
$5,800

,-.. 

### fF.T N 0\ 0\ 

# o $5,400 U 

# U**~** 

# 9/17/93 

# Life Cycle Cost for 3-ton Split System Central Air Conditioner 

# 1-0-- 6% discount rate

# 1

o 18 20

$5,000 1 3 5 

# $4,600 6 13 

# $4,200 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 SEER

# 9/17/93 Life Cycle Cost for 3-ton Split System Central Air Conditioner

U U 

# a $5,000 $4,600 $4,200 

# $3,800 

# AnQ

' •o 

# 4% discount rate --^-- 6% discount rate - - - - 10% discount rate



# 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 SEER $7,000 $6,600 $6,200 $5,800



# --- V:r N 0"1 0"1

## ~ 

# $5,400 U U**~** 

# $5,000 A .66,.. 

# $4,600
+ ++, 

# $4,200 $3,800 

# 9.0 10.0 

# 9/17/93 

# Life Cycle Cost for 3-ton Split System Central Air Conditioner

--D-- 

# 4% discountrate

- - i:! - - 

# 6% discountrate

- - - - +- - - - 

# 10% discountrate

,**~** 1

## .~-**~** 

# -.--'*-----+ .A( 

# -----.-----

# .... 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 

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# " /' 1/ / / / / / 

## b.
/ ,+



# 19.0 20.0 21.0 22.09/17/93 

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

Level Design Option SEER Manufr Cost Incr.

Manufr Cost 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$) kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 10.01 $666.00

- $1494.33 $46.69 $3412.48 5783 $490 NA $8,862 $8,173 $7,141 NA NA NA 1 0 + Backward Inclined Indoor Blower 10.29 $666.02 $0.02 $1494.33 $46.69 $3412.54 5625 $477 0.00 $8,714 $8,043 $7,039 0.00 0.00 0.00 2 1 + Evaporator Slit Fins 10.38 $666.23 $0.21 $1494.33 $46.69 $3413.13 5576 $473 0.04 $8,668 $8,003 $7,008 0.03 0.03 0.04 3 2 + Scroll Compressor: 11.30 EER 11.88 $690.87 $24.64 $1494.33 $46.69 $3482.36 4871 $413 0.90 $8,073 $7,492 $6,623 0.69 0.79 1.01 4 3 +Time Delay Relay 12.34 $697.37 $6.50 $1494.33 $46.69 $3500.63 4689 $397' 0.95 $7,919 $7,361 $6,523 0.72 0.83 1.06 5 4 + More Efficient Evaporator PSC Fan Motor (68.5%) 12.65 $707.14 $9.77 $1494.33 $39.08 $3520.47 4573 $388 1.05 $7,830 $7,285 $6,469 0.80 0.92 1.17 6 5 + Non-Bleed Thermostatic Expansion Valve 12.97 $714.72 $7.58 $1494.33 $39.08 $3541.77 4462 $378 1.15 $7,746 $7,215 $6,418 0.88 1.01 1.29 7 6 + More Efficient Condenser PSC Fan Motor (65.0%) 13.09 $721.02 $6.30 $1494.33 $31.47 $3551.87 4420 $375 1.21 $7,718 $7,191 $6,402 0.92 1.05 1.35 8 7 + Increase Evaporator Fin Density to 14 fpi 13.14 $722.48 $1.46 $1494.33 $31.47 $3555.97 4405 $373 1.23 $7,708 $7,182 $6,396 0.94 1.07 1.37 9 8 + Increase Evaporator Face Area to 7.50 sq.ft. 13.53 $739.70 $17.22 $1504.62 $31.47 $3614.65 4276 $362 1.58 $7,644 $7,134 $6,371 1.21 1.38 1.76 10 9 + Condenser Grooved Tubes 13.69 $756.52 $16.82 $1504.62 $31.47 $3661.91 4226 $358 1.89 $7,644 $7,141 $6,386 1.44 1.65 2.11 11 10 + Increase Condenser Face Area to 36.50 sq.ft. 14.22 $850.40 $93.88 $1595.21 $31.47 $4016.30 4069 $345 4.16 $7,851 $7,366 $6,640 3.17 3.63 4.63 12 11 + Evaporator ECM Fan Motor 14.84 $1,030.66 $180.26 $1595.21 $47.09 $4538.45 3899 $330 7.05 $8,213 $7,748 $7,052 5.38 6.15 7.86 13 12+ Electronic Expansion Valve 15.04 $1,106.83 $76.17 $1595.21 $56.07 $4761.47 3847 $326 8.22 $8,387 $7,928 $7,242 6.27 7.17 9.16 14 13 + Condenser ECM Fan Motor 15.11 $1,179.53 $72.70 $1595.21 $63.68 $4973.37 3830 $325 9.43 $8,583 $8,126 $7,442 7.19 8.23 10.51 15 14+Two-SpeedRecip-CompressorSystem 16.76 $1,368.28 $188.75 $1595.21 $80.54 $5520.62 3452 $293 10.67 $8,773 $8,362 $7,746 8.13 9.31 11.89 16 14+ Variable-Speed Recip-Compressor System 17.67 $1,779.53 $600.00 $1595.21 $132.24 $6727.93 3275 $278 15.60 $9,815 $9,424 $8,840 11.89 13.62 17.39 17 14 + Two-Speed Scroll-Compressor System 17.02 $1,679.53 $500.00 $1595.21 $127.87 $6442.56 3400 $288 15.00 $9,646 $9,241 $8,634 11.44 13.09 16.72 18 1 14 + Variable-edScrolI-Com -Comprestem 19.62 $1,829.53 $650.00 $1595.21 $134.43 $6870.62 2949 $250 14.40 $9,649 $9,298 $8,772 10.97 12.56 16.04 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 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 = 2.81. 3 Baseline unit includes: Evaporator: 6.00 sq.ft., 13 fms/inch, Wavy Fins, 4 tube rows, Groove Tubes Condenser: 23.00 sq.ft., 20 fins/inch, Slit Fins, 2 tube rows, Smooth Tubes Compressor. Reciprocating, 10.49 EER (nominal); Accumulator Evaporator Fan Motor: PSC, 58.5% efficient Condenser Fan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay. 5 Maximum Sensible Heat Ratio = 76.5% 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 9/17/93 

## Lire Cycle Costs and Payback Periods orS-lon, Split System Central Air Conditioner
Incr. Installed Annual Annual Cumul. Lifecycle Costs Cumulative SEER Manufr Manufr InstallationMaintenance Consumer Elec. Energy Payback CostofConservedEnergy Leve Design Option Cost Cost Cost Cost Cost use cost Period (1992$) (centsllcWh) BtuhIW (1992$) (1992$) (1992$) (1992$) (1992$) kWhlyr (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 10.01 $666.00


# - $1494.33 $46.69 $3412.48 5783 $490 NA $8,862 $8,173 $7,141 NA NA NA 1 0+Backward Inclined Indoor Blower 10.29 $666.02 $0.02 $1494.33 $46.69 $3412.54 5625 $477 0.00 $8,714 $8,D43 $7,039 0.00 0.00 0.00 2 1 +Evaporator SlitFins 10.38 $666.23 $0.21 $1494.33 $46.69 $3413.13 5576 $473 0.04 $8,668 $8,003 $7,008 0.03 0.03 0.04 3 2 +Scroll Compressor: 11.30EER 11.88 $690.87 $24.64 $1494.33 $46.69 $3482.36 4871 $413 0.90 $8,073 $7,492 $6,623 0.69 0.79 1.01 4 3 +Time Delay Relay 12.34 $697.37 $6.50 $1494.33 $46.69 $3500.63 4689 $397 0.95 $7,919 $7,361 $6,523 0.72 0.83 1.06 5 4 +More EfficientEvaporatorPSC Fan Motor (68.5%) 12.65 $707.14 $9.77 $1494.33 $39.08 $352D.47 4573 $388 1.05 S7,830 S7,285 $6,469 0.80 0.92 1.17 6 5 +Non-BleedThermostaticExpansion Valve 12.97 S714.72 S7.58 S1494.33 S39.08 $3541.77 4462 $378 1.15 S7,746 S7,215 $6,418 0.88 1.01 1.29 7 6 +MoreEfficient CondenserPSC Fan Motor (65.0%) 13.09 S721.02 $6.30 $1494.33 $31.47 $3551.87 4420 $375 1.21 S7,718 $7,191 $6,402 0.92 1.05 1.35 8 7 +IncreaseEvaporator Fin Density to 14fpi 13.14 $722.48 $1.46 S1494.33 $31.47 $3555.97 4405 $373 1.23 S7,708 $7,182 $6,396 0.94 1.07 1.37 9 8 +Increase Evaporator Face Areato 7.50 

### sq.ft. 13.53 $739.70 S17.22 $1504.62 $31.47 $3614.65 4276 $362 1.58 S7,644 $7,134 $6,371 1.21 1.38
. 1.76 10 9 +Condenser GroovedTubes 13.69 S756.52 $16.82 S1504.62 $31.47 $3661.91 4226 $358 1.89 $7,644 $7,141 S6,386 1.44 1.65 2.11 

## 11 10 +Increase CondenserFace Area to 36.50 sq.ft. 14.22 $850.40 $93.88 S1595.21 S31.47 $4016.30 4069 S345**4.16~** 

### S7,851 S7,366 $6,640 3.17 3.63 4.63 12 11 +EvaporatorECMFanMotor 14.84 $1,030.66 $180.26 $1595.21 S47.09 $4538.45 3899 $330 7.05 $8,213 $7,748 $7,052 5.38 6.15 7.86 13 12 +Electronic Expansion Valve 15.04 SI,106.83 S76.17 $1595.21 S56.07 $4761.47 3847 $326 8.22 S8,387 $7,928 $7,242 6.27 7.17 9.16 14 13 +CondenserECMFan Motor 15.11 SI,179.53 $72.70 $1595.21 $63.68 $4973.37 3830 $325 9.43 $8,583 $8,126 $7,442 7.19 8.23 10.51 15 14 +Two-SpeedRecip-CompressorSystem 16.76 $1,368.28 $188.75 S1595.21 $80.54 $5520.62 3452 $293 10.67 S8,773 S8,362 S7,746 8.13 9.31 11.89 16 14+Variable-Speed Recip-Compressor System 17.67 SI,779.53 S600.00 S1595.21 $132.24 $6727.93 3275 S278 15.60 $9,815 S9,424 $8,840 11.89 13.62 17.39 17 14 +Two-Speed Scroll-Compressor System 17.02 $1,679.53 $500.00 $1595.21 S127.87 S6442.56 3400 $288 15.00 $9,646 $9,241 $8,634 11.44 13.09 16.72 18 14 +Variable-Speed Scroll-CompressorSystem 19.62 $1,829.53 $650.00 $1595.21 $134.43 $687D.62 

### 2949 $250 14.40 $9,649 $9,298 $8,772 10.97 12.56 16.04 Assumptions:

1 Electricity cost

# = 0.085 $IIcWh (average costin 1999 obtainedfrom aninterpolation ofthe 1995 and 2000prices ofelectricity forecast in DOE's Annual Energy Outlook 1993,inflated to 1992 dollars). The interpolated valuefor 1999 is 0.082 SIIcWh (1991S) or 0.085 after adjusting for inflationfrom 1991 to 1992. The electricity price endusefactor for CAC is 1.0 (no adjustment). 2 Lifetime = 

### 15 years. Markup factor =

### 2.81. 3 Baseline unit includes: Evaporator: 6.00 

### sq.ft., 13 fms/inch, Wavy Fins, 4tuberows, Groove Tubes Condenser: 23.00 sq.ft., 20 fins/inch, SlitFins, 2tuberows, Smooth Tubes Compressor: Reciprocating, 10.49 EER (nominal); Accumulator EvaporatorFan Motor: PSC, 58.5% efficient CondenserFan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-BleedThermostatic Expansion Valve replaces the needfor aTimeDelayRelay. 5 Maximum Sensible HeatRatio

# = 76.5% 6 EvaporatorECMFan Motor is modulated. Cost offan motorincludes electronic modulating controls. 7 CondenserECM Fan Motor is run at asingle speed.

# 9/17/93 

# Life Cycle Cost for 5-ton Split System Central Air Conditioner $9,500 18 $9,000

$7,500 

# 6% discount rate

$7,(}00 ,- i i r i {1-.i 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 

# SEER 

# $9,500

$9,000

.- $8,500 V1- f'l 0'1 0'1

.**~**

'-' 

# u 

# u**~** $8,000

$7,500

$7,000 9.0 9/17/93 

# Life Cycle Cost for 5·ton Split System Centra') Air Conditioner 

# I----D-- 6% discount rate 

# I

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# 2

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# 5



# 10.0 11.0 12.0 

# 13.0 14.0 15.0 16.0 

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17.0 18.0 19.0 20.0

# 9/17/93 

# Life Cycle Cost for 5

-ton Split System Central Air Conditioner

U $7,800 $7,400 $7,000 $6,600 4% discount rate - - - - 6% discount rate

10% discount rate



# $6,200 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 SEER $9,800 $9,400 $9,000 $8,600

,.-.,**~**

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# $8,200 0\**~** '-' 

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# u**~** 

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# Life Cycle Costfor 5·ton Split System Central Air Conditioner

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# 13.0 14.0 15.0 16.0 

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### Life Cycle Costs and Payback Periods of 3-ton, Split System Central Heat Pump 9/17/93

In Installed Annual Elec Use Annual Cumul. Lifecycle Costs Cumulative SEER HSPF Manufr Manuf'r Installation Maintenance consumer Cooling Heating Energy Payback Coat of Conserve! Energy Level Design Option Cost Cost cost Coat cost cost Period (1992$) (cents/kWh) Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 10.00 6.89 $677.00

- $902.53 $46.69 $2743.27 3651 8,132 $999 NA $13,848 $12,444 $10,340 NA NA NA 1 0+ Backward Inclined Indoor Blower 10.30 7.00 $677.00 $0.00 $902.53 $46.69 $2743.27 3544 8,011 $979 0.00 $13,633 $12,256 $10,193 0.00 0.00 0.00 2 1+Indoor Coil Slit Fins 10.43 7.11 $677.03 $0.03 $902.53 $46.69 $2743.35 3500 7,889 $965 0.00 $13,476 $12,119 $10,085 0.00 0.01 0.01 3 2 + Increase Indoor Coil Fin Density to 14 fpi 10.47 7.13 $677.69 $0.66 $902.53 $46.69 $2745.10 3486 7,858 $962 0.05 $13,435 $12,083 $10,058 0.10 0.11 0.15 4 3 + More Efficient Indoor PSC Fan Motor (68.5%) 10.72 7.22 $684.89 $7.20 $902.53 $39.08 $2756.57 3406 7,760 $946 0.25 $13,279 $11,948 $9,955 0.49 0.56 0.71 5 4 + More Efficient Outdoor PSC Fan Motor (65.0% 10.83 7.32 $691.19 $6.30 $90253 $31.47 $2765.66 3372 7,658 $935 0.35 $13,160 $11,845 $9,876 0.72 0.82 1.05 6 5 + Time Delay Relay 11.17 7.47 $697.69 $6.50 $902.53 $31.47 $2782.88 3268 7,506 $913 0.46 $12,937 $11,652 $9,729 0.93 1.06 136 7 6+Reciprocating Compressor.11.26EER 11.69 7.68 $708.68 $10.99 $902.53 $31.47 $281200 3125 7,295 $883 0.59 $12,632 $11,390 $9,530 1.17 1.34 1.72 8 7 + Increase Indoor Coil Face Area to 4.97 sq.ft 12.41 7.97 $72205 $13.37 $912.27 $31.47 $2857.17 2941 7,037 $846 0.74 $12,261 $11,071 $9,290 1.44 1.65 2.11 9 8 + Demand Defrost 12.41 8.20 $733.55 $11.50 $91227 $31.47 $2887.65 2941 6,832 $828 0.85 $12,098 $10,933 $9,188 1.83 2.09 2.67 10 9+Outdoor Coil Grooved Tubes 12.73 8.24 $740.52 $6.97 $91227 $31.47 $2906.12 2869 6,803 $820 0.91 $12,021 $10,868 $9,142 1.87 2.14 2.74 11 10+ Increase Indoor Coil Face Area to 6.39 aq.ft. 13.12 8.40 $755.60 $15.08 $92201 $31.47 $2955.82 2782 6,674 $802 1.08 $11,868 $10,741 $9,052 2.20 2.52 3.22 12 11 + Scroll Compressor. 11.50 EER 13.70 8.50 $774.58 $18.98 $92201 $31.47 $3006.12 2665 6,591 $785 1.23 $11,729 $10,626 $8,974 2.40 2.74 3.50 13 12 + Non-Bleed Thermostatic Expansion Valves 14.04 8.73 $787.03 $12.45 $922.01 $31.47 $3039.11 2600 6,422 $765 1.26 $11,541 $10,466 $8,855 2.53 2.90 3.70 14 13 + Increase Outdoor Coil Face Area to 21.00 sq.8 14.78 9.06 $811.89 $24.86 $96227 $31.47 $3145.25 2471 6,184 $734 1.52 $11,302 $10,270 $8,725 3.06 3.51 4.48 15 14 + Increase Indoor Coil Face Area to 7.50 sq.ft 15.00 9.13 $822.19 $10.30 $969.88 $31.47 $3180.16 2434 6,139 $727 1.61 $11,259 $10,238 $8,707 3.23 3.70 4.72 16 15 + Increase Indoor Coil Tube Density to 4 rows 15.12 9.20 $844.58 $22.39 $969.88 $31.47 $3239.49 2416 6,092 $721 1.79 $11,257 $10,243 $8,724 3.61 4.13 5.28 17 16+ Increase Outdoor Coil Face Area to 30.00 sq.ft 15.48 9.32 $890.19 $45.61 $1030.27 $31.47 $3420.75 2359 6,018 $710 2.35 $11,314 $10,316 $8,821 4.71 5.40 6.89 18 17 + Outdoor ECM Fan Motor 15.59 9.45 $96289 $72.70 $1030.27 $39.08 $3621.01 2343 5,935 $702 2.95 $11,422 $10,435 $8,958 6.03 6.91 8.82 19 18 + Electronic Expansion Valve 15.79 9.50 $1,011.23 $48.34 $1030.27 $48.06 $3758.09 2313 5,904 $696 3.36 $11,502 $10,522 $9,055 6.82 7.81 9.97 20 19+ Indoor ECM Fan Motor 16.36 9.56 $1,152.53 $141.30 $1030.27 $63.68 $4148.16 2232 5,865 $686 4.50 $11,779 $10,814 $9,368 8.91 10.19 13.02 21 20+Two-Speed Recip-CompressorSystem 17.90 9.60 $1,332.79 $180.26 $1030.27 $77.62 $4639.79 2040 5,837 $668 5.73 $12,062 $11,124 $9,718 10.59 1212 15.47 22 20+Variable-Speed Recip-Compressor System 18.24 10.01 $1,744.04 $591.51 $1030.27 $123.47 $5775.45 2002 5,601 $644 8.56 $12,941 $12,034 $10,677 16.54 18.93 24.17 23 20+Two-Speed Scroll-Compressor System 18.48 10.19 $1,644.04 $491.51 $1030.27 $119.10 $5506.08 1976 5,500 $634 7.57 $12,552 $11,661 $10,326 14.84 16.99 21.69 24 20+Variable-Speed Scroll-Compressor System 20.83 11.01 $1,794.04 $641.51 $1030.27 $125.66 $5910.14 1753 5,089 $580 7.56 $12,358 $11,543 $10,321 15.00 17.18 21.93 Asatanotions: 1 Electricity cost

- 0.085 S/kWh (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 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 sq.ft, 13 fns/inch, Wavy Fins, 3 tube rows, Groove Tubes Outdoor Coil: 15.00 sq.ft, 20 fins/inch, Slit Fins, I tube row, Smooth Tubes Compressor. Reciprocating, 10.80 EER (nominal); Accumulator Indoor Fan Motor: PSC, 58.5% efficient Outdoor Fan Motor. PSC, 55.0% efficient Enhancement Devices: None 4 All Two- Speed and Variable-Speed Compressor Systems include an Accumulator. 5 Maximum Sensible Heat Ratio = 76.5% 6 Non-Bleed Thermostatic Expansion Valves replace the need for & Time Delay Relay and an Accumulator. 7 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 8 Condenser ECM Fan Motor is run at a single speed. 

### Life Cycle Costs and Payback Periodsof3-ton,SplitSystem Central HeatPump
Incr. Installed AnnualElec Use Annual Cumul. lifecycleCosts SEER 

### HSPF Manufr Manuf'r Installation Maintenance consumer Cooling Heating Energy Payback Leve Design Option Coo Cost Coo Cost cost cost Period (1992$) Btuh/W Btuh/W (1992$) (1992$) (1992$) (1992$)**(l9~2$)** kWh/yr kWh/yr (1992$) (yearn) 4% 6% 0 Baseline 10.00 6.89 $677.00 $902.53 $46.69 $2743.27 3651 8,132 $999 NA $13,848 $12,444 1 0+BackwanllnclinedIndoorBlower 10.30 7.00 $677.00 $0.00 $902.53 $46.69 $2743.27 3544 8,011 $979 0.00 $13,633 $12,256 2 1

### +IndoorCoilSlit

### Fms 10.43 7.11 $677.03 $0.03 $902.53 $46.69 $2743.35 3500 7,889 $965 0.00 $13,476 $12,119 3 2 +Increase IndoorCoilFin Densityto 14fpi 10.47 7.13 $677.69 $0.66 $90253 $46.69 $2745.10 3486 7,858 $962 0.05 $13,435 $12,083 4 3 

### +More EfficientIndoorPSC Fan Motor (68.5%) 10.72 7.22 $684.89 $7.20 $902.53 $39.08 $2756.57 3406 7,760 $946 0.25 $13,279 $11,948 5 4 +More Efficient OutdoorPSC Fan Motor (65.0% 10.83 7.32 $691.19 $6.30 $90253 $31.47 $2765.66 3372 7,658 $935 0.35 $13,160 $11,845 6 5 

### +TimeDelayRelay 11.17 7.47 $697.69 $6.50 $902.53 $31.47 $2782.88 3268 7,506 $913 0.46 $12,937 $11,652 7 6 

### +Reciprocating Compressor: 11.26EER 11.69 7.68 $708.68 $10.99 $902.53 $31.47 $281200 3125 7,295 $883 0.59 $12,632 $11,390 8 7 

### +Increase IndoorCoil Face Area to 4.97 sq.ft. 12.41 7.97 $72205 $13.37 $912.27 $31.47 $2857.17 2941 7,037 $846 0.74 $12,261 $11,071 

### 9 8

### +Demand Defrost 12.41 8.20 $733.55 $11.50 $91227 $31.47 $2887.65 2941 6,832 $828 0.85 $12,098 $10,933 10 9 

### +OutdoorCoil Grooved Tubes 12.73 8.24 $740.52 $6.97 $91227 $31.47 $2906.12 2869 6,803 $820 0.91 $12,021 $10,868 11 10+ IncreaseIndoorCoil Face Area to 6.39 sq.fL 13.12 8.40 $755.60 $15.08 $92201 $31.47 $2955.82 2782 6,674 $802 1.08 $11,868 $10,741 12 11 + Scroll Compressor: 11.50EER 13.70 8.50 $774.58 $18.98 $922.01 $31.47 $3006.12 2665 6,591 $785 1.23 $11,729 $10,626 13 12 +Non-BleedThermostatic Expansion Valves 14.04 8.73 $787.03 $12.45 $92201 $31.47 $3039.11 2600 6,422 $765 1.26 $11,541 $10,466 14 13 

### +Increase OutdoorCoil Face Area to21.00 sq.ft 14.78 9.06 $811.89 $24.86 $962.27 $31.47 $3145.25 2471 6,184 $734 1.52 $11,302 $10,270 15 14 

### +Increase IndoorCoil Face Areato 7.50 sq.ft. 15.00 9.13 $822.19 $10.30 $969.88 $31.47 $3180.16 2434 6,139 $727 1.61 $11,259 $10,238 16 15 +Increase Indoor Coil TubeDensity to 4rows 15.12 9.20 $844.58 $22.39 $969.88 $31.47 $3239.49 2416 6,092 $721 1.79 $11,257 $10,243 17 16+ Increase Outdoor CoilFace Area to 30.00 sq.ft 15.48 9.32 $890.19 $45.61 $1030.27 $31.47 $3420.75 2359 6,018 $710 2.35 $11,314 $10,316 18 17 

### +OutdoorECM Fan Motor 15.59 9.45 $96289 $72.70 $1030.27 $39.08 $3621.01 2343 5,935 $702 2.95 $11,422 $10,435 19 18 

### +ElectronicExpansion V.lve 15.79 9.50 $1,011.23 $48.34 $1030.27 $48.06 $3758.09 2313 5,904 $696 3.36 $11,502 $10,522 20 19 

### +IndoorECM Fan Motor 16.36 9.56 $1,152.53 $141.30 $1030.27 $63.68 $4148.16 2232 5,865 $686 4.50 $11,779 $10,814 21 20 

### +Two-Speed Recip-CompressorSystem 17.90 9.60 $1,332.79 $180.26 $1030.27 $77.62 $4639.79 2040 5,837 $668 5.73 $12,062 $11,124 22 20

### +Variable-SpeedRecip-CompressorSystem 18.24 10.01 $1,744.04 $591.51 $1030.27 $123.47 $5775.45 2002 5,601 $644 8.56 $12,941 $12,034 23 20

### +Two-Speed Scroll-CompressorSystem 18.48 10.19 $1,644.04 $491.51 $1030.27 $119.10 $5506.08 1976 5,500 $634 7.57 $12,552 $11,661 24 20+ Variable-Speed Scroll-CompressorSystem 20.83 11.01 $1,794.04 $641.51 $1030.27 $125.66 $5910.14 1753 5,089 $580 7.56 $12,358 $11,543 AssumJ1ljoos:

1 Electricity cost _ 0.085 $/kWh (average costin 1999 obtained from an interpolation ofthe 1995 and 2000prices ofelectricity forecast 

### in DOE's Annual Energy Outlook 1993,inflated to 1992 dolllIll). The interpolated value for1999 is 0.082 $/kWh (1991$) or0.085 afteradjusting for inflation

### from 1991 to 1992. The electricityprice endusefactor for CAC is 1.0 (no adjustment). 2 Lifetime = 15 yesrs. Markup factor = 2.65. 3 Baselineunit includes: Indoor Coil: 3.55 

### sq.fL, 13 flIlSlinch, Wavy Fins, 3 tube rows, GrooveTubes OutdoorCoil: 15.00 

### sq.ft.,20fins/inch, SlitFins, 1tube row, Smooth Tubes Compressor: Reciprocating, 10.80 EER (nominal); Accumulator IndoorFan Motor: PSC, 58.5% efficient OutdoorFan Motor: PSC, 55.0% efficient EnhancementDevices: None 4 AllTwo-Speed and Variable-Speed CompressorSystems include an Accumulator. 5 Maximum Sensible Heat Ratio = 76.5% 6 Non-Bleed Thennostatic Expansion Valves replace the need for.Time Delay Relay and an Accumulator. 7 EvaporatorECM Fan Motor is modulated. Costoffan motorincludes electronic modulating controls. 8 Condenser ECM Fan Motor is run at a single speed. 10% $10,340 $10,193 $10,085 $IO.os8 $9,955 $9,876 $9,729 $9,530 $9,290 $9,188 $9,142 $9,052 $8,974 $8,855 $8,725 $8,707 $8,724 $8,821 $8,958 $9,055 $9,368 $9,718 $10,677 $10,326 $10,321 9/17/93

Cumulative CostofConserved Energy (ccnts,lkWh) 4% 6% 10% NA NA NA 0.00 0.00 0.00 0.00 0.01 0.01 0.10 0.11 0.15 0.49 0.56 0.71 0.72 0.82 1.05 0.93 1.06 1.36 1.17 1.34 1.72 1.44 1.65 2.11 1.83 2.09 2.67 1.87 2.14 2.74 2.20 2.52 3.22 2.40 2.74 3.50 2.53 2.90 3.70 3.06 3.51 4.48 3.23 3.70 4.72 3.61 4.13 5.28 4.71 5.40 6.89 6.03 6.91 8.82 6.82 7.81 9.97 8.91 10.19 13.02 10.59 1212 15.47 16.54 18.93 24.17 14.&4 16.99 21.69 15.00 17.18 21.93

# 9/17/93 

# Life Cycle Cost for 3-ton Split System Central Heat Pump $12,500

$12,000

-. $11,500 1 99-



# $10,500

$10,000 { 

# 6% discount rate

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 SEER $12,500 0

$12,000
6

.- $11,500 7Y'l

### N 

### 0'1 0'1 ,...j '-' 

## U U ...J 

# $11,000

$10,500

$10,000 9.0 10.0 11.0 12.0 9/17/93 

# Life Cycle Costfor 3-ton Split System Central HeatPump 

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

# 1

10 11 20 12 13
17 15
13.0 14.0 15.0 16.0 17.0 

# SEER 22

23 24

18.0 19.0 20.0 21.0

# 9/17/93 

# Life Cycle Cost for 3

-ton Split System

Central Heat Pump $14,000 $13,500 $13,000 $12,500 $12,000 CNN $11,500 ON
v 

# A 4% discount rate - - - - 6% discount rate ® 10% discount rate

U $11,000 11, 

# $10,500 $10,000 'o. $9,500 $9,000 0 o-®o - $8 500 1 , 11 

# / / / 

# / / /

9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 SEER 10.0 11.0 12.0 9/17/93 

# Life Cycle Costfor 3·ton Split System Central Heat Pump

----0---- 

# 4% discountrate

- - il - - 

# 6% discountrate

- -- -.- - - - 10% discountrate

, , ,



# 13.0 

# 14.0 15.0 16.0 17.0 

# SEER 18.0 19.0 20.0 21.0

### Life Cycle Costs and Payback Periods of 5-ton, Split System Central Heat Pump 9/20/93

Incr. Differential Differential Installed Annual Eloc 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 Cost cost cost cost cost Period (1992$) (cetts/kWh) Bruh/W Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10%6 0 Baseline 10.00 7.09 $934.00

- $1161.54 $46.69 $3954.19 5798 13,556 $1,640 NA $22,193 $ 19,886 $16,431 NA NA NA 1 0 + Backward Inclined Indoor Blower 10.30 7.21 $934.03 $0.03 $1161.54 $46.69 $3954.28 5629 13,328 $1,607 0.00 $21,820 $19,560 $16,176 0.00 0.01 0.01 2 1+Indoor Coil Slit Fins 10.38 7.27 $934.25 $0.22 $1161.54 $46.69 $3954.93 5584 13,211 $1,593 0.02 $21,667 $19,427 $16,072 0.03 0.04 0.05 3 2+ Time Delay Relay 10.68 7.40 $940.75 $6.50 $1161.54 $46.69 $3974.04 5429 12,981 $1,560 0.25 $21,323 $19,129 $15,842 0.48 0.55 0.71 4 3 + Scroll Compressor. 11.30 EER 12.30 7.80 $965.13 $24.38 $1161.54 $46.69 $4045.71 4715 12,320 $1,444 0.47 $20,100 $18,069 $15,028 0.76 0.87 1.11 5 4 + More Efficient Outdoes PSC Fan Motor (65.0% 12.42 7.89 $971.43 $6.30 $1161.54 $39.08 $4056.62 4666 12,176 $1,428 0.48 $19,929 $17,922 $14,915 0.81 0.93 1.19 6 5 + Increase Indoor Coil Fin Density to 14 fpi 12.46 7.93 $973.16 $1.73 $1161.54 $39.08 $4061.71 4653 12,117 $1,421 0.49 $19,865 $17,866 $14,873 0.84 0.97 1.23 7 6 + More Efficient Indoor PSC Fan Motor (68.5%) 12. 81 8.04 $982.92 $9.76 $1161.54 $31.47 $4082.80 4525 11,946 $1,396 0.53 $19,605 $17,642 $14,702 0.91 1.04 1.33 8 7 + Demand Defrost 12.81 8.29 $994.42 $11.50 $116154 $31.47 $4116.61 4525 11,598 $1,367 0.59 $19,311 $17,389 $14,511 1.15 1.31 1.68 9 8+Non-Blood Thermostatic Expansion Valves 13.13 8.53 $1,016.08 $21.66 $1161.54 $31.47 $4180.29 4415 11,266 $1,329 0.73 $18,958 $17,089 $14,290 1.47 1.68 2.15 10 9 + Increase Indoor Coil Face Area to 7.50 sq.ft. 13.51 8.63 $1,033.92 $17.84 $1171.83 $31.47 $4243.03 4292 11,137 $1,308 0.87 $18,783 $16,944 $14,190 1.73 1.97 2.52 11 10+ Outdoor Coil Grooved Tubes 13.71 8.66 $1,048.28 $14.36 $1171.83 $31.47 $4285.25 4229 11,102 $1,299 0.97 $18,733 $16,906 $14,169 1.90 2.17 2.78 12 11 + Increase Outdoor Coil Face Area to 36.50 sq.ft 14.36 8.98 $1,174.26 $125.98 $1285.90 $31.47 $4769.70 4037 10,704 $1,249 2.09 $18,662 $16,905 $14,273 4.17 4.77 6.09 13 12+ Electronic Expansion Valve 14.56 9.03 $1,222.60 $48.34 $1285.90 $40.45 $4920.80 3982 10,645 $1,240 2.41 $18,705 $16,961 $14,350 4.79 5.48 7.00 14 13 + Outdoor ECM Fan Motor 14.63 9.13 $1,295.30 $72.70 $1285.90 $48.06 $5142.15 3963 10,527 $1,228 2.88 $18,797 $17,070 $14,484 5.82 6.67 8.51 15 14+ Indoor ECM Fan Motor 15.35 9.22 $1,475.55 $180.25 $1285.90 $63.68 $5687.71 3778 10,419 $1,203 3.97 $19,066 $17,374 $14,840 7.72 8.84 11.28 16 15 + Two-Speed Recip-Compressor System 16.98 9.23 $1,664.30 $188.75 $1285.90 $80.83 $6259.78 3415 10,409 $1,172 4.92 $19,287 $17,639 $15,171 8.70 9.96 12.72 17 15 + Variable-Speed Recip- Compressor System 17.16 9.78 $2,075.55 $600.00 $1285.90 $133.11 $7521.14 3378 9,831 $1,120 6.85 $19,969 $18,394 $16,037 13.26 15.18 19.38 18 15+Two-Speed Scroll-Compressor System 17.30 10.02 $1,975.55 $500.00 $1285.90 $128.74 $7222.77 3352 9,586 $1,097 6.01 $19,415 $17,873 $15,564 12.02 13.76 1757 19 15+Variable-Speed Scroll-Compressor S stem 19.16 10.31 $2,125.55 $650.00 $1285.90 $135.29 $7670.32 3026 9,322 $1,047 6.26 $19,306 $17,835 $15,631 12.06 13.80 17.62
As sumptions: 1 Electricity cost = 0.085 $/kWh (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 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 = 2.94. 3 Baseline unit includes: Indoor Coil: 6.00 sq.ft., 13 frnslmch, Wavy Fins, 4 tube rows, Groove Tubes Outdoor Coil: 19.5 sq.ft., 20 fmsfrnch, Slit Fins, 2 tube rows, Smooth Tubes Compressor. Reciprocating, 10.49 EER (nominal); Accumulator Indoor Fan Motor: PSC, 58.5% efficient Outdoor Fan Motor. PSC, 55.0% efficient Enhancement Devices: None 4 Maximum Sensible Heat Ratio = 76.5% 5 Non-Bleed Thermostatic Expansion Valves replace the need for a Time Delay Relay; Accumulator still required due to excess refrigerant. 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 

### Life Cycle Costs and Payback Periods of5-ton, Split System CentralHeat Pump
Incr. Differential Differential Installed Annual

### Eloc Usc Annual 

### Cumul. LifocycleCOI!t8 SEER HSPF 

### Manufr Manufr Installatioo Maintenance Consumer Cooling Heating Energy Payback Level Design Option Cost COBt C06l C06l Cost COBt Period (1992$) BtuhIW Btuh/W (1992S) (1992$) (1992$) (1992$) (1992S) kWh/yr kWh/yr 

### (1992$) (years) 4% 6% 0 Baseline 10.00 7.09 $934.00 $1161.54 $46.69 $3954.19 5798 13,556 $1,640 NA $22,193 $19,886 I 0+ BackwardInclined IndoorBlower 10.30 7.21 $934.03 $0.03 $1161.54 $46.69 $3954.28 5629 13,328 $1,607 0.00 $21,820 $19,560 2 I +IndoorCoil SlitFm. 10.38 7.27 $934.25 $0.22 $1161.54 $46.69 $3954.93 5584 13,211 $1,593 0.02 $21,667 $19,427 3 2 +Tunc

### DeIlY Relay 10.68 7.40 $940.75 $6.50 $1161.54 $46.69 $3974.04 5429 12,981 $1,560 0.25 $21,323 $19,129 4 3 +

### Scroll Compressor. II.30 EER 12.30 7.80 $965.13 S24.38 $1161.54 $46.69 $4045.71 4715 12,320 $1,444 0.47 $20,100 $18,069 5 4 + 

### More Efficient Outdoor PSC Fan Motor (65.0% 12.42 7.89 $971.43 $6.30 $1161.54 $39.08 $4056.62 4666 

### 12,176 $1,428 0.48 $19,929 $17,922 6 5 +Incte&sc Indoor Coil Fin Density to 

### 14 fpi 12.46 7.93 $973.16 $1.73 $1161.54 $39.08 $4061.71 4653 12,117 $1,421 0.49 $19,865 $17,866 7 6 +

### More Efficient IndoorPSC Fan Motor (68.5%) 12.81 8.04 S982.92 $9.76 $1161.54 $31.47 $4082.80 4525 11,946 $1,396 0.53 $19,605 $17,642 8 7 +Demand Defrost 12.81 8.29 $994.42 SI1.50 $1161.54 $31.47 $4116.61 4525 II,598 $1,367 0.59 S19,311 $17,389 9 8 +Non-Bleed Thermostatic Expansion Valves 13.13 8.53 $1,016.08 $21.66 $1161.54 $31.47 $4180.29 4415 11,266 $1,329 0.73 $18,958 $17,089 10 9 +

### IncreascIndoorCoilFaceArea to 7.50 sq.ft. 13.51 8.63 $1,033.92 $17.84 $1171.83 $31.47 $4243.03 4292 11,137 $1,308 0.87 $18,783 $16,944 II 10+OutdoorCoil Grooved Tubes 13.71 8.66 $1,048.28 S14.36 $1171.83 $31.47 $4285.25 4229 11,102 $1,299 0.97 $18,733 $16,906 12 II +IncrcueOutdoor Coil FaceArea to 36.50 sq.ft 14.36 8.98 $1,174.26 $125.98 S1285.90 $31.47 $4769.70 4037 10,704 $1.249 2.09 S18,662 SI6,905 13 12 +Electronic Expansioo Valve 14.56 9.03 $1,222.60 $48.34 $1285.90 $40.45 $4920.80 3982 10,645 $1,240 2.41 SI8,705 $16,961 14 13 + OutdoorECMFan Motor 14.63 9.13 $1,295.30 $72.70 $1285.90 $48.06 $5142.15 3963 10,527 $1,228 2.88 $18,797 $17,070 15 14 +IndoorECMFan Motor 15.35 9.22 $1,475.55 $180.25 $1285.90 $63.68 $5687.71 3778 10,419 SI,203 3.97 $19,066 $17,374 16 15 +Two-Speed Recip-CompressorSystem 16.98 9.23 $1,664.30 $188.75 $1285.90 $80.83 $6259.78 3415 10,409 $1,172 4.92 $19,287 $17,639 17 15 +Variable-Speed Recip-CompressorSystem 17.16 9.78 $2,075.55 S600.00 $1285.90 $133.11 $7521.14 3378 9,831 $1,120 6.85 $19,969 $18,394 18 15 +Two-Speed Scroll-CompressorSystem 17.30 10.02 $1,975.55 S500.00 $1285.90 $128.74 $7222.77 3352 9,586 $1,097 6.01 $19,415 $17,873 19 15 +Variable-Speed_Scroll-Coml'.tC8sorSystem 19.16 10.31 S2,125.55 S650.00 $1285.90 $135.29 $7670.32 3026 9,322 $1,047 6.26 $19,306 $17,835 Assumptirns;

1 Electricity cost
- 0.085 $/kWh (average costin 1999 obtained 

### from an interpolation ofthe 1995 and 2000pricesofelectricity forecast in DOE',Annual Energy Outlook. 1993,inflated to 

### 1992dollartl). Theinterpolated value for 1999 is 

### 0.082 $/kWh (1991 $) 

### or0.085 afteradjusting for inflation from 1991 to 1992. Theelectricityprice .ndusefactor for CAC is 

### 1.0 (no adjustment). 2 Lifetime

- 15 years. Mmup factor = 

### 2.94. 3 Baseline unit includes; IndoorCoil; 6.00sq.ft., 13 f1nslinch, Wavy FlI1S,4 tube rows, GrooveTubes OutdoorCoil; 19.5 sq.ft., 20fmslinch, SlitFms, 2tuberows, SmoothTubes Compressor: Reciprocating, 10.49 EER (nominal); Accumulator IndoorFan Motor; PSC, 58.5% efficient
. OutdoorFan Motor: PSC, 55.0% efficient EnhancementDevices; None 4 Maximum SensibleHeatRatio =

### 76.5% 5 Non-Bleed ThClmOstatiCExpansion Valves replacethe need for.TimeDelayRelay; Accumulator still requlred 

### dueto 

### excessrefrigeranL 6 EvaporatorECMFan Motor is

### modulated. Cost offan motorincludes electronicmodulating controls. 7 CondenserECMFan Motor is 

### run at a single speed. 10% $16.431 $16,176 $16,072 $15,842 $15,Q28 $14,915 $14,873 $14,702 $14,511 $14,290 $14,190 $14,169 $14,273 $14,350 $14,484 $14,840 $15,171 SI6,037 S15,564 $15,631 9/20/93



### Cumulative C06l of

### ConservedEnergy (cenlS/kWh) 4% 6% 10% NA NA NA 0.00 0.01 0.01 0.03 0.04 0.05 0.48 0.55 0.71 0.76 0.87 1.11 0.81 0.93 1.19 0.84 0.97 1.23 0.91 1.04 1.33 1.15 1.31 1.68 1.47 1.68 2.15 1.73 1.97 2.52 1.90 2.17 2.78 4.17 4.77 6.09 4.79 5.48 7.00 5.82 6.67 8.51 7.72 8.84 11.28 8.70 9.% 12.72 13.26 15.18 19.38 12.02 13.76 17.57 12.06 13.80 17.62

# 9/20/93 

# Life Cycle Cost for 5

-ton Split System

Central Heat Pump $20,000 $19,500 $19,000
$18,500 $18,000 

# 6% discount rate

19 $17,500
$17,000 

# 12 $16,500 -} ' ' ' I I ' '

9.0 10.0 11
.0 12.0 13.0 14.0 15
.0 16.0 17.0 18.0 19.0 20.0 SEER $20,000
$19,500
$19,000**~** 

# $18,500 0'\ 0'\**~** '-' 

# u**~** $18,000
$17,500
$17,000
$16,500 

# o

3

9.0 10.0 11.0 9/20/93 

# Life Cycle Cost for 5-ton Split System Central Heat Pump 

# I-II-- 6% discount rate

# I

17 4
l1li 

# 18 7 

# 8 9 14
111-- 

# 10 12
12.0 13.0 14.0 15.0 16.0 17.0 

# SEER 18.0 19.0 20.0

# 9/20/93 

# Life Cycle Cost for 5-ton Split System

Central Heat Pump $22,500 $21,500 $20,500 $19,500 n
U $17,500 a $16,500 $15,500 $14,500 IL 's&--Z^,

®®- ®`-®-®--- ®" 

## --A



# $13,500 1 r ; i- T -- 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 20.0 SEER 4% discount rate 

# - - - - 6% discount rate ® 10% discount rate

0 

# $22,500 $21,500 $20,500 $19,500

.- Y3-

## ~ 

# $18,500 C"I ...-1 

# -- U 

# $17,500 U**~** 

# $16,500 + 

# $15,500 $14,500 $13,500 9.0 10.0 11.0 9/20/93 

# Life Cycle Cost for 5·ton Split System Central Heat Pump

-0-- 

# 4% discountrate

- - -6
- - 

# 6% discountrate

- - - -+- - - - 

# 10% discountrate

-+ , - -+
-+

## ~- 

# ---

# -:

# ;

# ;-, -, " 

### '-'. '

# .. ' 

### - 

## ,+**~** 

### = - - 

## -+ 

# + ....-



# " -+"



# + ' -+-+ - - - 

## -+


# 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 

# SEER 20.09/20/93 

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

Level Design Option SEER Manuf'r Cost Incr.

Manufr Cost Installed Installation Maintenance Consume 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$) kWh/ (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 9.70 $474.00

- $972.71 $46.69 $1957.92 3533 $299 NA $5,288 $4,867 $4,236 NA NA NA 1 0 + Backward Inclined Indoor Blower 9.97 $474.04 $0.04 $972.71 $46.69 $1958.00 3440 $292 0.01 $5,200 $4,790 $4,176 0.01 0.01 0.01 2 1 + Evaporator Slit Fins 10.09 $474.13 $0.09 $972.71 $46.69 $1958.18 3399 $288 0.02 $5,161 $4,756 $4,149 0.02 0.02 0.03 3 2+ Reciprocating Compressor: 10.91 EER 11.00 $481.51 $7.38 $972.71 $46.69 $1972.79 3118 $264 0.42 $4,911 $4,540 $3,983 0.32 0.37 0.47 4 3 + More Efficient Condenser PSC Fan Motor (65.0%) 11.12 $486.46 $4.95 $972.71 $39.08 $1974.98 3083 $261 0.45 $4,880 $4,513 $3,962 0.34 0.39 0.50 5 4 + More Efficient Evaporator PSC Fan Motor (68.5% 11.38 $493.68 $7.22 $972.71 $31.47 $1981.67 3013 $255 0.54 $4,821 $4,462 $3,924 0.41 0.47 0.60 6 5+ Time Delay Relay 11.81 $500.18 $6.50 $972.71 $31.47 $1994.54 2902 $246 0.68 $4,730 $4,384 $3,866 0.52 0.60 0.76 7 6 + Condenser Grooved Tubes 12.25 $506.13 $5.95 $972.71 $31.47 $2006.32 2800 $237 0.78 $4,645 $4,311 $3,812 0.59 0.68 0.87 8 7 + Increase Evaporator Fin Density to 14 fpi 12.30 $506.88 $0.75 $972.71 $31.47 $2007.80 2788 $236 0.79 $4,635 $4,303 $3,805 0.60 0.69 0.88 9 8 + Scroll Compressor: 11.50 EER / Non-Bleed TXV 13.11- $543.29 $36.41 $972.71 $31.47 $2079.89 2616 $222 1.57 $4,545 $4,234 $3,767 1.20 1.37 1.75 10 9+ Increase Evaporator Face Area to 6.60 sq.fL 13.97 $565.51 $22.22 $989.69 $31.47 $2140.87 2455 $208 2.00 $4,454 $4,162 $3,724 1.53 1.75 2.23 11 10 + Increase Condenser Face Area to 18.03 sq.fL 14.74 $586.24 $20.73 $1024.25 $31.47 $2216.48 2327 $197 2.53 $4,409 $4,132 $3,717 1.93 2.21 2.82 12 11 + Increase Evaporator Face Area to 7.50 sq.ft. 14.91 $594.35 $8.11 $1030.42 $31.47 $2238.70 2299 $195 2.68 $4,406 $4,132 $3,721 2.05 2.34 2.99 13 12 + Increase Condenser Face Area to 28.33 sq. ft. 15.35 $635.95 $41.60 $1099.53 $31.47 $2390.18 2234 $189 3.93 $4,496 $4,230 $3,831 2.99 3.43 4.38 14 13 + Evaporator ECM Fan Motor 15.91 $777.26 $141.31 $1099.53 $47.09 $2685.59 2155 $183 6.23 $4,717 $4,460 $4,075 4.75 5.44 6.94 15 14 + Electronic Expansion Valve 16.10 $853.43 $76.17 $1099.53 $56.07 '$2845.39 2129 $180 7.46 $4,852 $4,598 $4,218 5.69 6.51 8.31 16 15 + Condenser ECM Fan Motor 16.25 $919.98 $66.55 $1099.53 $63.68 $2984.77 2109 $179 8.51 $4,973 $4,721 $4,345 6.49 7.43 9.48 17 16 + Two-Speed Recip-Compressor System 17.66 $1,100.67 $180.69 $1099.53 $76.66 $3355.52 1942 $165 10.36 $5,185 $4,954 $4,607 7.90 9.04 11.54 18 16+ Variable-Speed Reci p- Compressor System 18.03 $1,511.92 $591.94 $1099.53 $120.59 $4213.72 1902 $161 16.31 $6,006 $5,779 $5,440 12.44 14.24 18.18 19 16+Two-Speed Scroll-Compressor System 18.35 $1,411.92 $491.94 $1099.53 $116.22 $4011.35 1869 $158 14.56 $5,773 $5,550 $5,216 11.10 12.70 16.22 20 16+ Variable-Speed Scroll-Com pressor System 20.55 $1,561.92 $641.94 $1099.53 $122.78 $4314.91 1668 $141 14.91 $5,887 $5,688 $5,390 11.37 13.01 16.62 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 = 1.98. 3 Baseline unit includes: Evaporator: 4.13 sq.fL, 13 fins/inch, Wavy Fins, 3 tube rows, Groove Tubes Condenser: 12.88 sq. ft, 20 finsfinch, Slit Fins, 1 tube row, Smooth Tubes Compressor: Reciprocating, 10.20 EER (nominal) Evaporator Fan Motor: PSC, 58.5% efficient Condenser Fan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay 5 Maximum Sensible Heat Ratio = 76.5% 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 9/20/93 

### Life Cycle Costs and Payback Periods of

### 3-ton, Single PackageSystem Central Air Conditioner
Incr. Installed Annual Annual Cumul. Lifecycle Costs Cumulative SEER Manu[r Manu[r Installation MaintenanctConsumeJ Elec. Energy Payback Cost ofConservedEnergy Leve Design Option Cost Cost Cost Cost Cost use cost Period (1992$) (cenlS/kWh) 

### BtuhIW (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 9.70 $474.00 $972.71 $46.69 $1957.92 3533 $299 NA $5,288 $4,867 $4,236 NA NA NA 1 0+ Backward Inclined Indoor Blower 9.97 $474.04 $0.04 $972.71 $46.69 $1958.00 3440 $292 0.01 $5,200 $4,790 $4,176 0.01 0.01 0.01 2 1 + Evaporator SlitFins 10.09 $474.13 $0.09 $972.71 $46.69 $1958.18 3399 $288 0.02 $5,161 $4,756 $4,149 0.02 0.02 0.Q3 3 2 + Reciprocating Compressor: 10.91 EER 11.00 $481.51 $7.38 $972.71 $46.69 $1972.79 3118 $264 0.42 $4,911 $4,540 $3,983 0.32 0.37 0.47 4 3 + More Efficient CondenserPSCFan Motor (65.0%) 11.12 $486.46 $4.95 $972.71 $39.08 $1974.98 3083 $261 0.45 $4,880 $4,513 $3,962 0.34 0.39 0.50 5 4 + MoreEfficientEvaporatorPSCFan Motor (68.5% 11.38 $493.68 $7.22 $972.71 $31.47 $1981.67 3013 $255 0.54 $4,821 $4,462 $3,924 0.41 0.47 0.60 6 5 + TimeDelay Relay 11.81 $500.18 $6.50 $972.71 $31.47 $1994.54 2902 $246 0.68 $4,730 $4,384 $3,866 0.52 0.60 0.76 7 6 + Condenser Grooved Tubes 12.25 $506.13 $5.95 $972.71 $31.47 $2006.32 2800 $237 0.78 $4,645 $4,311 $3,812 0.59 0.68 0.87 8 7 + IncreaseEvaporatorFinDensity to 14 fpi 12.30 $506.88 $0.75 $972.71 $31.47 $2007.80 2788 $236 0.79 $4,635 $4,303 $3,805 0.60 0.69 0.88 9 8 + Scroll Compressor: 1 I.50 EER/ Non-Bleed TXV 13.11' $543.29 $36.41 $972.71 $31.47 $2079.89 2616 $222 1.57 $4,545 $4,234 $3,767 1.20 1.37 1.75 10 9 + Increase Evaporator Face Area to 6.60 

### sq.fi. 13.97 $565.51 $22.22 $989.69 $31.47 $2140.87 2455 $208 2.00 $4,454 $4,162 $3,724 1.53 1.75 2.23 11 10+ Increase Condenser Face Area to 18.03 sq.ft 14.74 $586.24 $20.73 $1024.25 $31.47 $2216.48 2327 $197 2.53 $4,409 $4,132 $3,717 1.93 2.21 2.82 12 11 + Increase EvaporatorFace Area to 7.50 sq.ft 14.91 $594.35 $8.11 $103D.42 $31.47 $2238.70 2299 $195 2.68 $4,406 $4,132 $3,721 2.05 2.34 2.99 13 12 + Increase Condenser Face Area to 28.33 sq.ft 15.35 $635.95 $41.60 $1099.53 $31.47 $2390.18 2234 $189 3.93 $4,496 $4,230 $3,831 2.99 3.43 4.38 14 13 + Evaporator ECM Fan Motor 15.91 $777.26 $141.31 $1099.53 $47.09 $2685.59 2155 $183 6.23 $4,717 $4,460 $4,075 4.75 5.44 6.94 15 14 + Electronic Expansion Valve 16.10 $853.43 $76.17 $1099.53 $56.07 $2845.39 2129 $180 7.46 $4,852 $4,598 $4,218 5.69 6.51 8.31 16 15 + CondenserECMFan Motor 16.25 $919.98 $66.55 $1099.53 $63.68 $2984.77 2109 $179 8.51 $4,973 $4,721 $4,345 6.49 7.43 9.48 17 16 + Two-Speed Recip·Compressor System 17.66 $1,100.67 $180.69 $1099.53 $76.66 $3355.52 1942 $165 10.36 $5,185 $4,954 $4,607 7.90 9.04 11.54 18 16+ Variable-Speed Recip-Compressor System 18.03 $1,511.92 $591.94 $1099.53 $120.59 $4213.72 1902 $161 16.31 $6,006 $5,779 $5,440 12.44 14.24 18.18 19 16 + Two-Speed Scroll·Comprc.%or System 18.35 $1,411.92 $491.94 $1099.53 $116.22 $4011.35 1869 $158 14.56 $5,773 $5,550 $5,216 11.10 12.70 16.22 20 16+ Variable-Speed Scroll-Compressor SJ'Stcm 20.55 $1,561.92 $641.94 $1099.53 $122.78 $4314.91 1668 $141 14.91 $5,887 $5,688 $5,390 11.37 13.01 16.62 ASSlUDpljQI\Ij;

1 Electricity cost

# = 0.085 $/kWh (average cost in 1999 obtained from an interpolation ofthe 1995 and 2000 prices ofelectricity forecast in DOE's Annual Energy Outlook 1993, inflated to 1992dollars). The interpolated value for 1999 is 0.082 $/kWh (1991$) or0.085 aneradjusting for inflationfrom 1991 to 1992. The electricityprice enduse factor for CAC is 1.0 (no adjuslment). 2 Lifetime

# =15 years. Markup factor

# =1.98. 3 Baseline unit includes: Evaporator; 4.13 sq.fl, 13 flOS/inch, Wavy Fins, 3 tuberows, Groove Tubes Condenser: 12.88 sq.fl, 20 fms/inch, SlitFins, 1tube row, Smooth Tubes Compressor: Reciprocating, 10.20EER (nominal) EvaporatorFanMotor: PSC, 58.5% efficient CondenserFan Motor: PSC, 55.0% efficient EnhancementDevices: None 4 Non-Bleed Thermostatic Expansion Valve replaces the need for a TimeDelay Relay 5 Maximwn SensibleHeat Ratio =76.5% 6 EvaporatorECM Fan MOlor is modulated. Cost offan motor includes electronic modulating controls. 7 CondenserECM Fan Motor is run at a single speed.

# 9/20/93 

# Life Cycle Cost for 3-ton Single Package System

Central Air Conditioner $6,000

$5,600

$4,400

$4,000 - 

# 6% discount rate

I 12

f - 

# I { 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 SEER $6,000 9/20/93 

# Life Cycle Cost for 3-ton Single Package System Central Air Conditioner

18 

# $5,600 

# 1---0- 6% discount rate

# 1

__ $5,200 fFt**~** 

### 0'1 0'1 .-( '-' 

# u 0 U 

# 1 ....:l 

# $4,800 16 3 5 $4,400 6 9 10 

# 11 13 12 $4,000 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 

# SEER 20

19.0 20.0 21.0

# 9/20/93 

# Life Cycle Cost for 3-ton Single Package System

Central Air Conditioner



# a $6,000
$5,600
$5,200

$4,400
$4,000 A

# I^A 4% discount rate - - - - 6% discount rate - - - - 10% discount rate



# $3,600 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 SEER ,-.,. f:h 

### N 

### 0'1 0'1 

# $6,000
$5,600
$5,200



# e $4,800 

# u u**~** 

# $4,400
$4,000
$3,600 9.0 

# 10.0 11.0 9/20/93 

# Life Cycle Cost for 3·ton Single Package System Central Air Conditioner

-0--- 

# 4% discountrate

- - il - - 

# 6% discountrate

- - - - +- - - - 

# 10% discountrate

, 

# + ,**-~-** 

## -----+---- , ---+.-----+.+ 

# 12.0 13.0 14.0 15.0 16.0 17.0 18.0 

# SEER 19.0 20.0 21.09/20/93 

## Life Cycle Costs and Payback Periods of 5-ton, Single Package System Central Air Conditioner

Leve

### l Design Option 

### SEER Manufr Cost Incr.

Manufr Cost 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$) 

### kWb/yr (1992$) (years) 4% 

### 6% 10% 4% 6% 10% 

### 0 Baseline 9.71 $666.00

- $1494.33 $46.69 $3046.18 5962 $505 NA $8,664 $7,954 $6,890 NA NA NA 1 0 + Backward Inclined Indoor Blower 9.98 $666.02 $0.02 $1494.33 $46.69 $3046.23 5799 $492 0.00 $8,511 $7,820 $6,785 0.00 0.00 0.00 2 1 +Evaporator Slit Fins 10.07 $666.23 $0.21 $1494.33 $46.69 $3046.70 5748 $487 0.03 $8,464 $7,779 $6,753 0.02 0.03 0.03 3 2 + Scroll Compressor: 11.30 EER 11.52 $690.87 $24.64 $1494.33 $46.69 $3102.39 5022 $426 0.71 $7,835 $7,237 $6,340 0.54 0.62 0.79 4 3 + Time Delay Relay 11.97 $697.37 $6.50 $1494.33 $46.69 $3117.08 4834 $410 0.74 $7,672 $7,096 $6,233 0.57 0.65 0.83 5 4 + More Efficient Evaporator PSC Fan Motor (68.5%) 12.27 $707.14 $9.77 $1494.33 $39.08 $3131.55 4714 $400 0.81 $7,574 $7,013 $6,171 0.62 0.70 0.90 6 5+Non-Bleed Thermostatic Expansion Valve 12.58 $714.72 $7.58 $1494.33 $39.08 $3148.68 4599 $390 0.89 $7,483 $6,935 $6,114 0.68 0.77 0.99 7 6 + More Efficient Condenser PSC Fan Motor (65.0%) 12.70 $721.02 $6.30 $1494.33 $31.47 $3155.31 4557 $386 0.92 $7,450 $6,907 $6,093 0.70 0.80 1.02 8 7 + Increase Evaporator Fin Density to 14 fpi 12.74 $722.48 $1.46 $1494.33 $31.47 $3158.60 4542 $385 0.93 $7,439 $6,897 $6,087 0.71 0.82 1.04 9 8 + Increase Evaporator Face Area to 7.50 sq.ft. 13.13 $739.70 $17.22 $1504.62 $31.47 $3207.81 4408 $374 1.23 $7,362 $6,836 $6,050 0.94 1.07 1.37 10 9 + Condenser Grooved Tubes 13.28 $756.52 $16.82 $1504.62 $31.47 $3245.83 4356 $369 1.47 $7,351 $6,832 $6,054 1.12 1.28 1.64 

### 11 10 + Increase Condenser Face Area to 36.50 sq.ft. 13.79 $850.40 $93.88 $1595.21 $31.47 $3548.58 4195 $356 3.36 $7,502 $7,002 $6,253 2.56 2.93 3.74 12 11 + Evaporator ECM Fan Motor 14.40 $1,030.66 $180.26 $1595.21 $47.09 $3971.59 4019 $341 5.62 $7,759 $7,280 $6,563 4.29 4.91 6.26 13 12 + Electronic Expansion Valve 14.59 $1,106.83 $76.17 $1595.21 $56.07 $4152.72 3966 $336 6.54 $7,890 $7,417 $6,709 4.99 5.71 7.29 14 13 + Condenser ECM Fan Motor 14.66 $1,179.53 $72.70 $1595.21 $63.68 $4324.63 3947 $335 7.49 $8,044 $7,574 $6,869 5.71 6.53 8.34 15 14+Two-SpeedRecip-CompressorSystem 16.27 $1,368.28 $188.75 $1595.21 $80.54 $4768.06 3557 $302 8.45 $8,120 $7,696 $7,061 6.44 7.37 9.42 16 14+ Variable-Speed Recip-Compressor System 17.14 $1,779.53 $600.00 $1595.21 $132.24 $5749.19 3376 $286 12.33 $8,930 $8,528 $7,925 9.40 10.76 13.74 17 14 + Two-Speed Scroll-Compressor System 16.52 $1,679.53 $500.00 $1595.21 $127.87 $5518.82 3504 $297 11.87 $8,821 $8,403 $7,778 9.05 10.36 13.23 18 1 14 Variable-Speed Scroll-Compressor System 19.04 $1,829.53 $650.00 $1595.21 $134.43 $5864.38 3039 $258 11.38 $8,728 $8,366 $7,824 8.67 9.93 12.68 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 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 = 2.26. 

### 3 Baseline unit includes: Evaporator: 6.00 sq.ft., 13 fins/inch, Wavy Fins, 4 tube rows, Groove Tubes Condenser: 23.00 sq.ft., 20 fins/inch, Slit Fins, 2 tube rows, Smooth Tubes Compressor. Reciprocating, 10.49 EER (nominal); Accumulator Evaporator Fan Motor: PSC, 58.5% efficient Condenser Fan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-Bleed Thermostatic Expansion Valve replaces the need for a Time Delay Relay. 5 Maximum Sensible Heat Ratio = 76.5% 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 9/20/93 

## Life Cycle Costs and Payback Periods ofSoton, 

## Single Package System CentralAirConditioner
Incr. Installed Annual Annual Cumul. LifecycleCosts Cumulative SEER Manufr Manufr Installation Maintenance Consumer Elec. Energy Payback CostofConserved Energy Leve Design Option Cost Cost Cost Cost Cost use cost Period (1992$) (centstkWh) Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 10% 0 Baseline 9.71 $666.00 

# - $1494.33 $46.69 $3046.18 5962 $505. NA $8,664 $7,954 $6,890 NA NA NA 

### I 

# o+Backward Inclined Indoor Blower 9.98 $666.02 $0.02 $1494.33 $46.69 $3046.23 5799 $492 0.00 $8,511 $7,820 $6,785 0.00 0.00 0.00 2 I 

### +Evaporator SlitFins 10.07 $666.23 $0.21 $1494.33 $46.69 $3046.70 5748 $487 0.03 $8,464 $7,779 $6,753 0.02 0.03 0.03 3 2

### +Scroll Compressor: 11.30EER 11.52 $690.87 $24.64 $1494.33 $46.69 $3102.39 5022 $426 0.71 $7,835 $7,237 $6,340 0.54 0.62 0.79 4 3

### +Time DelayRelay 11.97 $697.37 $6.50 $1494.33 $46.69 $3117.08 4834 $410 0.74 $7,672 $7,096 $6,233 0.57 0.65 0.83 5 4 

### +MoreEfficientEvaporatorPSCFanMotor (68.5%) 12.27 $707.14 $9.77 $1494.33 $39.08 $3131.55 4714 $400 0.81 $7,574 $7,013 $6,171 0.62 0.70 0.90 6 5 

### +Non-BleedThermostaticExpansion Valve 12.58 $714.72 $7.58 $1494.33 $39.08 $3148.68 4599 $390 0.89 $7,483 $6,935 $6,114 0.68 0.77 0.99 7 6 

### +More Efficient CondenserPSC FanMotor (65.0%) 12.70 $721.02 $6.30 $1494.33 $31.47 $3155.31 4557 $386 0.92 $7,450 $6,907 $6,093 0.70 0.80 1.02 8 7

### +IncreaseEvaporatorFinDensity to 14fpi 12.74 $722.48 $1.46 $1494.33 $31.47 $3158.60 4542 $385 0.93 S7,439 S6,897 $6,087 0.71 0.82 1.04 9 8

### +Increase Evaporator Face Area to 7.50 sq.ft. 13.13 $739.70 $17.22 S1504.62 $31.47 $3207.81 4408 S374 1.23 S7,362 S6,836 S6,050 0.94 1.07 1.37 10 9 

### +Condenser GroovedTubes 13.28 $756.52 $16.82 $1504.62 $31.47 S3245.83 4356 $369 1.47 $7,351 $6,832 $6,054 1.12 1.28 1.64 

### 11 10 

### +IncreaseCondenserFace Area to 36.50 sq.ft. 13.79 $850.40 $93.88 $1595.21 $31.47 $3548.58 4195 $356 3.36 $7,502 $7,002 $6,253 2.56 2.93 3.74 12 11 

### +Evaporator ECM Fan Motor 14.40 $1,030.66 $180.26 $1595.21 $47.09 $3971.59 4019 $341 5.62 $7,759 $7,280 $6,563 4.29 4.91 6.26 13 12 

### +Electronic Expansion Valve 14.59 $1,106.83 $76.17 $1595.21 $56.07 $4152.72 3966 $336 6.54 $7,890 $7,417 $6,709 4.99 5.71 7.29 14 13 

### +Condenser ECMFan Motor 14.66 $1,179.53 $72.70 $1595.21 $63.68 S4324.63 3947 $335 7.49 $8,044 $7,574 $6,869 5.71 6.53 8.34 15 14

### +Two-SpeedRecip-Compressor System 16.27 $1,368.28 $188.75 $1595.21 $80.54 S4768.06 3557 $302 8.45 $8,120 $7,696 $7,061 6.44 7.37 9.42 16 14

### +Variable-Speed Recip-Compressor System 17.14 $1,779.53 $600.00 $1595.21 $132.24 $5749.19 3376 $286 12.33 $8,930 $8,528 $7,925 9.40 10.76 13.74 17 14 

### +Two-Speed Scroll-Compressor System 16.52 $1,679.53 $500.00 $1595.21 $127.87 $5518.82 3504 $297 11.87 $8,821 $8,403 $7,778 9.05 10.36 13.23 18 14 

### +Variable-Speed Scroll-Compressor System 19.Q4 $1,829.53 $650.00 $1595.21 $134.43 $5864.38 3039 $258 11.38 $8,728 $8,366 $7,824 8.67 9.93 12.68 Assumptions:

1 Electricity cost

# = 0.085 $/kWh (average cost in 1999 obtainedfrom an interpolation ofthe 1995 and 2000prices ofelectricity forecast in DOE's Annual Energy Outlook 1993, inflated to 1992 dollars). The interpolated valuefor 1999 is 0.082 $/kWh(1991$) or 0.085 after adjusting for inflation from 1991 to 1992. The electricityprice enduse factor for CACis 1.0 (no adjustment). 2 Lifetime

# =15 years. Markup factor = 

### 2.26. 3 Baselineunit includes: Evaporator: 6.00 sq.ft., 13 fins/inch, Wavy Fins, 4 tube rows, Groove Tubes Condenser: 23.00 sq.ft., 20 fins/inch, SlitFins, 2 tube rows, SmoothTubes Compressor: Reciprocating, 10.49EER (nominal); Accumulator EvaporatorFan Motor: PSC, 58.5% efficient Condenser Fan Motor: PSC, 55.0% efficient Enhancement Devices: None 4 Non-BleedThermostatic Expansion Valve replaces the need for aTime Delay Relay. 5 Maximum Sensible Heat Ratio =.76.5% 6 EvaporatorECMFan Motor is modulated. Cost offan motor includes electronicmodulating controls. 7 Condenser ECM Fan Motor is run at a single speed.

# 9/20/93 

# Life Cycle Cost for 5

-ton Single Package System

Central Air Conditioner $8,700

$8,200

$7,200

$6,700 

# 6% discount rate

{ 8 / 11 

# 9 Liu 

# 10 17



# { { 18

{ ' d 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 SEER ,-.. 

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# $8,700

$8,200



# o $7,700 U U ....:l


# $7,200

$6,700 

# o

9.0 9/20/93 

# Life Cycle Cost for 5-ton Single Package System Central Air Conditioner

16 17 

# I---D- 6% discount rate

# I

1

# 2

10.0 3

11.0 4 6 8

12.0 13.0 12

11 

# 10 14.0 15.0 16.0 17.0 

# SEER 18

18.0 19.0 20.0

# 9/20/93 

# Life Cycle Cost for 5-ton Single Package System

Central Air Conditioner

a $9,000 -r-
$8,500 - -
$8,000

$7,000 --}--
$6,500 +
$6,000 9.0 4 

# N N 4% discount rate - - 6 - - 6% discount rate e- - - - 10% discount rate



# NN

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10.0 11.0 12.0 13.0 14.0 15.0 

# SEER 16.0 17.0 18.0 19.0 20.0 $9,000
$8,500
$8,000

$7,000
$6,500
$6,000 9.0 10.0 9/20/93 

# Life Cycle Cost

# for 5·ton Single Package System Central AirConditioner

-0-- 

# 4% discountrate

- - i! - - 

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- - --.- - - - 10% discountrate

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### Life Cycle Costs and Payback Periods of 5-ton, Single Package System Central Heat Pump 9/20/93

Incr. Differential Differential Installed Annual Eloc Use Annual Cumul. Iifocycle Costa Cumulative SEER HSPF Manufr Manufr Installation Maintenance Consumer Cooling Heating Energy Payback Cost ofConserved Energy Level Design Option Cost Cost Cost Cost cost cost Period (1992$) (cents/kWh) Bu1W BtuhIW (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr kWh/yr (1992$) (years) 4% 6% 10% 4% 6% 1056 0 Baseline 9.70 6.88 $934.00

- $1161.54 $46.69 $3412.47 5977 13,966 $1,690 NA $22,207 $19,830 $16,270 NA NA NA 1 0+ Backward Inclined Indoor Blower 9.99 7.00 $934.03 $0.03 $1161.54 $46.69 $3412.54 5803 13,732 $1,656 0.00 $21,823 $19,494 $16,007 0.00 0.00 0.01 2 1 + Indoor Coil Slit Fins 10.07 7.06 $934.25 $0.22 $1161.54 $46.69 $3413.06 5757 13,611 $1,642 0.01 $21,665 $19,357 $15,899 0.02 0.03 0.04 3 2 + T me Delay Relay 10.36 7.19 $940.75 $6.50 $1161.54 $46.69 $3428.40 5597 13,374 $1,608 0.19 $21,306 $19,045 $15,659 0.38 0.43 0.55 4 3 + Scroll Compressor . 11.30 EER 11.93 7.57 $965.13 $24.38 $1161.54 $46.69 $3485.94 4861 12,693 $1,488 0.36 $20,029 $17,937 $14,803 0.59 0.68 0.87 5 4 + More Efficient Outdoor PSC Fan Motor (65.0% 12.05 7.66 $971.43 $6.30 $1161.54 $39.08 $3493.19 4811 12,545 $1,471 0.37 $19,850 $17,781 $14,683 0.62 0.71 0.91 6 5 + Increase Indoor Coil Fm Density to 14 fpi 12.09 7.70 $973.16 $1.73 $1161.54 $39.08 $3497.28 4797 12,484 $1,465 0.38 $19,782 $17,723 $14,638 0.65 0.74 0.94 7 6 + More EfficientIndoor PSC Fan Motor (68.5%) 12.43 7.81 $982.92 $9.76 $1161.54 $31.47 $3512.71 4665 12,308 $1,439 0.40 $19,508 $17,485 $14,455 0.69 0.79 1.00 8 7 + Demand Defrost 12.43 8.04 $994.42 $11.50 $1161.54 $31.47 $3539.85 4665 11,950 $1,408 0.45 $19,197 $17,217 $14,251 0.87 1.00 1.28 9 8 +Non-Bleed Thermostatic Expansion Valves 12.74 8.28 $1,016.08 $21.66 $1161.54 $31.47 $3590.97 4551 11,608 $1,370 0.56 $18,819 $16,893 $14,008 1.13 1.29 1.65 10 9 + Increase Indoor Coil Face Area to 7.50 aq.R. 13.10 8.37 $1,033.92 $17.84 $1171.83 $31.47 $3643.36 4424 11,475 $1,348 0.67 $18,627 $16,732 $13,893 1.34 1.53 1.96 11 10+ Outdoor Coil Grooved Tubes 13.30 8.40 $1,048.28 $14.36 $1171.83 $31.47 $3677.25 4360 11,438 $1,339 0.75 $18,565 $16,682 $13,862 1 .47 1.69 2.15 12 11 + Increase Outdoor Coil Face Area to 36.50 sq.ft 13.93 8.71 $1,174.26 $125.98 $1285.90 $31.47 $4088.63 4162 11,028 $1,288 1.68 $18,404 $16,593 $13,882 335 3.84 4.90 13 12 + Electronic Expansion Valve 14.12 8.76 $1,222.60 $48.34 $1285.90 $40.45 $4211.69 4105 10,967 $1,278 1.94 $18,416 $16,619 $13,929 3.84 4.40 5.61 14 13+Outdoor ECM Fan Motor 14.20 8.86 $1,295.30 $72.70 $1285.90 $48.06 $4390.88 4084 10,844 $1,265 2.30 $18,459 $16,680 $14,015 4.65 5.32 6.79 15 14+ Indoor ECM Fan Motor 14.89 8.95 $1,475.55 $180.25 $1285.90 $63.68 $4831.89 3893 10,733 $1,240 3.15 $18,615 $16,872 $14,261 6.13 7.01 8.95 16 15 + Two-Speed Recip-Compressor System 16.48 8.96 $1,664.30 $188.75 $1285.90 $80.83 $5294.49 3519 10,722 $1,207 3.89 $18,715 $17,018 $14,476 6.89 7.88 10.07 17 15 + Variable-Speed Recip-Compressor System 16.65 9.49 $2,075.55 $600.00 $1285.90 $133.11 $6317.32 3481 10,127 $1,153 5.41 $19,141 $17,520 $15,090 10.47 11.98 15.30 18 15 + Two-Speed Scroll-Compressor System 16.78 9.73 $1,975.55 $500.00 $1285.90 $128.74 $6076.95 3454 9,875 $1,130 4.75 $18,639 $17,050 $14,670 9.50 10.88 13.89 19 15+Variable-Speed Scroll-Compressor Sstem 18.59 10.01 $2,125.55 $650.00 $1285.90 $135.29 $6437.50 3118 9,603 $1,078 4.94 $18,426 $16,910 $14,639 9.52 10.89 13.91 Assumptions: 1 Electricity cost - 0.085 $/k 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 to 1992 dollars). The interpolated value for 1999 is 0.082 $/kWh (1991 S) 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 -236. 3 Baseline unit includes: Indoor Coil: 6
.00 sq.ft., 13 fins/nch, Wavy Fins, 4 tube rows, Groove Tubes Outdoor Coil: 19.5 aq.R., 20 fins/inch, Slit Fins, 2 tube rows, Smooth Tubes Compressor. Reciprocating, 10.49 EER (nominal); Accumulator Indoor Fan Motor: PSC, 58.5% efficient Outdoor Fan Motor

. PSC, 55.0% efficient EnhancenentDevices: None 4 Maximum Sensible Heat Ratios 76.5% 5 Non-Bleed Thermostatic Expansion Valves replace the need for a Time Delay Relay; Accumulator still required due to excess refrigerant. 6 Evaporator ECM Fan Motor is modulated. Cost of fan motor includes electronic modulating controls. 7 Condenser ECM Fan Motor is run at a single speed. 

### Life Cycle Costs and Payback Periods

# orS·lon,SinglePackageSystem CentraJ Heat Pump
Incr. Diffcrcntial 

### DiffcmttiaJ. Installed AnnualElee Usc Annual 

### Cumul. Ufeeyclc Costa SEER 

### HSPI' Manufr Manufr Installatim Maintenance Conswner Cooling Heating 

### Enexgy Payback Level Design Optim Cost Cost Cost Cost Cost cost 

### Period (1992$) BtuhIW Btuh/W (1992$) (1992$) (1992$) (1992$) (1992$) kWh/yr kWh/yr 

### (1992$) (years) 

### 4% 6% 0 Baseline 9.70 6.88 $934.00 

# - $1161.54 $46.69 $3412.47 5977 13,966 $1,690 NA 

### $22,207 $19,830 1 0+BaclcwardInclincd IndoorBlower 9.99 7.00 $934.03 $0.03 $116154 $46.69 $341254 5803 13,732 $1,656 0.00 $21,823 $19,494 2 1 +IndoorCoil Slit FinS 

### 10.07 7.06 $934.25 $0.22 $1161.54 $46.69 $3413.06 5757 13,611 $1,642 0.01 $21,665 $19,357 3 2 +rimeDelay Relay 10.36 7.19 $940.75 $6.50 $1161.54 $46.69 $3428.40 5597 13,374 $1,608 0.19 $21,306 $19,045 4 3 +Scroll Compressor: 11.30EER 11.93 7.57 $965.13 $24.38 $1161.54 $46.69 $3485.94 4861 12,693 $1,488 0.36 $20,029 $17,937 5 4 +Marc EfficientOutdoorPSC Fan Motor (65.0% 

### 12.05 7.66 $971.43 $6.30 $1161.54 $39.08 $3493.19 4811 12,545 $1,471 0.37 $19,850 $17,781 6 

### 5 +IncrcascIndoorCoil 

### FIn Density to 

### 14fpi 12.09 7.70 $973.16 $1.73 $1161.54 $39.08 $3497.28 4797 12,484 $1,465 0.38 $19,782 $17,723 7 6 +Marc EfficientIndoorPSC Fan Motor (68.5%) 12.43 7.81 $982.92 $9.76 $1161.54 $31.47 $3512.71 4665 12,308 $1,439 0.40 $19,508 $17,485 8 7 +

### Demand Defrost 12.43 8.04 $994.42 $11.50 $1161.54 $31.47 $3539.85 4665 11,950 $1,408 0.45 $19,197 $17,217 9 8 +Non-Blecd Thermostatic Expansim Valves 12.74 8.28 $1,016.08 $21.66 $1161.54 $31.47 $3590.97 4551 11,608 $1,370 0.56 $18,819 $16,893 10 9 +IncrcascIndoorCoil FaceArea to

### 7.50 sq.ft. 13.10 8.37 $1,033.92 $17.84 $1171.83 $31.47 $3643.36 4424 11,475 $1,348 0.67 $18,627 $16,732 11 10 +OutdoorCoil Groovcd 

### Tubes 13.30 8.40 $1,048.28 $14.36 $1171.83 $31.47 $3677.25 4360 11,438 $1,339 0.75 $18,565 $16,682 12 11 +Increase OutdoorCoil Face Area to

### 36.50 sq.ft 

### 13.93 8.71 $1,174.26 $125.98 $1285.90 $31.47 $4088.63 4162 11,028 $1,288 1.68 $18,404 $16,593 13 12+Electronic Expansim Valve 14.12 8.76 $1,222.60 $48.34 $1285.90 $40.45 $4211.69 4105 10,967 $1,278 1.94 $18,416 $16,619 14 13 

### +OutdoorECMFan Motor 14.20 8.86 $1,295.30 $72.70 $1285.90 $48.06 $4390.88 4084 10,844 $1,265 2.30 $18,459 $16,680 15 14+IndoorECM Fan Motor 14.89 8.95 $1,475.55 $180.25 $1285.90 $63.68 $4831.89 3893 10,733 $1,240 3.15 $18,615 $16,872 16 15 +Two-SpecdRecip-CompressorSystem 16.48 8.96 $1,664.30 $188.75 $1285.90 $80.83 $5294.49 3519 10,722 $1,207 3.89 $18,715 $17,018 

### 17 15 +Variable-Specd Recip-CompressorSystem 16.65 9.49 $2,075.55 $600.00 $1285.90 $133.11 $6317.32 3481 10,127 $1,153 5.41 $19,141 $17,520 18 15 +Two-Specd Scroll-CompressorSystem 16.78 9.73 $1,975.55 $500.00 $1285.90 $128.74 $6076.95 3454 9,875 $1,130 4.75 $18,639 $17,050 19 15 +Variable-Speed Scroll-CompressorSystem 18.59 10.01 $2,125.55 $650.00 $1285.90 $135.29 $6437.50 3118 9,603 $1,078 4.94 $18,426 $16,910 Assumptions;

1 Electricity cost**~** 

### 0.085 $i1<Wb (average costin 1999 obtaincd

### fran an interpolatioo ofthe 1995 and 2000pricca ofelectricity forecast in DOE's Annual Energy Outlook 1993, inflated to 

### 1992 dollars). The interpolatcd value for 1999 is 0.082 $/kWh (1991$) or0.085 afteradjusting for inflation 

### fran 1991101992. The electricityprice enduse factor for CAC is 

### 1.0(no adjustment). 2 Ufctirne

- 15 years. Markup factor & 

### 2.36. 3 Baseline unitincludes: IndoorCoil: 6.00 sq.ft., 13 fwlinch, Wavy Fins, 4tube

### rows, GrooveTubea OutdoorCoil: 19.5 sq.ft., 20flnslinch, Slit FinS,

### 2tube

### rows, Smooth Tubea Compressor: Reciprocating, 10.49 EER (nominal); Accumulator IndoorFan Motor: PSC, 58.5% efficient OutdoorFan Motor: PSC, 55.0% efficient EnhancementDevices: None 4 Maximum SensibleHeatRatio

- 76.5% 5 Non-Bleed Thermostatic Expansion Valves replace the necd for aTimeDelayRelay; Accumulatorstill required

### due to

### excess refrigerant; 6 EvaporatorECMFan Motor is 

### modulated. Cost offan motorincludes electrooic modulating controls. 7 CoodenserECMFan Motor is 

### run at asingle speed. 10% $16,270 $16,007 $15,899 $15,659 $14,803 $14,683 $14,638 $14,455 $14,251 $14,008 $13,893 $13,862 $13,882 $13,929 $14,015 $14,261 $14,476 $15,090 $14,670 $14,639 9/20/93



### Cumulative Cost of

### ConsCIVedEnexgy**(cen~Wb)**



### 4% 

### 6% 10% NA NA NA 0.00 0.00 0.01 0.02 0.03 0.04 0.38 0.43 0.55 0.59 0.68 0.87 0.62 0.71 0.91 0.65 0.74 0.94 0.69 0.79 1.00 0.87 1.00 1.28 1.13 1.29 1.65 1.34 1.53 1.96 1.47 1.69 2.15 3.35 3.84 4.90 3.84 4.40 5.61 4.65 5.32 6.79 6.13 7.01 8.95 6.89 7.88 10.07 10.47 11.98 15.30 9.50 10.88 13.89 9.52 10.89 13.91

# 9/20/93 

# Life Cycle Cost for 5 -ton Single Package System

Central Heat Pump $20,000 $19,600 $19,200 

# $18,800



# U $18,000 a $17,600 $17,200 $16,800 $16,400 1

9.0 10.0 11.0 12.0 13.0 14.0 SEER 6% discount rate

15.0 16.0 17.0 18.0 19.0 $20,000 0 $19,600 $19,200 3 

# $18,800

,-...

# ~ $18,400 0\ 

# """ '-' 

# u u $18,000 ...:l 

# $17,600 $17,200 $16,800 $16,400 9.0 10.0 11.0 9/20/93 

# Life Cycle Costfor 5-ton Single Package System Central Heat Pump

4
7



# 9

12.0 

# 13.0 

# 1-l1li

- 

# 6% discount rate

# 1

14.0 

# SEER 15

15.0 16.0 17 16

---1118

17.0 18.0 19.0

# 9/20/93 

# Life Cycle Cost for 5-ton Single Package System

Central Heat Pump $23,000 $22,000 $21,000 $20,000 $19,000 $18,000 U 

# $17,000 $16,000 $15,000 $14,000 $13,000 4% discount rate

i i I i 9.0 10.0 11.0 12.0 13.0 -----4

14.0 15.0 16.0 17.0 18.0 19.0 SEER - - - 6% discount rate ®- - - - 10% discount rate

-A 

# $23,000 $22,000 $21,000 $20,000

__ $19,000**~**

# ~ 0'\ 

# o $18,000 

# u u**~** $17,000 $16,000 $15,000 $14,000 $13,000 9.0 

# 10.0 11.0 9/20/93 

# Life Cycle Cost for 5·ton Single Package System CentralHeatPump

12.0 .. +--



# --+ .. - - - -.+ 

# +

13.0 14.0 

# SEER 15.0 

# -0---4%discountrate

- - ts. - - 

# 6% discountrate

- - - -+- - - - 

# 10% discountrate

16.0 17.0 18.0 19.0