APPENDIX B. ENGINEERING DATA

TABLE OF CONTENTS

**B.1 INTRODUCTION**  **..............................................................................................................B­1**

**B.2 BASELINE**  **SPECIFICATIONS ........................................................................................B­1** 

**B.3 CHANGES**  **TO BASELINE**  **SPECIFICATIONS ..............................................................B­6** 

**B.3.1 VOP.RC.M**  **Equipment Class** 

**................................................................................ B­6** 

**B.3.2 VOP.RC.L**  **Equipment Class..................................................................................**  **B­6**

**B.3.3 SVO.RC.M**  **Equipment Class** 

**................................................................................ B­7** 

**B.3.4 HZO.RC.M**  **Equipment Class** 

**................................................................................ B­7** 

**B.3.5 HZO.RC.L**  **Equipment Class** 

**................................................................................. B­8** 

**B.3.6 VCT.RC.M**  **Equipment Class** 

**................................................................................ B­8** 

**B.3.7 VCT.RC.L**  **Equipment Class..................................................................................**  **B­9**

**B.3.8 SOC.RC.M**  **Equipment Class.................................................................................**  **B­9**

**B.3.9 VOP.SC.M**  **Equipment Class...............................................................................**  **B­10**

**B.3.10 SVO.SC.M**  **Equipment Class...............................................................................**  **B­10**

**B.3.11 HZO.SC.M**  **Equipment Class...............................................................................**  **B­11**

**B.3.12 HZO.SC.L**  **Equipment Class................................................................................**  **B­12**

**B.3.13 VCT.SC.I**  **Equipment Class** 

**................................................................................. B­12** 

**B.3.14 VCS.SC.I**  **Equipment Class** 

**................................................................................. B­13** 

**B.3.15 HZO.SC.I**  **Equipment Class.................................................................................**  **B­14**

**B.4 COST­EFFICIENCY**  **RESULTS .....................................................................................B­15** 

**B.5 HISTORICAL**  **LED COST**  **DATA...................................................................................B­31**

**B.6 LED**  **COST PROJECTION**  **DATA ..................................................................................B­32** 

LIST OF TABLES

**Table B.2.1**  **Baseline Design**  **Options........................................................................................... B­2** 

**Table B.2.2**  **Baseline Specifications** 

**............................................................................................. B­4** 

**Table B.4.1**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VCT.RC.L**  **Equipment Class....**  **B­16**

**Table B.4.2**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VOP.RC.M**  **Equipment Class** 

**.. B­17** 

**Table B.4.3**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the SVO.RC.M**  **Equipment Class** 

**.. B­18** 

**Table B.4.4**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the HZO.RC.L**  **Equipment Class** 

**... B­19** 

**Table B.4.5**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the HZO.RC.M**  **Equipment Class** 

**.. B­20** 

**Table B.4.6**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VCT.RC.M**  **Equipment Class** 

**.. B­21** 

**Table B.4.7**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VOP.RC.L**  **Equipment Class....**  **B­22**

**Table B.4.8**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the SOC.RC.M**  **Equipment Class...**  **B­23**

**Table B.4.9**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VOP.SC.M**  **Equipment Class...**  **B­24**

**Table B.4.10**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the SVO.SC.M**  **Equipment Class.**  **B­25**

**Table B.4.11**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the HZO.SC.L**  **Equipment Class..**  **B­26**

**Table B.4.12**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the HZO.SC.M**  **Equipment Class.**  **B­27**

**Table B.4.13**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the HCT.SC.I**  **Equipment Class** 

**... B­28** 

**Table B.4.14**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VCT.SC.I**  **Equipment Class** 

**... B­29** 

**Table B.4.15**  **Cost­Efficiency Data**  **and Design**  **Options for**  **the VCS.SC.I**  **Equipment Class** 

**... B­30** 

**B­i Table**  **B.5.1 Summary**  **of LED**  **Price Reductions**  **from Cree**  **Annual Reports** 

**............................ B­31** 

**Table B.6.1**  **Low Temperature**  **LED System**  **Cost Components**  ***** **and Cost**  **Reduction Estimate**  **B­33**

**Table B.6.2**  **Medium Temperature**  **LED System**  **Cost Components**  ***** **and Cost**  **Reduction Estimate** 

**............................................................................................................................... .......................**  **B­33**

LIST OF FIGURES

**Figure B.4.1**  **Cost­Efficiency Curve**  **for the**  **VCT.RC.L Equipment**  **Class................................. B­16** 

**Figure B.4.2**  **Cost­Efficiency Curve**  **for the**  **VOP.RC.M Equipment**  **Class................................ B­17** 

**Figure B.4.3**  **Cost­Efficiency Curve**  **for the**  **SVO.RC.M Equipment**  **Class................................ B­18** 

**Figure B.4.4**  **Cost­Efficiency Curve**  **for the**  **HZO.RC.L Equipment**  **Class................................. B­19** 

**Figure B.4.5**  **Cost­Efficiency Curve**  **for the**  **HZO.RC.M Equipment**  **Class**

**............................... B­20** 

**Figure B.4.6**  **Cost­Efficiency Curve**  **for the**  **VCT.RC.M Equipment**  **Class................................ B­21** 

**Figure B.4.7**  **Cost­Efficiency Curve**  **for the**  **VOP.RC.L Equipment**  **Class................................. B­22** 

**Figure B.4.8**  **Cost­Efficiency Curve**  **for the**  **SOC.RC.M Equipment**  **Class................................ B­23** 

**Figure B.4.9**  **Cost­Efficiency Curve**  **for the**  **VOP.SC.M Equipment**  **Class**

**................................ B­24** 

**Figure B.4.10**  **Cost­Efficiency Curve**  **for the**  **SVO.SC.M Equipment**  **Class**

**.............................. B­25** 

**Figure B.4.11**  **Cost­Efficiency Curve**  **for the**  **HZO.SC.L Equipment**  **Class............................... B­26** 

**Figure B.4.12**  **Cost­Efficiency Curve**  **for the**  **HZO.SC.M Equipment**  **Class.............................. B­27** 

**Figure B.4.13**  **Cost­Efficiency Curve**  **for the**  **HCT.SC.I Equipment**  **Class**

**................................ B­28** 

**Figure B.4.14**  **Cost­Efficiency Curve**  **for the**  **VCT.SC.I Equipment**  **Class**

**................................ B­29** 

**Figure B.4.15**  **Cost­Efficiency Curve**  **for the**  **VCS.SC.I Equipment**  **Class................................. B­30** 

**Figure B.5.1**  **Cost­Efficiency Trends**  **for Red­Light**  **LEDs and**  **White­Light LEDs...................**  **B­32**

**B­ii**APPENDIX B. ENGINEERING DATA

B.1 INTRODUCTION

**This appendix**  **presents baseline**  **specifications and**  **detailed cost­efficiency**  **results for** 

**each of**  **the fifteen**  **commercial refrigeration**  **equipment (CRE)**  **equipment classes**  **analyzed in**  **the**

**engineering analysis**  **(Chapter 5).** 

B.2 BASELINE SPECIFICATIONS

**Table B.2.1**  **shows baseline**  **design options**  **for each**  **of the**  **fifteen commercial** 

**refrigeration equipment**  **classes analyzed**  **in the**  **engineering analysis.**  **All changes**  **to cost**  **and**

**efficiency are**  **measured relative**  **to this**  **level in**  **the engineering**  **analysis. Refer**  **to Chapter**  **5 of** 

**the TSD**  **for details**  **about each**  **baseline technology.** 

**Table B.2.2**  **shows baseline**  **specifications (or**  **case design**  **specifications) for**  **each of**  **the**

**CRE equipment**  **classes analyzed**  **in the**  **engineering analysis.**  **These specifications**  **include**

**dimensions, numbers**  **of components,**  **temperatures, nominal**  **power ratings,**  **and other**  **case**

**features that**  **are necessary**  **to calculate**  **the energy**  **consumption of**  **each equipment**  **class. In** 

**conjunction with**  **baseline design**  **option levels,**  **the baseline**  **specifications define**  **the energy** 

**consumption and**  **cost of**  **the typical**  **minimum technology**  **equipment on**  **the market.** 

**B­1**TableB.2.1BaselineDesignOptionsVCT.RC.LVOP.RC.MSVO.RC.MHZO.RC.LHZO.RC.MVCT.RC.MVOP.RC.LSOC.RC.M**Lighting for** **VOP, T8** **T8 T8** **T8 SVO,** **HZO and** **SOC ­** **Electronic Electronic** **­ ­** **­ Electronic** **Electronic Lighting** **for VCT** **T8 Electronic** **­ ­** **­ ­** **T8 Electronic** **­ ­** **Evaporator Coil** **Area Standard** **Coil Standard** **Coil Standard** **Coil Standard** **Coil Standard** **Coil Standard** **Coil Standard** **Coil Standard** **Coil Evaporator** **Fan Motors** **Shaded Pole** **Motor Shaded** **Pole Motor** **Shaded Pole** **Motor Shaded** **Pole Motor** **Shaded Pole** **Motor Shaded** **Pole Motor** **Shaded Pole** **Motor Shaded** **Pole Motor** **Doors for** **VCT.XX.L/I (30** **x 67** **in) Standard** **Door ­** **­ ­** **­ ­** **­ ­** **Doors for** **VCT.XX.M (30** **x 67** **in) ­** **­ ­** **­ ­** **Standard Door** **­ ­** **Doors for** **HCT.XX.L/I (18** **x 20.5** **in) ­** **­ ­** **­ ­** **­ ­** **­ Doors** **for SOC.XX.M** **(20 x** **24 in)** **­ ­** **­ ­** **­ ­** **­ Standard** **Door Condenser** **Coil Area** **(SC Only)** **­ ­** **­ ­** **­ ­** **­ ­** **Condenser Fan** **Motors (SC** **only) ­** **­ ­** **­ ­** **­ ­** **­ Compressor** **(SC only)** **­ ­** **­ ­** **­ ­** **­ ­** **B­2**TableB.2.1BaselineDesignOptions(Con’t)VOP.SC.MSVO.SC.MHZO.SC.LHZO.SC.MHCT.SC.IVCT.SC.IVCS.SC.I**Lighting for** **VOP, T8** **T8 T8** **SVO, HZO** **and SOC** **Electronic Electronic** **­ ­** **­ Electronic** **­ Lighting** **for VCT** **­ ­** **­ ­** **­ ­** **­ Evaporator** **Coil Area** **Standard Coil** **Standard Coil** **Standard Coil** **Standard Coil** **­ Standard** **Coil Standard** **Coil Evaporator** **Fan Motors** **Shaded Pole** **Motor Shaded** **Pole Motor** **Shaded Pole** **Motor Shaded** **Pole Motor** **­ Shaded** **Pole Motor** **Shaded Pole** **Motor Doors** **for VCT.XX.L/I** **(30 x** **67 in)** **­ ­** **­ ­** **­ Standard** **Door ­** **Doors for** **VCT.XX.M (30** **x 67** **in) ­** **­ ­** **­ ­** **­ ­** **Doors for** **HCT.XX.L/I (18** **x 20.5** **in) ­** **­ ­** **­ Standard** **Door ­** **­ Doors** **for SOC.XX.M** **(20 x** **24 in)** **­ ­** **­ ­** **­ ­** **­ Condenser** **Coil Area** **Standard Standard** **Standard Standard** **Standard Standard** **Standard (SC** **Only) Coil** **Coil Coil** **Coil Coil** **Coil Coil** **Condenser Fan** **Motors Shaded** **Pole Shaded** **Pole Shaded** **Pole Shaded** **Pole Shaded** **Pole Shaded** **Pole Shaded** **Pole (SC** **only) Motor** **Motor Motor** **Motor Motor** **Motor Motor** **Compressor (SC** **only) Single** **Speed Hermetic** **Single Speed** **Hermetic Single** **Speed Hermetic** **Single Speed** **Hermetic Single** **Speed Hermetic** **Single Speed** **Hermetic Single** **Speed Hermetic** **B­3**TableB.2.2BaselineSpecificationsVCT.RC.LVOP.RC.MSVO.RC.MHZO.RC.LHZO.RC.MVCT.RC.MVOP.RC.LSOC.RC.M**Case Length** **[ft] 12.7** **12.0 12.0** **12.0 12.0** **12.7 12.0** **12.0 Case** **Gross Refrigerated** **Volume [ft** **3 ]** **133.5 130.2** **46.6 55.0** **33.0 142.0** **109.8 66.0** **Case Total** **Display Area** **[ft 2** **] 65.0** **53.3 40.0** **46.0 33.0** **65.0 44.7** **51.0 Number** **of Bulbs** **in Conditioned** **Space [#]** **6 12** **9 0** **0 6** **0 15** **Number of** **Bulbs NOT** **in Conditioned** **Space [#]** **0 9** **6 0** **0 0** **9 0** **Number of** **Ballasts in** **Conditioned Space** **[#] 6** **0 0** **0 0** **6 0** **0 Number** **of Ballasts** **NOT in** **Conditioned Space** **[#] 0** **7 5** **0 0** **0 3** **5 Evaporator** **Fan Nominal** **Rated Wattage** **[W] 6** **9 9** **6 9** **6 9** **9 Number** **of Evaporator** **Fans per** **Case [#]** **5 6** **4 4** **4 5** **14 4** **Condenser Fan** **Nominal Rated** **Wattage [W]** **0 0** **0 0** **0 0** **0 0** **Number of** **Condenser Fans** **per Case** **[#] 0** **0 0** **0 0** **0 0** **0 Defrost** **Mechanism Type** **[OFF, ELE,** **MAN] ELE** **OFF OFF** **ELE ELE** **OFF ELE** **ELE Defrost** **Time per** **Day [hrs]** **1.0 4.5** **3.0 1.0** **1.0 1.0** **2.0 1.2** **Defrost+Drain Heater** **Power [W]** **5000 0** **0 3000** **1000 0** **8700 1600** **Anti­Sweat Power** **Other Than** **Doors [W]** **0 0** **50 200** **50 0** **600 200** **Condensate Pan** **Heater Power** **[W] 0** **0 0** **0 0** **0 0** **0 Discharge** **Air Temperature** **(DAT) [F]** **­5 25** **25 ­10** **25 32** **­10 30** **Saturated Evaporator** **Temperature (SET)** **Nominal [F]** **­11 15** **15 ­20** **15 27** **­20 20** **Saturated Condenser** **Temperature (SCT)** **Nominal [F]** **0 0** **0 0** **0 0** **0 0** **Compressor Oversize** **Factor 0.0** **0.0 0.0** **0.0 0.0** **0.0 0.0** **0.0 Insulation** **Thickness [in]** **2.0 1.5** **1.5 2.0** **1.5 1.5** **2.0 1.5** **Wall Area** **[ft2] 200.0** **175.9 113.4** **140.0 93.3** **204.0 214.0** **84.6 Number** **of Doors** **[#] 5** **0 0** **0 0** **5 0** **6 Single** **Door Area** **[ft2] 13.0** **0.0 0.0** **0.0 0.0** **13.0 0.0** **3.5 Non­Door** **Glass Area** **[ft2] 0.0** **0.0 0.0** **0.0 0.0** **0.0 0.0** **30.0 Case** **Interior Surface** **Area [ft2]** **145.0 130.2** **72.5 82.0** **48.4 146.5** **118.5 61.6** **Air Curtain** **Height [ft]** **Air Curtain** **Angle From** **Vertical [°]** **­ 8.5** **47.0 90.0** **82.0 ­** **7.3 ­** **Infiltrated Air** **Mass [lb/hr]** **30 860** **590 140** **250 30** **530 15** **B­4**TableB.2.2BaselineSpecifications(Con’t.)EquipmentClassVOP.SC.MSVO.SC.MHZO.SC.LHZO.SC.MHCT.SC.IVCT.SC.IVCS.SC.I**Case Length** **[ft] 4.0** **4.0 4.0** **4.0 3.4** **4.3 4.3** **Case Gross** **Refrigerated Volume** **[ft3] 32.0** **9.4 7.4** **7.5 10.2** **48.0 48.0** **Case Total** **Display Area** **[ft2] 14.9** **12.8 12.0** **12.0 5.1** **26.0 0.0** **Number of** **Bulbs in** **Conditioned Space** **[#] 4** **3 0** **0 0** **3 0** **Number of** **Bulbs NOT** **in Conditioned** **Space [#]** **3 2** **0 0** **0 0** **0 Number** **of Ballasts** **in Conditioned** **Space [#]** **0 0** **0 0** **0 3** **0 Number** **of Ballasts** **NOT in** **Conditioned Space** **[#] 3** **2 0** **0 0** **0 0** **Evaporator Fan** **Nominal Rated** **Wattage [W]** **6 6** **6 6** **0 9** **9 Number** **of Evaporator** **Fans per** **Case [#]** **2 1** **1 1** **0 2** **2 Condenser** **Fan Nominal** **Rated Wattage** **[W] 9** **9 6** **6 9** **6 6** **Number of** **Condenser Fans** **per Case** **[#] 3** **1 1** **1 1** **2 2** **Defrost Mechanism** **Type [OFF,** **ELE, MAN]** **OFF OFF** **ELE ELE** **MAN ELE** **ELE Defrost** **Time per** **Day [hrs]** **2.8 2.8** **1.5 1.0** **0.0 1.0** **1.0 Defrost+Drain** **Heater Power** **[W] 0** **0 900** **400 0** **2580 2580** **Anti­Sweat Power** **Other Than** **Doors [W]** **0 100** **300 100** **0 0** **250 Condensate** **Pan Heater** **Power [W]** **1500 1100** **400 300** **0 200** **200 Discharge** **Air Temperature** **(DAT) [F]** **25 25** **­10 25** **­20 ­20** **­20 Saturated** **Evaporator Temperature** **(SET) Nominal** **[F] 15** **15 ­20** **15 ­30** **­30 ­30** **Saturated Condenser** **Temperature (SCT)** **Nominal [F]** **95 95** **95 95** **95 95** **95 Compressor** **Oversize Factor** **1.4 1.4** **1.4 1.4** **1.4 1.4** **1.4 Insulation** **Thickness [in]** **1.5 1.5** **2.0 1.5** **2.5 2.5** **2.5 Wall** **Area [ft2]** **61.0 40.2** **52.0 54.0** **36.8 77.0** **77.0 Number** **of Doors** **[#] 0** **0 0** **0 2** **2 2** **Single Door** **Area [ft2]** **0.0 0.0** **0.0 0.0** **2.6 13.0** **13.0 Non­Door** **Glass Area** **[ft2] 0.0** **0.0 4.0** **4.0 0.0** **0.0 0.0** **Case Interior** **Surface Area** **[ft2] 47.5** **21.3 19.5** **19.8 26.1** **64.0 64.0** **Air Curtain** **Height [ft]** **Air Curtain** **Angle From** **Vertical [°]** **6.1 57.0** **85.0 85.0** **­ ­** **­ Infiltrated** **Air Mass** **[lb/hr] 300** **220 100** **100 3** **15 15** **B­5**B.3 CHANGES TO BASELINE SPECIFICATIONS

**This section**  **details changes**  **to the**  **baseline design**  **specifications in**  **the NOPR**  **engineering**

**analysis relative**  **to the**  **ANOPR by**  **equipment class.**  **Changes to**  **the baseline**  **design specifications** 

**for the**  **15 equipment**  **classes analyzed**  **in the**  **ANOPR are**  **presented. If**  **no mention**  **is made**  **of a** 

**particular value,**  **that value**  **remained unchanged**  **from the**  **ANOPR.**

B.3.1 VOP.RC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**open, remote**  **condensing equipment**  **class.**

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Number of**  **bulbs in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**four rows**  **of lit**  **shelves, which**  **DOE understands**  **is the**  **typical number**  **of shelves**  **in**

**VOP.RC.M equipment.** 

• **Number of**  **bulbs not**  **in conditioned**  **space**

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**two rows**  **of canopy**  **lighting and**  **one row**  **of front**  **ledge lighting.** 

• **Number of**  **ballasts not**  **in conditioned**  **space**

**– The**  **number of**  **ballasts was**  **revised to** 

**reflect the**  **total number**  **of bulbs**  **present, assuming**  **one ballast**  **for every**  **three bulbs.** 

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **more closely** 

**reflect temperatures**  **typical of**  **manufacturer specification**  **sheets for**  **VOP.RC.M**

**equipment.**

B.3.2 VOP.RC.L Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**open, remote**  **condensing, low­temperature**  **equipment class.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for VOP.RC.L**  **equipment.**

**B­6**B.3.3 SVO.RC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **semi**

**vertical, open,**  **remote condensing,**  **medium­temperature equipment**  **class.**

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Anti­sweat power**  **other than**  **doors**

**– The**  **anti­sweat power**  **was revised**  **to be**  **more in** 

**line with**  **what is**  **currently available**  **on the**  **market.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Number of**  **bulbs in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**three rows**  **of lit**  **shelves.**

• **Number of**  **bulbs not**  **in conditioned**  **space**

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**two rows**  **of canopy**  **lighting.**

• **Number of**  **ballasts not**  **in conditioned**  **space**

**– The**  **number of**  **ballasts was**  **revised to** 

**reflect the**  **total number**  **of bulbs**  **present, assuming**  **one ballast**  **for every**  **three bulbs.** 

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for SVO.RC.M**  **equipment.**

B.3.4 HZO.RC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **horizontal,**

**open, remote**  **condensing, medium­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Case total**  **display area** 

**– The**  **total display**  **area of**  **the case**  **was changed**  **because the** 

**ANOPR value**  **was not**  **consistent with**  **the infiltration**  **load used.**  **A single­deck**  **meat**

**case was**  **used as**  **the representative**  **case type**  **for this**  **product class.** 

• **Case gross**  **refrigerated volume** 

**– The**  **gross refrigerated**  **volume of**  **the case**  **was changed**  **to coincide**  **with the**  **change in**  **total display**  **area.**

• **Anti­sweat power**  **other than**  **doors**

**– The**  **anti­sweat power**  **was revised**  **to be**  **in line** 

**with single­deck**  **meat cases**  **currently available**  **on the**  **market.**

• **Wall area** 

**– The**  **wall area**  **of the**  **case was**  **revised to**  **coincide with**  **the change**  **in total** 

**display area.** 

• **Case interior**  **surface area** 

**– The**  **interior surface**  **area of**  **the case**  **was revised**  **to coincide** 

**with the**  **change in**  **total display**  **area.**

• **Air curtain**  **angle from**  **vertical**

**– The**  **air curtain**  **angle was**  **revised to**  **be consistent**  **with**

**single­deck meat**  **cases.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**B­7 and**  **verified using**  **empirical data**  **from the**  **Refrigeration and**  **Thermal Test**  **Center**

**(RTTC).**

• **Evaporator fan**  **nominal rated**  **wattage**

**– The**  **wattage rating**  **for the**  **evaporator fan**  **was updated**  **to be**  **consistent with**  **single­deck meat**  **cases.**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for HZO.RC.M**  **equipment**

**that operates**  **at 38**  **F.**

• **Defrost mechanism**  **type**

**– The**  **defrost mechanism**  **was changed**  **to electric**  **defrost**

**because the**  **majority (roughly**  **2/3) of**  **HZO.RC.M cases**  **for which**  **data was**  **available**

**use electric**  **defrost.**

• **Defrost time**  **per day** 

**– The**  **total amount**  **of defrost**  **time per**  **day was**  **changed to**  **be**

**consistent with**  **electric defrost.** 

• **Defrost and**  **drain heater**  **power**

**– The**  **amount of**  **power consumed**  **by the**  **defrost**

**mechanism and**  **drain heater**  **was revised**  **to be**  **consistent with**  **electric defrost.** 

B.3.5 HZO.RC.L Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **horizontal,**

**open, remote**  **condensing, low­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Anti­sweat power**  **other than**  **doors– The**  **anti­sweat power**  **was revised**  **to be**  **in line** 

**with typical**  **low­temperature island**  **cases currently**  **on the**  **market.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for HZO.RC.L**  **equipment.**

• **Defrost and**  **drain heater**  **power**

**– The**  **amount of**  **power consumed**  **by the**  **defrost**

**mechanism and**  **drain heater**  **was revised**  **to be**  **in line**  **with typical**  **low­temperature**

**island cases**  **currently on**  **the market.** 

B.3.6 VCT.RC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**closed, transparent**  **door, remote**  **condensing, medium­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Single door**  **area**

**– The**  **area of**  **a single**  **cabinet door**  **was revised**  **slightly in**  **order to**  **be**

**consistent with**  **the total**  **display area**  **of the**  **cabinet.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**B­8 other**  **load components,**  **infiltration load**  **was estimated**  **from total**  **refrigeration load**  **data**

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for VCT.RC.M**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**reflect temperatures**  **typical of**  **manufacturer specification**  **sheets for**  **VCT.RC.M**

**equipment.**

B.3.7 VCT.RC.L Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**closed, transparent**  **door, remote**  **condensing, low­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Case gross**  **refrigerated volume** 

**– The**  **gross refrigerated**  **volume of**  **the case**  **was**

**changed to**  **reflect the**  **smaller interior**  **volume relative**  **to medium­temperature**  **cases**

**with doors.** 

• **Single door**  **area**

**– The**  **area of**  **a single**  **cabinet door**  **was revised**  **slightly in**  **order to**  **be**

**consistent with**  **the total**  **display area**  **of the**  **cabinet.**

• **Case interior**  **surface area** 

**– The**  **interior surface**  **area of**  **the case**  **was changed**  **to reflect** 

**the smaller**  **interior volume**  **relative to**  **medium­temperature cases**  **with doors.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for VCT.RC.L**  **equipment.**

B.3.8 SOC.RC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **service over** 

**counter, remote**  **condensing, medium­temperature**  **equipment class.** 

• **Non­door glass**  **area**

**– The**  **area of**  **non­door glass**  **in the**  **cabinet was**  **changed slightly**  **to**

**be more**  **in line**  **with typical**  **dimensions of**  **currently available**  **equipment.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Number of**  **evaporator fans** 

**– The**  **number of**  **evaporator fans**  **was updated**  **to be**  **more in** 

**line with**  **currently available**  **equipment.**

**B­9**• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for SOC.RC.L**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**reflect temperatures**  **typical of**  **manufacturer specification**  **sheets for**  **SOC.RC.M**

**equipment.**

• **Defrost**

**– The**  **total amount**  **of defrost**  **time per**  **day and**  **the amount**  **of power**  **consumed**

**by defrost**  **and drain**  **heaters was**  **updated to**  **be more**  **in line**  **with currently**  **available**

**equipment.**

B.3.9 VOP.SC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**open, self­contained,**  **medium­temperature equipment**  **class.**

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was estimated**  **using manufacturer**  **specification sheets**  **and data**  **from similar** 

**remote condensing**  **equipment.**

• **Number of**  **bulbs in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**four rows**  **of lit**  **shelves, which**  **typical of**  **VOP.SC.M equipment.** 

• **Number of**  **bulbs not**  **in conditioned**  **space**

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**two rows**  **of canopy**  **lighting and**  **one row**  **of sill**  **lighting, which**  **is typical**  **of VOP.SC.M** 

**equipment.**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **be consistent** 

**with VOP.RC.M**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with VOP.RC.M**  **equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

B.3.10 SVO.SC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **semi**

**vertical, open,**  **self­contained, medium­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was estimated**  **using manufacturer**  **specification sheets**  **and data**  **from similar** 

**remote condensing**  **equipment.**

• **Number of**  **bulbs in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**three rows**  **of lit**  **shelves, which**  **typical of**  **SVO.SC.M equipment.** 

• **Number of**  **bulbs not**  **in conditioned**  **space**

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**two rows**  **of canopy**  **lighting, which**  **is typical**  **of SVO.SC.M**  **equipment.**

**B­10**• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **be consistent** 

**with SVO.RC.M**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with SVO.RC.M**  **equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

• **Defrost mechanism**  **type**

**– The**  **defrost mechanism**  **was changed**  **to off­cycle**  **defrost to** 

**be consistent**  **with SVO.RC.M**  **and VOP.SC.M**  **equipment.**

• **Defrost time**  **per day** 

**– The**  **total amount**  **of defrost**  **time per**  **day was**  **changed to** 

**correspond to**  **the change**  **in defrost**  **mechanism.**

• **Defrost and**  **drain heater**  **power**

**– The**  **amount of**  **power consumed**  **by the**  **defrost**

**mechanism and**  **drain heater**  **was changed**  **to zero,**  **since off­cycle**  **defrost uses**  **no heater** 

**power.**

B.3.11 HZO.SC.M Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **horizontal,**

**open, self­contained,**  **medium­temperature equipment**  **class.**

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Non­door glass**  **area**

**– The**  **area of**  **non­door glass**  **in the**  **cabinet was**  **revised to**  **include**

**a small**  **amount of**  **non­door glass,**  **which is**  **typical of**  **HZO.SC.M equipment.** 

• **Anti­sweat power**  **other than**  **doors– The**  **anti­sweat power**  **was revised**  **to be**  **more**

**consistent with**  **data available**  **for HZO.SC.M**  **equipment and**  **with HZO.RC.M** 

**equipment.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was estimated**  **using manufacturer**  **specification sheets**  **and data**  **from similar** 

**remote condensing**  **equipment.**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for HZO.SC.M**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with HZO.RC.M**  **equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

• **Defrost mechanism**  **type**

**– The**  **defrost mechanism**  **was changed**  **to electric**  **defrost to**  **be**

**consistent with**  **data available**  **for HZO.SC.M**  **equipment and**  **with HZO.RC.M** 

**equipment.**

• **Defrost time**  **per day** 

**– The**  **total amount**  **of defrost**  **time per**  **day was**  **shortened to**  **be**

**consistent with**  **electric defrost.** 

• **Defrost and**  **drain heater**  **power**

**– The**  **amount of**  **power consumed**  **by the**  **defrost**

**mechanism and**  **drain heater**  **was revised**  **to be**  **consistent with**  **electric defrost.** 

**B­11**B.3.12 HZO.SC.L Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **horizontal,**

**open, self­contained,**  **low­temperature equipment**  **class.**

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Non­door glass**  **area**

**– The**  **area of**  **non­door glass**  **in the**  **cabinet was**  **revised to**  **include**

**a small**  **amount of**  **non­door glass,**  **which is**  **typical of**  **HZO.SC.L equipment.** 

• **Anti­sweat power**  **other than**  **doors– The**  **anti­sweat power**  **was revised**  **to be**  **more**

**consistent with**  **data available**  **for HZO.SC.L**  **equipment and**  **with HZO.RC.L** 

**equipment.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was estimated**  **using manufacturer**  **specification sheets**  **and data**  **from similar** 

**remote condensing**  **equipment.**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for HZO.SC.M**  **equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

B.3.13 VCT.SC.I Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**closed, transparent**  **door, self­contained,**  **ice cream­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Case length** 

**– The**  **case length**  **was changed**  **to reflect**  **a case**  **with 2**  **doors rather**  **than 3.** 

• **Case gross**  **refrigerated volume** 

**– The**  **gross refrigerated**  **volume of**  **the case**  **was changed**  **to be**  **consistent with**  **a case**  **with 2**  **doors.**

• **Case total**  **display area** 

**– The**  **total display**  **area of**  **the case**  **was changed**  **to be**  **consistent**

**with a**  **case with**  **2 doors.** 

• **Number of**  **doors**

**– The**  **number of**  **doors was**  **changed to**  **2.**

• **Single door**  **area**

**– The**  **area of**  **a single**  **cabinet door**  **was revised**  **to be**  **consistent with** 

**the doors**  **on VCT.RC.L**  **and VCT.RC.M**  **equipment, in**  **order to**  **match the**  **data used**  **for**

**the high­efficiency**  **door design**  **option.**

• **Wall area** 

**– The**  **wall area**  **of the**  **case was**  **changed to**  **be consistent**  **with a**  **case with**  **2**

**doors.**

• **Case interior**  **surface area** 

**– The**  **interior surface**  **area of**  **the case**  **was changed**  **to be** 

**consistent with**  **a case**  **with 2**  **doors.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

**B­12**• **Number of**  **bulbs in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect the** 

**switch to**  **2 doors.** 

• **Number of**  **ballasts in**  **conditioned space** 

**– The**  **number of**  **bulbs was**  **revised to**  **reflect**

**the switch**  **to 2**  **doors.**

• **Number of**  **evaporator fans**  **per case** 

**– The**  **number of**  **evaporator fans**  **per case**  **was**

**revised to**  **reflect the**  **switch to**  **2 doors.** 

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for VCT.SC.I**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with the**  **discharge air**  **temperatures required**  **for ice­cream**  **temperature**

**equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

B.3.14 VCS.SC.I Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **vertical,**

**closed, solid**  **door, self­contained,**  **ice cream­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Case length** 

**– The**  **case length**  **was changed**  **to reflect**  **a case**  **with 2**  **doors rather**  **than 3.** 

• **Case gross**  **refrigerated volume** 

**– The**  **gross refrigerated**  **volume of**  **the case**  **was changed**  **to be**  **consistent with**  **a case**  **with 2**  **doors.**

• **Case total**  **display area** 

**– The**  **total display**  **area of**  **the case**  **was changed**  **to be**  **consistent**

**with a**  **case with**  **2 doors.** 

• **Number of**  **doors**

**– The**  **number of**  **doors was**  **changed to**  **2.**

• **Single door**  **area**

**– The**  **area of**  **a single**  **cabinet door**  **was revised**  **to be**  **consistent with** 

**the doors**  **on VCT.SC.I,**  **VCT.RC.L and**  **VCT.RC.M equipment.** 

• **Wall area** 

**– The**  **wall area**  **of the**  **case was**  **changed to**  **be consistent**  **with a**  **case with**  **2**

**doors.**

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Number of**  **evaporator fans**  **per case** 

**– The**  **number of**  **evaporator fans**  **per case**  **was**

**revised to**  **reflect the**  **switch to**  **2 doors.** 

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for VCS.SC.I**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with the**  **discharge air**  **temperatures required**  **for ice­cream**  **temperature**

**equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

**B­13**B.3.15 HZO.SC.I Equipment Class

**This section**  **details changes**  **made to**  **the baseline**  **design specifications**  **for the**  **horizontal,**

**open, self­contained,**  **ice cream­temperature**  **equipment class.** 

• **Core case**  **cost**

**– The**  **core case**  **cost was**  **updated to**  **reflect improvements**  **to the** 

**accuracy of**  **the engineering**  **cost model.** 

• **Case total**  **display area** 

**– The**  **total display**  **area of**  **the case**  **was revised**  **slightly to**  **be**

**consistent with**  **the display**  **area of**  **the doors.** 

• **Infiltrated air**  **mass**

**– The**  **mass of**  **air infiltrated**  **into the**  **case replaced**  **the defrost**  **melt**

**water, and**  **was calculated**  **using manufacturer**  **specification sheets.**  **Using models**  **for**

**other load**  **components, infiltration**  **load was**  **estimated from**  **total refrigeration**  **load data** 

**and verified**  **using empirical**  **data from**  **the Refrigeration**  **and Thermal**  **Test Center** 

**(RTTC).**

• **Discharge air**  **temperature**

**– The**  **discharge air**  **temperature was**  **revised to**  **reflect**

**temperatures typical**  **of manufacturer**  **specification sheets**  **for HZO.SC.I**  **equipment.**

• **Baseline evaporator**  **temperature**

**– The**  **baseline evaporator**  **temperature was**  **revised to** 

**be consistent**  **with the**  **discharge air**  **temperatures required**  **for ice­cream**  **temperature**

**equipment.**

• **Compressor oversize**  **factor**

**– The**  **compressor oversize**  **factor was**  **revised to**  **be**

**consistent with**  **changes to**  **the rated**  **capacity for**  **compressors used**  **in the**  **model.**

**B­14**B.4 COST­EFFICIENCY RESULTS

**For each**  **of the**  **fifteen CRE**  **equipment classes**  **analyzed in**  **the engineering**  **analysis, Figure** 

**B.4.1 through**  **Figure B.4.15**  **show cost­efficiency**  **curves and**  **Table B.4.1**  **through Table**  **B.4.15**

**show detailed**  **cost­efficiency data.**  **Included in**  **each table**  **are DOE**  **analytically derived**  **data and** 

**technology changes**  **that occur**  **above the**  **baseline level.**  **Levels above**  **the baseline**  **for analytically** 

**derived data**  **(“design option**  **levels”) are**  **labeled as**  **“AD1”, “AD2”,**  **and so**  **forth.**

**Design option**  **changes above**  **the baseline**  **are shown**  **in Table**  **B.4.1 through**  **Table B.4.15** 

**as additions**  **to the**  **previous design**  **option level.**  **Design options**  **are implemented**  **in order**  **of**

**lowest payback**  **to highest**  **and only**  **one design**  **option change**  **is made**  **per design**  **option level.** 

**B­15**FigureB.4.1Cost­EfficiencyCurvefortheVCT.RC.LEquipmentClassTableB.4.1Cost­EfficiencyDataandDesignOptionsfortheVCT.RC.LEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignDailyEnergyManufacturerOptionDesignOptionChangeAbovetheBaselineConsumptionSellingPriceLevel[kWh/day/ft2][$/ft2]**AD1 1.07** **113.17 ­** **AD2 1.04** **113.61 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **1.01 114.67** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.72** **134.42 AD3** **+ High­Performance** **Doors AD5** **0.71 135.24** **AD4 +** **Additional 1⁄2”** **Insulation AD6** **0.65 147.83** **AD5 +** **LED Lighting** **AD7 0.64** **149.55 AD6** **+ High­Performance** **Evaporator Coil** **B­16**FigureB.4.2Cost­EfficiencyCurvefortheVOP.RC.MEquipmentClassTableB.4.2Cost­EfficiencyDataandDesignOptionsfortheVOP.RC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 1.09** **79.12 ­** **AD2 1.04** **79.76 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.98 81.30** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.95** **82.90 AD3** **+ “Super”** **T8 Electronic** **Lighting AD5** **0.90 87.59** **AD4 +** **High­Performance Evaporator** **Coil AD6** **0.89 88.58** **AD5 +** **Additional 1⁄2”** **Insulation AD7** **0.76 129.36** **AD6 +** **LED Lighting** **B­17**FigureB.4.3Cost­EfficiencyCurvefortheSVO.RC.MEquipmentClassTableB.4.3Cost­EfficiencyDataandDesignOptionsfortheSVO.RC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 1.09** **95.10 ­** **AD2 1.05** **95.67 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.99 97.04** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.97** **98.56 AD3** **+ “Super”** **T8 Electronic** **Lighting AD5** **0.91 102.91** **AD4 +** **High­Performance Evaporator** **Coil AD6** **0.78 141.73** **AD5 +** **LED Lighting** **AD7 0.77** **143.06 AD6** **+ Additional** **1⁄2” Insulation** **B­18**FigureB.4.4Cost­EfficiencyCurvefortheHZO.RC.LEquipmentClassTableB.4.4Cost­EfficiencyDataandDesignOptionsfortheHZO.RC.LEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 0.83** **93.63 ­** **AD2 0.81** **94.12 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.77 95.31** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.73** **97.40 AD3** **+ High­Performance** **Evaporator Coil** **AD5 0.72** **98.56 AD4** **+ Additional** **1⁄2” Insulation** **B­19**FigureB.4.5Cost­EfficiencyCurvefortheHZO.RC.MEquipmentClassTableB.4.5Cost­EfficiencyDataandDesignOptionsfortheHZO.RC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 0.60** **129.23 ­** **AD2 0.54** **129.92 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.48 131.58** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.45** **133.95 AD3** **+ High­Performance** **Evaporator Coil** **AD5 0.44** **135.56 AD4** **+ Additional** **1⁄2” Insulation** **B­20**FigureB.4.6Cost­EfficiencyCurvefortheVCT.RC.MEquipmentClassTableB.4.6Cost­EfficiencyDataandDesignOptionsfortheVCT.RC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 0.51** **103.23 ­** **AD2 0.49** **103.67 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.46 104.72** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.35** **120.28 AD3** **+ High­Performance** **Doors AD5** **0.34 121.10** **AD4 +** **Additional 1⁄2”** **Insulation AD6** **0.29 133.69** **AD5 +** **LED Lighting** **AD7 0.29** **134.71 AD6** **+ High­Performance** **Evaporator Coil** **B­21**FigureB.4.7Cost­EfficiencyCurvefortheVOP.RC.LEquipmentClassTableB.4.7Cost­EfficiencyDataandDesignOptionsfortheVOP.RC.LEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 2.99** **143.54 ­** **AD2 2.84** **145.32 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **2.65 149.62** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 2.54** **156.20 AD3** **+ High­Performance** **Evaporator Coil** **AD5 2.52** **157.02 AD4** **+ “Super”** **T8 Electronic** **Lighting AD6** **2.51 158.21** **AD5 +** **Additional 1⁄2”** **Insulation AD7** **2.44 179.07** **AD6 +** **LED Lighting** **B­22**FigureB.4.8Cost­EfficiencyCurvefortheSOC.RC.MEquipmentClassTableB.4.8Cost­EfficiencyDataandDesignOptionsfortheSOC.RC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 0.62** **146.36 ­** **AD2 0.59** **146.81 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.55 147.88** **AD2 +** **ECM Evaporator** **Fan Motors** **AD4 0.53** **149.08 AD3** **+ “Super”** **T8 Electronic** **Lighting AD5** **0.51 150.33** **AD4 +** **High­Performance Evaporator** **Coil AD6** **0.41 180.77** **AD5 +** **LED Lighting** **AD7 0.41** **181.81 AD6** **+ Additional** **1⁄2” Insulation** **AD8 0.40** **187.79 AD7** **+ High­Performance** **Doors B­23** FigureB.4.9Cost­EfficiencyCurvefortheVOP.SC.MEquipmentClassTableB.4.9Cost­EfficiencyDataandDesignOptionsfortheVOP.SC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 2.65** **145.66 ­** **AD2 2.54** **146.49 AD1** **+ High­Efficiency** **Compressor AD3** **2.50 147.25** **AD2 +** **PSC Evaporator** **Fan Motors** **AD4 2.46** **148.39 AD3** **+ PSC** **Condenser Fan** **Motors AD5** **2.41 150.23** **AD4 +** **ECM Evaporator** **Fan Motors** **AD6 2.30** **155.87 AD5** **+ High­Performance** **Evaporator Coil** **AD7 2.27** **157.96 AD6** **+ “Super”** **T8 Electronic** **Lighting AD8** **2.24 160.71** **AD7 +** **ECM Condenser** **Fan Motors** **AD9 2.06** **179.11 AD8** **+ High­Performance** **Condenser Coil** **AD10 1.89** **226.80 AD9** **+ LED** **Lighting AD11** **1.89 230.37** **AD10 +** **Additional 1⁄2”** **Insulation B­24** FigureB.4.10Cost­EfficiencyCurvefortheSVO.SC.MEquipmentClassTableB.4.10Cost­EfficiencyDataandDesignOptionsfortheSVO.SC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 2.59** **138.92 ­** **AD2 2.47** **139.82 AD1** **+ High­Efficiency** **Compressor AD3** **2.44 140.27** **AD2 +** **PSC Evaporator** **Fan Motors** **AD4 2.43** **140.71 AD3** **+ PSC** **Condenser Fan** **Motors AD5** **2.40 141.78** **AD4 +** **ECM Evaporator** **Fan Motors** **AD6 2.30** **146.81 AD5** **+ High­Performance** **Evaporator Coil** **AD7 2.28** **147.88 AD6** **+ ECM** **Condenser Fan** **Motors AD8** **2.26 149.57** **AD7 +** **“Super” T8** **Electronic Lighting** **AD9 2.09** **165.98 AD8** **+ High­Performance** **Condenser Coil** **AD10 1.95** **205.92 AD9** **+ LED** **Lighting AD11** **1.94 210.08** **AD10 +** **Additional 1⁄2”** **Insulation B­25** FigureB.4.11Cost­EfficiencyCurvefortheHZO.SC.LEquipmentClassTableB.4.11Cost­EfficiencyDataandDesignOptionsfortheHZO.SC.LEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 3.22** **154.04 ­** **AD2 3.03** **155.38 AD1** **+ High­Efficiency** **Compressor AD3** **3.00 155.85** **AD2 +** **PSC Evaporator** **Fan Motors** **AD4 2.96** **156.99 AD3** **+ ECM** **Evaporator Fan** **Motors AD5** **2.80 161.97** **AD4 +** **High­Performance Evaporator** **Coil AD6** **2.79 162.44** **AD5 +** **PSC Condenser** **Fan Motors** **AD7 2.54** **178.69 AD6** **+ High­Performance** **Condenser Coil** **AD8 2.53** **179.83 AD7** **+ ECM** **Condenser Fan** **Motors AD9** **2.51 184.26** **AD8 +** **Additional 1⁄2”** **Insulation B­26** FigureB.4.12Cost­EfficiencyCurvefortheHZO.SC.MEquipmentClassTableB.4.12Cost­EfficiencyDataandDesignOptionsfortheHZO.SC.MEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 1.60** **132.19 ­** **AD2 1.52** **132.87 AD1** **+ High­Efficiency** **Compressor AD3** **1.49 133.34** **AD2 +** **PSC Evaporator** **Fan Motors** **AD4 1.45** **134.48 AD3** **+ ECM** **Evaporator Fan** **Motors AD5** **1.44 134.96** **AD4 +** **PSC Condenser** **Fan Motors** **AD6 1.38** **137.83 AD5** **+ High­Performance** **Evaporator Coil** **AD7 1.26** **147.19 AD6** **+ High­Performance** **Condenser Coil** **AD8 1.24** **148.33 AD7** **+ ECM** **Condenser Fan** **Motors AD9** **1.23 152.76** **AD8 +** **Additional 1⁄2”** **Insulation B­27** FigureB.4.13Cost­EfficiencyCurvefortheHCT.SC.IEquipmentClassTableB.4.13Cost­EfficiencyDataandDesignOptionsfortheHCT.SC.IEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 1.42** **202.29 ­** **AD2 1.29** **203.93 AD1** **+ High­Efficiency** **Compressor AD3** **1.24 205.04** **AD2 +** **PSC Condenser** **Fan Motors** **AD4 0.72** **225.93 AD3** **+ High­Performance** **Doors AD5** **0.69 228.61** **AD4 +** **ECM Condenser** **Fan Motors** **AD6 0.65** **239.00 AD5** **+ Additional** **1⁄2” Insulation** **B­28**FigureB.4.14Cost­EfficiencyCurvefortheVCT.SC.IEquipmentClassTableB.4.14Cost­EfficiencyDataandDesignOptionsfortheVCT.SC.IEquipmentClassDOEAnalytically­DerivedDataTDA­NormalizedTDA­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft2][$/ft2]**AD1 1.755** **134.76 ­** **AD2 1.657** **135.45 AD1** **+ High­Efficiency** **Compressor AD3** **1.607 135.88** **AD2 +** **PSC Evaporator** **Fan Motors** **AD4 1.545** **136.94 AD3** **+ ECM** **Evaporator Fan** **Motors AD5** **1.452 138.95** **AD4 +** **High­Performance Evaporator** **Coil AD6** **1.323 145.51** **AD5 +** **High­Performance Condenser** **Coil AD7** **0.973 165.26** **AD6 +** **High­Performance Doors** **AD8 0.969** **165.70 AD7** **+ PSC** **Condenser Fan** **Motors AD9** **0.875 181.45** **AD8 +** **LED Lighting** **AD10 0.869** **182.50 AD9** **+ ECM** **Condenser Fan** **Motors AD11** **0.861 184.55** **AD10 +** **Additional 1⁄2”** **Insulation B­29** Note:TheVCSequipmentfamilyisnormalizedbyvolume.FigureB.4.15Cost­EfficiencyCurvefortheVCS.SC.IEquipmentClassTableB.4.15Cost­EfficiencyDataandDesignOptionsfortheVCS.SC.IEquipmentClassDOEAnalytically­DerivedDataV­NormalizedV­NormalizedDesignOptionLevelDailyEnergyConsumptionManufacturerSellingPriceDesignOptionChangeAbovetheBaseline[kWh/day/ft3][$/ft3]**AD1 0.565** **43.38 ­** **AD2 0.535** **43.61 AD1** **+ PSC** **Evaporator Fan** **Motors AD3** **0.506 43.91** **AD2 +** **High­Efficiency Compressor** **AD4 0.471** **44.48 AD3** **+ ECM** **Evaporator Fan** **Motors AD5** **0.451 45.03** **AD4 +** **High­Performance Evaporator** **Coil AD6** **0.414 46.82** **AD5 +** **High­Performance Condenser** **Coil AD7** **0.410 47.06** **AD6 +** **PSC Condenser** **Fan Motors** **AD8 0.402** **48.17 AD7** **+ Additional** **1⁄2” Insulation** **AD9 0.397** **48.74 AD8** **+ ECM** **Condenser Fan** **Motors B­30** B.5 HISTORICAL LED COST DATA

**DOE researched**  **historical LED**  **costs to**  **verify that**  **they are**  **consistent with**  **the cost** 

**projections in**  **DOE’s Multi­Year**  **Program Plan.**  **1 DOE**  **reviewed available**  **price data**  **for the** 

**LED market**  **and found**  **that between**  **2000 and**  **2007, white­light**  **LEDs had**  **a compound**  **annual**

**growth rate**  **(CAGR) ranging**  **from approximately**  **­18 to**  **­31 percent.**  **The ­18**  **CAGR was**  **an**

**estimate based**  **on Annual**  **Reports from**  **Cree, Inc.**  **over the**  **years of**  **2001­2007**

**(http://www.cree.com/investor/annual.htm). Table**  **B.5.1 shows**  **a summary**  **of the**  **data collected** 

**from these**  **reports that**  **was used**  **to estimate**  **the CAGR**  **of white­light**  **LEDs.**

Table B.5.1 Summary of LED Price Reductions from Cree Annual Reports

Year % Change in Average

Sales Price

2001 ­18%

2002 ­24%

2003 ­9%

2004 ­16%

2005 ­13%

2006 ­21%

2007 ­26%

**Historical LED**  **prices provided**  **by Roland**  **Haitz of**  **Phillips Lumileds**  **Lighting Company** 

**were also**  **used to**  **estimate the**  **CAGR of**  **both white­light**  **LEDs and**  **red­light LEDs.**  **Based on** 

**the data**  **from Figure**  **B.5.1, DOE**  **estimated that**  **white­light LEDs**  **had a**  **­31 percent**  **CAGR from** 

**2000­2007 and**  **that red­light**  **LEDs had**  **a ­22**  **percent CAGR**  **from 1973­2005.**  **The trend**  **in red** 

**light LED**  **costs derived**  **from empirical**  **data over**  **this longer**  **time period**  **is of**  **a similar** 

**magnitude to**  **DOE’s projected**  **costs for**  **white­light LEDs.**  **Due to**  **the technological**  **similarities**

**between red­light**  **LEDs and**  **white­light LEDs,**  **DOE believes**  **that the**  **historical cost**  **reductions**

**for red­light**  **LEDs are**  **indicative of**  **future cost**  **reductions for**  **white­light LEDs.**  **Furthermore,**

**the white­light**  **LED market**  **is undergoing**  **a massive**  **expansion and**  **growth phase,**  **with**

**significant investment,**  **new products**  **and innovative**  **applications for**  **LED technology,**  **including**

**illumination of**  **commercial refrigeration**  **equipment.**

**1 U.S.**  **Department of**  **Energy, Solid­State**  **Lighting Research**  **and Development,**  **Multi­Year Program**  **Plan FY’09­** 

**FY’14. This**  **document was**  **prepared under**  **the direction**  **of a**  **Technical Committee**  **from the**  **Next Generation** 

**Lighting Initiative**  **Alliance (NGLIA).**  **Information about**  **the NGLIA**  **and its**  **members is**  **available at** 

**www.nglia.org**

**.**

**B­31**Figure B.5.1 Cost­Efficiency Trends for Red­Light LEDs and White­Light LEDs

B.6 LED COST PROJECTION DATA

**DOE contacted**  **several manufacturers**  **of LEDs**  **and integrated**  **circuits and**  **developed the** 

**following estimate**  **of future**  **LED cost**  **reductions. Table**  **B.6.1 and**  **Table B.6.2**  **show a** 

**breakdown of**  **the cost**  **components in**  **the LED**  **system and**  **estimated cost**  **component reductions** 

**based on**  **conversations with**  **two LED**  **manufacturers who**  **are members**  **of the**  **Next Generation** 

**Lighting Industry**  **Alliance (NGLIA)**  **and a**  **manufacturer of**  **integrated circuits.**  **The results**  **show**

**a reduction**  **in total**  **LED system**  **cost 2**  **between 2007**  **and 2012**  **of approximately**  **50 percent.** 

**2 The**  **total LED**  **system consists**  **of LED**  **chips, a**  **power supply,**  **and the**  **LED fixture.** 

**B­32**Table B.6.1 Low Temperature LED System Cost Components * and Cost Reduction

Estimate

LED System Cost

Component Cost Estimate

(2007) Cost Estimate

(2012) Source of Cost Reduction Estimate

between 2007 and 2012

**LED Chips**  **(1 Watt** 

**each) $83**  **65% $21**  **35% Interviews**  **with NGLIA**  **manufacturers.**

**Power Supply**  **$13 10%**  **$8 13%**  **Interview with**  **an integrated**  **circuit**

**manufacturer.**

**Balance of**  **Fixture $31**  **25% $31**  **52% Dollar**  **amount assumed**  **to remain**  **the same.** 

TOTAL $127 100% $60 100% 53% Total LED System Cost Reduction

***** **Accounts for**  **mass­production volumes.** 

Table B.6.2 Medium Temperature LED System Cost Components * and Cost Reduction

Estimate

LED System Cost

Component Cost Estimate

(2007) Cost Estimate

(2012) Source of Cost Reduction Estimate

between 2007 and 2012

**LED Chips**  **(1 Watt** 

**each) $52**  **61% $13**  **30% Interviews**  **with NGLIA**  **manufacturers.**

**Power Supply**  **$8 9%**  **$5 11%**  **Interview with**  **an integrated**  **circuit**

**manufacturer.**

**Balance of**  **Fixture $26**  **30% $26**  **59% Dollar**  **amount assumed**  **to remain**  **the same.** 

TOTAL $86 100% $44 100% 51% Total LED System Cost Reduction

***** **Accounts for**  **mass­production volumes.** 

**B­33**