TEST REPORT #68. Chiao M. Lee Paul Laurentius. Hussmann Corporation St. Charles Rock Road Bridgeton, MO United States of America

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Lee Paul Laurentius Hussann Corporation 12999 St.

1 Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Progra (Low-GWP AREP) TEST REPORT #68 Syste Drop-in Test of (R-448a) in a R04A Low and Mediu Teperature Display Case Chiao M. Lee Paul Laurentius Hussann Corporation St. Charles Rock Road Bridgeton, MO United States of Aerica Noveber 11, 2016 This report has been ade available to the public as part of the author copany s participation in the AHRI s Low-GWP AREP.

2 1. Introduction: A refrigerant perforance coparison was conducted in Hussann Corporation s test facility located in Bridgeton, Missouri. The two refrigerants used for this coparison were and (R-448A). was purchased fro United Refrigeration. The lower GWP refrigerant,, was provided by Honeywell Corporation. Testing was conducted fro June 11 th 2014 to April 9 th Details of Test Setup: a. Description of Syste A custo refrigeration syste was built to accoodate this test to iniize disruption to the day to day operation of the test facility. The syste scheatic diagra is shown in Figure 1. The condensing unit, shown in Figure 2, was located outside the test roo and was configured with: Copeland Scroll copressor (Model ZF09K4E), utilizing liquid injection Discharge Teperature Control (DTC) valve set to open at a discharge teperature at or above 195 F Co-axial water cooled condenser. Chilled water for condenser was provided fro process water supply. Liquid Receiver Flow regulating valve to odulate chilled water flow and aintain constant condensing pressure Three flow eters, easuring Liquid Injection, Display Case Suction and Copressor Suction. Hot Gas Bypass The condensing unit was piped to the test unit, a Hussann Model display cabinet, located in a controlled abient test roo. The test unit is shown in Figure 3. The test unit was equipped with: Two evaporators Two adjustable theral expansion valves Liquid to Suction line heat exchanger located inside the test unit. Electric defrost heaters Hussann case controller to aintain constant discharge air teperatures by use of a suction stop solenoid The test unit and test roo were prepared and operated in accordance with ASHRAE standards. 1

Process or chilled water fro support equipent Flow Regulating Valve Inputs to Data Acquisition Syste D:Digital Input (Oil/OMB Filling) M:Nass Flow Rate T:Teperature P:Pressure A: Current Transducer

3 Process or chilled water fro support equipent Flow Regulating Valve Inputs to Data Acquisition Syste D:Digital Input (Oil/OMB Filling) M:Nass Flow Rate T:Teperature P:Pressure A: Current Transducer (Single phase of 3) W: Power Transduce Copressor T,P T T T,P T,P T Co-Axial HX M T Reciever T,P T Accuulator M Filter M Dis Air T Bulb T T P Evaporator & Liquid to Suction HX TXV Solenoid T,P Bulb T T T,P Evaporator & Liquid to Suction HX TXV Figure 1: Syste Drawing Figure 2: Condensing Unit 2

Figure 3: Display Cabinet b. Description of Modifications to Syste The syste was charged with 17.5 lbs. of and operated at low teperature with a -20 F SST setting.

4 Figure 3: Display Cabinet b. Description of Modifications to Syste The syste was charged with 17.5 lbs. of and operated at low teperature with a -20 F SST setting. was then recovered, unit evaluated and recharged with 17.5 lbs. of and operated at low teperature settings again. This was repeated for ediu teperature, +20 F SST (Saturated Suction Teperature) setting. For the ediu teperature runs, a hot gas bypass loop was used to keep the copressor running. Process/chilled water flow and/or teperature was changed to aintain a subcooling teperature of approxiately 3 R relative to bubble point. The TXV was odified while testing with to aintain superheat teperature of 6 R It should be noted, that the teperature difference between the saturated vapor teperature and the saturated liquid teperature or glide, for is around 1 F while for the glide is between 8 F and 10 F. 3

5 Test Sequence # c. Description of Tests Conducted Case Model # Test setup is shown in Figures 1, 2 and 3 Instruentation: Flow Meters: Micro Motion 2700R12BBAEZZZ ±0.5% of rate Therocouples: Watlow T Type T ±0.5 C or ±0.4% Pressure Transducers: Schaevitz P ±0.20% Noshok ±0.5% The coparison between and N-40c was copleted according to the test plan shown in Table 1. Case Load (BTU/hr) Case Tep Setting ( F) Refrigerant Test Roo Conditions Condensing Tep ( F) Average Superheat Setting ( F) DTC Regulating Valve Setting ( F) ASHRAE ASHRAE ASHRAE ASHRAE ASHRAE ASHRAE ASHRAE ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE N-40 ASHRAE Table 1: Drop in test plan to copare with N-40c 27 Valid test # 4

6 3. Results a. Data Fors AREP drop in test data fors for low teperature testing are provided in Appendix A. AREP drop in test data fors for ediu teperature testing are provided in Appendix B. b. Results The following charts and results were created fro the suary tables in Appendix C and Appendix D which were in-turn generated fro raw data collection. Chart 1 below shows the change in copressor power for each refrigerant/condensing teperature test condition. There was a reduction in power consuption noticed in every coparison test except for low teperature with 90 and 70 saturated condensing teperature. For low teperature the power reduction was around 2.5% (excluding the 90 and 70 runs) and around 4.5% for ediu teperature Average Copressor Power (W) Condensing Tep F Low Tep Applications Condensing Tep F Mediu Tep Applications Chart 1: Copressor Power consuption vs N-40c 5

7 Chart 2 below shows the change in BTU consuption, Q Evap (BTUH), of the refrigerated cabinet for each refrigerant/condensing teperature scenario. Q Evap was calculated using the easured ass flow (lb/hr) and ultiplying it by calculated change in enthalpy (BTU/lb) of the evaporator inlet and outlet. There was a reduction in BTUH noticed in the coparison test runs with on low tep and ediu tep there was a rather consistent BTUH except at 120 abient condensing Q Evap (BTUH) Condensing Tep F Low Tep Applications Chart 2: Display Cabinet Q BTU/hr vs N-40c Condensing Tep F Mediu Tep Applications 6

8 Chart 3 below shows the ass flow rate of the syste for each refrigerant/condensing teperature scenario. Q Evap was calculated using the easured ass flow (lb/hr) of the case outlet and with the difference between the case outlet and copressor inlet ass flow being the flowrate fro the hot gas bypass during ediu teperature runs. Mass Flow Rate (lb/hr) Copressor Inlet Case Outlet Condensing Tep F Low Tep Applications Condensing Tep F Mediu Tep Applications Chart 3: Mass Flow Rates vs N-40c Chart 4 below shows the superheat out of the evaporator for each refrigerant/condensing teperature scenario. This chart shows that a consistent superheat was aintained during each test. 7

9 Average Superheat Condensing Tep F Low Tep Applications Condensing Tep F Mediu Tep Applications Chart 4: Average Superheat vs N-40c c. Conclusion While there are soe things that cannot be discerned fro the testing that was perfored, without investing ore tie to re-test with another unit. Such as, why there is a capacity disparity between refrigerant side and air side for soe runs. The results show that is able to aintain case air discharge teperature and reduce power consuption using existing R404A equipent. 8

10 Appendix A: Low Teperature Data 9

11 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Low Tep 70 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.78 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 0.82 Sensible Capacity W Btu/hr Total Syste Power Input W W 1.08 Copressor Power Input W W 0.93 Energy Efficiency (EER) W/W Btuh/W 0.88 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency SEER Heating Seasonal Perforance Factor HSPF 10

12 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 11

13 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Low Tep 90 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.85 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 0.97 Sensible Capacity W Btu/hr Total Syste Power Input W W 1.06 Copressor Power Input W W 1.00 Energy Efficiency (EER) W/W Btuh/W 0.97 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency SEER Heating Seasonal Perforance Factor HSPF 12

14 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 13

15 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Low Tep 105 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.77 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 0.96 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.99 Copressor Power Input W W 0.97 Energy Efficiency (EER) W/W Btuh/W 0.99 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency SEER Heating Seasonal Perforance Factor HSPF 14

16 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 15

17 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Low Tep 120 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.74 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 0.95 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.98 Copressor Power Input W W 0.98 Energy Efficiency (EER) W/W Btuh/W 0.96 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency SEER Heating Seasonal Perforance Factor HSPF 16

18 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 17

19 Appendix B: Mediu Teperature Data 18

20 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Mediu Tep 70 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.75 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 1.00 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.93 Copressor Power Input W W 0.92 Energy Efficiency (EER) W/W Btuh/W 1.09 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency - SEER Heating Seasonal Perforance Factor - HSPF 19

21 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 20

22 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Mediu Tep 90 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.75 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 1.00 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.97 Copressor Power Input W W 0.92 Energy Efficiency (EER) W/W Btuh/W 1.09 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency - SEER Heating Seasonal Perforance Factor - HSPF 21

23 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 22

24 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Mediu Tep 105 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.75 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 1.00 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.97 Copressor Power Input W W 0.92 Energy Efficiency (EER) W/W Btuh/W 1.09 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency - SEER Heating Seasonal Perforance Factor - HSPF 23

25 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 24

26 Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: Hussann Manufacturer s Notation: Basic Inforation Mediu Tep 120 Condensing Alternative Refrigerant (If not proprietary, coposition as Charged, % wt) Alternative Lubricant Type and ISO Viscosity Polyolester Baseline Refrigerant and Lubricant Polyolester Make and Model of Syste ZF09K4E-TF5 Noinal Capacity and Type of Syste 9260 Coparison Data Base. Alt. SI Base. Alt. Mode (Heating/Cooling) Cooling UNits Copressor Type Scroll Scroll Copressor Displaceent ft ^3in 1 Noinal Motor Size 3 3 hp 1 Motor Speed rp 1 Expansion Device Type TXV TXV Lubricant Charge kg lb 1 Refrigerant Charge kg lb 1 Refrigerant Mass Flow Rate kg/in lb/in 0.77 Coposition, at copr. inlet if applicable % wt Abient Teps. Indoor db C F wb C F Outdoor db C F wb C F Total Capacity W Btu/hr 0.94 Sensible Capacity W Btu/hr Total Syste Power Input W W 0.97 Copressor Power Input W W 0.97 Energy Efficiency (EER) W/W Btuh/W 0.98 Coeff. Of Perforance (COP) Other Syste Changes Syste Data Base. Alt. Degradation Coefficient Cd Seasonal Energy Efficiency - SEER Heating Seasonal Perforance Factor - HSPF 25

27 Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of Syste: Display Cabinet (e.g., SSHP, window RAC, chiller, etc.) Alternate Refrigerant: (and coposition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Base. Alt. Evaporator Heat Exchange Fluid Air Air ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Condenser Heat Exchange Fluid Water Water ft 3/in Flow Rate (liquid) L/in gal/in Inlet Teperature C F Outlet Teperature C F Refrigerant Side Data Teperatures & Pressures Baseline Alternative Baseline Alternative T [C] P [kpa] T [C] P [kpa] T [F] P [psia] T [F] P [psia] Copressor Suction Copressor Discharge Condenser Inlet Condenser Outlet Expansion Device Inlet Subcooling, at expan. device Evaporator Inlet Evaporator Outlet Evaporator Superheat Data Source(s) for Refrigerant Properties REFPROP 9.1 Additional Notes Subitted by: Paul Laurentius 26

28 Appendix C: Low Teperature Suary Data 27

29 Teperature application Low Tep Applications Condensing teperature Refrigerant Subcooling ( F) Front Evaporator Superheat (R) Rear Evaporator Superheat (R) Average Superheat Q evap Q cop Q cond Energy balance residual Integrated Product Average ( F) Mass Flow Copressor Suction (lb/hr) Mass Flow Liquid Injection (lb/hr) COP (Q ref / Cop W) Average Copressor Power (W) Air Discharge Teperature ( F) Copressor Discharge Teperature ( F) Copressor Suction Teperature ( F) Copressor Discharge Pressure (psia) Copressor Suction Pressure (psia) Evaporator teperature ( F) Copressor lift (psid) Pressure ratio Calculated Therodynaic COP (Q evap / Q Cop) Dry Bulb Wet Bulb

30 Appendix D: Mediu Teperature Suary Data 29

31 Teperature application Mediu Tep Applications Condensing teperature Refrigerant Subcooling ( F) Front Evaporator Superheat (R) Rear Evaporator Superheat (R) Average Superheat Q evap Q cop Q cond Energy balance residual Integrated Product Average ( F) Mass Flow Copressor Suction (lb/hr) Mass Flow Liquid Injection (lb/hr) COP (Q ref / Cop W) Average Copressor Power (W) Air Discharge Teperature ( F) Copressor Discharge Teperature ( F) Copressor Suction Teperature ( F) Copressor Discharge Pressure (psia) Copressor Suction Pressure (psia) Evaporator teperature ( F) Copressor lift (psid) Pressure ratio Calculated Therodynaic COP (Q evap / Q Cop) Dry Bulb Wet Bulb

TEST REPORT #14. System Drop-In Test of Refrigerant Blend ARM-42a in an Air-Cooled Screw Chiller

TEST REPORT #14. System Drop-In Test of Refrigerant Blend ARM-42a in an Air-Cooled Screw Chiller Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #14 System Drop-In Test of Refrigerant Blend ARM-42a in an Air-Cooled