TEST REPORT #22 System Drop-in Testing of R … Heating, and Refrigeration Institute (AHRI) Low-GWP...

Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #22 System Drop-in Testing of R-410A Replacements in Split System Heat Pump Larry Burns Matt Austin Cheng Chen United Technologies Carrier Corporation 7304 West Morris Street PO Box 70 Indianapolis, IN 46206-0070 August 5, 2013 This report has been made available to the public as part of the author company’s participation in the AHRI’s Low-GWP AREP.

List of Tested Refrigerants’ Compositions (Mass%)

ARM-70a R-32/R-134a/R-1234yf (50/10/40) DR-5 R-32/R-1234yf (72.5/27.5) L-41a R-32/R-1234yf/R-1234ze(E) (73/15/12) L-41b R-32/R-1234ze(E) (73/27) R-32 R-32(100)

2

1. Introduction

This test report summarizes the results of performance testing of a production Carrier 14 SEER R-410A, 3.0 ton split system heat pump tested with five proposed R-410A replacement refrigerants. The purpose of this investigation was to evaluate performance of Low GWP options to replace R-410A. Using R-410A to establish baseline performance, the following refrigerants were tested as a “drop-in” into the R-410A system:

R-32 Honeywell L-41b Honeywell L-41a DuPont DR-5 Arkema ARM-70a

The testing was conducted in the Carrier Residential Commercial Systems facility in Indianapolis, Indiana during March and April 2012 with some additional follow-up testing in August 2012.

2. Test Description

a. System The outdoor unit tested was a production 14 SEER R-410A, 3.0 ton single capacity split system heat pump, model 25HBB336. The compressor was changed to a calorimeter tested sample provided by Emerson Climate Technologies. The indoor unit tested was a production fan coil, model FX4CNF036. The system diagram is shown below:

Compressor Accumulator

4 Way Valve

Outdoor Coil

Indoor Coil

EXV

Fixed Orifice (Bypassed in Cooling Mode)

Line Set

System Diagram

Heat Pump Outdoor Section

Indoor Fan Coil Section

3

b. System Modifications The compressor was changed to the same model calorimeter tested sample. In addition, the oil was changed to a POE oil with good miscibility for all refrigerants tested. This change was made prior to test initiation for the baseline R-410A and used for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, with a check valve applied in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating.

c. Test Description The system was tested to determine SEER and HSPF as well as the cooling and heating capacity in accordance with AHRI210/240. The psychrometric capacity was determined following ASHRAE standard 37-2009. The indoor unit was placed on a “code tester” section comprised of the following major components: entering damper box, entering psychrometer sampler, leaving psychrometer sampler, leaving damper, and nozzle box. The entering and leaving psychrometers consisted of a dry bulb and a wet bulb RTD and were used for the steady state capacity measurements. Entering and leaving thermocouple grids were utilized for the transient capacity measurements. The psychrometric test facility is recognized as a satellite test facility. The facility undergoes annual audits to ensure compliance with ISO 17025. The psychrometric test facility is also subjected to annual calibration traceable to NIST standards. The uncertainty propagation for the psychrometric capacity at the DOE A condition (with 95% confidence) is an estimated 3.8%. The proposed replacement refrigerants were evaluated on a “drop-in” basis. The system was tested with R-410A and then tested with each of the proposed replacements without modification to the system. The system refrigerant charge quantity for all refrigerants was not “soft-optimized,” but rather the system charge level was determined by matching the following baseline refrigerant state point conditions. In cooling, the state points used for control were superheat leaving the evaporator and subcooling leaving the condenser at the DOE B condition, and superheat leaving the evaporator at the DOE A condition. In heating, the state point used for control was subcooling leaving the condenser (indoor coil) at the DOE H1 test condition. These points were maintained to within a ± 2°F tolerance. The charge level determined by these criteria for each refrigerant was held constant for the complete cooling and heating series.

3. Test Results The following tables contain the results of the “drop-in” testing performed for the steady state tests. The DOE cyclic testing was also performed for all refrigerants. The raw data is not included, but the resulting SEER and HSPF are listed in the table for each refrigerant tested.

4

Manufacturer: Carrier Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt) R32, 100%

Alternative Lubricant Type and ISO Viscosity Modified POE oil Baseline Refrigerant and Lubricant R410A and Modified Oil Make and Model of System Carrier 25HBB336 and FX4CNF036 Nominal Capacity and Type of System 3.0 ton capacity split system Other System Changes All tests were done with modified POE oil with good miscibility for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, and a check valve was utilized in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating. The compressor was changed to same model calorimeter tested sample. System Data Base. Alt. Ratio Degradation Coefficient (Cooling)– Cd 0.06 0.06 1.00 Seasonal Energy Efficiency Ratio - SEER 14.61 14.51 0.99 Degradation Coefficient (Heating) – Cd * 0.118 0.25 2.12 Heating Seasonal Performance Factor - HSPF 8.356 8.543 1.02 * Note: If Cd is larger than 0.25, then use 0.25 for HSPF calculation. Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: R32 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling A Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 3.91 2.62 kg/min 8.60 5.77 lb/min 0.67 Composition, at compressor inlet 100 % wt Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F

Outdoor db 35.00 35.00 C 95 95 F wb n/a n/a C n/a n/a F

Total Capacity 10,401 10,679 W 35,490 36,437 Btu/hr 1.03 Sensible Capacity 7,947 8,045 W 27,115 27,449 Btu/hr 1.01 Total System Power Input 2,949 3,041 W 2,949 3,041 W 1.03 Compressor Power Input 2,468 2,569 W 2,468 2,569 W 1.04 Energy Efficiency Ratio (EER) 12.04 11.98 Btuh/W 12.04 11.98 Btuh/W 1.00 Coeff. Of Performance (COP) 3.53 3.51 1.00 Data Source(s) for Refrigerant Properties NIST REFPROP Version 9.0

5

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: R32

Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid R410A R32

Flow Rate (gas) 34.40 34.55 m^3/min 1215 1220 ft^3/min 1.00 Inlet Temperature 26.66/19.44 26.67/19.46 C 79.99/67 80.01/67.02 F Outlet Temperature 15.14/14.29 15.22/14.22 C 59.26/57.73 59.39/57.59 F

Condenser Heat Exchange Fluid R410A R32

Flow Rate (gas) 117.23 122.47 m^3/min 4140 4325 ft^3/min 1.04 Inlet Temperature 35.00 35.00 C 95 95 F Outlet Temperature 40.43 40.36 C 104.78 104.65 F

Refrigerant Side Data Temperatures & Pressures

Baseline Alternative Baseline Alternative T (C) P [kPa] T (C) P [kPa] T [F] P [psia] T [F] P [psia]

Compressor Suction 18.84 1077.87 20.19 1063.82 65.91 156.33 68.34 154.30 Compressor Discharge 74.17 2806.30 90.62 2852.92 165.50 407.02 195.11 413.79 Condenser Inlet n/a n/a n/a n/a n/a n/a n/a n/a Condenser Outlet 39.91 2760.12 39.54 2821.37 103.84 400.32 103.18 409.21 Expansion Device Inlet 39.13 2735.15 38.68 2811.35 102.43 396.70 101.62 407.76 Subcooling, at expansion device 5.89 6.57 10.61 11.83 Evaporator Inlet n/a n/a n/a n/a n/a n/a n/a n/a Evaporator Outlet 14.36 1101.45 13.03 1080.64 57.84 159.75 55.46 156.74 Evaporator Superheat 3.84 3.84 6.91 6.91

6

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: R32 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling B Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6.0 lb. 0.89 Refrigerant Mass Flow Rate 3.94 2.66 kg/min 8.68 5.87 lb/min 0.68 Composition, at compressor inlet 100 % wt

Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F



7

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: R32


Heat Exchange Fluid R410A R32

Flow Rate (gas) 34.38 34.32 m^3/min 1214 1212 ft^3/min 1.00 Inlet Temperature 26.67/19.47 26.66/19.46 C 80/67.05 79.99/67.02 F Outlet Temperature 14.69/13.87 14.64/13.78 C 58.44/56.97 58.36/56.8 F

Condenser Heat Exchange Fluid R410A R32




Compressor Suction 16.52 1063.60 17.23 1048.07 61.73 154.26 63.02 152.01 Compressor Discharge 62.70 2379.59 75.79 2402.87 144.86 345.13 168.43 348.51 Condenser Inlet n/a n/a n/a n/a n/a n/a n/a n/a Condenser Outlet 33.14 2326.16 32.46 2367.33 91.65 337.38 90.44 343.36 Expansion Device Inlet 32.76 2294.44 32.02 2357.64 90.96 332.78 89.63 341.95 Subcooling, at expansion device 4.97 5.95 8.94 10.71

Evaporator Inlet n/a n/a n/a n/a n/a n/a n/a n/a Evaporator Outlet 13.62 1088.01 12.03 1065.58 56.52 157.80 53.66 154.55 Evaporator Superheat 3.52 3.31 6.34 5.95

8

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: R32 Comparison Data Base. Alt. SI

Units Base. Alt. IP Units Ratio

Mode (Heating/Cooling) Heating H1 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/mi

n 3.646 3.646 ft^3/min 1

Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6.0 lb. 0.89 Refrigerant Mass Flow Rate 2.86 2.19 kg/min 6.31 4.82 lb/min 0.76 Composition, at compressor inlet 100 % wt

Ambient Temps.

Indoor db 21.11 21.11 C 70 70 F wb n/a n/a C n/a n/a F

Outdoor db 8.33 8.33 C 47 47 F wb 6.11 6.11 C 43 43 F

Total Capacity 10,036 10,813 W 34,245 36,894 Btu/hr 1.08 Sensible Capacity 10,036 10,813 W 34,245 36,894 Btu/hr 1.08 Total System Power Input 2,643 2,745 W 2,643 2,745 W 1.04 Compressor Power Input 2,211 2,314 W 2,211 2,314 W 1.05 Energy Efficiency Ratio (EER) n/a n/a W/W n/a n/a Btuh/W n/a Coeff. Of Performance (COP) 3.80 3.94 1.04 Data Source(s) for Refrigerant Properties NIST REFPROP Version 9.0

9

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: R32


Heat Exchange Fluid R410A R32 Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature 8.33/6.11 8.33/6.11 C 47 /43 47 /43 F Outlet Temperature 6.71 6.17 C 44.07 43.10 F

Condenser Heat Exchange Fluid R410A R32 Flow Rate (gas) 36.44 36.39 m^3/min 1287 1285 ft^3/min 1.04 Inlet Temperature 21.10 21.11 C 69.98 70 F Outlet Temperature 36.00 37.06 C 96.8 98.71 F



Compressor Suction 1.47 778.88 0.61 815.33 34.64 112.97 33.10 118.26 Compressor Discharge 64.37 2437.54 71.19 2517.98 147.87 353.54 160.14 365.21 Condenser Inlet 56.85 2429.47 61.19 2512.46 134.33 352.37 142.15 364.41 Condenser Outlet 29.73 2394.59 31.33 2486.61 85.52 347.31 88.40 360.66 Expansion Device Inlet 28.42 n/a 29.71 n/a 83.15 n/a 85.47 n/a Subcooling, at expansion device 11.05 10.43 19.90 18.77

Evaporator Inlet n/a 905.69 n/a 906.09 n/a 131.36 n/a 131.42 Evaporator Outlet n/a n/a n/a n/a n/a n/a n/a n/a Evaporator Superheat n/a n/a n/a n/a

10

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: R32 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H3 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PIST

ON

Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6.0 lb. 0.89 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a Composition, at compressor inlet 100 % wt

Ambient Temps.


Outdoor db -8.33 -8.33 C 17 17 F wb -9.44 -9.44 C 15 15 F

Total Capacity 6,143 6,632 W 20,961 22,628 Btu/hr 1.08 Sensible Capacity 6,143 6,632 W 20,961 22,628 Btu/hr 1.08 Total System Power Input 2,328 2,436 W 2,328 2,436 W 1.05 Compressor Power Input 1,903 1,984 W 1,903 1,984 W 1.04 Energy Efficiency Ratio (EER) n/a n/a W/W n/a n/a Btuh/W 1.03

Coeff. Of Performance (COP) 2.64 2.72 1.03 * Note: Refrigerant flow measurement is erratic for some heating tests. Data Source(s) for Refrigerant Properties NIST REFPROP Version 9.0

11

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: R32


Heat Exchange Fluid R410A R32 Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature -8.33/-9.44 -8.33/-9.44 C 17/15 17/15 F Outlet Temperature -9.19 -10.01 C 15.46 13.99 F

Condenser Heat Exchange Fluid R410A R32 Flow Rate (gas) 36.44 34.97 m^3/min 1287 1235 ft^3/min 0.96 Inlet Temperature 21.11 21.11 C 70 69.99 F Outlet Temperature 30.00 31.08 C 86 87.95 F



Compressor Suction -13.55 497.98 -12.83 519.90 7.61 72.23 8.90 75.41 Compressor Discharge 56.31 1997.78 69.49 2067.55 133.35 289.76 157.09 299.88 Condenser Inlet 44.92 1999.23 53.72 2066.58 112.86 289.97 128.70 299.74 Condenser Outlet 28.51 1968.48 30.10 2044.25 83.32 285.51 86.18 296.50 Expansion Device Inlet 26.54 n/a 28.75 n/a 79.77 n/a 83.76 n/a Subcooling, at expansion device 5.06 3.53 9.12 6.36


12

Manufacturer: Carrier Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt) Honeywell L-41b Alternative Lubricant Type and ISO Viscosity Modified POE oil Baseline Refrigerant and Lubricant R410A and Modified Oil Make and Model of System Carrier 25HBB336 and FX4CNF036 Nominal Capacity and Type of System 3.0 ton capacity split system Other System Changes All tests were done with modified POE oil with good miscibility for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, and a check valve was utilized in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating. The compressor was changed to same model calorimeter tested sample. System Data Base. Alt. Ratio Degradation Coefficient (Cooling)– Cd 0.06 0.05 0.83 Seasonal Energy Efficiency Ratio - SEER 14.61 13.95 0.95 Degradation Coefficient (Heating) – Cd 0.118 0.226 1.92 Heating Seasonal Performance Factor - HSPF 8.356 8.192 0.98 * Note: If Cd is larger than 0.25, then use 0.25 for HSPF calculation. Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: L-41b

Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling A Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 3.91 2.55 kg/min 8.60 5.63 lb/min 0.65 Composition, at compressor inlet n/a % wt Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F


Total Capacity 10,401 9,286 W 35,490 31,684 Btu/hr 0.89 Sensible Capacity 7,947 7,512 W 27,115 25,631 Btu/hr 0.95 Total System Power Input 2,949 2,727 W 2,949 2,727 W 0.92 Compressor Power Input 2,468 2,274 W 2,468 2,274 W 0.92 Energy Efficiency Ratio (EER) 12.04 11.62 Btuh/W 12.04 11.62 Btuh/W 0.97 Coeff. Of Performance (COP) 3.53 3.41 0.97

Data Source(s) for Refrigerant Properties NIST REFPROP Version 9.0

13

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test

Type of System: Split HP Alternate Refrigerant: L-41b


Heat Exchange Fluid R410A L-41b

Flow Rate (gas) 34.40 35.20 m^3/min 1215 1243 ft^3/min 1.02 Inlet Temperature 26.66/19.44 26.67/19.46 C 79.99/67 80/67.02 F Outlet Temperature 15.14/14.29 16/14.99 C 59.26/57.73 60.8/58.99 F

Condenser Heat Exchange Fluid R410A L-41b






14

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: L-41b Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling B Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 3.94 2.58 kg/min 8.68 5.69 lb/min 0.66

Composition, at compressor inlet n/a % wt

Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F


Total Capacity 11,267 9,948 W 38,443 33,945 Btu/hr 0.88 Sensible Capacity 8,281 7,774 W 28,257 26,526 Btu/hr 0.94 Total System Power Input 2,547 2,376 W 2,547 2,376 W 0.93 Compressor Power Input 2,100 1,937 W 2,100 1,937 W 0.92 Energy Efficiency Ratio (EER) 15.09 14.29 Btuh/W 15.09 14.29 Btuh/W 0.95

Coeff. Of Performance (COP) 4.42 4.19 0.95


15

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: L-41b


Heat Exchange Fluid R410A L-41b

Flow Rate (gas) 34.38 34.77 m^3/min 1214 1228 ft^3/min 1.01 Inlet Temperature 26.67/19.47 26.67/19.44 C 80/67.05 80.01/67 F Outlet Temperature 14.69/13.87 15.54/14.58 C 58.44/56.97 59.97/58.25 F

Condenser Heat Exchange Fluid R410A L-41b






16

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: L-41b Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H1 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a


Ambient Temps.



Total Capacity 10,036 10,193 W 34,245 34,781 Btu/hr 1.02 Sensible Capacity 10,036 10,193 W 34,245 34,781 Btu/hr 1.02 Total System Power Input 2,643 2,577 W 2,643 2,577 W 0.98 Compressor Power Input 2,211 2,147 W 2,211 2,147 W 0.97 Energy Efficiency Ratio (EER) n/a n/a W/W n/a n/a Btuh/W n/a


* Note: Refrigerant flow measurement is erratic for some heating tests. Data Source(s) for Refrigerant Properties NIST REFPROP Version 9.0

17

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: L-41b


Heat Exchange Fluid R410A L-41b Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature 8.33/6.11 8.33/6.11 C 47 /43 47 /43 F Outlet Temperature 6.71 n/a C 44.07 n/a F

Condenser Heat Exchange Fluid R410A L-41b Flow Rate (gas) 36.44 36.30 m^3/min 1287 1282 ft^3/min 1.00 Inlet Temperature 21.10 21.11 C 69.98 70 F Outlet Temperature 36.00 36.20 C 96.8 97.16 F





18

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: L-41b Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H3 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a


Ambient Temps.






19

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: L-41b


Heat Exchange Fluid R410A L-41b Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature -8.33/-9.44 -8.33/-9.44 C 17/15 17/15 F Outlet Temperature -9.19 n/a C 15.46 n/a F

Condenser Heat Exchange Fluid R410A L-41b Flow Rate (gas) 36.44 36.33 m^3/min 1287 1283 ft^3/min 1.00 Inlet Temperature 21.11 21.11 C 70 70 F Outlet Temperature 30.00 30.16 C 86 86.29 F





20

Manufacturer: Carrier Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt) Honeywell L-41a Alternative Lubricant Type and ISO Viscosity Modified POE oil Baseline Refrigerant and Lubricant R410A and Modified Oil Make and Model of System Carrier 25HBB336 and FX4CNF036 Nominal Capacity and Type of System 3.0 ton capacity split system Other System Changes All tests were done with modified POE oil with good miscibility for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, and a check valve was utilized in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating. The compressor was changed to same model calorimeter tested sample. System Data Base. Alt. Ratio Degradation Coefficient (Cooling)– Cd 0.06 0.07 1.17 Seasonal Energy Efficiency Ratio – SEER 14.61 14.5 0.99 Degradation Coefficient (Heating) – Cd * 0.118 0.25 2.12 Heating Seasonal Performance Factor - HSPF 8.356 8.596 1.03 * Note: If Cd is larger than 0.25, then use 0.25 for HSPF calculation. Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: L-41a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling A Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.18 kg 6.75 7 lb. 1.04 Refrigerant Mass Flow Rate 3.91 2.79 kg/min 8.60 6.15 lb/min 0.72 Composition, at compressor inlet n/a % wt Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F



21

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: L-41a


Heat Exchange Fluid R410A L-41a

Flow Rate (gas) 34.40 34.80 m^3/min 1215 1229 ft^3/min 1.01 Inlet Temperature 26.66/19.44 26.67/19.45 C 79.99/67 80/67.01 F Outlet Temperature 15.14/14.29 15.71/14.74 C 59.26/57.73 60.27/58.53 F

Condenser Heat Exchange Fluid R410A L-41a






22

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: L-41a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling B Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.18 kg 6.75 7 lb. 1.04 Refrigerant Mass Flow Rate 3.94 2.84 kg/min 8.68 6.25 lb/min 0.72


Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F





23

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: L-41a


Heat Exchange Fluid R410A L-41a

Flow Rate (gas) 34.38 34.69 m^3/min 1214 1225 ft^3/min 1.01 Inlet Temperature 26.67/19.47 26.67/19.47 C 80/67.05 80/67.05 F Outlet Temperature 14.69/13.87 15.21/14.36 C 58.44/56.97 59.38/57.84 F

Condenser Heat Exchange Fluid R410A L-41a






24

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: L-41a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H1 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.18 kg 6.75 7 lb. 1.04 Refrigerant Mass Flow Rate 2.86 2.23 kg/min 6.31 4.91 lb/min 0.78


Ambient Temps.






25

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: L-41a


Heat Exchange Fluid R410A L-41a Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature 8.33/6.11 8.33/6.11 C 47 /43 47 /43 F Outlet Temperature 6.71 6.57 C 44.07 43.83 F

Condenser Heat Exchange Fluid R410A L-41a Flow Rate (gas) 36.44 36.47 m^3/min 1287 1288 ft^3/min 1.00 Inlet Temperature 21.10 21.12 C 69.98 70.01 F Outlet Temperature 36.00 35.47 C 96.8 95.84 F





26

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: L-41a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H3 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a


Ambient Temps.



Total Capacity 6,143 6,040 W 20,961 20,609 Btu/hr 0.98 Sensible Capacity 6,143 6,040 W 20,961 20,609 Btu/hr 0.98 Total System Power Input 2,328 2,210 W 2,328 2,210 W 0.95 Compressor Power Input 1,903 1,783 W 1,903 1,783 W 0.94 Energy Efficiency Ratio (EER) n/a n/a W/W n/a 2.73 Btuh/W n/a



27

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: L-41a


Heat Exchange Fluid R410A L-41a Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature -8.33/-9.44 -8.33/-9.44 C 17/15 17/15 F Outlet Temperature -9.19 -9.71 C 15.46 14.53 F

Condenser Heat Exchange Fluid R410A L-41a Flow Rate (gas) 36.44 36.50 m^3/min 1287 1289 ft^3/min 1.00 Inlet Temperature 21.11 21.11 C 70 70 F Outlet Temperature 30.00 29.90 C 86 85.82 F





28

Manufacturer: Carrier Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt) DuPont DR-5 Alternative Lubricant Type and ISO Viscosity Modified POE oil Baseline Refrigerant and Lubricant R410A and Modified Oil Make and Model of System Carrier 25HBB336 and FX4CNF036 Nominal Capacity and Type of System 3.0 ton capacity split system Other System Changes All tests were done with modified POE oil with good miscibility for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, and a check valve was utilized in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating. The compressor was changed to same model calorimeter tested sample. System Data Base. Alt. Ratio Degradation Coefficient (Cooling)– Cd 0.06 0.08 1.33 Seasonal Energy Efficiency Ratio - SEER 14.61 14.7 4.01 Degradation Coefficient (Heating) – Cd * 0.118 0.25 2.12 Heating Seasonal Performance Factor - HSPF 8.356 8.264 0.99 * Note: If Cd is larger than 0.25, then use 0.25 for HSPF calculation. Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test

Type of System: Split HP Alternate Refrigerant: DR-5 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling A Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 3.91 3.05 kg/min 8.60 6.71 lb/min 0.78 Composition, at compressor inlet n/a % wt Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F



29

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: DR-5


Heat Exchange Fluid R410A DR-5

Flow Rate (gas) 34.40 34.63 m^3/min 1215 1223 ft^3/min 1.01 Inlet Temperature 26.66/19.44 26.66/19.44 C 79.99/67 79.99/67 F Outlet Temperature 15.14/14.29 15.36/14.51 C 59.26/57.73 59.64/58.11 F

Condenser Heat Exchange Fluid R410A DR-5






30

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: DR-5 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling B Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 3.94 3.08 kg/min 8.68 6.78 lb/min 0.78


Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F





31

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: DR-5


Heat Exchange Fluid R410A DR-5

Flow Rate (gas) 34.38 34.60 m^3/min 1214 1222 ft^3/min 1.01 Inlet Temperature 26.67/19.47 26.66/19.44 C 80/67.05 79.99/67 F Outlet Temperature 14.69/13.87 14.94/14.11 C 58.44/56.97 58.89/57.4 F

Condenser Heat Exchange Fluid R410A DR-5






32

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: DR-5 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H1 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate 2.86 2.28 kg/min 6.31 5.02 lb/min 0.80


Ambient Temps.






33

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: DR-5


Heat Exchange Fluid R410A DR-5 Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature 8.33/6.11 8.33/6.11 C 47 /43 47 /43 F Outlet Temperature 6.71 6.32 C 44.07 43.38 F

Condenser Heat Exchange Fluid R410A DR-5 Flow Rate (gas) 36.44 36.39 m^3/min 1287 1285 ft^3/min 1.00 Inlet Temperature 21.10 21.11 C 69.98 70 F Outlet Temperature 36.00 35.62 C 96.8 96.12 F





34

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: DR-5 Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H3 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 2.72 kg 6.75 6 lb. 0.89 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a


Ambient Temps.






35

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: DR-5


Heat Exchange Fluid R410A DR-5 Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature -8.33/-9.44 -8.33/-9.44 C 17/15 17/15 F Outlet Temperature -9.19 -8.93 C 15.46 15.93 F

Condenser Heat Exchange Fluid R410A DR-5 Flow Rate (gas) 36.44 36.42 m^3/min 1287 1286 ft^3/min 1.00 Inlet Temperature 21.11 21.11 C 70 70 F Outlet Temperature 30.00 30.07 C 86 86.13 F





36

Manufacturer: Carrier Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt) Arkema ARM-70a Alternative Lubricant Type and ISO Viscosity Modified POE oil Baseline Refrigerant and Lubricant R410A and Modified Oil Make and Model of System Carrier 25HBB336 and FX4CNF036 Nominal Capacity and Type of System 3.0 ton capacity split system Other System Changes All tests were done with modified POE oil with good miscibility for all refrigerants tested. To address expansion control differences, an EXV was utilized in conjunction with a liquid line solenoid valve in cooling, and a check valve was utilized in parallel to allow reverse flow. A fixed orifice was used as the expansion control in heating. The compressor was changed to same model calorimeter tested sample. System Data Base. Alt. Ratio Degradation Coefficient (Cooling)– Cd 0.06 0.09 1.50 Seasonal Energy Efficiency Ratio - SEER 14.61 13.91 0.95 Degradation Coefficient (Heating) – Cd * 0.118 0.25 2.12 Heating Seasonal Performance Factor - HSPF 8.356 8.307 0.99 * Note: If Cd is larger than 0.25, then use 0.25 for HSPF calculation. Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: ARM-70a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling A Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.06 kg 6.75 6.75 lb. 1.00 Refrigerant Mass Flow Rate 3.91 2.99 kg/min 8.60 6.59 lb/min 0.77 Composition, at compressor inlet n/a % wt Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F



37

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “A” Test Type of System: Split HP Alternate Refrigerant: ARM-70a


Heat Exchange Fluid R410A ARM-70a

Flow Rate (gas) 34.40 34.74 m^3/min 1215 1227 ft^3/min 1.01 Inlet Temperature 26.66/19.44 26.66/19.44 C 79.99/67 79.99/67 F Outlet Temperature 15.14/14.29 16.18/15.19 C 59.26/57.73 61.13/59.34 F

Condenser Heat Exchange Fluid R410A ARM-70a






38

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: ARM-70a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Cooling B Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type EXV EXV Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.06 kg 6.75 6.75 lb. 1.00 Refrigerant Mass Flow Rate 3.94 2.97 kg/min 8.68 6.55 lb/min 0.75


Ambient Temps.

Indoor db 26.67 26.67 C 80 80 F wb 19.44 19.44 C 67 67 F





39

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “B” Test Type of System: Split HP Alternate Refrigerant: ARM-70a


Heat Exchange Fluid R410A ARM-70a

Flow Rate (gas) 34.38 34.74 m^3/min 1214 1227 ft^3/min 1.01 Inlet Temperature 26.67/19.47 26.68/19.44 C 80/67.05 80.02/66.99 F Outlet Temperature 14.69/13.87 15.86/14.88 C 58.44/56.97 60.55/58.79 F

Condenser Heat Exchange Fluid R410A ARM-70a






40

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: ARM-70a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H1 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.06 kg 6.75 6.75 lb. 1.00 Refrigerant Mass Flow Rate 2.86 2.20 kg/min 6.31 4.84 lb/min 0.77


Ambient Temps.






41

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H1” Test Type of System: Split HP Alternate Refrigerant: ARM-70a


Heat Exchange Fluid R410A ARM-70a Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature 8.33/6.11 8.33/6.11 C 47 /43 47 /43 F Outlet Temperature 6.71 6.49 C 44.07 43.67 F

Condenser Heat Exchange Fluid R410A ARM-70a Flow Rate (gas) 36.44 36.33 m^3/min 1287 1283 ft^3/min 1.00 Inlet Temperature 21.10 21.11 C 69.98 70 F Outlet Temperature 36.00 33.89 C 96.8 93.01 F





42

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: ARM-70a Comparison Data Base. Alt. SI Units Base. Alt. IP Units Ratio Mode (Heating/Cooling) Heating H3 Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 m^3/min 3.646 3.646 ft^3/min 1 Nominal Motor Size 3 3 hp 1 Motor Speed 3500 3500 rpm 1 Expansion Device Type PISTON PISTON Lubricant Charge 0.74 0.74 L 25 25 fl. oz. 1 Refrigerant Charge 3.06 3.06 kg 6.75 6.75 lb. 1.00 Refrigerant Mass Flow Rate * n/a n/a kg/min n/a n/a lb/min n/a


Ambient Temps.






43

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM: “H3” Test Type of System: Split HP Alternate Refrigerant: ARM-70a


Heat Exchange Fluid R410A ARM-70a Flow Rate (gas) n/a n/a m^3/min n/a n/a ft^3/min n/a Inlet Temperature -8.33/-9.44 -8.33/-9.44 C 17/15 17/15 F Outlet Temperature -9.19 -9.29 C 15.46 15.27 F

Condenser Heat Exchange Fluid R410A ARM-70a Flow Rate (gas) 36.44 36.39 m^3/min 1287 1285 ft^3/min 1.00 Inlet Temperature 21.11 21.11 C 70 69.99 F Outlet Temperature 30.00 29.06 C 86 84.31 F





44

4. Conclusions

The proposed R-410A replacement refrigerants were able to be applied in the test system with minimal effort; however, none of the options are fully equivalent to R-410A on a drop-in basis. Most of the options were significantly lower in both cooling and heating capacity than R-410A. Additional study is required to evaluate the potential to minimize the performance differential through “soft optimization” such as charge and circuit optimization, or full technology optimization of compression, heat exchanger, airflow, and control technology for each refrigerant candidate.

TEST REPORT #22 System Drop-in Testing of R … Heating, and Refrigeration Institute (AHRI) Low-GWP...

Documents

Transcript of TEST REPORT #22 System Drop-in Testing of R … Heating, and Refrigeration Institute (AHRI) Low-GWP...