test report #16 system drop-in test of refrigerant blend r-32

Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Low-GWP Alternative Refrigerants Evaluation Program (Low-GWP AREP) TEST REPORT #16 System Drop-in Test of Refrigerant Blend R-32/R-134a (95/5), R-32, and DR-5 in Water-To-Water Heat Pump Ellisa Lim Shawn Hern ClimateMaster 7300 SW 44th, Oklahoma City, 73179 July 8, 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 Refrigerant’s Compositions (Mass%)

R-32 R-32 (100) R-32/R-134a R-32/R-134a (95/5) DR-5 R-32/R-1234yf (72.5/27.5)

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Low-GWP AREP SYSTEM DROP-IN TEST

1. Introduction:

A R410A water-to-water heat pump that is rated at 3-ton capacity is utilized to perform drop-in tests for alternative refrigerants. The three alternative refrigerants that have been selected are 100%R32, 95%R32+5%R134a, and DR-5. The unit was tested per conditions stated in ISO13256-2, which is listed in Table-1.

Table-1: Test Conditions per ISO 13256-2

Water Loop Heat Pump (WLHP)

Ground Water Heat Pump (GWHP)

Ground Loop Heat Pump (GLHP)

Cooling Heating Cooling Heating Cooling Heating Liquid entering indoor side heat exchanger (load side[°F] 53.6 104 53.6 104 53.6 104 Liquid entering outdoor side heat exchanger (source side) [°F] 86 68 59 50 77 32 Air surrounding unit, Tdb (°F) 59-86 59-86 59-86 59-86 59-86 59-86

Fluid flow rate (gpm) Rated Rated Rated Rated Rated Rated 2. Details of Test Setup:

a. Description of System

The following is a brief description of the system used for drop-in test. • Name and model number of the tested system: water-to-water heat pump unit, TMW036 • Nominal capacity of the system: 36,000 Btuh/hr • Baseline refrigerant, charge, flow rate, and lubricant type: R410A, 72oz, POE oil

Heat pump unit for this test was a R410A water-to-water heat pump used in hydronic applications and the unit has a rated capacity of 3 ton (36,000 Btu/hr). The unit consists of a single-stage scroll compressor, co-axial heat exchangers, a thermal expansion valve, a reversing valve and a filter drier. There are two different sizes of coaxial heat exchangers in the unit - the load coil utilizes a coaxial heat exchanger that is rated at 84,000 Btuh/hr and the source coil utilizes a coaxial heat exchanger that is rated at 60,000 Btuh/hr. The schematic of the refrigeration cycle is shown in Fig 1 and 2 for cooling and heating mode respectively.

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Fig. 1 – Refrigeration Cooling cycle Legend: TXV = Thermal Expansion Valve RV = Reversing Valve FD = Filter Drier LLT = Leaving Load coil Temperature ELT = Entering Load coil Temperature LST = Leaving Source coil Temperature EST = Entering Source coil Temperature P = Pressure measurement T = Temperature measurement

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Fig. 2 – Refrigeration Heating cycle

Legend: TXV = Thermal Expansion Valve RV = Reversing Valve FD = Filter Drier LLT = Leaving Load coil Temperature ELT = Entering Load coil Temperature LST = Leaving Source coil Temperature EST = Entering Source coil Temperature P = Pressure measurement T = Temperature measurement

b. Description of Tests Conducted The unit was installed in a test cell as shown in Fig 3. The test cell consists of two water loops – source and load water loops. Source water loop simulates the loop that exchanges heat with the ground and load water loop simulates a building hydronic loop that needs to be conditioned. Each loop is conditioned with a 4 stage water-to-water heat pump and an electric heater for tempering fluid temperature before it enters into a tank. In addition to a conditioning unit, each loop is also equipped with a flow meter, a variable speed pump, and 2 in-stream temperature sensors to measure entering and leaving water temperature from the tested heat pump unit.

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Fig 3: Schematic of water-to-water test facility

The following is the list of instrumentation that are used to measure temperature, pressure and pressure differential (refer to Fig. 1 and Fig. 2 for the locations of the instrumentations on the heat pump unit):

Table 2: List of instrument and accuracy

Instrument Make/ Model Accuracy Range Flow meter (source and load loop) Mag 6000 - R5T185L ± 0.25% 0-200 gpm RTD Pyromation - 4-wire ± 0.14°F 25-160°F Thermocouple T-type ± 2°F -148 – 395°F

Pressure transducer Setra model 209 ± 0.2% Suction: 0-500 psig Discharge: 0-1000 psig

Differential pressure transducer Setra model 264 ± 0.5% 0 – 500 psig Drop-in test procedure: During development, units are generally charged to a starting amount; then tested at conditions specified in ISO 13256-2. Charge is then incrementally added to optimize performance before the unit is tested at a broad range of conditions. The drop-in tests were started by running unit baseline performance with a predetermined amount of R410A from development, which is 72oz.

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Before the tests were taken, the unit was operated continuously for at least 30 minutes after specified conditions had been established and steady state condition has been achieved. Steady state condition is established when fluctuation of fluid temperatures, flow rates, and pressure readings are within a specific tolerance limit stated in ISO 13256-2. After the test conditions stabilized, data were collected for 30 minutes with a sampling rate of 5 seconds. Each data set that contains pressures, temperatures, and flow rates are used to compute unit overall efficiency and capacity. The baseline results were compared against the previous data to identify if there are any defective parts in the system or measurement errors. Once test results were satisfactory, R-410A was evacuated. For drop-in tests, the same amount of an alternative refrigerant was charged into the unit and the unit was tested with the same test conditions. No charge optimization was performed during drop-in tests; therefore, unit was not optimized in the drop-in tests. Soft-optimization procedure: After drop-in tests, unit capacities and efficiencies were evaluated to determine which alternative refrigerant sample would be utilized for a soft-optimization test. Soft optimization was pursued only when unit COP is not 5% worse than R-410A; otherwise, the test was stopped after drop-in test was completed. After reviewing the drop-in test results, DR-5 seems to exhibit similar refrigerant working envelope as R410A. Therefore, DR-5 was selected as a good candidate to be utilized in soft-optimization test. For soft-optimization test, the original TXV was replaced with a manual adjustable expansion valve to adjust the amount of superheat at the compressor suction. The test was started by charging with 64oz. or 8oz less than the original charge. TXV settings and refrigerant charge were then modified in order to obtain improved unit performance and sufficient amount of superheat to prevent liquid floodback.

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3. Results The refrigerant properties of 100%R32 and 95%R32+5%R134a were obtained from NIST REFPROP 8.0 and the refrigerant properties of DR-5 were obtained from Dupont. The overviews of drop-in test results are summarized in Fig. 4-6. The graphs show cooling and heating capacities, COP values, and unit power consumption with respect to baseline test results. The graphs show that the capacity of the unit with R32 increased up to 14% compared to R410A; however, the corresponded power consumption increased by 19%, which results in approximately 3% lower COP compared to the baseline refrigerant. Overall R32 refrigerant was able to increase unit cooling and heating capacities due to its high volumetric capacities. However, the unit consumed additional compressor power because of higher refrigerant operating envelope. Suction and discharge pressure increased by 2-10 psi and 15-30 psi respectively. The drop-in test shows the overall performance of the unit with DR-5 is more comparable to R410A with an exception of GLHP condition in heating mode, which has entering water temperature at the evaporator of 32°F. In this test mode, the refrigerant at the evaporator outlet was observed still in 2-phase.

Compressor Power Consumption (% relatvie to R410A)

-5.0

0.0

5.0

10.0

15.0

20.0

WLHPCool

GWHPCool

GLHPCool

WLHPHeat

GWHPHeat

GLHPHeat

Test Conditions

Com

pres

sor P

ower

Con

sum

ptio

n (%

re

lativ

e to

R41

0A)

R32 R32+R134a DR-5

Fig.4: Compressor Power Consumption relative to R410A baseline

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Fig.5: Unit COP

Fig.6: Cooling and heating performance relative to R410A baseline

Compressor discharge temperatures for all of four refrigerants were compared and plotted in Fig.7. The plot shows that R32 and R32+R134a blend are consistently higher than the discharge temperatures of the unit tested with R410A and DR-5. The increase in R32 and R32+134a blend

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discharge temperatures ranges from 22-44°F and 23-46°F respectively. Potentially high discharge temperatures can lead to compressor wear for an extended operational usage. During the R32 refrigerant changeover, oil discoloration was observed. A sample was sent to CPI Engineering for an analysis and it was concluded that high discharge refrigerant temperature has caused the sulfur in POE oil to interact chemically with the compressor internal components.

Discharge Temperature For Drop-in Test

100

120

140

160

180

200

220

240

30 40 50 60 70 80 90

Entering Source Heat Exchanger Temperature (°F)

Dis

char

ge T

empe

ratu

re (°

F)

R410a R32+R134a DR-5

Fig.7: Refrigerant Discharge Temperature

Cooling mode

heating mode

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Low_GWP AREP SYSTEM DROP-IN TEST DATA FORM Manufacturer: ClimateMaster Manufacturer’s Notation: CLM Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt)

95%R32+5%134a

Alternative Lubricant Type and ISO Viscosity Emerson Ultra 22CC POE oil Baseline Refrigerant and Lubricant R410A – POE oil Make and Model of System ClimateMaster TMW036 Nominal Capacity and Type of System 3-ton unit / Water-to-water

unit Comparison Data Base. Alt. SI Units Base. Alt. IP UNits Ratio Mode (Heating/Cooling) Cooling

WLHP

Compressor Type Scroll Scroll Compressor Displacement 0.103 0.103 M^3/min Nominal Motor Size 3.4 3.4 hp Motor Speed 3500 3500 rpm Expansion Device Type Thermal

Expansion Valve

Thermal Expansion

Valve

Lubricant Charge 0.71 0.71 kg 1.56 1.56 lb Refrigerant Charge 2.04 2.04 kg 4.5 4.5 lb Refrigerant Mass Flow Rate

N/A N/A kg/min N/A N/A lb/min

Composition, at compr. Inlet if applicable

XXXXXX

- % wt

Ambient Temps.

In - door

db 19.69 23.09 C 67.44 73.56 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 9380 9847 W 32009

33597 Btu/hr 1.05

Sensible Capacity W N/A N/A Btu/hr Total System Power Input 2237.3 2536 W 2237.3 2536 W 1.13 Compressor Power Input 2138.3 2436 W 2138.3 2436 W 1.14 Energy Efficiency Ratio (EER)

4.21 3.88 W/W 14.38 13.24 Btuh/W 0.92

Coeff. Of Performance (COP)

- -

Other System Changes Filter drier and POE oil were changed after baseline performance was taken

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Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: 95%R32+5%134a (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid Water water Flow Rate (liquid) 34.05 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 12.00 C 53.60 53.60 F Outlet Temperature 7.97 7.82 C 46.34 46.07 F

Condenser Heat Exchange Fluid 19.7% of

Methanol 19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A

Flow Rate (liquid) 34.07 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 30.00 30.01 C 86.0

86.01 F

Outlet Temperature 35.11 35.46 C 95.21 95.83 F Refrigerant Side Data Temperatures & Pressures

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

[psig] T [F] P

[psig] Compressor Suction 8.48 813.14 8.05 834.45 47.26 117.93 46.48 121.03 Compressor Discharge 64.33 2321.07 84.85 2477 147.80 336.64 184.74 359.33 Condenser Inlet 61.15 2321.07 80.62 2477 142.07 336.64 177.11 359.33 Condenser Outlet 30.20 - 25.92 2477 86.36 - 78.66 359.39 Expansion Device Inlet - - 86.36 - - Subcooling, at expan. device 9.93 - 16.53 - 17.9 - 29.76 - Evaporator Inlet 4.56 - 4.35 840.85 40.21 39.83 121.95 Evaporator Outlet 7.56 813.14 6.53 834.45 45.61 117.93 43.75 121.03 Evaporator Superheat 4.07 - 2.23 - 7.33 - 4.02 - Data Source(s) for Refrigerant Properties NIST RefProp 8

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95%R32+5%134a

Alternative Lubricant Type and ISO Viscosity Emerson Ultra 22CC POE oil Baseline Refrigerant and Lubricant R410a – POE oil Make and Model of System ClimateMaster TMW036 Nominal Capacity and Type of System 3-ton unit / Water-to-water


GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 18.64 21.72 C 65.55 71.11 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 10662 11280 W 36377.44

38486.76 Btu/hr 1.06

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 1615.56 1816.34 W 1615.56 1816.34 W 1.12 Compressor Power Input 1505.78 1705 W 1505.78 1705 W 1.13 Energy Efficiency Ratio (EER)

6.57 6.15 W/W 22.41 21.00 Btuh/W 0.94


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Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: 95%R32+5%134a (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid

water water

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.08 L/min 9.0 9.0 gal/min Inlet Temperature 15.00 12.00 C 53.60 53.60 F Outlet Temperature 20.37 7.29 C 45.5 45.13 F

Condenser Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.06 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 15.00 C 59

59 F

Outlet Temperature 7.50 20.74 C 68.7 69 F Refrigerant Side Data Temperatures & Pressures


[psig] T [F] P

[psig] Compressor Suction 8.00 779.02 7.32 806.70 46.4 113 45.18 117.00 Compressor Discharge 46.04 1587 59.13 1673 114.87 230.17 138.44 242.63 Condenser Inlet 43.76 1587 56.35 1673 110.77 230.17 133.44 242.63 Condenser Outlet 15.95 - 15.82 1666 60.73 - 60.48 241.65 Expansion Device Inlet - - - - - - - Subcooling, at expan. device 9.84 - 11.6 - 17.71 - 20.88 - Evaporator Inlet 3.04 - 3.48 813.88 37.47 38.27 118.04 Evaporator Outlet 7.11 779.02 6.39 806.70 44.79 113 43.50 117.00 Evaporator Superheat 4.84 - 2.48 - 8.72 - 4.46 -

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95%R32+5%134a



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 19.37 22.60 C 66.87

72.68 F

wb - - C - - F Out - door

db - - C - - F wb - - C - - F


35225 Btu/hr 1.05

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 1997 2261 W 1997 2261 W 1.13 Compressor Power Input 1895 2157 W 1895 2157 W 1.14 Energy Efficiency Ratio (EER)

4.94 4.55 W/W 16.85 15.5 Btuh/W 0.92


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Heat Exchange Fluid Water water Flow Rate (gas) m ^ 3/min N/A N/A Flow Rate (liquid) 34.07 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 12.00 C 53.60 53.60 F Outlet Temperature 7.78 7.63 C 46.0 46.0 F




77 F



[psig] T [F] P

[psig] Compressor Suction 8.38 801.47 7.68 824.44 47.08 116.24 45.83 119.57 Compressor Discharge 57.74 2055.45 75.49 2187.26 135.93 298.11 167.88 317.23 Condenser Inlet 54.87 2055.45 71.79 2187.26 130.77 298.11 161.23 317.23 Condenser Outlet 25.63 - 22.47 2185.09 78.13 - 72.45 316.92 Expansion Device Inlet - - - - - Subcooling, at expan. device 9.75 - 15.03 - 17.55 - 27.06 - Evaporator Inlet 4.13 - 3.99 831.13 39.44 - 39.17 120.55 Evaporator Outlet 7.55 801.47 6.37 824.44 45.60 113 43.46 119.57 Evaporator Superheat 4.39 - 2.22 - 7.91 - 3.99 -

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95%R32+5%134a


unit Comparison Data Base. Alt. SI Units Base. Alt. IP UNits Ratio Mode (Heating/Cooling) Heating

WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.68 23.52 C 71.02

74.34 F


db - - C - - F wb - - C - - F

Total Capacity 12411 13979 W 42347.61 47696.04 Btu/hr 1.13 Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2645.27 2986.6 W 2645.27 2986.6 W 1.13 Compressor Power Input 2539.45 2879.61 W 2539.45 2879.61 W 1.13 Energy Efficiency Ratio (EER)

W/W - - Btuh/W


4.68 4.69 1.00

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Heat Exchange Fluid 19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) m ^ 3/min N/A Flow Rate (liquid) 34.06 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 19.99 19.99 C 68 68 F Outlet Temperature 15.63 15.09 C 60.13 59.16 F

Condenser Heat Exchange Fluid Water water Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.07 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 40.06 40.2 C 104

104.34 F



[psig] T [F] P

[psig] Compressor Suction 15.16 995.967 14.20 1048.84 59.28 144.45 57.56 152.12 Compressor Discharge 72.95 2797.65 89.83 2935.89 163.32 405.76 193.69 425.81 Condenser Inlet 65.63 2797.65 79.54 2935.89 150.14 405.76 175.18 425.81 Condenser Outlet 43.72 - 39.71 2927.39 110.70 - 103.47 424.58 Expansion Device Inlet 43.72 - - 110.70 - - Subcooling, at expan. device 3.89 - 9.57 - 7.00 - 17.23 - Evaporator Inlet 10.38 14.45 1059.65 50.69 58.00 153.69 Evaporator Outlet 13.77 995.967 12.25 1048.84 56.78 144.45 57.56 152.12 Evaporator Superheat 4.62 - 1.55 - 8.32 - 2.79 -

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95%R32+5%134a



GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.11 23.45 C 70.00

74.21 F


db - - C - - F wb - - C - - F

Total Capacity 10317 11048 W 35200.13 37695 Btu/hr 1.07 Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2631 2899 W 2631 2899 W 1.10 Compressor Power Input 2514 2781 W 2514 2781 W 1.11 Energy Efficiency Ratio (EER)

W/W - - Btuh/W


3.91 3.83 0.98

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Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol



water water

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 39.92 39.95 C 103.86

103.90 F



[psig] T [F] P

[psig] Compressor Suction 6.90 793.02 5.82 796.33 44.42 115.02 42.48 115.50 Compressor Discharge 74.88 2713.88 98.26 2792.06 166.78 393.61 208.87 404.95 Condenser Inlet 66.60 2713.88 85.34 2792.06 151.88 393.61 185.62 404.95 Condenser Outlet 42.20 - 38.88 2791.10 107.96 - 101.98 404.81 Expansion Device Inlet - - - - 107.96 - - Subcooling, at expan. device 4.17 - 8.42 - 7.50 - 15.15 - Evaporator Inlet 3.31 - 8.25 805.34 37.95 46.84 116.80 Evaporator Outlet 4.09 793.02 3.09 796.33 39.36 115.02 37.56 115.50 Evaporator Superheat 3.23 - 1.34 - 5.81 - 2.42 -

20


95%R32+5%134a



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 20.50 23.38 C 68.90 74.10 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 8122 8485 W 27712.50 28950.02 Btu/hr 1.04 Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2656.57 2748 W 2656.57 2748 W 1.03 Compressor Power Input 2525.57 2615 W 2525.57 2615 W 1.04 Energy Efficiency Ratio (EER)

W/W - - Btuh/W


3.08 3.12 1.01

Other System Changes System Data Base. Alt. Ratio Degradation Coefficient – Cd Seasonal Energy Efficiency Ratio - SEER Heating Seasonal Performance Factor - HSPF

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Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.05 L/min 9.0 9.0 gal/min Inlet Temperature 0.13 0.0032 C 32.24 32.01 F Outlet Temperature -2.35 -2.60 C 27.77 27.31 F


Water water


104.11 F



[psig] T [F] P

[psig] Compressor Suction -1.76 583.46 -3.30 577.39 28.83 84.62 26.05 83.74 Compressor Discharge 82.96 2627.98 108.42 2677.82 181.33 381.15 227.15 388.38 Condenser Inlet 71.88 2627.98 91.59 2677.82 161.38 381.15 196.86 388.38 Condenser Outlet 40.23 - 38.53 2682.38 104.41 - 101.36 389.04 Expansion Device Inlet - 104.41 - - Subcooling, at expan. device 4.84 - 7.12 - 8.71 - 12.83 - Evaporator Inlet -5.31 - 1.64 585.13 22.45 - 34.96 84.86 Evaporator Outlet -5.84 583.46 -6.07 577.39 21.48 115.02 21.07 83.74 Evaporator Superheat 2.99 - 0.87 - 5.39 - 1.57 -

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100%R32



WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 19.69 25.02 C 67.44 77.027 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F


34655.15 Btu/hr 1.08

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2237.3 2588 W 2237.3 2588 W 1.16 Compressor Power Input 2138.3 2487 W 2138.3 2487 W 1.16 Energy Efficiency Ratio (EER)

4.21 3.91 W/W 14.38 13.35 Btuh/W 0.93


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Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: 100%R32 (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid

water water



19.7% of Methanol

19.7% of Methanol


85.99 F



[psig] T [F] P

[psig] Compressor Suction 8.48 813.14 8.74 856.02 47.26 117.93 47.73 124.15 Compressor Discharge 64.33 2321.07 84.42 2547.20 147.80 336.64 183.95 369.44 Condenser Inlet 61.15 2321.07 82.49 2547.20 142.07 336.64 180.48 - Condenser Outlet 30.20 - 26.95 2549.06 86.36 - 80.51 369.71 Expansion Device Inlet - - 86.36 - - Subcooling, at expan. device 9.93 - 15.82 - 17.9 - 28.48

-

Evaporator Inlet 4.56 - 5.37 863.51 40.21 - 41.66 125.24 Evaporator Outlet 7.56 813.14 7.17 856.02 45.61 117.93 44.91 124.15 Evaporator Superheat 4.07 - 3.54 - 7.33 - 6.37 -

24


100%R32



GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 18.64 23.12 C 65.55 73.62 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 10662 11512 W 36377.44

39279 Btu/hr 1.08

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 1615.56 1886.58 W 1615.56 1886.58 W 1.17 Compressor Power Input 1505.78 1775.38 W 1505.78 1775.38 W 1.18 Energy Efficiency Ratio (EER)

6.57 6.05 W/W 22.41 20.63 Btuh/W 0.92


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Heat Exchange Fluid

water water



19.7% of Methanol

19.7% of Methanol


59.44 F



[psig] T [F] P

[psig] Compressor Suction 8.00 779.02 7.46 827.14 46.4 113 45.43 119.97 Compressor Discharge 46.04 1587 58.38 1723.81 114.87 230.17 137.08 250.02 Condenser Inlet 43.76 1587 57.12 1723.81 110.77 230.17 134.81 250.02 Condenser Outlet 15.95 - 16.48 1718.05 60.73 - 61.66 249.18 Expansion Device Inlet - - - - - Subcooling, at expan. Device 9.84 - 11.31 - 17.71 - 20.36 - Evaporator Inlet 3.04 - 3.98 834.94 37.47 39.16 121.10 Evaporator Outlet 7.11 779.02 6.65 827.14 44.79 113 43.96 119.97 Evaporator Superheat 4.84 - 3.25 - 8.72 - 5.85 -

26


100%R32



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 19.37 24.30 C 66.87

75.74 F


db - - C - - F wb - - C - - F


36154 Btu/hr 1.08


4.94 4.54 W/W 16.85 15.48 Btuh/W 0.92


27


Heat Exchange Fluid water water Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.07 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 12.00 C 53.60 53.61 F Outlet Temperature 7.78 7.53 C 46.0 45.55 F




77 F



[psig] T [F] P

[psig] Compressor Suction 8.38 801.47 8.23 846.33 47.08 116.24 46.81 122.75 Compressor Discharge 57.74 2055.45 75.75 2248.51 135.93 298.11 168.35 326.12 Condenser Inlet 54.87 2055.45 74.12 2248.51 130.77 298.11 165.41 326.12 Condenser Outlet 25.63 - 23.46 846.33 78.13 - 74.23 326.00 Expansion Device Inlet - - - - - Subcooling, at expan. device 9.75 - 14.36 - 17.55 - 25.84 - Evaporator Inlet 4.13 - 4.96 853.68 39.44 40.92 123.82 Evaporator Outlet 7.55 801.47 7.06 846.33 45.60 113 46.82 122.75 Evaporator Superheat 4.39 - 3.36 - 7.91 - 6.05 -

28


100%R32



WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.68 27.12 C 71.02

80.82 F


db - - C - - F wb - - C - - F

Total Capacity 12411 14210 W 42347.61 48484 Btu/hr 1.14 Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2645.27 3129 W 2645.27 3129 W 1.18 Compressor Power Input 2539.45 3021 W 2539.45 3021 W 1.19 Energy Efficiency Ratio (EER)

W/W - - Btuh/W


4.68 4.56 0.97

29


Heat Exchange Fluid 19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) m ^ 3/min N/A N/A Flow Rate (liquid) 34.06 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 19.99 19.99 C 68 67.98 F Outlet Temperature 15.63 15.04 C 60.13 59.07 F

Condenser Heat Exchange Fluid Water water Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.07 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 40.06 40.00 C 104

104.01 F



[psig] T [F] P

[psig] Compressor Suction 15.16 995.967 15.41 1065.90 59.28 144.45 59.75 154.59 Compressor Discharge 72.95 2797.65 92.18 3008.17 163.32 405.76 197.93 436.30 Condenser Inlet 65.63 2797.65 82.28 3008.17 150.14 405.76 183.70 436.30 Condenser Outlet 43.72 - 39.95 2999.28 110.70 - 103.90 435.01 Expansion Device Inlet 43.72 - 110.70 - - Subcooling, at expan. device 3.89 - 9.49 - 7.00 - 17.08 - Evaporator Inlet 10.38 - 15.29 1080.16 50.69 - 59.52 156.66 Evaporator Outlet 13.77 995.967 13.26 1065.90 56.78 144.45 55.86 154.59 Evaporator Superheat 4.62 - 3.62 - 8.32 - 6.51 -

30


100%R32



GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.11 26.64 C 70.00

79.95 F

wb C - - F Out - door

db C - - F wb C - - F


W/W - - Btuh/W


3.91 3.91 1.0

31


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) m ^ 3/min N/A N/A Flow Rate (liquid) 34.05 34.07 L/min 9.0 9.0 gal/min Inlet Temperature 9.99 10.00 C 49.98 50.00 F Outlet Temperature 6.54 6.18 C 43.76 43.12 F


water water


104.00 F



[psig] T [F] P

[psig] Compressor Suction 6.90 793.02 6.07 815.52 44.42 115.02 42.92 118.28 Compressor Discharge 74.88 2713.88 96.16 2881.45 166.78 393.61 205.09 417.92 Condenser Inlet 66.60 2713.88 86.44 2881.45 151.88 393.61 187.59 417.92 Condenser Outlet 42.20 - 39.38 2877.93 107.96 - 102.89 417.40 Expansion Device Inlet - - - 107.96 - - Subcooling, at expan. device 4.17 - 8.33 - 7.50 - 15.00 - Evaporator Inlet 3.31 9.17 828.25 37.95 48.51 120.13 Evaporator Outlet 4.09 2.48 815.52 39.36 115.02 36.46 118.28 Evaporator Superheat 3.23 - 2.27 - 5.81 - 4.08 -

32


100%R32



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 20.50 27.26 C 68.90 81.05 F wb C - - F

Out - door

db C - - F wb C - - F


W/W - - Btuh/W


3.08 3.12 1.01

33


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.08 L/min 9.0 9.0 gal/min Inlet Temperature 0.13 0.0484 C 32.24 32.09 F Outlet Temperature -2.35 -2.66 C 27.77 27.21 F


Water Water


103.99 F



[psig] T [F] P

[psig] Compressor Suction -1.76 583.46 -3.22 600.51 28.83 84.62 26.21 87.10 Compressor Discharge 82.96 2627.98 107.49 2758.78 181.33 381.15 225.48 400.12 Condenser Inlet 71.88 2627.98 93.95 2758.78 161.38 381.15 201.12 400.12 Condenser Outlet 40.23 - 38.84 2760.45 104.41 - 101.92 400.37 Expansion Device Inlet - - 104.41 - - Subcooling, at expan. device 4.84 - 7.16 - 8.71 - 12.88 - Evaporator Inlet -5.31 3.22 611.07 22.45 37.80 88.62 Evaporator Outlet -5.84 -6.06 600.51 21.48 115.02 21.09 87.10 Evaporator Superheat 2.99 - 1.29 - 5.39 - 2.33 - Additional Notes At the end of the tests, discoloration of POE oil was observed. A sample was sent to Joe Karnaz at CPI Engineering for analysis.

34


DR-5



WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

- % wt

Ambient Temps.

In - door

db 19.69 23.15 C 67.44 73.66 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F


32834.67 Btu/hr 1.03

Sensible Capacity W N/A N/A Btu/hr Total System Power Input 2237.3 2290 W 2237.3 2290 W 1.02 Compressor Power Input 2138.3 2188 W 2138.3 2188 W 1.02 Energy Efficiency Ratio (EER)

4.21 4.18

W/W 14.38 14.26 Btuh/W 0.99


- -

35

Low-GWP AREP SYSTEM DROP-IN TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: DR-5 (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid

Water water



19.7% of Methanol

19.7% of Methanol


85.54 F



[psig] T [F] P

[psig] Compressor Suction 8.48 813.14 5.54 795.32 47.26 117.93 41.97 115.35 Compressor Discharge 64.33 2321.07 65.88 2328.73 147.80 336.64 150.59 337.75 Condenser Inlet 61.15 2321.07 65.99 2328.73 142.07 336.64 150.79 337.75 Condenser Outlet 30.20 - 25.56 2323.45 86.36 - 78.01 336.98 Expansion Device Inlet - - 86.36 - - Subcooling, at expan. device 9.93 - 15.90 - 17.9 - 28.62 - Evaporator Inlet 4.56 - 5.29 805.05 40.21 41.52 116.76 Evaporator Outlet 7.56 813.14 6.52 795.32 45.61 117.93 43.74 115.35 Evaporator Superheat 4.07 - -0.25 - 7.33 - -0.46 - Data Source(s) for Refrigerant Properties Dupont Additional Notes

36


DR-5



GWHP


Expansion Valve

Thermal Expansion

Valve

XXXXXX


N/A N/A kg/min N/A N/A lb/min N/A


XXXXXX

% wt

Ambient Temps.

In - door

db 18.64 21.39 C 65.55 70.51 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 10662 11039 W 36377.44

37664 Btu/hr 1.04

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 1615.56 1637 W 1615.56 1637 W 1.01 Compressor Power Input 1505.78 1525 W 1505.78 1525 W 1.01 Energy Efficiency Ratio (EER)

6.57 6.64 W/W 22.41 22.66 Btuh/W 1.01


37


Heat Exchange Fluid

water water



19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A ft ̑3/min Flow Rate (liquid) 34.06 34.08 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 14.99 C 59

58.99 F



[psig] T [F] P

[psig] Compressor Suction 8.00 779.02 4.99 773.28 46.4 113 40.99 112 Compressor Discharge 46.04 1587 46.17 1590 114.87 230.17 115.11 230.65 Condenser Inlet 43.76 1587 45.88 1590 110.77 230.17 114.59 230.65 Condenser Outlet 15.95 - 17.98 1579 60.73 - 64.37 228.99 Expansion Device Inlet - - - - - - - Subcooling, at expan. device 9.84 - 8.83 - 17.71 - 15.89 - Evaporator Inlet 3.04 - 3.92 783 37.47 39.06 113.53 Evaporator Outlet 7.11 779.02 5.65 773.3 44.79 113 42.16 112.15 Evaporator Superheat 4.84 - 0.02 - 8.72 - 0.03 -

38


DR-5



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 19.37 22.31 C 66.87

72.16 F


db - - C - - F wb - - C - - F


34376 Btu/hr 1.03


4.94 4.90 W/W 16.85 16.73 Btuh/W 0.99


39


Heat Exchange Fluid

Water water



19.7% of Methanol

19.7% of Methanol


77 F



[psig] T [F] P

[psig] Compressor Suction 8.38 801.47 5.04 786.72 47.08 116.24 41.08 114.10 Compressor Discharge 57.74 2055.45 58.64 2064 135.93 298.11 137.55 299.38 Condenser Inlet 54.87 2055.45 58.55 2064 130.77 298.11 137.39 299.38 Condenser Outlet 25.63 - 22.98 2057 78.13 - 73.36 298.30 Expansion Device Inlet - - - - - - - Subcooling, at expan. device 9.75 - 13.69 - 17.55 - 24.63 - Evaporator Inlet 4.13 - 4.61 796.41 39.44 - 40.29 115.51 Evaporator Outlet 7.55 801.47 5.04 786.72 45.60 113 42.66 114.10 Evaporator Superheat 4.39 - -0.43 - 7.91 - -0.78

-

40


DR-5



WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt XXXXXX

XXXXXX

XXXXXX

Ambient Temps.

In - door

db 21.68 25.73 C 71.02

78.31 F


db - - C - - F wb - - C - - F

Total Capacity 12411 13180 W 42347.61 44971.79 Btu/hr 1.06 Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 2645.27 2680 W 2645.27 2680 W 1.01 Compressor Power Input 2539.45 2572 W 2539.45 2572 W 1.01 Energy Efficiency Ratio (EER)

W/W - - Btuh/W


4.68 5.12 1.09

41


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol



Water water


104.09 F



[psig] T [F] P

[psig] Compressor Suction 15.16 995.967 12.59 1001.44 59.28 144.45 54.66 145.25 Compressor Discharge 72.95 2797.65 72.33 2764.12 163.32 405.76 162.20 400.91 Condenser Inlet 65.63 2797.65 68.82 2764.12 150.14 405.76 155.87 400.91 Condenser Outlet 43.72 - 41.69 2756.09 110.70 - 107.03 399.73 Expansion Device Inlet 43.72 - - 110.70 - - Subcooling, at expan. device 3.89 - 6.78 - 7.00 - 12.20 - Evaporator Inlet 10.38 18.38 1014.42 50.69 65.08 147.13 Evaporator Outlet 13.77 995.967 12.14 1001.44 56.78 144.45 53.86 145.25 Evaporator Superheat 4.62 - -0.16 - 8.32 - -0.29

-

42


DR-5



GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.11 23.58 C 70.00

74.44 F


db - - C - - F wb - - C - - F


W/W - - Btuh/W


3.91 3.99 1.02

43


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol



water water


104.03 F



[psig] T [F] P

[psig] Compressor Suction 6.90 793.02 3.13 754.42 44.42 115.02 37.68 109.42 Compressor Discharge 74.88 2713.88 70.22 2659.14 166.78 393.61 158.40 385.67 Condenser Inlet 66.60 2713.88 65.85 2659.14 151.88 393.61 150.54 385.67 Condenser Outlet 42.20 - 40.88 2654.42 107.96 - 105.59 384.99 Expansion Device Inlet - - - - 107.96 - - Subcooling, at expan. device 4.17 - 6.01 - 7.50 - 10.82 - Evaporator Inlet 3.31 - 11.89 765.19 37.95 53.41 110.98 Evaporator Outlet 4.09 793.02 3.20 754.42 39.36 115.02 37.75 109.42 Evaporator Superheat 3.23 - -1.14 - 5.81 - -2.05 -

44


DR-5



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 20.50 26.44 C 68.90 79.58 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F


W/W - - Btuh/W


3.08 3.16 1.03

45


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.06

L/min 9.0 9.0 gal/min

Inlet Temperature 0.13 0.008 C 32.24 32.01 F Outlet Temperature -2.35 -2.41 C 27.77 27.65 F


Water water


104.00 F



[psig] T [F] P

[psig] Compressor Suction -1.76 583.46 -5.40 552.11 28.83 84.62 22.28 80.08 Compressor Discharge 82.96 2627.98 86.09 2520.67 181.33 381.15 186.97 365.59 Condenser Inlet 71.88 2627.98 76.96 2520.67 161.38 381.15 170.53 365.59 Condenser Outlet 40.23 - 41.09 2523.39 104.41 - 105.96 365.98 Expansion Device Inlet - 104.41 - - Subcooling, at expan. device 4.84 - 3.71 - 8.71 - 6.69 - Evaporator Inlet -5.31 - 3.33 562.74 22.45 - 37.98 81.61 Evaporator Outlet -5.84 583.46 -5.72 552.11 21.48 115.02 21.71 80.08 Evaporator Superheat 2.99 - -1.20 - 5.39 - -2.16 -

46

Low_GWP AREP SYSTEM SOFT-OPTIMIZATION TEST DATA FORM Manufacturer: ClimateMaster Manufacturer’s Notation: CLM Basic Information Alternative Refrigerant (If not proprietary, composition as Charged, % wt)

DR-5



WLHP


Expansion Valve

Thermal Expansion

Valve




- - % wt

Ambient Temps.

In - door

db 19.69 23.4 C 67.44 77.7 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F


31847 Btu/hr 0.99

Sensible Capacity W N/A N/A Btu/hr Total System Power Input 2237.3 2290 W 2237.3 2208 W 0.99 Compressor Power Input 2138.3 2188 W 2138.3 2106.6 W 0.99 Energy Efficiency Ratio (EER)

4.21 4.2

W/W 14.38 14.35 Btuh/W 1.0


47

Low-GWP AREP SYSTEM SOFT OPTIMIZATION TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: DR-5 (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid

Water water

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A N/A N/A

Flow Rate (liquid) 34.05 34.06 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 12.00 C 53.60 53.60 F Outlet Temperature 7.97 8.06 C 46.34 46.5 F


19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A ft ̑3/min Flow Rate (liquid) 34.07 34.06 L/min 9.0 9.0 gal/min Inlet Temperature 30.00 30.0 C 86.0

86 F



[psig] T [F] P

[psig] Compressor Suction 8.48 813.14 8.7 795.32 47.26 117.93 47.6 113.8 Compressor Discharge 64.33 2321.07 71.5 2328.73 147.80 336.64 160.8 328 Condenser Inlet 61.15 2321.07 70.6 2328.73 142.07 336.64 159 328 Condenser Outlet 30.20 - 26.8 2323.45 86.36 - 80.2 328 Expansion Device Inlet - - - 86.36 - - - Subcooling, at expan. device 9.93 - 13.6 - 17.9 - 24.5 - Evaporator Inlet 4.56 - 4.8 805.05 40.21 - 40.6 115.2 Evaporator Outlet 7.56 813.14 8.2 795.32 45.61 117.93 46.8 113.8 Evaporator Superheat 4.07 - 3.3 - 7.33 - 5.9 -

48


DR-5



GWHP


Expansion Valve

Thermal Expansion

Valve

XXXXXX




XXXXXX

% wt

Ambient Temps.

In - door

db 18.64 23.33 C 65.55 74.0 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F

Total Capacity 10662 10563 W 36377.44

36043 Btu/hr 0.99

Sensible Capacity N/A N/A W N/A N/A Btu/hr Total System Power Input 1615.56 1581.3 W 1615.56 1581.31 W 0.98 Compressor Power Input 1505.78 1469.3 W 1505.78 1469.28 W 0.98 Energy Efficiency Ratio (EER)

6.57 6.6 W/W 22.41 22.47 Btuh/W 1.00


49

Low-GWP AREP SYSTEM SOFT-OPTIMIZATION TEST DATA FORM Type of System: Water-to-water heat pump Alternate Refrigerant: DR-5 (e.g., SSHP, window RAC, chiller, etc.) (and composition as charged, % weight, if not proprietary) Air/Water Side Data Base. Alt. SI Units Base. Alt. IP Units Ratio Evaporator

Heat Exchange Fluid

water water



19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A ft ̑3/min Flow Rate (liquid) 34.06 34.08 L/min 9.0 9.0 gal/min Inlet Temperature 12.00 15.0 C 59.0

59.0 F



[psig] T [F] P

[psig] Compressor Suction 8.00 779.02 7.83 755.7 46.4 113 46.1 109.6 Compressor Discharge 46.04 1587 50.6 1535 114.87 230.17 123.1 222.6 Condenser Inlet 43.76 1587 49.8 1535 110.77 230.17 121.7 222.6 Condenser Outlet 15.95 - 18.05 1528 60.73 - 64.5 221.6 Expansion Device Inlet - - - - - - - Subcooling, at expan. device 9.84 - 7.6 - 17.71 - 13.6 - Evaporator Inlet 3.04 - 3.2 765 37.47 37.7 111.0 Evaporator Outlet 7.11 779.02 8.3 755.7 44.79 113 46.9 109.6 Evaporator Superheat 4.84 - 3.5 - 8.72 - 6.3 -

50


DR-5



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 19.37 24.5 C 66.87

76.2 F


db - - C - - F wb - - C - - F


33282 Btu/hr 0.99


4.94 4.93 W/W 16.85 16.83 Btuh/W 1.0


51


Heat Exchange Fluid

Water water



19.7% of Methanol

19.7% of Methanol


77 F



[psig] T [F] P

[psig] Compressor Suction 8.38 801.47 8.3 773.6 47.08 116.24 46.9 112.2 Compressor Discharge 57.74 2055.45 63.94 2000 135.93 298.11 147.1 290.2 Condenser Inlet 54.87 2055.45 63.11 2000 130.77 298.11 145.6 290.2 Condenser Outlet 25.63 - 23.7 1998 78.13 - 74.7 289.8 Expansion Device Inlet - - - - - - - Subcooling, at expan. device 9.75 - 11.8 - 17.55 - 21.3 - Evaporator Inlet 4.13 - 4.2 783.2 39.44 - 39.6 113.6 Evaporator Outlet 7.55 801.47 8.1 773.6 45.60 113 46.6 112.2 Evaporator Superheat 4.39 - 3.3 - 7.91 - 5.9

-

52


DR-5



WLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.68 25.73 C 71.02

78.31 F


db - - C - - F wb - - C - - F


W/W - - Btuh/W


4.68 5.1 1.09

53


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol



Water water


104.1 F



[psig] T [F] P

[psig] Compressor Suction 15.16 995.967 14.7 987.3 59.28 144.45 58.51 143.2 Compressor Discharge 72.95 2797.65 77.0 2720.7 163.32 405.76 170.7 394.6 Condenser Inlet 65.63 2797.65 71.4 2720.7 150.14 405.76 160.5 394.6 Condenser Outlet 43.72 - 42.9 2714 110.70 - 109.3 393.6 Expansion Device Inlet 43.72 - - 110.70 - - Subcooling, at expan. device 3.89 - 4.9 - 7.00 - 8.8 - Evaporator Inlet 10.38 16.5 1003 50.69 61.7 145.5 Evaporator Outlet 13.77 995.967 13.6 987.3 56.78 144.45 56.4 143.2 Evaporator Superheat 4.62 - 2.4 - 8.32 - 4.4

-

54


DR-5



GWHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 21.11 26.3 C 70.00

79.4 F


db - - C - - F wb - - C - - F


W/W - - Btuh/W


3.91 4.0 1.02

55


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol



water water


103.9 F



[psig] T [F] P

[psig] Compressor Suction 6.90 793.02 6.22 753.6 44.42 115.02 43.2 109.3 Compressor Discharge 74.88 2713.88 82.06 2611.7 166.78 393.61 179.7 378.8 Condenser Inlet 66.60 2713.88 75.06 2611.7 151.88 393.61 167.1 378.8 Condenser Outlet 42.20 - 41.7 2610 107.96 - 107.0 378.5 Expansion Device Inlet - - - - 107.96 - - Subcooling, at expan. device 4.17 - 4.5 - 7.50 - 8.17 - Evaporator Inlet 3.31 - 9.3 766 37.95 48.7 111.1 Evaporator Outlet 4.09 793.02 3.7 753.6 39.36 115.02 38.6 109.3 Evaporator Superheat 3.23 - 2.0 - 5.81 - 3.6 -

56


DR-5



GLHP


Expansion Valve

Thermal Expansion

Valve




XXXXXX

% wt

Ambient Temps.

In - door

db 20.50 27.6 C 68.90 81.6 F wb - - C - - F

Out - door

db - - C - - F wb - - C - - F


W/W - - Btuh/W


3.08 3.16 1.03

57


Heat Exchange Fluid

19.7% of Methanol

19.7% of Methanol

Flow Rate (gas) N/A N/A m ^ 3/min N/A N/A Flow Rate (liquid) 34.08 34.06

L/min 9.0 9.0 gal/min

Inlet Temperature 0.13 0.1 C 32.24 32.19 F Outlet Temperature -2.35 -2.3 C 27.77 27.8 F


Water water


103.99

F



[psig] T [F] P

[psig] Compressor Suction -1.76 583.46 -2.44 551.4 28.83 84.62 27.6 79.97 Compressor Discharge 82.96 2627.98 92.3 2516 181.33 381.15 198.1 365.0 Condenser Inlet 71.88 2627.98 82 2516 161.38 381.15 179.6 365.0 Condenser Outlet 40.23 - 40.8 2516 104.41 - 105.4 365.0 Expansion Device Inlet - 104.41 - - Subcooling, at expan. device 4.84 - 3.98 - 8.71 - 7.16 - Evaporator Inlet -5.31 - 5.44 561.4 22.45 - 41.8 81.42 Evaporator Outlet -5.84 583.46 -4.61 551 21.48 115.02 23.7 79.97 Evaporator Superheat 2.99 - 1.8 - 5.39 - 3.25 -

test report #16 system drop-in test of refrigerant blend r-32

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