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Solar Evacuated Tubes
 

SRCC Certification Performance Data

SunMaxx-20 Evacuated Tube Solar Collectors recently concluded a rigorous, independent testing process by the SRCC (Solar Ratings and Certification Corporation) at the FSEC facility in Southern Florida.  At the beginning of April, SunMaxx received the testing report from the SRCC, listing the performance of the SunMaxx-20 Evacuated Tube Solar Collectors:

SunMaxx Collector Thermal Performance Rating

Megajoules Per Panel Per Day

Category
(Ti - Ta)

Clear Day
23 MJ/m2 * d

Mildly Cloudy
17 MJ/m2 * d

Cloudy Day
11 MJ/m2 * d

A (-5 C)

33

25

17

B (5 C)

32

24

16

C (20 C)

30

22

13

D (50 C)

25

17

9

E (80 C)

19

11

4

Thousands of BTU Per Panel Per Day

Category
(Ti - Ta)

Clear Day
2000 BTU/ft2 * d

Mildly Cloudy
1500 BTU/ft2 * d

Cloudy Day
1000 BTU/ft2 * d

A (-9 F)

31

23

16

B (9 F)

30

22

15

C (36 F)

28

20

13

D (90 F)

23

16

8

E (144 F)

18

10

3

  • A:  Pool Heating (warm climate)
  • B:  Pool Heating (cool climate)
  • C:  Water Heating (warm climate)
  • D:  Water Heating (cool climate)
  • E:  Air Conditioning

 

Pressure Drop Ratings

Flow

∆ P

ml/s

GPM

Pa

in H2O

20

0.32

774

3.11

50

0.79

3806

15.28

80

1.27

9083

36.47

For standardization purposes in comparing solar collectors with one another, the SRCC, and other comparison agencies use the C Value (Water Heating in Warm Climates) at Clear Day Conditions to provide an accurate distinction between how well two different collectors operate under the same conditions.

View the SunMaxx-20 SRCC Certification Report!

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