STIEBEL ELTRON SOL 27 PREMIUM W - Manual (Page 4)

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Simply the Best
INSTALLATION INSTRUCTIONS
SOL 27 PREMIUM S & W COLLECTORS - 230016 & 230017
single pane safety glass. As the light strikes the absorber
plate, it is converted to heat. The highly selective vacuum
coating of the absorber and the thermal insulation on the
back of the absorber keep heat lossed to the environment to
a minimum.
The thermal energy produced by the collector is transported
by the heat transfer medium (solar loop fl uid), via a
circulating pump, to the storage tank(s)/ The inside of the
collector can fog up under certain operating conditions
(e.g., large tank with low temperature compared to the
outdoor temperature and/or high relative humidity). Vent
holes are provided in the collectors for venting humidity and
equalizing air pressure.
Technical Data & Specifi cations
Type SOL 27 Premium S SOL 27 Premium W
Item Number 230016 230017
Type Standard / Vertical Wide / Horizontal
Height 85.5˝ / 2171 mm 46.1˝ / 1171 mm
Width 46.1˝ / 1171 mm 85.5˝ / 2171 mm
Depth 3.8˝ / 96 mm 3.8˝ / 96 mm
Weight 88.2 lb / 40 kg 89.3 lb / 40.5 kg
Casing material Aluminum, corrosion resistant
Glass cover ESG
Glass thickness 0.125˝ / 3.2 mm
Thermal insulation thickness 2˝ / 50 mm
Thermal insulation material Mineral wool, low outgassing, WLG 040
Collector connection 22 mm plug-in connector
Max. idle temperature <410F / 210C
Min. operating pressure 50.75 psi / 0.35 MPa
Max. permissible pressure 87 psi / 0.6 MPa
Pressure drop @ 1 gpm 0.75 ft. head
Test pressure 247 psi / 1.7 MPa
Test medium 40% Propylene Glycol
Fluid capacity 0.4 gal / 1.5 l 0.48 gal / 1.83 l
Nominal fl ow rate 0.25 - 3.75 gpm
Angle of inclination 10 - 90
Total area 27.34 ft² / 2.54 m²
Aperture area 25.73 ft² / 2.39 m²
Absorber area 25.62 ft² / 2.38 m²
Absorber material Aluminum, highly selective coating,
copper pipes, laser welded
Gasket EPDM
Conversion factor η
0
0.82 0.83
Effective heat transfer coef. a1 3.46 W / (m ²K)
Effective heat transfer coef. a2 0.0153 W / m ²K²
Absorption level α 95% ± 2%
Emission level ε 5% ± 1%
Collector yield >525 kWh / (m ²) per year
2 5
3
3.5
4
4.5
p
(f
t. head)
SOL 27 Premium S & W Pressure Drop Curves
0
0.5
1
1.5
2
2.5
0 0.5 1 1.5 2 2.5 3
Pr
essu
re
Dr
o
p
Flow Rate (GPM)
SOL 27 Premium S
SOL 27 Premium W