Euroterm ESK 2.5 SB, ESK 2.5 SB T, ESK 2.5 SB - TU Installation Manual
The highest
eciency
The eciency of the
selective collectors is the
highest, commercially
accessible for residential
types of applications.
More power
Release up to 50% more
power by square meter
than conventional solar
collector.
Attractive design
Unique product, with
optimize and attractive
design.
Reliable and
tested materials
Tempered glass,
selective foil, embossed
back side metal sheet
and strong aluminum
prole, enabling reliable
functioning.
SOLAR
COLLECTORS
Excellent eciency,
the best characteristics, high quality
Installation manual
CONTENTS
Remarks ............................................................................................................................................. 5
Technical specications ........................................................................................................... 6-9
Safety instructions ...................................................................................................................... 10
Installation instructions ...................................................................................................... 11-12
Filling and testing ..................................................................................................................... 13
Fixing and mounting .......................................................................................................... 14-15
Connections ............................................................................................................................ 16-19
Collector array layout .............................................................................................................. 20
Pipe connections ........................................................................................................................ 21
Installation schemes .................................................................................................................. 22
REMARKS
A solar collector generates heat
from sunlight and all other types
of light. This leads to collector connectors getting very hot, even when
they are not lled. This creates a
risk of burning. Cover the collectors with opaque material until the
installation has been completed. It
is recommended you leave the collector inside its packaging until it is
installed.
Never install any shut-o valves in
the line between the collectors and
the safety valve. The safety valve responds at 87 PSI pressure.
Never set the Solar loop presure
greater then potable pressure.
Neither drop the collector nor anything onto the collector.
Never step onto or stand on the collector.
Never leave the collector unsupported or unsecured. The glass
could break if the collector falls over.
All sensor wiring needs to be rated
for expected temperatures. All sensor wiring needs to be protected
from degradation and false signals.
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copper absorber with Eta plus selective foil
0.2 mm, corrugated
low iron tempered glass, 4 mm thick
dimensions 2149 x 1159 x 90 mm
Technical characteristics:
SELECTIVE SOLAR COLLECTOR
TYPE ESK 2.5 - SB
copper absorber with Eta plus selective foil
0.2 mm, corrugated
low iron tempered glass, 4 mm thick
dimensions 2149 x 1159 x 90 mm
Technical characteristics:
SELECTIVE SOLAR COLLECTOR
TYPE ESK 2.5 - SB U
ESK 2.5 SB - U
ESK 2.5 SB
Tip
Gross area
Light entering area
Absorber surface (corrugate)
Absorber material
Absorption coefficient (Eta plus)
Emission coefficient (Eta plus)
Cu Pipe register frame
Collective Cu pipe frame
Absorber volume
Transparent front cover
Solar light transmission through glass
Solar energy transmission through glass
Number of connections
Connection diameter
Max. working / test pressure
Stagnation temperature
Insulation - back side
Insulation - on the sides
Back area
Collector construction
Welding method
Height
Width
Depth
Weight
(m
2
)
(m
2
)
(m
2
)
(%)
(%)
(mm)
(mm)
(l)
(%)
(%)
(R)
(bar)
(
o
C)
(mm)
(mm)
(mm)
(kg)
copper sheet with "Eta plus" selectiv surface coating
4mm tempered solar glass - AGC
10 / 14
199
40 mm glass wool (50kg/m
3
)
-
0.5 mm embossed aluminium sheet
aluminium profil AlMgSi 0,5 F22
ultrasonic
2,49
2,35
2,32
95 ± 2
5 ± 2
Ф 8 x 0,5
Ф 22 x 0,8
1,7
92 ± 2
91 ± 2
4
Ф 22
2149
1159
90
44
2,49
2,35
2,32
95 ± 2
5 ± 2
Ф 8 x 0,5
Ф 22 x 0,8
1,7
92 ± 2
91 ± 2
2
Ф 22
2149
1159
90
44
Collector eciency
Pressure drop
Collector efficiency for G = 800 W/m
2
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
Tm* [Km2/W]
Absorber
Aperture
Gross
Reference area Absorber area Aperture area Gross area
η0 (-)
807.0 457.0 667.0
a
1
81.4 54.4 25.4 )K²m/W(
a2 (W/m²K²) 0.0042 0.0041 0.0039
Pressure drop in Pa
0
200
400
600
800
1000
1200
1400
0 50 100 150 200 250 300 350 400
Flowrate [l/h]
20° C
Flow rate [l/h]
0 80 160 240 320 400
Pressure drop [Pa]
0 155 352 593 877 1203
copper absorber with Eta plus selective foil
0.2 mm, corrugated
low iron tempered glass, 9mm lled with argon, 2 x 4 mm thick
dimensions 2149 x 1159 x 102 mm
Technical characteristics:
Technical characteristics:
copper absorber with Eta plus selective foil
0.2 mm, corrugated
low iron tempered glass, 9mm lled with argon, 2 x 4 mm thick
dimensions 2149 x 1159 x 102 mm
SELECTIVE SOLAR COLLECTOR
TYPE ESK 2.5 - SB T
SELECTIVE SOLAR COLLECTOR
TYPE ESK 2.5 - SB TU
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