16
Number
of collec-
tors
Connection type Max.
recomm.
flow rate
Connecting pipe
Copper
Kombiflex
array x collector
1
1 × 1
2 l/min Cu 15 × 1 DN 12
2
1 x 2 series
4 l/min Cu 15 × 1 DN 16
3
1 x 3 series
6 l/min Cu 18 × 1 DN 16
4
1 x 4 series
8 l/min Cu 18 × 1 DN 20
5
1 × 5 series
10 l/min Cu 22 × 1 DN 20
6
2 × 3 parallel
12 l/min Cu 22 × 1 DN 25
8
2 × 4 parallel
16 l/min Cu 28 × 1,5 DN 25
9
3 × 3 parallel
18 l/min Cu 28 × 1,5 DN 25
10 2 × 5 parallel
20 l/min Cu 28 × 1,5 DN 25
12 3 × 4 parallel
24 l/min Cu 28 × 1,5
-
Max. 30 m of the inlet and outlet piping together.
Fig. 26: Position of a temperature sensor
In no event plastic tubes can be used for inlet/outlet
piping as they do not meet the operation requirements
for solar systems.
Pipes for collectors can be lead through disused chim-
neys, ventilation shafts or grooves in a wall. In order to
prevent high thermal losses through convection, open
shafts shall be properly sealed. Also thermal dilatation
shall be remembered and pipes fitted with compensators
or other compensation elements.
Piping shall be connected to the house earthing.
Pipes of the solar system must be fitted with
thermal insulation e.g. of SOLARFLEX type, so
that thermal dissipation from the pipes does not deteri-
orate a total efficiency of the solar system. The thermal
insulation must be resistant to temperatures up to 160
°C, for outdoor piping also a UV protection is essential
as well as non-deliquescence of the material. For indoor
piping, the thermal insulation should be at least 13 mm
thick, for outdoor piping at least 19 mm.
Place the thermal probe into the pocket X-piece at the
outlet from the last collector, see pic. 26.
A twisted wire 2x1 mm
2
, non-shielded should be used,
separated from power cables.
Its maximum length is 100 m. Minimize the number of
electrical boxes a terminal blocks.
connection length: up to 25 m cross section: 0.25 mm
2
connection length: up to 50 m cross section: 0.5 mm
2
connection length: up to 100 m cross section: 1.0 mm
2
• the thermal and mechanical resistance of the wire
used shall correspond to the environs the wire passes
through.
6. TEMPERATURE SENSOR POSITIONING
Tab. 1: Recommended pipe diameters
AV23 Flow rate regulator with
indicator 2-12 l/min, 3/4“
3/8” air discharge valve and
3/8” ball valve up to 160°C
Fig. 25 Possible collector connections
Содержание KPS1
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