Installation Instructions - STIEBEL ELTRON sol 20 si Bedienung Und Installation

2. Installation instructions

2.1 Other relevant documents
Please note the detailed operating
instructions in the separate installation
instructions for the control units, compact
installations and cylinders.
2.2 Regulations and standards
During installation, please note:
DIN EN 12828 Heating systems in buildings
– designing hot water
heating systems
DIN EN 12975 Solar heating systems and
their components
DIN 4757 Solar heating systems
DIN 4807 Expansion vessels
DIN 3320 Safety shut-off valves
DIN 1052 Timber structures
DIN 1055 Load assumptions for
building structures
DIN EN 1044 Brazing materials
VDE 0185 General lightning protection
regulations
TRD 802 Steam boilers category III
TRD 402 Equipment for steam boiler
systems with hot water
generators, category IV
DVGW Code of Practice GW 2
Please observe the accident prevention
regulations of the employers' liability
insurance association, the building
regulations and other regulations imposed
by the authorities.
2.3 Safety instructions
Collector
A solar collector generates heat
!
when exposed to sunlight or other
types of light. This leads to collector
connectors getting very hot, even when
they are not filled. Risk of burns. Cover
the collectors with opaque material until
they are actually installed. It is advisable
to leave collectors in their packaging
until they are installed.
Neither drop the collector nor
!
anything onto the collector.
Never step onto or stand on the
!
collector.
Never leave the collector
!
unsupported or unsecured. It the
collector falls down, the glass may break.
It is only permissible for the max.
!
cylinder temperature set on the
control unit to be above 60 °C, if it is
used in conjunction with a thermostatic
domestic hot water mixer. Without this
there is a risk of scalding at the hot
water draw-off point.
2.4 Specification
type
Part no.
Height
Width
Depth
Weight (dry)
Operating pressure min.
Permissible operating pressure
Test pressure (absorber)
Test media
Pressure test of compete solar heating system
Supply
Collector pressure drop (31 l/h)
Collector pressure drop (129.9 l/h)
Collector pressure drop (300.4 l/h)
Idle temperature
Heat transfer medium
Heat transfer medium content incl. manifold pipe
Overall area
Aperture opening
Absorber area
Angle of inclination
Casing
Hood
Absorber
Gasket
Connecting pieces
Conversion factor h
Heat loss coefficient a
1
Heat loss coefficient a
2
sol 20 si
mm
mm
mm
kg
bar
bar
bar
bar
mbar
mbar
mbar approx. 283.5 (water, 20 °C)
°C
l
m²
m²
m²
°
aluminium (salt water resistant)
single pane safety glass, 3 mm
aluminium, highly selectively coated, copper tubes,
laser welded (> 600 spots per metre)
corrugated stainless steel pipe with union nut
221099
1923
1148
105
41
3.5
6
10 (factory setting)
water (at the factory)
7.8 with H - 30 L
G ¾" (male)
approx. 6.7 (water, 20 °C)
approx. 66.7 (water, 20 °C)
209
H-30 L, ready mixed
2.15
2.2
2.0
2.0
20 to 80
EPDM
(brass) G ¾"
0.82
3.17
0.0243
21