Viessmann Vitosol 300-T User manual

VIESMANN
Installation instructions
for contractors
Vitosol 300-T
Type SP3A
Vacuum tube collector based on the heat pipe principle
VITOSOL 300-T
5366 351 GB 8/2008 Dispose after installation.

Please follow these safety instructions closely to prevent accidents and
material losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!Please note
This symbol warns against the
risk of material losses and
environmental pollution.
Note
Details identified by the word "Note"
contain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
&Work on gas appliances must only
be carried out by a qualified gas fit-
ter.
&Work on electrical equipment must
only be carried out by a qualified
electrician.
Regulations
Observe the following when working
on this system
&all legal instructions regarding the
prevention of accidents,
&all legal instructions regarding
environmental protection,
&theCodeofPracticeofrelevant
trade associations,
&all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards.
Workingonthesystem
&Isolate the system from the power
supply and check that it is no longer
'live', e.g. by removing a separate
fuse or by means of a mains isola-
tor.
&Safeguard the system against
unauthorised reconnection.
&When using gas as fuel, also close
the main gas shut‐off valve and
safeguard against unauthorised
reopening.
Safety instructions
2
5366 351 GB

Preparing for installation.......................................................................... 4
Installation sequence
Vertical rooftop installation.......................................................................... 5
&Component overview ............................................................................... 5
&Fitting roof hooks or mounting brackets .................................................... 7
&Fitting mounting rails................................................................................ 13
&Fitting the connecting chamber ................................................................ 16
Installation on flat roofs............................................................................... 17
&Component overview ............................................................................... 17
&Determining the collector row distance "z"................................................ 18
&Adjusting the angle of inclination α........................................................... 19
&Fitting the collector supports .................................................................... 20
&Fitting the mounting rails and connecting chamber ................................... 24
Hydraulic connections ................................................................................ 25
&Linking the connecting chamber............................................................... 25
&Fitting the connection set ......................................................................... 26
&Fitting the vacuum tubes and collector temperature sensor....................... 28
Installation.................................................................................................. 32
Commissioning and adjustment .................................................................. 34
Index
3
5366 351 GB

Earthing and lightning protection of the solar heating system
Install an electrical conductor on the
pipework system of the solar circuit in
the lower part of the building in com-
pliance with VDE [or local regula-
tions].
The connection of the collector sys-
tem to a new or existing lightning pro-
tection system or the provision of
local earthing must only be carried out
by authorised trained personnel, who
must take into account the site condi-
tions.
Preparing for installation
4
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Component overview
Roof tile cover
1Timber
&38 x 58 x 2140 mm
&30 x 100 x 2140 mm
2Roof hooks
3Zinc-plated countersunk chip-
board screw (Spax-s) 6 x 80 mm
4Zinc-plated countersunk chip-
board screw (Spax-s) 5 x 30 mm
Slate cover
5Roof hooks
6Zinc-plated countersunk chip-
board screw (Spax-s) 6 x 30 mm
Corrugated sheet cover
7Roof hooks for corrugated roofing
sheet, profile 5 and 6
8Roof hooks for corrugated roofing
sheet, profile 8
Vertical rooftop installation
5
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Plain tile cover
9Roof hooks
4Zinc-plated countersunk chip-
board screw (Spax-s) 5 x 30 mm
Fixing without roof hooks
qP Mounting bracket
For all forms of roofing
qQ Clamping bracket
qW T-slot bolt
qE Washer
qR Hexagon nut
qT Mounting rail
qZ Mounting rail with tube holders
qU Retaining plate
qI Connecting casing
qO Vacuum tube
wP Retaining rubber
Accessories for one collector array
wQ Connecting pipe
wW Thermal insulation
Connection set:
wE Connecting pipe (short)
wR Connecting pipe (long)
wT Locking ring fitting (elbow 90°),
722
wZ Support sleeve
wU U-pipe
wI Thermal insulation cap
wO Fixing screws
eP Strain relief fitting
eQ Sensor retainer
eW Installation pipe
Vertical rooftop installation (cont.)
6
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Fitting roof hooks or mounting brackets
Overview –Installation with roof hooks
Dimension x according to the width of
thetilehead.
AVacuum tube
BClamping bracket
CMounting rail with tube holders
DMounting rail
ERoof hooks
FTimber, 38 x 58 mm
(only for roof tiles)
GTimber, 30 x 100 mm
(only for roof tiles)
HRetaining plate
KConnecting casing
Overview –Installation with mounting brackets
(e.g. on sheet steel roofs)
Vertical rooftop installation (cont.)
7
5366 351 GB

Use on-site fixing elements to secure
the brackets (for example standing
seams).
AVacuum tube
BClamping bracket
CMounting rail with tube holders
DMounting bracket
EMounting rail
FRetaining plate
GConnecting casing
Vertical rooftop installation (cont.)
8
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For installations without roof hooks, mounting brackets are used in place of the
roof hooks.
Note
Centre the mounting rails; maintain dimension f = 81 mm.
Combination a mm b mm c mm d mm e mm
2m
2
850 ——— —
3m
2
1260 ——— —
2m
2
/2 m
2
850 1520 850 2370 670
2m
2
/3 m
2
850187512602930 820
3m
2
/3 m
2
1260 2230 1260 3490 970
Vertical rooftop installation (cont.)
9
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Fitting the mounting brackets
Secure the mounting brackets to the
substructure on-site in accordance
with the dimensions given in the illus-
trations on page 7 and 9.
Fitting roof hooks for roof tile cover
1. Push up the roof tiles in accor-
dance with the dimensions shown
in the illustration on page 7.
2. Secure the timber to the joists at
the head of the exposed rows of
tilesinaccordancewiththedimen-
sions shown in the illustration on
page 7.
Vertical rooftop installation (cont.)
10
5366 351 GB

3. Hook the roof hooks into the timber
in accordance with the dimensions
shown in the illustration on page 9.
4. Remove the drip tabs and protru-
sions from the roof tiles where the
roof hooks are to be fitted.
5. Secure the roof hooks and position
the roof tiles.
Continue with "Mounting rail instal-
lation" on page 13.
Fitting roof hooks for slate cover
1. Mark the position of the roof hooks
in accordance with the dimensions
shown in the illustration on page 7
and 9.
2. Remove slates from the roof hook
contact points.
3. Secure the roof hooks to the roof
surface. Fit commercially available
lead flashing to protect against the
ingress of moisture.
4. Cover the roof.
Continue with "Mounting rail instal-
lation" on page 13.
Vertical rooftop installation (cont.)
11
5366 351 GB

Fitting roof hooks for corrugated sheet cover
1. Mark the position of the roof hooks
in accordance with the dimensions
shown in the illustration on page 7
and 9.
2. Position each roof hook at the level
ofabattenontotheridgeofthe
roofing sheet and, through the hole
in the roof hook, drill a further hole
into the apex of the corrugation.
3. Secure each roof hook with a
screw 78mmandasealing
washer (on-site provision) to the
battens.
Continue with "Mounting rail instal-
lation" on page 13.
Fitting roof hooks for plain tile cover
1. Mark the position of the roof hooks
in accordance with the dimensions
shown in the illustration on page 7
and 9.
2. Remove tiles from the roof at the
hook contact points.
3. Hook the roof hooks onto the bat-
tens and position and align on top
of the tile below.
4. Secure the roof hooks to the bat-
tens.
Vertical rooftop installation (cont.)
12
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5. Cover the roof; trim tiles to suit with
an angle grinder; trim approx.
30 mm off the tiles.
Fitting mounting rails
Turn the tee bolts 90° for all installation steps.
ARoof hooks or mounting brackets
1. Secure the mounting rails to the
roof hooks or mounting brackets;
align vertically and horizontally.
Vertical rooftop installation (cont.)
13
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2. Align and fix the retaining plates to
the mounting rails.
Vertical rooftop installation (cont.)
14
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Note
Centre the mounting rails; maintain dimension f = 81 mm.
3. Fit clamping brackets onto the
mounting rails; do not yet tighten
the bolts.
4. Click the mounting rails with tube
holders into the clamping brackets;
align and fasten.
Note
Tube holders on opposing rails
must be aligned.
Vertical rooftop installation (cont.)
15
5366 351 GB

Fitting the connecting chamber
Turn the tee bolts 90° for all installation steps.
1. Position the connecting chamber
onto the mounting rails and click
into the retaining plates.
2. Align the connecting chamber.
Note
The tube holders on the mounting
rails must be in line with those in
the connecting chamber; where
necessary, align with a piece of
string.
3. Tighten the connecting chamber
with the clamping brackets.
4. Where several collectors are
installed side-by-side, continue
with "Connecting the connecting
chamber" on page 25, otherwise
continue with "Fitting the connec-
tion set" on page 26.
Vertical rooftop installation (cont.)
16
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Component overview
Installation on flat roofs
17
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ACollector supports for angles of
inclination α25 to 50°, pre-
assembled with screws, washers,
nuts and clamping brackets
1Collector support
2Horizontal base supports
3Adjustable support, lower part
4Adjustable support, upper part
5Cross brace
6Hexagon screw M 8 x 20
7Washer 78.4 mm
8Hexagon nut M 8
qZ Mounting rail with tube holders
qI Connecting casing
qO Vacuum tube
wP Retaining rubber
Accessories for one collector array
wQ Connecting pipe
wW Thermal insulation
Connection set:
wE Connecting pipe (short)
wR Connecting pipe (long)
wT Locking ring fitting (elbow 90°),
722
wZ Support sleeve
wU U-pipe
wI Thermal insulation cap
wO Fixing screws
eP Strain relief fitting
eQ Sensor retainer
eW Installation pipe
Determining the collector row distance "z"
When installing several collectors in series, maintain distance z (see page 22).
Example:
Würzburg is located at approx. 50° latitude.
Installation on flat roofs (cont.)
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5366 351 GB

1. Determine the angle of the sun β.
In Germany this angle (subject to
latitude) lies between 12 ° (Flens-
burg) and 20 ° (Freiburg).
Angle of the sun:
90° −23.5° −latitude
(23.5 ° is to be assumed as con-
stant)
90 ° −23.5 °−50 ° = 16.5 °
2. Calculating dimension z:
h = 2165 mm
α=45°
β=16.5°
z Collector row distance
h Collector height
αCollector angle of inclination
βAngle of the sun
Adjusting the angle of inclination α
Position the collector array as far south as possible; linear tube axis aligned
east-west.
Installation on flat roofs (cont.)
19
5366 351 GB

1. Secure the adjustable support with
the horizontal base supports.
2. Secure the upper and lower adjus-
table supports in accordance with
the required angle of inclination
(see page 18).
Fitting the collector supports
Ballast and max. load on the substructure
Calculation in accordance with DIN 1055-4, 8/1986 and DIN 1055-5, 6/1975
Installation on flat roofs (cont.)
20
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