Viessmann VITOSOL 200-T SD2A 2m2 Series, Руководство по установке

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Installation on Flat Roofs
or Freestanding Installation
32
Determining the Collector Row Distance “z”
Legend:
z=Collector row distance
h=Collector height
α
=Collector angle of inclination
β
=Solar angle
Refer to the Vitosol System
Design Guidelines for
more information on
calculating “z”.
When installing several collectors in
series, maintain a distance of “z”.
Example:
Model SD2A
Toronto is located at approx. 43°
latitude.
1.
Determine the angle of the sun
β
.
This should be chosen so that the
midday sun December 21 falls on the
second row of collectors without
being obstructed by shadows.
Solar angle
β
:
β
=
90°-23.5°-latitude
(23.5° should be accepted as
constant value for northern latitudes)
β =
90°-23.5°-43°=23.5°
2.
Calculating dimension “z”:
h= 1996 mm
α
= 45°
β
= 23.5°
z=
1996
⋅
sin(180°
−
68.5°)
sin 23.5°
z=
1996mm
⋅
sin111.5°
sin 23.5°
z=4657mm / 183”
Mounting Support Frames to Ballast Weights
This installation method can be used for flat roofs or ground mounting. Support frames can be attached to ballast weight,
concrete posts or to substructural frames.
Flat roofs with gravel filling:
Clear gravel from position of concrete slabs.
With plastic roofing:
Place concrete slabs only on protective interlayers, e.g. protective mats.
If several collectors are arranged parallel behind each other, keep a distance of “z” between the front fixing leg of the 1st row
and the front fixing leg of the next row.
Align the collector panel towards the south.
Ballast weights required to: Secure against slipping
*1
Secure against lifting
*2
Installation height above
ground level
<8
<26
8-20
26-66
<8
<26
8-20
26-66
Model SD2A
2m
2
3m
2
2m
2
3m
2
2m
2
3m
2
2m
2
3m
2
Ballast A
lb/2 pieces
kg/2 pieces
225
102 344
156 390
177 586
266 26
57 41
90 51
112
80
176
Ballast B
lb/2 pieces
kg/2 pieces
377
171 564
256 633
287 948
430 161
73
245
111 302
137 454
206
*1
Securing against slipping requires no additional attachment to roof.
*2
Securing against lifting requires additional attachment to roof or structure with wires or cables.
z
h
h
z
=
h
IMPORTANT
5
3
6
8
5
3
8
v
1
.1