Determining The Collector Row Distance "Z - Viessmann Vitosol 100-FM SV1F Installation, Operating And Service Instructions

Vitosol 100-FM/200-FM Installation, Operating and Service

Determining the Collector Row Distance "z"

z= h sin (180°- (α+ β))

sin β
Legend:
z=Collector row distance
h=Collector height
100/200-FM model SV = 93c in. (2380 mm)
100/200-FM model SH = 41c in. (1056 mm)
=Collector angle of inclination
100/200-FM model SV = 25° - 60°
100/200-FM model SH = 25° - 80°
=Solar angle
=(90° - 23.5°) - Latitude
or Freestanding Installation
IMPORTANT
When installing several collectors in series, maintain a
distance of "z".
Example:
Model SV
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 :
= (90° - 23.5°) - latitude
(23.5° should be accepted as constant value for
northern latitudes)
=(90° - 23.5°) - 43°=23.5°
2. Calculating dimension "z":
h= 2380 mm
= 45°
= 23.5°
z= 2380 mm  sin (180°- (45°+ 23.5°))
sin 23.5°
z= 2380 mm  sin 111.5°
sin 23.5°
z= 218.6 in. (5553 mm)
Refer to Vitosol System Design
Guide for more information on
calculating "z".
Note: Contact Viessmann Solar Tech Support for
assistance with calculating distance "z".
Installation on Flat Roofs
17