Luba
MD
GL Collector – Technical manual
Version 1.0-EN-January 2012
© Enerconcept Technologies inc.
11
3.2 Handling
Only two (2) workers are required to handle and install the collectors and material on the
installation site. However, all precautions must be taken to avoid damaging the collectors during
handling.
3.3 Start and end of rows
As a rule, we consider the connection to the ventilation system to be the start of a Luba
GL row.
The last collector is placed at the other end of the row, meaning the furthest from the ventilation
system.The airflow then starts from the last collector and ends at the first.
3.4 Length of collector rows
The length of the rows of collectors varies according to the physical constraints of the building
(space on the roof). Up to eight (8) Luba
GL collectors may be installed in one row of collectors.
3.5 Distance between rows
A minimal distance between the collector rows must be respected in order to allow full access to
sunlight at all times and to avoid shade on the collectors due to the preceeding rows. The most
critical period is right before the winter solstice, between the 21
st
of November and the 21
st
of
January, which is when the sun stays the lowest above the horizon. On flat, horizontal surfaced
roofs at Montreal and southern Quebec’s latitude, the minimal recommended distance is of 7’-10"
(2,39 m), as seen on the table below.
Table 6: Distance between rows according to location
City
Angle of the sun above the
horizon on dec. 21
st
Recommended distance
between each row
Montreal
20,98 degrees
8’-5”
2,56 m
Toronto
22,8 degrees
7’-10”
2,38 m
Edmonton
12,93 degrees
13’-4”
4,06 m
New York
23,35 degrees
7’-8”
2,33 m
Denver
26,76 degrees
6’-9"
2,06 m
Nantes
19,28 degrees
9’-1"
2,77 m
Munich
18,37 degrees
9’-6"
2,90 m
Copenhagen
10,78 degrees
15’-10"
4,83 m
Beijing
26,59 degrees
6’-10"
2,07 m
Figure 12 : diagram of a simple row
