4
Normally, collectors are installed on roofs, as close as possible to the tank, to minimize heat loss
through the pipe. The pipes between the tank and the collectors MUST be insulated with at least
½” thick insulation, for the same reason.
The solar collectors must be located in a structurally sound area of the roof that will be exposed
to the sun for the majority of the day, all year round.
The recommended angle of the collectors is the angle of the installation location’s LATITUDE.
This angle is designed to maximize solar absorption during winter months when the sun is low.
A variation of +/- 15 degrees is acceptable. The orientation of the collectors must be due south
55 degrees. Flush mounts on available roof slopes are recommended to allow convenience and
cost effectiveness, since these variations from the exact angle and orientation will affect the
system’s performance only by about 5%.
C
OLLECTOR
M
OUNTING
There are two basic roof-mounting methods:
F
LUSH
M
OUNT
I
NSTALLATION
- Parallel to the roof line, as illustrated below.
Figure #1, Flush mounted collector
Flush Mount Installations are recommended when the roof’s slope conforms to the orientation
requirements as stated previously. This is the easiest and most aesthetically pleasing installation
method. After the collector(s) are installed, it should resemble skylight. The flush mount
consists of four (4) U-channels (SL-UC) and four (4) Gripper Sets (SL-GS), two set each for the
top and bottom.
1.
Start from the bottom. The bottom side of the Corona collector is marked by two weep
holes placed about 20” apart on the short anodized aluminum edge of the collector.
When elevating the collector to the roof, make sure that the “weep holes” are facing
down. It is recommended to install the collectors vertically (length up the roof’s slope),
but the collectors may be installed horizontally as well.
2.
Once the collector’s location is determined, anchor two (2) U channels to the roof using
two (2) stainless steel 2” x 5/8” lag bolts for each U-channel. The U-channels should
