2. With chalk line, tape, laser and/or permanent marker, mark locations of rafters that will be used for
mounting C-channels.
3. Roof-penetration must be between collectors (or immediately next to collector on connection side of
single-collector installation). Roof-penetration will serve as landmark to determine position of
collectors and of C-channel (Fig. 5.1.2).
4. Collector dimensions are 46¼” wide x 96¼” tall (1175 mm x 2445 mm). A minimum of 10’ (3000
mm) of roof slope is needed if leaf-guard is to be installed (leaf-guard is optional with 1 and 2-
collector appliances, included with 3- and 4-collector appliances). Only 9’ (2740 mm) of roof slope
is needed for installations without leaf-guards. A minimum of 24” (610 mm) is required above
collector if leaf-guard is to be installed. Only 12” (305 mm) is needed above collector for
installations without leaf-guards, unless otherwise stated by local regulations (Fig. 5.1.2).
5. With this information and referring to Fig. 5.1.2, mark position of collector(s) and of C-channel.
Note that when collectors are secured, the distance between them will be approximately 5.75”
(146 mm).
6. Collector mounting points are 48” (1220 mm) apart. C-channels must be mounted
horizontally (use level), 48” (1220 mm) apart, center to center (Fig.5.1.2).
N O T E : B e s u r e t o t a k e p o s i t i o n o f t h e r m i s t o r w i r e s i n t o c o n s i d e r a t i o n
when locating line-set roof-penetration.
T I P : I f i n s t a l l i n g a t h r e e o r f o u r - c o l l e c t o r a p p l i a n c e , d o n o t b u t t C -
channels (52” (1321 mm) and 102” (2591 mm) for three collectors, 102”(2591 mm) and 102” (2591
mm) for four collectors) up to each other. Leave a gap of at least 1” (25.4 mm) between C-channels to
ensure center-flashing can be installed.
Fig. 5.1.2 – Collector mounting details.
Solar Collector
Installation Manual
12
Module 4
Summary of Contents for EWRA1
Page 37: ......
