3.2 Available Roof Space
3.3 Collector Racks
3.4 Line-Set
3.5 Location of Energy Station and Solar Storage Tank
4.1 Line-set Description
Appliance may consist of one to four collectors depending on required volume of hot water. Check
appliance specification sheet for sizing guidelines. Each collector is 4’ x 8’ (1.219 m x 2.438 m) and
must be mounted in “portrait” orientation. Installation area must be clear of roof vents, fans, satellite
dishes, etc. Refer to section
5.1 Locating rafters and positioning C-channel
for more details.
A rack may be used on the ground or to increase collector-angle on low-angled roofs. Consideration
must be given to wind and snow loads, and to aesthetics.
EnerWorks Solar Collectors are not as sensitive to orientation as photovoltaic panels (PV). Due to
size and weight of solar thermal collectors, tracking systems are not advisable.
Racking may require approval or certification by a building engineer and/or local authorities. It is
the responsibility of the installer to ensure appropriate design and safety criteria are met.
Line-set carries heat-transfer fluid from collectors to Energy Station and back again. Line-set must be
flexible, refrigeration-grade 3/8” soft-copper tube. A proper and dedicated bending tool must be used
for tight bends. Line should be as smooth as possible with no unnecessary fittings or bends. Site
evaluation should include examining location and difficulty of roof and wall penetrations. Appropriate
techniques and materials for sealing penetrations are necessary.
Energy Station and solar storage tank will be located in mechanical or utility room, close to existing
water-heater. Stairway and doorway clearance must be examined. Additional floor space is
required for solar storage tank and Energy Station. Consideration must be given to location and
complexity of wall and ceiling penetrations, and to plumbing of appliance to existing water-heater
and to water distribution network.
Energy Station requires AC power. Solar storage tank and Energy Station must be installed in
proximity to AC outlet. Surge protection is recommended.
4 – Line-Set Installation
Line-set connects Energy Station to solar collectors. Line-set consists of
two 3/8” refrigeration-grade, flexible soft-copper tubes. Tubes are
individually insulated with refrigeration insulation (3/8” ID - 3/8”-wall).
Bundle with the line-set an 18-gauge, two-conductor control wire that
connects the Energy Station Controller to the solar collector
temperature sensor (Fig. 4.1.1).
Solar Collector
Installation Manual
Fig. 4.1.1 – Line-set
8
Module 4
Summary of Contents for EWRA1
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