NOTES
3
S O L A R H O T W A T E R
1. PREPARATIONS
1.0. General Notes
1.0.0. Safety Guidelines
Carefully review all instructions in this manual for installation and use. Do not modify Gobi
Collectors or Helio-Pak under any circumstances; use only as designed. This manual and
its content are integral parts of both the Helio-Pak and Gobi Solar Collector warranties.
Noncompliance with these guidelines will void all warranties.
Follow all local building codes and regulations, as well as these industry accepted
guidelines and standards:
IAPMO
USEC, UBC, UPC
ASHRAE
Solar Energy Equipment
NFPA 70
National Electric Code
ASCE 7-05
Minimum Design Loads for Buildings and Other Structures
Select an installation location that is easily accessible for maintenance and servicing.
1.0.1. Collector Storage and Handling
Keep collectors covered when storing.
Avoid lifting collectors by the headers. Take care not to scratch the tempered solar glass;
follow the glass breakage guidelines at the end of this manual in case of breakage.
Gobi collectors nest and lock into each other for horizontal transportation. Do not
transport Gobi upside down or standing on a side.
1.0.2. Collector Installation
Make a site visit prior to installation to verify adequate installation conditions:
Collector sun exposure, especially during crucial solar hours of 10AM
•
– 2PM.
Take into consideration deciduous tree shading, structures, chimneys, etc.
Use a minimum tilt of 10
•
° in mild areas and 30° in areas with snow.
Orient collectors within 20° of true South (in North latitudes); use internet maps
•
rather than compass readings for verification.
Ideal collector tilt for hot water production is equal to site latitude. For space
•
heating combination systems, use tilt equal to latitude plus 15°. Heliodyne
recommends a standard of 35° for hot water and 45° for space heating,
regardless of location. Use racks only when necessary, as variation up to 15°
can have only small effects on performance.
Avoid
banking
•
of snow and ice below or on the collectors.
Never mount Gobi collectors horizontally in a drainback system.
•
•
Heliodyne recommends 6-12” of flex tubing before any rigid copper lines to allow
for thermal expansion in the copper tubing.
1.0.3. Minimum Heat Storage
A minimum of 1.5 – 2.0 gallons of liquid heat storage per square foot of Gobi collector
(e.g., 60 – 80 gallons per Gobi 410) is recommended.
Minimize stagnation (no load, no flow) conditions on peak output days by using
appropriate system sizing and maximizing year round usage. For design assistance,
contact Heliodyne.
Ensure the backup heating capacity is properly sized to produce hot water for installation
site on days of little or no solar energy production. Use only ASHRAE 90.2 compliant
storage tanks and heaters with R-16 or higher.
1.0.4. Equipment for Installation
For a complete and functional SHW system, ensure the following equipment is ready for
installation at the job site:
Gobi Solar Collectors
•
Rack or Flush mount hardware kit
•
Appropriate roof penetration hardware and sealant
•
Copper tubing, type M or L for collector / heat transfer appliance connections,
•
adapters, elbows and fittings.
96/4 Tin/Silver solder
•
Non-rubber based insulation (Armaflex); 1/2” wall / R2.6l minimum
•
UV resistant covering or coating for outdoor exposed insulation
•
Helio-Pak heat transfer appliance (HPAK)
•
Isolation valves, tempering valve, air vent
•
Storage tank with adequate volume for collectors installed
•
Connections for storage tank (flexible or otherwise)
•
Dyn-O-Flo HD high temperature propylene glycol or equal
•
Pipe hangers or supports installed per code requirement installed without
•
compromising any insulation.
1.0.5. Tools
Heliodyne collectors and heat transfer appliances do not require any special tools. Never
use plumbing wrenches on hex connections. Always tighten the bolts rather than the
nuts. Aside from using the standard plumbing tools (torch, pipe cutter, etc.) the following
tools and sizes are used in Heliodyne equipment:
9/16” wrench / socket for 3/8”- 16 bolts and nuts
•
3/4” wrench / socket for 1/2” - 13 hanger bolts and nuts
•
Adjustable hex wrench for 1.25” thru 1.875” hex sizes
•
Phillips screw driver (for tank sensor installation)
•
1/4” drill bit for 3/8” lag screws
•
3/8” drill bit for 1/2” lag screws
•
1.0.6. Safety Equipment
Working on roof tops and other elevated collector installation sites as well as using
flames can be dangerous; use extreme caution and follow all local codes and good safety
practices when installing. Heliodyne is not responsible for job safety nor any accidents
that may occur, and always recommends:
Safety glasses
•
Roof harness
•
Scaffolding rather than ladders
•
Solder in well ventilated areas
•
1.0.7. Heliodyne OG-300 Certified Systems and SRCC Numbers
Installers: check box next to OG-300 system installed (if applicable)
HPAK 016 1 408 G 65 ACS
300-1992-010A
HPAK 016 1 410 G 80 ACS
300-1992-010B
HPAK 016 2 408 G 120 ACS 300-1992-010C
HPAK 016 1 406 G 50 ACS
300-1992-010J
HPAK 016 1 406 G 80 ACS
300-1992-010K
HPAK 016 2 406 G 80 ACS
300-1992-010L
HPAK 016 2 406 G 120 ACS 300-1992-010M
HPAK 016 1 408 G 80 ACS
300-1992-010N
HPAK 016 2 410 G 120 ACS 300-1992-010O
HPAK 016 1 410 G 65 ACD
300-1992-013A
HPAK 016 2 408 G 80 ACD
300-1992-013B
HPAK 016 2 408 G 120 ACD 300-1992-013C
HPAK 016 2 410 G 120 ACD 300-1992-013D
HPAK 016 1 408 G 65 ACD
300-1992-013F
HPAK 016 1 406 G 80 ACD
300-1992-013G
HPAK 016 2 406 G 80 ACD
300-1992-013H
HPAK 016 1 408 G 80 ACD
300-1992-013I
HPAK 016 1 410 G 80 ACD
300-1992-013J
HPAK 016 1 410 G 80 ACD Z 300-1998-001A
HPAK 016 2 408 G 80 ACD Z 300-1998-001B
HPAK 016 2 408 G 120 ACD Z 300-1998-001C
HPAK 016 2 410 G 120 ACD Z 300-1998-001D
HPAK 016 1 408 G 65 ACD Z 300-1998-001F
HPAK 016 1 406 G 80 ACD Z 300-1998-001G
HPAK 016 2 406 G 80 ACD Z 300-1998-001H
HPAK 016 1 408 G 80 ACD Z 300-1998-001I
The solar energy system described in this Manual, when properly installed
and maintained, meets or exceeds the minimum standards established by
the SRCC. This certification does not imply endorsement or warranty of this
product by SRCC.
Contact Heliodyne for service in your area: 1.888.878.8750
