Therma Grow™ Greenhouse Heaters
Owner’s Manual • Therma Grow™
9
INSTALLATION INSTRUCTIONS
Installation Instructions
General
use and is hung level. Observe and obey all minimum
safe distances of the heater to the nearest combustible
materials. Minimum safe distances are given on the
heater nameplate and on page 4 of this manual.
3. The heater may be used either indoors or outdoors. For
heaters intended for outdoor installation, the heater is to
be installed at least 18 inches above the ground or to a
height that would prevent snow blockage of heater’s air
inlet. Refer to instructions provided in the optional L.B.
White outdoor mounting and ducting kit - part number
500-23579.
4. The heater must have the proper gas regulator installed
for the application. A regulator must be connected to
the gas supply so that gas pressure at the inlet to the
gas valve is regulated within the range specified on the
dataplate at all times. Contact your gas supplier, or the
L.B. White Co., LLC. if you have any questions.
5. The heater’s gas regulator (with pressure relief valve)
should be installed outside of building. Any regulators
inside the buildings must be properly vented to the
outside. Local, state and national codes always apply
to regulator installation. Natural gas regulators with vent
limiting device may be mounted indoors without venting
to outdoors.
6. All gas pressure regulators must be installed in strict
accordance with the manufacturer’s safety instructions.
These instructions accompany each regulator.
7. Insure that all accessories that ship within the heater
have been removed from inside of heater and installed.
This pertains to air diver ters, hose, regulators, etc.
8. Make certain that a sediment trap is installed at the
gas valve inlet to prevent foreign materials (pipe
compound, pipe chips and scale) from entering the gas
valve. Debris blown into the gas valve may cause that
valve to malfunction resulting in a serious gas leak that
could result in a possible fire or explosion causing loss
of products, building or even life. A properly installed
sediment trap will keep foreign materials from entering
the gas valve and protect the safe functioning of that
important safety component.
9. Any heater connected to a piping system must have an
accessible, approved manual shut off valve installed
within six feet (6 ft.) of the heater it serves.
10. Check all connections for gas leaks using approved
gas leak detectors. Gas leak testing is performed as
follows:
WARNING
Fire and Explosion Hazard
n
Do not use open flame (matches, torches, candles,
etc.) in checking for gas leaks.
n
Use only approved leak detectors.
n
Failure to follow this warning can lead to fires or
explosions.
n
Fires or explosions can lead to property damage,
personal injury or loss of life.
-- Check all pipe connections, hose connections, fittings
and adapters upstream of the gas control with ap-
proved gas leak detectors.
-- In the event a gas leak is detected, check the compo-
nents involved for cleanliness and proper application of
pipe compound before further tightening.
-- Fur thermore tighten the gas connections as necessary
to stop the leak.
-- After all connections are checked and any leaks are
stopped, turn on the main burner.
-- Stand clear while the main burner ignites to prevent
injury caused from hidden leaks that could cause
flashback.
-- With the main burner in operation, check all connec-
tions, hose connections, fittings and joints as well as
the gas control valve inlet and outlet connections with
approved gas leak detectors.
-- If a leak is detected, check the components involved
for cleanliness in the thread areas and proper applica-
tion of pipe compound before further tightening.
-- Tighten the gas connection as necessary to stop the
leak.
-- If necessary, replace the parts or components involved
if the leak cannot be stopped.
-- Ensure all gas leaks have been identified and repaired
before proceeding.
11. A qualified service agency must check for proper
operating gas pressure upon installation of the heater.
12. Light according to instructions on heater or within
owner’s manual.
13. It is extremely important to use the proper size and
type of gas supply line to assure proper functioning of
the heater. Contact your fuel gas supplier for proper
line sizing and installation.
14. This heater can be configured for use with either
L.P. gas vapor withdrawal or natural gas. Consult
the dataplate for the gas configuration of the specific
heater. Do not use the heater in an L.P. gas liquid
withdrawal system or application. If you are in doubt,
contact the L.B. White Co., LLC.