L.B. White HW 120 Therma Grow - Manual (Page 8)

1. The air discharge diverter duct provides improved
directional air flow and greater heat throw, beneficial
in heating long houses. Use the duct o
only on indoor
mounted heaters. Do not use the diverter when the
heater is mounted outside the greenhouse. The
diverter duct requires hand forming prior to assembly.
Make 90 degree bends utilizing the performations
provided. Assemble as shown in Fig. 1.
FIG. 1
2. Remove the screws at both sides of the blower outlet.
3. Install flanges as shown in Fig. 2, using the same
screws. Tighten the screws securely.
4. Position the diverter assembly over the flanges. Align
holes in diverter to flange holes.
5. Fasten the diverter to the flanges with the screws
provided. See Fig. 3.
FIG. 2 FIG. 3
-- If a leak is detected, check the components
involved for cleanliness in the thread areas and
proper application of pipe compound before
further tightening.
-- With the main burner in operation, check all
connections, 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 application 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., Inc.
15. Eventually, like all electrical/mechanical devices, the
thermostat can fail. Thermostat failure may result in
either an underheating or overheating condition which
may damage or kill plants. Plants should be protected
by a separate back-up control system that limits high
and low temperatures and also activates appropriate
alarms.
16. Take time to understand how to operate and maintain
the heater by using this Owner’s Manual. Make sure
you know how to shut off the gas supply to the building
and also to the individual heater. Contact your fuel gas
supplier if you have any questions.
17. Any defects found in performing any of the service or
maintenance procedures must be eliminated and
defective parts replaced immediately. The heater
must be retested by properly qualified service
personnel before placing the heater back into use.
18. Do not exceed input rating stamped on the dataplate
of the heater. Do not exceed the burner manifold
pressure stated on the dataplate. Do not use an
orifice size different than specified for the specific
input rating of this heater, fuel type configuration and
altitude.
8
AIR DISCHARGE DIVERTER DUCT
Part Number 26113 (Accessory)
PERFORATIONS
PERFORATIONS
VANES
MUST BE
DIRECTED
DOWNWARD
SCREWS
FROM KIT