Thomas & Betts LDAP 1200 - Manual (Page 8)

Form RZ-NA-I-LDAP, P/N 207733 (Rev 2), Page 8
11. Hanging or
Mounting
the Heater
and
Installing
Louvers Before installing the heater, check the supporting
structure to be used to verify that it has sufficient load-
carrying capacity to support the weight.
Weight (lbs/kg)
WARNINGS: Check the supporting structure to be used to verify
that it has sufficient load carrying capacity to support the weight of
the heater. Suspend the heater only from the threaded nut retainers
or with a manufacturer provided kit. Do NOT suspend from the
heater cabinet.
Suspending the Heater
Size 400 800 1200
lbs 375 805 1195
kg 170 365 542
See FIGURE 1A or 1B for the appropriate hanging locations, and install the ½”-13
spring nuts in the strut that is attached to the top of the unit. Comply with the require-
ments in FIGURE 4A when using threaded rod. If ordered with swivel connectors
for 1” pipe, Option CK10, attach the swivels to the spring nuts according to illustra-
tion in FIGURE 4B and suspend with 1” pipe.
Locate the hardware kit shipped with the heater. The kit contains spring nuts, hex
nuts, “U”-shape fittings, and lock washers for suspending the heater. It also includes
louvers and the compression springs needed to install them.
When the heater is lifted for suspension, support the bottom of the heater with the
crate bottom. If the bottom is not supported, damage could occur. Before hanging or
mounting, verify that any screws used for holding shipping brackets were re-installed
in the cabinet.
Location
Recommendations
NOTE: Venting
requirements may affect
location. Consult
requirements in Paragraph 24
before making final
determination.
Hazards of Chlorine
For best results, the heater should be placed with certain rules in mind. In general, a
heater should be located from 15-40 feet (4.6-12.2 M) above the floor. If two or more
heaters are installed in the same room, a general scheme of air circulation should be
maintained for best results.
Suspended heaters are most effective when located as close to the working zone as
possible, and this fact should be kept in mind when determining the mounting heights
to be used. However, care should be exercised to avoid directing the discharged air
directly on the room occupants.
Partitions, columns, counters, or other obstructions should be taken into consider-
ation when locating the heater so that a minimum quantity of airflow will be deflected
by such obstacles.
The presence of chlorine vapors in the combustion air of gas-fired heating equipment
presents a potential corrosion hazard. Chlorine found usually in the form of freon or
degreaser vapors, when exposed to flame will precipitate from the compound, and go
into solution with any condensation that is present in the heat exchanger or associated
parts. The result is hydrochloric acid which readily attacks all metals including 300
grade stainless steel. Care should be taken to separate those vapors from the combus-
tion process. This may be done by wise location of the heater with regard to exhaust-
ers or prevailing wind directions. Chlorine is heavier than air. Keep these facts in
mind when determining installation location of the heater in relation to building ex-
haust systems.
10. Heater
Location
(cont’d)
Sound Data
db Pa µbar db Pa µbar db Pa µbar db Pa µbar db Pa µbar
400 69 0.058 0.580 65 0.037 0.371 62 0.026 0.258 60 0.019 0.189 57 0.015 0.145
800 72 0.080 0.800 68 0.051 0.512 65 0.036 0.356 62 0.026 0.261 60 0.020 0.200
1200 74 0.100 1.000 70 0.064 0.640 67 0.044 0.444 64 0.033 0.327 62 0.025 0.250
µbar = microbar Pa = Pascal
Sound Chart - Model LDAP
Model
LDAP
Size
DISTANCE
20 ft (6.1M) 25 ft (7.6M) 30 ft (9.1M) 35 ft (10.7M) 40 ft (12.2M)