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LDAP-IOM (01-22) 207733-A
Table 2. Heater Throw Distances
Mounting
Height
Standard Louvers
30-Degree Nozzle
60-Degree Nozzle
Dimension
*
X
Y
Z
X
Y
Z
X
Y
Z
Feet (Meters)
20 (6 .1)
5 (1 .5)
55 (16 .8)
134 (40 .8)
40 (12 .2)
90 (27 .4)
146 (44 .5)
70 (21 .3)
125 (38 .1)
158 (48 .2)
30 (9 .1)
8 (2 .4)
53 (16 .2)
121 (36 .9)
44 (13 .4)
86 (26 .2)
133 (40 .5)
76 (23 .2)
119 (36 .3)
145 (44 .2)
40 (12 .2)
12 (3 .7)
49 (14 .9)
109 (33 .2)
47 (14 .3)
81 (24 .7)
120 (36 .6)
—
50 (15 .2)
17 (5 .2)
45 (13 .7)
96 (29 .3)
—
*
See
.
Mounting Height Requirements
⚠ WARNING ⚠
If touched, the vent pipe and internal heater surfaces that are accessible from outside the heater
will cause burns. Suspend the heater a minimum of 15 feet (4.6 meters) above the floor.
•
For best results, the heater should be mounted with certain rules in mind . In general, a unit should be located 15
to 40 feet (4 .6 to 12 .2 meters) above the floor . Where two or more units 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 consideration when locating the unit heater
so that a minimum quantity of airflow will be deflected by such obstacles .
Hazards of Chlorine
The presence of chlorine vapors in the combustion air of gas-fired heating equipment presents a potential corrosion
hazard . Chlorine is usually found in the form of freon or degreaser vapors . When chlorine is exposed to flame, it 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 these vapors from the combustion process . This may be done by wise location of
the heater with regard to exhausters 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 exhaust systems .
