Installation, Heater element, Table 1 table 2 – SPX Cooling Technologies 92-1322C User Manual
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/ Installation /
For detailed information concerning installation, refer to the heater
installation drawing provided with the cooling tower.
Heater Element
Install the heater element(s) in the depressed area of the cold water basin
near the outlet. Provide clearance of
7
⁄
8
" or more above the floor.
A single centrally located heater can protect up to 300 square feet of basin
surface area from ice damage. To protect larger surface areas, position
several heaters so they protect equal areas. For multicell towers, no more
than two cells may be protected by a single heater package. For three or
more cells additional heater packages are necessary.
The heater should never operate out of the water. It would become
extremely hot (1500°F) and destroy the heater element and/or ig-
nite nearby combustible materials. As a precaution and to prevent
fires when the clearance between any part of a heater element and
combustible materials is less than 10", install a sheet metal shield
to reflect and dissipate the heat. The shield must not contact the
heater element and should extend beyond the heater element in all
directions as shown in Table 1.
e
c
n
a
r
a
e
l
C
r
e
t
a
e
H
s
e
h
c
n
i
1
2
4
6
8
0
1
n
o
i
s
n
e
t
x
E
d
l
e
i
h
S
s
e
h
c
n
i
0
1
9
7
4
2
0
Note
Caution
Heater Supports
Install metal supports for the heater element where necessary to keep
the unsupported length under 30". The number of supports required is
as shown in
Table 2.
r
e
t
a
e
H
s
tt
a
w
o
li
K
9
-
1
8
1
-
2
1
s
t
r
o
p
p
u
S
f
o
r
e
b
m
u
N
e
n
o
N
1
Table 1
Table 2