Note
Caution
Table 1
Table 2
/ 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.
Heater Clearance | inches | 1 | 2 | 4 | 6 | 8 | 10 |
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Shield Extension | inches | 10 | 9 | 7 | 4 | 2 | 0 |
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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.
Heater Kilowatts | 1 - 9 | |
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Number of Supports | None | 1 |
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