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1947-48 Theatre Catalog, 6th Edition, Page 417 (403)

1947-48 Theatre Catalog, 6th Edition
1947-48 Theatre Catalog
1947-48 Theatre Catalog, 6th Edition, Page 417
Page 417

1947-48 Theatre Catalog, 6th Edition, Page 417

ments. usually amount to from 8 to 10 percent of that required to accomplish the same result using mechanical refrigeration.

The Kathabar System consists of the Iiathene solution made up approximately of 44 percent lithium chloride and circulated over an assembly of plates or cooling coil to bring the solution in direct contact with the air being treated. It is usually cooled by water from a cooling tower or by surface water. A small percentage of the Kathene solution (usually 10 to 15 percent) is automatically by-passed over an evaporator, where the solution is automatically heated to remove excess moisture and restore it to its original strength. This cycle is continuous, automatic, and very easily controlled.


The Kathabar System is recommended for comfort installations because it reliably controls the humidity independ ent of temperature and, therefore, simplifies the entire air-conditioning problem by making it possible to control the important humidity-temperature ratio.

Because of its great capacity to dehumidify, it can usually dehumidify the make-up air low enough to compensate for the water vapor added by human occupancy and that which infiltrates from overly humid, outside air. Because of the remarkable ease with which this relationship between temperature and humidity can be maintained by the Kathabar System, it has become associated with the most outstanding airconditioning installations in the country.

Next to its ability to dehumidify the air, Kathabar has the important function of odor removal-such as body and smok< ing odors. These are absorbed by the Kathene and automatically discarded in its regeneration.

This function results in a substantial saving because it removes the necessity for obtaining special equipment for this purpose or in such places as night clubs, theatres, restaurants, and auditoriums, of bringing in an excessively large volume of ventilating air from the outside, all of which has to be conditioned at extra cost.

Where the moisture in the air is removed by condensing on coils, the usual result is an accumulation of wet, unsanitary, and unhealthy muck, which builds up around the cooling coils. Such a condition contributes to unpleasant odors and a stagnant feeling in the conditioned space. Some engineers recommend large (1uantities of make-up air in an effort to overcome this condition.

The Kathabar System, by chemically absorbing the moisture from the air, keeps the cooling coils dry and clean and entirely free from odors. Many engineers feel that this characteristic of the Kathabar System is one of greatest importance.

The fact that the men working in salt mines are not generally afflicted with common colds is said to be due largely to the antiseptic character of the surrounding salt contacting the air. Air passing through Kathene in the contactor unit of the Kathabar System tends to become sterilized for the same reason as the air in the salt mines. The thorough washing with Kathene also 'atches the fine dust particles which are not caught by the air filters.


THE AIR WASHER UNIT is used in central installations, where the regeneralor is separate from the washer unit. Several of these units can be nested together to handle large volumes of air.

THE PACKAGE UNIT is self-contained, ready ior connection and operation. Steam or gas, water, and electrical connections are provided externally for quick. easy hook-up by the installer.
1947-48 Theatre Catalog, 6th Edition, Page 417