Document qkdLnYDo4rQpOg22L0bY3oXwM

Air Conditioning Systems (Accessary Units) Air Controls, Inc. Div. of The Cleveland Heater Co. 1937 West 114th Street, Cleveland, Ohio Manufacturers of AIR-PAK Forced Air Heating and Air Conditioning Units, A. C. Blowers and Airate Air Circulators A. C. BLOWER WITH LOUVRES A high efficiency blower for forced air heating and air conditioning installations. Automatic Louvres prevent damage to furnace due to overheating and are essen tial .for safety on oil, gas and coal fired furnaces. A. C. BLOWER WITHOUT LOUVRES A. C. Blowers are quiet and are designed to deliver proper amount of air whether filters are dirty or clean. They occupy small space but deliver large volume of air. Send for bulletin describing them. THE AIR-PAK The AIR-PAK blower-filter unit for forced air heating and conditioning is encased in an attractive red casing with black top. Casing conies in panels and can be assembled in 10 min. without screws, bolts or slip joints. Filters have high cleaning capacity and low resistance. Blower is quiet and free from vibration. All moving parts are rubber mounted. Self-aligning bearings require oiling once a year. Casing has removable back which permits cool basement air to be drawn through filters for summer use. The AIR-PAK is equipped with the famous Patented Automatic By-pass Louvres which permit unobstructed circu lation by gravity when blower is not running. THE AIRATE As shown above the AIR-PAK cari be obtained without louvres when so desired. Send for Simplified Selector Chart and Performance Data. A large volume cir culator for commer cial or attic ventila tion. Attractive, quiet, powerful and economical. Write for bulletins. No. 29 and S. C. 21. 834 Air Conditioning Systems Delco Appliance Corporation Subsidiary of General Motors Rochester, N. Y. ------------------------------------- ---------------------------------------------- Delco-Heat Conditionair One Compact, Completely Harmonized Un;t--Filtering the air which is circulated in the home is one of the most important functions of air conditioning from the standpoint of health. It removes a large percentage of bacteria, pollen and dust from the air. It reduces the amount of cleaning required in the residence and adds life to fabrics and drapes. Humidification of the air, in the winter, is important to health. It reduces the chances of colds and other winter ailments. It also pre vents deterioration of woodwork. Furni ture, with the proper amount of moisture, does not dry up and become loose at the joints. Summarizing: The Delco-Heat Conditionair filters the air, humidifies, automatically heats and circulates the air. which to carry the cooled air from the house back to the Conditionair. Blown Glass Filter Units The operation is simple. The air passes down from the cold air return duct, and travels through the filters, which remove dust, pollen and bacteria. Air passes to the cascade type humidifier and the heating compartment where-it is auto matically heated.. Air in the home is cleaned approximately eight to ten times per hour. Each filter unit has an area of 384 sq in. and is 2 in. thick. The filtering material consists of an upper layer of fine strands of blown glass and a lower layer of extremely fine strands of blown glass. The upper layer of glass strands is approxi mately twice as thick as the lower layer. Strands are covered with a special adhesive material. Models DA-2, and GA-2 have four filter units. DA-3 has nine filters. Model DA-1 has two filters. Ample Heating Surface to Maintain Temperature Desired--The especially de signed combustion chamber and heat pas sages are unique in construction. They expose a large heating surface to the air as it is circulated over the stream-lined unit. Rapid heating with great economy of fuel results. The Delco-Heat principle of combustion gets full heating effects from low cost domestic fuel oil. Completely Automatic in Operation-- The thermostat, set to the desired tem perature, controls the operation of the Delco-Heat Conditionair. Central Plant Duct System--The DelcoHeat Conditionair requires a central plant duct system. A main distributing duct, from which branch ducts go to individual rooms, is taken from the top of the unit. Return ducts are recommended through Delco-Heat Conditionair (Oil or Gas Burning) Automatic Controls for Conditionair Delco-Heat Conditionair is available oilfired in three models; model for natural, artificial or mixed gas also available. Sturdiness, positive alignment of moving unit assures quiet operation due to freedom from vibration and rattle.- No part of the Delco-Heat mechanism is in the combus tion chamber, thus warping, burning out, and corrosion are eliminated. All controls needed for automatic heating are standard with the Delco-Heat Conditionair. See also Pages 876 and 890 835