The Exhibitor (1960)

The Televance Sentry is designed to keep a constant watch over the refrigeration or air conditioning system and to signal the equipment owner or operator at the very first sign of equipment failure or inefficiency. The manufacturer states that warning in advance of a temperature rise is important in refrigeration systems if costly “chain reaction” mechanical failures are to be eliminated. This is especially true in the case of refrigerant leaks. Some of the conditions which the Tele¬ vance Sentry is said to detect and signal before a temperature rise occurs, include: refrigerant leaks, a highly inefficient com¬ pressor, broken or badly slipping v-belts, a flash gas condition, a restricted strainer or drier, a loose free turning motor pulley or compressor drive pulley, a tripped reset or motor overload device, a defective com¬ pressor motor, a blown fuse, or any con¬ dition that might result in non -operation of the compressor while the compressor motor control is calling for refrigeration. In some cases, such as a slow refrigerant leak or very inefficient compressor, it is claimed that the Televance Sentry will signal that service is required up to months in advance of the actual equipment failure. TELEVANCE SENTRY There are of course a few conditions which the Sentry cannot detect and signal before a temperature rise, says the Televance Corporation: e.g., poor air circulation over the coil or evaporator. Therefore, special low voltage thermal switches are made available which can be located in the re¬ frigerated space and connected to the Sentry so that it will also signal a temperature rise. The thermal switches are designed to pre¬ vent false alarms during defrost periods or periods of a normal temperature rise. Thermal switches and temperature rise indication would not normally be required in cdr conditioning applications, but where maximum protection against a product loss is desired, the addition of thermal switches are recommended. The basic Televance Sentry is said to consist of a sensing probe which is located in the liquid line of the refrigeration system, and a main electronic control unit. A multiple selector switch which permits up to five condensing units to be connected to a single Sentry, and a low voltage remote alarm light is also available. The remote alarm light is designed for location in an office or area where it is certain to be seen. A unique feature of the Televance Sentry is that its operation can be tested simply by pressing a test button. If the alarm light goes on when the test button is pressed, it indicates that all components of the Sentry are functioning properly and that it will signal when an alarm condition exists. Other features include: It can be used by the service man to correctly charge the sys¬ tem with refrigerant; printed circuitry for unifoim production and trouble free per¬ formance; visual or audible alarms; one standard unit operates on 60 cycles, 115 V., 208 V., or 230 V., AC, and can be used on my size equipment and with all refrigerants. Ice Machine Cleaner Almost all automatic ice makers accumulate impurities from the air and from the water supply in the form of dirt, grease, scale and slime. These impurities cause such common troubles as cloudy or white ice, soft ice, offensive odors and bad tasting ice, slow freezing and unsanitary ice. In the case of tube-type ice makers, scale build-up can result in blocking of the tube and expensive damage to the machine. CSCO Ice Machine Cleaner, a product of the Chemical Solvent Company, will safely clean the Ice Makers and eliminate these troubles. The cleaner is safe to use on the machines and is safe to handle. It is also non-toxic and from a health standpoint, is safe when used in accordance with the in¬ structions printed on the package. In addition for its use in cleaning Ice Makers, CSCO Ice Machine Cleaner Powder may be used for deliming or removing the scale from dishwashers. Printed instructions are available. CSCO is packaged in conven¬ ient 8-ounce polyethylene bags. Tornado Pac-Vac Newest member of the Tornado cleaning family is the Pac-Vac cleaner that straps to the operator’s back. The motor unit, which is interchangeable with their tank cleaner, moimts on a “Skrap-Trap” which keeps heavy objects from reaching the air impeller. The tubular frame fits comfortably on the back and can be adjusted with the wide straps. The Pac-Vac, when used as a vac, uses a Alter bag over the air outlet. For air sweep¬ ing the regular five foot hose is moved to the air outlet and an air sweeping wand is used. TORNADO PAC-VAC Convenience and mobility are its big fea¬ tures. The Pac-Vac can be used for regular floor cleaning using up to a twenty-two inch tool for all types of overhead work with ex¬ tension handles. As an air sweeper it moves papers and other debris from under fixed seating. WOOSTER ALUMINUM TREADS A quick, easy method of restoring worn, slippery stairs using a recently developed aluminum safety tread has been annoimced by the manufacturer, Wooster Products, Inc. Plastic Mix Leveling Compound is troweled over the worn areas of the steps to return the step to the level surface. The step is then capped with the new heavy-duty Super Stairmaster safety tread. Super Stairmaster treads are nine inches wide with beveled back and fit all steps up to 13-inches wide. The base of the tread is heavy-duty aluminum with ribs of hard abrasive, providing an anti-slip walking sur¬ face. Lengths to 12 -inches are available. Proper fasteners are furnished for installing on various types of stairs. This simple method of restoring stairs eliminates closing off stairs for extended pe¬ riods of time while repairs are being made. FOR DRIVE-IN THEATRES Stonco Bell Holder The new heavy-duty Bell Holder, intro¬ duced by Stonoco Electric Products Company, is vaportight clear through for use in all locations exposed to moisture, rain, sleet, ice, corrosive fumes, non-explosive vapors and gases or non-combustionable dusts. Fully protected and sealed vaportight with a heavy tempered-glass front lens and hightemperature live silicone -rubber gasket, the STONCO BELL HOLDER new all-weather Bell Holder is especially ef¬ fective for the wide-range of failure-prone in¬ stallations where xmusually severe conditions are damaging to ordinary floodlight. Features include an advanced “shield” de¬ sign that eliminates back and side halo-light, pre-aiming quadrant that permits on-theground focusing, and a variety of job -tailored accessory fittings for pole-top, mid-pole, wall or cross-arm mounting. Five Anti-Rust Products Meeting a demand for simplified procedures in painting metal to stop rusting as well as to beautify, the Du Pont Finishes Division has developed five new products suited for any metal finishing job. April 6, 1960 MOTION PICTURE EXHIBITOR-1960 THEATRE CATALOG Edition 83