A-A-50497A
SIZES
Size 1 One warming unit. Size 2 Two warming units. Size 3 Three warming units. Size 4 Four warming units. Size 5 Five warming units.
3. SALIENT CHARACTERISTICS.
3.1 Description. The automatic, electric coffee maker shall consist of a tank containing an immersion electric heating element (type I) thermostatically-controlled to maintain water temperature, or an enclosed counter-top stand with an electric heat exchanger (type II). The coffee maker shall include a single spray head, brewing cartridge, and electric warming unit for the decanter when it is placed under the brewing cartridge. The spray head shall distribute water uniformly over the ground coffee in the brewing cartridge. The automatic volume regulator shall regulate the volume of hot water flowing through the spray head. Type I and II, class 1 coffee makers shall be provided with automatic flow control for operation on line water pressure between 20 to 120 pounds per square inch (138 to 827 kilopascal). The automatic flow control regulator shall have a means for emergency shut-off of water in the event of overflow or other malfunction. The warming unit shall consist of recessed heating element(s) or other guides for positioning the decanter. The warming unit(s) shall maintain a full decanter of liquid coffee at a temperature of 185 to 190 degrees Fahrenheit ( F) (85 to 88 degrees Celsius ( C)). Each warming unit shall be provided with an on-off switch and individual colored pilot light to indicate when the switch is energized. The class 1 shall be provided with a self-closing, nondrip, drawoff faucet for dispensing hot water. The coffee makers shall be suitable for operation on a nominal
120-volt, 60 Hertz, power source using a three-conductor flexible UL-approved cable with a plug
in accordance with NEMA 5-15P requirements. When specified (see 7.2), guardrails shall be furnished to prevent decanter sliding off warming unit. When specified (see 7.2), stainless steel decanters shall be furnished. When specified (see 7.2), the coffee maker shall have provisions for mounting to counter surface.
3.2 Standard commercial product. The automatic, electric coffee maker shall, as a minimum, be in accordance with the requirements of this CID and shall be the manufacturer's standard commercial product. Additional or better features which are not specifically prohibited by this CID, but which are a part of the manufacturer's standard commercial product, shall be included in the coffee maker being furnished. A standard commercial product is a product which has been sold or is being currently offered for sale on the commercial market through advertisements or manufacturer's catalogs or brochures, and represents the latest production model.
3.3 Safety. Unvented water tanks shall be equipped with a high temperature-limit heater safety device. The design of the coffee maker shall be such that no fire or electrical shock hazard is present when the coffee maker is connected to a power source.
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