NAVY A-A-59191-1998 URN COFFEE SINGLE AND TWIN AUTOMATIC ELECTRIC (NAVAL SHIPBOARD)《海军船电子自动单双咖啡壶》.pdf
《NAVY A-A-59191-1998 URN COFFEE SINGLE AND TWIN AUTOMATIC ELECTRIC (NAVAL SHIPBOARD)《海军船电子自动单双咖啡壶》.pdf》由会员分享,可在线阅读,更多相关《NAVY A-A-59191-1998 URN COFFEE SINGLE AND TWIN AUTOMATIC ELECTRIC (NAVAL SHIPBOARD)《海军船电子自动单双咖啡壶》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、A-A-59393 9038054 000067L 333 INCH-POUND A-A- 591 91 12 May 1998 COMMERCIAL ITEM DESCRIPTION URN, COFFEE, SINGLE AND TWIN, AUTOMATIC, ELECTRIC (NAVAL SHIPBOARD) The General Services Administration has authorized the use of this comercial item description for all federal agencies. 1. SCOPE This comme
2、rcial item description (CID) covers counter-mounted automatic coffee urns intended for brewing coffee and dispensing coffee and hot water for Naval shipboard use. 2. CLASSIFICATION Type 1: Single compartment Type 2: Twin compartment Size 1: 3 gallons each compartment Size 2: 6 gallons each compartme
3、nt 3. SALIENT CHARACTERISTICS 3.1 Design and construction. The urn shall have either one or two coffee compartments and one water heating compartment. The urn shall automatically brew coffee and operate via push-button control. The following functions shall be performed automatically: Heating the wa
4、ter Spraying a measured amount of hot water over the ground coffee 0 Refilling the water compartment Maintaining the brewed coffee temperature Delivering brewed coffee and hot water to the faucets 0 Agitating the coffee at the end of the brew cycle Beneficial comments, recommendations, additions, de
5、letions, clarifications, etc., and any other data which may improve this document should be sent to: Commander, Naval Sea Systems Command, 2531 Jefferson-Davis Highway, Arlington, VA 22242-5160. AMSC NJA FSC 7310 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Provi
6、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59191 W 9018054 0000b72 25T A-A- 5 9 19 1 The water compartment shall be nonpressurized and shall have a capacity of not less than 8 gallons for size 1 urns, and not less than 12 gallons for size 2 urns.
7、 The urn shall be provided with a special brewing device or adapter to automatically brew one-half of the compartment capacity. The spray-over temperature of the water shall be between 195F and 210F. The spray head shall evenly distribute water over the ground coffee without overspraying or pocketin
8、g. The spray-over device and piping shall deliver the required amount of water to brew urn grind coffee (also referred to as drip or universal grind) in not greater than 6 minutes, and regular grind coffee in not greater than 13 minutes. The solids in the brewed coffee shall be between 1.15 and 1.32
9、 percent of the total weight of the brew in each compartment. The urn shall maintain brewed coffee at a temperature between 180F and 190F. Initial heat-up time shall be not greater than 50 minutes, and recovery time between brews shall be not greater than 15 minutes, based on an incoming water tempe
10、rature of 70F. which shuts off electric power when the water level drops below a point considered to be detrimental to the unit. The urn shall have a liquid level sight glass with a guard for each coffee compartment and water compartment. The urn shall thermostatically control water temperature at a
11、n operating range of 175F to 220F. leacher bags, and shall be provided with a stainless steel leacher assembly. If muslin filter bags are supplied, at least six shall be provided. The urn, including coffee and water compartments and covers, shall have a thickness of not less than 20-gauge stainless
12、steel. Other metal fittings and hardware shall be brass with chrome-nickel plating or stainless steel, except as required below. The urn shall be not greater than 36 inches wide by 20 inches deep by 31 inches high. The urn shall be provided with one coffee faucet per compartment and one hot water fa
13、ucet. Coffee faucets shall be gravity fed, while the hot water faucet may be gravity fed or tap water fed. The urn shall have 4-inch stainless steel legs for level support, provided with means for secure mounting to a counter. The urn shall be heated by immersion-type heating elements rated for the
14、specified voltage, frequency, and phase. Heating elements shall be replaceable after installation of the urn. The urn shall be provided with low water protection The urn shall alternatively use both paper and muslin 3.2 Inclined operation. The urn shall operate satisfactorily (in accordance with the
15、 requirements of this CID) with no spillage of liquid or product, or contact of liquid with the leacher, when filled with the specified amount of brew and test-operated for 30 seconds inclined at an angle of 15“ (30“ when specified for submarines) each side of the vertical in each of the two vertica
16、l planes at right angles to each other. (Shipboard requirement, see 7.2) 3.3 Accessibility. The unit shall be physically and visually accessible from the front for operation and for normal maintenance with tools, test equipment, and replacement parts. No special tools shall be required for access or
17、 parts replacement. 3.4 Faucets. Faucets shall be anti-splash, self-closing with replaceable seat cups or washers, and operable through temperatures up to 220F. clearance between the bottom of the compartment faucets and the drip trough splash cover shall be between 11 and 13 1/4 inches. Handles and
18、 knobs subject to temperatures above 120F shall be plastic. The 3.5 Electrical requirements. The unit shall operate on 440 VAC, 60 Hz, three-phase power, as defined in MIL-STD-1399, Section 300, and shall have provisions for making direct (hardwired) connections for electric power (2 conductors) and
19、 for equipment grounding (1 conductor). All outermost metallic surfaces shall be grounded via the equipment grounding connection. The grounding resistance between any exposed metallic surfaces and the common ground point shall be not greater than 0.1 ohm. Electrical components, other 2 Provided by I
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