1、Designation: F 1075 97 (Reapproved 2008)An American National StandardStandard Specification forDehumidifier, Shipboard, Mechanically Refrigerated, Self-Contained1This standard is issued under the fixed designation F 1075; the number immediately following the designation indicates the year oforiginal
2、 adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers self-contained dehumidifiersusing hermeti
3、c refrigerant motor-compressors.1.2 The values stated in inch-pound units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 The following safety hazards caveat pertains only to thetest methods portion, Section 11, of this specification: Thisstandard does
4、not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standard
5、s:2B117 Practice for Operating Salt Spray (Fog) ApparatusB 280 Specification for Seamless Copper Tube for AirConditioning and Refrigeration Field ServiceD 1654 Test Method for Evaluation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD 2247 Practice for Testing Water Resistance of
6、Coatings in100 % Relative Humidity2.2 ASHRAE Standard:3ASHRAE15 Safety Code for Mechanical Refrigeration2.3 Offcial Classification Standard:4Uniform Freight Classification Ratings, Rules, and Regula-tions2.4 UL Standards:5UL 474 DehumidifiersUL 984 Hermetic Refrigerant MotorCompressors2.5 Military D
7、ocuments:6MIL-S-901 Specification Requirements for Shock Tests,High Impact (H.I.); Shipboard Machinery, Equipment,and SystemsMIL-STD-167-1 Mechanical Vibrations of ShipboardEquipment, (Type IEnvironmental and Type IIInternally Excited)MIL-D-19947 Specification for Dehumidifier, Space, Me-chanically
8、Refrigerated, Self-Contained, Naval Shipboard3. Ordering Information3.1 Orders for products under this specification shall includethe following information, as necessary, to describe adequatelythe desired product:3.1.1 Title, ASTM designation, and year of issue,3.1.2 Quantity (number of dehumidifier
9、s),3.1.3 Certification if required, and3.1.4 Additions to the specification and supplementary re-quirements, if required.4. Materials and Manufacture4.1 In addition to the requirements cited in this specifica-tion, the dehumidifiers covered by this specification shall bedesigned, constructed, assemb
10、led, and tested to comply withUL 474, UL 984, and ASHRAE Standard 15. In the event ofdifferences between any of the requirements of this specifica-tion and those of other referenced documents, the requirementsof this specification shall govern. The manufacturer shallcertify compliance with the above
11、 standards for equipmentfurnished and shall be cited in the UL Electrical Appliance andUtilization Equipment product directories.4.2 The dehumidifier shall consist of a motor-compressor,condensing unit, dehumidifying coil, air-circulating fan, andaccessories, all enclosed within a metal cabinet. The
12、 dehumidi-fier shall be complete, self-contained with the refrigeration1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved Nov. 1, 2008. Publi
13、shed December 2008. Originallyapproved in 1987. Last previous edition approved in 2004 as F 1075 97 (2004).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the stand
14、ards Document Summary page onthe ASTM website.3Available from American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA30329.4Available from Uniform Classification Agent, Tariff Publication Officer, Room1106, 222 South Riverside Pl
15、aza, Chicago, IL 60606.5Available from Underwriters Laboratories Inc., 333 Pfingsten Rd., North-brook, IL 60062.6Available from Superintendent of Documents, U.S. Government PrintingOffice, Washington, DC 20402.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
16、9428-2959, United States.equipment dehydrated, and charged with the necessary operat-ing quantity of refrigerant and oil. Each unit shall be ready foroperation after removal of shipping protection, opening ofvalves where provided, and connection to electric power.4.3 The motor-compressor shall be of
17、 the hermetic type andshall consist of a compressor and motor enclosed in a gastightshell. The hermetic compressor unit shall conform to UL 984and shall be at least16 hp. Equipment shall operate on 115-V,single-phase, 60-cycle alternating current. The unit shall beprotected against overload by a the
18、rmal protector built into themotor. The thermal protection shall be either the manual orautomatic reset type.4.4 Piping necessary for the satisfactory operation of theequipment shall be provided by the manufacturer. Tubing shallbe made of copper in accordance with Specification B 280.Piping connecti
19、ons shall be arranged in such a manner so as notto impair the vibration-isolation properties of absorption-typemounts, where such mounts are provided. Piping shall besecurely supported to minimize strain and vibration. Pipingconnections shall not be made of soft solder.4.5 Materials used in the manu
20、facture of the equipmentshall be corrosion-resistant or treated to resist corrosion. Themethod of manufacture shall not impair physical, structural, orcorrosion-resistant properties of the components. Materials,coatings, and paint systems shall satisfactorily pass the appli-cable salt spray and humi
21、dity test specified in this specification.4.6 Bolts, nuts, studs, pins, screws, and such other fasten-ings or fittings shall be of a corrosion-resisting material, or ofa material treated in a manner to render it adequately resistantto corrosion. Screws exposed in final assembly shall becorrosion-res
22、isting material.4.7 Similar parts, including repair parts, or correspondingapparatus furnished on the same contract or order, or built tothe same drawings, shall be strictly interchangeable without thenecessity of further machining or hand fitting of any kind.4.8 A plastic or other chemically inert
23、container shall beprovided for collecting the condensate. The container shall beof a size and configuration that will fit within the cabinetenclosure. The container shall be provided with baffles toprevent the overflow or spilling of water and shall be readilyremovable from the dehumidifier cabinet.
24、 A male fitting shallbe provided from the container for connection of a 0.375-in.(10-mm) inside diameter flexible rubber tubing for draining thecondensate (wall thickness 0.125 in. (3 mm). The rubbertubing will not be required to be furnished by the contractor.4.9 Provision shall be made in the fram
25、e to permit securingthe cabinet to any appropriate surface.4.10 Identification plates shall be of a nonferrous metal orcorrosion-resisting steel and shall conform to UL 474.5. Performance Requirements5.1 The unit shall be capable of condensing at least 1.8 gal(7 L) of water in 24 h at an ambient tem
26、perature of 90F (32C)dry bulb and 60 % relative humidity.5.2 The unit shall operate satisfactorily in a maximumambient temperature of 110F (43C) and a minimum relativehumidity of 30 %. Under these conditions of maximal load, thetemperature rise of the hermetic motor shall not exceed 158F(70C).5.3 Th
27、e equipment shall operate satisfactorily when inclinedat an angle of 15 on each side of the vertical, in each of twovertical planes at right angles to each other.6. Other Requirements6.1 Design DocumentationA master drawing of a builtconfiguration shall be provided for each of the following:6.1.1 Co
28、mplete dehumidifier,6.1.2 Motor compressor,6.1.3 Condenser, and6.1.4 Fan and cooling coil.6.1.5 Each master drawing shall show outline, mounting,attachment, and connection dimensions, including methodsand sizes of fastenings and clearances for installation andservicing, plus supplementary data as ne
29、cessary to permitinstallation without suppliers assistance. The drawing shallillustrate design, construction, operation (or function), andidentity of parts. Where acceptance tests are required, the testsshall be identified, and approval authority and date shall benoted on the drawing. Subassembly dr
30、awings shall be providedto supplement master drawings where desirable.6.2 Schematic Drawings:6.2.1 Schematic drawings shall be provided that include allmechanical, piping and electrical circuits, and connections.6.2.2 All symbols used for equipment components or partsshall be given a piece number an
31、d identified in the list ofmaterials with the following information:6.2.2.1 Piece number,6.2.2.2 Quantity required,6.2.2.3 Descriptive name,6.2.2.4 Manufacturer,6.2.2.5 Manufacturers model or identifying number,6.2.2.6 Manufacturers drawing number, and6.2.2.7 Weight.6.3 ManualsManuals shall be typed
32、 in accordance withthe manufacturers commercial practice. Photo views of theequipment shall be included as part of the general description.A section shall be provided containing reduced copies of alldrawings required to amplify or illustrate the text includingdiagram and assembly drawings.7. Workman
33、ship, Finish, and Appearance7.1 All materials forming a part of the finished product shallbe new and suitable for the purpose intended. The materialsshall be free from any defects that might affect the serviceabil-ity or appearance of the finished product.7.2 Seal caps in the refrigerant system shal
34、l be providedwith a gasket and shall be tight against any leaks.7.3 Bolts, nuts, and screws shall be tight and equipment andparts shall be properly fastened and secured.7.4 No parts or components shall be fractured, split, torn,dented, or otherwise defective.7.5 The limiting and mounting dimensions
35、shall be inaccordance with the drawings.7.6 There shall be no sharp or ragged edges that may beinjurious to people.F 1075 97 (2008)28. Sampling8.1 Sample units shall be selected from each lot offered fordelivery, in accordance with Table 1 and subjected to the testsspecified in 8.3.8.2 If any unit f
36、ails in any test or is found nonconforming inany requirement, it shall be counted a defective unit, and if thenumber of such defective units in any sample exceeds theacceptance number shown in Table 1 for the sample, the lotrepresented by the sample will be rejected.8.3 Quality Conformance Tests:8.3
37、.1 The units shall be operated for a period of at least 1 hunder ambient atmosphere conditions. During the test, allrefrigerant containing parts shall be leak tested by means of ahalide leak detector and shall be free of any leaks. In theevidence of leakage, the unit shall be considered defective. T
38、hehalogen leak detector shall have a leak index sensitivity of12oz per year (14 g per year).8.3.2 Under equivalent ambient temperature, the electricalpower input shall be measured and compared with the input ofall other units that have been tested. If any unit requires 7 %more power than the average
39、 of all the acceptable units, it shallbe counted as a defective unit and shall only be offered fordelivery after the cause has been found and corrected.9. Number of Tests and Retests9.1 A first unit shall satisfactorily pass the tests listed in11.1-11.3 before production units are offered for delive
40、ry.9.2 A test for the corrosion-resistant properties of thematerials, coating, and painting system used, shall be carriedout as specified in 11.4.10. Specimen Preparation10.1 Test specimens for the corrosion test shall be preparedby the manufacturer as required, and shall be of the samematerial used
41、 in the dehumidifier. The film thickness of thecoating or paint system applied on the test specimen shall bethe same as the film thickness used on the equipment.11. Test Methods11.1 Design Capacity TestInstall the unit in an ambienttemperature of 90F (32C) and 60 % relative humidity.Operate the unit
42、 for a period of 4 h. Under these conditions, theunit shall condense moisture at the rate of at least 1.8 gal (7 L)of water in 24 h. Record ambient temperature, relative humid-ity, and quantity of condensate at 20-min intervals.11.2 Overload TestInstall the unit in an ambient tempera-ture of 110F (4
43、3C) and not less than 30 % relative humidity.The unit shall operate without tripping the compressor motoroverload device or without breakdown. Continue the test untilsteady conditions have been observed for at least 4 h. Recordambient temperature, relative humidity, and voltage at serviceconnection
44、every 20 min. Determine the temperature of thecompressor-motor winding at the end of the 4-h test period.The temperature rise shall not exceed 158F (70C). Measureand compute the temperature rise of the running winding in thecompressor-motor by the resistance method.11.3 Inclination TestIncline the u
45、nit at an angle of 15 oneach side of the vertical in each of two vertical planes at rightangles to each other and operate at least1hineach plane withno abnormal variations in temperature. Collect and draincondensate from the evaporator into the container without anyspillage in any of the inclined po
46、sitions.11.4 Corrosion Resistant TestTest the test specimens in acorrosion environment in accordance with Practice B117(SaltSpray Apparatus) and Practice D 2247 (100 % relative humid-ity test). The time duration of each test shall be 240 h. Evaluatethe test specimens in accordance with Test Method D
47、 1654.The rating number shall not be less than 6, and the rust creepshall not be greater than18 in. (3 mm) normal to the scribemarks for acceptance.12. Inspection12.1 Unless otherwise specified in the purchase order orcontract, the manufacturer is responsible for the performanceof all inspection and
48、 test requirements specified in this speci-fication. Except as otherwise specified in the purchase order orcontract, the manufacturer may use his own or any othersuitable facilities for the performance of the inspection and testrequirements unless disapproved by the purchaser at the timethe order is
49、 placed. The purchaser shall have the right toperform any of the inspections and tests set forth in thisspecification when such inspections and tests are deemednecessary to assure that the material conforms to the prescribedrequirements.13. Rejection13.1 Material that fails to conform to the requirements ofthis specification when inspected or tested by the purchaser orhis agent may be rejected.14. Certification14.1 When specified in the purchase order or contract, amanufacturers or suppliers certification shall be furnished tothe purchaser stating
