ASTM F1075-1997(2018) Standard Specification for Dehumidifier Shipboard Mechanically Refrigerated Self-Contained.pdf

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1、Designation: F1075 97 (Reapproved 2018) An American National StandardStandard Specification forDehumidifier, Shipboard, Mechanically Refrigerated, Self-Contained1This standard is issued under the fixed designation F1075; 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 hermetic

3、 refrigerant motor-compressors.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 The following safety hazards caveat pertains only

4、to thetest methods portion, Section 11, of this specification: Thisstandard does 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, health, andenvironmental practices and determine t

5、he applicability ofregulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issu

6、ed by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray (Fog) ApparatusB280 Specification for Seamless Copper Tube for Air Con-ditioning and Refrigeration Field ServiceD1654 Test Method for Evalua

7、tion of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD2247 Practice for Testing Water Resistance of Coatings in100 % Relative Humidity2.2 ASHRAE Standards:3ASHRAE 15 Safety Code for Mechanical Refrigeration2.3 Offcial Classification Standards:4Uniform Freight Classification Ratings,

8、 Rules, and Regula-tions2.4 UL Standards:5UL 474 DehumidifiersUL 984 Hermetic Refrigerant MotorCompressors2.5 Military Documents:6MIL-S-901 Specification Requirements for Shock Tests,High Impact (H.I.); Shipboard Machinery, Equipment,and SystemsMIL-STD-167-1 Mechanical Vibrations of ShipboardEquipme

9、nt, (Type IEnvironmental and Type IIInternally Excited)MIL-D-19947 Specification for Dehumidifier, Space, Me-chanically Refrigerated, Self-Contained, Naval Shipboard3. Ordering Information3.1 Orders for products under this specification shall includethe following information, as necessary, to descri

10、be adequatelythe desired product:3.1.1 Title, ASTM designation, and year of issue,3.1.2 Quantity (number of dehumidifiers),3.1.3 Certification if required, and3.1.4 Additions to the specification and supplementaryrequirements, if required.4. Materials and Manufacture4.1 In addition to the requiremen

11、ts cited in thisspecification, the dehumidifiers covered by this specificationshall be designed, constructed, assembled, and tested to com-ply with UL 474, UL 984, and ASHRAE 15. In the event of1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is t

12、he direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved Sept. 1, 2018. Published October 2018. Originallyapproved in 1987. Last previous edition approved in 2014 as F1075 97 (2014).DOI: 10.1520/F1075-97R18.2For referenced ASTM standards, visit the ASTM

13、 website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE),

14、1791 Tullie Circle, NE, Atlanta, GA30329, http:/www.ashrae.org.4Available from Uniform Classification Agent, Tariff Publication Officer, Room1106, 222 South Riverside Plaza, Chicago, IL 60606.5Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas,WA 98607-8542, http:/.6Available f

15、rom U.S. Government Printing Office, Superintendent ofDocuments, 732 N. Capitol St., NW, Washington, DC 20401-0001, http:/www.access.gpo.gov.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in a

16、ccordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1differences between any of t

17、he requirements of this specifica-tion and those of other referenced documents, the requirementsof this specification shall govern. The manufacturer shallcertify compliance with the above standards for equipmentfurnished and shall be cited in the UL Electrical Appliance andUtilization Equipment prod

18、uct 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 dehumidi-fier shall be complete, self-contained with the refrigerationequipment dehydrated, and charged with the

19、 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 the hermetic type andshall consist of a compressor and motor enclo

20、sed 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 thermal protector built into themotor. The thermal protection shall be

21、 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 B280.Piping connections shall be arranged in such a manner so as notto impair the vibrat

22、ion-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 manufacture of the equipmentshall be corrosion-resistant or treated to r

23、esist 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 humidity test specified in this specification.4.6 Bolts, nuts, studs, pi

24、ns, 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-resisting material.4.7 Similar parts, including repair parts, or corres

25、pondingapparatus 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 container shall beprovided for collecting the condensate. The contai

26、ner 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. A male fitting shallbe provided from the container for connection o

27、f 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 frame to permit securingthe cabinet to any appropriate surface.4.10 Iden

28、tification 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 temperature of 90F (32C)dry bulb and 60 % relative humidity.5.2 The uni

29、t 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 The equipment shall operate satisfactorily when inclinedat an angle of

30、 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 Complete dehumidifier,6.1.2 Motor compressor,6.1.3 Condenser, and6.1.4

31、 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 necessary to permitinstallation without suppliers assistance. The draw

32、ing 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 drawings shall be providedto supplement master drawings where desirabl

33、e.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 and identified in the list ofmaterials with the following information:

34、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 in accordance withthe manufacturers commercial practice. Photo view

35、s 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.F1075 97 (2018)27. Workmanship, Finish, and Appearance7.1 All materials formin

36、g 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 shall be providedwith a gasket and shall be tight agains

37、t 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 shall be inaccordance with the drawings.7.6 There sh

38、all be no sharp or ragged edges that may beinjurious to people.8. 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 fails in any test or is found nonconforming inany requirement, it shal

39、l 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:8.3.1 The units shall be operated for a period of at least 1 hunder ambi

40、ent 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. Thehalogen leak detector shall have a leak index sensitivity of12oz pe

41、r 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 of all the acceptable units, it shallbe counted as a defective unit

42、and shall only be offered fordelivery after the cause has been found and corrected.9. Number of Tests and Retests9.1 Afirst unit shall satisfactorily pass the tests listed in 11.1 11.3 before production units are offered for delivery.9.2 A test for the corrosion-resistant properties of thematerials,

43、 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 in the dehumidifier. The film thickness of thecoating or paint syste

44、m 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 for a period of 4 h. Under these conditions, theunit shall condense

45、moisture at the rate of at least 1.8 gal (7 L)of water in 24 h. Record ambient temperature, relativehumidity, and quantity of condensate at 20-min intervals.11.2 Overload TestInstall the unit in an ambient tempera-ture of 110F (43C) and not less than 30 % relative humidity.The unit shall operate wit

46、hout 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 every 20 min. Determine the temperature of thecompressor-motor winding

47、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 unit at an angle of 15 oneach side of the vertical in each of two vertic

48、al 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 positions.11.4 Corrosion Resistant TestTest the test specimens in acorros

49、ion environment in accordance with Practice B117 (SaltSprayApparatus) and Practice D2247 (100 % relative humiditytest). The time duration of each test shall be 240 h. Evaluate thetest specimens in accordance with Test Method D1654. Therating number shall not be less than 6, and the rust creep shallnot be greater than18 in. (3 mm) normal to the scribe marks foracceptance.12. Inspection12.1 Unless otherwise specified in the purchase order orcontract, the manufacturer is responsible for the performanceof all inspection and test requirements