1、Designation: F 1433 97 (Reapproved 2004)An American National StandardStandard Specification forMechanically Refrigerated Shipboard Air Conditioner1This standard is issued under the fixed designation F 1433; the number immediately following the designation indicates the year oforiginal adoption or, i
2、n the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers self-contained mechanicallyrefrigerated air conditioner
3、s for shipboard use in air circula-tion, air cooling, and dehumidification.1.2 These air conditioners are intended for use in compart-ments and areas where central system air conditioning is notprovided.1.3 The values stated in SI metric units are to be regarded asstandard.1.4 This standard does not
4、 purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards
5、:2A 276 Specification for Stainless Steel Bars and ShapesA 569/A 569M Specification for Steel, Carbon (0.15 Maxi-mum, Percent), Hot-Rolled Sheet and Strip Commercial3B 16/B 16M Specification for Free-Cutting Brass Rod, Bar,and Shapes for Use in Screw MachinesB 61 Specification for Steam or Valve Bro
6、nze CastingsB 75 Specification for Seamless Copper TubeB 148 Specification for Aluminum-Bronze Sand CastingsB 209 Specification for Aluminum and Aluminum-AlloySheet and PlateD 3951 Practice for Commercial Packaging2.2 Air-Conditioning and Refrigeration Institute (ARI):4210 Standard for Unitary Air-C
7、onditioning Equipment2.3 American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE):515 Safety Code for Mechanical Refrigeration37 Methods of Testing for Rating Unitary Air-Conditioningand Heat Pump Equipment2.4 American Water Works Association (AWWA):6C504 Standard for Rubbe
8、r-Seated Butterfly Valves2.5 National Electrical Manufacturers Association(NEMA):7MG 1 Motors and GeneratorsICS 1 General Standards for Industrial Control and Systems2.6 Underwriters Laboratories, Inc. (UL):8465 Standard for Safety, Central Cooling, and Air Condi-tioning873 Standard for Safety Tempe
9、rature-Indicating and Regu-lating Equipment2.7 Federal Specification:9FF-B-171 Bearings, Ball, Annular (General Purpose)2.8 Federal Regulations:9Code of Federal Regulations, Title 463. Terminology3.1 Definitions:3.1.1 inspectionthe process of measuring, examining,testing, gaging, or otherwise compar
10、ing the unit with theapplicable requirements.3.1.2 lotall units of the same type, service, and sizeoffered for delivery at one time.3.2 Definitions of Terms Specific to This Standard:1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct r
11、esponsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved May 1, 2004. Published May 2004. Originallyapproved in 1994. Last previous edition approved in 1997 as F 1433 - 97.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Custome
12、r Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.4Available from Air-Conditioning and Refrigeration Institute, 1501 WilsonBlvd., Arlington, VA 22209.5Available from American Society of Heatin
13、g, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE), 1791 Tullie Circle, NE, Atlanta, GA30329.6Available from American Water Works Association (AWWA), 1401 New YorkAve., NW, Suite 640, Washington, DC 20005.7Available from National Electrical Manufacturers Association (NEMA), 1300N. 17th
14、St., Suite 1847, Rosslyn, VA 22209.8Available from Underwriters Laboratories, Inc., 333 Pfingsten Rd., Northbrook,IL 60062.9Available from Standardization Documents Order Desk, Bldg. 4, Section D,700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.1Copyright ASTM International, 100 Barr Harbo
15、r Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 air discharge plenuman enclosure (housing) con-taining guide vanes and a grill or louvers in the outlet openingfor directing the airflow.3.2.2 air handling/evaporator sectionan enclosed compo-nent consisting of an air filter
16、, fan with drive motor, evaporator(cooling coil), refrigerant flow control, and condensate collec-tor and drain.3.2.3 condensing unitcontains refrigerating components,consisting of a compressor with a drive motor, condenser,receiver, operating and safety controls, and interconnectingpiping and wirin
17、g. The controls include a condenser waterregulating valve, high and low refrigerant pressure switches,refrigerant relief device, and motor overload protection.3.2.4 cooling effectthe net room sensible cooling effect ofa unit is defined as the difference between the net total coolingeffect and the de
18、humidifying effect, expressed in watts. The nettotal cooling effect is the total useful capacity of the unit forremoving heat from the space to be treated, expressed in watts.The net dehumidifying effect is the difference between themoisture content in kilograms per hour of the entering andleaving a
19、ir, multiplied by 685, expressed in watts.4. Classification4.1 The air conditioners should be of the following types,services, arrangements, and size as specified:Type I drip-proof protectedType II explosion-proof enclosedService 1 440-V 60-Hz alternating current (ac)Service 2 230-V direct current (
20、dc)Service 3 115-V dcService 4 220-V 60-Hz alternating current (ac)Arrangement A with air discharge plenumArrangement B without air discharge plenumSize 2 minimum cooling capacity 7000 WSize 3 minimum cooling capacity 10 500 WSize 5 minimum cooling capacity 17 500 WSize 712 minimum cooling capacity
21、26 000 W5. Ordering Information5.1 Orders for material under this specification shall includethe following:5.1.1 Title, number, and year of issue of this specification.5.1.2 Type, service, arrangement, and size of unit (see 4.1).5.1.3 Air discharge plenum required (see 6.1 and 6.5.10).5.1.4 Type of
22、power supply for equipment and motors (see6.5.14.1 and 6.5.14.2).5.1.5 When drip-proof protected or explosion-proof equip-ment is required (see 4.1, 6.5.14.1, and 6.5.14.2).5.1.6 When certification and test reports are required (see14.1).6. Materials and Manufacture6.1 GeneralAir conditioners covere
23、d by this specificationshall consist of a condensing unit section, an air handling/evaporator section, and a motor controller. An air dischargeplenum may be included, if specified. These air conditionersshall be self-contained and shall perform as specified in thisspecification when connected to coo
24、ling water, drainage, andelectric power in accordance with UL 465 and ARI 210. Therefrigerant system shall be constructed in accordance with therequirement of ASHRAE 15. Every component, includinginterconnecting wiring and piping, shall be enclosed within thecabinet, except where external mounting i
25、s permitted by thisspecification. The air conditioner shall be factory assembled,complete, self-contained, with the refrigerant system andcomponents dehydrated and charged with the operating quan-tities of refrigerant and oil. The air conditioner shall be readyfor operation after removal of the ship
26、ping protection, openingof valves, adjustment of belts, and connection to services.Valves, controls, and equipment subject to service and repairshall be readily accessible for servicing through removablepanels. Where panels are provided for access to equipment,machine screws may be used for fastenin
27、g.6.2 Refrigerant SystemEvery component, including pip-ing, controls, and accessories by the refrigerant system, shallbe constructed for use with Refrigerant-22 (monochlorodifluo-romethane) or other specified refrigerant.6.3 MaterialsMaterials shall be as specified in this speci-fication.6.3.1 Dange
28、rous MaterialsMercury and materials whichmay produce dangerous gases or cause other harmful effectsunder conditions, including fire, shall not be used. Magnesiumand its alloys shall not be used in the manufacture of the airconditioners or in any component parts.6.3.2 Corrosion ProtectionCorrosion-re
29、sisting steel, cop-per, brass, bronze, chromium, copper-nickel, and copper-nickelalloys as specified in this specification are consideredcorrosion-resisting materials. Where corrosion-resisting steel isused, it shall be type 316 or 347 in accordance with Specifi-cation A 276. Corrosion-resisting ste
30、el, when fabricated by anymethod that tends to reduce corrosion-resisting properties,shall be normalized to restore those properties before beingused in the assembly of any unit.6.3.2.1 Noncorrosion-Resisting MaterialsNoncorrosion-resisting materials are to be protected against corrosion by theuse o
31、f the chemicals, electrolytic processes, plating, or paintsand enamels.6.3.2.2 Fastenings or FittingsBolts, nuts, studs, pins,screws, and such other fastenings or fittings shall be ofcorrosion-resisting material. Self-tapping screws with machinescrew threads may be used in the cabinet assembly. Shee
32、t metalscrews with sheet metal threads shall not be permitted.6.3.3 Galvanic CorrosionDirect contact of electrolyti-cally dissimilar materials shall be avoided to prevent galvaniccorrosion.6.4 Piping SystemThe construction of the piping systemshall include inlet and outlet Schedule 40 copper-nickel
33、con-denser water piping of the proper diameter, extending horizon-tally outside of the air conditioner cabinet. Construction shallalso include the proper size and type of drain piping from thedrain connection of the air conditioner through the cabinetdown to the deck level.6.5 Air Conditioner Compon
34、ents:6.5.1 CompressorThe compressor shall be of the hermetictype for service 1 and service 4 air conditioners and of the opentype for service 2 and service 3 air conditioners. Provision shallF 1433 97 (2004)2be made for adequate lubrication of the rubbing and wearingsurfaces, including operation und
35、er ship motion, as specified in7.3. Compressors shall be provided with a crankcase heater.Crankcase heaters shall be replaceable without having toremove oil or refrigerant from the compressor and shall bearranged to provide compressor oil heating before start-up andat any time the compressor is in t
36、he off cycle. Compressorsshall be provided with suction and discharge compressorservice shutoff valves and means for charging.6.5.1.1 Open CompressorThe open compressor shall beof the positive displacement type. The shaft seal and mainbearings shall be replaceable in their entirety without thenecess
37、ity of replacing or refurbishing the crankshaft or crank-case. Compressor speeds for open compressors shall notexceed 1800 revolutions per minute (r/min).6.5.1.2 Hermetic CompressorThe hermetic compressorshall be of the positive displacement type.6.5.2 CondenserThe condenser shall be seawater cooled
38、and constructed in accordance with the criteria shown in Table1. The condenser shall be sized so that the compressor motorshall not be overloaded when the air conditioner is experienc-ing overload conditions. The condenser shall be a shell andtube construction with water in the tubes and refrigerant
39、 in theshell and shall have an even number of water passes. Thecondenser shall be mechanically cleanable in place withremovable water boxes or heads to permit tubes to be exam-ined, cleaned, or replaced as necessary. The condenser shall becleanable from either side of the cabinet. Means shall beprov
40、ided to remove entrained air from each inlet pass. Con-denser heat drains shall be provided. Zinc anodes shall beinstalled in the condenser heads (seawater side). The condensershall have a means for purging air and noncondensable gasesand a relief valve to prevent overpressurization of the refrig-er
41、ant side. The tube sheets shall be of copper-nickel (90-10)UNS C70600. The condenser heads shall be of valve bronze,Specification B 61, or nickel-aluminum-bronze, SpecificationB 148, alloy 95800, heat treated at 650C for 1 h, to inhibitde-aluminization in accordance with AWWA standard C504.The tubes
42、 shall be 19-mm outside diameter, constructed ofcopper-nickel (90-10) UNS C70600. The tubes shall be ex-truded fin type. Drain and vent fittings and zinc anode holdersshall be nickel-copper (70-30) UNS C71500.6.5.3 Liquid ReceiverThe liquid receiver shall have aninternal volume at least 25 % greater
43、 than the volume of thecomplete refrigerant charge. The receiver shall contain anoutlet shutoff valve and pressure relief device.6.5.4 Cooling CoilThe cooling coil (evaporator) shall beof finned-tube construction and shall be composed of coppertubes, in accordance with Specification B 75, or aluminu
44、mtubes with copper fins. Fins shall be firmly bonded to the tube.A drip pan and drain for collecting the condensate shall befurnished.6.5.5 Water-Regulating ValvesA water-regulating valveshall be provided at the outlet to each condenser. The valveshall be direct-acting or pilot-controlled actuated b
45、y condensergas pressure to modulate the flow of water required for thecondenser. The valve shall withstand seawater inlet pressuresup to 1.37 MPa. The valve shall be constructed of nonferrousor corrosion-resisting material. The valve shall be constructedto prevent the entry of seawater into the refr
46、igerant system inthe event of derangement.6.5.6 StrainerA strainer shall protect the condenser andwater-regulating valve. The strainer shall be not less than 19mm n.p.s. However, it shall be sized as to not restrict seawaterflow during overload conditions. The strainer shall be shippedloose for inst
47、allation in the seawater piping during air condi-tioner installation.6.5.7 Expansion ValveRefrigerant flow to the cooling coil(evaporator) shall be controlled by a thermostatic valve. Thevalve shall be an adjustable superheat, externally equalizedtype. The valve body shall be of cast or forged brass
48、 or bronze,and the inlet and outlet connections shall be an integral part ofthe valve body.6.5.8 PipingAny piping necessary for the operation of theequipment shall be provided up to and including fittings at eachunit required for interconnection to supplementary service.Exterior connection fittings
49、shall be capped or plugged tosafeguard against damage before installation. The water regu-lating valve shall be installed in the condenser water dischargeline and shall be readily accessible for adjustment and main-tenance. Condenser water supply piping and drain piping shallbe copper-nickel alloy 706. Water pipe fittings and seawaterconnections shall be 90-10 copper-nickel, valve bronze inaccordance with Specification B 61 or monel. No tapered pipethreads shall be used anywhere in the unit. Refrigerant pipingshall have readily accessible test fittings for hi
