1、IzEEmElMIL-R-16743F(SH)II1 March 1991SUPERSEDINGMIL-R-16743E(SHIPS)1 December 1959(See 6.11)MILITARY SPECIFICATIONREFRIGERATING PLANTS AND SYSTEMS, MECHANICAL;AND REFRIGERATING SYSTEM COMPONENTS -DICHWRODIFLUOROMETHANE (R-12) -NAVAL SHIPBOARDThis specification is approved for use by the Naval SeaDep
2、artment of the Navy, and is available for use by allAgencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers mechanical navalSystems Command,Departments andshipboardrefrigerating plants, systems and components using a reciprocating compressor anddichlorodifluoromethane (R-1
3、2) refrigerant. Components include the variousassemblies or parts that comprise a system or plant. Design, construction andtest requirements herein establish minimum requirements for satisfactory shipboarduse.1.2 Classification. Refrigerating equipment should be of the followinggroups, types, and cl
4、asses as specified (see 6.2):Group I - Components for shipboard refrigerating plants and systemsacquired separately.I1!,Beneficial comments (recommendations, additions, deletions) and any pertinentdata which may be of use in improving this document should be addressed to:Commander, Naval Sea Systems
5、 Command, SEA 55Z3, Department of the Navy,Washington, DC 20362-5101 by using the self-addressed StandardizationDocument Improvement Proposal (DD Form 1426) appearing at the end of thisdocument or by letter.AMSC N/A FSC 4130DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlim
6、ited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-16743F(SH)Group II - Refrigerating plants and assemblies.Type I - Plants and assemblies for refrigerated storage applications(see 3.7.1, for service A or B see table II):Class 1 - Compressor
7、unit assembly (see 3. 7.1.1)Class 2 - Condensing unit assembly (see 3.7 .1.2)Service AService BClass 3 - Complete refrigeration plane (see 3.7.1.3)Service AService BType II Plants and assemblies for air conditioning applications(see 3.7.2, for service A or B see table 111):Class 1 - Compressor unit
8、assembly (see 3. 7.2.1)Class 2 - Condensing unit assembly (see 3.7.2.2)Service AService BClass 3 Built-up air conditioning plant (see 3.7 .2.3)Service AService BClass Lumber and Plywood Sheathed, Nailedand Bolted.MIL-P-116 - Presemation, Methods of.MIL-S-901 - Shock Tests, H.I. (High-Impact); Shipbo
9、ardMachinery, Equipment and Systems, Requirementsfor.MIL-E-917 - Electric Power Equipment, Basic Requirements (NavalShipboard Use).DOD-D-1OOO - Drawings, Engineering and Associated Lists,MIL-F-1183 - Fittings, Pipe, Cast Bronze, Silver-Brazing,General Specification for.MIL-F-1183/10 - Fittings, Pipe
10、, Cast Bronze, Silver-Brazing, Union,Pipe.MIL-E-2036 - Enclosures for Electric and Electronic Equipment.MIL-C-2212 - Controllers, Electric Motor A.C. or D.C., andAssociated Switching Devices.MIL-M-3971 - Meters, Time Totalizing, Non-Hermetically Sealed,Electrical: General Specification for.MIL-M-779
11、3 - Meter, Time Totalizing.MIL-M-7793/7 - Meter, Time Totalizing, Miniature, Digital, 115 V,60 Hz.MIL-P-15024 - Plates, Tags and Bands for Identification ofEquipment.MIL-P-15024/5 - Plates, Identification.MIL-E-15090 - Enamel, Equipment, Light-Gray (Formula No. 111).DOD-P-15328 - Primer (Wash), Pret
12、reatment (Formula No. 117 forMetals) (Metric).MIL-T-15377 - Temperature Monitor Equipment Naval Shipboard.MIL-C-15730 - Coolers, Fluid, Naval Shipboard: Lubricating Oil,Hydraulic Oil, and Fresh Water.MS16142 - Boss, Gasket Seal Straight Thread Tube Fitting,Standard Dimensions for.MIL-T-16420 - Tube,
13、 Copper-Nickel Alloy, Seamless and Welded(Copper Alloy Numbers 715 and 706).MIL-M-17060 - Motors, 60-Hertz, Alternating Current, Integral-Horsepower, Shipboard Use.MIL-I-17244 - Indicators, Temperature, Direct-Reading,Bimetallic, (3 and 5 Inch Dial).MIL-M-17508 - Mounts, Resilient: Types 6E2000, 6E9
14、00, 6E900BB,7E450, 7E450BB, 6E150, and 6E1OO.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-16743F(sH),1!IIII ,.!I IIMILITARY (Continued)MIL-A-18001 - Anodes , Corrosion Preventive, Zinc; Slab Disc andRod Shaped.MS18229 - Plug for “O” Ring Gas
15、ket.MIL-G-18997 - Gauge, Pressure, Dial Indicating.MIL-S-19500 - Semiconductor Devices, General Specification for.MIL-T-19646 - Thermometers, Remote Reading, Self -Indicating Dial,Gas Accuated.NIL-M-19863 - Mount, Resilient: Type 5B5000H.MIL-F-2oo with Appropriate Test Methods.Interface Standard for
16、 Shipboard Systems ElectricPower, Alternating Current.Human Engineering, Design Criteria for MilitarySystems, Equipment and Facilities.DOD Materiel Procedures for Development andApplication of Packaging Requirements.Calibration Systems Requirements.(Unless otherwise indicated, copies of federal and
17、military specifications,standards, and handbooks are available from the Standardization Documents OrderDesk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)2.1.2 Other Government documents, drawinm. and mblications. The followingother Government documents, drawings, and publications form
18、 a part of this docu-ment to the extent specified herein. Unless otherwise specified, the issues arethose cited in the solicitation.DRAWINGSNAVAL SEA SYSTEMS COMMAND (NAVSEA)NAVSHIPS 810-1385839 I NAVSHIPS 810-1385850 -NAVSHIFS 810-1385861 -NAVSHIPS 803-5959186 -Condenser, Refrigerant Finned Tube fo
19、rRefrigeration Application.Piping, Instrument Pressure for AllServices.Flanges Sea Water 700 PSI Max.Anode Plug, Submarine Heat Exchanger. .5IIProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-16743F(sH)(Application for copies should be addressed
20、 to: Commander, Portsmouth NavalShipyard, Code 202.2, Portsmouth, NH 03801. )PUBLICATIONSNAVAL SSA SYSTEMS COMMAND (NAVSSA)0900 -LF-O01-7000 - Fabrication and Inspection of Brazed PipingSystems.o948-LP-O45-7O1O - Material Identification Control.NSTM Chapter 078 - Gaskets, Packing and Seals.(Applicat
21、ion for copies should be addressed to the Standardization DocumentsOrder Desk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 19111- 5094. )DAVID TAYLOR RESEARCH CENTER (DTRC)DTNB Report No. 880 - A Guide for the Selection and Application ofResilient Mounting to Shipboard Equipment.DTMB Renort No. 1
22、480 - Mathematical Analvsis and Dieital Comtmter(Application for copies should beBethesda, MO 20084. )Solution of Natral Frequenies and hotmalModes of Vibration for a Compound SolutionMounting System.addressed to David Taylor Research Center,2.2 Non-Government uublicat ions. The following document(s
23、) form a part ofthis document to the extent specified herein. Unless otherwise specified, theissues of the documents which are DOD adopted are chose listed in the issue of theDODISS cited in the solicitation. Unless otherwise specified, the issues ofdocuments not listed in the DODISS are the issues
24、of the documents c i ted in thesolicitation (see 6.2) .AMERIcAN NATIONAL STANDARDS INSTITUTE (ANSI)B1 .12 - Class 5 Interference-Fit Thread.B16.22 - Wrought Copper smd Copper A21OY Solder Joint PressureFittings . (DoD adopted)B18. 2.1 - Square and Hex Bolts and Screws Inch Series.(DoD adopted)B18. 2
25、.2 - Square and Hex Nuts.B46 .1 - Surf ace Texture (Surf ace Roughness, Waviness, and by) .(DoD adopted)(Application for copies should be addressed to the American NationalStandards Institute, 1430 Broadway, New York, NY 10018. )ANERICAN SOCIETY FOR TESTING AND MATERIALS (ASTN)A 240 - Stan:;.:.IMIL-
26、R-16743F(sH)3.5.7 Electrical.3.5.7.1 Electrical Dower. Electric power supply will be 440-volts, 3-phase,60 Hz alternating current (at). All controls and oil heaters shall be operatedfrom 115 volts.3.5.7.2 Electrical eauiment. Electrical equipment components, controls anddevices shall conform to the
27、requirements of MIL-E-917. Enclosures for electricaland electronic equipment shall conform to the requirements of MIL-E-2036.Equipment shall perform as specified when supplied with type I power, as definedin MIL-STD-1399, section 300. Vacuum tubes shall not be used. Permanent markersfor wire and cab
28、le shall be provided as requiredby MIL-STD-195. h ammeter todetermine motor current shall be supplied for installation on the gaugeboard. Thecontroller shall be suitable for remote mounting.3.5.7.2.1 Electromametic interference. The equipment shall meet thefollowing requirements of MIL-STD-461:(a) T
29、he control system including associated transducers, sensors,actuators, and intercomecting cables shall meet the followingrequirements of Part 5 of MIL-STD-461:CEO1 RE02 CS06 RS03CE03 Csol RSO1REol CS02 RS02(b) Previously tested and certified equipment that has met the EMI testlimits of previous revi
30、sions of MIL-STD-461 (see 6.7) areacceptable, without retest, upon delivery of an EMI certification.EMI testing of the control system shall be performed to verifycompliance with the requirements of MIL-STD-461 (see 6.3).Government witness of testing is required.(c) To satisfy the requirements of MIL
31、-STD-461, the contractor shalldemonstrate that the overall approach, design procedures, andtechniques employed are appropriate for meeting the EM1requirements. The overall approach, design procedures andtechniques shall be reviewed at a series of informal technicalmeetings with a Government EMI spec
32、ialist.3.5.7.3 Motors. Motors shall be in accordance with MIL-M-17060 asapplicable, or as specified (see 6.2). Motors shall be of sufficient horsepowerrating to start, accelerate, and operate the driven auxiliaries under all maximumload conditions without exceeding specified limitations. They shall
33、have thefollowing characteristics:ServiceTypeDutyDesignEnclosureAmbient temperatureInsulationEfficiencyA (unless otherwise specified (see 6.2)Squirrel cage inductionContinuousBDripproofSo”cClass BMinimum 97 percent at 4/4 load, 96 percent at3/4 and 95 percent at 2/4 load23Provided by IHSNot for Resa
34、leNo reproduction or networking permitted without license from IHS-,-,-MIL-R-16743F(sH)1,:.,The motor shall have a sealed insulation system approved by NAVSEA.3.5.7.4 Motor controllers. Unless otherwise specified (see 6.2) , motorcontrollers shall be in accordance with MIL-C-Z212. The controller sha
35、ll bearranged to stop the compressor motor when any of the switches open. Eachcompressor motor controller shall be provided with a manual push-button masterswitch of the momentary contact type to permit bypassing of the low pressurecontrol switch. The control operation shall be such that opening of
36、the compres -sor high pressure, water failure, high oil temperature, or oil failure switch,manual re-starting of the compressor will be required. Provision shall beincluded for the connection of a rsf rigsrant solenoid valve circuit. The circuitshall be such that the solenoid valve shall receive pow
37、er only upon closing of allof the following switches: high pressure switch, oil pressure switch, lowtemperature switch, water failure switch, high oil temperature switch and chilledwater operating thermostat, low voltage relay, and overload relay. The operationof the low pressure switch shall not af
38、fect the solenoid valve circuit. Closingthe low pressure switch shall not restart the motor without the solenoid valvebeing energized. The circuit also shall be arranged to permit the option ofconnect ing the water failure switch so that its operation does not affect thesolenoid valve circuit. The l
39、ow voltage relay shall have a consistently higherdrop-out voltage than the compressor motor contactor. The low voltage relaycircuit shall function to de-energize the compressor motor before a low voltagecondition can cause any other component to interrupt the compressor motor circuit,Once the low vo
40、ltage relay drops out, manual restarting of the compressor motorshall be required.3 .5.7.4.1 Control circuit. The control circuit shall also function toactuate the oil cooler solenoid, oil heaters, ant i- recycle timer and operatingtime meter. The oil cooler solenoid valve shall be energized when th
41、e compressoris operating and de-energized when the compressor stops for any reason. Thecrankcase electric oil heaters shall be energized when the compressor stops andde-energized when the compressor starts. The circuit for the oil heaters shallinclude an indicating light mounted on the condensing un
42、it gaugeboard. Theindicating light shall be energized when the crankcase heater is energized. llmeant i- recyc Le timing device and control relay shall prevent immediate restartingthe compressor after it has stopped for any reason. The anti -recycle timer shallbe adj us table in the 5 to 10 minute r
43、ange. A bypass push-button shall be providedfor emergency restart. The operating time meter shall be a nonadjustable elapsed(running) digital time meter to indicate total hours of compressor operation. Themeter shall be in accordance with MIL-M-3971. or MIL-M-7793 and MIL-14-7793/7 exceptthe operati
44、ng time indicator shall be capable of indicating 99, 999 hours.3.5. 7.4.2 Water mnrm motor controller. Each condenser water pump motorcontroller shall include a maintaining contact switch. Provision for the requiredsemi-automatic performance, automatic performance and low voltage protection maybe ma
45、de through interconnection with the controller for the compressor motor. rhecontroller for the pump motor shall be suitable for interconnection to the con.Croller for the compressor motor so chat the controller for the pump motor isdependent on the operation of the control switches and relays , but
46、not the wacer -failure switch of the controller for the compressor,24Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1IMIL-R-16743F(SH)I1;$:i ;.I ,13.5.7.4.3 Compressor motor controlle. The compressor motor controllershall be in accordance with the f
47、ollowing requirements:Dripproof enclosure.Ambient temperature of 50”C.Continuous duty.Magnetic operation.Across-line start.Low voltage and overload protection.Time delay on restart.Over current relays.h interlock shall be provided to activate oil heaters and controls when theunit is not in operation
48、 and oil cooler solenoid valve when unit isoperating.3.5.7.5 Master switches. Master switches shall include pressure controls,temperature controls and push button switches and shall be in accordance withMIL-C-2212 or as otherwise specified herein or in the contract or order (see 6.2).3.5.7.5.1 Press
49、ure and temerature controls. Pressure and temperaturecontrols shall conform to the following classification requirements:Ambient temperature . . . . . . . . . . . . . . . . . . 50cDuty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ContinuousVoltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . As required by control circuitEnclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Spraytight3.5.7.5.2 .Push button master sw
