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Marine/Industrial
SinglePackage
CoolingUnit
Models
90MA/MF/MU,DesignSeriesTwo
BeginningSerialNumberC00400
62--10458--00
INSTALLATION
OPERATION&SERVICE
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OPERATIONANDSERVICEMANUAL MARINE/INDUSTRIALSINGLEPACKAGE COOLINGUNIT MODELS 90MA/MF/MU,DesignSeriesTwo BeginningSerialNumberC00400 Carrier Refrigeration Operations, A member of theUnitedTechnologies Corporationfamily. Stock symbolUTX. Carrier Transicold,Carrier Corporation,P.O.Box 4805,Syracuse,N.Y.13221 U.S.A. Carrier Corporation2000 D PrintedinU.S.A.0700
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SAFETYSUMMARY GENERALSAFETYNOTICES The following general safety notices supplement the specific warnings and cautions appearing elsewhere in this manual.Theyarerecommendedprecautionsthatmustbeunderstoodandappliedduringoperationandmaintenance oftheequipmentcoveredherein.Thegeneralsafetynoticesarepresentedinthefollowingthreesectionslabeled:First Aid,OperatingPrecautionsandMaintenancePrecautions.Alistingofthespecificwarningsandcautionsappearing elsewherein themanual follows thegeneral safety notice
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CAUTION Sharpedgesofcoilfinsareexposed.Topreventinjury,covertopofevaporatorwithcardboardorafew layersofheavytape. CAUTION Toavoidcoildamage,coverevaporatorfacewithplywoodorotherrigidsheetmaterial.Ifanycoilfins aremashedorbent,straightenwithacoilfincombofthepropertoothspacing(referto“coilfins/inch” in Table1 through Table2). Check forrefrigerantleaks. CAUTION Beforeattemptingtoremovefan motorsormotormounts,placeapieceofplywood overevaporator coilstopreventcoil damage. 62--10458--00 Safety-2
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TABLEOFCONTENTS PARAGRAPHNUMBER Page GENERALSAFETYNOTICES ..................................................... Safety-1 FIRSTAID ...................................................................... Safety-1 OPERATINGPRECAUTIONS ...................................................... Safety-1 MAINTENANCEPRECAUTIONS .................................................. Safety-1 SPECIFIC WARNINGANDCAUTIONSTATEMENTS ................................. Safety-1 1. INTRODUCTION ..........................
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LISTOFILLUSTRATIONS FIGURENUMBER Page Figure1BaseUnit InteriorDetails(Typical) ................................................ 1 Figure2Unit Dimensions ............................................................... 5 Figure3 Horizontal Wheel Centering ...................................................... 5 Figure4 ConcentricWheel Alignment ..................................................... 5 Figure5ConnectionLocations ........................................................... 6 Figure6Typ
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1. INTRODUCTION 3.1 Inspect Unit Checkunitagainstshippingorder.Inspectcarefullyfor The 90M series single--package cooling units (See concealedshippingdamage.Ifshipmentisdamagedor Figure1) are designed to provide air conditioning aboard marine vessels and in industrial applications. incomplete,fileclaimwithtransportationcompanyand The 90MA units are fitted with sea water cooled advise Carrier Transicold immediately. condensers while the 90MF units are fitted with fresh 3.2 Protect Unit fromDamage
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Table190MA/MF/MUPhysical Data -- Refrigerant 22 R--22 -- English Units R--22 -- MetricUnits BASEUNIT90MA/MF/MU UNITS 204 206 208 212 204 206 208 212 English (Metric) NOMINALCAPACITY Tons (kW) 3 5 7.5 10 10.5 17.6 26.4 35.1 OPERATING WEIGHT BaseUnit -- 90MA/MF Pounds (kg) 390 427 895 950 177 194 406 431 BaseUnit -- 90MU Pounds (kg) 330 360 835 890 150 163 379 404 DischargePlenum Pounds (kg) 25 25 50 50 11.3 11.3 22.7 22.7 COMPRESSOR TYPE WeldedHermetic Semi--Hermetic WeldedHermetic Semi--Hermetic
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Table290MA/MF/MUPhysical Data -- Refrigerant 407C R--407C -- English Units R--407C -- MetricUnits BASEUNIT90MA/MF/MU UNITS 404 406 408 412 404 406 408 412 English (Metric) NOMINALCAPACITY Tons (kW) 3 5 7.5 10 10.5 17.6 26.4 35.1 OPERATING WEIGHT BaseUnit -- 90MA/MF Pounds (kg) 390 427 895 950 177 194 406 431 BaseUnit -- 90MU Pounds (kg) 330 360 835 890 150 163 379 404 DischargePlenum Pounds (kg) 25 25 50 50 11.3 11.3 22.7 22.7 COMPRESSOR TYPE WeldedHermetic Semi--Hermetic WeldedHermetic Semi--He
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Table390MA/MF Physical Data -- Refrigerant 134a R--134a -- English Units R--134a -- MetricUnits BASEUNIT90MA/MF UNITS 308 312 308 312 English (Metric) NOMINALCAPACITY Tons (kW) 5.5 8 19.3 28.1 OPERATING WEIGHT BaseUnit Pounds (kg) 895 950 406 431 DischargePlenum Pounds (kg) 50 50 22.7 22.7 COMPRESSOR TYPE -- Reciprocating Semi--Hermetic Semi--Hermetic Quantity ofCylinders 4 6 4 6 Quantity ofUnloadingCylinders 0 2 0 2 Quantity ofCapacity Steps 1 2 1 2 DISCHARGEPRESSURESWITCH Opens psig(kPa) 3351
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UNIT 004 006 008,012 A 36.19(919) 48(1219) B 21.88(556) 29.62(752) C 59.12(1501) 69.50(1765) D SEENOTE2 E 24(610) F 13.81(351) 16.44(418) 19.38(492) G 13.13(333) 15(381) 17.25(438) H 0.75(19) 0.75(19) 1.31(33) J 12.5(318) 10.62(270) 11.44(291) K 17.06(433) 23.25(591) L 20.50(521) 25.37(644) M 17(432) 17(432) N 31.88(810) 42.62(1083) P 2.06(52) 3(76) Q 10(254) 12.50(318) R 15.56(395) 16(406) NOTES: 1. Certified dimension drawings available upon request 2. Minimum required clearance at back of uni
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90MA/MU008/012UNITS 90MA/MF004/006UNITS 90MU008/012UNITS 90MU004/006UNITS UNIT A* B* C* D* E F G 90MA/MF004 1/2 1/2 ---- ¾FPT ---- ---- 1.75 90MA/MF006 3/4 ---- 3/4 ---- ---- (45) 90MA/MF008/012 1” 1” ---- ---- ---- 90MU004 ---- ---- ---- 1/2flare 1/2flare 90MU006 ---- ---- ---- 1/2flare 1/2flare 90MU008/012 ---- ---- ---- 5/8O.D. 3/4O.D. *A=CondenserIn,B&C =CondenserOut, D=Condensate,allFemalePipeThread,E=LiquidRefrigerant(fieldcut),F= Refrigerant Discharge (field cut), G= Electrical Opening Fi
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Table4Recommended LineSizes, RemoteCondenser UNIT LENGTHOF RUN ((90MU)) 0--25 26--50 51--75 76--100 DISCH LIQUID DISCH LIQUID DISCH LIQUID DISCH LIQUID 004 1/2 (1.3) 1/2(1.3) 5/8(1.6) 1/2(1.3) 5/8(1.6) 1/2(1.3) 7/8(2.2) 1/2(1.3) 006 5/8(1.6) 1/2(1.3) 7/8(2.2) 1/2(1.3) 7/8(2.2) 1/2(1.3) 7/8(2.2) 1/2(1.3) 008 7/8(2.2) 5/8(1.6) 7/8(2.2) 5/8(1.6) 7/8(2.2) 5/8(1.6) 1-1/8(2.9) 5/8(1.6) 012 7/8(2.2) 5/8(1.6) 1-1/8(2.9) 5/8(1.6) 1-1/8(2.9) 5/8(1.6) 1-1/8(2.9) 5/8(1.6) NOTES: 1. Linesizes given in inches
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e. Allow crankcase heater to remain energized (unit power on) for at least 24 hours. Open any valves in condensercoolingwatersupplylinesandthensetse- lectorswitchatCOOLposition.Ifroomtemperature isabovethermostatsettingcompressorwillstart.On first start--up, set water regulating valve. (Refer to paragraph5.7.) f. Set thermostat forcomfort as desired. 4.2 To Shut Down Unit a. TurnselectorswitchtoOFFposition.Donotshutoff main power except to service unit. The crankcase heaterisoperativeonlywhenmai
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5.2 AccessPanel Removal switch T--HIGHtoenergizeliquidlinesolenoid(LLS) [to activatethe full evaporator coil and all compressor a. Removereturn--airgrilleas described above. cylinders]. Ifthermostatswitch T--HIGHis notcalling b.Removethepanel fastening screws nowexposed. for cooling, power flows to energize compressor unloader solenoid (US) [to unload compressor c. Pull out and down to removetop panel. cylinders]. d.Pull out and up to removebottom panel. When room temperature falls to the cutout
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BELT TENSION ADJUSTMENT -- Shut off unit power springtension,decreasewaterflowandincreasepres- supply. Loosen fan motor from mounting bracket. Do sure. notloosenmotormountingbracketfromunit.Movefan If pressure reading is above operating range, rotate motorup ordown untilproperbelttension isachieved thesquarehead adjusting screwclockwise; this will (approximately 3/4--in. deflection with 8--pound decreasespring tension,increasewaterflow andde- tension at midpoint ofbelt span). creasepressure. Lub
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c. Regulateflowtocondenserwithasupplylinevalve. (1607kPa)forR--407Cunits.Chargetoaclearsight Ifpumpisanon--overloadingtype,thevalvemaybe glass. fullyclosedwhilepumpisrunning.Foraveragescale deposit,allowsolutionto remainin condenserover- 90MU004 UNITS R--22 night. Forheavy scaledeposit, allow24 hours. d.Drain condenserand flush with clean water. 90MU006 UNITS R--22 Figure10Forced Circulation Method 5.9 RefrigerantCharging 90MA/MF -- These units are shipped with a full operating charge. If rechar
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TM 5.10 EvaporatorFan MotorRemoval 5.13 Cycle--Loc -- Protection Device All units are equipped with Cycle--LOC a. Shut offunit main powersupply. current--sensinglockoutrelay.Thisdevicewilllockout thecompressorafteranysafetytrip(dischargepressure switch,suction--pressureswitch,orinternaloverloadof WARNING the compressor). Check reason for lockout before Lock open and tag unit disconnect before resettingthedevice.Refertounitlabelwiringdiagram. working on fan motor. Remove fuses and To reset, turn
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Figure12Mounting Base 62--10458--00 13 A USEDON A B C D E F G H J K L M N P R S T V W 004/006 SIZE 10.00 40.25 22.00 38.25 36.25 -- -- 18.005 -- -- 3.18 2.56 8.75 2.00 1.00 5.00 7.50 15.00 0.70 008/012 SIZE 15.38 52.00 27.31 50.00 48.00 1.25 45.50 23.31 0.75 25.81 -- -- -- -- -- 9.00 6.00 16.50 -- BASED ON DRAWING 50BW400093
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WIREPASSESTHOUGH LOOPOFCL CC IPC 11 21 L1 BLK 1 FIELD 12 22 BLU L2 2 POWER C L3 13 23 YEL 3 SUPPLY G IFC IPF GROUND YEL 11 21 YEL T3 12 22 T2 BLU BLU IFM 13 23 BLK BLK T1 GRN ORN BLK BLU CHR BLK BLU 4 5 BLK VIO H3 H5 CH H1 H2 H4 H6 SEENOTE1 TRAN GRN RED F RED X1 X2 BRN C2 CC 24VOLT (SEENOTE3) SW BRN C2 CHR IFC BRN NO VIO TB1--1 RED CC ORN NC BRN TRAN CHR NO YEL TB1--4 RED 1 3 RED CC BRN C2 IFC 90MU UNITS ONLY RED YEL RED CFR BRN ORN CL LOGIC BRN TB1--3 T--LOW X 1 W 3 TB1--5 RED 2 BRN R CHR B BRN
