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Carrier 90MA/MF/MU manual

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Table of contents for the manual

  • Page 1

    62 - - 10458 - - 00 Models 90MA/MF/MU, Design Series T wo Beginning Serial Number C00400 INST ALLA TION OPERA T ION & SER VICE Marine /Industria l Sing le Packag e Cooling Unit[...]

  • Page 2

    Carr ier C orporation 2000 D Printed in U . S. A. 0700 OPERA TION AND SER VICE MANUAL MARINE/INDUSTRIAL S INGLE P ACKAGE COOLING UNIT MODELS 90MA/ MF/M U, Design Series T wo Beginning Serial Number C00400 Carr ier Transic old, Car rier C orporat ion, P .O . Box 4805, Sy rac us e, N.Y . 13221 U. S. A . Carr ier Refriger ation Operations , A member o[...]

  • Page 3

    Safe ty- 1 62 - - 10458- - 00 SA FETY S UMMA R Y GENE RAL SAF ET Y NOT I CES The following ge nera l safe ty notices supplement the specific war nings and c autions appear ing elsew here in this manual. They are recomm ended precautions t hat mu st be understood and applied during operation and maintenance of the e quipment cover ed he rein. The ge[...]

  • Page 4

    Safe ty-2 62- - 10458 - - 00 CAUTIO N Sharp edges of coil fins ar e exposed. T o pr event injury , cover top of evaporator with cardboard or a few layers of heavy tape. CAUTIO N T o avoid coil d amage, cover e vaporator fac e with plywood or other rigid sh eet mat erial. If an y coil fins are ma sh ed or ben t, stra igh ten wi th a coil fin co mb o[...]

  • Page 5

    i 62- - 10458 - - 00 T ABLE O F CONT ENTS P ARAGRAPH NUM BER Page GENERAL S AFETY NOTIC ES Safety -1 ..................................................... FIRST A ID Safet y-1 ...................................................................... OPER A TING P RE CAUTIONS Safety -1 ...................................................... MAINTENANCE [...]

  • Page 6

    ii 62- - 10458 - - 00 LIS T OF ILLU STR A TIONS FI GURE NUM BER Page Figure 1 Base Un it Interior D eta ils (T ypical) 1 ................................................ Figure 2 Unit Dimensions 5 ............................................................... Fi gur e 3 Horizont al Wheel C ent ering 5 ..............................................[...]

  • Page 7

    1 62- - 10458 - - 00 1. INT RODUCT I ON The 90M series single- - pac kage cooling units (See Figure 1) are de signed to provide air conditioning aboar d mar ine vesse ls and in industrial applica tions. The 90MA units are fitted with se a wate r c ooled conde nsers while the 90MF units are fitte d with fr esh water cooled c ondense rs. Both units a[...]

  • Page 8

    2 62- - 10458 - - 00 T abl e 1 90MA/ MF / MU Ph ysi cal Dat a - - Refri geran t 22 R - - 22 - - English U nits R- -2 2 - - Me t r i c U ni t s BASE UNIT 90MA/MF/M U UNITS Englis h ( Metr ic ) 204 206 208 212 204 206 208 212 NOMI NAL CAP ACITY T ons (k W) 3 5 7.5 10 10.5 17.6 26.4 35.1 OPERA TING WEIGHT Base Unit - - 90MA/M F Pounds (k g) 390 427 89[...]

  • Page 9

    3 62- - 10458 - - 00 T abl e 2 90MA/ MF / MU Ph ysi cal Dat a - - Refri geran t 407C R - - 407C - - Eng l ish Un i ts R - - 407C - - Met ric Un i ts BASE UNIT 90MA/MF/M U UNITS Englis h ( Metr ic ) 404 406 408 412 404 406 408 412 NOMI NAL CAP ACITY T ons (k W) 3 5 7.5 10 10.5 17.6 26.4 35.1 OPERA TING WEIGHT Base Unit - - 90MA/M F Pounds (k g) 390 [...]

  • Page 10

    4 62- - 10458 - - 00 T abl e 3 90MA/ MF Physi cal Data - - Ref rig eran t 134a R - - 134a - - Eng l ish Un i ts R - - 134a - - Metri c Uni ts BASE UNIT 90MA/M F UNITS Englis h ( Metr ic ) 308 312 308 312 NOMI NAL CAP ACITY T ons (k W) 5.5 8 19.3 28. 1 OPERA TING WEIGHT Base Unit Pounds (k g) 895 950 406 431 Dis c harge Plenum Pounds (k g) 50 50 22.[...]

  • Page 11

    5 62- - 10458 - - 00 UNIT 004 006 008,012 A B C 36.19( 919) 21.88( 556) 59.12( 1501) 48(1219) 29.62( 752) 69.50( 1765) D SEE NOTE 2 E 24(610) F G H J 13.81( 351) 13.13( 333) 0.75( 19) 12.5( 318) 16.44( 418) 15(381) 0.75( 19) 10.62( 270) 19.38( 492) 17.25( 438) 1.31( 33) 1 1.44(291) K L M N P Q R 17.06( 433) 20.50( 521) 17(432) 31.88( 810) 2.06( 52)[...]

  • Page 12

    6 62- - 10458 - - 00 90MA/M F004/ 006 UNI TS 90MU004/006 UNI T S 90MA/M U008/012 UNI T S 90MU008/012 UNI T S UNIT A* B* C* D* E F G 90MA/MF004 1/ 2 1/2 -- -- ¾ FPT -- -- -- -- 1.75 90MA/MF006 3/ 4 -- -- 3/4 -- -- -- -- (45) 90MA/MF008/012 1” 1” -- -- -- -- -- -- 90MU004 -- -- -- -- -- -- 1/2 flare 1/ 2 flare 90MU006 -- -- -- -- -- -- 1/2 flare[...]

  • Page 13

    7 62- - 10458 - - 00 T able 4 Re com me nded Line Size s, Re mote Conde nse r UNIT L ENG TH O F RUN (90MU) 0- -2 5 26 - - 50 51 - - 75 76 - - 100 ( ) DISCH LIQUID DIS CH 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) [...]

  • Page 14

    8 62- - 10458 - - 00 CONTROL WIRI NG - - On extende d voltage (208/230- - v) units, the control t ransf ormer is factor y wired for 208 - - v usage . If unit is to be used on 230- - v system, reconne ct primar y wiring on transfor mer . See F igure 13 (004/006 size) or Figure 15 (008/012 siz e). On a ll units, the thermosta t is fa ctory installe d[...]

  • Page 15

    9 62- - 10458 - - 00 switch T - - HIGH to ener gize liquid line solenoid (LLS) [to acti vat e the fu ll ev apor ator coi l and all co mp resso r cylinde rs]. If thermosta t switch T- - HIG H is not calling for cooling, power flows to e ner gize compressor unloader sole noid (US) [to unloa d compr essor cyli nd ers]. Whe n room temper ature fa lls t[...]

  • Page 16

    10 62- - 10458 - - 00 BEL T TENSION ADJUSTMENT - - S hut off unit power supply . Loosen fan motor from mounting bracke t. Do not loosen motor mounting bra cke t from unit. Move f an motor up or down until proper belt ten sion is a chieve d (appr oximate ly 3/4- - in. deflec tion with 8- - pound tension a t midpoint of belt spa n). Lubri cati on - -[...]

  • Page 17

    11 62- - 10458 - - 00 c. Re gulate flow to condense r with a supply line valve. If pump is a non - - overloading type , the valve may be fully close d while pump is running. For aver age scale deposit, allow solution to remain in condenser over- night. For heavy sca le de posit, allow 24 hours. d. Drain conde nser a nd flush with clea n water . Fig[...]

  • Page 18

    12 62- - 10458 - - 00 5.1 0 Eva porator Fa n Motor Re mov al a. S hut of f unit main powe r supply . W ARNI NG Lo ck op en an d tag u ni t d is con n ect before work in g o n fan mo tor . Remov e fu ses an d tak e them wi th you after n oti n g th is on tag. CAUTIO N Before attempti n g to remove fan motors or motor mounts, pl ace a p iece of p lyw[...]

  • Page 19

    13 62- - 10458 - - 00 BASED ON DRA WI NG 50BW 400093 USED ON A 004/006 SI ZE 40.25 52.00 B 22.00 27.31 C 38.25 50.00 D 36.25 48.00 E -- 1.25 F -- 45.50 G 18.005 23.31 H -- 0.75 J -- 25.81 K 3.18 -- L 2.56 -- M 8.75 -- N 2.00 -- P 1.00 -- R 5.00 9.00 S 7.50 6.00 T 15.00 16.50 V 10.00 15.38 W 0.70 -- 008/012 SI ZE A Figure 1 2 Mounting Ba se[...]

  • Page 20

    14 62- - 10458 - - 00 TB1- - 1 R B W FOR HO T WA TER /STEAM HEA T S EE NOTE 2 ORN (SEE NOTE 3) SUPPL Y POWER T- -LOW RED X2 X1 F RED RED TB1- - 5 TB1- - 4 YEL DPS BLU ORN SW SPS CL VIO GROUND L3 L2 G BLK 24VOLT TRAN IFC BLK 11 BLK BLU YEL 13 12 13 12 23 22 BLK 21 23 22 BLU YEL BRN CHR BRN BRN BRN BRN TB1- - 3 RED IFC BRN BRN GRN 3 2 T3 T1 T2 YEL IF[...]

  • Page 21

    15 62- - 10458 - - 00 H1 CONTROLLING HEA T CONT ACTOR TRANSFORMER SUCTION PRESSURE SWI TCH INTERNAL PROTECT OR- - COMPRESSOR INDOOR F AN MOTOR INDOOR F AN CONT ACTOR BACKUP HEA T CONT ACTOR TB H2 IPC IFM IFC SPS TRAN SW TERMINAL BOARD SWITCH COMPRESSOR CONT A CTOR COMPRESSOR LOCKOUT AUTOMA TIC CUT OUT DISCHARGE PRESSURE SWI TCH AC CC CL C F DPS FUS[...]

  • Page 22

    16 62- - 10458 - - 00 TB1- - 1 T- -HIG H R R 8 BLU BLK 90MA012 UN ITS ON L Y B W ORN B W 9 IPC CD T 2 BLK US BLK BLU CD T 1 2 OLA 1 BLU 2 OLB 1 FOR HO T WA TER /STEAM HEA T S EE NOTE 2 ORN (SEE NOTE 3) SUPPL Y POWER T- -LOW RED X2 X1 F RED RED TB1- - 5 YEL DPS BLU ORN SW CHR RED SPS 1 3 RED CL RED VIO GROUND L3 L2 G SEE NOTE 1 BLK 24VOLT TRAN BLU B[...]

  • Page 23

    17 62- - 10458 - - 00 OL OVER LOAD US UNLOADER SOLENOID H1 CONTROLLI NG HEA T CONT ACTOR TRANSFORMER SUCTION PRESSURE SWI TCH INTERNAL PROTECT OR- - COMPRESSOR INDOOR F AN MOTOR INDOOR F AN CONT ACTOR BACKUP HEA T CONT ACTOR TB H2 IPC IFM IFC SPS TRAN SW TERMINAL BOARD SWITCH COMPRESSOR CONT A CTOR COMPRESSOR LOCKOUT AUTOMA TIC CUT OUT DISCHARGE PR[...]

  • Page 24

    Index - - 1 62- - 10458 - - 00 A Access P anel , 9 Accesso ry Pl enu m, 1 Air Filte r , 5, 10 C Component Arr angeme nt, 15, 17 Condensate Drain, 7, 10 Condenser , 10 Condenser Connec tions, 6 Cran kcas e Heater , 12 Cycle- - Loc, 12 E Elect ri cal Co nnect io ns , 7 Evapora tor Coil, 10 F Fan Adjustme nt, 9 Fan Motor , 12 Fan Sh af t, 5 H Hea ting[...]