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Carrier 90MA manual

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Table of contents for the manual

  • Page 1

    90MA/MU Single-Package Marine Cooling Units Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 1 Installation, Operation and Service Instructions SAFETY CONSIDERATIONS The 90MA/MU Units ar[...]

  • Page 2

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 2 TABLE 1A - 90MA /MU PHYSICAL DA TA – R-134A , ENGLISH UNITS (See Table 2A for SI units) LEGEND FPT = Female Pipe T hread MPT = Male P[...]

  • Page 3

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 3 TABLE 1B - 90MA /MU PHYSICA L DATA – R-407C , ENGLISH UNITS (See Table 2B for SI units) LEGEND FPT = Female Pipe T hread MPT = Male P[...]

  • Page 4

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 4 TABLE 1C - 90MA /MU PHYSICA L DATA – R-404A , ENGLISH UNITS (See Table 2C for SI units) LEGEND FPT = Female Pipe T hread MPT = Male P[...]

  • Page 5

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 5 TABLE 2A - 90MA /MU PHYSICAL DA TA – R-134A , SI UNITS LEGEND FPT = Female Pipe T hread MPT = Male Pi pe Thread ODF = Outside Diamete[...]

  • Page 6

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 6 TABLE 2B - 90MA /MU PHYSICA L DATA – R-407C , SI UNITS LEGEND FPT = Female Pipe T hread MPT = Male Pi pe Thread ODF = Outside Diamete[...]

  • Page 7

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 7 TABLE 2C - 90MA /MU PHYSICA L DATA – R-404A , SI UNITS LEGEND FPT = Female Pipe T hread MPT = Male Pi pe Thread ODF = Outside Diamete[...]

  • Page 8

    FIGURE 1 - BA SE UNIT INTERIOR DETAILS (TYPICA L UNIT SHOWN) Step 4 - Rig and Place Unit - NOTE: Install accessories before placing unit. a. Provide space around unit for service, filter access, and overhead clearance as indicated in Figure 2. b. Move and store unit in upright position. c. Use slings with spacer under base skid to prevent panel dam[...]

  • Page 9

    DIMENSION “D” MUST BE EQUAL ALL AROUND FIGURE 3 - HORIZONTA L WHEEL CENTERING FIGURE 4 - CONCENTRIC WHEEL A LIGNMENT Step 6 – Check Fan Shaft and W heel Alignme nt - HORIZONTAL WHEEL CENT ERING - All wheels must be horizontally centered betw een the inside edges of their fan scroll ventures (Figure. 3). Adjust as follows: a. Loosen set screws[...]

  • Page 10

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 10 a. Route regulating valve capilla ry w ith its flare nut to the fitting on refrigerant discharge line (Figure. 1), using any convenien[...]

  • Page 11

    TA BLE 3 - RECOMMENDED LINE SIZ ES (INCHES) REMOTE CONDENSERS DISCH LIQ UID DISCH LIQUID DISCH LIQUID DISCH LIQ UID 404 R-407C 1/2 3/8 5/8 3/8 5/8 3/ 8 5/8 3/8 406 R-407C 5/8 3/8 3/4 3/8 3/4 3/ 8 3/4 3/8 408 R-407C 3/4 1/2 3/4 1/2 7/8 1/ 2 7/8 1/2 412 R-407C 7/8 1/2 7/8 1/2 7/8 1/2 1-1/8 5/8 504 R-404A 5/8 3/8 5/8 3/8 3 /4 3/8 3/4 3/8 506 R-404A 3/[...]

  • Page 12

    Step 12 - Make Electrical Connections GENERAL - Provide an adequate fused disconnect switch within sight of the unit. Provision for locking sw itch open (OFF) is advisable to prevent power from being turned on when unit is being serviced. POWER WIRING - Conduit opening for all units is on left side of unit near control box. Connect field power w ir[...]

  • Page 13

    SERVICE WARNING NEVER reach into unit while fan is running. LOCK OPEN AND TAG unit disconnect before working on fan. Remove fuses and take them with you after noting this on tag . CAUTION 1. Sharp edges of coil fins are exposed. To prevent injury, cover top of evaporator with cardboard or a few layers of heavy tape. 2. To avoid coil damage, cover e[...]

  • Page 14

    Eva porator Coil - Observe fan compartment Caution note at the beginning of the Service section. Remove dirt and debris from evaporator coil as required by condition. Clean coil w ith a stiff brush, vacuum cleaner or compressed air. Use a fin comb of the correct tooth spacing (Refer to Tables 1A/B/C/2A/B/C for coil fins/inch) when straightening mas[...]

  • Page 15

    Charging the System (90MA) - These units are shipped with a full operating charge. If recharging is necessary (complete charge lost), wei gh in amount of refrigerant indicated on unit nameplate and in Table 1. If unit has partial charge, it must be recharged by removing existing charge and recharging by w eighing in the required amount of refr iger[...]

  • Page 16

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 16 compressor equipped units and on the suction line on all other units. Oil Charge - All units are factory charged w ith oil. On 06D com[...]

  • Page 17

    FOR NOTES AND LEGEND, SEE FIGURE 13 FIGURE 12 WIRING SCHE MATIC - 90MA/MU*04/*06 Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 17[...]

  • Page 18

    FIGURE 13 COMPONENT ARRA NGEMENT - 90MA/MU*04/*06 Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 18[...]

  • Page 19

    FOR NOTES AND LEGEND, SEE FIGURE 15 FIGURE 14 - ELECTRICAL SCHEMATIC - 90MA/MU*08/*12 Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 19[...]

  • Page 20

    FIGURE 15 - COMPONENT ARRANGEMENT - 90MA/MU008/012 Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 20[...]

  • Page 21

    FIGURE 16 – MOUNTING BASE ASSEMBLY – 90MA/MU*04/*06 Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 21[...]

  • Page 22

    Manufacturer reserves the right to discont inue, or change at any time, specifications or designs without notice and without incurring obligations Printed in U.S.A. 90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009 Pg 22 FIGURE 17 – MOUNTING BASE ASSEMBLY – 90MA/MU*08/*12[...]