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Manufacturer reserves the right to discontinue, 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 PHYSICAL DATA – R-404A , SI UNITS
LEGEND
FPT = Female Pipe Thread MPT = Male Pipe Thread ODF = Outside Diameter Female
NOTES:
1. Motors other than those furnished with unit must be purchased separately. Contact your Carrier Marine representative
BASE UNIT (90MA/MU) UNITS 504 506 508 512
NOMINAL CAPACITY
kW 10.5 17.6 26.4 35.1
REFRIGERANT
OPERATING WEIGHT
Base unit 90MA kg 177 194 406 431
Base Unit 90MU
kg 150 163 379 404
Discharge Plenum
kg 11.3 11.3 22.7 22.7
COMPRESSOR TYPE
Qty Cylinders 4 6
Qty Unloading Cylinders
0 2
Qty Capacity Steps
1 2
DISCHARGE PRESSURE SWITCH
Opens (90MA)
kPa
Closes (90MA)
kPa
Opens (90MU)
kPa
Closes (90MU)
kPa
SUCTION PRESSURE SWITCH
Opens kPa
Closes
kPa
REFRIGERANT
Typ
Qty (90MA ONLY))
kg 1.4 2.4 5.1 4.5
CONDENSER (90MA ONLY)
Number...Type
Water Volume Lite
r
1.48 3.3
EVAPORATOR AIR FAN
Nominal Flow m3/h
r
1698 2830 4245 5660
Standard Speed Range
RPM 534-757 534-757 402-570 488-692
Maximum Allowable Speed
RPM
Belt Qty/Pulley Pitch Diameter
cm 1 / 16.3 1 / 16.3 1 / 21.6 1 / 17.8
Motor Pulley Pitch Diameter Range
cm
Motor Nominal Rating (@ 60Hz)…Frame Size
Standard
kW 0.25…56 0.56…56 0.75…56 1.5…56
Alternate (SeeNote 1)
kW 0.56…56 0.75…56 1.5…56 2.2…56
Alternate (See Note 1)
kW N/ N/ 2.2…56 N/
EVAPORATOR COIL
Tube
Qty Rows…Fin Spacing
Fins/cm 2…5.7 3…5.7
Face Area
m2 0.46 0.46 0.68 0.79
RETURN AIR FILTERS
Qty…Size cm
CONDENSER CONNECTIONS (90MA ONLY)
Water Inlet (bottom) Inches FPT 1/2 3/4 1 1
Water Outler (top)
Inches FPT 1/2 3/4 1 1
Maximum Working Pressure (Refrigerant Side) kPa
CONDENSATE DRAIN CONNECTIONS
Inches FPT
ACCESSORY ELECTRIC HEAT
Capacity @ 460 volts kW
Capacity @ 400 volts
kW
Number of Electric Heat Stages
R-
Scroll Semi-Hermetic, Recip
N/
N/
1
2725+/-69
2034+/-138
2937+/-48
2206+/-138
186+/-28
462+/-48
R-
1…Tube in Tube
9.2
Adjustable, Belt Driven Centrifugal: 1750 RPM Motor@60hz
1250
6.1 to 8.6 cm
3/8 OD, Copper Tubes, Aluminum Fin
Prime
3…4.9
Factory Supplied, Cleanable
4…40.6 x 50.8 x 2.5
2758
2…40.6 x 63.5 x 2.5
3/4
5.25 17.5
13.4
1 2
4.03