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Carrier 90MA User Manual

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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
 
Liter
1.48
3.3
EVAPORATOR AIR FAN
 
Nominal Flow
 
m3/hr
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