Carrier 90MA Installation, Operating & Service Instructions page 2

TABLE 1A - 90MA/MU PHYSICAL DATA – R-134A , ENGLISH UNITS (See Table 2A for SI units)
BASE UNIT (90MA/MU)
NOMINAL CAPACITY
REFRIGERANT
OPERATING WEIGHT
Base unit 90MA
Base Unit 90MU
Discharge Plenum
COMPRESSOR TYPE
Qty Cylinders
Qty Unloading Cylinders
Qty Capacity Steps
DISCHARGE PRESSURE SWITCH
Opens (90MA)
Closes (90MA)
Opens (90MU)
Closes (90MU)
SUCTION PRESSURE SWITCH
Opens
Closes
REFRIGERANT
Typ
Qty (90MA ONLY))
CONDENSER (90MA ONLY)
Number...Type
Water Volume
EVAPORATOR AIR FAN
Nominal Flow
Standard Speed Range
Maximum Allowable Speed
Belt Qty/Pulley Pitch Diameter
Motor Pulley Pitch Diameter Range
Motor Nominal Rating (@ 60Hz)...Frame Size
Standard
Alternate (SeeNote 1)
Alternate (See Note 1)
EVAPORATOR COIL
Tube
Qty Rows...Fin Spacing
Face Area
RETURN AIR FILTERS
Qty...Size
CONDENSER CONNECTIONS (90MA ONLY)
Water Inlet (bottom)
Water Outler (top)
Maximum Working Pressure (Refrigerant Side)
CONDENSATE DRAIN CONNECTIONS
ACCESSORY ELECTRIC HEAT
Capacity @ 460 volts
Capacity @ 400 volts
Number of Electric Heat Stages
LEGEND
FPT = Female Pipe Thread
NOTES:
1. Motors other than those furnished with unit must be purchased separately. Contact your Carrier Marine representative
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.
UNITS
Pounds
Pounds
Pounds
Pounds
Gallons
Inches
Inches
Fins/Inch
Inches
Inches FPT
Inches FPT
Inches FPT
Watts
Watts
MPT = Male Pipe Thread
308
Tons 5.5
895
N/
50
4
0
1
PSIG
PSIG
PSIG
PSIG
PSIG
PSIG
11.2
Adjustable, Belt Driven Centrifugal: 1750 RPM Motor@ 60hz
CFM 3000
RPM 487-690
RPM
1 / 8.5
HP 1...56
HP 2...56
HP 3...56
3/8 OD, Copper Tubes, Aluminum Fin
Sq Ft 7.3
Factory Supplied, Cleanable
1
1
PSIG
ODF = Outside Diameter Female
90MA-3SI SUPERCEDES FORM 62-02971-00 09-2009
Pg 2
312
8
R-
950
N/
50
Semi-Hermetic, Recip
6
2
2
335+/-10
235+/-10
N/
N/
7+/-3
22+/-5
R-
10
1...Tube in Tube
2.42
4000
591-838
1250
1 / 7.0
2.4 to 3.4 inches
2...56
3...56
N/
Prime
3...12.5
8.5
4...16 x 20 x 1
1
1
400
3/4
17.5
13.4
2