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Table 1 90MA/MF/MU Physical Data -- Refrigerant 22
R--22 -- English Units
R--22 -- Metric Units
BASE UNIT 90MA/MF/MU
UNITS
English (Metric)
204
206
208
212
204
206
208
212
NOMINAL CAPACITY
Tons (kW)
3
5
7.5
10
10.5
17.6
26.4
35.1
OPERATING WEIGHT
Base Unit -- 90MA/MF
Pounds (kg)
390
427
895
950
177
194
406
431
Base Unit -- 90MU
Pounds (kg)
330
360
835
890
150
163
379
404
Discharge Plenum
Pounds (kg)
25
25
50
50
11.3
11.3
22.7
22.7
COMPRESSOR TYPE
Welded Hermetic
Scroll
Semi--Hermetic
Reciprocating
Welded Hermetic
Scroll
Semi--Hermetic
Reciprocating
Quantity of Cylinders
--
--
4
6
--
--
4
6
Quantity of Unloading Cylinders
--
--
0
2
--
--
0
2
Quantity of Capacity Steps
--
--
1
2
--
--
1
2
DISCHARGE PRESSURE SWITCH
Opens -- 90MA/MF
psig (kPa)
395
10
2725
69
Closes -- 90MA/MF
psig (kPa)
295
20
2034
138
Opens -- 90MU
psig (kPa)
426
7
2937
48
Closes -- 90MU
psig (kPa)
320
20
2206
138
SUCTION PRESSURE SWITCH
Opens
psig (kPa)
27
4
186
28
Closes
psig (kPa)
67
7
462
48
OPERATING CHARGE -- 90MA/MF
pounds (kg)
3.1
5.3
11.2
10
1.4
2.4
5.1
4.5
CONDENSER -- 90MA/MF
Number & Type
1....Tube In Tube
Water Volume
gallon (liter)
0.39
0.86
2.42
1.48
3.3
9.2
EVAPORATOR AIR FAN
Adjustable, Belt Driven Centrifugal: 1750 RPM Motor @ 60 Hz
Nominal Flow
cfm (m
3
/h)
1200
2000
3000
4000
1698
2830
4245
5660
Standard Speed Range
RPM
525-750
647-915
495-700
600-850
427-652
593-762
412-583
500-708
Maximum Allowable RPM
1050
Belt Quantity / Pulley Pitch Diameter
inches (cm)
1 / 8.0
1 / 6.4
1 / 8.5
1 / 7.0
1 / 20.3 1 / 16.3 1 / 21.6 1 / 17.8
Motor Pulley Pitch Diameter Range
inches (cm)
2.4 to 3.4
6.1 to 8.6
Motor Nominal Rating(@60 Hz)...Frame Size
Standard
horse power
1/3...56 3/4...56
1...56
2...56
.25 / 56 .56 / 56 .75 / 56 1.5 / 56
Alternate (See Note 1)
horse power
3/4...56
1...56
2...56
3...56
.56 / 56 .75 / 56 1.5 / 56 2.2 / 56
Alternate (See Note 1)
horse power
----
----
3...56
----
----
----
2.2 / 56
----
EVAPORATOR COIL
3/8 (.95 cm) OD, Copper Tubes, Aluminum Fins
Tube Type
Prime
Quantity of Rows...fin Spacing
fins/inch(cm)
2...14.4 3...14.4
3...12.5
2...5.7
3...5.7
3...4.9
Face Area
sq ft (sq m)
5
5
7.3
8.5
0.46
0.46
0.68
0.79
RETURN AIR FILTERS
Factory Supplied, Cleanable
Quantity...Size
inches (cm)
2...16 x 25 x 1
4...16 x 20 x 1
2...40.6x63.5x2.5 4...40.6x50.8x2.5
CONDENSER CONNECTIONS
Water Inlet (bottom) & Outlet (top)
inches FPT
1/2
3/4
1
1
1/2
3/4
1
1
Maximum Working Pressure (refrigerant side)
psig (kPa)
400
2758
CONDENSATE DRAIN CONNECTIONS
inches FPT
3/4
3/4
ACCESSORY HEATING COILS
HOT WATER
Quantity of Rows...fin spacing
fins/inch(cm)
1...15
1...15
2...14
2...14
1...5.9
1...5.9
2...5.5
2...5.5
Face Area
sq ft (m)
5
5
6
6
0.46
0.46
0.56
0.56
Water Inlet (top) & Outlet Connection (bottom)
inches (cm)
7/8 ODF
1--1/4 MPT
7/8 ODF
1--1/4 MPT
STEAM
Quantity of Rows...fin spacing
fins/inch(cm)
See Note 2
1...14
1...14
See Note 2
1...5.5
1...5.5
Face Area
sq ft (m)
See Note 2
6.9
6.9
See Note 2
0.64
0.64
Water Inlet (top) & Outlet Connection (bottom)
inches (cm)
See Note 2
1--1/4 MPT
See Note 2
1--1/4 MPT
LEGEND
FPT = Female Pipe Thread
MPT = Male Pipe Thread
ODF = Outside Diameter Female
NOTES:
1. Motors and drives other than those furnished with unit must be purchased separately. Contact your Carrier Transicold represen-
tative.
2. Accessory heating coil in 004 and 006 units is combination hot water/steam. See hot water data.