Carrier 50AW/AY/AX030 - Page 13

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Table 1 — Physical Data — 50AJ,AK,AW,AY Units
LEGEND †Sizes 020-040: Circuit 1 uses the lower portion of condenser coil, Circuit 2 uses the
upper portion.
Sizes 050-060: Circuit 1 uses the left condenser coil, Circuit 2 the right. All units have
intertwined evaporator coils.
UNIT 50AJ,AK,AW,AY 020 025 027 030
NOMINAL CAPACITY (tons)
20 25 27 30
BASE UNIT
See Operating Weights Table
OPERATING WEIGHT (lb)
COMPRESSOR
Quantity...Type (Ckt 1, Ckt 2)
2…SR*782AT/1…SR*782AE
1…SR*812AT,
1…SR*942AT/1…SR*942AE
2...SR*942AT/1…SR*942AE 2…SR*782AT/2…SR*812AT
Number of Refrigerant Circuits
22 22
Oil (oz) (Ckt 1, Ckt 2)
Precharged Precharged Precharged Precharged
REFRIGERANT TYPE
R-22
Operating Charge (lb-oz)
Circuit 1
26-8 32-0 34-0 27-8
Circuit 2
14-0 17-0 19-0 29-0
CONDENSER COIL†
Cross-Hatched
3
/
8
″
Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity
11 11
Rows...Fins/in.
2...15 3...15 3...15 4...15
Total Face Area (sq ft)
33.3 33.3 33.3 33.3
CONDENSER FAN
Propeller Type
Nominal Cfm
17,200 15,850 15,850 14,500
Quantity...Diameter (in.)
2...30 2...30 2...30 2...30
Motor Hp
11 11
EVAPORATOR COIL
Cross-Hatched Copper Tubes, Aluminum Plate Fins
Tu be Siz e ( i n . )
3
/
8
3
/
8
3
/
8
3
/
8
Rows...Fins/in.
3...15 3...15 4...15 4...5
Total Face Area (sq ft)
31.7 31.7 31.7 31.7
EVAPORATOR FAN
Centrifugal Type
Quantity...Size (in.)
2...20 X 15 2...20 X 15 2...20 X 15 2...20 X 15
Type Dr ive
Belt Belt Belt Belt
Nominal Cfm
8,000 10,000 11,000 12,000
Motor Hp
5 10 15 5 10 15 10 15 20 10 15 20
Motor Frame Size
184T 215T 254T 184T 215T 254T 215T 254T 256T 215T 254T 256T
Motor Bearing Type
Ball Ball Ball Ball
Maximum Allowable Rpm
1200 1200 1200 1200
Motor Pulley Pitch Diameter
4.8 4.4 5.7 4.8 6.1 5.5 4.4 4.9 5.9 4.4 5.7 5.9
Nominal Motor Shaft Diameter (in.)
1
1
/
8
1
3
/
8
1
5
/
8
1
1
/
8
1
3
/
8
1
5
/
8
1
3
/
8
1
5
/
8
1
5
/
8
1
3
/
8
1
5
/
8
1
5
/
8
Fan Pulley Pitch Diameter (in.)
12.4 8.6 9.1 12.4 11.1 8.7 9.4 8.1 8.7 9.5 9.1 8.7
Nominal Fan Shaft Diameter (in.)
1
15
/
16
1
15
/
16
1
15
/
16
1
15
/
16
Belt Quantity
112 1 1 2 2 22222
Belt Type
BX56 BX50 5VX530 BX56 5VX570 5VX530 BX50 5VX530 5VX530 BX50 5VX530 5VX530
Belt Length (in.)
56 63 53 56 57 53 50 50 53 50 53 53
Pulley Center Line Distance (in.)
16.0-18.7 15.6-18.4 15.0-17.9 15.6-18.4 15.6-18.4 15.0-17.9 15.6-18.4 15.0-17.9 15.0-17.9 15.6-18.4 15.0-17.9 15.0-17.9
Factory Speed Setting (rpm)
717 924 1096 773 962 1106 848 1059 1187 856 1096 1187
HIGH-PRESSURE SWITCH (psig)
Cutout
426 426 426 426
Reset (Auto.)
320 320 320 320
RETURN-AIR FILTERS
Quantity...Size (in.) Standard
10...20 x 24 x 2 10...20 x 24 x 2 10...20 x 24 x 2 10...20 x 24 x 2
Pleated
5... 20 x 20 x 4
5...20 x 24 x 4
5...20 x 20 x 4
5...20 x 24 x 4
5...20 x 20 x 4
5...20 x 24 x 4
5...20 x 20 x 4
5...20 x 24 x 4
OUTDOOR-AIR FILTERS
Quantity...Size (in.)
8...16 x 25 x 2
4...20 x 25 x 2
POWER EXHAUST
Direct Drive, Single-Phase Motors (Factory-Wired for High Speed Operation), Forward-Curved Fan Wheels with Backdraft Dampers on Each Fan
Housing
Motor, Quantity...Hp
4...1
Fan, Diameter...Width (in.)
11 x 10
Al —
Aluminum
Cu —
Copper