Carrier 48AJ User Manual
Page 22
22
Table 1A — Physical Data — 48AJ,AK,AW,AY Units (cont)
LEGEND
*Sizes 020-030: Circuit 1 uses the lower portion of condenser coil, Circuit 2 uses the upper
portion.
Sizes 035-050: Circuit 1 uses the left condenser coil, Circuit 2 the right. All units have
intertwined evaporator coils.
†Rollout switch is manual reset.
NOTE: High heat is for 48AJ,AW only.
UNIT 48AJ,AK,AW,AY
035D/E
040D/E
050D/E
060D/E
NOMINAL CAPACITY (tons)
35
40
50
60
BASE UNIT OPERATING WEIGHT (lb)
See Operating Weights Table 2.
COMPRESSOR
Quantity...Type (Ckt 1 , Ckt 2)
2...06D537
1...06D537, 1...06EA250
2…06EA250
2...06EA265
Number of Refrigerant Circuits
2
2
2
2
Oil (oz) (Ckt 1 , Ckt 2)
115 ea.
115, 224
224 ea.
304 ea.
REFRIGERANT TYPE
Operating Charge (lb-oz)
Circuit 1
34-8
51-8
50-0
79-8
Circuit 2
34-8
49-8
50-0
79-8
CONDENSER COIL *
Cross-Hatched
3
/
8
" Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity
2
2
2
2
Rows...Fins/in.
3...15
4...15
4...15
4…15
Total Face Area (sq ft)
58.3
66.7
66.7
100
CONDENSER FAN
Propeller Type
Nominal Cfm
27,064
27,064
27,064
43,900
Quantity...Diameter (in.)
4...30
4...30
4...30
6...30
Motor Hp
1
1
1
1
EVAPORATOR COIL
Cross-Hatched Copper Tubes, Aluminum Plate Fins
Tube Size (in.)
3
/
8
1
/
2
1
/
2
1
/
2
Rows...Fins/in.
4...15
6...15
6...15
4...17
Total Face Area (sq ft)
34.7
31.3
31.3
48.1
EVAPORATOR FAN
Centrifugal Type
Quantity...Size (in.)
2...20 X 15
2...20 X 15
2...20 X 15
3...20 X 15
Type Drive
Belt
Belt
Belt
Belt
Nominal Cfm
14,000
16,000
20,000
24,000
Motor Hp
10
15
20
15
20
25
20
25
30
25
30
40
Motor Frame Size
215T
254T
256T
254T
256T
284T
256T
284T
286T
284T
286T
324T
Motor Bearing Type
Ball
Ball
Ball
Ball
Maximum Allowable Rpm
1200
1200
1300
1200
Motor Pulley Pitch Diameter
6.1
5.3
5.7
5.3
5.7
7.5
6.3
8.1
7.5
5.3
8.1
9.4
Nominal Motor Shaft Diameter (in.)
1
3
/
8
1
5
/
8
1
5
/
8
1
5
/
8
1
5
/
8
1
7
/
8
1
5
/
8
1
7
/
8
1
7
/
8
1
7
/
8
1
7
/
8
2
1
/
8
Fan Pulley Pitch Diameter (in.)
13.7
9.5
9.5
9.5
9.5
11.1
11.1
12.5
11.1
9.1
12.5
13.6
Nominal Fan Shaft Diameter (in.)
1
15
/
16
1
15
/
16
1
15
/
16
1
15
/
16
Belt Quantity
1
2
2
2
2
2
2
2
2
3
3
2
Belt Type
5VX610
5VX530
5VX550
5VX530
5VX550
5VX590
5VX570
5VX630
5VX590
5VX530
5VX630
5VX650
Belt Length (in.)
61
53
55
53
55
59
57
63
59
53
63
65
Pulley Center Line Distance (in.)
15.6-18.4
15.0-17.9
15.0-17.9
15.0-17.9
15.0-17.9
14.6-17.6
15.0-17.9
14.6-17.6
14.6-17.6
15.2-17.5
14.7-17.2
14.2-17.0
Factory Speed Setting (rpm)
779
976
1050
976
1050
1182
993
1134
1182
1019
1134
1214
FURNACE SECTION
Rollout Switch Cutout
Temp (F) †
225
225
225
225
Burner Orifice Diameter (in. ...drill size)
Natural Gas
Std
.120...31
.120...31
.120...31
.120...31
Liquid Propane
Alt
.096...41
.096...41
.096...41
.096...41
Thermostat Heat Anticipator Setting
Stage 1 (amps)
0.1
0.1
0.1
0.1
Stage 2 (amps)
0.1
0.1
0.1
0.1
Gas Input (Btuh)
Stage 1
300,000/600,000
300,000/600,000
300,000/600,000
582,000/ 873,000
Stage 2
400,000/800,000
400,000/800,000
400,000/800,000
776,000/1,164,000
Efficiency (Steady State) (%)
82
82
82
82
Temperature Rise Range
10-40/30-60
10-40/30-60
10-40/30-60
10-40/30-60
Manifold Pressure (in. wg)
Natural Gas
Std
3.5
3.5
3.5
3.3
3.3
Liquid Propane
Alt
3.5
3.5
3.5
Gas Valve Quantity
2
2
2
3
HIGH-PRESSURE SWITCH (psig)
Cutout
426
426
426
426
Reset (Auto.)
320
320
320
320
LOW-PRESSURE SWITCH (psig)
Cutout
27
27
27
27
Reset (Auto.)
67
67
67
67
RETURN-AIR FILTERS
Quantity...Size (in.)
10...20 x 24 x 2
10...20 x 24 x 2
10...20 x 24 x 2
16...20 x 24 x 2
OUTDOOR AIR FILTERS
8...16 x 25
8...16 x 25
8...16 x 25
12...16 x 25
Quantity...Size (in.)
4...20 x 25
4...20 x 25
4...20 x 25
6...20 x 25
Al
—
Aluminum
Bhp —
Brake Horsepower
Cu
—
Copper