7table 1 — physical data (cont) – Carrier 50HG014-028 User Manual
Page 7
7
Table 1 — Physical Data (cont)
LEGEND
UNIT 50HG
024
028
VOLTAGE
208/230
and 460
575
ALL
NOMINAL CAPACITY (Tons)
20
20
25
OPERATING WEIGHT (lb)
50 SERIES (Cooling Only)
2187
2187
2446
COMPRESSOR
Quantity
3
3
2
Number of Refrigerant Circuits
3
3
2
Oil (ounces) Ckt A...Ckt B...Ckt C
72...72...72
72...72...72
110...110...NA
REFRIGERANT TYPE
R-22
Expansion Device
TXV
TXV
TXV
Operating Charge (lb)
Circuit A
13.8
13.8
23.9
Circuit B
13.9
13.9
21.5
Circuit C
15.5
15.5
NA
CONDENSER COIL
Rows...Fins/inch
2...17
2...17
2...17
Total Face Area (sq. ft)
57.78
57.78
66.67
CONDENSER FAN
Nominal Cfm (Total, all fans)
14,000
14,000
21,000
Quantity...Diameter (in.)
4...22
4...22
6...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts input (Total)
1400
1400
2100
EVAPORATOR COIL
Face Split
Rows...Fins/inch
4...15
4...15
4...15
Total Face Area (sq. ft)
23.33
23.33
27.22
EVAPORATOR FAN
Quantity...Size
2...15x11
2...15x11
2...15x11
Type Drive
Belt
Belt
Belt
Nominal Cfm
8000
8000
10,000
Std Motor Hp
5
5
7
1
/
2
Alt Motor Hp
7
1
/
2
7
1
/
2
10
Motor Nominal Rpm
1725
1725
1725
Std Maximum Continuous Bhp
5.75
5.75
8.63
Std Maximum Continuous Watts
4290
4290
6438
Alt Maximum Continuous Bhp
8.63
8.63
11.50
Alt Maximum Continuous Watts
6438
6438
8579
Motor Frame Size
Standard
S184T
184T
S213T
Motor Frame Size
Alternate
S213T
S213T
S215T
Fan Drive Rpm Range
Std motor/Std drive
658-808
658-808
799-965
Std motor/Alt drive
794-974
794-974
939-1152
Alt motor/Std drive
949-1145
949-1145
945-1187
Alt motor/Alt drive
1126-1328
1126-1328
1152-1366
Motor Bearing Type
Ball
Ball
Ball
Maximum Allowable Rpm
1400
1400
1400
Motor Pulley Pitch Diameter
Std motor/Std drive
4.3-5.3
4.3-5.3
5.4-6.6
Std motor/Alt drive
4.3-5.3
4.3-5.3
4.2-5.2
Alt motor/Std drive
5.4-6.6
5.4-6.6
4.2-5.2
Alt motor/Alt drive
5.5-6.5
5.5-6.5
5.2-6.2
Motor Shaft Diameter (in.)
Standard
1
1
/
8
1
1
/
8
1
3
/
8
Motor Shaft Diameter (in.)
Alternate
1
3
/
8
1
3
/
8
1
3
/
8
Belt, Quantity...Type...Length (in.)
Std motor/Std drive
1...BX...46
1...BX...46
1...BX...50
Std motor/Alt drive
1...BX...42
1...BX...42
2...AX...38
Alt motor/Std drive
1...BX...46
1...BX...46
2...BX...38
Alt motor/Alt drive
1...BX...42
1...BX...42
2...BX...38
Pulley center line distance (in.)
10.0-12.2
10.0-12.2
9.6-12.0
Speed change per full turn of moveable
pulley flange (rpm)
Std motor/Std drive
25
25
28
Std motor/Alt drive
30
30
36
Alt motor/Std drive
33
33
40
Alt motor/Alt drive
34
34
36
Moveable pulley maximum (full turns
6
6
6
from closed position)
Factory Pulley Setting
(turns from closed position)
3
3
3
Fan Shaft Diameter (in.)
1
3
/
16
1
3
/
16
1
3
/
16
Factory Speed Setting (rpm)
733
733
882
HIGH PRESSURE SWITCHES (psig)
Cutout
426
426
426
Reset (Auto)
320
320
320
OUTDOOR AIR INLET SCREENS
Quantity...Size (in.)
3...20x25
3...20x25
3...20x25
RETURN AIR FILTERS
Quantity...Size (in.)
9...16x25
9...16x25
9...20x25
Bhp — Brake Horsepower
TXV — Thermostatic Expansion Valve