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Table 1 — Physical Data
LEGEND
UNIT 50HG 014 016 020
VOLTAGE
208/230
and 460
575
208/230
and 460
575
208/230
and 460
575
NOMINAL CAPACITY (Tons)
12.5 12.5 15 15 17.5 17.5
OPERATING WEIGHT (lb)
50 SERIES (Cooling Only)
2017 2017 2111 2111 2139 2139
COMPRESSOR
Quantity
2 23333
Number of Refrigerant Circuits
2 23333
Oil (ounces) Ckt A...Ckt B...Ckt C
72...72...NA 72...72...NA 68...68...68 68...68...68 68...68...72 68...68...72
REFRIGERANT TYPE
R-22
Expansion Device
TXV TXV TXV TXV TXV TXV
Operating Charge (lb)
Circuit A
19.6 19.6 13.2 13.2 13.1 13.1
Circuit B
18.3 18.3 12.2 12.2 12.7 12.7
Circuit C
NA NA 15.4 15.4 15.2 15.2
CONDENSER COIL
Rows...Fins/inch
2...17 2...17 2...17 2...17 2...17 2...17
TotalFacearea(sq.ft)
57.78 57.78 57.78 57.78 57.78 57.78
CONDENSER FAN
Nominal Cfm (Total, all fans)
14,000 14,000 14,000 14,000 14,000 14,000
Quantity...Diameter (in.)
4...22 4...22 4...22 4...22 4...22 4...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts input (Total)
1400 1400 1400 1400 1400 1400
EVAPORATOR COIL
Face Split
Rows...Fins/inch
3...15 3...15 3...15 3...15 3...15 3...15
TotalFacearea(sq.ft)
23.33 23.33 23.33 23.33 23.33 23.33
EVAPORATOR FAN
Quantity...Size
2...15x11 2...15x11 2...15x11 2...15x11 2...15x11 2...15x11
Type Drive
Belt Belt Belt Belt Belt Belt
Nominal Cfm
5000 5000 6000 6000 7000 7000
Std Motor Hp
3.7 3 3.7 3 5 5
Alt Motor Hp
55557
1
/
2
7
1
/
2
Motor Nominal Rpm
1725 1725 1725 1725 1725 1725
Std Maximum Continuous Bhp
4.25 3.45 4.25 3.45 5.75 5.75
Std Maximum Continuous Watts
3171 2574 3171 2574 4290 4290
Alt Maximum Continuous Bhp
5.75 5.75 5.75 5.75 8.63 8.63
Alt Maximum Continuous Watts
4290 4290 4290 4290 6438 6438
Motor Frame Size Standard
56HZ 56H 56HZ 56H S184T 184T
Motor Frame Size Alternate
S184T 184T S184T 184T S213T S213T
FanDrive Rpm Range Std motor/Std drive
485-613 472-619 618-789 609-778 658-808 658-808
Std motor/Altdrive
618-789 609-778 485-613 472-619 794-974 794-974
Alt motor/Stddrive
778-1021 778-1021 778-1021 778-1021 949-1145 949-1145
Alt motor/Altdrive
1000-1227 1000-1227 1000-1227 1000-1227 1126-1328 1126-1328
MotorBearing Type
Ball Ball Ball Ball Ball Ball
Maximum Allowable Rpm
1400 1400 1400 1400 1400 1400
Motor Pulley Pitch Diameter Std motor/Std drive
3.7-4.7 3.1-4.1 3.4-4.4 3.4-4.4 4.3-5.3 4.3-5.3
Std motor/Altdrive
3.4-4.4 3.4-4.4 3.7-4.7 3.1-4.1 4.3-5.3 4.3-5.3
Alt motor/Stddrive
3.1-4.1 3.1-4.1 3.1-4.1 3.1-4.1 5.4-6.6 5.4-6.6
Alt motor/Altdrive
4.3-5.3 4.3-5.3 4.3-5.3 4.3-5.3 5.5-6.5 5.5-6.5
Motor Shaft Diameter (in.) Standard
7
/
8
7
/
8
7
/
8
7
/
8
1
1
/
8
1
1
/
8
Motor Shaft Diameter (in.) Alternate
1
1
/
8
1
1
/
8
1
1
/
8
1
1
/
8
1
3
/
8
1
3
/
8
Belt, Quantity...Type...Length (in.) Std motor/Std drive
1...BX...51 1...BX...48 1...A...45 1...A...45 1...BX...46 1...BX...46
Std motor/Altdrive
1...A...45 1...A...45 1...BX...51 1...BX...48 1...BX...42 1...BX...42
Alt motor/Stddrive
1...BX...38 1...BX...38 1...BX...38 1...BX...38 1...BX...46 1...BX...46
Alt motor/Altdrive
1...B...38 1...B...38 1...B...38 1...B...38 1...BX...42 1...BX...42
Pulley center line distance (in.)
11.3-12.3 11.3-12.3 11.3-12.3 11.3-12.3 10.0-12.2 10.0-12.2
Speed change per full turn of moveable
pulley flange (rpm) Std motor/Std drive
21 25 29 28 25 25
Std motor/Altdrive
29 28 21 25 30 30
Alt motor/Stddrive
41 41 41 41 33 33
Alt motor/Altdrive
38 38 38 38 34 34
Moveable pulley maximum (full turns
6 66666
from closed position)
Factory Pulley Setting
(turns from closedposition)
3 33333
Fan Shaft Diameter (in.)
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
1
3
/
16
Factory Speed Setting (rpm)
549 546 704 694 733 733
HIGH PRESSURE SWITCHES (psig)
Cutout
426 426 426 426 426 426
Reset (Auto)
320 320 320 320 320 320
OUTDOOR AIR INLET SCREENS
Quantity...Size (in.)
3...20x25 3...20x25 3...20x25 3...20x25 3...20x25 3...20x25
RETURN AIR FILTERS
Quantity...Size (in.)
9...16x25 9...16x25 9...16x25 9...16x25 9...16x25 9...16x25
Bhp —
Brake Horsepower
TXV —
Thermostatic Expansion Valve