Table 1 — Physical Data (cont)
UNIT 50HG |
|
| 024 |
| 028 | ||
VOLTAGE |
| 208/230 |
|
| 575 |
| ALL |
| and 460 |
|
|
| |||
|
|
|
|
|
|
| |
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 |
|
|
|
|
|
| |
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 |
| 71/2 |
Alt Motor Hp |
| 71/2 |
|
| 71/2 |
| 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 |
|
|
| |||
| Std motor/Alt drive |
|
|
| |||
| Alt motor/Std drive |
|
|
| |||
Motor Bearing Type | Alt motor/Alt drive |
|
|
| |||
| Ball |
|
| Ball |
| Ball | |
Maximum Allowable Rpm |
| 1400 |
|
| 1400 |
| 1400 |
Motor Pulley Pitch Diameter | Std motor/Std drive |
|
|
| |||
| Std motor/Alt drive |
|
|
| |||
| Alt motor/Std drive |
|
|
| |||
| Alt motor/Alt drive |
|
|
| |||
Motor Shaft Diameter (in.) | Standard | 11/8 |
|
| 11/8 |
| 13/8 |
Motor Shaft Diameter (in.) | Alternate | 13/8 |
|
| 13/8 |
| 13/8 |
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 |
Pulley center line distance (in.) | Alt motor/Alt drive | 1...BX...42 |
|
| 1...BX...42 |
| 2...BX...38 |
|
|
|
| ||||
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 |
Moveable pulley maximum (full turns | Alt motor/Alt drive | 34 |
|
| 34 |
| 36 |
| 6 |
|
| 6 |
| 6 | |
from closed position) |
|
|
|
|
|
|
|
Factory Pulley Setting |
|
|
|
|
|
|
|
(turns from closed position) |
| 3 |
|
| 3 |
| 3 |
Fan Shaft Diameter (in.) |
| 13/16 |
|
| 13/16 |
| 13/16 |
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 |
LEGEND
Bhp — Brake Horsepower
TXV — Thermostatic Expansion Valve
7