Carrier 50LJ - Manual (Page 5)

Table 1b — Physical Data, 50LJ/LW Units
BASE UNIT 50 LJ024 LW024
NOMINAL CAPACITY (tons) 20 20
OPERATING WEIGHT (lb)* 2565 2775
COMPRESSORS (2 each unit)
Capacity Steps (%)
Hermetric, 3600 Rpm
50, 100
REFRIGERANT
Operating Charge (lb), Sys 1/Sys 2
R-22 Controlled by Acutrol™ Metering Device
16.0/16.0
CONDENSER COILS
Face Area (sq ft)
Fins Per In. (Al)
3-Row, %-in. Tube Diameter
24.75
17.0
EVAPORATOR COILS
Face Area (sq ft)
Fins Per In.
4-Row, %-in. Tube Diameter
20.3
15
CONDENSER FANS (2 each unit)
Nominal Cfm
Nominal Hp
Propelier Type, 30-in. Diameter, 1140 Rpm
13,000
1.0
EVAPORATOR FANS (1 each unit)t
Nominal Cfm
Maximum Allowable Cfm
Maximum Allowable Rpm
Centrifugal Type, 18 x 15-in., 1.438 in. Fan Pulley Bore
8,000
10,000
1,200
Standard Motor and Drive
Motor Hp
Full Load Efficiency (%)
Motor Frame Size
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
1750 Rpm
5
84.3
184T
10.6
4.75
780
Optional Motor and Drive
Motor Hp
Full Load Efficiency (%)
Motor Frame Size
Fan Pulley Pitch Diameter (in.)
Motor Pulley Pitch Diameter (in.)
Resulting Fan Rpm
1750 Rpm
7.5
84.8
213T
80
4.12
900
Optional Power Exhaust**
Motors...Hp
Fans...Diameter (in.)
Propeller Tyi
1. 1
1...24
De, 1140 Rpm
Filters (Quantity...L x W xD)
20% Standard Efficiency Disposable
2...18
X
24
X
2
4 ..24
X
24
X
2
'Weights include economizer, but not rainhood. See Fig 1 for weights of options and accessories.
tStandard fan motor is supplied with standard fan drive, pulleys and belts Optional fan motor is supplied with op­
tional fan drive, pulleys, and belts Other combinations are field supplied.
"Optional unit-mounted power exhaust not available on Model 50LW. Accessory power exhaust may be duct mounted
on 50LW installation