Table 1 -- Physical Data
016D/F
UNIT 48TJ 020D/F 024D/F 028D/F
208/230, 460 v I 575 v
NOMINAL CAPACITY (tons) 15 18 20 25
OPERATING WEIGHT (Ib) 1650 1800 1850 2000
Economizer 90 90 90 90
Roof Curb 200 200 200 200
COMPRESSOR Scroll
1...SM120, 1...SM120, 1...SM161,
Quantity,.,Model (Ckt 1, Ckt 2) 2_.SR*942AE 1_.SR*782AE 1._SM110 1_.SM120
Number of Refrigerant Circuits 2 2 2 2
Oil (oz) (Ckt 1, Ckt 2) 90, 90 110, 72 110,110 112, 110
Stages of Capacity Control (%) 50/50 60/40 52/48 56/44
REFRIGERANT TYPE R-22
Expansion Device TXV
Operating Charge (Ib-oz)
c,rcu,t,* 10-13 I 15-2I 16-3 I 21-0Circuit 2 10-5 11-5 14-8 15-4
CONDENSER COIL Cross-Hatched 3/8-in. Copper Tubes, Aluminum Lanced,
Aluminum Pre-Coated, or Copper Plate Fins
Rows...Fins/in. 2...17 I 3_.15 I 3...15 I 4...15
Total Face Area (sq ft) 21.7 21.7 21.7 21.7
CONDENSER FAN Propeller Type
Nominal Cfm 10,400 9300 13,700 12,500
Quantity,..Diameter (in.) 3...22 3..,22 2...30 2...30
Motor Hp...Rpm V2...1050 V2._1050 1..,1075 1.,.1075
Watts Input (Total) 1100 1100 3400 3400
EVAPORATOR COIL Cross-Hatched 3/8-in. Copper Tubes, Aluminum Lanced or
Copper Plate Fins, Face Split
2...17 I 3...15 I 3_.15 I 4_.15
17.5 17.5 17.5 17.5
Centrifugal Type
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR FAN
Quantity...Size (in.)
Type Drive
Nominal Cfm
Motor Hp
Motor Nominal Rpm
Maximum Continuous Bhp
Motor Frame Size
Nominal Rpm High/Low
Fan r/s Range
Motor Bearing Type
Maximum Allowable Rpm
Motor Pulley Pitch Diameter
Min/Max (in.)
Low-Medium Static
High Static
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in,)
Nominal Fan Shaft Diameter (in,)
Belt, Quantity...Type...Length (in.)
Pulley Center Line Distance (in.)
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full Turns
From Closed Position
Factory Speed
Factory Speed Setting (rpm)
Low-Medium Static
High Static
Low-Medium Static
High Static
Low-Medium Static
High Static
Low-Medium Static
High Static
Low-Medium Static
High Static
Fan Shaft Diameter at Pulled/lin.t
LEGEND
Bhp -- Brake Horsepower
TXV -- Thermostatic Expansion Valve
*Circuit 1 uses the lower portion of condenser coil and lower portion of evap-
orator coils; and Circuit 2 uses the upper portion of both coils.
tRollout switch is manual reset.
2,..10 x 10
Belt
6000
3.7
1725
4.25
56H
891-1179
1227-1550
Ball
1550
3.1/4.1
3.7/4.7
7/8
6.0
5.2
13/16
1,..BX_,42
1,..BX_,42
13.5-15.5
48
55
5
3.5
1035
1389
13/16
2,.,10 x 10
Belt
6000
3,0
1725
3,45
56H
1159-1429
Ball
1550
4.3/5,3
7&
6,4
13/16
1,..BX..,45
13.5-15.5
44
2...12 x 12
Belt
7200
5
1745
5.90
184T
910-1095
1069-1287
Ball
1550
4.9/5.9
4.9/5.9
1V8
9,4
8,0
17/16
1.-BX,..50
1.-BX-.48
13.3-14.8
37
34
2...12 x 12
Belt
8000
7.5
1745
8.7 [208/230,575 v]
9.5 [460 v]
213T
1002-1225
1193-1458
Ball
1550
5,4/6,6
5,4/6,6
13/8
9.4
7.9
17/16
1-.BX-.54
1...BX-.50
14.6-15,4
37
44
2._12x12
Belt
10,000
10
1740
10.2 [208/230, 575 v]
11,8 [460 v]
215T
1066-1283
1332-1550
Ball
1550
4,9/5.9
4,9/5.9
lS/s
8.0
6,4
17/16
2..,BX,..50
2..,BX,..47
14.6-15,4
36
45
5 5 5 5
3.5 3.5 3.5 3.5
1296 1002 1120 1182
-- 1178 1328 1470
13/16 17/16 17/16 17/16
**The 48TJ028 units requires 2-in. industrial-grade filters capable of handling
face velocities of up to 625 ft/min (such as American Air Filter no. 5700 or
equivalent).
NOTE: The 48TJ016-028 units have a low-pressure switch (standard) located
on the suction side.