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UNIT 50EJ,EK,EW,EY
NOMINAL CAPACITY (tons)
OPERATING WEIGHT (lb)*
Unit
Al/Al†
Al/Cu†
Roof Curb (14-in. curb)
COMPRESSOR
Type
Ckt 1
Ckt 2
Number of Refrigerant Circuits
Oil (oz) (Ckt1, Ckt 2)
REFRIGERANT TYPE
Operating Charge (lb-oz)
Circuit 1**
Circuit 2
CONDENSER COIL
Quantity
Rows...Fins/in.
Total Face Area (sq ft)
CONDENSER FAN
Nominal Cfm
Quantity...Diameter (in.)
Motor Hp (1075 Rpm)
EVAPORATOR COIL
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR FAN
Quantity...Size (in.)
Type Drive
Nominal Cfm
Motor Hp
Motor Frame Size
Motor Bearing Type
Maximum Allowable Rpm
Motor Pulley Pitch Diameter
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in.)
Nominal Fan Shaft Diameter (in.)
Belt, Quantity...Type
Belt, Length (in.)
Pulley Center Line Distance (in.)
Factory Speed Setting (rpm)
HIGH-PRESSURE SWITCH (psig)
Cutout
Reset (Auto.)
LOW-PRESSURE SWITCH (psig)
Cutout
Reset (Auto.)
RETURN-AIR FILTERS
Quantity...Size (in.)
OUTDOOR-AIR FILTERS
Quantity...Size (in.)
POWER EXHAUST
Motor, Quantity...Hp
Fan, Diameter...Width (in.)
LEGEND
Al
— Aluminum
Cu — Copper
*Weight of unit does not include variable frequency drive (VFD), barometric relief, or power
exhaust. If a VAV unit (a VFD is installed), add the VFD weight in the table at right.
†Evaporator coil fin material/condenser coil fin material.
**Sizes 024-034: Circuit 1 uses the lower portion of condenser coil, Circuit 2 uses the upper
portion. Sizes 038-048: Circuit 1 uses the left condenser coil, Circuit 2 the right. All units
have intertwined evaporator coils.
††Motor and drive shown will deliver approximately 2.5 in. wg net external static. For more
drive information, see Table 2.
Table 1 — Physical Data
024
20
4016
4236
365
06D328
06D818
2
115, 88
25-0
31-0
Cross-Hatched
1
4...15
33.3
13,420
2...30
1
Cross-Hatched
4...15
31.7
2...20x15
Belt
8,000
5
10††
15
7.5
S184T
S215T
S254T
S213T
Ball
1200
4.6
6.6
6.9
4.9
1
1
⁄
1
3
⁄
1
5
⁄
1
8
8
8
11.1
12.5
11.1
11.1
1
11
⁄
16
1...BX59
1...BX60
1...5VX590
1...BX56
62
63
59
16.0-18.7 15.6-18.4
15.0-17.9
15.6-18.4 15.6-18.4
725
924
1088
773
426
320
7
22
10...20x24x2
8...16x25
4...20x25
Direct Drive, 3-Speed, Single-Phase Motor (Factory-Wired For High Speed) and Forward Curved Fan
028
25
4102
4322
365
06D328
06D328
2
115 ea.
R-22
25-0
25-0
3
⁄
Copper Tubes, Aluminum Lanced or Copper Fins
8
1
4...15
33.3
Propeller Type
13,420
2...30
1
3
⁄
Copper Tubes, Aluminum or Copper Plate Fins, Intertwined Circuits
8
4...15
31.7
Centrifugal Type
2...20x15
Belt
10,000
10††
15
10
S215T
S254T
S215T
Ball
1200
6.1
7.1
6.6
3
⁄
1
3
⁄
1
5
⁄
1
3
⁄
8
8
8
8
11.1
11.1
13.7
1
11
⁄
16
1...BX56
1...5VX590
1...BX62
59
59
59
65
15.0-17.9
15.6-18.4
962
1119
843
426
320
7
22
10...20x24x2
8...16x25
4...20x25
4...1
11...10
NOTES:
1. See Table 2 for evaporator fan motor data.
2. Sizes 038 and 048 are 50EJ,EW units only.
VFD
(Hp)
5
7.5
10
15
20
25
30
9
030
27
4102
4322
365
06D537
06D328
2
115 ea.
25-0
25-0
1
4...15
33.3
13,420
2...30
1
4...15
31.7
2...20x15
Belt
11,000
15††
20
10
S254T
S256T
S215T
Ball
1200
6.7
7.5
6.4
1
5
⁄
1
5
⁄
1
3
⁄
8
8
8
11.1
11.1
12.5
1
11
⁄
16
1...5VX590 1...5VX600
1...BX60
1...5VX590 1...5VX600
59
60
63
15.0-17.9
15.6-18.4
1056
1182
896
426
320
7
22
10...20x24x2
10...20x24x2
8...16x25
8...16x25
4...20x25
4...20x25
VFD WEIGHTS (lb)
208/230 v
460 v
20
22
51
37
51
61
61
63
63
111
105
112
172
118
034
30
4102
4322
365
06D537
06D537
2
115 ea.
25-0
25-0
1
4...15
33.3
13,420
2...30
1
4...15
31.7
2..20x15
Belt
12,000
15††
20
S254T
S256T
Ball
1200
6.9
7.5
1
5
⁄
1
5
⁄
8
8
11.1
11.1
1
11
⁄
16
59
60
15.0-17.9
1088
1182
426
320
7
22
575 v
60
64
64
109
109
174
180
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