Table 1 — Physical Data
UNIT 50EJQ,EWQ 024 028
NOMINAL CAPACITY (tons) 20 25
OPERATING WEIGHT (lb)*
Unit
Al/Al† 4168 4168
Al/Cu† 4388 4388
Roof Curb (14-in. curb) 365 365
COMPRESSOR
Type Ckt 1 06D824 06D328
Ckt 2 06D824 06D328
Number of Refrigerant Circuits 22
Oil (oz) (Ckt1, Ckt 2) 115 ea. 115 ea.
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Circuit 1** 32-2 33-3
Circuit 2 34-6 35-11
OUTDOOR COIL Cross-Hatched
3
⁄
8
9 Copper Tubes, Aluminum Lanced, Aluminum Precoated, or Copper Fins
Quantity 11
Rows...Fins/in. 4...15 4...15
Total Face Area (sq ft) 33.3 33.3
OUTDOOR FAN Propeller Type
Nominal Cfm 13,420 13,420
Quantity...Diameter (in.) 2...30 2...30
Motor Hp (1075 Rpm) 11
INDOOR COIL Cross-Hatched
3
⁄
8
9 Copper Tubes, Aluminum or Copper Plate Fins, Face Split
Rows...Fins/in. 4...15 4...15
Total Face Area (sq ft) 31.7 31.7
Expansion Device Acutrol™ Device
INDOOR FAN Centrifugal Type
Quantity...Size (in.) 2...20x15 2...20x15
Type Drive Belt Belt
Nominal Cfm 8,000 10,000
Motor Hp 5 10†† 15 7.5 10†† 15
Motor Frame Size (Standard) S184T S215T D254T S213T S215T D254T
(High Efficiency) S184T S215T S254T S213T S215T S254T
Motor Bearing Type Ball Ball
Maximum Allowable Rpm 1200 1200
Motor Pulley Pitch Diameter 4.8 4.4 5.7 5.4 6.1 5.5
Nominal Motor Shaft Diameter (in.) 1
1
⁄
8
1
3
⁄
8
1
5
⁄
8
1
3
⁄
8
1
3
⁄
8
1
5
⁄
8
Fan Pulley Pitch Diameter (in.) 12.4 8.6 9.1 12.4 11.1 8.7
Nominal Fan Shaft Diameter (in.) 1
15
⁄
16
1
15
⁄
16
Belt, Quantity...Type 1...BX59 2...BX51 2...5VX530 1...BX59 1...5VX590 2...5VX530
Belt, Length (in.) 62 54 53 62 59 53
Pulley Center Line Distance (in.) 16.0-18.7 15.6-18.4 15.0-17.9 15.6-18.4 15.6-18.4 15.0-17.9
Factory Speed Setting (rpm) 717 924 1096 773 962 1106
HIGH-PRESSURE SWITCH (psig)
Cutout 426 426
Reset (Auto.) 320 320
LOW-PRESSURE SWITCH (psig)
Cutout 77
Reset (Auto.) 22 22
RETURN-AIR FILTERS
Quantity...Size (in.) 10...20x24x2 10...20x24x2
OUTDOOR-AIR FILTERS
Quantity...Size (in.) 8...16x25 8...16x25
4...20x25 4...20x25
Fan, Diameter...Width (in.) 11...10
POWER EXHAUST Direct Drive, 3-Speed, Single-Phase Motor (Factory-Wired For High Speed) and Forward Curved Fan
Motor, Quantity...Hp 4...1
Fan, Diameter...Width (in.) 11...10
LEGEND
Al — Aluminum
Cu — Copper
*Weight of unit does not include barometric relief or power exhaust.
†Indoor coil fin material/outdoor coil fin material.
**Circuit 1 uses the upper portion of outdoor coil, Circuit 2 uses the
lower portion. Circuit 1 uses the lower portion of the indoor coil, Cir-
cuit 2 uses the upper portion.
††Motor and drive shown will deliver approximately 2.5 in. wg net
external static. For more drive information, see Table 2.
NOTE: See Table 2 for evaporator fan motor data.
6
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