Filter
Top Products
25
Table 1B — Physical Data — 48EJ,EK,EW,EY Units (cont)
*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 pressure. For more information see Table 3.
**Rollout switch is manual reset.
NOTE: High heat is for 48EJ,EW.
UNIT 48EJ,EK,EW,EY 054D/E 058D/E 064D/E 068D/E
NOMINAL CAPACITY (tons) 50 55 60 65
OPERATING WEIGHT (lb) For Operating Weights see Table 2.
COMPRESSOR
Quantity...Type (Ckt 1, Ckt 2) 1...06EA265, 1...06EA250 1...06EA275, 1...06EA250 1...06EA275, 1...06EA265 2...06EA275
Number of Refrigerant Circuits 2222
Oil (oz) (Ckt 1, Ckt 2) 304, 224 304, 224 304, 304 304, 304
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Circuit 1* 50-11 57-0 68-0 81-0
Circuit 2 46-8 48-6 68-0 73-0
CONDENSER COIL Cross-Hatched
3
/
8
″-in. Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity 1 1 1 1 2 2
Rows...Fins/in. 3...15 2...15 3...15 2...15 3...15 4...15
Total Face Area (sq ft) 66.6 100.0 100 100
CONDENSER FAN Propeller Type
Nominal Cfm 30,000 43,900 43,900 43,900
Quantity...Diameter (in.) 4...30 6...30 6...30 6...30
Motor Hp (1075 Rpm) 1111
EVAPORATOR COIL Cross-Hatched
1
/
2
″-in. Copper Tubes, Aluminum Plate Fins, Intertwined Circuits
Rows...Fins/in. 4...17 4...17 4...17 4...17
Total Face Area (sq ft) 45.0 45.0 48.1 48.1
EVAPORATOR FAN Centrifugal Type
Quantity...Size (in.) 3...20x15 3...20x15 3...20x15 3...20x15
Type Drive Belt Belt Belt Belt
Nominal Cfm 20,000 22,000 24,000 26,000
Motor Hp 15 20† 25 20 25† 30 25 30† 40 25 30† 40
Motor Frame Size S254T S256T S284T S256T S284T S286T S284T S286T S324T S284T S286T S324T
Motor Bearing Type Ball Ball Ball Ball
Maximum Allowable Rpm 1200 1200 1200 1200
Motor Pulley Pitch Diameter 4.7 6.1 8.1 5.9 6.7 7.5 5.3 8.1 9.4 6.7 5.9 9.4
Nominal Motor Shaft Diameter (in.) 1
5
/
8
1
5
/
8
1
7
/
8
1
5
/
8
1
7
/
8
1
7
/
8
1
7
/
8
1
7
/
8
2
1
/
8
1
7
/
8
1
7
/
8
2
1
/
8
Fan Pulley Pitch Diameter (in.) 11.1 11.1 12.5 11.1 11.1 11.1 9.1 12.5 13.6 12.5 9.5 13.6
Nominal Fan Shaft Diameter (in.) 1
15
/
16
1
15
/
16
1
15
/
16
1
15
/
16
Belt, Quantity...Type 2...5VX550 2...5VX570 2...5VX630 2...5VX570 2...5VX590 2...5VX590 3...5VX530 2...5VX630 2...5VX650 2...5VX610 3...5VX550 2...5VX650
Length (in.) 55 57 63 57 59 59 53 63 65 61 55 59
Pulley Center Line Distance (in.) 15.2-17.5 15.2-17.5 14.7-17.2 15.2-17.5 14.7-17.2 14.7-17.2 14.7-17.2 14.7-17.2 14.2-17.0 14.7-17.2 14.7-17.2 14.3-17.0
Factory Speed Setting (rpm) 741 962 1134 930 1056 1182 1019 1134 1214 938 1087 1214
FURNACE SECTION
Rollout Switch Cutout Temp (F)** 225 225 225 225
Burner Orifice Diameter
(in. ...drill size)
Natural Gas Std .120...31 .120...31 .120...31 .120...31
Liquid Propane Alt .096...41 .096...41 .096...41 .096...41
Thermostat Heat Anticipator
Setting (amps)
Stage 1 0.1 0.1 0.1 0.1
Stage 2 0.1 0.1 0.1 0.1
Gas Input (Btuh) Stage 1 441,000/ 873,000 441,000/ 873,000 441,000/ 873,000 441,000/ 873,000
Stage 2 662,400/1,164,000 662,400/1,164,000 662,400/1,164,000 662,400/1,164,000
Efficiency (Steady State) (%) 82 82 82 82
Temperature Rise Range 10-40/30-60 10-40/30-60 10-40/30-60 10-40/30-60
Gas Pressure to Unit Range (in. wg) 5 - 13.5 5 - 13.5 5 - 13.5 5 - 13.5
Manifold Pressure (in. wg)
Natural Gas Std 3.3 3.3 3.3 3.3
Liquid Propane Alt 3.3 3.3 3.3 3.3
Gas Valve Quantity 3333
Field Gas Connection Size
(in.-FPT) 2.5 2.5 2.5 2.5
HIGH-PRESSURE SWITCH (psig)
Cutout 426 426 426 426
Reset (Auto.) 320 320 320 320
LOW-PRESSURE SWITCH (psig)
Cutout 7777
Reset (Auto.) 22 22 22 22
RETURN-AIR FILTERS (W x H x T)
Quantity...Size (in.) 16...20 x 24 x 2 16...20 x 24 x 2 16...20 x 24 x 2 16...20 x 24 x 2
OUTDOOR-AIR FILTERS 12...16 x 25 12...16 x 25 12...16 x 25 12...16 x 25
Quantity...Size (in.) 6...20 x 25 6...20 x 25 6...20 x 25 6...20 x 25
POWER EXHAUST Direct Drive, 3-Speed, Single-Phase Motor (Factory-Wired for High Speed) and Forward Curved Fan
Motor, Quantity...Hp 6...1
Fan, Diameter...Width (in.) 11...10