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Table 1B — Physical Data — 48EJ,EK,EW,EY Units (cont)
*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 information, see Table 3.
**Rollout switch is manual reset.
NOTE: High heat is for 48EJ,EW only.
UNIT 48EJ,EK,EW,EY 034D/E 044D/E 048D/E
NOMINAL CAPACITY (tons) 35 40 45
OPERATING WEIGHT (lb) For Operating Weights see Table 2.
COMPRESSOR
Type Ckt 1 06D537 06EA250 06EA265
Ckt 2 06D537 06EA250 06EA250
Number of Refrigerant Circuits 22 2
Oil (oz) (Ckt 1, Ckt 2) 115 ea. 224 ea. 304, 224
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Circuit 1* 34-0 35-0 41-0
Circuit 2 34-0 35-0 41-0
CONDENSER COIL Cross-Hatched
3
/
8
″ Copper Tubes, Aluminum Lanced, Aluminum Pre-Coated, or Copper Plate Fins
Quantity 2211
Rows...Fins/in. 4...15 4...15 4...15 3...15
Total Face Area (sq ft) 58.3 58.3 66.7
CONDENSER FAN Propeller Type
Nominal Cfm 27,064 27,064 27,064
Quantity...Diameter (in.) 4...30 4...30 4...30
Motor Hp (1075 Rpm) 11 1
EVAPORATOR COIL Cross-Hatched
3
/
8
″ Copper Tubes, Aluminum Plate Fins, Intertwined Circuits
Rows...Fins/in. 3...15 3...15 4...15
Total Face Area (sq ft) 34.7 34.7 34.7
EVAPORATOR FAN Centrifugal Type
Quantity...Size (in.) 2...20x15 2...20x15 2...20x15
Type Drive Belt Belt Belt
Nominal Cfm 14,000 16,000 18,000
Motor Hp 10 15† 20 15 20† 25 20 25† 30
Motor Frame Size (Standard) S215T D254T S256T D254T S256T S284T S256T S284T S286T
(High Efficiency) S215T S254T S256T S254T S256T S284T S256T S284T S286T
Motor Bearing Type Ball Ball Ball
Maximum Allowable Rpm 1200 1200 1200
Motor Pulley Pitch Diameter 6.1 5.3 5.7 5.3 5.7 7.5 6.3 8.1 7.5
Nominal Motor Shaft Diameter (in.) 1
3
/
8
1
5
/
8
1
5
/
8
1
5
/
8
1
5
/
8
1
7
/
8
1
5
/
8
1
7
/
8
1
7
/
8
Fan Pulley Pitch Diameter (in.) 13.7 9.5 9.5 9.5 9.5 11.1 11.1 12.5 11.1
Nominal Fan Shaft Diameter (in.) 1
15
/
16
1
15
/
16
1
15
/
16
Belt, Quantity...Type 1...5VX610 2...5VX530 2...5VX550 2...5VX530 2...5VX550 2...5VX590 2...5VX570 2...5VX630 2...5VX590
Belt, Length (in.) 61 53 55 53 55 59 57 63 59
Pulley Center Line Distance (in.) 15.6-18.4 15.0-17.9 15.0-17.9 14.6-17.6 15.0-17.9 14.6-17.6
Factory Speed Setting (rpm) 779 976 1050 976 1050 1182 993 1134 1182
FURNACE SECTION
Rollout Switch Cutout Temp (F)** 225 225 225
Burner Orifice Diameter
(in. ...drill size)
Natural Gas Std .120...31 .120...31 .120...31
Liquid Propane Alt .096...41 .096...41 .096...41
Thermostat Heat Anticipator
Setting (amps)
Stage 1 0.1 0.1 0.1
Stage 2 0.1 0.1 0.1
Gas Input (Btuh) Stage 1 Low 303,500 303,500 303,500
High 607,000 607,000 607,000
Stage 2 Low 400,000 400,000 400,000
High 800,000 800,000 800,000
Efficiency (Steady State) (%) 82 82 82
Temperature Rise Range 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
Manifold Pressure (in. wg)
Natural Gas Std 3.5 3.5 3.5
Liquid Propane Alt 3.5 3.5 3.5
Gas Valve Quantity 22 2
Field Gas Connection Size
(in.-FPT) 1.5 1.5 1.5
HIGH-PRESSURE SWITCH (psig)
Cutout 426 426 426
Reset (Auto.) 320 320 320
LOW-PRESSURE SWITCH (psig)
Cutout 77 7
Reset (Auto.) 22 22 22
RETURN-AIR FILTERS (W x H x T)
Quantity...Size (in.) 10...20 x 24 x 2 10...20 x 24 x 2 10...20 x 24 x 2
OUTDOOR-AIR FILTERS 8...16 x 25 8...16 x 25 8...16 x 25
Quantity...Size (in.) 4...20 x 25 4...20 x 25 4...20 x 25
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