Table 1B Ð Physical Data; 054-074 Units
BASE UNIT* | 054 |
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| 064 |
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| 074 | ||||||
NOMINAL CAPACITY (tons) |
| 50 |
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| 60 |
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| 75 | |||
OPERATING WEIGHT (lb) |
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Base Unit |
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48 Series, Low Heat | 8700 |
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| 9000 |
|
| 9420 | ||||||
48 Series, High Heat | 8820 |
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| 9120 |
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| 9550 | ||||||
50 Series, Horizontal Discharge | 8250 |
|
| 8550 |
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| 8970 | ||||||
50 Series, Vertical Discharge | 7700 |
|
| 8000 |
|
| 8430 | ||||||
With Economizer |
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48 Series, Low Heat | 9230 |
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| 9530 |
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| 9950 | ||||||
48 Series, High Heat | 9350 |
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| 9650 |
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| 10,080 | ||||||
50 Series, Horizontal Discharge | 8780 |
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| 9080 |
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| 9500 | ||||||
50 Series, Vertical Discharge | 8230 |
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| 8530 |
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| 8960 | ||||||
COMPRESSORS |
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Quantity...Type | 2...06E |
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| 2...06E |
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| 2...06E | ||||||
Capacity Steps (%) | 20, 40, 60, 80, 100 |
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| 17, 33, 50, 66, 83, 100 |
| 14, 28, 43, 71, 85, 100 | |||||||
Number of Refrigerant Circuits |
| 2 |
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| 2 |
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| 2 | |||
REFRIGERANT |
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Operating Charge (lb), Sys 1/Sys 2 |
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Without Hot Gas Bypass | 59.0/44.5 |
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| 61.0/61.0 |
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| 70.5/64.5 | ||||||
With Hot Gas Bypass | 62.0/44.5 |
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| 64.0/61.0 |
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| 73.5/64.5 | ||||||
CONDENSER COILS |
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Quantity |
| 4 |
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| 4 |
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| 4 | |||
Rows...Fins/in. |
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Aluminum | 2...17.0, 3...17.0 |
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| 3...17.0 |
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| 3...17.0 | ||||||
Copper (Optional) | 2...15.7, 3...15.7 |
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| 3...15.7 |
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| 3...15.7 | ||||||
Total Face Area (sq ft) | 72.4 |
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| 72.4 |
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| 108.4 | ||||||
EVAPORATOR COILS |
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Quantity |
| 2 |
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| 2 |
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| 2 | |||
Rows...Fins/in. | 3...17.0 |
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| 4...17.0 |
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| 4...17.0 | ||||||
Total Face Area (sq ft) | 61.5 |
|
| 61.5 |
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| 61.5 | ||||||
Refrigerant Feed Device... | TXV...2 |
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| TXV...2 |
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| TXV..2 | ||||||
No. per Circuit |
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HEATING SECTION (48 Series Units Only) | Low Heat |
| High Heat |
| Low Heat |
| High Heat |
| Low Heat |
| High Heat | ||
Number of Heat Exchangers | 12 |
| 18 |
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| 12 |
| 18 |
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| 12 |
| 18 |
Input (MBtuh) | 540 |
| 810 |
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| 540 |
| 810 |
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| 540 |
| 810 |
Output (MBtuh) | 432 |
| 648 |
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| 432 |
| 648 |
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| 432 |
| 648 |
Temperature Rise Range (F) |
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Efficiency (%) | 80 |
| 80 |
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| 80 |
| 80 |
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| 80 |
| 80 |
Burner Ori®ce Diameter |
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Quantity (in. ...drill no.) | 12 (.1285...30) |
| 18 (.1285...30) |
| 12 (.1285...30) |
| 18 (.1285...30) |
| 12 (.1285...30) |
| 18 (.1285...30) | ||
Pilot Ori®ce Diameter |
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Quantity (in. ...drill no.) | 2 (.076...48) |
| 3 (.076...48) |
| 2 (.076...48) |
| 3 (.076...48) |
| 2 (.076...48) |
| 3 (.076...48) | ||
Firing Stages | 2 |
| 2 |
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| 2 |
| 2 |
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| 2 |
| 2 |
Number of Gas Valves | 2 |
| 3 |
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| 2 |
| 3 |
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| 2 |
| 3 |
CONDENSER FANS |
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| Propeller Type |
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Quantity...Diameter (in.) |
| 4...30 |
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| 4...30 |
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| 5...30 | |||||
Nominal Cfm |
| 40,000 |
|
| 40,000 |
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| 50,000 | |||||
Motor Hp...Rpm | 1.0...1140 |
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| 1.0...1140 |
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| 1.0...1140 | ||||||
EVAPORATOR FAN |
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| Centrifugal 30 x 27 in. |
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Nominal Cfm |
| 17,500 |
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| 21,000 |
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| 24,500 | |||||
Maximum Allowable Cfm |
| 25,000 |
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| 30,000 |
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| 30,000 | |||||
Maximum Allowable Rpm |
| 750 |
|
| 750 |
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| 750 | |||||
Shaft Diameter at Pulley (in.) |
| 111¤16 |
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| 111¤16 |
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| 111¤16 | |||||
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| (Any motor available on any unit) |
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Motor Hp | 15.0 |
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| 20.0 |
| 25.0 |
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| 30.0 | ||||
Motor Frame Size | 254T |
|
| 256T |
| 284T |
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| 286T | ||||
Efficiency at Full Load (%) |
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Standard Efficiency | 84.5 |
|
| 87.5 |
| 87.1 |
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| 88.3 | ||||
High Efficiency² | 90.0 |
|
| 91.0 |
| 91.7 |
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| 92.4 | ||||
Fan Pulley Pitch Diameter (in.) | 13.7 |
|
| 13.7 |
| 13.7 |
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| 15.5 | ||||
Motor Pulley Pitch Diameter (in.) | 4.5 |
|
|
| 5.1 |
| 5.5 |
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|
| 5.9 | ||
Resulting Fan Rpm | 555 |
|
| 625 |
| 660 |
|
| 700 | ||||
Belts Quantity...Model No. |
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48 Series and 50 Series, Horizontal Discharge | 2...5VX1120 |
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| 2...5VX1150 |
| 2...5VX1150 |
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| 2...5VX1180 | ||||
50 Series, Vertical Discharge | 2...5VX1230 |
|
| 2...5VX1230 |
| 2...5VX1230 |
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| 2...5VX1230 | ||||
Center Distance Range (in.) |
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48 Series and 50 Series, Horizontal Discharge | 48.25...44.00 |
|
| 48.25...44.00 |
| 48.50...44.25 |
|
| 48.50...44.25 | ||||
50 Series, Vertical Discharge | 44.25...39.75 |
|
| 44.25...39.75 |
| 44.00...40.00 |
|
| 44.00...40.00 | ||||
OPTIONAL POWER EXHAUST |
|
| Centrifugal, 18 x 15 in. (Any motor available on any unit) |
|
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Quantity...Motor Hp | 2...5.0 |
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| 2...7.5 |
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| 2...10.0 | ||||||
Motor Frame Size | 184T |
|
| 213T |
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| 215T | ||||||
Efficiency at Full Load (%) | 84.0 |
|
| 82.9 |
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| 85.6 | ||||||
Fan Pulley Pitch Diameter (in.) | 10.6 |
|
| 10.6 |
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| 10.6 | ||||||
Motor Pulley Pitch Diameter (in.) |
| 4.5 |
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| 5.0 |
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|
| 5.6 | |||
Shaft Diameter at Pulley (in.) | 17¤16 |
|
| 17¤16 |
|
| 17¤16 | ||||||
Resulting Fan Rpm | 740 |
|
| 820 |
|
| 920 | ||||||
Maximum Allowable Rpm | 925 |
|
| 925 |
|
| 925 | ||||||
FILTERS |
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Standard Efficiency |
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Throwaway (Standard) | 15...20 x 25 x 2 |
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| 15...20 x 25 x 2 |
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| 15...20 x 25 x 2 | ||||||
Quantity...Size (in.) | 5...16 x 20 x 2 |
|
| 5...16 x 20 x 2 |
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| 5...16 x 20 x 2 | ||||||
Medium Ef®ciency (30%) Pleated (Optional) | 15...20 x 25 x 2 |
|
| 15...20 x 25 x 2 |
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| 15...20 x 25 x 2 | ||||||
Quantity...Size (in.) | 5...16 x 20 x 2 |
|
| 5...16 x 20 x 2 |
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| 5...16 x 20 x 2 | ||||||
High Efficiency (90%) Bag Filters |
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with Pre®lters (Optional) | 6...20 x 24 x 22 |
|
| 6...20 x 24 x 22 |
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| 6...20 x 24 x 22 | ||||||
Quantity...Size (in.) | 6...24 x 24 x 22 |
|
| 6...24 x 24 x 22 |
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| 6...24 x 24 x 22 | ||||||
TXV Ð Thermostatic Expansion Valve
*Data is for all 48 and 50 Series units of the size listed unless otherwise speci®ed. ²Not available on
5
