Table 1A — Physical Data — 48AJ,AK,AW,AY Units
UNIT 48AJ,AK,AW,AY |
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| 020D/E |
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| 025D/E |
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| 027D/E |
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| 030D/E |
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NOMINAL CAPACITY (tons) |
| 20 |
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| 25 |
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| 27 |
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| 30 |
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BASE UNIT OPERATING WEIGHT (lb) |
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| See Operating Weights Table 2. |
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COMPRESSOR |
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Quantity...Type (Ckt 1 , Ckt 2) | 1...06D328, 1...06D818 |
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| 2...06D328 |
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| 2...06D328 |
| 1...06D537, 1…06D328 | |||||||||||||||||||
Number of Refrigerant Circuits |
| 2 |
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| 2 |
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| 2 |
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| 2 |
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Oil (oz) (Ckt 1 , Ckt 2) |
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| 115, 88 |
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| 115 ea. |
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| 115 ea. |
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| 115 ea. |
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REFRIGERANT TYPE |
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Operating Charge |
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Circuit 1 |
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Circuit 2 |
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CONDENSER COIL * |
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Quantity |
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| 1 |
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| 1 |
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| 1 |
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| 1 |
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Rows...Fins/in. |
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| 4...15 |
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| 4...15 |
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| 4...15 |
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| 4...15 |
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Total Face Area (sq ft) |
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| 33.3 |
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| 33.3 |
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| 33.3 |
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| 33.3 |
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CONDENSER FAN |
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| Propeller Type |
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Nominal Cfm |
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| 13,420 |
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| 13,420 |
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| 13,420 |
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| 13,420 |
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Quantity...Diameter (in.) |
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| 2...30 |
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| 2...30 |
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| 2...30 |
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| 2...30 |
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Motor Hp |
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| 1 |
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| 1 |
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| 1 |
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| 1 |
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EVAPORATOR COIL |
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Tube Size (in.) |
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| 3/8 |
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| 3/8 |
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| 3/8 |
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| 3/8 |
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Rows...Fins/in. |
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| 4...15 |
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| 4...15 |
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| 4...15 |
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| 4... 5 |
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Total Face Area (sq ft) |
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| 31.7 |
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| 31.7 |
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| 34.7 |
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| 34.7 |
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EVAPORATOR FAN |
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| Centrifugal Type |
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Quantity...Size (in.) |
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| 2...20 X 15 |
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| 2... 20 X 15 |
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| 2... 20 X 15 |
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| 2... 20 X 15 |
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Type Drive |
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| Belt |
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| Belt |
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| Belt |
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| Belt |
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Nominal Cfm |
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| 8,000 |
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| 10,000 |
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| 11,000 |
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| 12,000 |
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Motor Hp |
| 5 |
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| 10 |
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| 15 | 7.5 |
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| 10 |
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| 15 | 10 |
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| 15 |
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| 20 | 10 |
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| 15 |
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| 20 |
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Motor Frame Size |
| 184T |
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| 215T |
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| 254T | 213T |
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| 215T |
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| 254T | 215T |
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| 254T |
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| 256T | 215T |
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| 254T |
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| 256T |
Motor Bearing Type |
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| Ball |
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| Ball |
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| Ball |
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| Ball |
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Maximum Allowable Rpm |
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| 1200 |
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| 1200 |
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| 1200 |
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| 1200 |
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Motor Pulley Pitch Diameter | 4.9 |
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| 4.4 |
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| 5.7 | 5.4 |
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| 6.1 |
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| 5.5 | 4.4 |
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| 4.9 |
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| 5.9 | 4.4 |
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| 5.7 |
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| 5.9 | |
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Nominal Motor Shaft Diameter (in.) | 11/8 |
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| 13/8 |
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| 13/8 | 13/8 |
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| 13/8 |
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| 15/8 | 13/8 |
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| 15/8 |
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| 15/8 | 13/8 |
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| 15/8 |
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| 15/8 | |
Fan Pulley Pitch Diameter (in.) | 12.4 |
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| 8.6 |
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| 9.1 | 12.4 |
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| 11.1 |
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| 8.7 | 9.4 |
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| 8.1 |
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| 8.7 | 9.0 |
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| 9.1 |
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| 8.7 | |
Nominal Fan Shaft Diameter (in.) |
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| 115/16 |
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| 115/16 |
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| 115/16 |
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| 115/16 |
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Belt Quantity |
| 1 |
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| 2 |
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| 2 | 1 |
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| 1 |
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| 2 | 2 |
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| 2 |
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| 2 | 2 |
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| 2 |
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| 2 |
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Belt Type |
| BX56 |
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| BX50 |
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| 5VX530 | BX56 |
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| 5VX590 |
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| 5VX570 | BX50 |
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| 5VX500 |
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| 5VX530 | BX50 |
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| 5VX530 |
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| 5VX530 |
Belt Length (in.) |
| 56 |
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| 63 |
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| 53 | 56 |
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| 59 |
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| 57 | 50 |
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| 50 |
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| 53 | 50 |
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| 53 |
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| 53 |
Pulley Center Line Distance (in.) |
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Factory Speed Setting (rpm) | 717 |
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| 924 |
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| 1096 | 773 |
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| 962 |
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| 1106 | 848 |
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| 1059 |
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| 1187 | 884 |
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| 1096 |
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| 1187 | |
FURNACE SECTION |
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Rollout Switch Cutout |
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Temp (F) † |
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| 225 |
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| 225 |
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| 225 |
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| 225 |
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Burner Orifice Diameter | (in. ...drill size) |
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Natural Gas | Std |
| .111...34 |
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| .111...34 |
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| .111...34 |
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| .111...34 |
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Liquid Propane | Alt |
| .089...43 |
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| .089...43 |
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| .089...43 |
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| .089...43 |
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Thermostat Heat Anticipator Setting |
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Stage 1 (amps) |
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| 0.1 |
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| 0.1 |
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| 0.1 |
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| 0.1 |
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Stage 2 (amps) |
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| 0.1 |
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| 0.1 |
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| 0.1 |
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| 0.1 |
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Gas Input (Btuh) | Stage 1 |
| 262,500/394,000 |
| 262,500/394,000 |
| 262,500/394,000 |
| 262,500/394,000 | ||||||||||||||||||||
| Stage 2 |
| 350,000/525,000 |
| 350,000/525,000 |
| 350,000/525,000 |
| 350,000/525,000 | ||||||||||||||||||||
Efficiency (Steady State) (%) |
| 82 |
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| 82 |
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| 82 |
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| 82 |
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Temperature Rise Range |
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Manifold Pressure (in. wg) |
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Natural Gas | Std |
| 3.5 |
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| 3.5 |
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| 3.5 |
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| 3.5 |
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Liquid Propane | Alt |
| 3.5 |
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| 3.5 |
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| 3.5 |
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| 3.5 |
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Gas Valve Quantity |
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| 2 |
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| 2 |
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| 2 |
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| 2 |
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Cutout |
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| 426 |
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| 426 |
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| 426 |
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| 426 |
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Reset (Auto.) |
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| 320 |
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| 320 |
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| 320 |
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| 320 |
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Cutout |
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| 27 |
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| 27 |
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| 27 |
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| 27 |
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Reset (Auto.) |
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| 67 |
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| 67 |
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| 67 |
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| 67 |
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Quantity...Size (in.) |
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| 10...20 x 24 x 2 |
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| 10...20 x 24 x 2 |
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| 10...20 x 24 x 2 |
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| 10...20 x 24 x 2 |
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OUTDOOR AIR FILTERS |
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| 8...16 x 25 |
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| 8...16 x 25 |
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| 8...16 x 25 |
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| 8...16 x 25 |
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Quantity...Size (in.) |
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| 4...20 x 25 |
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| 4...20 x 25 |
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| 4..20 x 25 |
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| 4...20 x 25 |
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| LEGEND |
Al | — | Aluminum |
Bhp | — | Brake Horsepower |
Cu | — | Copper |
*Sizes
Sizes
†Rollout switch is manual reset.
NOTE: High heat is for 48AJ,AW only.
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