Bryant DURAPAC PLUS 581A User Manual download pdf (Page 6)

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Table 1 — Physical Data

LEGEND *Aluminum evaporator coil and aluminum condenser coil.

UNIT 581A 210 240 300

NOMINAL CAPACITY (tons) 18 20 25

OPERATING WEIGHT (lb)

Al/Al* 2224 2272 2526

COMPRESSOR

Quantity 332

Number of Refrigerant Circuits 332

Oil (ounces) Ckt A...Ckt B...Ckt C 68...68...90 90...90...90 110...110...N/A

REFRIGERANT TYPE R-22 R-22 R-22

Expansion Device TXV TXV TXV

Operating Charge (lb)

Circuit A 13.1 13.8 21.8

Circuit B 12.7 13.9 20.3

Circuit C 15.2 15.5 N/A

CONDENSER FAN

Nominal Cfm (Total, all fans) 14,000 14,000 21,000

Quantity...Diameter (in.) 4...22 4...22 6...22

Motor Hp...Rpm

...1100

Watts Input (Total) 1400 1400 2100

CONDENSER COIL

Rows...Fins/in. 2...17 2...17 2...17

Total Face Area (sq ft) 57.78 57.78 66.67

EVAPORATOR FAN

Quantity...Size 2...15x11 2...15x11 2...15x11

Type Drive Belt Belt Belt

Nominal Cfm 7000 8000 10,000

Motor Bearing Type Ball Ball Ball

Maximum Allowable Fan Rpm 1400 1400 1400

EVAPORATOR COIL

Rows...Fins/in. 3...15 4...15 4...15

Total Face Area (sq ft) 23.33 23.33 27.22

FURNACE SECTION

Rollout Switch Cutout Temp (F) 225 225 225

Burner Orifice Diameter (in. ...drill size) 0.136...29 0.136...29 0.136...29

Gas Natural Natural Natural

Thermostat Heat Anticipator Setting

Stage 1 (amps) 0.98 0.98 0.98

Stage 2 (amps) 0.44 0.44 0.44

Gas Input (Btuh) HIGH HEAT Stage 1 317,000 317,000 317,000

Stage 2 400,000 400,000 400,000

Efficiency (Steady State) % Vertical 82 82 82

Temperature Rise Range (F) 25-55 25-55 25-55

Gas Input (Btuh) MEDIUM HEAT Stage 1 281,000 281,000 281,000

Stage 2 365,000 365,000 365,000

Efficiency (Steady State) % Vertical 81 81 81

Temperature Rise Range (F) 25-55 25-55 25-55

Gas Input (Btuh) LOW HEAT Stage 1 199,000 199,000 199,000

Stage 2 250,000 250,000 250,000

Efficiency (Steady State) % Vertical 82 82 82

Temperature Rise Range (F) 15-45 15-45 15-45

Manifold Pressure

Natural Gas (in. wg) Vertical 3.00 3.00 3.00

Natural Gas (in. wg) Horizontal 2.95 2.95 2.95

Gas Valve Quantity 111

Gas Valve Pressure Range (in. wg) 5.5-13.0 5.5-13.0 5.5-13.0

Min-Max Allowable (psig) .235-.469 .235-.469 .235-.469

Field Gas Connection Size (in. FPT)

HIGH-PRESSURE SWITCH (psig)

Cutout 426 426 426

Reset (Auto) 320 320 320

OUTDOOR-AIR INLET SCREENS

Quantity...Size (in.) 3...20x25 3...20x25 3...20x25

RETURN-AIR FILTERS

Quantity...Size (in.) 9...16x25 9...16x25 9...18x24

N/A — Not Applicable

TXV — Thermostatic Expansion Valve

1 2 3 4 5 6 7 8 9 10 11 ... 55 56

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Bryant DURAPAC PLUS 581A User Manual Page 6

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