
Table 1—Physical Data 581B
BASE UNIT 581B |
| 036 |
| 048 |
| 060 |
| 072 |
NOMINAL CAPACITY (tons) |
| 3 |
| 4 |
| 5 |
| 6 |
OPERATING WEIGHT (lb) |
|
|
|
|
|
|
|
|
Unit |
| 530 |
| 540 |
| 560 |
| 635 |
Perfect Humidity™ Adaptive Dehumidification System |
| 15 |
| 23 |
| 25 |
| 29 |
EconoMi$er IV |
| 50 |
| 50 |
| 50 |
| 50 |
Roof Curb |
| 115 |
| 115 |
| 115 |
| 115 |
COMPRESSOR |
|
|
| Scroll |
|
|
| |
Quantity |
| 1 |
| 1 |
| 1 |
| 1 |
Oil (oz) |
| 42 |
| 53 |
| 50 |
| 60 |
REFRIGERANT TYPE |
|
|
|
|
|
| ||
Expansion Device |
|
|
| Acutrol™ Metering Device |
|
|
| |
Operating Charge |
|
|
|
|
|
|
|
|
Standard Unit |
|
|
|
| 12- 8 | |||
Unit With Perfect Humidity Adaptive Dehumidification System |
|
|
| |||||
CONDENSER FAN |
|
|
| Propeller |
|
|
| |
Quantity...Diameter (in.) |
| 1...22 |
| 1...22 |
| 1...22 |
| 1...22 |
Nominal Cfm |
| 3500 |
| 3500 |
| 4100 |
| 4100 |
Motor Hp...Rpm |
| 1/ ...825 |
| 1/ ...825 |
| 1/ ...1100 |
| 1/ ...1100 |
Watts Input (Total) |
| 4 |
| 4 |
| 4 |
| 4 |
| 180 |
| 180 |
| 320 |
| 320 | |
CONDENSER COIL |
|
|
| |||||
Rows...Fins/in. |
| 1...17 |
| 2...17 |
| 2...17 |
| 2...17 |
Total Face Area (sq ft) |
| 14.6 |
| 16.5 |
| 16.5 |
| 21.3 |
EVAPORATOR COIL |
|
| ||||||
Standard Unit |
|
|
|
|
|
|
|
|
Rows...Fins/in. |
| 2...15 |
| 2...15 |
| 4...15 |
| 4...15 |
Total Face Area (sq ft) |
| 5.5 |
| 5.5 |
| 5.5 |
| 7.3 |
Unit with Perfect Humidity Adaptive Dehumidification System |
|
|
|
|
|
|
| |
Rows...Fins/in. |
| 1...17 |
| 2...17 |
| 2...17 |
| 2...17 |
Total Face Area (sq ft) |
| 3.9 |
| 3.9 |
| 3.9 |
| 5.2 |
EVAPORATOR FAN |
|
|
| Centrifugal Type, Belt Drive |
| |||
Quantity...Size (in.) |
| 1...10 x 10 |
| 1...10 x 10 |
| 1...10 x 10 |
| 1...10 x 10 |
Nominal Cfm | Std | 1200 |
| 1600 |
| 2000 |
| 2400 |
Maximum Continuous Bhp | 1.20 |
| 1.20 |
| 1.30/2.40* |
| 2.40 | |
| 2.40 |
| 2.40 |
| 2.90 |
| 2.90 | |
Motor RPM | Std | 1620 |
| 1620 |
| 1725 |
| 1725 |
| 1725 |
| 1725 |
| 1725 |
| 1725 | |
Motor Frame Size | Std | 48 |
| 48 |
| 48/56* |
| 56 |
| 56 |
| 56 |
| 56 |
| 56 | |
Fan Rpm Range | Std |
|
|
| ||||
Motor Bearing Type |
|
|
| |||||
| Ball |
| Ball |
| Ball |
| Ball | |
Maximum Fan Rpm | Std | 2100 |
| 2100 |
| 2100 |
| 2100 |
Motor Pulley Pitch Diameter A/B (in.) | 1.9/2.9 |
| 1.9/2.0 |
| 2.4/3.4 |
| 2.4/3.4 | |
| 2.8/3.8 |
| 2.8/3.8 |
| 3.4/4.4 |
| 3.4/3.4 | |
Nominal Motor Shaft Diameter (in.) | Std | 1/2 |
| 1/2 |
| 5/8 |
| 5/8 |
| 5/8 |
| 5/8 |
| 5/8 |
| 7/8 | |
Fan Pulley Pitch Diameter (in.) | Std | 4.5 |
| 4.0 |
| 4.0 |
| 4.0 |
| 4.5 |
| 4.0 |
| 4.5 |
| 4.5 | |
Belt — Type...Length (in.) | Std | 1...A...36 |
| 1...A...36 |
| 1....4...40 |
| 1...A...38 |
Pulley Center Line Distance (in.) | 1...A...39 |
| 1...A...39 |
| 1...A...40 |
| 1...A...40 | |
Std |
|
|
| |||||
Speed Change per Full Turn of | 65 |
| 70 |
| 75 |
| 95 | |
Movable Pulley Flange (rpm) | 65 |
| 65 |
| 60 |
| 60 | |
Movable Pulley Maximum Full | Std | 5 |
| 5 |
| 6 |
| 5 |
Turns from Closed Position | 6 |
| 6 |
| 5 |
| 5 | |
Factory Setting — Full Turns Open | Std | 3 |
| 3 |
| 3 |
| 3 |
| 31/2 |
| 31/2 |
| 31/2 |
| 31/2 | |
Factory Speed Setting (rpm) | Std | 826 |
| 936 |
| 1248 |
| 1305 |
Fan Shaft Diameter at Pulley (in.) | 1233 |
| 1233 |
| 1396 |
| 1396 | |
| 5/8 |
| 5/8 |
| 5/8 |
| 5/8 |
LEGEND
Bhp — Brake Horsepower
581B,C
9