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PHYSICAL DATA — 581B036-072
LEGEND
*Single phase/three phase.
†Indicates automatic reset.
**60,000 and 72,000 Btuh heat input units have 2 burners. 90,000 and
120,000 Btuh heat input units have 3 burners. 115,000 Btuh heat input units
and 150,000 Btuh Heat input units have 3 burners.
††An LP kit is available as an accessory.
||California compliant three-phase models.
***California SCAQMD compliant low NO
x
models have combustion products that
are controlled to 40 nanograms per joule or less.
UNIT SIZE 581B 036 048 060 072
NOMINAL CAPACITY 34 5 6
OPERATING WEIGHT (lb)
Unit 530 540 560 635
COMPRESSOR Scroll
Quantity 11 1 1
Oil (oz) 42 53 50 60
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Standard Unit 5-8 10-2 10- 0 12-8
Unit With Perfect Humidity Dehumidification Package 9-0 15-8 17-0 21-0
CONDENSER FAN Propeller
Quantity...Diameter (in.) 1...22 1...22 1...22 1...22
Nominal Cfm 3500 3500 4100 4100
Motor Hp...Rpm
1
/
4
...825
1
/
4
...825
1
/
4
...1100
1
/
4
...1100
Watts Input (Total) 180 180 320 320
CONDENSER COIL
3
/
8
-in. OD Enhanced Copper Tubes, Aluminum Lanced Fins
Standard Unit
Rows...Fins/in. 1...17 2...17 2...17 2...17
Total Face Area (sq ft) 14.6 16.5 16.5 16.5
Unit with Perfect Humidity Dehumidification Package
Rows...Fins/in. 1...17 1...17 1...17 1...17
Total Face Area (sq ft) 3.9 3.9 3.9 3.9
EVAPORATOR COIL
3
/
8
-in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device
Rows...Fins/in. 2...15 2...15 4...15 4...15
Total Face Area (sq ft) 5.5 5.5 5.5 5.5
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 1200 1600 2000 2400
Maximum Continuous Bhp Std 1.20 1.20 1.30/2.40* 2.40
Hi-Static 2.40 2.40 2.90 2.90
Motor Frame Size Std 48 48 48/56* 56
Hi-Static 56 56 56 56
Fan Rpm Range Std 680-1044 770-1185 1035-1460 1119-1585
Hi-Static 1075-1455 1075-1455 1300-1685 1300-1685
Motor Bearing Type Ball Ball Ball Ball
Maximum Fan Rpm 2100 2100 2100 2100
Motor Pulley Pitch Diameter A/B (in.) Std 1.9/2.9 1.9/2.0 2.4/3.4 2.4/3.4
Hi-Static 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
Hi-Static
5
/
8
5
/
8
5
/
8
7
/
8
Fan Pulley Pitch Diameter (in.) Std 4.5 4.0 4.0 3.7
Hi-Static 4.5 4.5 4.5 4.5
Belt — Type...Length (in.) Std 1...A...36 1...A...36 1....4...40 1...A...38
Hi-Static 1...A...39 1...A...39 1...A...40 1...A...40
Pulley Center Line Distance (in.) 10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Std 65 70 75 95
Hi-Static 65 65 60 60
Movable Pulley Maximum Full
Turns from Closed Position
Std 55 6 5
Hi-Static 66 5 5
Factory Setting — Full Turns Open Std 33 3 3
Hi-Static 3
1
/
2
3
1
/
2
3
1
/
2
3
1
/
2
Factory Speed Setting (rpm) Std 826 936 1248 1305
Hi-Static 1233 1233 1396 1396
Fan Shaft Diameter at Pulley (in.)
5
/
8
5
/
8
5
/
8
5
/
8
Bhp — Brake Horsepower
581B036-150