89
PHYSICAL DATA — 581B090-150 LEGEND
*Single phase/three phase.
†Indicates automatic reset.
**72,000 Btuh heat input units have 2 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.
UNIT SIZE 581B 090 102 120 150
NOMINAL CAPACITY (tons) 71/281/210 121/2
OPERATING WEIGHT (lb)
Unit 870 1015 1035 1050
COMPRESSOR Scroll
Quantity 2222
Oil (oz) (each compressor) 53 50 50 60
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Standard Unit
Circuit 1 (first stage) 7-10 9-8 9-10 9-8
Circuit 2 (second stage) 8- 2 8-13 10-10 9-5
Unit With Perfect Humidity Dehumidification Package
Circuit 1 (first stage) 13-016-016-815-3
Circuit 2 (second stage) 13-616-817-816-6
CONDENSER FAN Propeller
Quantity...Diameter (in.) 2... 22 2...22 2...22 2...22
Nominal Cfm 6500650070007000
Motor Hp...Rpm 1/4...1100 1/4...1100 1/4...1100 1/4...1100
Watts Input (Total) 650 650 650 650
CONDENSER COIL 3/8-in. OD Enhanced Copper Tubes, Aluminum Lanced Fins
Standard Unit
Rows...Fins/in. 2...17 2...17 2...17 2...17
Total Face Area (sq ft) 20.5 25.0 25.0 25.0
Unit with Perfect Humidity Dehumidification Package
Rows...Fins/in. 1...17 1...17 1...17 1...17
Total Face Area (sq ft) 6.38.48.48.4
EVAPORATOR FAN Centrifugal
Size (in.) 15 x 15 15 x 15 15 x 15 15 x 15
Type Drive Belt Belt Belt Belt
Nominal Cfm 3000340040005000
Maximum Continuous Bhp Std 2.90 2.90 3.70 5.25
Hi-Static 4.20 4.20 5.25 —
Motor Frame 56 56 56 56
Fan Rpm Range Std 840-1085 840-1085 860-1080 830-1130
Hi-Static 860-1080 860-1080 830-1130 —
Motor Bearing Type Ball Ball Ball Ball
Maximum Fan Rpm 2100210021002100
Motor Pulley Pitch Diameter
A/B (in.) Std 3.4/4.4 3.4/4.4 4.0/5.0 2.8/3.8
Hi-Static 4.0/5.0 4.0/5.0 2.8/3.8 —
Nominal Motor Shaft Diameter (in.) 7/87/87/87/8
Fan Pulley Pitch Diameter (in.) Std 7.07.08.05.8
Hi-Static 8.0 8.0 5.8 —
Belt — Type...Length (in.) Std A...48 A...51 A...53 BX...48
Hi-Static A...53 A...53 BX...45 —
Pulley Center Line Distance (in.) 16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50
Speed Change per Full Turn of
Movable Pulley Flange (rpm) Std 50 50 45 60
Hi-Static 60 60 60 —
Movable Pulley Maximum Full
Turns from Closed Position Std 5556
Hi-Static 556—
Factory Setting — Full Turns Open Std 5555
Hi-Static 555—
Factory Speed Setting (rpm) Std 840 840 860 887
Hi-Static 860 860 890 —
Fan Shaft Diameter at Pulley (in.) 1111
EVAPORATOR COIL 3/8-in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins
Rows...Fins/in. 3...15 4...15 4...15 4...15
Total Face Area (sq ft) 8.9 11.1 11.1 11.1
Bhp— Brake Horsepower
581B036-150