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UNIT SIZE 581B
NOMINAL CAPACITY
OPERATING WEIGHT (lb)
Unit
EconoMi$er IV
Perfect Humidity™ Dehumidification System
Roof Curb
COMPRESSOR
Quantity
Oil (oz)
REFRIGERANT TYPE
Operating Charge (lb-oz)
Standard Unit
Unit With Perfect Humidity Dehumidification System
CONDENSER FAN
Quantity...Diameter (in.)
Nominal Cfm
Motor Hp...Rpm
Watts Input (Total)
CONDENSER COIL
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR COIL
Standard Unit
Rows...Fins/in.
Total Face Area (sq ft)
Unit with Perfect Humidity Dehumidification System
Rows...Fins/in.
Total Face Area (sq ft)
EVAPORATOR FAN
Quantity...Size (in.)
Nominal Cfm
Maximum Continuous Bhp
Motor Frame Size
Fan Rpm Range
Motor Bearing Type
Maximum Fan Rpm
Motor Pulley Pitch Diameter A/B (in.)
Nominal Motor Shaft Diameter (in.)
Fan Pulley Pitch Diameter (in.)
Belt — Type...Length (in.)
Pulley Center Line Distance (in.)
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full
Turns from Closed Position
Factory Setting — Full Turns Open
Factory Speed Setting (rpm)
Fan Shaft Diameter at Pulley (in.)
LEGEND
Bhp — Brake Horsepower
*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.
Table 1 — Physical Data — 581B036-072
036
3
530
50
15
115
1
42
5-8
9-0
1...22
3500
1
/
...825
4
180
1...17
14.6
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device
2...15
5.5
1...17
3.9
1...10 x 10
1200
Std
1.20
Hi-Static
2.40
Std
48
Hi-Static
56
Std
680-1044
Hi-Static
1075-1455
Ball
2100
Std
1.9/2.9
Hi-Static
2.8/3.8
Std
1
/
2
Hi-Static
5
/
8
Std
4.5
Hi-Static
4.5
Std
1...A...36
Hi-Static
1...A...39
10.0-12.4
Std
65
Hi-Static
65
Std
5
Hi-Static
6
Std
3
Hi-Static
3
1
/
2
Std
826
Hi-Static
1233
5
/
8
††An LP kit is available as an accessory. If an LP kit is used with low NO
one low NO
as low NO
||California compliant three-phase models.
***California SCAQMD compliant low NO
are controlled to 40 nanograms per joule or less.
—
6
—
048
060
4
5
540
560
50
50
23
23
115
115
Scroll
1
1
53
50
R-22
10-2
10-0
15-8
17-0
Propeller
1...22
1...22
3500
4100
1
1
/
...825
/
...1100
4
4
180
320
Enhanced Copper Tubes, Aluminum Lanced Fins
2...17
2...17
16.5
16.5
2...15
4...15
5.5
5.5
2...17
2...17
3.9
3.9
Centrifugal Type, Belt Drive
1...10 x 10
1...10 x 10
1600
2000
1.20
1.30/2.40*
2.40
2.90
48
48/56*
56
56
770-1185
1035-1460
1075-1455
1300-1685
Ball
Ball
2100
2100
1.9/2.0
2.4/3.4
2.8/3.8
3.4/4.4
1
/
5
2
5
/
5
8
4.0
4.0
4.0
4.5
1...A...36
1....4...40
1...A...39
1...A...40
10.0-12.4
14.7-15.5
70
75
65
60
5
6
6
5
3
3
3
1
/
3
1
2
936
1248
1233
1396
5
/
5
8
baffle must be removed and the units will no longer be classified
x
units.
x
x
072
6
635
50
29
115
1
60
12-8
21-0
1...22
4100
1
/
...1100
4
320
2...17
16.5
4...15
5.5
2...17
5.2
1...10 x 10
2400
2.40
2.90
56
56
1119-1585
1300-1685
Ball
2100
2.4/3.4
3.4/3.4
/
5
/
8
8
/
7
/
8
8
4.0
4.5
1...A...38
1...A...40
14.7-15.5
95
60
5
5
3
/
3
1
/
2
2
1305
1396
/
5
/
8
8
units,
x
models have combustion products that
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