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6
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Table 1 — 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. If an LP kit is used with low NO
x
units,
one low NO
x
baffle must be removed and the units will no longer be classified
as low NO
x
units.
||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
3
4
5
6
OPERATING WEIGHT (lb)
Unit
530
540
560
635
EconoMi$er IV
50
50
50
50
Perfect Humidity™ Dehumidification System
15
23
23
29
Roof Curb
115
115
115
115
COMPRESSOR
Scroll
Quantity
1
1
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 System
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
Enhanced Copper Tubes, Aluminum Lanced Fins
Rows...Fins/in.
1...17
2...17
2...17
2...17
Total Face Area (sq ft)
14.6
16.5
16.5
16.5
EVAPORATOR COIL
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device
Standard Unit
Rows...Fins/in.
2...15
2...15
4...15
4...15
Total Face Area (sq ft)
5.5
5.5
5.5
5.5
Unit with Perfect Humidity 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
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
4.0
Hi-Static
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
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
5
5
6
5
Hi-Static
6
6
5
5
Factory Setting — Full Turns Open
Std
3
3
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
Содержание DURAPAC PLUS 581B
Страница 8: ...8 Fig 7 Base Unit Dimensions 581B036 072...
Страница 51: ......
