Bryant 549B User Manual
Page 73
73
PHYSICAL DATA — 549B036-072
LEGEND
*Single phase/three phase.
UNIT SIZE 549B
036
048
060
072
NOMINAL CAPACITY (tons)
3
4
5
6
OPERATING WEIGHT (lb)
Unit
550
560
630
630
EconoMi$erIV
50
50
50
50
Roof Curb
115
115
115
115
COMPRESSOR
Scroll
Quantity
1
1
1
1
Oil (oz)
42
42
53
80
REFRIGERANT TYPE
R-22
Operating Charge (lb)
12.0
12.0
18.3
17.7
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device
Rows...Fins/in.
2...17
2...17
2...17
2...17
Total Face Area (sq ft)
16.53
16.53
21.25
21.25
OUTDOOR FAN
Propeller Type
Quantity...Diameter (in.)
1...22
1...22
1...22
1...22
Nominal Cfm
3500
3500
3500
3500
Motor Hp...Rpm
1
/
8
...825
1
/
8
...825
1
/
4
...1100
1
/
4
...1100
INDOOR COIL
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Metering Device
Rows...Fins/in.
2...15
3...15
4...15
4...15
Total Face Area (sq ft)
5.5
5.5
7.33
7.33
INDOOR FAN
Centrifugal Type
Quantity...Size (in.)
Std
1...10 x 10
1...10 x 10
1...10 x 10
1...10 x 10
High-Static
1...10 x 10
1...10 x 10
1...10 x 10
1...10 x 10
Type Drive
Std
Belt
Belt
Belt
Belt
High-Static
Belt
Belt
Belt
Belt
Nominal Cfm
1200
1600
2000
2400
Maximum Continuous Bhp
Std
1.20
1.20
1.30/2.40*
2.40
High-Static
2.40
2.40
2.90
2.90
Motor Frame Size
Std
48
48
56
56
High-Static
56
56
56
56
Nominal Rpm High/Low
Std
1620
1620
1725
—
High-Static
1725
1725
1725
1725
Fan Rpm Range
Std
680-1044
770-1185
1035-1460
1119-1585
High-Static
1075-1455
1075-1455
1300-1685
1300-1685
Motor Bearing Type
Ball
Ball
Ball
Ball
Maximum Allowable Rpm
2100
2100
2100
2100
Motor Pulley Pitch Diameter Min/Max (in.)
Std
1.9/2.9
1.9/2.9
2.4/3.4
2.4/3.4
High-Static
2.8/3.8
2.8/3.8
3.4/4.4
3.4/4.4
Nominal Motor Shaft Diameter (in.)
Std
1
/
2
1
/
2
5
/
8
5
/
8
High-Static
5
/
8
5
/
8
5
/
8
5
/
8
Fan Pulley Pitch Diameter (in.)
Std
4.5
4.0
4.5
3.7
High-Static
4.5
4.5
4.5
4.5
Belt, Quantity...Type...Length (in.)
Std
1...A...34
1...A...34
1...A...39
1...A...40
High-Static
1...A...39
1...A...39
1...A...40
1...A...40
Pulley Center Line Distance (in.)
Std
10.0-12.4
10.0-12.4
14.7-15.5
14.7-15.5
High-Static
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
48
70
80
80
High-Static
65
65
60
60
Movable Pulley Maximum Full Turns
From Closed Position
Std
5
5
6
5
High-Static
6
6
5
5
Factory Setting
Std
3
3
3
3
High-Static
3
1
/
2
3
1
/
2
3
1
/
2
3
1
/
2
Factory Speed Setting (rpm)
Std
826
936
1249
1305
High-Static
1233
1233
1416
1416
Fan Shaft Diameter at Pulley (in.)
5
/
8
5
/
8
5
/
8
5
/
8
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
625
Cutout
428
Reset (Auto.)
320
LOSS OF CHARGE (Low-Pressure Switch)
(Liquid Line) (psig)
Cutout
7 ± 3
Reset (Auto.)
22 ± 5
FREEZE PROTECTION THERMOSTAT
Opens (F)
30
Closes (F)
45
OUTDOOR-AIR INLET SCREENS
Cleanable.
Screen quantity and size varies with option selected.
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
2...16 x 25 x 2
Bhp — Brake Horsepower
549
B, 5
49C