Bryant 549B User Manual
Page 75
75
PHYSICAL DATA — 549C024-060
LEGEND
*Single phase/three phase.
UNIT SIZE 549C
024
036
048
060
NOMINAL CAPACITY (tons)
2
3
4
5
OPERATING WEIGHT (lb)
Unit
550
550
560
630
EconoMi$erIV
50
50
50
50
Roof Curb
115
115
115
115
COMPRESSOR
Scroll
Quantity
1
1
1
1
Oil (oz)
80
42
42
53
REFRIGERANT TYPE
R–22
Operating Charge (lb)
5.2
12.0
12.0
18.3
OUTDOOR FAN
Propeller Type
Quantity...Diameter (in.)
1...22
1...22
1...22
1...22
Nominal Cfm
3000
3500
3500
3500
Motor Hp...Rpm
1
/
8
...760
1
/
8
...825
1
/
8
...825
1
/
4
...1100
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device
Rows...Fins/in.
1...17
2...17
2...17
2...17
Total Face Area (sq ft)
14.58
16.53
16.53
21.25
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
Type Drive
Std
Belt
Belt
Belt
Belt
High-Static
—
Belt
Belt
Belt
Nominal Cfm
800
1200
1600
2000
Maximum Continuous Bhp
Std
0.58
1.20
1.20
1.30/2.40*
High-Static
—
2.40
2.40
2.90
Motor Frame Size
Std
39
48
48
56
High-Static
—
56
56
56
Nominal Rpm High/Low
Std
1620
1620
1620
1725
High-Static
—
1725
1725
1725
Fan Rpm Range
Std
639-936
680-1044
770-1185
1035-1460
High-Static
—
1075-1455
1075-1455
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
1.9/2.9
2.4/3.4
High-Static
—
2.8/3.8
2.8/3.8
3.4/4.4
Nominal Motor Shaft Diameter (in.)
Std
1
/
2
1
/
2
1
/
2
5
/
8
High-Static
—
5
/
8
5
/
8
5
/
8
Fan Pulley Pitch Diameter (in.)
Std
5.2
4.5
4.0
4.5
High-Static
—
4.5
4.5
4.5
Belt, Quantity...Type...Length (in.)
Std
1...A...36
1...A...34
1...A...34
1...A...39
High-Static
—
1...A...39
1...A...39
1...A...40
Pulley Center Line Distance (in.)
Std
10.0-12.4
10.0-12.4
10.0-12.4
14.7-15.5
High-Static
—
10.0-12.4
10.0-12.4
14.7-15.5
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Std
60
48
70
80
High-Static
—
65
65
60
Movable Pulley Maximum Full Turns
From Closed Position
Std
5
5
5
6
High-Static
—
6
6
5
Factory Setting
Std
3
3
3
3
High-Static
—
3
1
/
2
3
1
/
2
3
1
/
2
Factory Speed Setting (rpm)
Std
758
826
936
1249
High-Static
—
1233
1233
1416
Fan Shaft Diameter at Pulley (in.)
5
/
8
5
/
8
5
/
8
5
/
8
INDOOR COIL
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Metering Device
Rows...Fins/in.
2...15
2...15
3...15
4...15
Total Face Area (sq ft)
5.5
5.5
5.5
7.33
HIGH–PRESSURE SWITCH (psig)
Standard Compressor Internal Relief
625
Cutout
428
Reset (Auto.)
320
LOSS OF CHARGE
(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