15 physical data, 548f – Bryant 549B User Manual
Page 15
15
PHYSICAL DATA
548F090-120
LEGEND
Bhp — Brake Horsepower
*Weight of 14-in. roof curb.
UNIT SIZE 548F
090
120
NOMINAL CAPACITY (tons)
7
1
/
2
10
OPERATING WEIGHT (lb)
Unit
940
1015
Economizer
EconoMi$erIV or EconoMi$er2
75
75
Roof Curb*
143
143
COMPRESSOR (Hermetic)
Reciprocating
Scroll
Quantity
2
2
Oil (oz)
45 ea
54 ea
REFRIGERANT TYPE
R-22
Operating Charge (lb-oz)
Circuit 1
5-14
7-14
Circuit 2
5-13
8- 3
OUTDOOR COIL
3
/
8
-in. OD Enhanced Copper Tubes, Aluminum Lanced Fins,
Fixed Orifice Metering Device
Rows...Fins/in.
1...17
2...17
Total Face Area (sq ft)
20.50
18.30
OUTDOOR FAN
Propeller Type
Nominal Cfm
6500
6500
Quantity...Diameter (in.)
2...22
2...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
Watts Input (Total)
500
500
INDOOR COIL
3
/
8
-in. OD Enhanced Copper Tubes, Aluminum Double-Wavy Fins,
Fixed Orifice Metering Device
Rows...Fins/in.
3...15
3...15
Total Face Area (sq ft)
8.0
11.1
INDOOR FAN
Centrifugal Type
Quantity...Size (in.)
Std
1...15 x 15
1...15 x 15
Alt
1...15 x 15
1...15 x 15
High-Static
1...15 x 15
1...15 x 15
Type Drive
Std
Belt
Belt
Alt
Belt
Belt
High-Static
Belt
Belt
Nominal Cfm
3000
4000
Maximum Continuous Bhp
Std
2.40
2.40
Alt
2.40
2.90
High-Static
3.70
5.25
Motor Frame Size
Std
56
56
Alt
56
56
High-Static
56
56
Nominal Rpm
Std
—
—
Alt
—
—
High-Static
1725
1725
Fan Rpm Range
Std
590- 840
685- 935
Alt
685- 935
835-1085
High-Static
860-1080
830-1130
Motor Bearing Type
Ball
Ball
Maximum Allowable Rpm
2100
2100
Motor Pulley Pitch Diameter Min/Max (in.)
Std
2.4/3.4
2.8/3.8
Alt
2.8/3.8
3.4/4.4
High-Static
4.0/5.0
2.8/3.8
Nominal Motor Shaft Diameter (in.)
Std
5
/
8
5
/
8
Alt
5
/
8
7
/
8
High-Static
7
/
8
7
/
8
Fan Pulley Pitch Diameter (in.)
Std
7.0
7.0
Alt
7.0
7.0
High-Static
8.0
5.8
Belt, Quantity...Type...Length (in.)
Std
1...A...53
1...A...49
Alt
1...A...49
1...A...51
High-Static
1...A...65
1...BX...48
Pulley Center Line Distance (in.)
Std
16.75-19.25
15.85-17.50
Alt
16.75-19.25
15.85-17.50
High-Static
16.75-19.25
15.85-17.50
Speed Change per Full Turn of
Moveable Pulley Flange (rpm)
Std
50
50
Alt
50
50
High-Static
60
60
Moveable Pulley Maximum Full Turns
From Closed Position
Std
5
5
Alt
5
5
High-Static
5
6
Factory Setting
Std
5
5
Alt
5
5
High-Static
5
5
Factory Speed Setting (rpm)
Std
590
685
Alt
685
835
High-Static
860
887
Fan Shaft Diameter at Pulley (in.)
1
1
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief (Differential)
450 ± 50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE (LOW-PRESSURE) SWITCH (psig)
Cutout
7 ± 3
Reset (Auto.)
22 ± 5
FREEZE PROTECTION THERMOSTAT (F)
Opens
30 ± 5
Closes
45 ± 5
OUTDOOR-AIR INLET SCREENS
Cleanable.
Screen quantity and size vary based on options selected.
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
4...16 x 20 x 2
4...20 x 20 x 2
548F