Table 1 — physical data – Bryant 548D User Manual
Page 6
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6
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Table 1 — Physical Data
LEGEND
*Indoor coil fin material/outdoor coil fin material.
†Weight of 14-in. roof curb.
**Requires an accessory or optional controls upgrade kit.
NOTE: The 548D units have a loss-of-charge switch located in the liquid line avail-
able as an option or an accessory. (Standard on 120 units.)
UNIT SIZE 548D
090
102
120
NOMINAL CAPACITY (tons)
7
1
/
2
8
1
/
2
10
OPERATING WEIGHT (lb)
Unit
Al/Al*
940
965
1015
Economizer
Durablade
44
44
44
EconoMi$er
62
62
62
Roof Curb†
143
143
143
COMPRESSOR
Hermetic Scroll
Quantity
2
2
2
Oil (oz)
45 ea
62 ea
54 ea
REFRIGERANT TYPE
R-22
Operating Charge (lb-oz)
Circuit 1
5-14
8- 6
7-14
Circuit 2
5-13
8-13
8- 3
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Lanced Fins, Acutrol™ Feed Device
Rows...Fins/in.
1...17
2...17
2...17
Total Face Area (sq ft)
20.50
18.00
18.30
OUTDOOR FAN
Propeller Type
Nominal Cfm
6500
6500
6500
Quantity...Diameter (in.)
2...22
2...22
2...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts Input (Total)
600
600
600
INDOOR COIL
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol Fixed Orifice Metering Feed Device
Rows...Fins/in.
3...15
3...15
3...15
Total Face Area (sq ft)
8.0
8.0
11.1
INDOOR FAN
Centrifugal Type
Quantity...Size (in.)
Std
1...15 x 15
1...15 x 15
1...15 x 15
Alt
1...15 x 15
—
1...15 x 15
Type Drive
Std
Belt
Belt
Belt
Alt
Belt
—
Belt
Nominal Cfm
3000
3600
4000
Maximum Continuous Bhp
Std
2.40
2.40
2.40
Alt
—
—
2.90
Motor Frame Size
Std
56
56
56
Alt
—
—
56
Nominal Rpm High/Low
Std
—
—
—
Alt
—
—
—
Fan Rpm Range
Std
590-840
685-935
685- 935
Alt
685-935
—
835-1085
Motor Bearing Type
Ball
Ball
Ball
Maximum Allowable Rpm
2100
2100
2100
Motor Pulley Pitch Diameter Min/Max (in.)
Std
2.4/3.4
2.8/3.8
2.8/3.8
Alt
2.8/3.8
—
3.4/4.4
Nominal Motor Shaft Diameter (in.)
Std
5
/
8
5
/
8
5
/
8
Alt
—
—
7
/
8
Fan Pulley Pitch Diameter (in.)
Std
7.0
7.0
7.0
Alt
7.0
—
7.0
Belt, Quantity...Type...Length (in.)
Std
1...A...48
1...A...48
1...A...48
Alt
1...A...48
—
1...A...48
Pulley Center Line Distance (in.)
Std
16.75-19.25
16.75-19.25
15.85-17.50
Alt
15.75-19.25
—
15.85-17.50
Speed Change per Full Turn of
Movable Pulley Flange (rpm)
Std
50
50
50
Alt
50
—
50
Movable Pulley Maximum Full Turns
From Closed Position
Std
5
5
5
Alt
5
—
5
Factory Setting
Std
5
5
5
Alt
5
—
5
Factory Speed Setting (rpm)
Std
590
685
685
Alt
685
—
835
Fan Shaft Diameter at Pulley (in.)
1
1
1
HIGH-PRESSURE SWITCH (psig)**
Standard Compressor Internal Relief (Differential)
450 ± 50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE SWITCH (psig)**
Cutout
7 ± 3
Reset (Auto.)
22 ± 5
FREEZE-PROTECTION THERMOSTAT (F)**
Opens
30 ± 5
Closes
45 ± 5
OUTDOOR-AIR INLET SCREENS
Cleanable
Quantity...Size (in.)
1...20 x 25 x 1
1...16 x 25 x 1
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
4...16 x 20 x 2
4...16 x 20 x 2
4...20 x 20 x 2
Al
— Aluminum
Bhp — Brake Horsepower