Bryant 548F - Manual (Page 69)

69
PHYSICAL DATA (cont)
549B090,120
LEGEND
BASE UNIT 549B 090 120
NOMINAL CAPACITY (tons) 7 1 / 2 10
OPERATING WEIGHT (lb)
Unit 870 1000
Durablade Economizer 44 44
EconoMi$er 62 62
Roof Curb 223 223
COMPRESSOR Scroll
Quantity 2 2
Oil (oz) (each compr) 57 57
REFRIGERANT TYPE R-22
Operating Charge (lb)
Circuit 1
9.1 10.6
Circuit 2 9.6 9.9
OUTDOOR FAN Propeller
Quantity...Diameter (in.) 2...22 2...22
Nominal Cfm 6500 6500
Motor Hp...Rpm 1 /
4
...1100 1 /
4
...1100
OUTDOOR COIL Enhanced Copper Tubes, Aluminum Fins, Fixed Orifice Metering Device
Rows...Fins/in. 2...17 2...17
Total Face Area (sq ft) 20.5 25.1
INDOOR FAN Centrifugal
Size (in.) 15 x 15 15 x 15
Type Drive Belt Belt
Nominal Cfm 3000 4000
Maximum Continuous Bhp 2.90 4.20
Motor Frame 56 56
Fan Rpm Range 725-925 860-1080
Motor Bearing Type Ball Ball
Maximum Fan Rpm 1725 2100
Motor Pulley Pitch Diameter
A/B (in.) 3.4/4.4 4.0/5.0
Fan Pulley Pitch Diameter (in.) 8.0 8.0
Belt — Type...Length (in.) A...51 A...51
Pulley Center Line Distance (in.) 16.75-19.25 15.85-17.50
Fan Shaft Diameter at Pulley (in.) 1 1
Speed Change per Full Turn of
Movable Pulley Flange (rpm) 50 45
Movable Pulley Maximum Full
Turns from Closed Position 5 5
Factory Setting — Full Turns Open 5 5
Factory Speed Setting (rpm) 725 860
INDOOR COIL Enhanced Copper Tubes, Aluminum Double Wavy Fins, Fixed Orifice Metering Device
Rows...Fins/in. 3...15 4...15
Total Face Area (sq ft) 8.89 11.11
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 FILTER 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...20 x 20 x 2
Bhp — Brake Horsepower
50T
F
Q
0
04
-0
12
549
B0
36-
12
0