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PHYSICAL DATA
549B036-072
LEGEND
BASE UNIT 549B 036 048 060 072
NOMINAL CAPACITY (tons)
34 5 6
OPERATING WEIGHT (lb)
Unit
500 550 590 630
Durablade Economizer
34 34 34 34
EconoMi$er
47 47 47 47
Roof Curb
115 115 115 115
COMPRESSOR
Scroll
Quantity
11 1 1
Oil (oz)
42 53 50 60
REFRIGERANT TYPE
R-22
Operating Charge (lb)
6.9 9.6 10.8 17.7
OUTDOOR FAN
Propeller
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
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 16.53
INDOOR FAN
Centrifugal
Size (in.)
10 x 10 10 x 10 10 x 10 10 x 10
Type Drive
Belt Belt Belt Belt
Nominal Cfm
1200 1600 2000 2400
Maximum Continuous Bhp
1.20 1.20 1.80 2.40
Motor Frame
48 48 48 56
Fan Rpm
760-1090 840-1185 1020-1460 1120-1585
Motor Bearing Type
Ball Ball Ball Ball
Maximum Fan Rpm
1725 1725 1725 1725
Motor Pulley Pitch Diameter A/B (in.)
1.9/2.9 1.9/2.9 2.4/3.4 2.4/3.4
Fan Pulley Pitch Diameter (in.)
4.5 4.0 4.0 3.7
Belt — Type...Length (in.)
A...33 A...33 A...38 A...38
Pulley Center Line Distance (in.)
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)
65 70 93 93
Movable Pulley Maximum Full Turns
From Closed Position
55 6 5
Factory Setting Full Turns Open
33 3 3
Factory Speed Setting (rpm)
890 980 1240 1305
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 4...15 4...15
Total Face Area (sq ft)
5.5 5.5 5.5 5.5
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
Quantity...Size (in.)
1...20 x 24 x 1
RETURN-AIR FILTERS
Throwaway
Quantity...Size (in.)
2...16 x 25 x 2
Bhp —
Brake Horsepower
50TFQ004-012
549B036-120