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Table 1B — Physical Data (English)
BASE UNIT 50QJ 008 012
NOMINAL CAPACITY (tons) 6.6 8.2
OPERATING WEIGHT (lb)
Unit 840 940
With Economizer 884 984
Roof Curb 223 223
COMPRESSOR
Hermetic
Quantity 22
Oil (fluid oz) (each compressor) 55 70
REFRIGERANT TYPE
R-22
Operating Charge (lb-oz)
Circuit 1 8-2 8-14
Circuit 2 7-0 8-10
OUTDOOR FAN
Propeller
Quantity...Diameter (in.) 1...26 1...26
Nominal Cfm 6100 6900
Motor Hp...Rpm
1
⁄
3
...960
1
⁄
3
...960
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Fins, Acutrol™ Feed Device
Rows...Fins/in. 2...17 2...17
Total Face Area (sq ft) 20.5 25.0
INDOOR FAN
Centrifugal
Size (in.) 15x15 15x15
Type Drive Belt Belt
Nominal Cfm 2600 3400
Horsepower per NEC* 1.5 2.0
Maximum Continuous Bhp 2.4 2.9
Motor Frame 56 56
Fan Rpm Range 622-882 692-896
Motor Bearing Type Ball Ball
Maximum Fan Rpm 1600 1600
Motor Pulley Pitch Diameter
2.4/3.4 3.4/4.4
A/B (in.)
Fan Pulley Pitch Diameter (in.) 5.5 7.0
Belt — Type...Length (in.) A...48 A...51
Pulley Center Line Distance (in.) 16.75-19.25 18.25-20.75
Fan Shaft Diameter at Pulley (in.) 11
Speed Change per Full Turn of
52 42
Movable Pulley Flange (rpm)
Movable Pulley Maximum Full
55
Turns from Closed Position
Factory Setting — Full Turns Open 55
Factory Speed Setting (Rpm) 620 690
INDOOR COIL Enhanced Copper Tubes, Aluminum Double Wavy Fins,
Acutrol Feed Device
Rows...Fins/in. 3...15 3...15
Total Face Area (sq ft) 8.0 10.0
OUTDOOR-AIR INLET SCREENS Cleanable
Quantity...Size (in.)
1...20 x 25 x 1
1...16 x 25 x 1
RETURN-AIR FILTERS
Disposable
Quantity...Size (in.) 4...16 x 20 x 2 4...20 x 20 x 2
LEGEND
Bhp — Brake Horsepower
NEC — National Electrical Code (U.S.A. Standard)
*Used to determine wire sizing per NEC.
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