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Table 1A — Physical Data (SI)
BASE UNIT 50LJQ 008 012
NOMINAL CAPACITY (kW) 23.2 28.8
OPERATING WEIGHT (kg)
Unit 381 426
With Economizer 401 446
Roof Curb 101 101
COMPRESSOR
Hermetic
Quantity 22
Oil (ml) (each compressor) 1627 2071
REFRIGERANT TYPE
R-22
Operating Charge (kg)
Circuit 1 3.7 4.0
Circuit 2 3.2 3.9
OUTDOOR FAN
Propeller
Quantity...Diameter (mm) 1...660 1...660
Nominal L/s 2900 3260
Motor BkW...r/s .25...16.0 .25...16.0
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Fins, Acutrol™ Feed Device
Rows...Fins/m 2...669 2...669
Total Face Area (sq m) 1.9 2.3
INDOOR FAN
Centrifugal
Size (mm) 381 x 381 381 x 381
Type Drive Belt Belt
Nominal L/s 1200 1600
Motor BkW per NEC* 1.12 1.50
Maximum Continuous BkW 1.79 2.16
Motor Frame 56 56
Fan r/s Range 10.30-14.70 11.50-15.00
Motor Bearing Type Ball Ball
Maximum Fan r/s 26.7 26.7
Motor Pulley Pitch Diameter
61/86 86/112
A/B (mm)
Fan Pulley Pitch Diameter (mm) 140 178
Belt — Type...Length (mm) A...1219 A...1295
Pulley Center Line Distance (mm) 425-489 464-527
Fan Shaft Diameter at Pulley (mm) 25 25
Speed Change per Full Turn of
.88 .70
Movable Pulley Flange (r/s)
Movable Pulley Maximum Full
55
Turns from Closed Position
Factory Setting — Full Turns Open 55
Factory Speed Setting (r/s) 10.3 11.5
INDOOR COIL Enhanced Copper Tubes, Aluminum Double Wavy Fins,
Acutrol Feed Device
Rows...Fins/m 3...590 3...590
Total Face Area (sq m) .74 .93
OUTDOOR-AIR INLET SCREENS Cleanable
Quantity...Size (mm)
1...508 x 635 x 25
1...406 x 635 x 25
RETURN-AIR FILTERS Disposable
Quantity...Size (mm)
4...406 x 508 x 50 4...508 x 508 x 50
LEGEND
BkW — Brake Kilowatt
NEC — National Electrical Code (U.S.A. Standard)
*Used to determine wire sizing per NEC.
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