Product data

33
LEGEND
*Weight of 14-in. roof curb.
†Single phase/three phase.
NOTE: The 50TFQ units have a loss-of-charge switch located in the liquid line.
UNIT SIZE 50TFQ 004 005 006 007
NOMINAL CAPACITY (tons) 3456
OPERATING WEIGHT (lb)
Unit 500 520 550 590
Economizer
Durablade 34 34 34 34
EconoMi$er 47 47 47 47
Roof Curb* 115 115 115 115
COMPRESSOR Hermetic
Quantity 1111
Oil (oz) 45 54 50 54
REFRIGERANT TYPE R-22
Operating Charge (lb-oz)
Circuit 1 5-1 6-0 8-0 11-2
Circuit 2 ————
OUTDOOR COIL Enhanced Copper Tubes, Aluminum Lanced Fins, Acutrol™ Metering Device
Rows...Fins/in. 1...17 1...17 2...17 2...17
TotalFaceArea(sq ft) 10.31 14.58 12.25 16.53
OUTDOOR FAN Propeller Type
Nominal Cfm 4000 4000 4000 4000
Quantity...Diameter (in.) 1...22.0 1...22.0 1...22.0 1...22.0
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts Input (Total) 325 325 325 325
INDOOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol Metering Device
Rows...Fins/in. 2...15 2...15 3...15 3...15
TotalFaceArea(sq ft) 4.2 4.2 5.5 5.5
INDOOR FAN Centrifugal Type
Quantity...Size (in.) Std 1...10 x 10 1...10 x 10 1...11 x 10 1...10 x 10
Alt 1...10 x 10 1...10 x 10 1...10 x 10 —
High-Static 1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10
Type Drive Std Direct Direct Direct Belt
Alt Belt Belt Belt —
High-Static Belt Belt Belt Belt
Nominal Cfm 1200 1600 2000 2400
Maximum Continuous Bhp Std .34 .75 1.20 2.40
Alt 1.00 1.00 1.30/2.40† —
High-Static 2.40 2.40 2.90 2.90
Motor Frame Size Std 48 48 48 56
Alt 48 48 56 —
High-Static 56 56 56 56
Nominal Rpm High/Low Std 860/800 1075/970 1075/970 —
Alt 1620 1620 1725 —
High-Static 1725 1725 1725 1725
Fan Rpm Range Std — — — 1070-1460
Alt 760-1000 835-1185 900-1300 —
High-Static 1075-1455 1075-1455 1300-1685 1300-1685
Motor Bearing Type Ball Ball Ball Ball
Maximum Allowable Rpm 2100 2100 2100 2100
Motor Pulley Pitch Diameter Min/Max (in.) Std — — — 2.8/3.8
Alt 1.9/2.9 1.9/2.9 2.4/3.4 —
High-Static 2.8/3.8 2.8/3.8 3.4/4.4 3.4/4.4
Nominal Motor Shaft Diameter (in.) Std
1
/
2
1
/
2
1
/
2
5
/
8
Alt
1
/
2
1
/
2
5
/
8
—
High-Static
5
/
8
5
/
8
5
/
8
5
/
8
Fan Pulley Pitch Diameter (in.) Std ———4.5
Alt 4.5 4.0 4.5 —
High-Static 4.5 4.5 4.5 4.5
Belt, Quantity...Type...Length (in.) Std — — — 1...A...40
Alt 1...A...34 1...A...34 1...A...39 —
High-Static 1...A...39 1...A...39 1...A...40 1...A...40
Pulley Center Line Distance (in.) Std — — — 14.7-15.5
Alt 10.0-12.4 10.0-12.4 14.7-15.5 —
High-Static 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) Std
———80
Alt 48 70 80 —
High-Static 65 65 60 60
Movable Pulley Maximum Full Turns
From Closed Position Std
——— 5
Alt 555—
High-Static 6655
Factory Setting Std ——— 3
Alt 333—
High-Static 3
1
/
2
3
1
/
2
3
1
/
2
3
1
/
2
Factory Speed Setting (rpm) Std — — — 1225
Alt 856 975 1060 —
High-Static 1233 1233 1396 1396
Fan Shaft Diameter at Pulley (in.)
5
/
8
5
/
8
5
/
8
5
/
8
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 ± 7
FREEZE-PROTECTION THERMOSTAT (F)
Opens 30 ± 5
Closes 45 ± 5
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
Physical data — 50TFQ004-007
50TFQ004-01250TFQ004-012