7
Table 1B — Physical Data (English)
LEGEND
*Indoor coil fin material/outdoor coil fin material.
†Weight of 14-in. roof curb.
NOTE: The 50TFQ units have a loss-of-charge switch located in the
liquid line.
UNIT SIZE 50TFQ
008
009
012
NOMINAL CAPACITY (tons)
7
1
/
2
8
1
/
2
10
OPERATING WEIGHT (lb)
Unit
Al/Al*
940
965
1015
Durablade Economizer
44
44
44
Roof Curb†
143
143
143
COMPRESSOR
Hermetic
Quantity
2
2
2
Oil (oz)
45 ea
54 ea
54 ea
REFRIGERANT TYPE
R-22
Operating Charge (lb-oz)
Circuit 1
5-14
7-6
7-10
Circuit 2
6- 0
8-3
7-10
OUTDOOR COIL
Enhanced Copper Tubes, Aluminum Lanced Fins, Acutrol™ Feed Device
Rows...Fins/in.
1...17
2...17
2...17
Total Face Area (sq ft)
20.50
18.00
18.30
OUTDOOR FAN
Propeller Type
Nominal Cfm
6500
6500
6500
Quantity...Diameter (in.)
2...22
2...22
2...22
Motor Hp...Rpm
1
/
4
...1100
1
/
4
...1100
1
/
4
...1100
Watts Input (Total)
600
6500
600
INDOOR COIL
Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol Feed Device
Rows...Fins/in.
3...15
3...15
3...15
Total Face Area (sq ft)
8.0
8.0
11.1
INDOOR FAN
Centrifugal Type
Quantity...Size (in.)
1...15 x 15
1...15 x 15
1...15 x 15
Type Drive
Belt
Belt
Belt
Nominal Cfm
2600
3000
3600
Motor Hp
1
1
/
2
1
1
/
2
2
Maximum Continuous Bhp
2.40
2.40
2.90
Motor Frame Size
56
56
56
Fan Rpm Range
620-880
620-880
690-900
Motor Bearing Type
Ball
Ball
Ball
Maximum Allowable Rpm
1600
1600
1600
Motor Pulley Pitch Diameter Min/Max (in.)
2.4/3.4
2.4/3.4
3.4/4.4
Nominal Motor Shaft Diameter (in.)
5
/
8
5
/
8
5
/
8
Fan Pulley Pitch Diameter (in.)
5.5
5.5
7.0
Nominal Fan Shaft Diameter (in.)
1.0
1.0
1.0
Belt, Quantity...Type...Length (in.)
1...A...48
1...A...48
1...A...51
Pulley Center Line Distance (in.)
16
16
19.5
Speed Change per Full Turn of
Moveable Pulley Flange (rpm)
50
50
41
Moveable Pulley Maximum Full Turns
From Closed Position
5
5
5
Factory Setting
5
5
5
Factory Speed Setting (rpm)
620
620
690
Fan Shaft Diameter at Pulley (in.)
1
1
1
HIGH-PRESSURE SWITCH (psig)
Standard Compressor Internal Relief (Differential)
450 ± 50
Cutout
428
Reset (Auto.)
320
LOSS-OF-CHARGE (LOW-PRESSURE) SWITCH (psig)
Cutout
7 ± 3
Reset (Auto.)
22 ± 5
FREEZE PROTECTION THERMOSTAT (F)
Opens
30 ± 5
Closes
45 ± 5
OUTDOOR-AIR INLET SCREENS
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...16 x 20 x 2
4...20 x 20 x 2
Al
—
Aluminum
Bhp
—
Brake Horsepower