Air Cooled Models

 

Table 6

Equivalent lengths (feet) for various pipe fittings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copper Pipe

90 Degree

90 Degree

45 Degree

 

Gate

Globe

Angle

 

 

O.D. in.

 

Elbow Copper

Elbow Cast

Elbow

Tee

Valve

Valve

Valve

 

1/2

 

0.8

1.3

0.4

2.5

0.26

7.0

4.0

 

 

5/8

 

0.9

1.4

0.5

2.5

0.28

9.5

5.0

 

 

3/4

 

1.0

1.5

0.6

2.5

0.3

12.0

6.5

 

 

7/8

 

1.45

1.8

0.8

3.6

0.36

17.2

9.5

 

 

1-1/8

 

1.85

2.2

1.0

4.6

0.48

22.5

12.0

 

 

1-3/8

 

2.4

2.9

1.3

6.4

0.65

32.0

16.0

 

 

1-5/8

 

2.9

3.5

1.6

7.2

0.72

36.0

19.5

 

Refrigerant trap = 4 times equivalent length of pipe per this table.

Table 7

Indoor unit refrigerant charge lbs (kg) R22 or R407C (per unit serial tag)

 

 

R22

R407C

 

 

 

 

 

 

 

 

Approximate Charge

Approximate Charge

 

Model

 

lbs (kg)

lbs (kg)

 

42A/40A

 

1.0 (0.45)

0.9 (0.4)

 

67A/65A

 

1.5 (0.68)

1.4 (0.6)

 

Table 8

Line charges - refrigerant per 100 ft (30 m) of Type "L" copper tube

 

 

 

R22

R407C

 

 

 

 

 

 

 

 

 

 

 

Liquid Line

 

Hot Gas Line

Liquid Line

Hot Gas Line

 

O.D.

 

lbs (kg)

 

lbs (kg)

lbs (kg)

lbs (kg)

 

1/2"

 

7.3 (3.3)

 

1.3 (0.6)

6.9 (2.9)

-

 

5/8"

 

11.7 (5.3)

 

2.1 (1.0)

11.0 (4.6)

2.2 (0.9)

 

3/4"

 

16.6 (7.5)

 

3.0 (1.4)

15.7 (6.5)

3.1 (1.3)

 

7/8"

 

24.4 (11.1)

 

4.4 (2.0)

23.0 (9.6)

4.5 (1.9)

 

Table 9

Condenser refrigerant (per serial tag)

 

 

 

 

 

 

 

 

 

R22

R407C

 

 

 

 

Approximate Charge

Approximate Charge

 

lbs (kg)

lbs (kg)

Model

 

 

 

 

 

Fan Speed

 

Lee-Temp*

Fan Speed

Lee-Temp*

 

 

 

 

 

 

083

5 (2.27)

 

27 (12.3)

8 (3 )

25 (12)

104

8 (3.63)

 

39 (17.7)

9 (4)

37 (17)

*Charge includes the receiver charge.

3.4Fan Speed Control Systems

Fan Speed Control provides an infinite number of speed variations on specially designed, permanent split-capacitor motors. The control module varies the air quantity passing over the condenser coil by monitoring refrigerant pressure.

3.4.1Materials Supplied

1.Built-in pre-wired condenser control box

2.Air cooled condenser

3.Piping access cover to be reinstalled when piping is complete

4.Bolts (four per leg) 3/8" x 5/8"

5.Terminal block for two-wire, 24-volt interlock connection between unit and condenser

6.Condenser legs, four on one-fan models

19

Page 25
Image 25
Liebert 3000 Fan Speed Control Systems, Materials Supplied, Equivalent lengths feet for various pipe fittings, 083 104

3000 specifications

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