Sizing Refrigerant Lines. To determine field installed liquid and discharge line sizes, first establish the equivalent length of pipe for each line, valve, and elbow. Chiller capacity and leaving water temperature range is also required. See Figure 4 on page 21 for lengths of refrigerant valves and fittings.

Liquid Line Sizing. The liquid line should be sized as small as possible while maintaining acceptable pressure drop to minimize the refrigerant charge. Liquid line risers must not exceed 15 feet from the base of the air-cooled condenser. Horizontal runs do not require a pitch. Insulation is not required unless the line is installed in a high ambient area, i.e., boiler room or on a roof. Install a liquid line-charging valve to facilitate refrigerant charging. See Figure 5 on page 21 for sizing information. See Figure 7 on page 25 for charge determination.

Discharge Line Sizing. Discharge line sizing is based on the velocity required for sufficient oil return back to the compressor. See Figure 4: Equivalent Length in Feet for Valves and Fittingson page 24 for discharge line sizing.

 

Note:

For horizontal runs, the discharge line should be pitched downward, in the

 

 

 

direction of flow, at a rate of 1/2” for every 10 feet. This will allow oil to flow

 

 

 

towards the condenser.

Figure 4: Equivalent Length in Feet for Valves and Fittings

 

 

 

 

 

 

 

Line Size

 

Angle

 

Short

Long

OD (inches)

 

Valve

 

Radius EL

Radius EL

3/8

 

24

 

4

2.8

 

1/2

 

24

 

4.7

3.2

 

5/8

 

25

 

5.7

3.9

 

3/4

 

25

 

6.5

4.5

 

7/8

 

28

 

7.8

5.3

 

1-1/8

 

29

 

2.7

1.9

 

1-3/8

 

33

 

3.2

2.2

 

1-5/8

 

34

 

3.8

2.6

 

2-1/8

 

39

 

5.2

3.4

 

2-5/8

 

44

 

6.5

4.2

 

Figure 5: Liquid Line Sizing

GPRC-20

 

 

Liquid Line Size (OD")

 

Total Equiv.

Horizontal

 

 

 

or

Upflow

Upflow

Upflow

Length (Ft)

Downflow

1-5 Ft

6-10 Ft

11-15 Ft

25

1/2

1/2

1/2

1/2

50

1/2

1/2

1/2

1/2

75

1/2

1/2

1/2

1/2

100

1/2

1/2

1/2

5/8

125

1/2

1/2

1/2

5/8

150

1/2

1/2

5/8

5/8

175

1/2

5/8

5/8

5/8

200

1/2

5/8

5/8

5/8

225

1/2

5/8

5/8

5/8

250

5/8

5/8

5/8

5/8

275

5/8

5/8

5/8

5/8

300

5/8

5/8

5/8

5/8

GPRC-30

 

 

Liquid Line Size (OD")

 

Total Equiv.

Horizontal

 

 

 

or

Upflow

Upflow

Upflow

Length (Ft)

Downflow

1-5 Ft

6-10 Ft

11-15 Ft

25

5/8

5/8

5/8

5/8

50

5/8

5/8

5/8

5/8

75

5/8

5/8

5/8

5/8

100

5/8

5/8

5/8

5/8

125

5/8

5/8

5/8

5/8

150

5/8

5/8

5/8

5/8

175

5/8

5/8

5/8

3/4

200

5/8

5/8

5/8

3/4

225

5/8

5/8

5/8

3/4

250

5/8

5/8

3/4

3/4

275

5/8

5/8

3/4

3/4

300

5/8

5/8

3/4

3/4

GP Series Portable Chillers

Chapter 3: Installation

21 of 90

Page 20 Page 22
Page 21
Image 21
Sterling 882.93092.01 manual Towards the condenser
Page 20 Page 22

882.93092.01 specifications

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One of the main features of the Sterling 882.93092.01 is its exceptional movement technology. This watch is powered by a reliable automatic movement, ensuring accurate timekeeping without the need for battery replacements. The self-winding mechanism harnesses the natural motion of the wearer's wrist, providing a seamless and hassle-free experience.

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Overall, the Sterling 882.93092.01 is more than just a timekeeping device; it is a statement piece that showcases exceptional design, reliable technology, and outstanding craftsmanship. Whether worn at special occasions or in everyday scenarios, this watch is bound to impress and stand the test of time.
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