Direct Drive Fluid Coolers Installation and Maintenance Data

ManualsBrandsSterling ManualsFan25001301

SC3-600 March 2000 Part No. 25001301

Direct Drive

Fluid Coolers

Installation and

Maintenance Data

Table of Contents

Inspection

System Warranty

Installation ........................................2

Rigging Instructions...........................3

Internal Volume and Weight ..............4

Electrical Wiring ............................ 4-6

System Installation

Piping Installation

Glycol Charge ...................................7

Mixing Glycol and Water

Glycol Sludge Prevention

Fluid Circulating Pump....................................8

Start-up

Space and Location Requirements ............9-10

Typical Piping

In-Warranty Return Material Procedure..........11

Replacement Parts ....................................... 12

Summary of content (12 pages)

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SC3-600 March 2000 Part No. 25001301 Direct Drive Fluid Coolers Installation and Maintenance Data Table of Contents Inspection System Warranty Installation ........................................2 Rigging Instructions ...........................3 Internal Volume and Weight ..............4 Mixing Glycol and Water Glycol Sludge Prevention Fluid Circulating Pump....................................8 Start-up Space and Location Requirements ............9-10 Electrical Wiring ............................
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Inspection Responsibility should be assigned to a dependable individual at the job site to receive material. Each shipment should be carefully checked against the bill of lading. The shipping receipt should not be signed until all items listed on the bill of lading have been accounted for. Damaged material becomes the delivering carrier's responsibility, and should not be returned to the manufacturer unless prior approval is given to do so. When uncrating, care should be taken to prevent damage.
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Figure 1. Rigging Instructions. Vertical airflow type units should be located no closer than the width of the unit from a wall or other obstruction. It two or more units are to be positioned in the same area, a 3 similar distance should be maintained between adjacent units. Sufficient free area should be left around and below unit to avoid air restriction to coil.
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Table 1. Fluid Cooler Internal Volume and Weight Fluid Cooler Fan Configuration 1x2 1x2 1x2 1x3 1x3 1x4 1x4 1x5 1x5 Number of Fans 2 2 2 3 3 4 4 5 5 Number of Rows 2 3 4 3 4 3 4 3 4 1x6 6 4 31.6 4790 2x2 2x2 2x2 2x3 2x3 2x4 2x4 2x5 2x5 2 2 2 3 3 4 4 5 5 2 3 4 3 4 3 4 3 4 13.5 18.5 23.5 25.9 33.4 33.3 43.3 40.7 53.1 1540 1620 1760 2420 2480 3230 3510 4040 4390 2x6 6 4 63.1 5270 Internal Volume Gallons 6.7 9.2 11.8 13.0 16.7 16.7 21.7 20.4 26.6 Approximate Net Weight (Lbs.
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Diagram 1. Typical Fluid Cooler Wiring Diagram Without Fan Cycle Controls.
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Diagram 2. Typical Fluid Cooler Wiring Diagram With Standard Fan Cycle Controls.
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System Installation tain the proper glycol-to-water ratio. NOTE: All installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. CAUTION: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them. General Table 3 shows pressure drops for various pipe sizes at flow rates commonly used with a typical dry cooler.
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Table 4. Percentage of Ethylene Glycol to be Added by Volume. Percent % Minimum Outside Design Temperature °F 20% 30% 40% 45% 50% +15 -3 -14 -23 -38 Fluid Circulating Pump Mechanical seal type pumps must be used for glycol systems. Gland type pumps would cause glycol waste and, if used with a pressure reducing valve, will lead to dilution of the glycol mixture and eventual freeze-up. Table 4 is intended to be used as a guide only.
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Start-up 1. Prestart: Connect a pump and hose to the hose bibb away from the pump and a hose to the hose bibb closest to the pump. Begin pumping the glycol mixture into the system at FULL PRESSURE. For the return hose you should close the hose bibb so that you get only a small flow of fluid or air. This is necessary so you will build a head of fluid which will force the air from the system. Once all the air is out you will have a steady flow of only fluid.
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Walls or Obstructions The unit should be located so that air may circulate freely and not be recirculated. For proper air flow and access all sides of the unit should be a minimum of “W” away from any wall or obstruction. It is preferred that this distance be increased whenever possible. Care should be taken to see that ample room is left for maintenance work through access doors and panels. Overhead obstructions are not permitted.
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Diagram 4. Typical Piping In-Warranty Return Material Procedure Material may not be returned except by permission of authorized factory service personnel of Sterling, Inc. in New Berlin, Wisconsin. A “Return Goods” tag will be sent to be included with the returned material. Enter the required information on the tag in order to expedite handling at our factories and prompt issuance of credits. All parts shall be returned to the factory designated on the “Return Goods” tag, transportation charges prepaid.
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Sterling, Inc. 2900 S. 160th Street New Berlin, WI 53151 262-641-8610 y Fax: 262-641-8653 www.sterlco.