Sterling 25001301 Скачать руководство пользователя страница 4

 

Table 1. Fluid Cooler Internal Volume and Weight 

Fluid 

Cooler 

Fan Configuration 

Number 

of 

Fans 

Number 

of 

Rows 

Internal 
Volume 
Gallons 

Approximate 

Net Weight 

(Lbs.) 

1 x 2 

6.7 

1540 

1 x 2 

9.2 

1590 

1 x 2 

11.8 

1600 

1 x 3 

13.0 

2360 

1 x 3 

16.7 

2420 

1 x 4 

16.7 

3150 

1 x 4 

21.7 

2190 

1 x 5 

20.4 

3510 

1 x 5 

26.6 

3990 

1 x 6 

31.6 

4790 

2 x 2 

13.5 

1540 

2 x 2 

18.5 

1620 

2 x 2 

23.5 

1760 

2 x 3 

25.9 

2420 

2 x 3 

33.4 

2480 

2 x 4 

33.3 

3230 

2 x 4 

43.3 

3510 

2 x 5 

40.7 

4040 

2 x 5 

53.1 

4390 

2 x 6 

63.1 

5270 

 

Electrical Wiring 

The electrical installation should be in accordance with 

National Electrical Code, local codes and regulations. Proper 
overcurrent protection should be provided for the fan motors. 
Wiring diagrams shown are only basic and do not show fuses, 
disconnect switches, etc., which must be provided in the field. 

All standard motors have internal inherent overload 

protectors. Therefore, contactors can be used instead of 
starters requiring thermal protectors, eliminating the problem 
of furnishing the proper heating elements. 

All dry coolers or units are furnished with either single-

phase or three-phase fan motors which are identified by the 
unit dataplate. 

Electrical leads from each motor terminate at the unit 

junction box. Field connections must be made from these leads 
through a contactor, fuse and disconnect in accordance with 
local, state and national codes. 

Three-phase motors must be connected to three-phase 

power of voltage to agree with motor and unit dataplate. 

The motors are wired into a common junction box. The 

motors must be checked for proper rotation. Be sure to check 
that motor voltage and control connection agree with electric 
services furnished. 

 

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Содержание 25001301

Страница 1: ... 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 ...

Страница 2: ...is recommended The roof must be strong enough to support the weight of the unit Concrete slabs used for unit mounting should be installed level and be properly supported to prevent settling A one piece concrete slab with footings extending below the frost line is recommended The dry cooler should be located far enough away from any wall or other obstruction to provide sufficient clearance for air ...

Страница 3: ...acent units Sufficient free area should be left around and below unit to avoid air restriction to coil 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 ...

Страница 4: ...iagrams shown are only basic and do not show fuses disconnect switches etc which must be provided in the field All standard motors have internal inherent overload protectors Therefore contactors can be used instead of starters requiring thermal protectors eliminating the problem of furnishing the proper heating elements All dry coolers or units are furnished with either single phase or three phase...

Страница 5: ...5 Double Row of Fans Single Row of Fans Diagram 1 Typical Fluid Cooler Wiring Diagram Without Fan Cycle Controls ...

Страница 6: ...Double Row of Fans Single Row of Fans Diagram 2 Typical Fluid Cooler Wiring Diagram With Standard Fan Cycle Controls 6 ...

Страница 7: ...ture Any refill should be controlled so as to main tain the proper glycol to water ratio Table 3 shows pressure drops for various pipe sizes at flow rates commonly used with a typical dry cooler These pipe sizes are not necessarily always correct for the run from the condenser to the dry cooler Proper pipe size will depend on available pump head This can be determined by subtract ing from the tota...

Страница 8: ...ate inhibitor treatment must be used 4 The glycol manufacturer should provide inhibitor check service and supply additional inhibitor as required 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 Pump is selected for...

Страница 9: ...uid 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 At this joint you should close off the two hose bibbs and open the shut off valve See Diagram 3 3 Flow Adjustment Procedure Once the system is completely full of fluid start the fluid circulating pump To assure proper fluid flow a...

Страница 10: ...its placed side by side the minimum distance between units is the width of the largest unit If units are placed end to end the minimum distance between units is 4 feet Multiple Units room is left for maintenance work through access doors and panels Overhead obstructions are not permitted When the unit is in an area where it is enclosed by three walls the unit must be installed as indicated for uni...

Страница 11: ...lude part number model number and serial number of the unit involved 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 par...

Страница 12: ...Sterling Inc 2900 S 160th Street New Berlin WI 53151 262 641 8610 y Fax 262 641 8653 www sterlco com ...

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