FORM SSI Brine 30 HR, HS(86)

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30 HR, HS50 Hz

Brine Chiller

Multiple Compressor units with low operatingcost, standby refrigeration circuit,factory packaged

Multiple Compressor units with low operatingcost, standby refrigeration circuit,factory packaged

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VARIOUS SIZES FOR A WIDE RANGE OF Centralized Systems Controls - indicate APPLICATIONS operating compressors, systems pressures and

include a manual switch to change the starting SSI offers different sizes of industrial brine chillers for sequence of compressors to balance the wear applications ranging from 44 down to 15 F leaving brine and extend compressor life.temperature.

Carrier Semi-Hermetic Multiple Compressors- Units with water-cooled condensers are designated each with a protective crankcase heater, start and Model 30HR. The Model 30HS is a condenserless stop in sequence. This operating method enables 30HR, used with an air-cooled, remote water-cooled, or higher reliability and longer expected service life evaporative condenser. as well as lower current inrush and reduced

demand charges. Fast acting temperature SSI multiple compressor brine chillers contain sensors embedded in each compressor motor many advantages for the userwinding provide excellent protection against

Save on power bills - One or more refrigeration damaging overheating.compressors operating at full load are more efficient than one large compressor working at part load with cylinders unloaded. Four to eight-step operation matches refrigeration to the job with maximum economy. Most industrial processes work at part load most of the time. Power savings can be significant.

Close control of leaving brine temperature- Multiple Step Temperature Controller is factory set to maintain close control.

Ease of selection and engineering - You can easily select the brine chiller size and heat rejection equipment which precisely fit your job by following the simple steps outlined in inside pages. Economy in engineering is important, too.

Ease of installation - All SSI chillers are designed to fit through a 36-inch doorway. The rugged steel frame enables easy rigging and rolling and they occupy little floor space. All are completely factory engineered, assembled and tested. Only external water and electrical connections are needed on the job site.

Condenserless models require, in addition, refrigerant line connections.

Balanced wear on compressors - A manual transfer switch enables your operating personnel to periodically change the lead compressor in the starting sequence.

Superb service back-up - The standardized electrical circuiting, compressor design and time-tested sequencing control mean service personnel in your area are knowledgeable in SSI equipment, with fast access to SSI parts. Your industrial process requires dependability above all. SSI equipment and installing and servicing dealers can give you just that.

SSI Brine Cooler - has unique baffle arrangement for superb heat transfer and reduced pressure drop plus combination closed cell insulation/vapor barrier.

Circuit Breakers - manual reset, assure protection against abnormal electrical conditions and damaging single phasing of compressor motors.

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the pressure drop for the cooler of selected chiller. Insert this value in table 1. Multiply the resulting value by the correction factor from step 9. Enter the result in the selection form.

11. Calculate THR (Total Heat Rejection) using this equation:

How to select a brine chillerTHR=Q+0.285Kw

Before selecting a unit, certain information about the Where KW is power Input calculated from step 8 and Q is application must be available. You need to know if a the required refrigeration capacity in tons. water-cooled or air-cooled chiller is required. (The

water-cooled condensing temperature is approximately For water-cooled chillers follow steps 12 to 14 in 105 F; the air-cooled condensing temperature is addition.approximately 120 F.)

These four parameters are needed: 12. Determine leaving cooling water temperature by - Entering Brine Temperature subtracting 8 from SDT. Insert this value in table 1.- Leaving Brine Temperature

13. Find cooling water flow rate using this equation: - Refrigeration Capacity in tons- Cooling water Temperature (for water-cooled chillers only)

A machine selection form, table 1, helps to simplify the 14. Enter figure 5 with the cooling water flow rate and procedure. By filling in the spaces and calculating as

find the condenser pressure drop.described below, the unit with the correct capacity will be chosen. See sample in table 2, showing selection form

NOTE: Extrapolation is not allowed. If the GPM completed for a water-cooled unit.calculated from step 13 is smaller or greater than values in Fig 5, whether increase or decrease the entering 1. Enter the given facts (as enumerated above) in the cooling water temperature or increaser or decrease the selection form. SDT.

2. Using the leaving brine temperature at the bottom of 15. Your selection is now complete and all the figure 1, determine the percent of weight of ethylene

parameters for the selected chiller are available.glycol brine. Insert the result in the selection form.

3. Enter the percentage of weight of brine in figure 2 and read cooler flow correction factor (K). Insert the result in the selection form.

4. To find the flow rate of brine, use this equation.

Where GPM is brine flow rate, is change in brine temperature or brine temperature rise in Fahrenheit, K is cooler flow correction factor and Q is desired refrigeration capacity in tons.

5. Enter Figure 3 with the leaving brine temperature, find the percent of nominal correction factors for capacity and power input. Enter the resulting values in the selection form.

6. Divide the actual calculated capacity by the percent of nominal (step 5) to get nominal capacity.

7. Enter table 3, by required nominal tons from step 6 and SDT (Saturated Discharge Temperature), select the chiller which satisfies your requirements and write it's kW in table 1.

8. Multiply kW by “percent of nominal” (step 6) to get actual kW at your operating conditions.

9. Enter Figure 2, with percent by weight; find the correction factors for pressure drop. Insert the resulting value in the selection form.

10. By the GPM calculated from step 4 and Figure 4, find

Selection procedure(with example)

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Performance data30HR brine chiller rating

040

050

060

070

080

090

100

110

120

140

160

200

240

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Dimensions

Water-cooledCondenser Section

30HR, HS040, 050, 060 30HR, HS070 thru 240

Water-cooledCondenserSection