North Star NSC22 Installation And Operation Manual

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North Star NSC22 Installation And Operation Manual Manual pdf 3 page image

3Specifications & Performance ClaimsModel NSC22 Model NSC31Model Code nS22 nS31Rated Softening Capacity (Grains @ Salt Dose)8,700 @ 1.9 lbs.18,500 @ 6.2 lbs.22,100 @ 10.4 lbs.12,300 @ 2.4 lbs.26,200 @ 7.7 lbs.31,300 @ 12.9 lbs.Rated Efficiency (Grains/Pound of Salt @ Minimum Salt Dose) 4,474 @ 1.9 lbs. 5,090 @ 2.4 lbs.Water Used During Regeneration @ Minimum Salt Dose 3.0 gal. / 1,000 grains 2.5 gal. / 1,000 grainsTotal Water Used Per Regeneration @ Maximum Salt Dose 30.4 gallons 31.1 gallonsRated Service Flow Rate 7.2 gpm 7.2 gpmAmount of High Capacity Ion Exchange Resin 0.65 cu. ft. 0.81 cu. ft.Pressure Drop at Rated Service Flow 13.7 psig 14.9 psigIntermittent Flow Rate @ 15 psi* 7.6 gpm 7.3 gpmWater Supply Max. Hardness 95 gpg 110 gpgWater Supply Max. Clear Water Iron 6 ppm** 8 ppm**Water Supply Pressure Limits (minimum / maximum) 20 - 125 psi (138 - 862 kPa)***Water Temperature Limits (minimum / maximum) 40 - 120 °F (5 - 49 °C)Minimum Water Supply Flow Rate 3 gpm (11.4 lpm)Maximum Drain Flow Rate 2.0 gpm (7.6 lpm)These models are efficiency rated. The efficiency rating is valid only at the minimum salt dose. These softenershave a demand initiated regeneration (D.I.R.) feature that complies with specific performance specifications intendedto minimize the amount of regenerant brine and water used in their operation.These softeners have a rated softener efficiency of not less than 3,350 grains of total hardness exchange per poundof salt (based on sodium chloride) and shall not deliver more salt than their listed rating or be operated at a sus-tained maximum service flow rate greater than their listed rating. These softeners have been proven to deliver softwater for at least ten continuous minutes at the rated service flow rate. The rated salt efficiency is measured by lab-oratory tests described in NSF/ANSI Standard 44. These tests represent the maximum possible efficiency that thesystem can achieve. Operational efficiency is the actual efficiency after the system has been installed. It is typicallyless than the rated efficiency, due to individual application factors including water hardness, water usage, and othercontaminants that reduce a softener's capacity.Questions? Contact us at: info@northstarwater.com or visit www.northstarwater.com* Intermittent flow rate does not represent the maximum service flow rate used for determining the softeners’ ratedcapacity and efficiency. Continuous operation at flow rates greater than the service flow rate may affect capacityand efficiency performance.** Capacity to reduce clear water iron is substantiated by laboratory test data. State of Wisconsin requires addi-tional treatment if water supply contains clear water iron exceeding 5 ppm.***Canada working pressure limits: 1.4 - 7.0 kg/cm 2 .These systems conform to NSF/ANSI 44 for the specific performance claims as verified and substantiated bytest data.Variable Salt Dose: The salt dose is selected by the electronic controls at regeneration time based on the amountneeded.