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IOM-WQ-PWR2511   1802 

EDP# 2915862 

© 2018 Watts

USA:  

North Andover, MA • Tel. (800) 224-1299 • www.watts.com 

Canada: 

Burlington, ON • Tel. (888) 208-8927 • www.wattscanada.ca

LIMITED WARRANTY:

  Certain Watts Pure Water products come with a limited warranty from Watts Regulator Co.  Other products may have no warranty or are covered by the original manufacturer’s  

warranty only.  For specific product warranty information, please visit www.watts.com or the published literature that comes with your product.  Any remedies stated in such warranties are exclusive and 

are the only remedies for breach of warranty.  

EXCEPT FOR THE APPLICABLE PRODUCT WARRANTY, IF ANY, WATTS MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED. TO THE FULLEST EXTENT 

PERMITTED BY APPLICABLE LAW, WATTS HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN NO EVENT SHALL WATTS BE LIABLE, IN CONTRACT, TORT, STRICT LIABILITY OR UNDER ANY OTHER LEGAL THEORY, FOR 

INCIDENTAL, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR PROPERTY DAMAGE, REGARDLESS OF WHETHER IT WAS INFORMED ABOUT 

THE POSSIBILITY OF SUCH DAMAGES. 

Summary of Contents for PWR2511 Series

Page 1: ...ng and selection of this system Notes Changes in operating variables are beyond the control of Watts The end user is responsible for the safe operation of this equipment The suitability of the product water for any specific application is the responsibility of the end user Successful long term performance of an RO system depends on proper operation and maintenance of the system This includes the i...

Page 2: ...e analysis as SiO2 Silica forms a coating on membrane surfaces when the concentration exceeds its solubility Additionally the solubility is highly pH and temperature dependent Silica fouling can be prevented with chemical injection and or reduc tion in recovery 2 I Introduction The separation of dissolved solids and water using RO membranes is a pressure driven temperature dependent process The me...

Page 3: ...nlet and outlet pressures of the prefilter The difference between these two gauges is the prefilter differential pressure F Pump Discharge Pressure Gauge Indicates the membrane feed pressure G Reject Flow Meter Indicates the reject flow rate in gallons per minute gpm H Product Flow Meter Indicates the product flow rate in gallons per minute gpm I Prefilter Housing Contains the RO prefilter J Autom...

Page 4: ...ound fault interrupt GFI is recommended D Startup 1 Verify that the pretreatment equipment is installed and working properly Verify that no free chlorine is present in the feed water 2 Verify that the on off switch is in the off position 3 Install a 10 five micron filter cartridge in the prefilter housing 4 Open the reject control valve completely Figure 1 item C by turning it counterclockwise 5 C...

Page 5: ...FEED WATER TEMP FEED WATER HARDNESS FEED WATER CHLORINE LEVEL PRE FILTER INLET PRESSURE PRE FILTER OUTLET PRESSURE REMARKS Note Change the prefilter when the differential pressure increases by 5 10psi over the clean differential pressure Clean the RO membrane s when the product flow drops by 15 or more See appendix ...

Page 6: ...ion of pretreatment system e g coagulation process Resin activated carbon treatment Clean with high pH detergent Increased Increased Decreased Most severe in the first stage Chlorine oxidant attack Chlorine analysis of feed Destructive element test Check chlorine feed equipment and dechlorination equipment Increased Increased Decreased Most severe in the first stage Abrasion of membrane by crystal...

Page 7: ...e feed flow 5 Record the serial numbers of the new membranes 6 Lightly lubricate the brine seals on the new membranes with clean water 7 Install the new membranes in the direction of flow with the brine seal end going in last 8 Lightly lubricate the end cap internal and external O rings with glycerin 9 Install the end caps and secure them with the U pins 10 Reconnect the tubing to the pressure ves...

Page 8: ... warranties are exclusive and are the only remedies for breach of warranty EXCEPT FOR THE APPLICABLE PRODUCT WARRANTY IF ANY WATTS MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW WATTS HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULA...

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