background image

IOM-WQ-PWR2511

Series PWR2511

Table Of Contents

I. Introduction

 

A. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

 

B. RO Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

 

C. Pre-treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

II.  Controls, Indicators, and Components  . . . . . . . . . . . . . . . . . . 3
III. Operation

 

A. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

 

B. Plumbing Connections  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

 

C. Electrical Connections  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

 

D. Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

 

E. Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

 

F. Operation and Maintenance Log  . . . . . . . . . . . . . . . . . . . . . . . 5

 

G. Troubleshooting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

IV.  Replacement Parts List

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

V.  Membrane Replacement

  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

VI. Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

 

Temperature Correction Factors  . . . . . . . . . . . . . . . . . . . . . . . . . 7

 

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation, Operation  
and Maintenance Manual

Wall Mounted Commercial Reverse Osmosis Systems
Series PWR2511

•  Do not use where the water is microbiologically unsafe.
•   Pretreatment must be sufficient to eliminate chemicals that 

would attack the membrane materials.

•   Always turn off the unit, shut off the feed water, and discon-

nect the electrical power when working on the unit.

•  Never allow the pump to run dry.
•  Never start the pump with the reject valve closed.
•   Never allow the unit to freeze or operate with a feed water  

temperature above 100°F.

Save manual for future reference.

Please refer to Section 6 of this manual for operating parameters 

according to your specific feed water Silt Density Index (SDI). For all 

other settings according to your specific feed water quality, please 

contact your Watts representative. A chemical analysis of the feed 

water should be conducted prior to the initial sizing 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 initial system startup and operational startups and shutdowns. 

Prevention of fouling or scaling of the membranes is not only a mat-

ter of system design, but also a matter of proper operation. Record 

keeping and data normalization are required in order to know the 

actual system performance and to enable corrective measures when 

necessary. Complete and accurate records are also required in case 

of a system performance warranty claim.
Changes in the operating parameters of an RO system can be 

caused by changes in the feed water or can be a sign of trouble. 

Maintaining an operation and maintenance log is crucial in diagnos-

ing and preventing system problems. For your reference, a typical log 

sheet is included in this manual.

PURE WATER

Note:

 Do not use with water that is microbiologically unsafe or 

of unknown quality without adequate disinfection before or after 

the system.

WARNING

!

Please read carefully before proceeding with  

installation. Your failure to follow any attached  

instructions or operating parameters may lead to 

the product’s failure, which can cause property 

damage and/or personal injury.  
Keep this Manual for future reference.

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...

Reviews: