Watts PWR4024 - Manual

IOM-WQ-PWR4024
Series PWR4024
Installation, Operation
and Maintenance Manual
Commercial Reverse Osmosis Systems
Series PWR4024
!
CAUTION: Please read the entire manual before proceed-
ing with the installation and startup. 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.
• 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
Table Of Contents
I. Introduction
A. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
B. RO Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
C. Pre-treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
II. Controls, Indicators, and Components
A. General System Component Identification – Figure #1 . . . . . . 3
B. Controller Drawing – Figure #2 . . . . . . . . . . . . . . . . . . . . . . . . 4
III. Operation
A. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
B. Plumbing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
C. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
D. Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
E. Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
F. Operation and Maintenance Log . . . . . . . . . . . . . . . . . . . . . . 10
G. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13
IV. Replacement Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
V. Membrane Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
VI. Appendix
Flow Rate Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Temperature Correction Factors . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Note: Do not use with water that is microbiologically unsafe or
of unknown quality without adequate disinfection before or after
the system.