Watts PWR4011 User Manual

Installation, Operation and Maintenance Manual
Wall Mounted Commercial Reverse Osmosis Systems Series PWR4011
PURE WATER
!
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 discon­nect 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 mat­ter 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 diagnos­ing and preventing system problems. For your reference, a typical log sheet is included in this manual.
Table Of Contents
A. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
B. RO Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
C. Pre-treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
II. Controls, Indicators, and Components
A. General System Component Identification – Figure #1 . . . . . . 3
B. Controller Drawing – Figure #2 . . . . . . . . . . . . . . . . . . . . . . . . 4
III. Operation
A. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
B. Plumbing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
C. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
D. Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
E. Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
F. Operation and Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . 5
G. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
IV. Replacement Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
V. Membrane Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
VI. Appendix
Flow Rate Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Temperature Correction Factors . . . . . . . . . . . . . . . . . . . . . . . . . 8
Series PWR4011
IOM-WQ-PWR4011
Do not use with water that is microbiologically unsafe or
Note:
of unknown quality without adequate disinfection before or after the system.
I. Introduction
The separation of dissolved solids and water using RO membranes is a pressure driven temperature dependent process. The membrane material is designed to be as permeable to water as possible, while maintaining the ability to reject dissolved solids.
The main system design parameters require the following:
• Internal flows across the membrane surface must be high enough to prevent settling of fine suspended solids on the membrane surface.
• The concentration of each dissolved ionic species must not exceed the limits of solubility anywhere in the system.
• Pre-treatment must be sufficient to eliminate chemicals that would attack the membrane materials.
A. Specifications
B. RO Overview
Reverse osmosis systems utilize semipermeable membrane ele­ments to separate the feed water into two streams. The pressurized feed water is separated into purified (product) water and concentrate (reject) water. The impurities contained in the feed water are carried to drain by the reject water.
RO Membrane
Feed Water Product Water
PWR40113012 PWR40113022 PWR40113032
Maximum Productivity (gallons per day / gallons per minute) Maximum production based on a feed water of 25°C, SDI < 3, 1000 ppm TDS, and pH
8. Individual membrane pro­ductivity may vary (± 15%). May be operated on other feed waters with reduced capacity.)
Quality (Typical Membrane Percent Rejection) Based on membrane manu­factures specifications; over­all system percent rejection may be less.
Recovery (adjustable) 50 - 75 % 50 - 75 % 50 - 75 % Membrane Size 4" x 40" 4" x 40" 4" x 40" Number Of Membranes Per
Vessel Pressure Vessel Array 1 1:1 1:1:1 Number Of Membranes 1 2 3 Prefilter (system ships with
one 5 micron cartridge)
Feed Water Connection 1" NPT 1" NPT 1" NPT Product Water Connection 1/2" Tubing 1/2" Tubing 5/8" Tubing Reject Water Connection 1/2" Tubing 1/2" Tubing 1/2" Tubing Feed Water Required
(at 50% recovery) Feed Water Pressure
(minimum)
Drain Required (maximum) 10 gpm 10 gpm 10 gpm Electrical Requirement
(Other voltages available)
Motor Horse Power 1 1 1.5 Dimensions L x H x D
(inches)
Shipping Weight
(estimated pounds)
1800 / 1.25 3600 / 2.5 5400 / 3.75
98 % 98 % 98 %
1 1 1
10" BB 10" BB 10" BB
2.5 gpm 5 gpm 7.5 gpm
20 psi 20 psi 20 psi
120 VAC 60 Hz
18 amps
41 x 51 x 18 41 x 51 x 18 49 x 51 x 18
200 250 300
120 VAC 60 Hz
18 amps
120 VAC 60 Hz
27 amps
Reject Water
C. Pretreatment
The RO feed water must be pretreated in order to prevent mem­brane damage and/or fouling. Proper pretreatment is essential for reliable operation of any RO system.
Pretreatment requirements vary depending on the nature of the feed water. Pretreatment equipment is sold separately. The most common forms of pretreatment are described below.
Media Filter - Used to remove large suspended solids (sediment) from the feed water. Backwashing the media removes the trapped particles. Backwash can be initiated by time or differential pressure.
Water Softener - Used to remove calcium and magnesium from the feed water in order to prevent hardness scaling. The potential for hardness scaling is predicted by the Langelier Saturation Index (LSI). The LSI should be zero or negative throughout the unit unless approved anti-scalents are used. Softening is the preferred method of controlling hardness scale.
Carbon Filter - Used to remove chlorine and organics from the feed water. Free chlorine will cause rapid irreversible damage to the membranes.
The residual free chlorine present in most municipal water supplies will damage the thin film composite structure of the membranes used in this unit. Carbon filtration or sodium bisulfite injection should be used to completely remove the free chlorine residual.
Chemical Injection - Typically used to feed anti-scalant, coagulant, or bisulfite into the feed water or to adjust the feed water pH.
Prefilter Cartridge - Used to remove smaller suspended solids and trap any particles that may be generated by the other pretreatment. The cartridge(s) should be replaced when the pressure drop across the housing increases 5 - 10 psig over the clean cartridge pressure drop. The effect of suspended solids is measured by the silt density index (SDI) test. An SDI of five (5) or less is specified by most mem­brane manufacturers and three (3) or less is recommended.
Iron & Manganese - Iron should be removed to less than 0.1 ppm. Manganese should be removed to less than .05 ppm. Special media filters and/or chemical treatment is commonly used.
pH - The pH is often lowered to reduce the scaling potential.
Silica: Reported on the 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 reduc­tion in recovery.
2
II. Controls, Indicators, and
Components
A. Controller - Controls the operation of the system.
B. Reject Control Valve - Controls the amount of reject flow.
C. Reject Recycle Control Valve – Controls the amount of recycle
flow.
D. Prefilter Pressure Gauges - Indicates the inlet and outlet pres-
sure of the prefilter. The difference between these two gauges is the prefilter differential pressure.
E. Pump Discharge Pressure Gauge - Indicates the pump dis-
charge pressure.
F. Reject Flow Meter - Indicates the reject flow rate in gallons per
minute (gpm).
G. Product Flow Meter - Indicates the product flow rate in gallons
per minute (gpm).
H. Prefilter Housing - Contains the RO prefilter.
I. Automatic Inlet Valve - Opens when pump is on and closes
when the pump is off.
J. Low Pressure Switch - Sends a signal to the controller if the
pump suction pressure is low.
K. RO Feed Pump - Pressurizes the RO feed water.
L. RO Membrane Vessels - Contains the RO membranes.
(See Figure 1)
III. Operation
A. Installation
1. The water supply should be sufficient to provide a minimum of 20 psig pressure at the design feed flow.
2. Proper pretreatment must be determined and installed prior to the RO system.
3. A fused high voltage disconnect switch located within 10 feet of the unit is recommended. This disconnect is not provided with the RO system.
4. Responsibility for meeting local electrical and plumbing codes lies with the owner / operator.
5. Install indoors in an area protected from freezing. Space al­lowances for the removal of the membranes from the pressure vessels should be provided.
B. Plumbing Connections
Note: It is the responsibility of the end user to ensure that the installation is done according to local codes and regulations.
1. Connect the pretreated feed water line to the inlet valve (Figure # 1 item I). A feed water shutoff valve should be located within 10 feet of the system.
2. Temporarily connect the outlet of the product water flow meter to drain. (Figure # 1 item G) The product water line should never be restricted. Membrane and/or system damage may occur if the product line is blocked.
3. Connect the outlet of the reject water flow meter to a drain. (Figure # 1 item F) The reject drain line should never be re­stricted. Membrane and/or system damage may occur if the reject drain line is blocked. An air gap must be located between the end of the drain line and the drain. The use of a standpipe or other open drain satisfies most state and local codes and allows for visual inspection and sampling.
Figure 1
3
C. Electrical
Note: It is the responsibility of the end user to ensure that the installation is done according to local codes and regulations.
1. Make sure the on/off switch located on the controller is in the off position.
2. Wire the controller to a 230-volt single-phase breaker panel (see figure 2).
PWR 4011 Controller
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. (Figure #1 item H)
4. Open the reject control valve completely (Figure # 1 item B) by turning it counterclockwise.
5. Close the reject recycle control valve completely by turning it clockwise.
6. Open the feed water shutoff valve installed in step III-B-1 above.
7. Manually open the inlet solenoid valve (figure #1 item I) by turn­ing the white lever located near the valve outlet.
8. Water will flow through the system and to drain through the reject flow meter (figure # 1 item F).
9. Manually close the inlet solenoid valve after the air has been purged from the system, or after 10 minutes, whichever occurs first.
10. Open the reject recycle valve two turns.
11. Move the controller on/off switch to the on position.
12. Adjust the reject control valves (figure # 1 items B & C) until the desired flows are achieved. Closing the reject valve increases the product flow and decreases the reject flow. Opening the reject recycle valve decreases both the reject and product flow. See the flow rate guidelines and temperature correction table in the appendix to determine the flow rates for different operating temperatures.
13. Allow the product water to flow to drain for 30 minutes.
14. Turn off the system and connect the product line to the point of use. (Figure # 1 item G) The product water line should never be restricted. Membrane and/or system damage may occur if the product line is blocked.
15. Restart the system and record the initial operating data using the log sheet in the next section.
Figure 2
E. Controller
1. When the power switch is turned on the pump will run as long as the circuit between the tank level terminals and the interlock terminals are closed.
2. To install a tank level switch, remove the jumpers from the termi­nal strip and connect the level switch to the terminals. A small plastic lever is installed in one of the terminals. This lever can be moved to each terminal to open the contacts. The RO pump and inlet valve will turn on when the level switch contacts are closed (tank not full). The RO pump and inlet valve will turn off if the level switch contacts open (tank full).
3. A pretreatment interlock switch can be installed in the same way as the tank level switch.
4. If the pump suction pressure drops below the pressure switch set point ( 5 – 8 psi) for five (5) seconds, the RO pump and inlet valve will turn off. A red light on the front of the controller will turn on to indicate that the unit has shutdown due to low pressure. Turn the controller off and back on to reset the unit. The controller is factory set to restart after a 20-minute delay. The delay time can be changed by moving the jumper cap to another position (see figure 2).
4
REMARKS
PRE FILTER
PRE FILTER
FEED WATER
FEED WATER
FEED WATER
OUTLET
PRESSURE
INLET
PRESSURE
CHLORINE LEVEL
HARDNESS
TEMP
PPM
PRODUCT TDS
PPM
FEED TDS
REJECT
PRESSURE
PRESSURE
DISCHARGE
DATE PRODUCT GPM REJECT GPM PUMP
F. Operation and Maintenance Log
Note: Change the prefilter when the differential pressure increases by 5 - 10 psi over the clean differential pressure.
Clean the RO membrane(s) when the product flow drops by 15% or more. (See appendix)
5
G. Troubleshooting
RO Troubleshooting Guide
SYMPTOMS
SALT PASSAGE PERMEATE FLOW PRESSURE DROP LOCATION POSSIBLE CAUSES VERIFICATION CORRECTIVE ACTION
Normal to increased Decreased Normal to increased Predominantly
first stage
Normal to increased Decreased Normal to increased Predominantly
first stage
Increased Decreased Increased Predominantly
last stage
Normal to moderate increase
Decreased or
Decreased Normal to moderate
increase
Can occur in any stage
Decreased Normal All stages Organic fouling Destructive testing, e.g. IR moderately increased
Increased Increased Decreased Most severe in
the first stage
Increased Increased Decreased Most severe in
the first stage
Increased Normal to increased Decreased At random O-ring leaks, End or side
Increased Normal to low Decreased All stages Conversion too high. Check flows and pressures
Metal oxide Analysis of metal ions in
cleaning solution.
Colloidal fouling SDI measurement of feed/
X-ray diffraction analysis of cleaning sol. residue.
Scaling (CaSO
4, SiO2)
BaSO
4, CaSO3,
Analysis of metal ions in cleaning sol. Check LSI of reject. Calculate maximum solubility for CaSO
2 in reject analysis.
SiO
4, BaSO4,
Biological fouling Bacteria count in permeate
and reject. Slime in pipes and vessels.
reflection analysis.
Chlorine oxidant attack Chlorine analysis of feed.
Destructive element test.
Abrasion of membrane by crystalline material
Microscopic solids analysis of feed. Destructive ele­ment test.
Probe test. Vacuum test.
seal glue leaks.
Colloidal material passage.
against design guidelines
Improved pretreatment to remove met­als. Cleaning with acid cleaners.
Optimize pretreatment system for colloid removal. Clean with high pH, anionic detergent formulation.
Increase acid addition and scale inhibitor for CaSO recovery. Clean with an acid formula­tion for CaCO
3, CaSO4 and BaSO4.
Shock dosage of sodium bisulfite. Continuous feed of low conc. Of bisulfite at reduced pH. Formaldehyde sterilization. Clean with alkaline anionic surfactant. Chlorine dosage up-stream with subs. Dechlorination. Replace cartridge filters.
Optimization of pretreatment system (e.g. coagulation process.) Resin/ activated carbon treatment. Clean with high pH detergent.
Check chlorine feed equipment and dechlorination equipment.
Improved pretreatment. Check all filters for media leakage.
Replace O-rings. Repair or replace elements.
Reduce conversion rate. Calibrate sensors. Increase analysis and data collection.
3 and CaSO4. Reduce
Motor Troubleshooting Guide
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Motor fails to start Blown fuses Replace fuses with proper type and rating
Overload trips Check and rest overload in starter. Improper power supply Check to see that power supplied agrees with motor nameplate and load factor. Open circuit in winding or control switch Indicated by humming sound when switch is closed.
Mechanical failure
Short circuited stator Indicated by blown fuses. Motor must be rewound. Poor stator coil connection Remove end bells, locate with test lamp. Rotor defective Look for broken bars or end ring. Motor may be overloaded Reduce load.
Motor Stalls One phase connection Check lines for open phase.
Wrong application Change type or size. Consult manufacturer. Overload motor Reduce load. Low motor voltage See that nameplate voltage is maintained. Check connection.
Open circuit Fuses blown, check overload relay, stator and push buttons. Motor runs and then dies down Power failure Check for loose connections to line, to fuses and to control. Motor does not come up
to speed
Not applied properly Consult supplier for proper type.
Voltage too low at motor terminals because of line drop.
Broken rotor bars or loose rotor.
Motor takes too long to acceler­ate
Open primary circuit Locate fault with testing device and repair.
Excess loading Reduce load.
Poor circuit Check for high resistance.
Defective squirrel cage rotor Replace with new rotor.
Applied voltage too low Get power company to increase power tap.
6
Check to see if motor and drive turn freely. Check bearing and lubrication.
Use higher voltage on transformer terminals or reduce load. Check connections. Check conductors for proper size.
Look for cracks near the rings. A new rotor may be required as repairs are usu­ally temporary.
Motor Troubleshooting Guide cont.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Wrong rotation Wrong sequence of phases Reverse connections at motor or at switchboard. Motor overheats while running
under load
Motor vibrates after correcting have been made
Unbalanced line current on polyphase motors during normal operation
Scraping noise Fan rubbing air shield Remove interference.
Noisy operation Airgap not uniform Check and correct bracket fits or bearing.
Hot bearings general Bent or sprung shaft Straighten or replace shaft.
Hot bearings ball Insufficient grease Maintain proper quantity of grease in bearing.
These instructions do not cover all details or variations in equipment nor provide for every possible condition to be met in connection with installation, operation or maintenance. Chart courtesy of Marathon Electric.
Overloaded Reduce load. Frame or bracket vents may be clogged with dirt and prevent proper
ventilation of motor. Motor may have one phase open Check to make sure that all leads are well connected. Grounded could Locate and repair. Unbalanced terminal voltage Check for faulty leads, connections and transformers. motor misaligned Realign Weak support Strengthen base. Coupling out of balance Balance coupling. Driven equipment unbalanced Rebalance driven equipment. Defective ball bearing Replace bearing. Bearing not in line Line properly. Balancing weights shifted Rebalance motor. Polyphase motor running single phase Check for open circuit. Excessive end play Adjust bearing or add washer. Unequal terminal volts Check leads and connections Single phase operation Check for open contacts
Fan striking insulation Clear fan. loose on bedplate Tighten holding bolts.
Rotor unbalance Rebalance.
Excessive belt pull Decrease belt tension. Pulleys too far away Move pulley closer to motor bearing. Pulley diameter too small Use larger pulleys. Misalignment Correct by realignment of drive.
Deterioration of grease, or lubricant contaminated
Excess lubricant Reduce quantity of grease: bearing should not be more than ½ filled. Overloaded bearing Check alignment, side and end thrust. Broken ball or rough races Replace bearing: first clean housing thoroughly.
Open vent holes and check for a continuous stream of air from the motor.
Remove old grease, wash bearings thoroughly in kerosene and replace with new grease.
RO System Troubleshooting
PROBLEM CORRECTIVE ACTION
General
High Product Water TDS
Membrane expanded. Replace membrane. Membrane attack by chlorine Carbon pre-filter may be exhausted. Replace with a new cartridge. Clogged pre-filter-creates pressure drop and low reject flow. Replace pre-filter cartridge. Feed pressure too low. Feed pressure must be at least 20 psi. Insufficiently flushed post-filter cartridge. Flush post-filter with pure water. Brine seal on membrane leaks. Determine if seal or o-ring is bad. Replace as needed.
No Product Water or Not Enough Product Water
Feed water shut off. Turn on feed water. Low feed pressure. Feed pressure must be at least 20 psi. Consider booster pump. Pre-filter cartridge clogged. Replace pre-filter cartridge. Membrane fouled. Determine and correct cause; replace membrane. Product check valve stuck. Replace check valve fitting. Low pump discharge pressure Open pump discharge valve, replace pump
7
IV. Replacement Parts List
A list of common replacement parts is provided below. Contact your dealer for replacement parts assistance.
ITEM NUMBER DESCRIPTION
1 Pre filter housing 10" Big Blue 2 RO Membrane Pressure Vessels 4" x 40" SS 3 Pressure Gauge, 2", 0-100 psi, Dry 4 Pressure Gauge, 2 1/2", 0-400 psi, LF 5 Flow Meter 1-5 gpm 6 Controller w/o contactor 7 Pump power relay 24 VAC (pump/motor contactor) 8 Pump & Motor 1 HP Single Phase (R14-01) 9 Pump & Motor 1.5 HP Single Phase (R14-02 & 03) 10 Low Pressure Switch, 6.5 psi 11 Inlet Solenoid Valve, 1”, 24 volt coil 12 Watts RO Membrane 13 Filter Cartridge 5 micron 10” Big Blue
V. Membrane Replacement
1. Turn off the system and close the feed water shutoff valve.
2. Disconnect the membrane feed hoses by loosing the fittings be­tween the end of the hoses and the pressure vessel end caps.
3. Remove the retaining "U" pins from the pressure vessels.
4. Push the old membrane out of the vessel in the direction of the 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. Install the membrane feed hoses.
11. Verify that all retaining "U" pins are installed.
12. Follow the start up procedure in section III-D.
Flow Direction
Membrane
Brine
Seal
VI. Appendix
The following tables are intended as a guide to determining the flow rates for the PWR4011 series RO systems. All flows are in gallons per minute (GPM).
Nominal flows for systems with a feed water Silt Density Index less than 3.
PWR40113012 PWR40113022 PWR40113032
Product 1.25 2.5 3.75 Reject 1.25 2.5 3.75
Nominal flows for systems with a feed water Silt Density Index of 3 to less than 5.
PWR40113012 PWR40113022 PWR40113032
Product 1 2.3 3.5 Reject 1 2.3 3.5
Temperature Correction Factors
CORRECTION FACTOR
30 86 1.16 29 84.2 1.13 28 82.4 1.09 27 80.6 1.06 26 78.8 1.03
25 77 1.00
24 75.2 0.97 23 73.4 0.94 22 71.6 0.92 21 69.8 0.89 20 68 0.86 19 66.2 0.84 18 64.4 0.81 17 62.6 0.79 16 60.8 0.77 15 59 0.74 14 57.2 0.72 13 55.4 0.70 12 53.6 0.68 11 51.8 0.66 10 50 0.64
9 48.2 0.62 8 46.4 0.61 7 44.6 0.59 6 42.8 0.57 5 41 0.55
Multiply the nominal product flow at 25°C by the temperature correction factor to determine the flow at various other temperatures.
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.
A Watts Wat er Techno logies Company
IOM-WQ-PWR4011 1105 EDP# 2915863 © 2011 Watts
USA: North Andover, MA • Tel. (800) 224-1299 • www.watts.com
Canada: Burlington, ON • Tel. (888) 208-8927 • www.wattscanada.ca
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