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u s e r m a n u a l WaterGard ™ model WG012-WG018-WG024 I N STA L L AT I O N - O P E R AT I O N - M A I N T E N A N C E 1 0 0 0 0 0 2 2 0 0 3 I S S U E D 6 /20 2 3 READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
This manual contains vital information for the proper installation Note and operation of the Marley WaterGard system. Carefully read the ® ™ manual before installation or operation and follow all instructions. Save this manual for future reference. Technical Information ....................3 System Requirements ....................4...
overview This User Manual as well as those offered separately on other components, etc., are intended to assure that the WaterGard system serves you properly for the maximum possible time. Since product warrantability may well depend upon your actions, please read this User Manual thoroughly prior to operation. This User Manual provides information regarding general installation and op- eration.
System Requirements For WaterGard to function correctly these three items are required: • A WaterGard-ready Marley LLC (liquid level control) or LLC+u water level control system is required to communicate correctly. • Municipal potable water will have residual chlorine levels that are too high...
installation Rigging The WaterGard unit should be lifted and moved by a forklift. If the WaterGard unit is lifted by a crane it should be lifted from the bottom using a platform. The unit should be secure to the platform using the anchor locations. A test lift should be done in order to determine the weight centerline.
installation Electrical Requirements Conduit and water pipes are NOT an acceptable ground. Warning • All wiring must be properly sized, rated, and connected in accordance with local, state, and national electrical codes. The system is pre-wired and tested at the factory. See provided drawing for additional details. •...
operation Startup and Operation WaterGard membranes cannot be used immediately, they must Note be filled with feedwater and allowed to soak for a minimum of 30 minutes, see step 10. 1. Connect the carbon filter (if present) to your potable water supply. The carbon filter will need to be flushed for 30 minutes before being piped into WaterGard.
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operation 12. Once the pump has started, membrane inlet (pump) pressure should never exceed 135 psi. Use the valve on the discharge side of the pump to adjust the pressure to 105 psi. If pressures over 135 psi are observed it could be an indication of membrane fouling.
operation System Shutdown Less than 30 days. Press and hold the SYSTEM ON/OFF key (the display will show POWER OFF). More than 30 days. Drain the system of as much water as possible by break- ing unions or removing tubes. On startup, follow Startup procedure. Automatic System Standby and Restart System will automatically go into standby during the following conditions: •...
operation Operating Status Messages The main operating status of the unit is shown on the top line of the display: POWER OFF: The unit is off. RO RUNNING: WaterGard unit is operating. RO STARTING: WaterGard unit is starting up. TANK FULL: The unit is shut down due to a collection basin full condition. PRETREAT: The Unit is shut down due to a pretreat lockout condition.
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If any warnings are active, the active warnings will alternate with normal dis- plays for the bottom line. Tank Full Operation—The unit can be operated with either the Marley LLC or Marley LLC+u water level controls. Refer to the WaterGard specific LLC User Manual for more information.
operation Alarm Output—The board Divert/Alarm has been programmed to operate as Standard Setpoints on page 20 shows, the relay will energize whenever a shutdown condition occurs. The relay will remain energized if the shutdown condition is active. S1 should be left as a powered output for the bypass feature to function.
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operation Permeate Conductivity Fault: Permeate conductivity is higher than the alarm setpoint Line 1—Service Fault Line 2—Permeate TDS xxx ppm or Permeate Cond xxx µS Line 3—Alarm SP xxx ppm or Alarm SP xxx µS Line 4—To Reset Push OFF/ON Conductivity Probe Error messages: Line 2 —Over-range Measurement is out of range for the circuit, probe may also be shorted...
operation Controller Adjustment With the system ON, press and hold the UP and DOWN arrows and then press System On/Off. Figure 7 shows the settings that can be changed at ➠ the controller. RO Presets Program 1 RO Presets Program 1 VALUES 1, 2, 3, 4 ^v for Other Menus...
The controller has been calibrated prior to shipment. It may be necessary to periodically calibrate the conductivity. If the controller should require calibra- tion, follow the instructions below. Please contact your local Marley sales representative, if you have any questions regarding the procedure.
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operation The probe calibration must be performed using solutions with con- Note ductivity of less than 900 ppm or μS. The conductivity calibration circuit will behave erratically if you attempt to calibrate using a higher value. When using a standard calibration solution, the NaCl ppm value can be used in place of the μs value if desired.
Idle Flush: Duration Seconds Timed Manual Flush Seconds Alarm/Divert Relay* Alarm Alarm Alarm Alarm WQ/Conductivity Shutdown Timer (0 = No Shutdown) * Can be changed from controller. All other parameters require software changes. Contact your local Marley sales representative for assistance.
troubleshooting Only those persons who have read the complete user manual or who Caution have received authorization from the facility director should attempt to troubleshoot and/or repair the WaterGard system. Trouble Cause Remedy WaterGard not supplied power Reestablish power. WaterGard will Circuit breaker tripped Reset the breaker.
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controller troubleshooting Hazardous voltages are present when power is applied to the unit. Warning Care should be taken when troubleshooting any of the input power or output circuits. When disconnecting or connecting any board or accessory, verify that power is off. Before contacting SPX Cooling for technical help, verify the programming of all setpoints, check the display and the status of all lights and indicators.
maintenance Servicing If any component of the water treatment system is changed or re- Note placed, the user should conduct appropriate tests to ensure that the revised system meets all standards to which it was initially tested. Always remove WaterGard from the power source and turn off the Warning water prior to any maintenance activities! 1.
maintenance Typical Service Intervals Task Frequency Estimated Replacement Time Yearly or as quality degrades to more than 35% of Membrane replacement 15 minutes per membrane incoming conductivity, which- ever comes first. Quarterly or when ∆P across Sediment filter replacement 5 minutes Sediment filter is ≥10 psi.
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maintenance Opening the Vessel 1. Relieve Pressure—Shut off feedwater supply and drain the unit of water by using the product and inlet sample ports. Check to ensure 0 psi on the sediment filter gauges. 2. Disconnect Permeate Port—Disconnect permeate piping as required at nearest union joints, being careful not to place undue stress on the threaded connections of the permeate port(s).
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maintenance 5. Removing Head Assembly—Using a rubber mallet tap the elliptical head lightly. Do not use a metal hammer to tap the bearing plate. • Carefully rock the head assembly back and forth to release the seal (care should be taken to avoid placing too much stress on the elliptical head threaded connection where the union and nipple assembly is connected.) •...
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maintenance • Option: Using an approximate 50% mixture of glycerin in water, lubricate the inside of the vessel. This may be accomplished using a suitably sized swab soaked in the mixture. This procedure will ease membrane element loading and reduce chance of scratching the vessel bore. Permeate Feed Concentrate...
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maintenance Closing the vessel Read all guidelines in this section before attempting to close the Caution vessel. Check the head assembly for corrosion as described in the head rebuilding section. Corroded parts can result in catastrophic failure. Do not pressurize vessel until after visual inspection to ensure that retaining ring are fully seated.
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maintenance • Begin installing the retaining ring into the groove as you rotate your hand around the inside of the shell. See Figure 14. Figure 14 • Continue until the entire retaining ring is installed in the groove. • Verify that the retaining ring is fully seated in the groove before proceeding. 5.
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maintenance Sediment Filter Replacement 1. Shut off feedwater supply and relieve pressure on the sediment filter housing by opening the inlet sample port. Check to ensure 0 psi on the sediment filter gauges. 2. Unscrew bolt on V-band clamp and remove top cap. 3.
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maintenance Once Unions are Break Union Broken, Rotate Ring Connection Counterclockwise. Remove this Portion of Piping and Basket as One Unit. Prewash Outlet Valve Break Union Connection Outlet Valve Bypass Valve Figure 15 Removal of Carbon Basket Assembly...
parts list Part Number Description WaterGard Membrane 2800085 Replacement Membrane 8" x 40" 2800124 Replacement Head Seal 2800058 Plumbers Silicone Grease 2800065 Test strips for Measuring Residual Chlorine Sediment Filter 2800089 5-micron Sediment Filter Cartridge 2800091 Sediment Filter Gasket Carbon Filter (option) 2800093 3 cu ft Carbon Tank - WG012 and WG018 2800096...
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