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Examples include: remote ON/OFF, posttreatment lockout, etc. WARNING: DO NOT CONFIGURE PRETREATMENT DEVICES FOR PURGE-ACTIVATED SHUTDOWN. THE PURGE CYCLE REQUIRES THE FEED WATER SUPPLIED BY THESE DEVICES. To establish the control loop for purge-activated shutdown, perform the following steps: WARNING: BEFORE OBTAINING ACCESS TO TERMINALS, ALL SUPPLY CIRCUITS MUST BE DISCONNECTED. STEPS 1. Establish that the remote device(s) has dry contacts available to provide the shutdown signal to the RO. 2. With power removed from the control enclosure, open enclosure. 3. Wire from the 24VDC source terminal #515 to the first remote device. Wire all additional devices in series with the first. Wire from the last remote device to terminal #1007. 23 4. Turn the AUTO/HAND Button on the Purge Button located on the OIT to the “AUTO” position. With multiple remote devices wired in series, as described above, an open contact from any of the configured devices will activate the Permeate Purge Cycle. 5.3 Chemical Pump GE Osmonics offers a stand-alone chemical pump and tank that can be used to control the pH of the RO system. Refer to the Spare Parts List (P/N 1233377) for ordering information. 5.4 Clean-In-Place Installation GE Osmonics has installed a flange connection in the inlet line of the E-CE RO machines. Refer to Table 2.5 (Connections) for connection sizes. Valved Clean-In-Place (CIP) connections are provided on permeate and concentrate outlets to allow flow back to the cleaning tank. GE Osmonics offers a stand alone CIP system, refer to the Spare Parts List (P/N 1233377). 24 6.0 TROUBLESHOOTING This troubleshooting guide can assist you in identifying common operating problems you may experience with your machine. The operator can easily correct many of these problems, however, for those that persist or are not understood you should contact the GE Osmonics Customer Support Center. Have the following information available when calling the Customer Support Center: 1. Machine installation date 2. Model number 3. Serial number 4. Detailed description of problem TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES REMEDIES Low operating pressure Insufficient feed water pressure flow Open the feed pressure, open the feed water valve, and check for restrictions. Clogged pre-filter Replace pre-filter cartridge. High flow rates Close the concentrate valve, check the permeate and concentrate flow rates and adjust if necessary. Excessive permeate flow may indicate a damage O-ring. Dirty or fouled membrane elements Flush and clean the membrane elements. Solenoid valve not opening Clean or replace the solenoid valve. Pump rotating backwards (three-phase power only) Switch any two three-phase leads to the motor starter. 25 TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES REMEDIES Low operating pressure (continued) Insufficient electrical power Check the fuses or circuit breakers; measure the voltage. Pump not operating correctly See Tonkaflo pump instructions. Low permeate flow rate Low operating pressure See possible causes for low pressure. Dirty or fouled membrane elements Flush and clean the membrane elements. Operating on cold water less than 13°C (55°F) Install a hot/cold feed water tempering valve if more permeate flow is needed. Operate with a feed water temperature of 22° - 25°C (72° -77°F). Membrane elements installed backward or damaged concentrate seal Install membrane elements in the direction of fluid flow. Flush and clean the machine immediately. Membrane elements with damaged seals should be cleaned and may be returned for repair. Flow meter inaccurate Check the flow rate manually with a stopwatch and calibrated container. 26 TROUBLESHOOTING SYMPTOM POSSIBLE CAUSES REMEDIES Low permeate flow rate (continued) Operating on cold water less than 13°C (55°F) Install a hot/cold feed water tempering valve if more permeate flow is needed. Operate with a feed water temperature of 22° - 25°C (72° -77°F). Membrane elements installed backward or damaged concentrate seal Install membrane elements in the direction of fluid flow. Flush and clean the machine immediately. Membrane elements with damaged seals should be cleaned and may be returned for repair. Low concentrate flow rate, normal or higher than normal pressure Concentrate valve plugged Remove the concentrate valve and/or disassemble the plumbing. Clean the valve. Concentrate outline line restricted Examine the concentrate line for obstructions or kinks, repair or replace the tubing. Flow meter inaccurate Check the flow rate manually with a stopwatch and calibrated container. Dirty concentrate valve Disassemble and clean the plumbing to the valve. 27 SYMPTOM High operating pressure POSSIBLE CAUSES Recycle or concentrate valve plugged Inaccurate pressure gauge Restricted flow after pump outlet Telescoped membrane element covering membrane element housing outlet port TROUBLESHOOTING REMEDIES Disassemble the plumbing to the recycle valve and remove foreign particles. Check the concentrate valve stem....

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