EcoWater CHC Series Service And Troubleshooting Manual
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EcoWater CHC Series Service And Troubleshooting Manual

EcoWater CHC Series Service And Troubleshooting Manual

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Summary of Contents for EcoWater CHC Series

  • Page 1 Basics of Service and Troubleshooting...
  • Page 2 This information is not for use as customer documentation and should not be modified as such without the written permission of EcoWater CHC, Schertz, Texas. EcoWater CHC Systems...

  • Page 3: Table Of Contents

    Table of Contents WARNINGS & PRECAUTIONS ....................6 TERMINOLOGY ...........................8 THEORY OF OPERATION......................19 CHC Water Treatment System- ..........Error! Bookmark not defined. Filtration System Utilizing Forsta Auto Filters Systems- ..Error! Bookmark not defined. HOW CHC WORKS.........................22 TEST EQIPMENT and PPE ......................24 Digital Volt Meter-........................34 AC Voltage Checker .........................37 Conductivity Pocket Meter .......................39 Ultrasonic Flow Meter ......................40...
  • Page 4 5.3.1 Gauge Problems-........................51 5.3.2 Low Pump (s) Pressures- ....................51 5.3.3 High Pump Pressures-......................52 5.3.4 Differential pressure too High or too Low- ...............52 5.3.5 Filter Back Wash Failures- ....................52 Frequent pump seal Failures- ....................59 Issues with Actuators and Solenoids-..................60 5.5.1 Actuator Failure-........................60 5.5.2 Actuator Leaks-........................60 5.5.3...
  • Page 5 5.10.1 Hard Scale..........................70 5.10.2 Soft Scale ...........................72 5.10.3 Silica Scale.........................73 5.10.4 Ingestion Scale ........................74 5.10.5 Overspray Scale .........................74 5.10.6 System Cycling Fill Scale,....................74 5.10.7 Cotton like Fill Scale ......................75 REFERENCES ..........................78 Corrosion Coupons........................79 Conductivity Controllers (Walchem and LMI).................82 Timed Power ON/OFF Cycling of CHC Treatment ..............85 Separator Purge Timer ......................86 Freeze Protection Options ......................87 Monthly Service Procedure.......................89...

  • Page 6: Warnings & Precautions

    1.0 WARNINGS & PRECAUTIONS When trouble shooting a system it is very important to remember the following: HIGH VOLTAGE, Electrical Shock and or WARNIN Death can occur if safety is not your #1 priority. Main Electrical Service is normally 480 VAC Control Voltage is 120 VAC or 24VDC Use Caution When Servicing This Unit WARNIN...
  • Page 7 Shutting Down the CHC System upon EMERGENCY. 1. Turn the power disconnect OFF on the CHC Motor Controller. Verify the CHC pump has stopped operation (look for motor rotation, and listen for the discontinuation of the standard CHC operational sound). 2.

  • Page 8: Terminology

    It is important to identify what type of actuator you need, some may be air operated (ZGF) or electrical. Call EcoWater CHC while you are looking at the actuator to make sure you get the appropriate replacement parts. An actuator can be powered by Air, AC voltage or DC voltage and it is important to understand what you have BEFORE you get a replacement.
  • Page 9 bag filter housing you have to be able to order appropriate bags for replacement purposes. CHC recommends the use of dual bags within these systems. If used in a side stream arrangement, we recommend approximately 20 % of the filtration water flow. If the Bag Filter is in line (100% of flow), then a bypass system must be utilized to allow filtration flow to continue when the bag blinds off.
  • Page 10 Clearance for Electrical Panels- In general we must meet the local regulations at the customer site. However EcoWater CHC recommends at least 36” clearance in front of the motor starter for electrical servicing. Cooling Towers- A cooling tower is part of a system that uses water as a cooling agent within a larger system.
  • Page 11 The report is then completed with any appropriate test results (Dip Slide Test), any appropriate comments and then sent to EcoWater CHC at the end of the week for processing. A Service Order will be completed at EcoWater that will include any Water Analysis results and recommendations for continued service in the future.
  • Page 12 48 hours for results to be taken. Results of the test should be recorded on the copy of the Customer Service Report that is sent to EcoWater CHC at the end of the week. Please refer to the paper “Dip Slide Testing”...
  • Page 13 (cbm) or on the lower edge of the dial. EcoWater CHC requires that the replacement gauge’s range be at least 20% larger than the expected pressure being measured (if you expect 90 psi, then the gauge’s maximum range should be 120 psi.)
  • Page 14 Orival Filter- Similar to the Amiad and the Forsta Filters it also is a screen filter that is utilized by EcoWater CHC to remove lighter than water particles from the filter flow. Their housings are always constructed of carbon steel and are orange in color.
  • Page 15 All of our systems are warranted against defects in parts for a period of one year and labor for 90 days. During the first year after installation, EcoWater CHC will support the system by completing maintenance visits to check up on the system’s operation.
  • Page 16 The setting of the amperage trip point is calculated by the motor’s amperage x 1.15. Timer- EcoWater CHC systems have used a timer to activate the purge actuator for the evacuation of solids from the centrifugal separator. This timer has controls that allow for the setting of the ON and OFF times, please refer to the reference section of this manual for specific instructions on the set up of the Timers used by the CHC treatment systems.
  • Page 17 The water analysis requires an appropriate water sample to be taken and then sent to EcoWater CHC for analysis. Follow the Water Sampling Procedure to secure appropriate water samples. The water samples can be sent to EcoWater upon acquisition, or can be sent at the end of the week for convenience.
  • Page 18 Most ZGF systems require at least 115 TDH pumps to guarantee adequate flow force for back washing. For more information go to www.ZeroGravityFilters.com. EcoWater CHC has used the Easy Clean (single or double element systems), Phoenix (set of 6 elements, they also come in a...

  • Page 19: Theory Of Operation

    3.0 THEORY OF OPERATION EcoWater CHC supplies both water treatment and filtration systems. CHC Water Treatment System- The CHC Water Treatment System consists of a pump and treatment chamber. As water enters into the main suction pipe it passes through the basket strainer. The basket strainer is designed to remove any large particles from the water before it enters the CHC pump.
  • Page 20 Discharge Assembly Toroidal Conductivity- EcoWater has chosen to utilize a Toroidal Conductivity Sensor. Conductivity is a measurement of the dissolved solids within water. This sensor is utilized to help control the overall maximum conductivity of the system water. The advantage of this technology is measurement without any electrical contact between the electrode and the process fluid.
  • Page 21 Monitoring (Optional)- Ecowater has chosen to utilize an industrial pH probe for this measurement. A pH meter is an electronic instrument used for measuring the pH (acidity or alkalinity) of a liquid. The pH probe measures pH as the activity of hydrogen cations surrounding a thin-walled glass bulb at its tip. The probe produces a small voltage (about 0.06 volt per pH unit) that is measured and displayed as pH units...

  • Page 22: How Chc Works

    WORKS CHC chemical-free cooling water treatment has been in service over 15 years and is unlike all other non-chemical technologies currently available. The technology essentially consists of two side-stream water loops typically connected into the sump or basin of the cooling tower/evaporative condenser. One loop acts as a side stream filter.
  • Page 23 stabilized (at atmospheric pressure) and the velocity of the water slows down. Submicron particles of calcium carbonate called colloids are formed and flow with the water. These become thermodynamically favored incubation sites to grow crystals composed of Ca and HCO ions versus metal surfaces in the system.

  • Page 24: Test Eqipment And Ppe

    EcoWater CHC REQUIRES you to follow all safety regulations as set forth by EcoWater management and requires you to follow all training and or instruction you have been given by EcoWater. If you are found not following this instruction, you will be warned only once, upon continued failure to follow our requirements, you will be terminated.
  • Page 25 Site Safety- Site Safety is a very important part of your work ethics when working with EcoWater CHC. Site Safety is required when you go to ANY Customer Site. You MUST verify the following upon any attempt to work at a customer site: 1.
  • Page 26 MUST use the appropriate eye wear. If you have prescription safety eye wear, you MUST use your prescribed eye wear whenever possible. If using any strong chemicals, refer to the MSDS sheet or contact EcoWater CHC for further PPE requirements that must be used. Respirators, face shields, protective clothing and gloves MAY BE REQUIRED AND MUST be used if recommended by the MSDS sheet or by EcoWater.
  • Page 27 You WILL NOT use any test equipment with defective leads. You WILL use safety glasses when troubleshooting electrical circuits. Follow all safety guidelines as instructed to you during your electrical safety training. If any problems are encountered you must notify EcoWater CHC management as well as the customer.
  • Page 28 Once the Hot Work is completed you must clean up any debris and or safety gear and make sure the site is better than it may have been when you arrived. If any problems are encountered you must notify EcoWater CHC management as well as the customer.
  • Page 29 Lock Out, Tag Out Procedure This procedure establishes the minimum requirements for the lockout of energy isolating devices whenever maintenance or servicing is done on machines or equipment. It shall be used to ensure that the machine or equipment is stopped, isolated from all potentially hazardous energy sources and locked out before employees perform any servicing or maintenance where the unexpected energization or start-up of the machine or equipment or release of stored energy could cause injury.
  • Page 30 (5) Notify affected employees that the servicing or maintenance is completed and the machine or equipment is ready for used. If any problems are encountered you must notify EcoWater CHC management as well as the customer. Confined Spaces This procedure establishes the minimum requirements for the safe entry into a confined space.
  • Page 31 Once the work is completed you must clean up any debris and or safety gear and make sure the site is better than it may have been when you arrived. If any problems are encountered you must notify EcoWater CHC management as well as the customer.
  • Page 32 Once the work is completed you must clean up any debris and or safety gear and make sure the site is better than it may have been when you arrived. If any problems are encountered you must notify EcoWater CHC management as well as the customer.
  • Page 33 EcoWater CHC employee. Upon any mishap, you must contact the customer and any other personnel the customer directs you to IMEADIATELY. You must also contact EcoWater CHC Management IMEADIATELY. If you are unable to contact the customer, call 911 as needed.

  • Page 34: Digital Volt Meter

    In most cases a written explanation of the Mishap and/or Incident will be required, please provide as requested. Digital Volt Meter- The DVM is a meter that can be used to Test Voltages, Amperages, component continuity as well as other uses. A DVM should not be used if any physical damage to the device or its probes have been found.
  • Page 35 to the circuit and you should never verify the continuity of an object that is placed on a conductive surface. Safely Using the DVM-  Never use any DVM that is damaged or its probes are damaged.  Never measure voltages or amperages if it is raining or you are standing in water. ...

  • Page 38: Ac Voltage Checker

    AC Voltage Checker The AC Voltage Checker is a pen sized tester used to quickly verify if AC voltage is present without having to make an electrical connection. AC Voltage Checkers come in many shapes and sizes, but the most common looks like this one: As the yellow tip is passed close to a wire with AC power applied the tip will light and a sound may be...

  • Page 39: Conductivity Pocket Meter

    Conductivity Pocket Meter The conductivity meter is a wonderful piece of test equipment, as long as you use it correctly and maintain it. It can be used to measure the conductivity of the make up water, verify a skids conductivity meter’s accuracy, as well as check ONE Shot Calibration Solution for possible errors. You must be aware of the units of measure that your tester is using when verifying the skids reading.

  • Page 40: Ultrasonic Flow Meter

    Ultrasonic Flow Meter The ultrasonic flow meter is a wonderful piece of test equipment, as long as you use it correctly and maintain it. If can be used to measure the actual flow in piping systems to aid in balancing problems when multiple towers are being treated by on treatment system.

  • Page 41: Personal Protective Equipment

    MUST use the appropriate eye wear. If you have prescription safety eye wear, you MUST use your prescribed eye wear whenever possible. If using any strong chemicals, refer to the MSDS sheet or contact EcoWater CHC for further PPE requirements that must be used. Respirators, face shields, protective clothing and gloves MAY BE REQUIRED AND MUST be used if recommended by the MSDS sheet or by EcoWater.

  • Page 42: Safety Procedures

    Safety Procedures 1. Always use your appropriate PPE. 2. Always Notify the customer when you enter their site, and make sure someone knows where you will be and when you are leaving their site. 3. Always use your brain and follow safety practices. 4.
  • Page 43 (6) Stored or residual energy (such as that in capacitors, springs, elevated machine members, rotating flywheels, hydraulic systems, and air, gas, steam, or water pressure, etc.) must be dissipated or restrained by methods such as grounding, repositioning, blocking, bleeding down, etc. (7) Ensure that the equipment is disconnected from the energy source(s) by first checking that no personnel are exposed, then verify the isolation of the equipment by operating the push button or other normal operating control(s) or by testing to make certain the equipment will not operate.

  • Page 44: Troubleshooting

    This section has been divided into sections that reflect the problems that may be encountered. The possible causes discussed may not specify all possible failures (Contact EcoWater CHC Service personnel to discuss your problem for other possible failures to look for). At the end of this section, specific failure alarms are discussed.

  • Page 45: The Skid's Pump Will Not Power On (Power Led On But No Pump Operation)

    DVM (Digital Volt Meter), verify that power is present on all three legs of the power supply. EcoWater CHC recommends the use of the ONE HAND safety technique. This means only one hand should enter the motor starter box at any one time, the other hand should be placed behind your back during testing.

  • Page 46: The Skid's Pump Will Not Maintain Power When Your Release The On Push Button (Older Cabinet Style Chc Only)

    2. Check to see if the vacuum switch has been rewired, if it has, a blue and brown wire will be wire nutted together in the motor starter. If these wires are not connected with the wire nut, contact EcoWater CHC Service for the upgrade procedure. 5.1.4 The skid’s pump pops breakers, fuses, or thermal overloads frequently- 1.

  • Page 47: Indicator Lights Are Non Functional (Pump Is Operational But The Indicator Is Not Lit)

    3. Look at the power disconnect and the motor contactor, if any smoke residue is left on the plastic, this can signal that one of the contacts may be failing. EcoWater CHC recommends the replacement of the component to ensure appropriate power distribution. If one of the contacts have failed, the pump will make a humming noise and will not spin.

  • Page 48: The Chc Control Station Will Not Power On (Newer Style Skids Only)

    Once the new controller has been installed, reconnect all terminals and test. 4. Contact EcoWater CHC Service if further assistance is needed. 5. If the PLC will not power ON and the pumps will not start and your system incorporates a 24VDC power supply, it is possible that one of the actuated valves is pulling down the 24VDC supply.

  • Page 49: Pressure Issues With The Chc Skid

    Pressure Issues with the CHC skid- The following chart represents the normal CHC pressures. Some pressures may differ from those shown below due to water height in relation to the CHC chamber as well as pump specifications. CHC Pressures- The CHC chamber requires the following pressures: Vacuum –...

  • Page 50: Back Pressure Problems

    If you could not find a blockage or leak, you will need to verify the pump pressures and if correct, the problem is likely associated with the CHC chamber itself. Contact EcoWater CHC Service Department.

  • Page 51: Issues With The Filtration Skid

    Issues with the Filtration skid- Filter Pressures can vary widely depending upon the construction of the installation. However there are several key things you must be aware of. 1. The filter pressure should never exceed the dead head (DH) pressure of the pump. To verify slowly close down the discharge valve on the filter until the pressure reaches it maximum point.

  • Page 52: High Pump Pressures

    5.3.3 High Pump Pressures- Verify that the gauges are operating and return to 0 psi as the pump is stopped. Verify the isolation valves at the unit as well as the towers are open. High pump pressures, if not caused by a defective gauge, are normally caused by an obstruction to flow.
  • Page 53 3. If water is present at the drain during a back wash, then clean the filter element. A stainless steel brush can be used with Rydlyme to clean the Filtomat and ZGF filters. EcoWater CHC also recommends polishing the outside surface of a ZGF element. Once cleaned verify that the filter again back washes effectively.
  • Page 54 i. Phoenix Home Position Switch- The home position switch sends a 12 VDC signal back to the controller as the foot valve reaches its home position. If your filter is not recognizing Home Position, first verify the connections of the cables, then measure the voltage at the controller with your DVM to see if the signal is returning from the switch.
  • Page 55 No back pressure on the drain is allowed. If the customer has installed a blow down meter on the drain, contact EcoWater CHC Service to discuss further requirements. e. If you have an older style Filtomat controller it will have a TECO controller. The Teco controller will indicate that a BACK WASH FAILURE has occurred, you will need to verify the appropriate steps if this message appears.
  • Page 56 Centrifugal Separators- Refer to the appropriate service manual but here are a few thing to look for. There are no moving parts to a Centrifugal Separator, if during operation you hear strange noises from the separator, then the baffle plate has failed and the separator must be replaced.
  • Page 57 Bag Filters- Many of the systems that contain a centrifugal separator also have a bag filter. This bag filter is used to remove the lighter that water particles from the water stream. Some filters are in line with the separator while others remove a portion of the filters flow in a side stream application. In-Line Bag Filters a.
  • Page 58 Cartridge Filters- All CHC filter systems that contain a cartridge filter utilize a side stream flow through the filter. Side Stream Cartridge Filters have one advantage over In-Line filters, no moving parts to trouble shoot. If the cartridge becomes blinded off, then no flow will be pulled through the filter element and away from the filtration system.

  • Page 59: Frequent Pump Seal Failures

    3. If the debris within the water is too great, it can damage the seal more frequently, EcoWater CHC recommends the use of a Hard faced seal in these type debris conditions. 4. Running the CHCsystems without water. If water did not flow to the pumps due to the towers being dry or the customer not opening a valve after cleaning the basket, these actions can cause the pump seal to fail.

  • Page 60: Issues With Actuators And Solenoids

    Issues with Actuators and Solenoids- 5.5.1 Actuator Failure- Most actuator failures are caused by the failure of the actuated valve. As the actuator is removed for servicing, make sure the valve is easily opened and closed. Some valves can become to difficult to move by the actuator and can cause actuator failure. Verify that the fuse or breaker controlling the timer circuit is still functional, If the fuse and/or breaker is still good, the failure could be related to the actuator itself, timer, relay and/or the conductivity controller.

  • Page 61: Non- Functional Solenoid Valves

    5.5.3 Non- Functional Solenoid Valves- A solenoid valve utilizes a control signal to activate a valve. Once the single control signal is present on the coil of the solenoid, the valve should respond. To verify if a solenoid has power you will need to understand that when power is applied most solenoids will hum (noise), vibrate or get hot.

  • Page 62: Issues With Conductivity Controllers

    COCs may decline, however this set point was chosen to ensure that the system does not scale up, so Adjustments to the set point must be cleared with EcoWater CHC Service Personnel. 5.6.3 Dead Band Control- The Dead Band should be adjusted to achieve 10% difference from the Bleed Set Point.

  • Page 63: Walchem

    5.6.4 Walchem- Most of the Walchems used are the WCT300 and WCT400 series controllers. Please refer to the attached service manual for information regarding the screen layout and specifics about the controller. Some of the sites may utilize a WebMaster controller. Please refer to the attached service manual for information regarding the screen layout and specifics about the controller.

  • Page 64: Lmi

    5.6.5 LMI- The only LMI unit used was the DC4000 series controllers. Please refer to the attached service manual for information regarding the screen layout and specifics about the controller. Here is some basic information about the controller that will aid in troubleshooting. ...

  • Page 65: Chc Control Station Messages

    CHC Control Station Messages- 5.7.1 No Filter Backwash (BW Failure shown on Control Panel’s screen)- When the Filter’s Backwash has failed this indication will be shown, there are several possible causes: Screen Plugged- If the filtration screen becomes plugged the outlet pressure of the filter will be below 20 psi after a Backwash.

  • Page 66: Control Panel Message Of "Power Off

    Verify that the strainer baskets are clean, and that no isolation valves are closed. Other problems may be associated with a pump failure or clog in suction piping. Contact EcoWater CHC Service for further assistance. 5.7.5 Control Panel Message of “Power Failure”- This indication is shown when the motor starter has recognized a loss of a Supply Phase, or the motor as caused the failure of the thermal overload.

  • Page 67: Control Panel Message Of "Conductivity Lo

    5.7.7 Control Panel Message of “Conductivity LO”- This indication is shown when the conductivity value is below the lower alarm limits as set in the Set Up screens. This is normally an indication that a problem with the blow down or filter back wash system has occurred.

  • Page 68: Leaks

    Leaks- The majority of the leaks will require the replacement of the defective parts. However, always verify that the hardware does not need to be tightened first to correct the issue. 5.8.1 O-Ring Leaks or Failure- Replace defective O-Ring, and lubricate with appropriate silicone lubricant. 5.8.2 Flange gasket Leaks- Tighten the flanges or replace the gasket.

  • Page 69: Algae And Biofilms

    CHC chamber and removed by filtration. CHC has some experience with an Ultrasonic Algae killing systems as well as Copper Silver Ionizers. If you are interested about this system contact EcoWater CHC Service for further information. 5.9.2 Biofilms- This is not a failure.

  • Page 70: Scale

    5.10 Scale- Scale formation within a system can occur for many reasons. This section outlines the items to do and check to aid in CHC’s determination of possible causes for scale formation . There are three major types of scale that can form within a treated system. They include Hard Scale (like glass), Soft Scale (reformed granular or sandy sludge), Silica Scale.
  • Page 71 50% or is brown in color, EcoWater CHC recommends discarding the standard and opening a new one. Verify the correct units of measure are used from the calibration standard label. The...

  • Page 72: Soft Scale

    5.10.2 Soft Scale Soft Scale formation and or accumulation is an indication of filtration system inadequacies. Two primary types of this scale include reformed granular and sandy sludge. Reformed granular scale becomes compacted and hard as it accumulates, while sandy sludge scale remains mud like as long as it remains wet.

  • Page 73: Silica Scale

    The calibration may have been affected by using an out of date calibration standard, once the standard is used passed 50% or is brown in color, EcoWater CHC recommends discarding the standard and opening a new one. Verify the correct units of measure are used from the calibration standard label.

  • Page 74: Ingestion Scale

    of Silica may increase above the level of sustained solubility. At this level Silica can scale out on the hot surfaces.. 3. Frequent Cycling of Equipment. If the system pump is stopped before the heat has been removed from heat exchanges, compressors, or other hot items, Silica scale can be formed on the hot surfaces.

  • Page 75: Cotton Like Fill Scale

    5.10.7 Cotton like Fill Scale Cotton like Fill Scale is normal and occurs on the leading edge of the fill, it occurs because of the high evaporation rate at this leading edge and the diminished flow that is normally found at this area of the fill as well.
  • Page 76 Soft Scale that is granular but hard from basin Soft Scale from tubes that is very granular...
  • Page 77 Hard Scale from tubes that is hard like Glass...

  • Page 78: References

    6.0 REFERENCES The references attached to this document represent the specific CHC products and the literature prepared by CHC all other reference material including service manuals are included on this CD for your use.

  • Page 79: Corrosion Coupons

    Most systems includes the provision for conducting Corrosion Coupon Testing. To conduct this test you will first need to request coupons from EcoWater CHC. These coupons will be installed for no less than 60 days before they are removed and weighed. The coupons can be installed up to 120 days before removal.
  • Page 80 Isolation Valve Corrosion Coupon Rack Flow Meter Coupon Holder Rod Holder Rod Rod Nut Isolation Valve Holder Rod with Coupon To install the Corrosion Coupons follow these steps: 1. Acquire the coupons, the configuration of coupons will depend upon the type of cooling system you are using.
  • Page 81 11. Adjust the flow meter until the five to eight GPM flow rate is achieved. 12. Return the coupons to EcoWater CHC for examination and analysis. 13. A report will be generated and returned to you with the results.

  • Page 82: Conductivity Controllers (Walchem And Lmi)

    Conductivity Controllers (Walchem and LMI)

  • Page 85: Timed Power On/Off Cycling Of Chc Treatment

    (cost premium), or the use of a Power Cycling Schedule or both. In any way, the customer should feel that EcoWater CHC offers more than just water treatment, it offers the engineering, sales coordination and care about our...

  • Page 86: Separator Purge Timer

    Separator Purge Timer Adjusting the Separator Purge Timer Dial A adjusts the range values of B Dial C adjusts the range values of D If A is adjusted for 6-60 than the range for 1-10min 6-60min 6-60 B will be 6-60 seconds with 1 on B 1-10h 1-10 representing 6 seconds and 10 representing...

  • Page 87: Freeze Protection Options

    Freeze Protection Options Freeze Protection is normally the responsibility of the Customer. EcoWater CHC does recommend the use of Freeze Protection in locations where freezing can occur with power outages. Due to the geographical location or system usage, EcoWater CHC reserves the right to require Freeze Protection and may adjust the Maintenance Agreement pricing to ensure such protection is taken.
  • Page 88 Coupon Rack It requires the use of Heat Tracing and Insulation to protect the piping from the skid to the towers. This option yields the cleanest installation maximizing serviceability, however is the most costly of the options. If you have any questions about Freeze Protection, you can contact EcoWater CHC Technical Services at 800-722-0476.

  • Page 89: Monthly Service Procedure

    Steps to be taken on every visit are shown in Black.  Make sure the customer (end user) understands the Service offering and their responsibilities (PM’s) Define the customers care requirements (PM’s) Define the outlay of information and reports from EcoWater CHC Initiate chain of communication: ...
  • Page 90 Enter the reason for the Service Repair Request d. Record all parts used to make the repair In NOTES enter the cause of the problem and any notes relevant to the issue. Perform a walk-around while visually inspecting the entire skid and plumbing Looking for any issues, such as leaks, broken items, general condition Make sure indicator lights are functioning properly.
  • Page 91 The samples are to be refrigerated and shipped to EcoWater CHC OVERNIGHT for biological testing 52. Dip Slides are to be taken from each sump sample and results recorded and reported to EcoWater CHC after 48 hours All results greater than 10,000 need to be photographed and submitted to EcoWater CHC.

  • Page 92: Cycles Of Concentration

     Verify follow up with regards to notes and customer comments.  Refine schedule as needed.  Your EcoWater CHC Field Technician will be contacting the customer upon receipt of the submitted CSR in Ulysses.  Notify Carl Steffen via email SteffenC@ECOWATER.COM...
  • Page 93 bicarbonate to form CaCO colloids. These colloids are very small and are still suspended in water, but they are not dissolved anymore. They are in a solid state, instead of a dissolved state. All other species, such as chloride, sulfate and potassium will not be affected by CHC treatment. Formed CaCO also contain a small percentage of Mg, but most of Mg will be in water.

  • Page 94: Basic Water Chemistry And Understanding The Water Analysis Results

    Basic Water Chemistry and Understanding the Water Analysis Results The water analysis provided by EcoWater CHC can be difficult to understand. However, by understanding the terms shown in that analysis, you can make sense of your water analysis. Example of Water Analysis provided by EcoWater CHC A standard water analysis includes pH, alkalinity, total hardness, calcium hardness, magnesium hardness, chloride, TDS, conductivity, cycles of concentration and bacteria population.
  • Page 95 Terminology pH: The pH is a measure of acidity or alkalinity of water. pH < 7 is acidic, pH > 7 is alkaline and pH of 7 is neutral. As pH increases, water becomes less corrosive but the scaling tendency of some insoluble salts, such as calcium carbonate and calcium phosphate, increases.
  • Page 96 Magnesium hardness (Mg): Mg, like Ca, is leached from the soil by rainwater. It contributes to the total hardness but is generally present at much lower levels than Ca. Magnesium hardness is a calculated number based on measured total hardness and calcium hardness: Magnesium hardness = Total hardness - Calcium hardness Total hardness: This is the sum of Ca and Mg hardness.
  • Page 97 Waters are commonly classified in terms of the degree of hardness. There are different standards, as listed in the following Table: Table: Water hardness Classification Developed by Water Quality Association Term ppm as CaCO Soft < 17.1 Slightly hard 17.1 – 60 Moderately hard 60 –...
  • Page 98 Chloride (Cl ): Like Sodium (Na), most chloride salts are very soluble in water. They can cause corrosion at high levels. Chloride is used to calculated cycles of concentration because it is stable in cooling water systems. Total Dissolved Solid (TDS): TDS is the total concentration of dissolved components, such as salts and sugar.
  • Page 99 Indicators for concern 1. Cycles of concentration are too high or too low: For each installation, there is a recommended cycles of concentration. This is achieved by properly setting the blow down conductivity point. If cycles are too high, water quality deteriorates and may exceed the treatment capability, causing performance problems.

  • Page 100: Installation Certificate

    Unit Serial #: Serial #: Located Equipment In the City County State Company Name INSTALLATION INFORMATION Subcontractor Information Plumbing/Installation Contractor: Telephone #: Date: Electrical Contractor (if applicable): Telephone #: Date: Operational Information Date System Operational: Customer Signature EcoWater CHC Tech/Rep Signature)

  • Page 101: Water Sampling Instructions

    6.10 Water Sampling Instructions...

  • Page 102: Dip Slide Testing

    8. After 48 hours, compare test strip to the results comparison page supplied with the Dip Strips. 9. Record the test results in Ulysses. 10. EcoWater CHC requires pictures of any Dip Slide that shows a count larger than 10,000 11. Samples that have a count greater than 100,000 will require a more in-depth test.

  • Page 103: Csr Form (Blank)

    In order to chemically passivate a cooling system, an inhibitor (WR-6035) will need to be added and the pH of the system controlled between the range of 6-7. In order to accomplish this, EcoWater CHC uses a Walchem pH/Conductivity controller. Water from the cooling system flows across the probes for conductivity and pH, after which citric acid (first) and WR-6035 (second) are injected.
  • Page 104 (40-100 ppm per the test), you can then start backing the WR-6035 pump speed setting down until it is in a range where the residual dosage is specified (40-100 ppm). You will probably find that you will step the WR-6035 pump down a couple of times until the dosage comes in range. Typically the final setting of the 6035 pump will be around 150.

  • Page 105: Chc Control Station Manual

    6.14 CHC Control Station Manual Control Station Technical Manual Monitor Control Station Version 2A M a in **For Distribution to EcoWater CHC Representatives only** 7/12/14 Rev C...
  • Page 106 Forward This manual has been written for the sole use of the EcoWater CHC Representatives to aid in the understanding, and technical application of the CHC Control Station. This manual is not intended as a supplement to the Operation/Service Manual and should not be released for customer use.
  • Page 107 The Control Station has been designed to monitor and control the CHC treatment system. It utilizes a PLC (Programmable Logic Controller) that has been programmed by EcoWater CHC to meet the operational requirements. Its screen layout has been designed to minimize the need for customer interaction as well as minimize confusion in screen function and layout.
  • Page 108 Optional Features- As shown above many of the monitoring features of the pumps can be turned ON and OFF as required. The station also has the ability to communicate in other ways with building control systems and other communication systems, contact EcoWater CHC for further information about the communication abilities.
  • Page 109 System Screen- Within the system screen, basic controls of system functions can be changed. The functions include: Changing the Date and Time, Adjusting the Screen Contrast, Memory Card Deleting and Formatting, and Program uploads from memory card (used for updating program).
  • Page 110 USER screens as well as SET UP or SYSTEM screens. All SET UP and SYSTEM screens are protected by passwords and EcoWater CHC recommends that the user is only made aware of those passwords that are appropriate to them. That means that if the customer is a Full Service Agreement (FSA) customer they should only be made aware of the pass words for resetting the User Defaults and that NOTHING MORE.
  • Page 112 User Screens in Detail Initial Screen Once Power is applied, this screen appears to indicate the Software Revision number and allow access to the Set Up screens and Alarm Screens. If no actions are taken the unit will revert to the Main screen in 15 seconds.
  • Page 113 Alarms Screen This screen is only available from the Initial Screen. It allows the user to review the date and time of each Alarm occurrence. Alarms are considered as failures as well as power ON and OFF occurrences. This is the Main User Default screen for monitoring. All screens except the Alarm Screen automatically default back to this screen with a time frame.
  • Page 114 Air Calibration Screen This screen allows the user to insert an Air Calibration point (LOW) into the scaling of the Toroidal conductivity probes scaling. Once the sensor is cleaned, the user will leave the probe in open air and as the current conductivity’s reading stabilizes, the F1 key will be pressed to insert the Low (0) calibration point HI Calibration Screen This screen allows the user to insert a High Calibration point...
  • Page 115 Help Screen If the HELP soft key is pressed on the Main screen the HELP Screen will be shown. The phone number shown on this screen can be installed in the Set Up screens.
  • Page 116 LCD, as well as the Removable Media Setting, that allows you to format, save, or Update the systems software with the use of the Micro SD card. Contact EcoWater CHC Service for more information if needed about the System Alphanumeric Input Screen This screen automatically appears if you select any of the boxes on the screens that require an input.
  • Page 117 Updating The Software The Control Station’s Software can by updated at the factory or at the customer site. This section refers to the procedure needed to update the software in the field (customer site). IT IS VERY IMPORTANT TO FOLLOW THIS PROCEDURE EXACTLY AS SHOWN BELOW. 1.
  • Page 118 16. If any problems occur or the system does not start operating with the Initiation screen, call EcoWater CHC Service for help. The software was designed to check its own Check Sum upon power on and if the Check Sum of the running program does not match the stored program, the unit will indicate this failure with a “CRC Error”.
  • Page 119 Control Station Connections The Control Station has been designed to allow the interface to serve many versions of CHC, Filtration, alert, function and communication options. Most of the options are build directly into the system and only require connection to the hardware and Setting Screen Configuration to implement their use. However the optional communication formats require software modification and are not discussed in this section.

  • Page 122: Electrical Schematics

    6.15 Electrical Schematics...
  • Page 129 CHC Chamber Parts and Information Old Endbell Elbow Grommet Vac Tube 1/4 tube x 1/4 MPT Lg Groove Lock Vac Tube Brass Nut Clamp w/seal O-rings 1/4 tube Nozzle New Endbell Endcap Hex Bushing 3/8 x 3/8 Elbow Center Weldment 3/8 Coupling 3/8 x 1/4 Elbow Hex Head...
  • Page 130 Other Reference Materials in file CHC equipment views with callouts, old and new CHC operation manual (example) Corrosion Coupon Analysis Walchem Conductivity meter (s) operation manuals ZGF Manuals (all) Filtomat Manuals (all) Turbo Disk (looking for) Forsta Manual Spears Manual MSDS sheets for Rydlyme, D5, and Micronice Spray nozzle worksheet Power schematics...

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