Ecosoft MO 6-36M, MO-1, MO-12, MO-2, MO-3, MO-4, MO-9 Instruction Manual

PDF Download

Document

INSTRUCTION MANUAL

Ecosoft MO MIDI systems

MO-1 MO-2 MO-3 MO-4 MO-6 MO-9

C O N T E N T S :

:

Annex B. Operation record

This appliance is not intended for use by persons

(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.

A C R O N Y M S A N D A B B R E V I I A T I I O N S

CIP Clean-in-place

FF Forward flush

NC Normally closed RO Reverse osmosis

NO Normally open TDS Total dissolved solids

GPM Gallon per minute P&ID Piping and instrumentation diagram

LPM Liter per minute PCB Printed circuit board

R O S Y S T E M

1 Overview

Ecosoft industrial reverse osmosis systems are used for demineralizing water in industrial, municipal, commercial applications.

Ecosoft RO system can be used to demineralize low to medium salinity feed water. All parts of the system that are in contact with water have the necessary certifications for use in food/drinking water applications.

Reverse osmosis system operates as follows. First, raw water is fed through sediment prefilters to remove particles. The water may be dosed with antiscalant or other RO chemicals with a dosing pump at this point. Then, high pressure pump feeds the water into the membrane module or membrane array, in which feed stream undergoes separation process and splits into purified and concentrated streams. Part of the concentrated stream is discharged to drain, and the rest is fed back to suction end of the high pressure pump, referred to as concentrate recycle. Drain line is fitted with drain flow control that limits rate of concentrate discharge and determines the ratio of purified water (permeate) to waste water

(concentrate). The ratio is called recovery. Recycle line is fitted with recycle flow control that limits recycle flow rate and creates working pressure in the membrane array. Rate of permeate production is proportional to the pressure in the membrane modules.

Commissioning and configuring the RO system includes carefully adjusting the flow controls to the right settings.

Improperly commissioned RO system may fail in the matter of minutes, including irreparable membrane failure, hardware failure, and also involves electrical and pressure hazard. Drain flow rate and recycle flow rates should only be configured by authorized staff.

Permeate stream comes out via permeate outlet and runs to permeate tank. Purification process will stop whenever the tank is full of water (signaled by the float switch) or when any backpressure in permeate line appears, indicating critical condition. The process will automatically resume when the full tank signal deactivates.

The system is operated with a process controller, which powers pump(s) and valves so as to carry out service or membrane rinse in the necessary times. The controller reads signals from pressure switches, float switch, permeate conductivity and temperature, and external inhibition. Depending on these signals, it chooses to run in service, rinse membranes, go to standby, or go to fault mode. Permeate conductivity and temperature data are displayed to the operator. Depending on system model, it can be additionally equipped with:

– antiscalant/chemical dosing pumps

– additional electric valve for raw water mixing or membrane permeate rinsing (see Annex A)

R O S Y S T E M

2 Technical data

Tap feed water must be pre-filtered from fine particulates and residual chlorine before entering the RO system. Well water may contain impurities such as hardness, iron, manganese, silica, hydrogen sulfide that can quickly lead to membrane failure. Some of these challenges can be addressed by using injection of antiscalant. Perform a detailed laboratory analysis of your well water and consult a water treatment specialist to see if you need additional equipment for treating your well water.

LIMITATIONS

Hardness

Iron

Manganese

Silicate

Total dissolved solids

150 mg/L CaCO

8,5

°dH

0,1 mg/L

0,05 mg/L

20 mg/L

3000 mg/L

Chemical oxygen demand 4,0 mg/L O

Residual chlorine 0,1 mg/L

Hydrogen sulfide none

the limitations may be exceeded if using antiscalant, oxygen scavenger, or other RO chemical pretreatment

Inlet pressure

0,2…0,4 MPa

Temperature of water

10…25 °C

Electrical power

Membrane pressure

400 V, 50 Hz 3-phase

0,8…1,2 MPa

R O

S Y S T E M

3 Installation and startup

Caution! Electrical installation should only be done by a qualified electrician.

3.1

Rest the unit on a flat level surface capable of supporting its weight (see table of Specifications). Install permeate tank next to the unit. Inspect the RO system carefully for damage, including piping, valves and instruments, pump, pressure vessels, pre-filter housings, power cabinet before proceeding with connection and startup.

3.2

Install membrane in each pressure vessel as follows.

Remove PVC piping with the pressure vessel ports. To remove

PVC pipes, take apart pipe unions at the pressure vessel ports. If necessary, also loosen next closest downstream union to remove the entire piping fragment leading to the vessel.

Remove the lid at the feed end of pressure vessel. First, remove spiral retaining ring by pulling bent tab towards the center of circle. If the pressure vessel lid is retained by half rims, remove the fastening screws and pull half rims out of circular groove.

Take out the lid with membrane adapter.

Observe direction of arrow on pressure vessel when installing membrane. Use glycerol or a similar ROcompatible lubricant as needed. Avoid touching membrane with hands. Use sterile rubber gloves when handling membrane.

Make a cut in membrane packaging bag and insert membrane in the pressure vessel brine seal last. Central tube of the membrane has to mate with membrane adapter installed at the concentrate end of pressure vessel. If necessary, remove the lid at the concentrate end before installing the membrane.

If installing multiple membranes in one vessel, proceed with the next membrane in a similar fashion, after installing membrane connector in central tube of first membrane’s rear end. Couple the second membrane with the connector, then push it forward all the way in the pressure vessel.

After the membrane(s) are installed in the pressure vessel, install the lid back in place. Put spiral retaining ring (or half rims) in the groove, fasten half rims with screws. Re-assemble the RO system in reverse order.

3.3

Connect raw water pipe from water main/pump to the entry solenoid of the RO system. Recommended pipe size is at least that of the connection port, plastic/composite pipe or rigid nonkinking hose. Use appropriate fittings as necessary. Connect

drain tube or hose with drain outlet of the RO system and run it to drain pipe. Ensure air gap at the end of drain line to prevent backsiphonage. Connect tube or hose to permeate outlet and extend it to permeate tank. Cut or bore an aperture at the top of tank wall, install pipe gland and pull the permeate tube through the gland (note: run permeate line to drain when carrying out initial membrane rinse).

It is strongly recommended to use short runs of pipe or hose the size of which matches or exceeds that of the connection port.

3.4

Put the float switch inside permeate tank after moving ballast the necessary length up the cord to provide enough level difference between activated and deactivated position. After the first filling of the tank, verify that the float switch activates and deactivates in the right positions.

3.5

If the RO system has permeate rinse enabled, install the necessary piping. If using service interruption by external signal

(microswitch), remove conductor connecting terminals 6 and 7 together on controller PCB. Then, run wire from microswitch inside the controller housing and connect to the terminals. If using antiscalant or other RO chemicals, refer to dosing pump’s instruction booklet for information concerning the dosing pump.

3.6

Run power to the RO system. Pull power cable inside power cabinet of the RO system through a gland in cabinet wall.

Connect three phases and neutral to leftmost screw terminal block in the bottom row. Switch on main circuit breaker in the top row. Check protection relay status. Any LED signal except green light on indicates some power supply fault. Green LED indicates proper power supply. See pictures of the electrical panel.

Main circuit breaker

Controller circuit breaker

Protection relay

Top DIN rail in the power cabinet

3-phase power connection

Bottom DIN rail in the power cabinet

Pump contactor

3.7

Start up the system as follows :

3.7.1

Ensure recycle and drain flow regulating valves are fully open before starting. Run the permeate tube to drain for the duration of the first run of the RO system.

3.7.2

Switch on controller circuit breaker to start the RO system.

After the controller starts up and the unit starts to operate, tighten drain regulating valve until drain rotameter reading meets specification (see table of Specifications). Then, start turning down recycle regulating valve. This will raise pressure in the membrane module shown on pressure gauge. Stop when recycle flow rate meets specification or pressure in the membrane module reaches above upper limit (see table of

Specifications).

3.7.3

Calculate target drain flow using below formula. Use 75% recovery (unless specified otherwise) and permeate flow rate as shown on permeate rotameter:

Drain flow rate



Permeate flow rate



Permeate flow rate

Recovery

For example:

Permeate flow rate = 50 l/min (= 3 m

/h)

Recovery = 75% = 0,75 (default)

Target drain flow rate

 50

0 , 75





16 , 67 l/min

Make final adjustment of drain flow rate to your calculated target value. After you have finished setting up, verify that operating flow rates, rotameter and pressure gauge readings stay within specification as per table of Specifications.

Take care not to exceed 1,4 MPa in membrane module at any time. If membrane pressure rises above the upper limit in specification, open recycle flow regulating valve to bring it down.

Drain flow rate must not go below the calculated target value at any time. If at some point drain flow rate lowers, loosen drain flow regulating valve to raise it back.

Turn regulating valve knobs smoothly when regulating recycle and drain flow. Do not make rapid turns or apply disproportionate force as this can damage the unit.

3.7.4 Let the unit run for 1 hour discarding permeate and concentrate to drain to flush out membrane preservative.

Watch pressure and flow rate readings to make sure these do not exceed requirements.

After 1 hour of operation, start forward flush cycle (by pressing

�

START on controller front panel), then stop the unit. Switch off main circuit breaker. Connect permeate tube/hose to permeate tank. The RO system is ready for operation.

�

Installation and setup of the unit should be undertaken by a qualified professional. Room or area where the unit is to be installed must meet workplace standards of local building code.

�

The unit must not be operated in outdoor environments. Do not expose to weather conditions (rain, temperature fluctuations, proximity of heating equipment, direct sunlight etc).

�

Air at workplace should be free of corrosive vapors, airborne dust, and fibrous matter.

�

To provide access to the unit for maintenance and repair purposes, respect the following clearances between the unit and building structures: 500 mm to the left or right, 200 mm above.

R O

S ST M

4 Installation requirements



Electrical connections must comply with local electrical code.

Make sure to follow applicable grounding and insulation rules.



Supply, drain, and delivery pipework must comply with local plumbing code and have sufficient flow capacity. Drain line of the unit must be separated from floor drain with an air gap.



Construction material or inside lining of permeate tank must be resistant to water corrosion (e. g. stainless steel, polypropylene).

Tank should be installed next to the unit.



Antiscalant pump suction line length should not exceed 1,5 m.

Refer to dosing pump’s manual to adjust pump’s settings if it has not been factory configured.

R O S Y S T E M

5 Operating requirements

5.1

Operator of the unit must strictly follow these guidelines and general electrical safety precautions.

If power supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified person in order to avoid hazard.

5.2

When operating the unit, ensure that pressure and flow rates are within specification limits and that power supply is clean and uninterrupted.

5.3

Perform the following at least once a month:

– verify that readings on pressure gauges and rotameters fall within the specified range per requirements specification;

– verify tightness of hydraulic connections and integrity of parts.

5.4

In order to monitor performance of the RO machine, regularly keep record of operation and write down parameter readings. Use membrane manufacturer’s software tools for normalization to control for fluctuations of pressure, temperature, and other operating conditions.

5.5

Change polypropylene cartridge when it has clogged. Pressure drop of 0,1 MPa or greater on the sediment filter indicates that filter cartridge needs to be replaced as soon as possible.

5.6

Perform CIP or another suitable chemical cleaning protocol when any of the following conditions are encountered:

– normalized permeate flow rate drops 10-15% of its initial value;

– normalized conductivity of permeate increases 10-15% of initial value, raw water conductivity remaining at the same level;

– normalized pressure drop along the membrane module increases 10-15% of its initial value.

5.7

After installing freshly cleaned membrane, perform 1 hour rinse discarding all permeate and concentrate. If chemical cleaning fails to restore normalized flow or rejection to design specifications, membrane element is irreparably fouled and has to be replaced.

5.8

To prevent microbial contamination, the unit should be operated for at least 1 hour a day. In case 48 hours or longer shutdown is to occur, membrane should be treated with preservative solution. Preservative treatment is accomplished by circulating 1% sodium metabisulfite solution through the membrane module for

30 minutes or by preparing metabisulfite solution of the above strength in the module. Before resuming operation of a machine that had been treated with preservative, rinse the membrane.

Do not use raw water with over 0,1 mg/L of free chlorine without pre-treatment with activated carbon or other means of dechlorination. Chlorine will destroy the membrane.

5.9

To replace sediment filter cartridge proceed as follows:

– remove the power from the unit;

– shut off water supply and relieve pressure;

– screw off filter bowl and remove it, taking care not to spill water on parts of the unit;

– remove spent cartridge from the bowl, place a clean one inside and screw the bowl back on.

Do not torque over 2 kgf×m when tightening bowl.

5.10

To replace membrane element proceed as follows:

– remove the power from the unit;

– shut off water supply and relieve pressure;

– disconnect feed, permeate, and concentrate tube connections at membrane module outlets;

– remove caps from the pressure vessel;

– push the membrane element from the feed end towards the discharge end (in the direction of the arrow). Extract the membrane element by pulling it at the discharge end of the vessel;

– install new membrane element, observing flow direction as indicated by the arrow;

– fasten the caps and re-connect tubes back to the vessel.

Do not perform any maintenance, repair, cleaning, moving the unit or ancillary units (permeate tank, media filters etc), when the unit is connected to power and water supply.

Do not subject pressure vessel to mechanical impact

(shocks, static load etc).

The manufacturer shall not be held liable for any damages incurred by the owner of the unit or any third party due to failure to adhere to the safety precautions or installation guidelines herein.

R O S Y S T E M

6 Shipping and storage requirements



The unit must be stored indoors. Ambient air quality must meet workplace standards.



Carry out preservative treatment of membrane elements when preparing for an extended downtime.



The RO machine in its original packaging can be shipped by all types of air, sea or ground transport.



During transportation, the unit must be protected from exposure to low temperatures and jolts/vibration.

R O S Y S T E M

7 Troubleshooting

Problem Possible cause

Protection relay is not shining green light

The controller does not start after switching on controller circuit breaker

Main circuit breaker trips

High pressure pump is not starting after the controller has started up

Low feed pressure fault

No power

Power supply fault

Protection relay is tripped

Corrective action

Check that there is power supplied to the system, power cable is properly connected and not damaged

Refer to protection relay manual or contact Ecosoft product support

Ensure clean 380-400 V, 50 Hz electrical power supply to the system

Loosened contact in screw terminal

Open controller housing, check that power supply conductors are firmly fixed in 220V

Other

Power supply does not meet system requirements

Other terminals of the PCB

Contact your dealer’s product support

The system requires clean power supply conforming to electrical specification in chapter 2. Check for brownout, overvoltage, power surges

Contact your dealer’s product support

Controller is in Standby mode

Check if permeate tank is full

Check that permeate tube is not blocked or shut off with a valve

Controller is in Stop mode

Open controller housing and check that terminals 6 and 7 are short-circuited with a conductor

Controller is in Service

Contact your dealer’s product support

Insufficient pressure of water supply

Ensure adequate supply of water per requirements in

Chapter 2

High permeate conductivity

Low permeate flow rate

Other

The system is connected to water supply using flexible hose or small size pipe

Clogged pre-filter cartridge

Other

Water temperature is higher than allowed

System is not operating with proper concentrate pressure and flow rate

Water quality does not meet requirements

Damaged brine seal or membrane adapter Oring

Fouled or damaged membranes

Other

Set up proper connection to water supply pipe. Avoid long runs of small size pipe

Check the filter cartridge and replace if necessary

Contact your dealer’s product support

Test temperature of feed water and check that it conforms with requirements in chapter 2

Write down readings on pressure gauges and rotameters and contact your dealer’s product support

Check that the water analysis conforms with requirements in chapter 2

Contact your dealer’s product support

Water temperature is lower than allowed

System is not operating with proper concentrate pressure and flow rate

Fouled membranes

Replace or chemical clean the membrane

Contact your dealer’s product support

Test temperature of feed water and check that it conforms with requirements in chapter 2

Write down readings on pressure gauges and rotameters and contact your dealer’s product support

Carry out chemical cleaning, contact your dealer’s product support if membranes get fouled too often

Contact your dealer’s product support

C O N T R O L L E R

1 Overview

Ecosoft OC5000 process controller provides means to control operation of RO machine via succinct user interface comprising two buttons and LED display. The controller is designed to ensure complete automation of the process while allowing for manual intervention on user part at any moment in time. When running a reverse osmosis machine, the controller executes the following tasks:

 turning the unit on and off with respect to tank permeate level and/or backpressure switch status;

 reading status of level, pressure, and stop switches; conductivity and temperature of permeate;

 going into Fault mode upon occurrence of any of the conditions indicating risk of damage to the RO machine or improper operation;

 performing hydraulic flushing of membranes (‘forward flush’) with preset frequency and duration;

 implementing manual control over the unit.

In order to deliver the above functionality, Ecosoft process controller supports the following connectivity:

–

5 dry contact switches (NC/NO);

–

3 electrical valves (solenoid or motor driven valves can be used);

– alarm signal;

– high pressure pump, antiscalant and/or biocide dosing pumps;

– temperature and electrical conductivity probes.

The controller supports scheduled maintenance alerts and passcode protected access to configuration menu. Conductivity reading is digitally corrected for temperature of permeate, while hardware interface offers good interference immunity and reliability with galvanically isolated terminal connections.

C O N T R O L L E R

2 Technical data

Electrical cabinet components

Reference Product code

A0 OC5000EN

KF1

TR1

SB1

R1 … R4

HL1

SM1P1400

C4P1

PMV50A575

TDTR015

8LM2TB6344

RM845230

AD220VACR

HL2

KM1

…X2

AD24VADCR

RM845024AC

BF2510A220

WK6

WK25UVO

Product

Ecosoft ОС 5000 RO controller

Motor protect circuit breaker

C4 1 pole mini circuit breaker

Voltage control relay

15 W 230/24 VAC voltage transformer

Push button switch

Relay, 230 VAC coil

230 VAC red light

24 VAC/VDC red light

Relay, 24 VAC coil

3 pole

, 25А

contactor

WK 6 screw terminal

WK 2,5 screw terminal

External connections

Terminals

X0/1

—

X0/3

X0/N

X0/GND

X1/1 — X1/2

X1/3

—

X1/5

X1/6 — X1/8

X1/9

—

X1/11

X2/1 — X2/2

X2/3

—

X2/4

X2/5 — X2/6

X2/7

—

X2/8

X2/9 — X2/10

X2/11

—

X2/12

Voltage

400 VAC

230 VAC

5 V

24 VAC

Leads

3 x 230 VAC, 3-phase system power supply

Neutral conductor, system power supply

Protective earth

Antiscalant dosing pump

Entry valve

Forward flush valve

Bypass valve

External stop signal

Low feed pressure switch

High operating pressure switch

Permeate backpressure switch

Permeate float switch

Antiscalant level switch

C O N T R O L L E R

3 Operating modes

When operating, the controller will be in any one of the following modes: Service, Stop, Forward Flush 1, Forward Flush 2, Standby,

Fault. Immediately after starting, the controller will display firmware version and then proceed to Service if tank permeate level is low and backpressure switch is not activated.

Configuring and manipulating the controller is done using



START and



STOP buttons. Current mode of operation and pertaining information is shown on the LED display. Opening the circuit in the Stop domain of terminal block (see figure 1) will bring the controller to Stop mode regardless of its current mode of operation. Closing the circuit will take the controller back to the mode that had been interrupted. Stop terminals can be used to connect a microswitch on pre-treatment media filter, a relay or other means of external control to the controller.

Following is the description of controller modes.

SERVICE

In Service mode, the RO machine produces permeate. If no fault conditions are taking place, float switch is low and backpressure switch is not activated, the controller will operate in Service mode.

Status of outputs in Service

High pressure and antiscalant pumps

Entry valve on

Forward flush valve

Bypass valve

Alarm open closed open (if configuration step 1.3 is set to 0) closed (if config. step 1.3 is non-zero value) off

Display will flash cumulative runtime of the RO machine, remaining time before scheduled maintenance alert (if set in configuration step 3.1), temperature and conductivity of permeate

(OC5000 only). Pushing



START once will initiate Forward Flush 1, pushing



START twice in 0.5 seconds or less will initiate

Forward Flush 2, pushing  STOP will bring on Stop mode. If high feed pressure, low feed pressure, or high permeate conductivity condition occurs, the controller will go into Fault mode.

FORWARD FLUSH 1

During Forward Flush 1, membranes are rinsed with high flow of raw water allowing both permeate and concentrate run freely to drain. Forward Flush 1 occurs during normal operation with frequency set in configuration steps 1.5, 1.6. It is also activated in

Service mode if the controller is going to transition to Standby after reading high tank level or pressure. It can be manually activated while in Service by pushing



START button.

Status of outputs in FF1 on High pressure and antiscalant pumps

Entry valve

Forward flush valve

Bypass valve open open closed

Alarm off

Pushing  STOP will abort Forward Flush 1 and bring the controller to Stop mode. Pushing



START will cycle the controller to

Forward Flush 2 mode. If high feed pressure or low feed pressure occurs, the controller will go into Fault mode. Low feed pressure fault during Forward Flush 1 can be disabled in configuration step

1.7.

FORWARD FLUSH 2

Forward Flush 2 consists in rinsing membranes with permeate supplied from permeate tank by permeate pump.

Forward flush 2 with permeate is only possible if the RO system is equipped with rinsing electric valve.

Forward Flush 2 occurs after each Forward Flush 1 if configuration step 1.3 is set to non-zero value. It can be manually brought on by pushing



START during Forward Flush 1 or double pushing



START during Service.

Status of outputs in FF2

High pressure and antiscalant pumps

Entry valve

Forward flush valve on (if configuration step 1.4 is set to

‘on’) off (if configuration step 1.4 is set to

‘off’) open open

Bypass valve open

Alarm off

Pushing  STOP will abort Forward Flush 2 and bring the controller to Stop mode. Pushing



START will abort Forward Flush 2 and bring the controller to Service or Standby (depending on tank level and backpressure status).

STANDBY

In Standby, the unit is stalled and ready to resume service.

Standby mode is brought on by reading high tank level or tripping permeate backpressure switch.

Status of outputs in Standby

High pressure and antiscalant pumps off

Entry valve

Forward flush valve

Bypass valve closed closed closed

Alarm off

Pushing



STOP will bring the controller to Stop mode. Pushing



START will take the controller into Service if permeate is low and backpressure switch is inactive. Otherwise, pushing



START will initiate Forward Flush 1 and Forward Flush 2 (if set) and then bring

the controller back to Standby. When float switch or permeate backpressure switch deactivate, the controller will go back to Service.

FAULT

In Fault mode, the unit is stalled to protect the equipment from dangerous operating conditions. Fault mode is brought on by activating low feed pressure switch (to prevent ‘dry running’), hig h feed pressure switch (to protect against overpressure), or reading an excessively high permeate conductivity value (which could mean membrane rupture or other malfunction).

Status of outputs in Fault

High pressure and antiscalant pumps off

Entry valve

Forward flush valve

Bypass valve closed closed closed

Alarm on

Fault mode can only be quit manually by pushing



START. Ensure the cause of fault is eliminated before quitting Fault mode. Pushing

 STOP will bring the controller to Stop mode.

STOP

In Stop mode, the unit is stalled and awaiting further input. Stop mode can be manually brought on by pushing



STOP in any mode, or by stop switch opening circuit between STOP terminals on the printed circuit board.

Status of outputs in Stop off High pressure and antiscalant pumps

Entry valve

Forward flush valve

Bypass valve closed closed closed

Alarm off

Upon pushing



START or deactivating stop switch, the controller will resume from where it was interrupted.

C O N T R O L L E R

4 Program

Configuration settings are stored in non-volatile memory. Access to each submenu is protected with passcode. To enter configuration menu, hold



STOP for 8 seconds. In the menu, editing and storing values is helped by flashing cursor.



START button moves cursor one position to the right,



STOP button increments selected digit by one, cycles between options, or scrolls to the next screen when the cursor is at the '>' symbol.

Configuration menu layout is shown below.

MENU Factory Setting

1. SETTINGS

Settings and calibration passcode prompt 0000

1. High pressure pump delay, s

2. Forward Flush 1 duration, s

3. Forward Flush 2 duration, s

4. High pressure pump power during Forward Flush 2, on/off

5. Frequency of periodic Forward Flush in Service, h

6. Frequency of periodic Forward Flush in Standby, h

7. Read low feed pressure during Forward Flush, on/off

8. Low feed pressure switch, NO/NC

9. Low feed pressure Fault delay, s

10. High feed pressure switch, NO/NC

11. Permeate backpressure switch, NO/NC

12. Backpressure Standby delay, s

13. Tank level switch, NO/NC

14. Tank level Standby delay, s

15.

0…1000 μS/cm conductivity range, on/off

16.

0…50 μS/cm conductivity range, on/off

17.

Permeate conductivity Fault threshold, μS/cm

18. Permeate conductivity Fault delay, s

19. Temperature probe, on/off

Set permeate temperature, °C (if 1.19 is set to ‘off’)

Display real temperature, on/off (if 1.19 is set to ‘on’)

1.21

New settings and calibration passcode

1 sec on off

0 uS/cm on on

10 sec

60 sec

0 sec off

4 hour

24 hour on

3 sec

N C

1 sec

2. CALIBRATION

Settings and calibration passcode prompt

2.1

First point value,

μS/cm

2.2

Second point value, μS/cm

3. MAINTENANCE

Maintenance passcode prompt

3.1

Schedule maintenance stop, on/off

3.2

Scheduled stop period, h (if 3.1 is set to ‘on’)

3.3

New maintenance passcode off

500 hour

1. SETTINGS

Hold  STOP for 8 seconds to launch menu prompt. Push



START to enter Settings submenu. Enter passcode in the prompt.

Factory passcode is ‘0000’.

1.1

High pressure pump delay

Enter length of interval between opening the entry valve and starting the pump when the unit is going into Service (0…255 seconds)

1.2

Forward Flush 1 duration

Enter length of Forward Flush 1 (0…255 seconds). Forward Flush 1 will not be performed if the parameter is set to zero.

1.3

Forward Flush 2 duration

Enter length of Forward Flush 2 (0…255 seconds). Forward Flush 2 will not be performed if the parameter is set to zero. Default setting is zero (Forward Flush 2 disabled).

1.4

High pressure pump power during Forward Flush 2

This setting specifies whether the high pressure pump will be powered during Forward Flush 2 (on/off).

1.5

Frequency of periodic Forward Flush in Service

This setting determines how often Service mode is interrupted to run forward flush sequence (once in 0…255 hours).

1.6

Frequency of periodic Forward Flush in Standby

This setting determines how often Standby mode is interrupted to run for ward flush sequence (once in 0…255 hours).

1.7

Read low feed pressure during Forward Flush

This setting specifies if low feed pressure switch status will be read by the controller during forward flush. If set to ‘off’, low feed pressure situation will not bring about Fault mode.

1.8

Low feed pressure switch

This setting specifies whether low feed pressure switch is normally closed (NC) or normally open (NO) type.

1.9

Low feed pressure Fault delay

Specify the length of time before the controller goes into Fault mode if low feed pressure condition occurs (0…255 seconds). The pump will continue to run for this many seconds before Fault mode is switched to.

1.10

High feed pressure switch

This setting specifies if high feed pressure switch is normally closed (NC) or normally open (NO) type.

1.11

Permeate backpressure switch

This setting specifies whether backpressure switch is normally closed (NC) or normally open (NO) type.

1.12

Backpressure Standby delay

Specify the length of time before the controller goes into Standby if high permeate p ressure condition occurs (0…255 seconds).

Controller will continue to operate in Service mode for the set length of time before running pre-Standby forward flush.

1.13

Tank level switch

This setting specifies whether float switch is normally closed (NC) or normally open (NO) type.

1.14

Tank level Standby delay

Specify the length of time before the controller goes into Standby if tank level switch goes high (0…255 seconds). Controller will continue to operate in Service mode for the set length of time before running pre-Standby forward flush.

1.15

0…1000 μS/cm conductivity range

Specify if the controller will read electrical conductivity of permeate in the range of 0…1000 μS/cm (on/off). This setting will

reset to ‘off’ if 1.16 is set to ‘on’.

1.16

0…50 μS/cm conductivity range

Specify if the controller will read electrical conductivity of permeate in the range of 0…50 μS/cm (on/off). This setting will reset to ‘off’ if 1.15 is set to ‘on’.

1.17

Permeate conductivity Fault threshold

Specify maximum acceptable permeate conductivity. Conductivity reading above this value will initiate Fault mode (‘High permeate

TDS’). If set to zero, fault threshold will not be used.

1.18

Permeate conductivity Fault delay

Specify the length of time before the controller goes into Fault mode when high permeate conductivity is being read.

1.19

Temperature probe

Select whether temperature probe is used (on/off).

1.20

Set permeate temperature

Specify temperature of permeate for correct conductivity measurement. Only active if 1.19 is ‘off’.

1.20

Divide temperature by 10

Temperature value ÷10

will be shown

. Only active if 1.19 is set to ‘on’

1.21

New settings and calibration passcode

Verify passcode.

2. CALIBRATION

Hold  STOP for 8 seconds to launch menu prompt. Push  STOP to skip Settings submenu and push



START to enter Calibration submenu. Enter passcode in the prompt. Factory passcode is ‘0000’.

2.1

First point value

First calibration point can be done at zero electrical conductivity (dry conductivity meter). In order to use zero first point conductivity, remove the conductivity meter from its cell, wipe with clean cloth and keep dry for a few minutes. When conductivity reading on the display stabilizes, put zeroes in the bottom row, and go to the next step.

If using a weakly conducting solution to set the first point, rinse the meter with deionized water and wipe dry. Dip clean conductivity meter

into sample of known standard conductivity, wait until the reading on display stabilizes and input actual conductivity. Then go to the next step.

2.2

Second point value

Use water sample with greater conductivity than that of the first point standard. Follow the same procedure rinsing and wiping residual moisture on conductivity meter electrodes. Dip clean conductivity meter into sample of known standard conductivity, wait until the reading on display stabilizes and input actual conductivity. Then go to the next step.

The controller will display ‘OK’ and show Maintenance submenu prompt

3. MAINTENANCE

Maintenance submenu will be shown after completing calibration of conductivity meter and can be called up during Service by holding

 STOP for 8 seconds, then skipping Settings and Calibration prompt displays. Enter Maintenance passcode in the prompt. Factory passcode is ‘0000’.

3.1

Schedule maintenance stop

Select ‘on’ to turn on maintenance reminder after pre set number of hours of cumulative runtime. Controller will put the RO machine to a halt and display maintenance alert message. Operation can only be continued after entering Maintenance submenu (with proper

Maintenance passcode) and resetting scheduled stop period. If set to

‘off’, the controller will continue to count overdue hours after reaching zero hour count.

3.2

Scheduled stop period

Enter the number of hours before the RO machine will be brought to a scheduled stop for maintenance. This setting will not be shown if the scheduled stop is turned off in step 3.1.

3.3

New Maintenance passcode

Enter new passcode for Maintenance submenu and confirm. This will exit the Configuration menu.

A N N E X A

Bypass valve enabled system P&IDs

Raw water

E PI

Legend

entry valve

forward flush valve bypass valve 3.

dosing pump

High Pressure pump

purified water pump

sediment prefilter

membrane module

permeate tank

10.

drain flow control

11.

recycle flow control

12.

HP pump bypass valve

Purified water

Reverse osmosis system with raw water blending

Drain

E PI PS

FI Raw water

PI PI

Legend

entry valve

forward flush valve

permeate rinse valve

dosing pump

High Pressure pump

purified water pump

sediment prefilter

membrane module

permeate tank

10.

drain flow control

11.

recycle flow control

12.

HP pump bypass valve

Purified water

Reverse osmosis system with permeate rinsing

Drain

A N N E X B

Operation record

Ecosoft RO

Pressure

. Operation record.

Flow

Serial number

Factory Acceptance Test Protocol

Ecosoft

____________ reverse osmosis system

Parameter value Type of test

1. Hydraulic connections tightness

1.1 Water pressure at main

1.2 Test duration

1.3 No leaks detected

2. Valves and instruments performance

2.1 Controller programming

2.2 Low feed pressure switch

2.2.1 Trip point

2.2.2 Delay

2.3 High feed pressure switch

2.3.1 Trip point

2.3.2 Delay

2.4 High permeate pressure switch

2.4.1 Trip point

2.4.2 Delay

2.5 Entry solenoid valve

2.6 Forward flush solenoid valve

3. Float switch

4. Chemical dosing pump

MPa h

MPa s

□

Pass Signature □

□

Team:

Remarks

Date Signature

Hello! I am an AI chatbot specifically trained to assist you with the Ecosoft MO 6-36M MO-1, MO-12, MO-2, MO-3, MO-4, MO-9 Instruction Manual. I have thoroughly reviewed the document and can help you locate the exact information you need or explain the content in clear and simple terms. Whether you’re looking for guidance on specific features, troubleshooting steps, or general usage, feel free to ask your questions. The more details you provide about your concerns or needs, the more accurately and effectively I can assist you!

Assistant typing

Assistant terminated