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Alfa Laval reserve the right to make changes at any time without prior notice.

Any comments regarding possible errors and omissions or suggestions for improvement of this publication would be gratefully appreciated.

Copies of this publication can be ordered from your local Alfa Laval company.

3XEOLVKHG E\ Alfa Laval Desalt A/S

Maskinvej 5

DK-2860 Søborg

(Copenhagen) Denmark

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This document and it content must not be copied, reproduced, transmitted or disclosed to any third party without consent of Alfa Laval Desalt.

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1.0.0 Safety Instructions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5

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1.0.0 Main Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 7 1.1.0 Working Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9 1.2.0 Freshwater Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 9 1.3.0 Automatic Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10 1.3.1 Steam Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 10 1.3.2 Desuperheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11 1.3.3 Solenoid Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11

1.3.4 Set Point for Operating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 11 1.3.5 Set Point for Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 12

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1.0.0 Starting and Stopping Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13 1.1.0 Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 13

1.1.1 Evaporation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14

1.1.2 Condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 14 1.2.0 Adjustment of Sea Cooling Water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

1.3.0 Stopping the Plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

1.4.0 Long Term Standstill. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 15

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1.0.0 Why you need to perform regular maintenance duties . . . . . . . . . . . . . . . . . page 17

1.1.0 Overhaul Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 17 1.2.0 Maintenance of Separator Vessel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 18 1.3.0 Maintenance of Evaporator Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 19 1.4.0 Maintenance of Condenser Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 20 1.5.0 Renewal of Plate Heat Exchanger Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . page 21 1.5.1 Removal of Old Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 21 1.5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22 1.5.3 Preparation of new Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22 1.5.4 Fitting new Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 22

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1.0.0 Pressure Testing Separator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 25

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1.0.0 Prevention of Scaling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27

1.1.0 Feed Water Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27

1.2.0 Chemical Dosage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 27 1.2.1 Scale Inhibitor Dosage Equipment for Feed Water . . . . . . . . . . . . . . . . . . page 28

1.2.2 Safety Precautions with the use of Chemicals . . . . . . . . . . . . . . . . . . . . . . page 29

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1.0.0 Test Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

1.1.0 Trouble Shooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 31

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1.0.0 Maintenance of Freshwater Pump Types PVVF 1525-1532-2040 . . . . . . . page 35

1.1.0 Overhaul of the Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 35

1.1.1 Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 36 1.1.2 Dismantling Pump Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 36

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1.0.0 Maintenance of Ejector Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39

1.1.0 Overhaul of the Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 39 1.1.1 Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 40

1.1.2 Dismantling Pump Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 42

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1.0.0 Salinometer Type DS-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 43

1.1.0 Technical Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 43

1.2.0 Installation (for DS-20). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 43 1.3.0 Instructions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44

1.3.1 Testing the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44

1.3.2 Adjustment of Alarm Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 44 1.3.3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 45

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1.0.0 Ordering Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47 1.1.0 Alfa Laval Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 47

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The freshwater generator is not to be operated in polluted water or within

20 miles from the coast

Freshwater must not be produced from polluted water, as the produced water can be unsuitable for human consumption.

If manuals are translated to local language the unit comply with the EEC Machinery Directive and EN 292-1/2 standards. For EEC land installations manuals MUST be available in local language before installing and operating the unit.

The unit also comply with EN 50081-2 and EN 50082-2 “Industry” with regards to the

EMC directive from EEC.

:$51,1*

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•Use ear protection in noisy environments.

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•Use correct lifting tools.

•Do not work under hanging load.

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•Wear gloves to avoid burns by hot surfaces.

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•Wear gloves to avoid cuts by sharp edges when handling machined parts.

•Wear helmet to avoid cuts by sharp edges during maintenance of the equipment.

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•Max. ambient temperature for the equipment is 50°C (122°F).

•Min. ambient temperature for the equipment is 0°C (32°F).

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The generator consists of the following components:

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separates the produced vapour from the brine.

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(heating section) Consists of a plate heat exchanger and is enclosed in lower part of the separator vessel.

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(cooling section) also consists of a plate heat exchanger placed in the upper part of the separator vessel.

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extracts incondensable gases from the separator vessel and the evaporator vessel and the evaporator vessel, and brine from the separator vessel.

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is a combined cooling/feed/ejector water pump. The pump supplies sea water for the condenser, jet water for the combined brine/air ejector and feed water for evaporation.

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extracts the produced water form the condenser and transfers it to the freshwater tank.

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continuously checks the salinity of the produced water. The alarm setpoint is adjustable.

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contains starters for the electric motors, control equipment and salinometer. The control panel is prepared for remote start/stop of all motors.

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extracts condensate from the evaporator section.

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for regulating the temperature of the hot water loop and pressure conditions of

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:$51,1*

The freshwater distiller is not to be operated in polluted water or within 20 miles from the coast.

Freshwater must not be produced from polluted water, as the produced water can be unsuitable for human consumption.

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The steam valve VA-SS-02 is a combined steam pressure regulating and safety cut off valve.

The steam pressure is regulated during operation by means of a controller mounted in the control panel. The controller gets the input signal from the temperature transmitter TT-SS-02 converting the actual steam temperature to an electric input signal

4-20 mA.

The output signal from the controller is given to an electric-pneumatic positioner on the combined steam pressure regulating and safety cut off valve.

The electric pneumatic positioner regulate the air to the actuator which equipped with a spring return close.

The actuator will close the valve in case:

1.Air failure in operating airsystem.

2.Too high steam temperature detected by temp. transmitter TT-SS-02. In case of malfunction of the desuperheating system, or because of too high steam inlet temperature from the steam supply system.

3.Low vacuum.

4.Low feedwater pressure.

5.Electric power supply failure.

6.Malfunction of the desuperheating system. (too high steam temperature acc. to set point of the controller causing re. valve VA-CO-02 fully opened)

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The desuperheating system secure saturated steam conditions in the steam before it enters the heat exchanger.

The amount of water injected in the steam requited during operation by the flow regulating valve VA-CO-02, getting the input from a controller mounted in the control panel.

This controller gets the signal from the temperature transmitter TT-SS-02 converting the actual team temperature to an electric input signal 4-20 mA.

The solenoid valve VA-CO-01 is controlled by the same control circuit mentioned in sect. 1.3.1 item 2, 3, 4, 5 and 6.

If the valve VA-CO-02 is fully open for more than 10 minutes, a limit switch will close for air inlet and condensate inlet.

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Solenoid valves VA-FR-02 and VA-FR-05 are controlled by the salinometer in the control panel. During normal operation valve VA-FR-02 is open and VA-FR-05 is closed. In case of high salinity the valve position will change.

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Operating Instructions

WARNING

DO NOT operate the plant in polluted water.

Freshwater must not be produced from polluted water, as the produced water will be unsuitable for human consumption.

1.0.0 Starting and Stopping Procedure

CAUTION

Before starting up please observe instructions for feedwater treatment, see “Chemical dosing of scale control chemicals”.

Please refer to P1-diagram (see “FWG Order Specification”).

1.1.0Starting

1.Open valves on the suction and discharge side of the ejector pump.

2.Open overboard valve for combined brine/air ejector.

3.Close air screw VA-El -01 on the separator.

4.Start ejector pump to create a vacuum of mm. 90%.

Pressure at combined brine/air ejector inlet minimum 300 KPa .

Back pressure at combined brine/air ejector outlet maximum 60 KPa.

For D-PU-36-125 CC only:

5.Open condensate inlet and outlet valves.

6.Start condensate supply to condenser by adjusting by-bass valve step wise, inlet the desired condensate flow is reached.

Operating Instructions

1.1.1 Evaporation

When there is a minimum of 90% vacuum (after maximum 10 minutes).

7.Open valve for feed water treatment VA-FT-01.

8.Secure that the air inlet for steam pressure regulating valve VA-SS-02 and desuperheating flow regulating valve VA-CO-02 is open (500-700 KPa).

9.Secure that the condensate inlet for de superheating is open (maximum 1.3

MPa).

10.Open the valve for condensate outlet to main condenser.

11.Open the main steam shut-off valve.

12.Set the operating mode for desuperheating on the temperature controller to the

MANUAL , then open the flow regulating valve VA-CO-02 (40~50 ) by using two arrow buttons on the temperature controller .

The valve opening value( ) is displayed in display window of the controller when the operating mode is manual, then the valve opening value can be adjusted manually by using two arrow buttons.

13.Make sure that the set point of steam pressure on the steam pressure controller is “0”.

Set the operating mode on the steam pressure controller to the AUTO , then open the steam pressure regulating valve VA-SS-02 gradually(5-10 KPa/min. ) by adjusting the steam pressure set point on the steam pressure controller until the specified steam pressure is reached(maximum 75 KPa A).

14.Start condensate pump immediately when the indication lamp for “Steam Valve Open” is lit up during above step 13.

●The condensate pump can not be started before the indication lamp for “Steam Valve Open” is lit up.

15.Change the operating mode for desuperheating on the temperature controller to AUTO when steam temperature is reached to 85 during above step 13.

CAUTION

The temperature setpoint for desuperheating should be higher(2~3 ) than saturated temperature at current heating steam pressure.

Operating Instructions

1.3.0Stopping the Plant

1.Close the steam pressure regulating valve VA-SS-02 by adjusting the set point for the steam pressure controller in control panel slowly (step-wise) to 0 .

●The condensate and fresh water pumps are automatically stopped .

2.Close valve for air inlet.

3.Close the main steam shut-off valve.

4.Close valve for condensate for desuperheating inlet.

5.Close valve for feedwater treatment VA-FT-01.

6.Keep ejector pump running until the distiller unit is cooled down.

*If cooling down is performed correctly, the surface temperature at evaporator section(lower frame surface) will be below 40 .

7.Stop the ejector pump.

8.Open air screw VA-El-Ol to release a vacuum.

9.Close valves on the suction and discharge side of the ejector pump.

10.Close overboard valve for combined brine/air ejector.

11.Close the valve to freshwater tank.

CAUTION

All valves must be shut, while the distiller is out of operation. Except air screw

1.4.0 Long Term Standstill

If the distiller is out of operation for a period longer than 14 days, please observe

“Maintenance of separator vessel”.

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Regular maintenance of the plant will improve performance and availability.

The maintenance schedule on the following pages will tell you how often service should be performed on the main components.

As the actual operating conditions of the plant are of major influence on the life time, the overhaul dates are not obligatory but only recommended intervals.

When the plant has been in operation for a longer period of time and experience has been established as to the actual performance, it will be possible to adapt the maintenance schedule.

For service on minor components please refer to component instructions.

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The separator vessels and the pressure plates for the heat exchanger sections (evaporator and condenser) are made of stainless steel with a special chemical treatment. This treatment will reestablish normal surface oxidation after workup at the factory. The preparation is a natural protection of the stainless steel.

&$87,21

To preserve this natural protection DO NOT scrape or scratch the inside surface of the separator vessels.

Further, there are isolating layers on the separator inside walls, where the heat exchanger sections are mounted.

Whenever the sections are dismantled, these isolating layers must be checked for defects. Repair any defects according to the maintenance guide for glass flake coating.

Whenever the separator vessel is opened,

•check that the anodes are functioning

If the anodes are not functioning and/or worn, replace them.

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If the unit is stopped for a longer period than 14 days.

•Open separator covers and clean unit inside with freshwater.

•Let the unit dry out completely, before closing covers.

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Clean evaporator as follows:

1.Remove bolts in front cover, and open.

2.Loosen the 6 nuts in plate stack gradually, so that no nut is carrying the entire load alone

3.Remove plate stack.

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If some of the gaskets come loose on removing plate stack, please see section 1.5.2

4.Submerge plates completely in a hot, inhibited acid bath at maximum 50ºC. For further instructions see “Chemical dosing of scale control chemicals”.

:$51,1*

Always follow carefully the suppliers instructions when using inhibited acids.

Remember to neutralize according to suppliers instructions.

5.Examine plates and gaskets for possible damage, and remove damaged plates and/or replace damaged gaskets.

6.If a defective plate is found, remove the plate together with one of the adjacent plates.

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The assembly measurements must be reduced with 5.4 mm per plate, if plates are removed from plate stack.

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The ES and EE plate cannot be removed but must always be replaced, with a corresponding plate.

7.Reassemble evaporator section in accordance with assembly scheme.

8.Tighten plate stack to measurements stated in technical specification.

9.Pressure test evaporator section before closing front cover.

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10.When the evaporator section is found to be tight, close front cover and tighten bolts.

11.Retighten, when vacuum has been reestablished.

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Clean condenser as follows:

1.Remove bolts in front cover, and open.

2.Loosen the 6 nuts in plate stack gradually, so that no nut is carrying the entire load alone.

3.Remove plate stack.

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If some of the gaskets come loose on removing plate stack, please see section 1.5.2

4.Scrub plates with a soft brush and plain hot water at maximum 50°C.

5.Examine plates and gaskets for possible damage, and remove damaged plates and/or replace damaged gaskets.

6.If a defective plate is found, remove the plate and one of the adjacent plates.

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If there are leaks in the system, it will be necessary to carry out a pressure test in order to identify the leak:

1.Close valve on discharge side of combined cooling water/ejector pump.

2.Close discharge valve on overboard line from combined brine/air ejector.

3.Close valve on discharge line to freshwater tanks.

4.Open separator vessel in order to vent the vessel, when supplying water for pressure test.

5.Supply water (sea or freshwater) at the socket for the connection of feed water treatment.

&$87,21

Maximum pressure on the separator vessel is 150 KPa (1.5 kp/cm²) (21

PSI).

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During the evaporation of sea water there is always a risk of scaling on the heating surfaces. This will lead to a reduction of the K-values of the heating surface and decreasing freshwater production and reduction of plant efficiency.

In order to effectively prevent scaling the operators must be aware of the factors influencing the scale formation.

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The feedwater ratio is an extremely important factor. It is defined by the relationship between the feedwater amount fed into the plant and the produced amount of freshwater.

If the feedwater ratio is reduced, the concentration will rise in the plant subsequently resulting in scale formations.

Two things may shift the feedwater ratio: first of all direct adjustment of the feedwater system, and secondly exceeding the maximum freshwater production laid out for the plant. The operators must observe the following rules at all times.

&$87,21

DO NOT adjust feedwater system. Feedwater pressure min. 300 max. 400

KPa g.

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In order to control scale formations on the heating surfaces and continuously ensure long operation periods without acid cleaning the plant, it is absolutely necessary to dose scale control additives to the feedwater. The operators must follow the instructions for chemical dosing given by the chemical supplier carefully.

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&$87,21

If the distiller is operated at boiling temperatures above 45°C without chemicals, frequent cleaning of the evaporator will be necessary.

We recommend that you do not operate the freshwater distiller without recommended chemical dosage at boiling temperatures above 45°C. Even at lower temperatures it can be recommended.

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Please refer to drawing, see “FWG Order Specification”.

•When adding chemicals mix thoroughly to ensure a homogenous blend of chemicals and water.

Use a fully soluble scale inhibitor, e.g. on polymer basis. The following products can be recommended:

NALFLEET Evaporator treatment 9-913

AMEROYAL EVAPORATOR TREATMENT

HEXAMETHAPHOSPHATE

1.Mix the required quantity for 24 hours operation in the tank according to maker’s instructions.

2.Adjust flowmeter to cover the maximum freshwater output from the distiller.

3.Flush the dosage system regularly.

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1USE eye protection and gloves. Avoid direct skin contact, eye contact or contact with clothes.

2CLEAN empty containers before disposal.

3If chemicals are spilled on clothes, rinse with water and dispose off clothes.

4If chemicals are spilled on the floor, rinse with water and suck remaining chemicals off with sand. Clean the spot immediately afterwards.

5Scale inhibitor is hazardous, if consumed in a concentrated solution.

If consumed by mistake.

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6If eyes get in contact with the chemicals, rinse for at least 20 minutes.

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Before taking any action, please fill in a test sheet to find possible causes of malfunctions.

Test sheets can be found in the back of this binder.

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The following instructions must be carefully observed whenever it becomes necessary to overhaul or repair the freshwater pump.

Please refer to drawing for item references in the text.

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1.Remove the QXWV on the SXPS FDVLQJ

2.Lift motor with SXPS FRYHU and LPSHOOHU clear of SXPS FDVLQJ .

3.Unscrew FRXQWHUVXQN VFUHZ (right hand thread).

4.Remove impeller. Normally, it can be removed without using dismantling tools.

5.Remove NH\

6.Remove the PHFKDQLFDO VKDIW VHDO

7.Inspect the ceramic ring, the carbon ring and the spring.

8.Replace mechanical shaft seal, if necessary. It is recommended to grease the shaft and seat for the ceramic ring with glycerine in order to make it easier to assemble the mechanical shaft seal. Please also observe separate instructions for mechanical shaft seal delivered together with the seal.

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9.Fit carbon ring, spring and spring holder on pump shaft.

10.Inspect impeller and the drilled sealing water channel for clogging, and clean.

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12. Reassemble in reverse order.

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In connection with the inspection be sure to measure the LPSHOOHU DQG ZHDU ULQJ

in order to secure that the clearance is no more than 0.5 mm on the diameter.

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The SXPS VKDIW must only be dismantled, if pump shaft or electric motor bearing has to be replaced.

In this case carefully observe “Dismantling pump shaft”.

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1.Dismantle the pump as described above.

2.Unscrew SRLQWHG VFUHZV

3.Carefully insert two screw drivers behind the pump shaft, and loosen it.

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The tool consists of a pipe (A), a disc (B) with hole for the screw (C) and a nut (D), washer (E).

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Place pipe around the shaft. Fasten the screw with nut and washer into the threaded hole (M12) on the shaft end.

Loosen shaft by tightening the nut while holding on to the screw.

&$87,21

DO NOT grind the motor shaft.

4.Mount the new pump shaft on the motor shaft.

5.Make sure that the pump shaft fits the motor shaft without any obstructions, before final shaft fitting as follows:

• Tap onto the end of the pump shaft slightly with a RUBBER hammer.

6.Tighten SRLQWHG VFUHZV as follows:

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The torque should be 5 Nm (0.5 kpm) and the maximum wobble 60 μ m.

7.Check the wobble of the pump shaft with a dial indicator.

8.Assemble the pump as described above.

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The following instructions must be carefully observed whenever it becomes necessary to overhaul or repair the above mentioned pump. Please refer to drawing for item references in the text.

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1.Remove the VHW VFUHZV in SXPS FRYHU

0RWRU ZLWK PRWRU EUDFNHW SXPS FRYHU DQG LPSHOOHU FDQ QRZ EH OLIWHG FOHDU RI WKH SXPS FDVLQJ

2.Unscrew the VFUHZ (right-hand thread).

3.Remove impeller.

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Normally, the impeller can be removed without using dismantling tools.

If not, you can fit dismantling screws into the two threaded holes in the impeller.

4.Remove the key 26 and the mechanical seal 8 (including spring holder, spring and carbon ring).

5.Inspect the ceramic ring, the carbon ring and the spring. Replace, if necessary

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‡8QVFUHZ VHW VFUHZ WR UHPRYH SXPS FRYHU IURP PRWRU EUDFNHW

LQ RUGHU WR JDLQ DFFHVV WR FHUDPLF ULQJ

,Q RUGHU WR PDNH LW HDVLHU WR DVVHPEOH WKH PHFKDQLFDO VHDO WKH VKDIW DQG ULQJ VHDW PD\ EH JUHDVHG ZLWK JO\FHULQH 3OHDVH DOVR UHIHU WR VHSDUDWH LQVWUXFWLRQV IRU PHFKDQLFDO VHDO GHOLYHUHG WRJHWKHU ZLWK WKH VHDO

‡$IWHU ILWWLQJ WKH FHUDPLF ULQJ ILW SXPS FRYHU WR PRWRU EUDFNHW

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6.Clean drilled cooling water channel in SXPS FRYHU

7.Inspect impeller and threaded holes for clogging.

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9.Reassemble in reverse order.

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In connection with the inspection, the LPSHOOHU and ZHDU ULQJV are measured in order to secure that the clearance is not larger than stated in the diagram below.

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If the clearance is too big, replace wear rings as follows:

1.Unscrew FRXQWHUVXQN VFUHZV

2.Pull out wear (seal) rings.

3.Fit new wear rings and tighten countersunk screws.

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The pump shaft may only be dismantled, if pump shaft or bearings, in the electric motor have to be replaced.

Carefully observe instructions for “Dismantling pump shaft”.

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'LVPDQWOLQJ 3XPS 6KDIW

If the VKDIW has to be dismantled due to a defect or if electric motor bearing has to be replaced, proceed as follows:

1.Unscrew SRLQWHG VFUHZV

2.Remove VKDIW . Normally this can be done without using dismantling tools.

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DO NOT grind the motor shaft.

3.Fit VKDIW

4.In order to make sure that the coupling is fitted correctly, tap slightly at the shaft end with a RUBBER hammer.

5.Tighten SRLQWHG VFUHZV with a torque of 35 Nm (3.5 kpm).

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1.Open front cover.

2.Select correct voltage select according to the main supply voltage 115 V or 230 VAC.

3.Screw salinometer on to bulkhead with six nuts.

4.Connect necessary cables to the terminals.

5.Close front cover.

6.Test salinometer function (see instructions for use).

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LEDS are off.

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Remove electrode unit and inspect/clean after every 1000 hours of operation. Use a clean and dry rag. Avoid touching the electrodes with the fingers.

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When ordering spare parts please always state:

1.Serial number.

2.Capacity.

3.Designation.

4.Spare parts drawing number.

5.Position number.

6.Article number.

In order to identify article numbers, please refer to FWG Order Specification and other drawings.

When ordering parts for pumps proceed as follows:

1.Find article number in the list of drawings.

2.Check spare part drawing and item list with corresponding article number to identify the item to be ordered.

$OID /DYDO 6HUYLFH

The $OID /DYDO group is represented in all major ports of the world.

DO NOT hesitate to contact your $OID /DYDO representative if you have any questions, problems or require spare parts.

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Use of Instructions

Although Warning hazards are related to personal injury, and Caution hazards are associated with equipment or property damage, it must be understood that operation of damaged equipment could, under certain operational conditions, result in degraded process system performance leading to personal injury or death. Therefore, comply fully with all Warning and Caution notices.

Information in this manual is intended only to assist our customers in the efficient operation of our equipment. Use of this manual for any other purpose is specifically prohibited and its contents are not to be reproduced in full or part without prior approval of Technical Communications Department, ABB Ltd.

Health and Safety

To ensure that our products are safe and without risk to health, the following points must be noted:

1.The relevant sections of these instructions must be read carefully before proceeding.

2.Warning labels on containers and packages must be observed.

3.Installation, operation, maintenance and servicing must only be carried out by suitably trained personnel and in accordance with the information given.

4.Normal safety precautions must be taken to avoid the possibility of an accident occurring when operating in conditions of high pressure and/or temperature.

5.Chemicals must be stored away from heat, protected from temperature extremes and powders kept dry. Normal safe handling procedures must be used.

6.When disposing of chemicals ensure that no two chemicals are mixed.

Safety advice concerning the use of the equipment described in this manual or any relevant hazard data sheets (where applicable) may be obtained from the Company address on the back cover, together with servicing and spares information.

GETTING STARTED

This manual is divided into 5 sections which contain all the information needed to install, configure, commission and operate the COMMANDER 250. Each section is identified clearly by a symbol as shown below.

Displays and Function Keys

•Displays and function keys

• LED Indication

•Error Messages

Operator Mode (Level 1)

•Operator menus for:

–Standard controller

–Heat/Cool controller

–Remote Set Point controller

–Profile controller

–Multiple Fixed Set Points controller

•Auto tuning

Configuration Mode (Levels 5 and 6)

• Level 5 – Basic hardware and control functions

•Level 6 – Ranges and passwords

Installation

• Siting

•Mounting

•Electrical connections

Symbol Identification and Section Contents

2-1

CONTENTS

Information.

The fold-out page inside on the back cover of this manual shows all the frames in the programming levels. Space is provided on the page for writing the programmed setting or selection for each frame.

2-2