ROCHEM RO-Wasserbehandlung GmbH.pdf

(1)

ROCHEM RO-Wasserbehandlung GmbH

Knickberg 1a, D - 21077 Hamburg

(

+49-(0)-40-7038577-0

4

+49-(0)-40-7038577-29

Operation Manual V 0.1

Date: 22.11.2008

Type of Unit: RO-1530 ST03-30S

SEA-WATER DESALINATION (S)

(2)

I N T R O D U C T I O N

I. Contents

Page

I. Contents 2

II. Preface 4

III. How to Use this Manual 5

IV. Safety Remarks 6

V. Log Sheet 7

VI. Warranty 8

VII. Notes 9

VIII. Service 10

Order Form for Spare Parts

How to Contact our Service Department

1) Functional Description

1.1 Description of Process 12

1.2 Unit Arrangement 13

1.3 Controls, Displays & Measurements 18

1.4 Safety and behavior rules 19

2) Operating

2.1 Commissioning 20

2.2 Starting the Unit 21

2.3 Monitoring during Normal Operation 24

2.4 Stop with Rinse 25

2.5 Sandfilter Backwash 28

2.6 Circuit Cleaning 31

2.7 Preservation 39

2.8 Disinfection 45

3) Fault Indication & Finding

3.1 Error Codes and Implication 47

3.2 Faults without Lamp Indication 49

4) Maintenance, Cleaning & Calibration

4.1 Schedule for Checks & Maintenance Works 50

4.2 PLC 52

(3)

4.4 Electric Motor 57 4.5 Pressure Switch 58 4.6 Pressure Transmitter 59 4.7 Conductivity Meter 60 4.8 Filter Pump 67 4.9 Plunger Pump 72 4.10 Sand-Filter 79 4.11 Cartridge Filter 81 4.12 Deacidification-Filter 79 4.13 PT Module 82

4.14 Motor Control Valve 110

4.15 Pulsation Damper 117

5) Specification

5.1 Layout Diagram, Installation Plans 119

5.2 Pipe & Instrument Diagram 123

5.3 Parts List 125

5.4 Tools & Resources 128

5.5 Unit Specification 129

5.6 Water Feed Analysis 131

5.7 Electric Schematics 132

Annex:

(4)

II. Preface

ROCHEM Reverse Osmosis Systems have been designed as space-saving modular plants, in order to provide to you a flexible system, where space is restricted.

All components and materials used have been manufactured to the highest quality requirements, guaranteeing long life on a self-controlling 24 hours operation. ROCHEM systems are simple to operate and require a minimum of service. More than 2100 plants supplied worldwide confirm this.

ROCHEM Reverse Osmosis Systems meet the requirements and specifications of the following organizations:

Deutsches Institut für Normung

Verband Deutscher Elektrotechniker e.V. Verein Deutscher Maschinen Anstalten Verein Deutscher Ingenieure

Germanischer Lloyd Det Norske Veritas

Registro Italiano Navale (RINA) Lloyd's Register of Shipping Bureau Veritas (French)

ABS (American Büro of Shipping) Russian Maritim Register of Shipping

(5)

III. How to Use this Manual

This manual should provide to you all the information required for operating and maintaining your ROCHEM Reverse Osmosis System. When designing this system great regard has been paid for safety. When working on this or any other system there is always an element of danger, which the owner, operator and technician need to be aware of. Appropriate maintenance minimizes any danger and maximizes availability.

Any work of maintenance or repair, must be carried out correctly. Appropriate technical knowledge as well as any applicable regulations for safety and environment must be provided by the owner, operator and/or the maintenance personnel.

(6)

IV. Safety Remarks

F

The fresh water generator must not be operated within harbour area. Or in

waters polluted with oil.

F

When operating this equipment certain parts are electrified. Ignorance of operating procedure can cause death, injury or material damage. ANY WORK AT OR ON THE

PLANT MUST ONLY BE DONE BY PERSONS TRAINED ON THE MACHINE AN D FAMILIARIZED WITH THE INFORMATION IN THIS MANUAL. REPAIR AND MAINTENANCE MUST ONLY BE DONE BY APPROPRIATELY QUALIFIED TECHNICAL PERSONNEL.

F

PROTECTION, SUCH AS PULLEY / BELT GUARDS, MAY BE REMOVED ONLY

FOR MAINTENANCE OR REPAIR AND MUST BE RE INSTALLED IMMEDIATELY AFTER ANY SUCH REPAI R OR MAINTENANCE HAS BEEN COMPLETED.

The owner and user, are responsible for complying to all prevailing laws to maintain a safe working environment.

For plant protection please note the following important items:

F

There must not be any visible movement (vibration/pulsation) of the pointer on

pressure gauge PI160. If this occurs then one of the following is causing this fault: 1-

Some nitrogen gas has leaked from the pulsation damper. 2- The diaphragm in the pulsation damper is damaged. 3- High pressure pump valves or packing are defective.

(8)

VI. Warranty

ROCHEM RO-WASSERBEHANDLUNG GMBH. Warrants that this system will produce

pure water within its designed limitations for a period of twelve (12) months from the date

of dispatch, provided that the system is operated on feed water of the minimum standard in

accordance with the submitted reference analysis and that the operator adheres exactly to

the installation, operating and maintenance instructions and recommendations.

Components of the system supplied by ROCHEM RO-WASSERBEHANDLUNG which are

found to be defective through poor workmanship or materials, will be repaired or replaced

if their performance is proven to be less than normal by industry standards.

This warranty will be considered null and void if a unit is operated with malfunctioning

components or controls which result in the system being unable to meet its designed

performance.

ROCHEM RO-WASSERBEHANDLUNG will repair or replace a unit or components found

to be defective due to bad workmanship or materials on a free of charge ex works

Hamburg basis.

A defective unit or component may be returned, freight prepaid, to

ROCHEM RO-WASSERBEHANDLUNG for repair or replacement ex factory, as

determined by ROCHEM RO-WASSERBEHANDLUNG, should the unit be found defective

under this warranty.

This warranty does not cover any system or component which fails, due to damage from

mishandling, misuse, substandard feed water, improper maintenance or neglect of

maintenance, poor or improper installation or incorrect electrical supply. This warranty may

also be voided if serial numbers and or components are found to be mutilated or missing.

This warranty does not cover or apply to consumable items such as filter elements,

lubricants, pulsation dampers, shaft seals of centrifugal pumps, valves, and seats of the HP

pumps or chemicals used in the operation or maintenance of the system.

The terms of this warranty become effective on dispatch of the equipment from our factory.

There are no warranties expressed or implied which go beyond the foregoing statement.

(9)

(10)

VIII. Service

Order Form for Spare Parts

To:

Telephone: + 49 (0) 40 7038577-0 Telefax: +49 (0) 40 7038577-29

e-mail:

Page No1.

For Vessel

Unit Type

Serial No.

Date

Authorised By: Approved BY: Delivery Required By:

Delivery Instructions: Order No.

Additional Instructions

To Be Charged / Invoiced to:

To ensure that the correct parts are delivered, please complete each block. The section block refers to the header number of the page that contains the description or servicing of the item (if any).

ITEM Qty Part No. Description Section

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Rochem RO-Wasserbehandlung GmbH Knickberg 1a, D - 21077 Hamburg

(11)

Order Form for Spare Parts

To:

Telephone: + 49 (0) 40 7038577-0 Telefax: +49 (0) 40 7038577-29

e-mail:

Page No2.

For Vessel

Unit Type

Serial No.

Date

ITEM Qty Part No. Description Section

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 Rochem RO-Wasserbehandlung GmbH

(12)

1) FUNCTIONAL DESCRIPTION

1.1 Description of Process

This fresh water generator uses the principle of the Reverse Osmosis.

If two saline liquids are separated from another by a semi-permeable membrane, which does only allow molecules over a certain size to pass through, then, these liquids will tend to equalize their concentrations. This process is called Osmosis. Should one of these liquids be salt water and the other pure water, water molecules would diffuse through the membrane towards the salt water and dilute this. A certain pressure would occur in the system when this happens this pressure is called the Osmotic Pressure.

For water desalination or dechlorination this process is artificially reversed, Reverse Osmosis. The system is subjected to a pressure above the Osmotic Pressure, causing a molecule movement into the reverse direction: Only the water molecules diffuse from the salt water through the membrane to the pure water side. The ions of the salt water cannot pass through and remain on the salt water side.

Within the ROCHEM PT modules the REVERSE OSMOSIS process takes place whilst the feed water is in motion, flowing over the membrane surfaces. About 30% of the water in the feed water passes through the membrane, the remaining 70% retaining the rejected salts. The feed water is gradually increasing in salt concentration as it flows through the module. The salts filtered out and left behind by the membrane are carried away and discharged, in case of sea water desalination they are returned to the sea as brine (concentrate). The pure water “permeate” produced flows to a fresh water storage facility.

The amount of pure water that can be produced depends on the following factors: 1- the operating pressure,

2- the salt content of the feed water, 3- the feed water temperature.

For example the oceans have a salt content of approximately 3½ %. whereas the Red Sea has a much higher salt content of approximately 4½ %,

To overcome the increase in salinity the operating pressure is increased.

Each standard system has been designed for a certain production rate of pure water, assuming a feed water temperature of 25°C. For each 1°C drop in feed water temperature the permeate production drops by 3%. For example: Designed output at 25°C is 100 l/h.

Then with a feed temperature of say 15°C the permeate output is 100-30% = 70 l/h.

A rise in temperature above 25°C increases the pure water production only slightly. 25°C is the optimum feed temperature.

Note: Some systems can be supplied to produce the required quantity with a low feed water temperature.

(13)

1.2 Unit Arrangement

The water desalination system consists mainly of the following components:

Sandfilter safety valve control panel

(master-switch) conductivity display control cabinet flowmeters Sample valves Deacidification Filter removable pump carrier (PK130, PP160, VS160)

sandfilter cartridge filters manual valves gauges

(14)

BRIEF DESCRIPTION OF MAJOR COMPONENTS

The plant is controlled by a PLC unit Telemecanique “TSX-Micro”. The control program is stored on a microchip called “EEPROM“. When switching on the plant the processor loads the program automatically from the EEPROM into its Random Access Memory. By means of a programming device, connected to the serial interface of the processor unit, changes can be made to the program.

The following valves must be set manually for the different operating functions:

VK121 VK132 VK134 VK133 VK171 normal operation stop rinse circuit cleaning sandfilter backwash - air rinse - sandfilter backwash - water rinse - valves handle showing normal functional flow valve closed

(15)

Pressure switch PS150 is activated by the water pressure before the

high pressure pump and switches the plant off in the event of insufficient feed (to protect the pump against cavitation). It is de activated when the pressure drops below a set value of 0.5 bar. High pressure pump will not start if this pressure switch is not activated. When not activated fault will show.

Pressure switch PS170 (if installed) monitors the pressure in the

concentrate line from the PT module. It stops the plant at a pressure of 6 bar, in order to avoid damage to the module. Most probable cause for this to be activated is that a valve on the concentrate discharge is closed. This pressure switch is activated when the pressure goes above the 6 bar setting. When activated fault will show.

Pressure switch PS180 stops the plant when the pressure in the

permeate line rises to 3 bar. This is to save the PT module from damage. This pressure switch is activated when the pressure goes above 3 bar. When activated fault will show.

Centrifugal pump PK130 filter pump, delivers the feed water at a

pressure of up to 4 bar through the cartridge filter and from there to the high pressure pump PP160. This centrifugal pump has its own integral electric motor.

The sand filter retains all sediment particles over 50 µm in size. As the density of these particles increases, the pressure drop across the inlet and outlet increases. To reduce this pressure drop and remove these particles, the sandfilter is backwashed by air and feed water (generally when 2 to 2.5 bar are reached).

Within cartridge filter FC140 sediment particles of 10 µm or more in size are retained within the filter element. These cartridge filter elements have to be replaced when dirty, they cannot be cleaned.

High-pressure pump PP160 is a positive displacement pump. (plunger

pump) this pump delivers feed to the PT modules at a pressure of up to 65 bar. (note: pressure is controlled by VS160). The pump is powered through a belt drive from a three-phase motor. Minimum feed pressure to

(16)

The pulsation damper fitted on the high-pressure pump discharge converts the pressure fluctuations, common for a plunger pump, into a steady pressure. It consists of a pressure vessel, internally separated by an diaphragm into two sections. The outermost section is filled with nitrogen at a pressure of 30 bar. The pulsation’s from the 3 plungers of the HP pump are absorbed by the gas pressurized membrane. It is normal to observe pulsation’s in the pointer of PI160 when pointer is rising through 25 to 32 bar, (resistance against gas pressure).

Innerhalb der ST-Module wird das Rohwasser unter dem angelegten Druck durch die Membrankissen gepresst. Das Wasser dringt durch die Membranen und wird als Permeat abgeführt; Salzmoleküle und andere Verunreinigungen des Rohwassers können die Membran größtenteils nicht passieren (Rückhaltung bei NaCl 98,5-99%), bleiben zurück und werden vom nachfolgenden Rohwasser mitgenommen, so dass sich dieses von Modul zu Modul weiter aufkonzentriert. Das Konzentrat wird (bei Seewasserentsalzung) in das Meer zurückgeleitet.

The pressure in the PT module or modules, is automatically controlled and adjusted by motor valve VS160, which in turn is controlled by the PLC. The plant is designed for a maximum operating pressure of 65 bar.

The operating pressure is 65 bar with normal sea water.

This valve should never be fully closed during operation. When in operation this valve reduces the flow area to increase the pressure between the HP pump discharge and the outlet of the modules. If this valve closes a fault will show.

This valve can be manually operated by a hand wheel should the power unit fail.

The concentrate flows from the unit through the manually operated concentrate valve VK171, which allows three positions:

(a) at normal operation, discharge (e.g. sent overboard back to sea), (b) at circuit cleaning, returning to cleaning tank B111,

(c) at closed position.

A conductivity sensor transmits the conductivity of the permeate to the conductivity meter, (measuring the remaining salt content). An increase in conductivity implies a higher salt content. The value displayed in the conductivity meter is in µs/cm. As a rough guide, if the reading shown is divided by 2 the figure obtained would be the approximate value of salts as p.p.m.(mg/l).

(17)

The pure water solenoid valve VE1801 is automatically controlled by the conductivity of the permeate. If the maximum pre-set value (1000 µS/cm for sea-water desalination, 50 µS/cm for mains water purification) is exceeded, VE1801 sends the permeate into the cleaning tank (from there to drain). When good permeate is produced, at a quality with a lower conductivity than the maximum pre-set value, then VE1801 sends this water to fresh water storage.

If the plant operates more than 15 to 20 minutes at high conductivity (over the set limit), it automatically shuts down and a fault signal is displayed.

As an option the plant can be equipped with a fresh water storage control. Starting and stopping the unit will then be actuated by 2 level switches fitted in the storage tank. When the low level switch is activated, the plant will start automatically. When the tank is full the high level switch will be activated and the unit stops and will be in a “stand by” mode waiting to be restarted either by remote (level switch) or manually by pressing the start button.

(18)

1.3 Controls, Displays and Measurements

The control panel is equipped with a main switch, a conductivity meter and 5 lamp buttons: lamp button color function

1 green START

2 yellow STOP WITH RINSE

3 yellow CIRCUIT CLEANING

4 yellow SANDFILTER BACKWASH

5 red FAULT RESET / LAMP CHECK

The flow meter FI180 is installed in the permeate line from the PT module(s). Inside the plastic body there is a floating indicator. When its top edge aligns to the appropriate mark on the scale, indicates the rate of pure water produced. The scale is marked in liters per hour on the front of the transparent plastic body.

The floating indicator 1 is magnetic and actuates a eletrical siglal to the PLC. The PLC in turn sends a signal to the motor valve VS160. VS160 controlled the pure water flow.

The conductivity meter displays the conductivity of the permeate, measured by the conductivity sensor. Conductivity provides a measure for the salt content remaining: The higher the conductivity, the higher the salt content.

The pressure gauges PI140 and PI150 (PI140-PI150) indicate the pressure loss across the cartridge filter, PI130-PI140 indicates the pressure loss across the sandfilter. If the pressure loss reaches an approx. value of 2 to 2.5 bar, the sandfilter must be backwashed.

PI160 shows the operating pressure of the unit, shown as the inlet pressure to the PT Modules.

The pressure gauges are filled with a glycerin type liquid, this is to minimize pointer vibration.

(19)

1.4 Safety and behaviour rules

Intended use

This system is use for drinking water processing.

Briefing

When operating this equipment certain parts are electrified. Ignorance of operating procedure

can cause death, injury or material damage. ANY WORK AT OR ON THE PLANT MUST

ONLY BE DONE BY PERSONS TRAINED ON THE MACHINE AND FAMILIARIZED WITH

THE INFORMATION IN THIS MANUAL. REPAIR AND MAINTENANCE MUST ONLY BE

DONE BY APPROPRIATELY QUALIFIED TECHNICAL PERSONNEL.

Electrical endangerments

During the operation of electrical devices some sections are energized dangerous. Neglect the

warning notes can occur death, bodily injury, or damages to property. The cabinets and devices

are only to be opened by qualified personnel.

Mechanical endangerments

The system was designed in the state of the art. In order to ensure safe handling of the system,

all preventive measures have to checked for effectiveness. The operator has to ensure by

regular maintenance that the function of the respective protection devices will preserved.

Detailed instructions, as far as necessary, can be found in the appropriate chapter.

Chemical endangerments

The operation of the unit and functions depending upon field of application different chemicals

(e.g. cleaner, pH stabilizers, flocculant, disinfectant). The respective safety notes can be found in

the appropriate section.

(20)

2) OPERATING

2.1 Commissioning

Before commissioning the plant, please take note of the following:

First, please read the safety remarks in the first pages of this manual!

LIMITS OF PERFORMANCE

Maximum flow rates Feed Water: 800 l/h

Permeate: Designed + 30%

Note: High feed flow will cause an unacceptable

pressure loss across the PT modules and a higher ampere loading on the HP pump motor

Operating pressure

Maximum operating pressure

65 bar 73 bar

Before first commissioning the plant the following checks must be made:

ASSEMBLY CHECKS BEFORE FIRST COMMISSIONING

Control cabinet

- Check voltage

- Check frequency

The voltage must be checked across each two phases: from L1 to L2

from L1 to L3 from L2 to L3

The plant must only be operated at the ratings it was designed for. - Check control voltage Check transformer output voltage. For all PLC inputs, pressure

switches and level switches 24 V DC +/-5%. must be obtained.

PT Modules Check torque loading.

Pressure switches

PS150, PS170 and PS180

Check correct settings (for adjustment see chapter 4.5 in the section for “Maintenance, Cleaning and Calibration“).

(21)

2.2 Starting the Unit

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Lamp signals when unit is shut-down: ¡¡¡¡¡

Step No.

Action Effect Lamp signal

1 Open all valves to and from the RO unit.

¡¡¡¡¡

2 Open VK111 - Drain all water from cleaning tank.

¡¡¡¡¡

3 Set valves to Normal

operation:

VK121 VK132 VK134 VK133 VK171

normal operation

4 Turn master-switch to “I” (On).

- Conductivity display illuminated.

¡¡¡¡¡

5 Press lamp button 1. - Motor control valve VS160 is open.

_?

_¡¡¡¡

- When WS161 sends signal "valve

completely open“ to the PLC, filter pump PK130 starts.

- High pressure pump PP160 starts 300 seconds. after pressure switch PS150 has given start signal.

- Motor control valve VS160 runs towards close to bring up pressure. - Pressure transmitter PT160 stops

pressure rise when maximum pressure or maximum permeate flow rate is reached. VE1801 sends permeate into tank B111, since conductivity limit is exceeded.

(22)

1st Sequence after pressing of START button and unit running. Permeate quality has not reached the set level

and made Permeate is being Dumped.

(23)

2nd Sequence, Permeate Conductivity has fallen below the set point and Permeate is now being sent to

Storage.

(24)

2.3 Monitoring during Normal Operation

The following functions are continuously monitored:

Parameter Device Set values

Feed pressure pressure switch PS150 (min. pressure) 0,5 bar

Pressure at inlet to module pressure transmitter PT160 (max. pressure) 73 bar

Pressure of discharged concentrate

pressure switch PS170 (max. pressure) 6 bar

Pressure of delivered permeate pressure switch PS180 (max. pressure) 3 bar

Flow rate of permeate flow meter FIS 180 (nominal capacity), shut-down delayed

1300 l/h

Conductivity of permeate conductivity sensor/meter CIT80 (max. value) 1000 µS/cm (sea water) or 50 µS/cm (town mains water)

Amperage of electric motors motor circuit-breakers (see electric

schematics and rating plates)

FUNCTIONS FOR MANUAL CONTROL

Lamp check: By pressing lamp button 5 all button lamps will illuminate. Replace any faulty lamp

immediately.

FAILURE OF UNIT

In the event of an operating failure the plant is automatically stopped and a fault signal is displayed by the lamp buttons being illuminated in various sequences. Lamp button 5 flashes, the yellow lamp buttons 2,3 and 4 are either on or off in a certain combination indicating the cause of the failure.

A table of all fault signals is located at the front of the control cabinet. (Also refer to section “Fault Indication & Finding”).

After correcting the problem the plant can be restarted after pressing lamp button 5 to clear the fault from the PLC.

(25)

2.4 Stopping the Unit

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Lamp signal at unit shut-down: ¡¡¡¡¡

Step

No. Action Effect Lamp signal

1 Close valve VK111. - To stop cleaning tank emptying

l

_¡¡¡¡

2 Press lamp button 2

(STOP WITH RINSE)

- VE1801 changes over to fill tank

B111 with permeate.

?

l

¡¡¡

- Tank B111 full LS1113 activated - Motor control valve opens to reduce

operating pressure.

- Unit stops.

_¡

_?

_¡¡¡

3 Set valves as below: (to take suction from cleaning tank)

VK121 VK132 VK134 VK133 VK171

stop rinse

4 Press lamp button 1 - Rinse with permeate starts.

_¡

l

_¡¡¡

- Low level switch LS1111 activated

(tank empty). Unit stops.

¡¡¡¡¡

5 To protect the unit for external

pressure fluctuations set the valves as below

VK171

(delivery to cleaning tank)

VK121

(26)

1st Sequence after pressing of STOP/RINSE button. Solenoid Valves VE1801/2 change over to fill tank B111

with permeate.

(27)

2nd Sequence after pressing of STOP/RINSE button. Centrifugal Pump PK130 sucking permeate from

cleaning tank to rinse the Unit.

(28)

2.5 Sandfilter Backwash

A sandfilter backwash is necessary, when the pressure loss across the sandfilter due to sedimentation exceeds 2 or - as a maximum - 2.5 bar.

Note: Unit must be stopped to start this procedure

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

How to carry out a sandfilter backwash:

Step

No. Action Effect

Lamp signal

Unit is stopped

¡¡¡¡¡

1 Close VK111, if open. (to stop draining of cleaning tank B111)

(SANDFILTER BACKWASH).

¡¡¡

?

¡

3 Set valves for air rinse:

VK121 VK132 VK134 VK133 VK171

sandfilter backwash - air rinse -

4 Air treatment: Connect air supply to connecting branch VF139. 5 Open VK136 and flush sandfilter

for 10 min. with air (max. pressure 0.5 bar)

If unsure about the low air pressure, Put your ear against the sand filter and listen. When air is heard “Bubbling” stop increasing the air pressure.

6 Disconnect air supply at connecting branch VF139.

7 Open valve VK121: to sea suction

8 Close valve VK136

9 Water treatment: Press

lamp-button 1 (START)

Filter pump PK130 starts. Sandfilter is rinsed with raw water. Raw water passes the sandfilter and flows through brine outlet back to sea. Unit stops automatically.

¡¡¡

l

¡

10 After approx. 10 to 15 min. of water rinse press STOP/RINSE.

(29)

1st Sequence after pressing of SFB button.

(30)

2nd Sequence after pressing of SFB button.

(31)

2.6 Circuit Cleaning

Organic and inorganic substances within the feed water are deposited on the membrane surfaces (described as “Fouling and Scaling”). This causes an increased salt content in the permeate and a reduction in the fresh water production. By circuit cleaning these sedimentation’s are flushed off and removed.

A circuit cleaning is required, when the fresh water production has dropped by 10 to 15% (equal water temperature assumed). Generally, it should be carried out every 3 to 4 weeks.

CHOICE OF CLEANER:

The ROCHEM cleaning solutions are specially formulated and made for the membranes used in our PT modules. Use of other chemicals can cause damage and loss in performance. The membranes can be damaged by oxidizing agents (e.g. free chlorine, Cl2,

ozone O3). In the sea water these contents are normally neutralized by other existing organic

substances. Oxidizing agents are sometimes used in sea water pipe systems, to avoid fouling and kill bacterium’s.

Cleaner Application

Type AA For organic sedimentation and fouling Type C To remove iron fouling.

For normal cleaning cleaner “AA” would be used.

It is recommended that “C” is used every 4 months to remove iron deposits. These would come from the sea water and also from pipe lines, suction chest and vessels hull.

If the type of deposits / fouling is not known, all cleaners C and AA should be used consecutively. Run the unit for a minimum of 3 hours between cleanings to check results.

Maximum concentration of cleaner: 5 liters of cleaner per 100 liters of water (which corresponds to 5 liters of cleaner per cleaning cycle for this unit).

CAUTION:

F

NEVER MIX DIFFERENT CLEANERS!

If done, this will only neutralize the cleaning solution and the cleaning results will be minimal. This can also damage the membrane surfaces.

(32)

F

Never pass any external water (e.g. distilled, chlorinated or de-ionized water) into the RO unit. This would cause damage to the membranes by osmosis.

F

The feed water temperature should not exceed 30°C.

F

When using 2 cleaners, to be fully effective they must be used in the following

sequence:

1st Cleaner “C” (acidic cleaner). 2nd Cleaner “AA” (alkaline cleaner).

Acidic cleaner should always be used before the alkaline cleaner. This removes the deposits nearest the membrane surface making it easier for the alkaline cleaner to remove the organic deposits.

F

Never disassemble the membrane modules for cleaning the membrane cushions

by hand or other soft equipment which will in any way affect the membrane layer

surface and the membrane material will lose its salt rejection ability.

STARTING THE CLEANING PROCESS

The cleaning can only be initiated from normal operating mode.

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Step

Lamp signal

1 Close valve VK111. - To stop cleaning tank draining

l

_¡¡¡¡

(CIRCUIT CLEANING).

- Magnetic valve VE1801 switches over and allows the permeate to be delivered into tank B111, until level switch LS1113

is actuated.

?

ll

¡¡

- Motor control valve VS160 runs open.

- Operating pressure drops.

- Switch WS161 is made, when VS160 has completely opened.

(33)

3 Set valves for Circuit Cleaning: (for closed circuit operation)

VK121 VK132 VK134 VK133 VK171

circuit cleaning

4 Open VK111 for a moment to get space for cleaner.

Put injector hose into the can with 7.5 liters of cleaner and open valve V111 to allow the cleaner to be sucked in. (Make sure only 7.5 liters of cleaner are sucked in.)

- Cleaning agent

_¡¡

¡

?

¡¡

CAUTION:

(34)

RO CLEANER AA

a.) Safety marks for the employer

Sodium hydroxide solution, 2-5 %

Hazards for human health and the environment

Breathing in and swallowing may result in health damage. Causes burns. Can cause bronchitis.

Add to water when diluting, never the other way round. Reacts with acids under the formation of heat, risk of splashing! Forms hazardous vapours with ammonium compounds and light metals (hydrogen – Danger of Explosion!).

Hazardous to water - avoid ingress into the ground, water and sewage!

Protective measures and behaviour rules

Work with good ventilation! Open seals cautiously! Do not leave vessels open! Limit stored quantities to one shift requirement! Avoid contact with eyes, skin and clothing!

Preventive skin protection necessary. Remove product residues from the hands immediately! Thoroughly clean hands after completing work and before every work break! Avoid splashes! Use skin care agent! Immediately change wetted clothing! Change clothing after completing work! Store street clothing separately from work clothing! Observe restrictions on activity!

Eye protection: Full protection goggles! If there is a risk of being sprayed: wear a face guard as well as

eye shields.

Hand protection: Gloves made of: Natural rubber, Polychloroprene, Nitrile rubber, Butyl rubber,

Flourinated rubber It is advisable to wear cotton gloves underneath protective gloves.

Breathing protection: particulate filter. P2 (white)

Skin protection: Use skin protection ointment containing grease for all uncovered parts of the body.:

Body protection: Alkali-resistant protective clothing! When diluting or filling: plastic apron!

Behaviour in danger situations

Collect and dispose of with absorbent non-combustible material (e.g. kieselguhr, sand)! Caution! Spilt solution presents risk of slipping (by iwater contact)!

Product is not combustible. Only fight fires with breathing apparatus independent of ambient air and Responsible

physician or clinic: Accident phone:

First Aid

During all First Aid assistance: protect yourself and immediately inform a doctor. After eye contact: Rinse for 10 minutes with water or with eye -wash solution.

After skin contact: Take off soiled clothing immediately. Clean with abundant amounts of water and

soap. Rinse with water for 15 minutes after burns.

After breathing in: Fresh air. Keep airways clear: remove false teeth, vomit etc.. If breathing or

heartbeat stops: immediately apply artificial respiration and heart massage.

After swallowing: No domestic agents. Do not cause vomiting. If conscious, see that plenty of water is

drunk a little at a time.

First Aid specialist:

Proper disposal

Do not pour into the sewage or a refuse bin! For disposal, collect in:

_____________________________ Signature of the employer

(35)

RO CLEANER C

a.) Safety marks for the employee

Citric acid, 10-30 %

Hazards for human health and the environment

Breathing in, swallowing or absorption through the skin may result in health dam age. Causes burns. Temporary complaints (cough) are possible. Can cause laboured breathing, eye damage.

Add to water when diluting, never the other way round. Reacts with alkalis under the formation of heat, risk of splashing! Hazardous to water - avoid ingress into the ground, water and sewage!

Protective measures and behaviour rules

Ensure a fresh air supply when working! In the event of vapours, work only with exhaust ventilation! Keep away from ignition sources! Do not smoke! No naked lights! Do not leave vessels open! Avoid splashes! Limit stored quantities to one shift requirement! Avoid contact with eyes, skin and clothing! Preventive skin protection necessary. Use skin care agent!

Thoroughly clean hands after completing work and before every work break! Store street clothing separately from work clothing! Immediately change wetted clothing! Observe restrictions on activity!

Eye protection: Full protection goggles! Hand protection: Gloves made of: Butyl rubber

It is advisable to wear cotton gloves underneath protective gloves.

Breathing protection: partikular filter P2 (withe)

Body protection: When diluting or filling: plastic apron! Spray processes: protection suits!

Behaviour in danger situations

Remove only after applying personal safety equipment! Clean objects and flooring which have become wetted or soiled immediately with plenty of water! Collect and dispose of with acid-binding material (e.g. limestone meal) and rinse remainders away with water!

Product is combustible, suitable extinguishing agents: water in a jet, carbon dioxide, extinguishing powder, foam! In the event of a fire in the environment, cool the receptacle with sprayed water! Explosive mixtures can be generated if strongly heated!

Responsible physician or clinic: Accident phone:

First Aid

After skin contact: Take off soiled clothing immediately. Rinse with water for 15 minutes after burns. After breathing in: Fresh air. Keep airways clear: remove false teeth, vomit etc.. If breathing or

heartbeat s tops: immediately apply artificial respiration and heart massage.

After swallowing: Do not cause vomiting. If conscious, see that plenty of water is drunk a little at a time.

(36)

1st Sequence after pressing of CLEAN button. Solenoid Valves VE1801/2 change over to fill tank B111 with

permeate.

(37)

(38)

(39)

2.7 Preservation

To prevent fouling during a stand-still of more than 10 days, the unit must be preserved.

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Step

Lamp signal

1 Close valve VK111 To stop cleaning tank draining

l

_¡¡¡¡

2 Press lamp button 3 (CIRCUIT

CLEANING).

- Solenoid valves VE1801/2 switch over

and send permeate to tank B111.

?

ll

¡¡

- Tank full level switch LS1113 activated

- Motor control valve VS160 runs open. - Operating pressure drops.

- Switch WS161 is made, when VS160 has completely opened.

- Pumps PK130 and PP160 are stopped.

_¡¡

_?

_¡¡

3 Set valves for Preservation: (for closed circuit operation)

VK121 VK132 VK134 VK133 VK171

circuit cleaning

4 Open VK111 for a moment to get space for biocide.

Put injector hose into the can with 5 liters of biocide (ROCIDE) and open valve V111 to allow the biocide to be sucked in. (Make sure only 5 liters of biocide are sucked in.)

- Preserve agent

_¡¡

_?

_¡¡

5 Press lamp button 1 (START). - Pumps PK130 and PP160 start.

_¡¡

l

_¡¡

Close V111 when container is

(40)

Note: A sufficient circulation of the preserve solution has already been reached after 30 min. , the process can now be aborted:

6 Press lamp button 2 (STOP). 7 Open VK111 to empty tank

B111.

Preserve solution passes through the discharge line.

8 Turn off master-switch.

¡¡¡¡¡

For the first start after Preservation the unit is programmed to rinse with raw water. First the plant is flushed for 5 minutes without pressure increasing, then for another 5 minutes under pressure. During this time the permeate produced is not supplied to the fresh water storage, this is to avoid the possibility of any chemicals being in the permeate.

?

¡

?

¡¡

CAUTION:

F

After every cleaning cycle the cartridge filter elements must be replaced.

(41)

RO Membrane Biocide (ROCIDE)

a.) Safety marks for the employee

Sodiumbisulfit

Hazards for human health and the environment

Breathing in and swallowing may result in health damage. Irritating (respiratory tract, eyes, skin, organs of digestion). Eye damage possible.

Hazardous to water - avoid ingress into the ground, water and sewage!

Protective measures and behaviour rules

Avoid dust development! Avoid contact with eyes, skin and clothing!

Thoroughly clean hands after completing work and before every work break! Use skin care agent! Immediately change wetted clothing!

Eye protection: Full protection goggles!

Hand protection: Gloves made of: Natural rubber, Polychloroprene, Nitrile rubber, Butyl rubber,

Flourinated rubber

It is advisable to wear cotton gloves underneath protective gloves.

Breathing protection: particulate filter. P2 (white)

Behaviour in danger situations

Collect and dispose of, avoiding dust in the process! Product is not combustible.

In the event of a fire in the environment, cool the receptacle with sprayed water! Hazardous vapours are produced under the influence of heat!

Responsible physician or clinic: Accident phone:

First Aid

After skin contact: Take off soiled clothing immediately. Clean with abundant amounts of water. After breathing in: Fresh air. Keep airways clear: remove false teeth, vomit etc..

After swallowing: Do not cause vomiting. If conscious, see that plenty of water is drunk a little at a time.

No domestic agents.

First Aid specialist:

(42)

1st Sequence after pressing of CLEAN button. Solenoid Valves VE1801/2 change over to fill tank B111 with

permeate.

(43)

(44)

(45)

2.8 Disinfection

If the permeate should be found contaminated of bacteriums, or generally after a longer stand-still without a prior preservation), a disinfection should be carried out.

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Step

Lamp signal

Unit is running in normal operating mode.

l

_¡¡¡¡

1 (to stop draining of cleaning tank B111)

2 Press lamp button 3 (CIRCUIT CLEANING).

Solenoid valves VE1801/2 switch over and

send permeate to tank B111.

?

ll

¡¡

Tank full level switch LS1113 activated

Motor control valve VS160 runs open to reduce operating pressure.

Switch WS161 is made, when VS160 has completely opened.

Pumps PK130 and PP160 are stopped.

_¡¡

_?

_¡¡

3 Set valves for Disinfection: For closed circuit operation

VK121 VK132 VK134 VK133 VK171

circuit cleaning

4 Open VK111 for a moment to get space for biocide.

Put injector hose into the can with 5 liters of biocide (ROCIDE) and open valve V111 to allow the biocide to be sucked in. (Make sure only 5 liters of biocide are sucked in.)

- Disinfect agent

_¡¡

_?

_¡¡

5 Press lamp button 1 (START). Close V111 when container is

Pumps PK130 and PP160 start. Membrane

(46)

For re-start:

8 After approx. 10 hours turn valves back to Normal Operation:

VK121 VK132 VK134 VK133 VK171

normal operation

9 Press lamp button 1 (START).

For the first start after disinfection the unit is programmed to rinse with raw water. First the plant is flushed for 5 minutes without pressure increasing, then for another 5 minutes under pressure. During this time the permeate produced is not supplied to the fresh water storage, this is to avoid the possibility of any chemicals being in the permeate.

?

¡

?

¡¡

CAUTION:

F

After every cleaning cycle the cartridge filter elements must be replaced.

(47)

3) FAULT INDICATION & FINDING

3.1 Error Codes, Implication and Faults

Fault conditions are indicated by lamp buttons 2 to 5 (lamp button 1 is off). A plate describing all fault displays is located on the front of the machine.

Lamp signals :

l

lamp on

?

lamp flashing

¡

lamp off

Lamp signal Device Meaning Possible causes

LAMP SIGNALS

I Electric motor load too high

- Circuit-breaker not properly adjusted - connection to processor defective - circuit-breaker defective

motor malfunctioning due to... - damage to bearings

- short circuit

- ambient temperature too high - insufficient cooling

- voltage or frequency wrong - phase broken

¡

¡¡

l

VS160 Motor control valve closed during operation

- Pipe damaged in high-pressure section - to high resistance in VS160, valve gland packing too tight

- corrosion, damage spindle/seat in VS160 - limit switch WS162 defective

(48)

¡

l

¡

l

PI160 PT160

Over pressure in PT module - PT160 does not stop pressure rise - VS160 does not open

- relay output to VS160 defective - set value at PT160 wrong - PT160 damaged

- connection to processor defective

¡

ll

l

PS170 Over pressure in concentrate line - Discharge line valves not open

- VK171 in wrong position during operation - PS170 defective

¡

lll

l

CS180 Permeate conductivity too high

- Module dirty

(circuit cleaning required!) - torque on module not correct - sealing or membrane in module damaged

- operating pressure too low

- feed water conductivity extremely high - feed water temperature above 35°C - magnetic switch on CIT180 defective - CIT180 not properly adjusted

LAMP SIGNALS

l

¡

l

?

FT180 Permeate flow rate too high - PT Module malfunction due to internal leakages (sealing or membrane damaged)

- floating indicator jammed or damaged (corrosion)

- operating pressure too high - low salinity feed water

¡

ll

?

RF001 (Reserved)

¡

lll

?

LS1113 Max. filling time B111 exceeded - too long filling time B111 - drain valve VK111 open - LS1113 defective

(49)

3.2 Faults without Lamp Indication

Lamp signal Device Meaning Possible causes

FAILURES WITHOUT FAU LT INDICATION

Plant cannot be started - Check energy supply and fuses - processor out of order

High-pressure generation failed - set value on PT160 wrong - permeate flow rate too high

- no signal from PT160 to processor, e.g. due to defective cable

Excessive pressure fluctuation during operation

- pulsation damper gas pressure wrong. Correct pressure (if possible) or replace pulsation damper

- valves in HP pump worn or damaged PP160 valves malfunctioning - normal wear

- particles between valve plate and valve seat. Dismantle valve and check. Replace, if necessary

(50)

4 ) MAINTENANCE, CLEANING &

CALIBRATION

In order to maximize availability the unit must be maintained regularly. Checks and maintenance works should be carried out according to the tables below. Detailed instructions, as far as necessary, can be found in the following chapters.

The check list at the end of this manual should be filled in daily. This assists to detect failures sooner and easier.

4.1 Schedule for Checks & Maintenance Works

REGULAR CHECKS

Frequency Action

daily - visually inspect all sections for leakages - check if motors or pumps make unusual noises

- check oil levels (pump motors and compressors, if installed) - check pressure losses across cartridge filters and modules - fill in log sheet

monthly - check calibration of conductivity meters by comparing with readings taken with a manual measurement

- check and update stock of spares and consumables - visually check all safety devices, such as overfill couplings

half-yearly - check contactors for lose screws or wires

(51)

MAINTENANCE REQUIREMENTS OF UNIT AND COMPONENTS

Device Designation on P&I diagram

Required action Recommended frequency

Chapter

Electric motors (for plunger pump PP160)

replace bearings after approx. 20,000 operating hours

4.4

Cartridge filter FC140 replace filter elements as required 4.9 PT module FM160 replace mem branes (only if necessary) 4.11

circuit cleaning every 500 operating hours or earlier, if required

2.5

check torque 150 hours after commissioning, then monthly

4.11

Plunger pump PP160 check plungers, pumping section and crankshaft section

every 3,000 operating hours

4.8

check valves and seals, replace as necessary

every 3,000 operating hours

4.8

check belt tension weekly check oil level, top up if

necessary

weekly 4.8

replace oil filling 50 hours after first commissioning, then every 750 operating hours or monthly 4.8 Pulsation damper SP160 replace if necessary 4.13

(52)

4.2 PLC

This component can only be serviced by a ROCHEM engineer and the following is given for

emergency use only except that the battery must be changed every 24 months. The inside door

of the control panel should have a sticker giving the date of last battery change. The battery is

Part No. 20417, it is a ½ AA 2.6 volt Lithium battery.

Modicon TSX Micro Processor

Analogue Converter Function display Digital input card 1/2

24V Input. Battery Compartment, Digital output

Card 4

Battery Changing

The power supply must be on before removal of the battery. Photographs are taken looking up and

under the battery compartment. 1 – Press in and down to release the Battery compartment.

2 – Battery compartment open. 3 – Remove old battery and fit new

Battery, ensure that the polarities are correct.

Close Battery compartment.

+

_

(53)

The instructions given on the next two pages are for basic information only.

ROCHEM MUST be consulted before any of the following replacements or

removals are made.

Analogue Converter

The analogue converter changes the 0 - 20ma inputs to 0 – 10VDC inputs. Should

this Converter fail and in an emergency have to be replaced by Ships Personnel the following

procedure given below must be carried out:

Power Supply MUST be switched off when carrying Out This Operation.

Removal of Analogue Converter

1 – Remove Multi-pin Plug with screwdriver.

2 – Plug removed.

3 – With screwdriver loosen the 2 securing screws.

4 – Remove the converter.

Fitting of New Analogue Converter

The new Analogue Converter MUST have all switch setting made

Before fitting. Switch sets C1, C2, C3 and C4 to be set.

All switches to be set as shown below.

C1 Switches set

at 0

C2 Switches set at 1

C3 Switches set at 0

C4 Switches set at 0

A – After setting all switches refit as in

photo 4.

B – Secure the Analogue Converter with

the 2 screws shown in photo 3.

C – Fit the Multi-pin plug and secure with

the 2 screws. Photos 2 and 1.

(54)

Processor Card Replacement

The Modicon TSX Micro Processor is fitted with

2 sizes of cards.

1 – 1 off Large Type: TSX DEZ32D2

2 – 1 off Small Type: TSX DSZ08R5

The following information on card removal

and replacement is again for emergency use.

1 2

Removal is shown for Type DEZ32D2 card, the process of removing Type DSZ08R5 cards is

the same. Do not remove any wires from the Terminal Blocks.

1 – Remove top screw. 2 – Remove bottom screw 3 – Lift off terminal block

4 – Pull up lever card 5 – Lift out card carefully 6 – Type DEZ32D2

7 – Re-fit new card block 8 – Push down securing lever 9 – Re-fit terminal

10 – Secure bottom screw.

11 – Secure top screw

(55)

Processor Function Display

BASE EXT. WRD. Diag. Diagnostic Run LED LED LED LED Button LED

TER. LED I/O LED ERR.LED BAT.LED Input Output Signals Signals

Descriptive Function Of Parts Shown Above

ITEM

Function

Input Signals Card 1, Digital Input signals.

Output Signals Cards 2 Digital Output signals.

BASE LED Alight when power is on.

EXT. LED Not used.

WRD. LED Not used.

DIAG. LED Not used.

TER. LED Communicating signal between unit and programming PC .

I/O LED Analogue error.

ERR. LED Corrupted program.

BAT. LED Battery requires replacement.

RUN. LED Alight when unit is running

DIAG. Button Do not touch this button only for programming use.

LED Alight

LED Flickering

LED Flashing

(56)

4.3 Contactors

Maintenance requires qualified personnel “ ACCESS ONLY BY ELECTRICIAN ”

The control cabinet contains the PLC unit and all wiring and electrical components.

Due to thermal load upon the contactors, the screws that tighten the wires could become loose after some time.

Step

No. Action

1 Turn off master-switch.

2 Check, if necessary re-tighten, screws L1, L2, L3 and T1, T2, T3 with a suitable screwdriver.

(57)

4.4 Electric Motor

Art. 11280

After about 20,000 operating hours, but no later than after 4 years, the roller-bearings should be checked and, if necessary, replaced. The type of bearings fitted do not allow for cleaning or re-greasing.

1 stator feet 2 rotor

3 end shield drive end 4 flanged end shield drive end 5 end-shield, non-drive end 6 V-ring drive end

7 bearing, outer cap 8 grease thrower 9 roller-bearing DIN 625

10 bearing, inner cap 11 V-ring non-drive end 12 bearing, outer cap 13 grease thrower 14 roller-bearing DIN 625

15 bearing, inner cap 16 external fan

17/18 external fan sing (sheet steel) 19 terminal board (according to DIN) 20 terminal plate with insulators

21 protective cable bushing for flameproof motor (stud terminal)

22 terminal clamp for ex motors 23 gland cover

24 terminal box

25 terminal box, bottom part 26 terminal box lid

27 entry section (A or B)

28 single-entry sealing chamber (E) 29 double-entry sealing chamber (F) 30 compression gland

(58)

4.5 Pressure Switch

Art. 12218

The pressure switches are fitted for safe operation of the unit, to avoid any unnecessary damage. They will stop the unit when certain pre determined pressures are not prevailing. These are fitted within the system at critical locations.

Electrically connected as an opener or as a closer.

The switching points of the pressure switches should regularly be checked and re-adjusted, if necessary.

Pressure switch Function Switching value Connection

PS150 protects pump PP160 from cavitation 0,5bar closer PS170 protects concentrate pipe system from

over pressure

6 bar opener

PS180 protects permeate pipe system from over pressure

3 bar opener

Adjusting the Switching Value:

1 stress relief device

2 adjusting screw for scale

3 red pointer for upper pressure

4 green pointer for lower pressure

5 adjusting screw for green pointer

Step

No. Action

1 Remove cover from pressure switch.

2 By turning screw 2 the scale is moved up or down. This sets the switching value. 3 Adjust screw 5 in such a way that the green pointer is level with the red pointer.

(59)

4.6 Pressure Transmitter

Art. 20480

The pressure transmitter measures the operating pressure before the

module and passes it as a 4 to 20 mA signal on to the PLC. At a

pressure of 0 bar it will give a 4 mA signal, at 100 bar a 20 mA signal.

Between these limits pressures and output signals are proportional.

If the transmitter does not function as described above, it is defective

and needs replacement.

(60)

4.7 Conductivity Meter

(Part No.: 20321/20322/20686)

Meters: CIS 180

Type LF 1010-3-2R-5-00µs/cm

Conductivity Meter

Part No.20321

Conductivity Probe

Part No.20322

Sensor Cable

Part No.20686

Meter Features

Protection IP65. 14.2mm LED display. Indicating range 2000(0) digit.

Measuring range programmable from 0…2.000µS/cm up to 0…2000mS/cm.

This meter has been designed for the measurement of conductivity, as a degree of the purity

or concentration of a liquid. In connection with 4-electrode conductivity cells a high accuracy

and intensitivity of contaminations can be achieved..

Sensor Cable

8 pole stainless steel 1.4571socket, PVC cable, IP67, 2m long.

Conductivity Probe

4- Electrode Conductivity cell. Probe includes cap nut (G1½").

(61)

(62)

Controls and Indicators

Description

Operating of the device is arranged in 2 levels. The requested parameter can be called by button. Selection within a parameter or entering data, use buttons and . Parameters are stored zero-voltage safe in the EEPROM.

After switching on the supply voltage, the device initializes itself. The display shows the message I n i t . After the initializing procedure the device is working in the Working level. Set points of the alarm outputs can be pre-selected if available.

Activating the button for more than 2 seconds, the program is jumping into the Configuration level. Now all the parameters defining the function of the device can be programmed.

After finishing the configuration or when longer than 2 minutes no button was pushed, the program jumps back to the working level. Leaving the configuration level is possible at any time when pushing the button for 2 seconds.

Error codes:

Display If the input signal is more than 3% outside of the programmed measurement range the flashes A/D- converter is over driven and the display flashes with appr. 1Hz

E r r o r1 EEPROM test. Reading this message, a program error has been occurred. When pushing

the button a copy of the EEPROM will be reloaded and the device will work with the factory settings. If this copy does not work, please ship the device to factory for repair service.

Lo c Program lockout. See configuration page.

Start-up note: