Zuwa DESCAL NIROSTAR 2000-A User manual

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
Operating Instructions
Antikalk Mobilcenter
ZUWA-Zumpe GmbH
Franz-Fuchs-Str. 13-17
83410 Laufen
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
QUALITY
SINCE 1946

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
2
DESCAL with NIROSTAR 2000-A
Original Operating Instructions
Content
1. Declaration of conformity ......................................................................................3
2. Introduction ...........................................................................................................3
2.1 Further applicable documents...........................................................................3
2.2 Legend ..............................................................................................................4
3. Safety....................................................................................................................4
3.1 General safety instructions................................................................................4
3.2 Safety instructions for potentially hazardous liquids..........................................6
4. Technical Data ......................................................................................................7
5. Transportation and unpacking ..............................................................................7
6. Mounting and commissioning ...............................................................................8
6.1 Cleaning the filter during application .................................................................9
7. End of operation..................................................................................................10
8. Warehousing.......................................................................................................11
9. Maintenance .......................................................................................................11
9.1 Connections ....................................................................................................11
9.2 Cleaning the filter ............................................................................................11
9.3 Disassembling the pump .................................................................................11
9.4 Replacing components....................................................................................12
9.5 Assembling the pump......................................................................................12
10. Troubleshooting ..................................................................................................13
11. Accessories ........................................................................................................14

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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1. Declaration of conformity
The product complies with the requirements of the applicable european
directives. The conformity was declared. The documents to which the
declaration relates and the original declaration of conformity are available
at the manufacturer.
2. Introduction
Intended use
DESCAL is designed for descaling heat exchangers, hot water tanks, boilers and water
cooled industrial machinery.
The following descaling agents were tested with the device and are approved for using
 Manufacturer: SANIT – product name: KalkLöser and CitroPlus KalkLöser
 Manufacturer: SOTIN – product name: Entkalker 212, 212 W and 212 TW
ZUIWA can not be held liable for damages on the device caused by the use of agents
not listed herein.
Notes on the documentation
This manual provides important information for a safe and correct operation of the
DESCAL NIROSTAR 2000-A.
The manual is designed for qualified personnel who are trained and specialised in
installing heating systems. Service and maintenance works must only be carried out by
approved specialists.
Subject to technical modifications
The continuous development and improvement of our products may cause minor
modifications of technical data and illustrations.
2.1 Further applicable documents
 Parts list

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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2.2 Legend
Immediate danger of death and severe injury
Danger of death from electric shock
Danger of scald burn
Danger of chemical burn
Danger of environmental and material damage
Information, note
3. Safety
3.1 General safety instructions
Store these instructions in such a way that they are accessible at all times for
operating personnel!
In addition to these operating instructions the following documents of related
components and of the pumping media should be applicated:
technical specifications
material safety data sheets
operating instructions
Danger
Danger of death due to electric shock
> Prior to work on the pump, always disconnect the drive from the power
supply.
The manufacturer shall not be held liable for damage resulting from non-
adherence to the operating instructions.

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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Danger
Danger of death due to explosion
> Do not pump any liquids with a flash point of less than 55 °C.
> Do not pump petrol or solvents.
Warning
Danger of burn due to hot motor casing
> Do not block neither suction nor pressure hose more than 1 minute to
avoid overheating of the motor.
Warning
Danger of chemical burn at contact with descaling agent
> Wear acid proof gloves when working with descaling agent.
> Connect hose couplings tight and check for tightness regularly.
> Collect spills and dispose off in accordance with manufacturers’
instructions or local regulations

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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3.2 Safety instructions for potentially hazardous liquids
Follow the safety data sheet of the agent and the users manual
3.2.1 First Aid after contact with agent
General instructions:
Remove stained, soaked clothing. Remove affected persons from danger zone and lay
down.
After inhaling:
Care for fresh air, consult a doctor.
After skin contact:
Wash with water and soap. Consult a doctor in case of cutaneous reactions.
After eye contact:
Flush with plenty of water for 15 minutes. Medical care is obligatory.
After swallowing:
Clean mouth with plenty of water. Sip lots of water to dilute the acid. Do NOT vomit.
Call a doctor immediately!
3.2.2 Measures after accidental release of descaling agent
Personal precautions:
Care for sufficient ventilation. Avoid contact with skin or eyes. Keep away unauthorised
personnel.
Environmental protection:
Avoid agent from getting into drain systems, surface or ground water.
Decontamination/Absorption:
Use absorbing materials (acid binder). Dispose off in accordance with local and/or
governmental regulations.
Additional advise:
Neutralise large quantities with Soda.
Please see the EC safety data sheet of the agent in use with regard to
warehousing, toxicology, ecology, disposal and transport.

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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4. Technical Data
NIROSTAR 2000-A NIROSTAR 2000-A
DESCAL
for SANIT agents for SOTIN agents
Voltage 230 V 230 V
Frequency 50 Hz 50 Hz
Maximum power consumption 370 W 370 W
Maximum fluid temperature 40 °C 40 °C
Approved impeller and shaft seal NBR / EPDM VITON / VITON
Maximum operating pressure 5 bar 3 bar
Maximum flow rate
with water / heat transfer medium 30 / 27 Ltr./Min. 30 / 27 Ltr./Min.
Diameter return hose / pressure hose ½ / ½ Zoll ½ / ½ Zoll
Tank content 30 Ltr. 30 Ltr.
Motor protection class IP 55 IP 55
Dimensions (height/width/depth) 985/495/555 mm 985/495/555 mm
Weight without packaging
(empty tank) 28 kg 28 kg
5. Transportation and unpacking
> After unpacking, immediately check the filling unit for completeness and damage.
> Immediately report any transit damage to the supplying company.
> Dispose off packaging material in accordance with local regulations.

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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6. Mounting and commissioning
Warnung
Danger of chemical burn after contact with descaling agent
> Wear acid proof gloves when working with descaling agents.
Caution
Material damage due to overheating of the pump
> Never allow the pump to run dry for more than 1 minute.
1. Place the device on a flat spot to avoid the
device from tilting over.
2. Connect filling hose to pump outlet.
3. Connect return hose to tank.
4. Fill tank.
Caution: danger of chemical burn from
leaking liquid
> Do not fill the tank with more than
50% with descaling agent. The
chemical reaction between agent and
scale cause heavy foaming.
5. Open tank lid to ensure the circulation of
the air.
When working with heavily stained liquid it is recommended to hinge
additional fleece flters into the tank to protect the fine filter.
Article code fleece filter set: 132003
Article code lid complete for fleece filters: 805531

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6. Open ball valve, switch on pump and flush
the installation.
Caution:Damage due to dry run
> Monitor fluid level in the tank and, if
necessary, refill anti scale agent to
prevent air entering the solar circuit.
> Take a look at the filter inside the
vision panel for sedimentations.
In case the fine filter is clogged with
stains stop working and clean the filter
sieve as follows.
6.1 Cleaning the filter during application
Warning
Danger of chemical burn through leaking liquid
> Collect agent with an appropriate cup and refill into tank.
> Close ball valve beneath tank.
> Turn on pump for 2-3 seconds.
> Place cup beneath pressure relief valve and open the valve (see also chapter 7,
picture 1).
> Carefully unscrew the filter casing and refill the the liquid inside into tank.
> Pull off filter and clean with plenty of water.

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
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7. End of operation
After flushing:
> Turn off pump.
> Close ball valve beneath tank.
Warning
Danger of chemical burn through leaking liquid
> Collect agent in an appropriate cup and dispose off in accordance with
the prescriptions in the safety data sheet of the manufacturer.
1. Place cup with sufficient size beneath
pressure relief valve and open the valve.
By opening the drain valve at the pump
outlet you can release the pressure that is
generated between pump outlet and fittings
when flushing the pipe
2. Flush the pump with water. Close ball valve
at tank. Connect a water hose with the
rinsing device (1) and flush with working
pump thoroughly. Dispose off wash water
and leftovers of the agent in accordance
with the manufacturers instructions.
3. Unscrew filling hose and return hose from the fittings.
4. Screw open hose ends together with the provided connecting piece in order to
avoid dripping or escaping of fluid during transport.
5. Empty the tank completely. Dispose off leftovers of the agent in accordance with
the manufacturers instructions. Wash tank with clean water.
1

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
DESCAL
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8. Warehousing
> Clean pump and tank and empty completely.
> Store in a frost-free place
9. Maintenance
Gefahr
Danger of death due to electric shock
> Prior to work on the pump, always disconnect the drive from the power
supply.
9.1 Connections
> Check regularly if hose couplings are tight.
9.2 Cleaning the filter
There is a built-in fine filter on the suction side of the pump to filter out sold and welder
residues. Check the vision panel at the filter regularly and clean the filter when you see
dirt deposits on the strainer.
> Screw off the filter casing, remove the strainer and clean both with rinsing water or
compressed air.
9.3 Disassembling the pump
1. Disconnect line connections.
2. Unscrew bolts on the pump side.
3. Remove casing cover and side disc.
4. Pull casing with impeller and rear side disc off the shaft.
It is recommended to return defective components to ZUWA for repair
works.

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9.4 Replacing components
Impeller
> Push impeller out of the casing.
> Insert a new impeller. Observe direction of impeller
wings (see adjacent illustration): Impeller wings
must be bent to the opposite side of the rotating
direction.
Bush bearing
> Remove old bearing and press in the new one.
Seals
> Replace O-rings and push firmly into the recesses.
Replacing shaft gasket
> Remove retaining ring with suitable pliers.
> Push out bearing and shaft gasket.
> Push in new shaft gasket and bearing.
> Insert retaining rings.
9.5 Assembling the pump
Assembly of the pump is the reverse of disassembly – see exploded drawing.
> Connect lateral disc with hole to the rear of the casing.
> Push casing with impeller and second lateral disc onto the shaft.
> Insert and tighten bolts.
> Attach lines.
Intake Outlet

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ZUWA-Zumpe GmbH • Franz-Fuchs-Str. 13-17 • 83410 Laufen • Tel.: [phone] – 89340 • E-Mail: [email protected]
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10.Troubleshooting
Fault Possible cause Remedy
Intake line is not leaktight Seal connection or line
Impeller worn or damaged Replace impeller
Suction line or foot valve is
blocked
Clean suction line or foot
valve
Pressure line closed or
blocked
Open fittings on the pressure
side or clean pressure line
Pump does not take in
liquid
Ball valve at the tank outlet
closed or tank empty
Open ball valve or fill tank
Impeller or lateral discs are
worn
Replace impeller or lateral
discs
Filter clogged Clean filter (see chapter 9.2,
Maintenance)
Pump does not build up
pressure
Ball valve at the tank outlet
closed
Open ball valve
Liquid escapes from the
pump
Shaft gasket or O-ring is
missing or defective
Check whether part is in
place and insert or replace
defective component
Impeller blocked Fill pump with the medium to
be pumped
Impeller clogged up or
macerated
Use an impeller appropriate
to the medium
Pump does not start
Motor defective Have motor checked by
specialist personnel and
have repaired if necessary

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11. Accessories
Filter bags of nonwoven fabrics and lid with integrated hose connector
Article code fleece filter set: 132003
Article code Lid complete for filter bags: 805531
Tool for changing the impeller
Article code: 11012400
Remote control with 10 metre cable
Article code: 80283