Rothenberger ROCAL PRO 2 User manual

ROCAL PRO 2
ROCAL
PRO 2
EN Instructions for use
www.rothenberger.com
ROCAL 20
ROMATIC 20
ROCAL 20 ROMATIC 20
www.rothenberger.com
DE Bedienungsanleitung
EN Instructions for use
FR Instruction d’utilisation
ES Instrucciones de uso
IT Istruzioni d’uso
NL Gebruiksaanwijzing
PT Instruções de serviço
PL Instrukcja obslugi
CZ Návodkpoužívání
TR Kullanim kilavuzu
HU Kezelési útmutató
RO Manualului de utilizare
ET Kasutusjuhend läbi
LT Naudojimoinstrukciją
LV Lietošanaspamācība
RU Инструкцияпоиспользованию

2
ENGLISH
Dear Customer, thank you for choosing a Rothenberger descaling –
flushing pump.
MANUAL
This manual is a safe guide for the use of the pump. Please read it
carefully in full before use.
This manual contains important information for the correct operation and
use of the equipment.
Rothenberger reserve the right to introduce any future changes without
notice or replacement.
PRELIMINARY INSPECTION
Upon receipt of the pump, remove from the carton and check it is in
perfect condition. Also check that the data on the info plate is correct. Any
abnomality must be advised immediately.
PRECAUTIONS
Only use Rothenberger chemicals in order to ensure good performance
and avoid damaging the equipments.
Once the lifetime of the pump has expired, do not dispose of it
with household waste. The pump must be recycled in
authorized centres and can be treated as a household
appliance.
During handling lift the pump and do not drag it to avoid damage to the
tank.
Temperature of the descaling solution must never exceed 50 °C.
Flexible hoses and fittings can damage in time, check the seals whenever
using the pump, as indicated in the pump preparation instructions.
SAFETY INSTRUCTIONS
- Avoid using the pump in places where there are liquids, gases,
flammable powders or with risk of explosion.
- Before plugging in the pump, make sure the main switch on the
machine is off.
- Only use CE-marked outlets.
- Use (CE) approved extensions, only if necessary.
- Do not use plug adapters. Do not carry out any modifications to the
plug nor to the electrical cable.
- Pump shall always be kept in perfect efficiency.
- During maintenance operations, check the switch is off and the plug
is not connected.
- Maintenance operations must be carried out by the authorized
Rothenberger Technician..
- Only use Rothenberger original spare parts.
- Do not carry out any modifications to the pump if not authorized by
Rothenberger Technical Department (ask for written authorization).
- Keep children and unauthorized persons away from the pump.
- Keep the pump out of reach of children and unauthorized persons.
- Do not use the pump if tired or under the effect of alcohol, medicines
or drugs.
- When using the pump, wear overalls, do not wear jewellery, keep hair
away from the pump.
- When handling chemicals, take care.
- Always use Personal Protection Equipment (PPE).
- Equipment can be used by children under 8 years and by people with
reduced physical, mental, sensorial capacity, or by people without
experience or the necessary know-how, provided they are supervised
or have received received adequate training, which should include the
correct use of the equipment and the risks that may arise from its
use.
- Please ensure that children do not play with the appliance.
- Cleaning and maintenance are intended to be performed by the user
and must not be carried out by children without supervision.
- If power cord is damaged, it must be replaced by the manufacturer or
by Rothenberger Service Technician or a similarly qualified person, in
order to avoid any hazard.”
CONTENTS
1 - INTRODUCTION....................................................................................p. 2
2 - REGULATIONS – CE MARK................................................................p. 2
3 - DESCRIPTION........................................................................................p. 3
4 - TECHNICAL FEATURES ......................................................................p. 3
5 - USE..........................................................................................................p. 3
6 - CHEMICALS...........................................................................................p. 5
7 - DIRECTIONS FOR DISPOSAL.............................................................p. 5
8 - CUSTOMER SERVICES........................................................................p. 5
1 - INTRODUCTION
With time and, above all, temperature increase, magnesium and calcium
salts contained in water form microcrystals and settle on metallic
surfaces of pipes, plant coils and heat exchangers, thus reducing flow rate
and thermal efficiency.
To remove scale deposits it is necessary to flush the inside the pipes, by
using a Rothenberger descaling pumps, the chemicals which react with
scale, make it soluble and thus removed. Rothenberger produces a wide
range of products for descaling systems and heat exchangers etc.
All products are made from high quality base materials in order to get
2 - REGULATIONS – CE MARK
Declaration of Conformity
The pumps are in conformity with the following European Directives,
Laws and Regulations:
Low Voltage Directive:
73/23/EEC
93/68/EEC
Electromagnetic Compatibility Directive:
89/336/EEC
92/31/EEC
93/68/EEC
93/97/EEC
Directives RoHS and WEEE:
02/98/EEC
02/96/EEC
03/108/EEC
QUALITY
The pump is built with high-quality acid resistant materials and submitted
to severe operating tests.
Follow these instructions to avoid any operating and servicing problems.

3
ENGLISH
3 - DESCRIPTION
Vertical axis pump with tank and on-off valves for cleaning and flushing
small systems or parts of big systems by circulating specific non-acid
flushing chemicals and/or acid descaling solutions.
Exclusive pump design with tank. Highly portable format, with handle and
wheels for easy transportation.
Thanks to the automatic flow reverser function (Rothenberger patent), it
attacks scale in both directions, thus making descaling more effective and
fast (as the chemical dissolving action is combined with the removal of
flakes of scale, which is aided by the two way flow), even when pipes and
exchangers are almost totally blocked.
Deposits which can be removed with the pump ROCAL PRO 2:
- scale deposits.
- calcium and silica deposits.
- iron and/or manganese oxides.
- iron bacteria and/or sulfate-reducing bacteria .
- organic substances and/or mucilages and algae.
4 - TECHNICAL FEATURES
Vertical axis pump
Motor: Hp 0,75
Power supply: 230 V - 50 Hz
Degree of protection: IP 54
Max. temperature: 50° C
Flow rate: 102 l/min.
Head: 18 m
Connections: 1” F
Tank capacity: 40 l
Dimensions (LxHxZ): 40 x 95 x 70 cm
Weight: 19 Kg
*BOILER FLUSHING
Please consult boiler manufacturer prior to flushing,regarding warranties
and suitability of use.
5 - USE
DESCALING WITH FLOW REVERSER
For descaling boilers and heat exchangers.
Fill the tank with the correct volume of
descaling chemical according to the size and
type of system, and enough water to ensure
that the liquid level is between the minimum
“MIN” and maximum “MAX” level.
TEMPERATURE OF THE DESCALING
SOLUTION MUST NEVER EXCEED 50 °C.
Connect the outer ends of the flexible
reinforced hoses to the equipment to be
descaled.
Connect the power cable to a single-phase
230 V - 50 Hz power supply.
During operation, the tank cap should remain
open to allow for the venting of the fumes
produced during descaling. Check that the
foam level does not exceed the maximum filling level.
Set the 2 three-way valves as shown in the figure below, close the clean
water inlet tap and switch on the pump.
Rotate the flow reverser lever right and left regularly to aid descaling and
make flushing more effective.
When water colour starts changing, immediately refill, as the solution is
exhausted.
Scale removal can be considered complete when bubbles no longer form
in the return pipe and the solution is still acidic.
After descaling flush the system with the product NEUTRALIZING for
removing residual acidity, once the pump has been emptied of the
product.
Important: Do not leave the descaling solution inside the tank for any
reason.
5.1 POWER FLUSHING
Pre-flushing with water
Pump is suitable for power flushing and descaling boilers*, heat
exchangers as well as radiator, underfloor and solar heating systems.
To carry out the pre-flushing with water (and then the power flushing),
operate as follows:
1) Connect the ends of the flexible hoses to the system to be flushed.
2) Connect the overflow hose to a suitable drain.
3) Connect the power supply cable to a single-phase 230 V / 50 Hz
socket.
4) Open the tank cap to visually check water level in the tank.
5) Set the valves and flow reverser as per Figure 1, open the clean water
inlet tap, open the dump and switch on the pump.
Clockwise
circulation
Counterclockwise
circulation
Overflow
Three-way
valve
Flow
reverser
lever
Dump Hose
Water
Inlet Hose
Supply &
Return Hose

4
ENGLISH
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
Notice: The direction of the longer part of the valve knob must be as
shown in Fig. 1.
6) Circulate water in the system for approximately 2 minutes to remove
the rough deposits present in the pipes.
7) Set the valves and reverse the flow.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
8) Switch on the pump and circulate water in the system for approximately
2 minutes to remove the rough deposits present in the pipes.
9) Repeat the pre-flushing to right and left until dump water is free from
rough deposits.
Power flushing with chemical (ROCLEAN RESTORER)
To power flush the system with the chemical (Long Life 800), operate as
follows:
1) Make sure the ends of the flexible hoses are connected to the system
to be power flushed.
2) Make sure that the overflow hose is connected to a suitable drain.
3) Make sure that the power supply cable is connected to a single-phase
230 V / 50 Hz socket.
4) Close the mains water inlet supply tap and close the dump.
5) Make sure that the tank cap is open to visually check fluid level in the
tank.
6) Set the valves as per Figure 3 and add the chemical into the tank.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
7) Circulate the chemical solution in the system circuit for approximately
5-10 minutes.
8) After 5-10 minutes reverse the flow.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
9) Circulate the chemical in the system circuit for approximately 5-10
minutes.
10) Repeat the power flushing operations switching the flow to right and
left, until the colour of the flushing solution changes, for a minimum
working time of 2-3 hours.
Rinsing with water
To rinse with water after power flushing, operate as follows:
1) Make sure that the overflow hose is connected to a suitable drain.
2) Make sure that the power supply cable is connected to a single-phase
230 V / 50 Hz socket.
3) Make sure that the tank cap is open to visually check water level in the
tank.
4) Open the dump.
5) Set the valves as per Figure 5, open the clean water inlet tap and
switch on the pump.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
6) Circulate water in the system for some minutes to remove the
flushing residues present in the pipes.
7) Set the valves as per Figure 6 and reverse the flow.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
8) Switch on the pump and circulate water in the system for a few
minutes to remove the flushing residues present in the pipes.
9) Measure conductivity of the mains water at the inlet and dump water
at the outlet.
10) Repeat the rinsing operations until the dump water runs clear.
Chemical filling (ROCLEAN INHIBITOR)
1) Close mains water supply tap.
2) Close dump
3) Set the valves as per Figure 7.
4) Add chemical (corrosion inhibitor and/or biocide-sanitizer) into the
tank.
5) Switch on the pump for a few minutes.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7

5
ENGLISH
5.2 DESCALING
Descaling with chemicals
To carry out descaling with chemicals, operate as follows:
1) Connect the ends of the flexible hoses to the system to be descaled.
2) Connect the overflow hose to a suitable drain.
3) Connect the power supply cable to a single-phase 230 V / 50 Hz
socket.
4) Make sure the tank cap is open, to allow any fumes formed during
descaling to escape.
5) Set the valves as per Figure 3, add the chemical into the tank.
6) Circulate the chemical in the system circuit for approximately 5-10
minutes.
7) Once this time has passed, reverse the flow leaving the position of
valves as they are.
8) Should the chemical be changing its initial colour, it should be refilled
immediately as exhausted.
9) Repeat the operations until the colour of the flushing solution is
changes, for a minimum working time of 2-3 hours.
10) After descaling, open the dump to evacuate residual acid caused by
descaling and go to the next step (Neutralization after descaling).
Notice: Use descaling chemicals suitable for the system materials.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
Neutralization
To neutralize the system with NEUTRALIZING, operate as follows:
1) Make sure the tank cap is open to visually check water level in the
tank.
2) Pour a 2-3% amount of NEUTRALIZING by referring to the warnings
on the packaging and product label.
3) Set the valves and flow reverser as per Figure 5. Open the clean water
inlet tap and switch on the pump.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
4) Circulate the neutralizing solution in the system for approximately 2
minutes to neutralize residual acidity present in the equipment.
5) Once this time has passed, set the valves and flow reverser as per
Figure 6.
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply open
Dump open
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Mains water
supply closed
Dump closed
Fig.1
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
6) Circulate the neutralizing solution in the system for approximately 2
minutes to remove residual acidity present in the equipment.
7) Repeat the operations until dump water is free from any chemical
residues.
8) Dump the neutralizing solution used.
6 - CHEMICALS
6.1 - CONDITIONING CHEMICALS
Suitable for all materials
ROCLEAN INHIBITOR
Corrosion inhibitor. Non acid product to control corrosion and scale in boilers and
heating systems.
ROCLEAN RESTORER
Restorer. Flushing product to remove sludge, corrosion residues and iron
deposits built over time in heating systems. Suitable for traditional heating
systems.
7 - DIRECTIONS FOR DISPOSAL
Components of the unit are made from recyclable material
and should be put to recycled. For this purpose registered
and certified recycling companies are available. For an
environmental friendly disposal of the non-recyclable parts
(e.g. electronic waste) please contact your local waste
disposal authority.
For EU countries only:
Do not dispose electric tools with domestic waste. In accordance with the
European Directive 2012/19/EC the disposal of electrical and electronic
equipment and its implementation as national law, electric tools that
are no longer serviceable must be collected separately and utilised for
environmentally compatible recycling.
10 - CUSTOMER SERVICES
The ROTHENBERGER service locations are available to help you (see
listing in catalog or on- line) and replacement parts and service are also
available through these same service locations.
Order your accessories and spare parts from your specialist retailer or
using our service-after- sales hotline:
Phone: [phone]
Fax: [phone]
Email: [email protected]
www.rothenberger.co.uk