Magnetic HWR 50 plus User manual

magnetic® heating water
regulator HWR 50/100 plus
Operating manual
magnetic®
...einfach besser
Anodenstrom

magnetic GmbH & Co. KG
Am Richtbach 5
D-74547 Untermünkheim
Tel. [phone]
Fax [phone]
[e-mail]
www.magnetic-online.de
Managing director Shareholder:
Michael Bader
VAT ID No.: DE 255 018 730
Trade Register: HRA 571362
Registered court: Stuttgart
Version 2019/10 BA HWR 50/100 plus EN

magnetic® heating water
regulator HWR 50/100 plus
Operating manual
Inhalt
1. General / Safety information
1.1 General information
1.2 Area of application
1.3 Safety information
1.4 Safety regulations
1.5 Exclusion of liability
1.6 Specific safety and handling instructions
1.7 Specific operating instructions
1.8 Conformity declaration
2. Layout of the electrochemical water treatment
2.1 Layout of the Heating Water Regulator
2.2 Estimating the system volume
2.3 Water content of buffer tanks
3. Location of installation
4. Filling water quality
4.1 Water quality for operating the HWR plus
4.2 Necessity for treating the filling water
4.3 Type of filling water treatment
4.4 Use of antifreeze agents
4.5 Influence of electrochemical water treatment on total hardness

5. Installation of the connection set / Delivery contents
6. Success monitoring
7. Maintenance
7.1 Functional check - flow rate
7.2 Functional check - Anode function
7.3 Backwashing, desludging, container cleaning
7.4 Monitoring water quality
7.5 Anode replacement
8. Troubleshooting
8.1 What you should do if...
9. Maintenance record
10. Data and dimensions

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1. General / Safety information
1.1 General information
The magnetic® Heating Water Regulator is used as a reaction vessel for the electrochemical treatment of heating water for
chemical-free operation of heating systems. The electrochemical water treatment contributes to a water quality that will ren-
der damage caused by the formation of limestone and corrosion unlikely.
The functional components are made from stainless steel, brass fittings, high potential magnesium alloy and high-quality
plastic components. The reaction vessel is made of stainless steel. Elastomers, hemp and aramid fibres (KLINGERSIL
C-4400) are used as sealing materials. High quality polyurethane foam or high quality non-woven fabrics with fire classifica-
tion B1 are used as insulation materials. The materials used comply with generally accepted engineering standards.
The instructions in this operating manual allow you to operate this system in a proper, safe and efficient manner. It is particu-
larly important to observe basic instructions for installation, operation and maintenance. Each person working with this sys-
tem must read the operating manual in its entirety, take of the instructions stated in it and apply them. Besides the operating
manual, observe current and locally applicable rules for accident prevention for safe, professional handling. In addition, the
manufacturer recommends keeping a written record on site. The form at the end of this operating manual may be used for
this purpose. This operating manual must always be available at the place of operation.
1.2 Area of application
The magnetic® Heating Water Regulator is used for the electrochemical treatment of water as part of chemical-free corro-
sion protection within closed water-bearing systems, such as heating systems. It is used to attain effective corrosion pro-
tection through ideal water quality without additional chemicals, to remove existing circulating impurities and to prevent
the formation of new corrosion products. In particular, heating water regulators are used in heating systems where there
is an increased risk of corrosion due to constant oxygenation, such as is the case for floor heating with plastic piping
which are permeable to diffusion. In addition, regulators are more commonly used in lower temperature systems (e.g. heat
pumps) or within the context of so-called “low-salt” operation of heating systems, mostly to stabilise the pH value.
Corrosion in heating systems is caused by the interaction of several factors. The magnetic® Heating Water Regulator is not
a stand-alone corrosion protection device. We see it as a measure within the overall context of the system operation. The
magnetic® regulator makes a decisive contribution to chemical-free corrosion protection due to its positive effect on the
heating water thanks to natural layer formation and passivation of the metals in the system. Its core functions are:
• Attrition of dissolved oxygen through an electrochemical reaction
• Removal of circulating air bubbles
• Increasing the pH value >8.3 through electrochemically formed hydroxide
• Removal of circulating impurities from system water

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1.3 Safety information
Please read this operating manual carefully before operating the device and follow the instructions. Please keep this operating
manual accessible at all times. Damages to persons and property resulting from not complying with this operating manual are not
covered by the Product Liability Act. The manufacturer shall not be liable for any other damages resulting from not complying with
the instructions contained in this operating manual. Safety warnings warn against risks and help to prevent damage to persons
and property. Compliance with the safety warnings included in this operating manual is absolutely necessary to ensure personal
safety. Make sure that you comply with applicable national and international safety regulations. Each operator is personally respon-
sible for complying with the applicable regulations and must endeavour to comply with the most recent regulations.
1.4 Safety regulations
The magnetic® Heating Water Regulator may only be operating by specialist personnel. Please comply with the manufacturer’s
instructions in the maintenance or replacement of consumable parts. The warranty shall be void if modifications are made to the
device. The manufacturer shall not be liable in the event of damage due to incorrect operation. In addition, this shall result in the
warranty becoming null and void. The regulator may not be operated in potentially explosive atmospheres, or underneath a naked
flame. The HWR plus may only be operated if it is in proper working condition and may only be used for the treatment of water in
closed heating and cooling circuits. The treatment of drinking water, acids, lyes, etc. is not permissable. Prior to operation, check
the system for possible damage. Ensure proper use within the stated performance range. Before carrying out repair work, it is
absolutely necessary to separate the system from the water pressure or supply network. Damaged systems should be decommis-
sioned immediately. Faulty or damaged reaction vessels should only be repaired by specialist personnel authorised by the manu-
facturer. This is in your own interest. This prevents inadequate repairs. Please pay attention to the relevant and binding standards.
1.5 Exclusion of liability
The use must be in exact accordance with the instructions provided in this manual. The manufacturer shall not be liable for
any damage, including consequential damage resulting from the incorrect installation or incorrect use of this product.
1.6 Specific safety and handling instructions
The magnetic® Heating Water Regulator is only suitable for water treatment for engineering applications.
The treated circulation water is not suitable for human consumption.
In order to prevent technical faults, it is necessary to rinse the regulator once a year using clear water, ideally with completely de-
mineralised water. In addition, in order to ensure ideal function, the high-potential magnesium anode installed in the device should
be replaced as a consumable at least every two years. If the Heating Water Regulator is operated using extremely hard water, then
the increase of the pH value will result in lime scale along with the formation of lime sludge. In such a case, the reaction vessel
should be cleaned twice a year. Heavy limescale on the interior walls of the vessel can be removed using a diluted natural acid,
e.g. citric acid. The system is not resistant against strongly concentrated cleaning products.
The system may not be opened or disassembled during operation. The reaction vessel may not be opened without prior pressure
relief. The reaction container may contain hot water. Take appropriate precautions during maintenance work and protect yourself
against burns due to high water temperatures. Protect the system against mechanical damage. Do not use near heat sources and
naked flames. The installation of all parts should be carried out according to country-specific guidelines.

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1.7 Specific operating instructions
The addition of chemical substances to the heating water may impair the function of the regulator. Therefore, do not add additio-
nal chemicals to the system during operation. Please pay attention to information on the filling water quality on the following
pages of the user manual. Do not use treated soft water as filling water in combination with a magnetic® Heating Water Regulator.
This can result in malfunction or a strongly increased pH value. In case of high total hardness or electrical conductivity of drinking
water >200 μS/cm, the filling water should always be treated by means of water demineralisation using an ion exchanger.
Check if aluminium alloy is present in the system and whether this poses a limitation on the maximum pH value. When using a
Heating Water Regulator, the pH value may increase to >9.
1.8 Conformity declaration
Regulators from magnetic® are pressurised containers which are subject to the scope of the Pressure Equipment Directive 97/23/
EC Section 3, paragraph 3. CE labelling will not be granted. Magnetic regulators are constructed and manufactured according to
good engineering practice. A leakage and original pressure inspection is carried out.
2. Layout of the electrochemical water treatment
2.1 Layout of the Heating Water Regulator
The magnetic® Heating Water Regulator 50 plus is suitable for use with systems with a volume of up to 15 m³.
The magnetic® Heating Water Regulator 100 plus is suitable for use with systems with a volume of up to 35 m³.
2.2 Estimating the system volume
In heating systems, the system volume is often unknown. The system volume can be estimated by means of the heating capacity.
For today’s heating systems, an average <20 litre contents per kW heating capacity without a buffer tank is assumed.
Based on experience, for floor heating a content of <18.5 l/kW, applies for radiators <12 l/kW and for panel radiators <8.5 l/kW all
incl. risers and content of heat generators.
For systems with older parts, please pay attention to the fact that today’s heat generators heat the same water quantity with
significantly less input. You should take 15-20% into account in the layout.
2.3 Water content of buffer tanks
Among other things, the size of the HWR is determined by the assumed oxygen intake in the entire network, in particular at screw
fittings, plastic lines, control units, etc. The volume of a steel storage tank is not taken into account, as hardly any oxygen diffusi-
on takes place here.

3. Location of installation
Main return flow system group floor heating
Preferred installation variants with several heating circuits
dueto proximity to source of oxygen intake.
System group flow-flow
Bypass installation using the circulating pump.
System group flow-return flow
Classic bypass installation using the main circulating pump.
The advantage is that the treated water ends up directly in
other system parts too. Due to increasing the return flow
temperature, it is not suitable for condensing boiler techno-
logy.
System group return flow-return flow
Tried and trusted bypass installation with dedicated feed
pump which is synchronised with the main circulating
pump. This is preferred for mixed installations of radiators
and floor heating circuits due to the proximity to the source
of the oxygen intake
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magnetic®
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Bypass main return flow - main return flow
IInstallation option for systems with circulating impurities
and high oxygen intake in several floor heating circuits.
Bypass buffer
Installation directly at the buffer tank. This installation
option allows the effective treatment of the largest possible
volume of water and prevents impurities being deposited in
the buffer tank.
Bypass main return flow before buffer
Installation in main return flow before the buffer
tanks, if oxygenation is likely or circulating impu-
rities are present.
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Notes on bypass installation
The HWR must be installed in a bypass, which is why one
should ideally pay attention to the following points:
• Keep the supply lines as short as possible
• Spacer between inlet and outlet ~500 mm
• Supply line = nominal diameter of main line or 1”
• Connection from below with immersion pipe
• Connection from above or attached laterally
• Connection from below or laterally in case of large quantity
of circulating impurities

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4.1 Water quality for operating the HWR 50/100 plus
In general, a regulator is installed in heating systems where, due to the system design, increased oxygenation is likely or where
a constant low pH value is measured in the heating water.
In order to protect the heating system against corrosion and silt build-up, the general water quality is of extraordinary impor-
tance and should not be neglected when installing the Heating Water Regulator.
In conjunction with installing an HWR, the water quality should be according to the following guide values, however with re-
gards to the fulfilment of any guarantee conditions, please take note of the respective component manufacturer’s provisions in
the first place.
Treatment of filling and make-up water It is necessary to treat filling and make-up water if damages due to limes-
cale formation or corrosion due to the water quality. are likely. Only use
completely demineralised water for the magnetic® Heating Water Regulator.
Addition of chemicals When using the HWR, do not add any additional chemicals to the system,
such as inhibitors, for example.
Chemical residue Strongly contaminated old systems, in particular those which have been
pretreated using chemicals, must be rinsed completely prior to installing an
HWR. For this purpose, we recommend using our cleaning and dispersing
agent (magnetic® water demineralisation cleaner for heating systems).
Silt build-up In our experience, using the HWR reduces existing silt build-up over a
longer period. However, in order to remove existing hydraulic problems the
system should be rinsed using the magnetic® water demineralisation clea-
ner for heating systems.
pH-value The function of the regulators automatically sets the pH value of the heating
water to >8.3. This mechanism can be disturbed due to atypical acid reac-
tions, e.g. due to chemicals, which requires a case-by-case assessment.
Sodium We recommend that the sodium value should be as low as possible (<20
mg/l). Sodium has a negative impact on water conductivity and, in combi-
nation with hydroxide ions (OH-), can lead to undesirable high pH values.
Chlorides Chlorides increase conductivity and can result in corrosion, even on stain-
less steel. A value of <30 mg/l is recommended.
Sulphate / nitrate Sulphates and nitrates increase water conductivity and can contribute to
pitting corrosion to copper. A value of <50 mg/l should be maintained.
4 - Filling water quality

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magnetic®
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GDissolved metals Dissolved metals, such as iron or manganese should not be present in the
water.
Dissolved gases The content of dissolved gases, such as oxygen and carbon dioxide are
reduced through the use of an HWR. In case of the presence of circulating
bubbles, we recommend installing an additional microbubble deaerator.
TOC (organic carbon) The TOC content is a measure for the organic contamination of the water. A
value of < 30 mg/l is deemed acceptable. In case of a copper installation,
the value should not exceed 1.5 mg/l..
Electrical conductivity When using a Heating Water Regulator, the electrical conductivity of the
systemwater should be at 50 - 100 μS/cm.
Appearance The filling water in the heating should be clean and clear.
4.2 Necessity for treating the filling water
In heating systems with oxygen intake due to construction features, one should always endeavour to maintain low electrical
conductivity in the heating water, as this can cut down corrosion processes. As a regulator is mostly used in systems with
high oxygen intake, we recommend a reduction of electrical conductivity to a level of 50-100 μS/cm in conjunction with the
installation. It might be necessary to treat the filling water due to requirements from other component manufacturers, as well
as if it is necessary to fulfil a directive, such as VDI 2035.
4.3 Type of filling water treatment
If it is necessary to treat the filling water, then one should exclusively use water demineralisation to treat the filling water
in conjunction with an HWR. A residual conductivity of 50 - 100 μS/cm must be retained. When using a heating water
regulator, the filling water should not be softened using ion exchange.
4.4 Use of antifreeze agents
No classic antifreeze agents should be used with heating water regulators from magnetic®, as these agents often contain
chemical inhibitors. These inhibitors can result in the device breaking down completely. If there is a risk that the pipes in the
heating system could freeze, ethylene glycol that is labelled chemically pure may be used as an antifreeze additive. It should
be noted that the aging of the ethylene glycol leads to the formation of acids which are bound by the HWR. In case of very
high temperatures, the acid formation may exceed the degree of buffering which may result in a temporarily lower pH value. If
you are using antifreeze agents, it is necessary to check the frost protection as well as the pH value of the water annually.
4.5 Influence of electrochemical water treatment on total hardness
In our experience, depending on the composition of the water, the overall hardness of the system water will sink if the pH
value increases, and the related precipitation of calcium carbonate shall decrease slightly.
In low temperature systems, it is possible that existing free carbon dioxide may be bound by the converted magnesium ion to
form magnesium hydrogen carbonate. You don’t need to worry about an uncontrolled increase in hardness, as there will be no
free carbon dioxide in the heating water over a pH value of 8.2. In contrast to calcium carbonate there is no additional risk of
damage due to limescale formation due to the good solubility of magnesium carbonate.

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5. Assembly of the connection set / Delivery contents
In general, the associated connection set should be used to connect the magnetic® Heating Water Regulator to the system.
The connection set contains:
(3) Ball valve 1”
(4) T-piece 1” x 1” x 1/2”
(5) Drain valve 1/2”
(6) Double nipple 1”
(7) Blind plugs 1”
(8) Reduction 1“ x 3/4“
(9) Elbow piece 3/4”
(10) Water metre (rotatable) 3/4” with screw joint
(11) Control valve with automatic flow regulation
To be provided by customer:
(1) Welding shoe or T-piece for 1” supply line connection, where
applicable 1”
(2) Feed pump with pump ball valve not speed regulated
(e.g. Wilo Stratos PICO 25/1-4 with control type differential pressure
constant), synchronised with heating circulation pump
(12) Welding shoe or T-piece for 3/4” supply line connection
When installing the magnetic® HWR 50/100 plus as bypass, it is necessary to adjust the flow. It is possible to control and
document flow by means of the water metre provided.
6. Success monitoring
In order to guarantee the successful function of the regulator, one should pay particular attention to the following points:
System rinsing If the hydraulic function of the system is impaired due to impurities or the system water is
contaminated with chemicals, we recommend rinsing the system completely prior to instal-
ling the HWR. If this kind of disturbance is not present then rinsing is not necessary.
Previous damage When renovating old systems, it is necessary to check for hidden corrosion damage prior to
installation. This could be hidden by deposits (e.g. boiler return in horizontal area, rust bub-
bles on pipes and junctions). In the case of hidden corrosion damage, these deposits could
be loosened and cause water leakage from the system. We do not accept liability for conse-
quential damage due to hidden corrosion damages.
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Maintenance In accordance with our maintenance manual, the device must be desludged and rinsed 4 weeks
after installation. During the construction phase, this maintenance process is repeated twice at
intervals of 4 weeks. It is important that the pumps are turned on during the construction phase,
and that the system water can circulate. The water should be clean during the final maintenance
date. If this is not the case, the maintenance process must be repeated every 8 weeks until the
water is clear. After that, the construction phase is concluded. After this, it is sufficient to service
the device once a year.
Functional check The magnetic regulators have a display device which displays the anode activity. This display
must be checked regularly.
Professional use In our understanding, professional use refers to:
- the device is installed according to our instructions, so the system water flow through the
device is guaranteed,
- our instructions regarding the filling water have been taken into account,
- during the construction phase, the device is maintained every 4-8 weeks according to our
instructions,
- during normal service, the device is serviced once a year,
- regular anode function checks,
- replacing anodes as soon as these are used up, however ideally every 2 years,
- checking and documenting water chemistry with regards to pH values and conductivity during
maintenance and consulting us if the values strongly deviate from our recommendations,
- clear documentation of maintenance work, e.g. on our maintenance form,
The success of electrochemical treatment can be measured. You should have the water checked once a year and record the
following values: If you would like to check whether the HWR 50/100 plus is actually providing corrosion protection, you can
check this by means of certain water parameters. Just have the heating water analysed once a year for pH value, conductivity,
hardness and dissolved metals. This will provide you with a long-term statistic and you can determine the corrosion protection
function by means of the improved values. The regular water analysis also serves as a warning system if problems occur.
7. Maintenance
7.1 Functional check - flow rate
The even and constant throughflow of the HWR 50/100 plus is of fundamental importance. The flow should be at maximum
10l/min. Check and correct the water flow as part of maintenance.
• The supply line to the device must be at least 1”. A smaller line cross section can lead to insufficient water throughflow as
well as problems with impurities.
• The supply line must not be regulated, the control valves must be open.
• Is the flow regulated by means of a Y-type valve or is the control valve opened by means of a flow regulator?

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If the water metre is not working or flow is not occurring despite taking the abovementioned points into account, it is necessary
to rinse the HWR. If an automatic control valve is used for flow regulation, particles can impact its function. In this case, the valve
must be opened and cleaned. Vertical installation of the water metre can help in order to protect against possible damages. In
certain cases, it may be necessary to remove, clean or replace the water metre.
7.2 Functional check - Anode function
You can check the function of the electrochemical water treatment using the analogue display. The system is self-regulating. In
case of water with high conductivity or a large quantity of dissolved oxygen, the electrochemical cells automatically works harder
than with water which is no longer reacting. Here, the flow strength (milliamperes - mA) on the display signalises how hard the
HWR is working.
The display allows the following interpretations:
The display indicator is between 10% and 100%.
This is the normal operating range. The lower the display, the less the
anode has to work.
The display indicator is always on 100%.
The anode is working hard. If the indicator stays in this position for more than
one heating season, then the HWR may be too small or the water
may contain too many aggressive substances.
Measures: Heating water analyses, speak to your consultant.
The indicator is always near the red area,
When the HWR is emptied, it sinks to “0”.
The anode does not need to work anymore, because the water is no longer
reacting.
Measures: Observe, heating water analysis where applicable
A few years after initial operation, the indicator falls to the
red area.
The anode has been used up.
Measures: Open the device and replace the anode.
The device shows
an absolutely constant value even when the HWR is emptied.
The functional display is faulty.
Measures: Replace the functional display.

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7.3 Backwashing, desludging, container cleaning
A specialist should carry out rinsing.
1. Stop the water flow.
2. Close the cut-off valves (1) in the inlet and outlet.
3. For rinsing, connect the water pipe to the drain valve (2).
Open the drain valve (2). Demineralised water is ideal for
rinsing.
4. Collect the rinsing water from the ball valve (3) using a
bucket or use a hosepipe to dispose of the rinsing water in the
drain.
5. Open the ball valve slowly (Figure 2 - ) and raise the
magnet
on the magnetic flux filter using the chain (Figure 2-).
If no water comes out, carefully stick a wire (e.g. a welding
rod) through the ball valve (3) into the device in order to loosen
impurities. If this is not successful, you will need to open the
HWR, as described in the chapter on anode replacement.
Then it is necessary to clean the vessel through the upper
opening. In case of stubborn deposits on the walls, you can
use a diluted acid such as e.g. citric acid in order to clean the
container walls.
CAUTION!! Always neutralise the container after cleaning
using acid.
Rinse it until clean water runs out of the device. After the rinse process, close the ball valve (3) and fill the HWR with water.
6. After rinsing is concluded, lower the magnet on the chain again. Open the ball valve (1) on the supply line to the HWR again
commission the pumps again. Where applicable, check the flow volume of a heating water regulator in bypass installation.
7. Enter the rinsing process and measuring values in the maintenance form for the regulator.
The following rinsing intervals should be maintained:
- 1. Rinsing 4 weeks after installing the HWR
- 2. Rinsing after another 4 weeks
As soon as the rinsing water is clean from the start, switch to rinsing annually. Otherwise rinse every 4-8 weeks. During normal
operation, the device should be rinsed and checked once a year as part of heating maintenance. If the HWR is installed in a
new system, you can skip the rinsing series following installation. In this case, it is sufficient to rinse once a year.
7.4 Monitoring water quality
The pH value and electrical conductivity of the heating water must be documented as part of maintenance. In addition, we
recommend a comprehensive water analysis from a laboratory.
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7.5 Anode replacement
1. Opening the HWR reaction vessel to replace anodes
Once the display indicator of the regulator is on the left in the “0” range during the
heating phase, you must check the installed anode and replace it where applicable.
To do this, follow the steps below:
- Close the inlet and outlet on the HWR
- Place a bucket or other collecting vessel under the emptying valve
- If possible remove the bleeder, open the drain ball valve, and speed up the empty-
ing process by pressing the cut-off valve.
- Carefully pull the polycover off in an upwards movement.
- Sever the orange connector on the cable of the functional display.
- Remove the insulation fleece and remove the plug from the plug-in flap.
- The container is closed by means of a flange. Open the vessel and take the flange
with the anode bracket out and check it.
a) If the anode is completely used up and only the black wire is present, it is neces-
sary to install a new anode
b) If the anode is still there and the display was showing “0” before this, an oxide
layer is covering the anode, which is preventing it from working. Clean the anode
with a wire brush, then it should function again. Otherwise check the display func-
tion using a 1.5V. If it doesn’t react, then the display device is faulty.
2. Installing the new anode
When the anodes are completely used up, install the new anodes as follows:
The anodes are attached to a bushing screw (1), which is fed through the flange and
sealed using PTFE seals. Do not remove this bushing screw!
- Do not remove the anode stabiliser.
- Often the anode bracket is strongly soiled and needs to be cleaned using a steel
brush prior to removal.
- In order to remove the anode, hold the bushing screw (1) and loosen the anode
screw (2).
- Hold the new anode by screwing the anode screw (2) into the bushing screw (1). The
firm connection between the anode screw and bracket is important.
- After assembly the firm fit of the entire bushing screw on the flange must be checked
and retightened where applicable.
- Replace the seal of the flange whenever you replace the anode
- Reattach the flange or brass plug on the HWR and pay attention that the cable con-
nection is reattached to the functional display before you replace the plastic lid on the
insulation.
2
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8. Troubleshooting
8.1 What you should do if...
...there are aluminium components in the system?
For aluminium components in water bearing systems, most manufacturers state a maximum pH value of 8.5. However, it is
known that aluminium components can remain stable at higher pH values, as long as the concentration of the substance s in the
water remain low. If a regulator is installed in a system containing aluminium components, the filling and make-up water of the
system must be prepared using total water demineralisation. However, it may adjust to a pH value of >8.5. With regards to com-
plying with any guarantee claims, we refer to the relevant manufacturer's specifications.
... the system water is still not clear after one year of operating the HWR?
If the throughflow is strongly limited due to individual system parts, causing insufficient circulation, the HWR’s cleaning function
won’t work. All system parts must be fully opened as far as possible. If this is not possible, then all the parts must be rinsed
properly.
...that no water leaks when rinsing the Heating Water Regulator?
If no water is coming out during rinsing, then the lower outlet is blocked. In this case, carefully pierce the opened outlet and loo-
sen the blockage. CAUTION!! Here a large quantity of water may suddenly come out. Set up suitable collection vessels.
...water is leaking from the HWR?
If the water is dripping from the insulation, the automatic quick bleeder is faulty. In this case, it needs to be replaced.
...the water metre is not turning?
Check if the pumps are working and all the valves are open. If the water metre is still not turning, remove both the metre and
the automatic control valve and clean them. If the water metre is still not working after this, then it needs to be replaced.
...the functional display is still not reacting even though a new anode has been installed?
Test the display using a 1.5V battery. If it does not show any reaction, install a new display. However if it reacts, then there may
not be any water in the device or the anode is not installed properly, possibly there is an oxide layer on the anode. This will need
to be cleaned using a brass wire brush.
...corrosion and silt build-up occur despite HWR use?
Please check if the regulator has been laid out according to our instructions and has been installed correctly so that water
throughflow takes place. Has the maintenance been carried out as described above? Contact us and arrange a water analysis for
troubleshooting.
8.2 Success monitoring
If you would like to check if the HWR plus is really providing corrosion protection,
you can check this by means of certain water parameters. Simply have the heating water
analysed once a year for pH value, conductivity, hardness and dissolved metals. This will provide you with a long-term statistic
and you can determine the corrosion protection function by means of the improved values. The regular water analysis also serves
as a warning system if problems occur.
magnetic®
...einfach besser

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9. Maintenance record
Installer Object
Installation date:
pH value upon initial operation:
Conductivity upon initial operation:
Serial number:
Date
Colour of
rinsing
water
Water residue free yes/
no
Metre reading, if
available
Conductivity
μS/cm pH-value mA metre
Anode replace-
ment
yes/no
Executor
Note: Keep this document on the device and record properly. It serves as proof of maintenance.

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magnetic®
...einfach besser
10. Data and dimensions
Boiler material: Chrome steel v4A
Dimensions in mm HWR 50 plus HWR 100 plus
A Diameter 370 370
B Width including connection pipe 403.5 403.5
C Total height 1060 1210
D Floor - Centre inflow 295.5 295.5
E Floor - Centre outflow 745.5 895.5
F Depth incl. ball valve 460 460
G Minimum distance 1000 1000
Inflow - below / outflow - top 1" 1"
Performance data
System water content: 15000 l 35000 l
Flow rate: max. 600l/h max. 600l/h
Fitting dimension: 1" 1"
Operating pressure max.: 6 bar 6 bar
Temperature: max.: 90°C 90°C
The device is connected in a bypass. The supply line is via a 1” pipe.
The interval between the inflow and outflow should be ~ 500mm
A
D
E
C
G
BF
Anodenstrom

magnetic GmbH & Co. KG
Am Richtbach 5
D-74547 Untermünkheim
Tel. [phone]
Fax [phone]
[e-mail]
www.magnetic-online.de
Managing director Shareholder:
Michael Bader
VAT ID No.: DE 255 018 730
Trade register: HRA 571362
Registered court: Stuttgart
www.magnetic-online.de