Grant Vortex Mag One User guide

UK | DOC 0098 | Rev 2.0 | October 2017
Grant Vortex Mag One
Universal Magnetic Central Heating Filter
Installation and Servicing Instructions

GRANT ENGINEERING (UK) LIMITED
Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU
Tel: [phone] Fax: [phone]
Email: [email protected] www.grantuk.com
This manual is accurate at the date of printing but will be superseded and should be disregarded if specifications and/or appearances are changed in the interests of continued product improvement.
However, no responsibility of any kind for any injury, death, loss, damage or delay however caused resulting from the use of this manual can be accepted by Grant Engineering (UK) Limited, the
author or others involved in its publication.
All good sold are subject to our official Conditions of Sale, a copy of which may be obtained on application.
© Grant Engineering (UK) Limited. No part of this manual may be reproduced by any means without prior written consent.
IMPORTANT NOTE FOR INSTALLERS
These instructions are intended to guide Installers on the
installation, commissioning and servicing of the Grant Vortex Mag
One magnetic lter. After installing the magnetic lter, leave these
instructions with the user.
SPECIAL TEXT FORMATS
The following special text formats are used in these instructions
for the purposes listed below:
! WARNING !
Warning of possible human injury as a consequence of not
following the instructions in the warning.
! CAUTION !
Caution concerning likely damage to equipment or tools
as a consequence of not following the instructions in the
caution.
! NOTE !
Used for emphasis or information not directly concerned
with the surrounding text but of importance to the reader.
PRODUCT CODES COVERED
These instructions cover the following product codes:
VM01/X
SERVICING
The magnetic lter should be serviced at least every twelve
months and the details entered in the Service Log in these
instructions.
Page 2

1 INTRODUCTION 4
1.1 General 4
1.2 How a magnetic lter works 4
1.3 Safekeeping of the installation 4
instructions
1.4 Product contents 4
1.5 Installation 5
1.6 Location 5
1.7 Orientation 5
1.8 Access and clearances 5
1.9 Reducing valves 5
1.10 Magnetic cautionary advice 5
2 TECHNICAL DATA 6
2.1 Materials specication 6
2.2 Magnet specication 6
2.3 Flow rate and pressure drop 6
2.4 Dimensions 7
Contents Page 3
3 INSTALLATION 8
3.1 Installation procedure 8
3.2 Number of magnetic lters required 8
3.3 Installing with pipe sizes of 22 mm 8
or 28 mm
3.4 Installing with pipes sizes of 35 mm 8
3.5 Cascade systems 8
4 COMMISSIONING 9
5 SERVICING 9
6 CHEMICAL DOSING 9
7 GUARANTEE 10
8 SERVICE LOG 11
CONTENTS

Section 1: IntroductionPage 4
1.1 GENERAL
The Mag One magnetic central heating lter is the ideal solution
to costly and unnecessary system breakdowns caused by both
magnetic and non-ferrous particulate in uid based systems.
Thanks to its innovative triple action magnetic ltration system,
it identies and retains all types of magnetite and non-ferrous
debris.
The Mag One magnetic central heating lter can be used on
all types of central heating systems in any orientation and it is
recommended, for maximum effect, that it be installed on the
return leg of the circuit, between the last radiator and the boiler/
heat pump.
The isolating at face ball valves, provided with the magnetic lter,
make maintenance and installation quick and simple.
As well as being tted in conjunction with the installation of a new
system, the Mag One magnetic lter is well suited to being retro-
tted to an existing system where the boiler/heat pump is being
replaced – protecting new components and increasing the life
span and effectiveness of existing ones.
1.2 HOW A MAGNETIC FILTER
WORKS
Through a combination of innovative product design and a
clever use of the laws of physics, water is guided through the
components of the Mag One to achieve maximum ltration with
each pass of the circuit.
Water enters the lter through our ingenious diverter block and
then passes into the magnetic lter 500 ml capacity pressure drop
chamber.
Here, particulate is forced through the non-ferrous lter and down
towards the magnet. Through a process of natural convection,
water then circulates back to the top of the lter and back into the
system leaving all magnetite and particulate debris captive at the
base of the lter’s magnetic core.
All system contaminants are then easily removed during servicing
by isolating the Mag One from the system and removing the
magnet from the screw cap at the top of the pot then opening the
drain valve, removing the majority of contaminants within the pot
in seconds.
1.3 SAFEKEEPING OF THE
INSTALLATION INSTRUCTIONS
These Installation and Servicing Instructions must be handed over
to the householder on completion of the installation. They should
be kept for future reference as necessary.
1.4 PRODUCT CONTENTS
The following are included with the Mag One:
• 1 x Installation and Servicing Instructions
• 1 x Magnetic Filter body
• 1 x Accessories box containing:
• 1 x Connection block
• 2 x Isolating Valves
• 1 x Resealable bag containing:
• 1 x Large o-ring for screw seal
(1 x spare)
• 2 x Large at washers for the inlet connection
(1 x spare and 1 to be tted during installation)
• 4 x Small at washers for between the connection block
and isolating valves
• (2 x spare and 2 to be tted during installation)
• 1 x Small o-ring for manual air vent
(1 x spare)
• 1 x Resealable bag (contained within above bag) containing:
• 1 x Brass hose adaptor
• 1 x Air bleed key
• 1 x Service label
• 1 x Sealed bag containing:
• 2 x 28/22 mm reducing valves (refer to Section 1.8)
• 1 x Spanner
Figure 1-1: Mag One spanner
1 INTRODUCTION

Section 1: Introduction Page 5
1.5 INSTALLATION
Installation must be carried out by a competent installer in
compliance with all current local planning requirements, Building
Regulations, codes of practise, Health and Safety legislation.
1.6 LOCATION
The Mag One should be installed on the return leg of the circuit,
between the last radiator and the boiler/heat pump.
Table 1-2: Installation locations
Location Suitable?
Internally Yes
Inside internal boiler casing No
Externally No
Inside external boiler casing Yes
1.7 ORIENTATION
The Mag One body can be rotated by 360° and installed in any
orientation without affecting performance.
1.8 ACCESS AND CLEARANCES
Please allow enough clearance around the Mag One to ensure
the isolating valves can be fully closed.
It is recommended that a clearance of at least 250 mm is given to
enable the magnet and lter to be removed during servicing.
Sufcient clearance must also be given to ensure that the Mag
One can be drained easily into a suitable container.
1.9 REDUCING VALVES
The Mag One is supplied with a pair of 28 mm isolating valves
and 28/22 mm reducers for connection to 22 mm pipe.
1.10 MAGNET CAUTIONARY ADVICE
! WARNING !
The magnet tted in the Mag One has a strong attractive
force and consideration should be given to the following:
• Magnets could affect the functioning of pacemakers
and implanted heart debrillators
• Keeping magnets away from devices and objects, i.e.
TVs, laptops, credit and ATM cards, etc. that could be
damaged by strong magnetic elds.

Section 2: Technical DataPage 6
2.1 MATERIALS SPECIFICATION
Table 2-1: Materials specication
Valve body and screw cap PA66 30% GF
Integral non-ferrous lter POM
Screw cap, connector pot and drain valve seals EPDM
Ball valve and drain valve o-ring seals EPDM
Magnet Noedymium earth magnets
Ball valves, connector block and drain valve Brass
2.2 MAGNET SPECIFICATION
Table 2-2: Magnet specication
Gauss (G) rating 12,000
2.3 FLOW RATE AND PRESSURE DROP
0.01
0.1
1
100 1000 10000
Pressure difference (Bar)
Flow (kg/h)
28mm
22mm
10
2 TECHNICAL DATA
Figure 2-3: Flow rate and pressure drop

2.4 DIMENSIONS
! NOTE !
Please allow enough clearance around the Mag One to
ensure the isolating valves can be fully closed.
It is recommended that a clearance of at least 250 mm is
given to enable the magnet and lter to be removed during
servicing.
Sufcient clearance must also be given to ensure that the
Mag One can be drained easily into a suitable container.
Section 2: Technical Data Page 7
Figure 2-4: Mag One dimensions

Section 3: InstallationPage 8
3.1 INSTALLATION PROCEDURE
Prior to installation, ensure that the system has been power
ushed and has been suitably drained down. On open vented
systems, make sure that the feed and expansion tank is isolated.
The Mag One should be installed on the return leg of the circuit,
between the last radiator and the boiler/heat pump.
The Mag One body can be rotated by 360° and installed in any
orientation without affecting performance.
Please allow enough clearance around the Mag One to ensure
the isolating valves can be fully closed.
It is recommended that a clearance of at least 250 mm is given to
enable the magnet and lter to be removed during servicing.
Sufcient clearance must also be given to ensure that the Mag
One can be drained easily into a suitable container.
1. Remove 205 mm of system pipework for the installation,
making sure that open ends of both pieces are free of debris
or burrs and ready to receive the nut and olive.
2. Fit both isolating valves but do not tighten fully. If connecting
to 22 mm pipe, t the 28/22 mm reducers supplied in the kit.
3. Slip the connection block between the at face of isolating
valves, taking particular care to ensure that the directional
arrow on the connection block is pointing in the direction of
the ow of water. Failure to do so will result in reduced ow
and inhibited lter performance.
4. Hand tighten the isolating valves to the connection block
making sure that the rubber washers provided have been
situated between the two. When you are happy that
the connection block and isolating valves are facing an
appropriate direction for the installation, fully tighten all four
nuts.
5. Present the lter to the connection block making sure that
you have inserted the rubber seal into the inlet connection
on the lter body. Gently position the lter into the connector
block and when you are satised with the position of the lter,
hand tighten. If further tightening is required, gentle pressure
can be applied with a suitably sized set of pump pliers.
! WARNING !
Excessive tightening of the connection block/lter union
may irreparably damage the lter.
3.2 NUMBER OF MAGNETIC FILTERS
REQUIRED
Prior to ordering, ensure you have determined the correct number
of magnetic lters required for the system.
This will be dependent on pipe sizes of the system and the output
of the heat source.
Refer to Sections 3.3 and 3.4 for further information.
3.3 INSTALLING WITH PIPE SIZES OF
22 mm OR 28 mm
Table 3-1: 22 mm or 28 mm pipe sizes
Pipe size 5K differential
(heat pumps)
20K differential
(boilers)
22 mm ≤5.8kW maximum ≤26kW maximum
28 mm ≤10kW maximum ≤36kW maximum
If the output of the heating system exceeds that of the maximum
kW, then two magnetic lters would need to be installed in parallel
(not series). Please ensure there is sufcient clearance between
the two magnetic lters for the lower lter and magnet to be
removed and for the upper magnetic lter to be drained.
3 INSTALLATION
Figure 3-2: 22 or 28 mm pipe size
3.4 INSTALLING WITH PIPE SIZES OF
35 mm
Table 3-3: 35 mm pipe sizes
Pipe size 5K differential
(heat pumps)
20K differential
(boilers)
35 mm ≤15.5kW maximum ≤70kW maximum
If the output of the heating system exceeds that of the maximum
kW, then two magnetic lters would need to be installed in parallel
(not series). Please ensure there is sufcient clearance between
the two magnetic lters for the lower lter and magnet to be
removed and for the upper magnetic lter to be drained.
Figure 3-2: 35 mm pipe size
3.5 CASCADE SYSTEMS
For cascade systems, one magnetic lter will be required for each
heat source.

Sections 4, 5 and 6: Commissioning, Servicing and Chemical Dosing Page 9
BEFORE YOU COMMISSION
For optimum performance after installation, the boiler/heat pump
and the associated heating system must be ushed in accordance
with the guidelines given in BS 7593 (Treatment of water in
domestic hot water central heating systems). This must involve
the use of a proprietary cleaner, such as Sentinel X300 (new
systems), Sentinel X400 (existing systems), or Fernox Restorer.
After cleaning, it is vitally important that all traces of the cleaner
are thoroughly ushed from the system.
For long term protection against corrosion and scale, after
cleaning/ushing a suitable inhibitor should be added to the
system water, such as Sentinel X100 or Fernox MB-1, in
accordance with the manufacturers’ instructions.
Failure to follow the above will invalidate the guarantee.
The procedure for commissioning the lter is as follows:
1. Open the lowest isolating valve to the air bleed – leave the
upper most isolating valve closed. The air bleed should be
closed initially during commissioning.
2. Making sure that all open ends of the system are closed,
begin to rell the system.
3. Bleed radiators as required.
4. Return to the Mag One lter and open the air bleed until
water ows from it.
5. Open the top isolating valve and allow the remaining system
volume to ll.
6. Open the air bleed again to ensure all air has been removed
from the lter.
7. Adjust the installation/service date wheel to reect the month
the Mag One lter was installed. This will act as a service
guideline for the end user.
8. A service label is supplied with the Mag One and this must
be completed by the installer and displayed in an unobtrusive
but obvious position on or near the lter.
! NOTE !
Air may continue to be present in the system pipework for
a small period as the central heating is run after installation
of the Mag One lter.
We recommend that you check the air bleed again to
ensure that all air has been purged from the system.
4 COMMISSIONING
We recommend that the Mag One lter is serviced once every
twelve months, or as required in heavily contaminated systems.
The Mag One is supplied with a range of replacement o-rings and
washers, should these be needed, as well as a brass drain hose
adaptor for draining the lter during servicing.
Prior to cleaning the Mag One lter, ensure that the working
environment is safe.
It is advisable to turn the boiler/heat pump off before commencing
any maintenance works.
Caution should also be taken regarding the temperature of the
contents of the lter.
1. Firstly, turn the isolating valves to the closed position.
2. Unscrew the magnet from the screw cap and pull it free from
the pot. This will demagnetise any ferrous material in the pot
and allow it to fall to the base.
3. After having attached the brass hose adaptor to the drain
valve, slowly open the drain valve at the base of the Mag
One lter and allow the contents of the pot to drain in a
suitable container ensuring the surrounding area is fully
protected.
4. Once the ow of water has stopped, open the manual air
bleed to ensure that the lter is completely empty.
5. Remove the screw cap from the main body of the lter and
remove the POM non-ferrous lter from inside the pot. Rinse
both of these with clean water only.
6. Once complete, reassemble and commission the lter as
before.
7. Adjust the installation/service date wheel to reect the month
the Mag One lter was serviced. This will act as a service
guideline for the end user.
8. Update the service label.
5 SERVICING
Before any chemical dosing is attempted, rst ensure that system
pressure has been relieved and an appropriate volume of uid
has been removed to accommodate the dosing agent.
To dose from the Mag One lter:
1. Isolate it from the system using the isolating valves
2. Drain the pot contents into a suitable container and open
the manual air bleed to ensure the dosing pot is completely
empty.
3. Close the drain valve and manual air bleed, unscrew the cap
at the top of the pot and remove.
4. Dose the system using a suitable corrosion inhibitor in
accordance with the manufacturers instructions.
5. When complete, replace the screw cap and open the
isolating valves.
6. Repeat as necessary to dose with required amount.
7. Top up the system volume as required.
6 CHEMICAL DOSING

Section 7: GuaranteePage 10
You are now the proud owner of a Mag One magnetic lter from Grant
Engineering (UK) Limited which has been designed to give years of
reliable, trouble free, operation.
Grant Engineering (UK) Limited guarantees the manufacture of the
Mag One including all mechanical components for a period of two
years from the date of installation4, provided that the Mag One has
been installed in full accordance with the installation and servicing
instructions issued.
If a fault or defect occurs within the manufacturer’s guarantee
period
If your Mag One should fail within the guarantee period, you must
contact Grant Engineering (UK) Limited who will arrange for the repair
under the terms of their guarantee, providing that the Mag One has
been correctly installed, commissioned and serviced (if the appliance
has been installed for more than twelve months) by a competent
person and the fault is not due to tampering, misuse, trapped air or the
failure of any external components not supplied by Grant Engineering
(UK) Limited.
In the rst instance
Contact your installer or commissioning engineer to ensure that
the fault does not lie with the system components or any incorrect
setting of the system controls that falls outside of the manufacturer’s
guarantee otherwise a service charge could result. Grant Engineering
(UK) Limited will not be liable for any charges arising from this
process.
If a fault covered by the manufacturer’s guarantee is found
Ask your installer to contact Grant Engineering (UK) Limited Service
Department on [phone] who will arrange for a competent
service engineer to rectify the fault.
Remember - before you contact Grant Engineering (UK) Limited:
• Ensure the Mag One has been installed, commissioned
and serviced by a competent person in accordance with the
installation and servicing instructions.
• Ensure the problem is not being caused by the heating system
or its controls. Consult the installation and servicing instructions
supplied with the boiler for guidance.
Free of charge repairs
During the two year guarantee period no charge for parts will
be made, provided that the Mag One has been installed and
commissioned correctly in accordance with the manufacturer’s
installation and servicing instructions and, for a Mag One over twelve
months old, details of annual service is available2.
The following documents must be made available to Grant
Engineering (UK) Limited on request:
• Service documents
Chargeable repairs
A charge may be made (if necessary following testing of parts) if the
breakdown is due to any fault(s) caused by the plumbing or heating
system, e.g. trapped air, etc. See ‘Extent of manufacturer’s guarantee’
below.
Extent of manufacturer’s guarantee:
The manufacturer’s guarantee does not cover the following:
• If the Mag One has been installed for over two years.
• If the Mag One has not been installed, commissioned, or
serviced by a competent person in accordance with the
installation and servicing instructions.
• Fault(s) due to accidental damage, tampering, unauthorised
adjustment, neglect, misuse or operating the Mag One contrary
to the manufacturer’s installation and servicing instructions.
• Damage due to external causes such as bad weather conditions
(ood, storms, lightning, frost, snow, or ice), re, explosion,
accident or theft.
• Fault(s) due to incorrectly sized expansion vessel(s), incorrect
vessel charge pressure or inadequate expansion on the system.
• Fault(s) caused by external electrics and external components
not supplied by Grant Engineering (UK) Limited.
• Mag One servicing, de-scaling or ushing.
• Checking and replenishing system pressure.
• Components not supplied by Grant Engineering (UK) Limited.
• Heating system components, such as radiators, pipes, ttings,
pumps and valves not supplied by Grant Engineering (UK)
Limited.
• Instances where the Mag One has been un-installed and re-
installed in another location.
• Use of spare parts not authorised by Grant Engineering (UK)
Limited.
Terms of manufacturer’s guarantee:
• The Company shall mean Grant Engineering (UK) Limited.
• The Mag One must be installed by a competent installer and in
full accordance with the relevant Codes of Practice, Regulations
and Legislation in force at the time of installation.
• The Mag One is guaranteed for two years from the date of
installation3, providing that after twelve months the annual
service has been completed2. Any work undertaken must be
authorised by the Company and carried out by a competent
service engineer.
• This guarantee does not cover breakdowns caused by incorrect
installation, neglect, misuse, accident or failure to operate the
Mag One in accordance with the manufacturer’s installation and
servicing instructions.
• The balance of the guarantee is transferable providing the
installation is serviced prior to the dwelling’s new owners taking
up residence. Grant Engineering (UK) Limited must be informed
of the new owner’s details.
• The Company will endeavour to provide prompt service in
the unlikely event of a problem occurring, but cannot be held
responsible for any consequences of delay however caused.
• This guarantee applies to Grant Engineering (UK) Limited
Mag One purchased and installed on the UK mainland, Isle of
Wight, Channel Islands and Scottish Isles only1. Provision of
in-guarantee cover elsewhere in the UK is subject to agreement
with the Company.
• All claims under this guarantee must be made to the Company
prior to any work being undertaken. Invoices for call out/repair
work by any third party will not be accepted unless previously
authorised by the Company.
• Proof of purchase and date of installation, commissioning and
service documents must be provided on request.
• If a replacement Mag One is supplied under the guarantee (due
to a manufacturing fault) the product guarantee continues from
the installation date of the original Mag One, and not from the
installation date of the replacement3.
• The replacement of a Mag One under this guarantee does not
include any consequential costs.
• The Mag One must not be sited in a location where it may be
subjected to frost.
Foot notes:
1. The UK mainland consists of England, Scotland and Wales only.
Please note that for the purposes of this denition, Northern
Ireland, Isle of Man and Scilly Isles are not considered part of
the UK mainland.
2. We recommend that your Mag One is serviced every twelve
months (even when the guarantee has expired) to prolong the
lifespan and ensure it is operating safely and efciently.
3. The guarantee period will commence from the date of
installation, unless the installation date is more than six months
from the date of purchase, in which case the guarantee period
will commence six months from the date of purchase.
7 GUARANTEE

Section 8: Service Log Page 11
Service 1
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 2
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 3
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 4
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 5
Date
Engineer
Company name
Telephone number
Comments
Signature
8 SERVICE LOG
Service 6
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 7
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 8
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 9
Date
Engineer
Company name
Telephone number
Comments
Signature
Service 10
Date
Engineer
Company name
Telephone number
Comments
Signature

GRANT ENGINEERING (UK) LIMITED
Hopton House, Hopton Industrial Estate, Devizes, Wiltshire, SN10 2EU
Tel: [phone] Fax: [phone]
Email: [email protected] www.grantuk.com