section 3: installation
page 8
3.1 instaLLatiOn pROCEDURE
Prior to installation, ensure that the system has been power
flushed 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 filter to be removed during servicing.
Sufficient 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, fit the 28/22 mm reducers supplied in the kit.
3. Slip the connection block between the flat face of isolating
valves, taking particular care to ensure that the directional
arrow on the connection block is pointing in the direction of
the flow of water. Failure to do so will result in reduced flow
and inhibited filter 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 filter to the connection block making sure that
you have inserted the rubber seal into the inlet connection
on the filter body. Gently position the filter into the connector
block and when you are satisfied with the position of the filter,
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/filter union
may irreparably damage the filter.
3.2 nUMbER OF MaGnEtiC FiLtERs
REqUiRED
Prior to ordering, ensure you have determined the correct number
of magnetic filters 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 filters would need to be installed in parallel
(not series). Please ensure there is sufficient clearance between
the two magnetic filters for the lower filter and magnet to be
removed and for the upper magnetic filter 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 filters would need to be installed in parallel
(not series). Please ensure there is sufficient clearance between
the two magnetic filters for the lower filter and magnet to be
removed and for the upper magnetic filter to be drained.
Figure 3-2:
35 mm pipe size
3.5 CasCaDE systEMs
For cascade systems, one magnetic filter will be required for each
heat source.
