Now the heating system is ready to
be filled, ensure the inlet and
outlet valves are both in the open
position, with the drain valve in the
closed position, and then run the
central heating system.
Have a bucket ready to collect
spillage and partially open the
drain valve (using the cap as a tool)
to purge air from the device. Close
the drain valve once water starts to
flow. Bleed the device again after
the system has reached
temperature. Take care as the
water will be hot. Replace drain
cap.
Always service the filter before
leaving the premises. The Mag
Defender spanner can be left
with the customer.
MD22 INSTRUCTION MANUAL
7
N
OT
E
:
D
rain valve closed
4
5
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