11
2551988C
Flushing Primary Circuit
The whole primary system should be cleaned and flushed in
accordance to BG29/2012 before filling ModuSat® heat
interface unit.
To open the by-pass:
Ensure both isolation valves are in the closed position as
shown in the picture.
Use a suitable screwdriver or other tool to twist the
screw on the H-shape by-pass valve into the open
position.
Close the bypass after flushing is complete.
Provide isolation valves and a strainer.
If Evinox valve kit is not used, it must be ensured that there are isolation valves
provided. Strainers on the primary and secondary heating inlets are required to ensure
the components in the unit are protected from debris and sediments.
Tighten the connections.
When connecting the ModuSat® heat interface unit, ensure that all the connections are
tightened to avoid any leaks.
First fill of the HIU
Clean and flush the system before connecting the unit.
Filling the system should be performed only after the system has been fully
flushed and clean. Poor water quality may cause failure of the operation of the
unit.
Water quality.
It is recommended that the flushing and cleaning of the primary circuit, domestic
water circuit and secondary heating circuit is performed by a qualified person in
accordance with current standards, regulations and BSRIA guidelines.
In the case of a water leak.
Take caution of hot water
Slowly close the isolation valves at the top or bottom of the unit
Contact Evinox Energy
The ModuSat® pump should not be used for flushing.
The pump is integral to the unit and should not be used for flushing and cleaning
the system. Failure to meet this requirement will invalidate the warranty.
