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28
Victorum EAHP Unit
Piping
In this time, the individual circuits can be
flushed separately (DHW, Zone 1, Zone 2, etc).
To flush a circuit, first the zone valve for the
circuit must be manually opened. This allows
circulation of water through the open circuit.
While flushing a circuit, it is essential to flush
each emitter separately. As most emitters will
be piped down from the main runs at ceiling
level, this helps remove all air pockets from
each leg.
During the flushing process it is important to
regularly release air from the heat pump.
4. Valve C can be intermittently opened and
closed to remove air pockets within the
fill and flush valve body. Ensure valve C
is always returned to the closed position
while flushing the system.
5. After 45 min, if all air has been removed
from the system, Valve B should be closed
and the pump allowed to pressurise the
system. The recommended pre-charge
pressure is between 1.0 and 1.5 bar.
6. When the pre-charge pressure has been
reached, Valve A should be closed.
If the pre-charge pressure has exceeded 1.5
bar, Valve B can be opened to allow system
pressure to be reduced.
7. Valve C is now opened to allow for normal
system operation.
8. The fill and flush pump may now be
switched off and the hoses disconnected.
The blanking caps can now be replaced on
Valves A & B.
A
B
C
Water
Water
A
C
B
Water
Water
A
B
C
Water
Water
