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661Y1000 • F
BRINGING INTO SERVICE
FILLING THE DHW TANK
Before bringing the hot water tank into service, check the connections to avoid any
any risk ofleaks during filling.
The sealing of the DHW tank must only be checked with the feed water.
Thetestpressure on the site must not exceed a pressure surge of 10 bar.
The DHW tank must always be filled and pressurised before filling and pressurising
the heating circuit.
To vent the DHW installation, simply open
the highest hot water valve (8).
Fill the domestic hot water tank, by opening
the stop valves (1).
Close the hot water valve (8), after the water
flow has stabilised and the air has been
completely evacuated.
Check all connections of the installation for leaks.
FILLING THE HEATING CIRCUIT
OF THE TANK
Do not use vehicle or
non-dilutedantifreeze.
This can causeserious injury, lead
toloss of life or damage rooms.
Check that the drainage valve (6) for your
primary installation is fully closed.
Open the isolation valves (1) and (4) of the
heating circuit connected to the boiler.
Open the air vent valve located in the
upper part of the hot water tank.
In addition, follow the instructions
provided with the boiler for filling.
Open the valves (5) to start filling.
When the air is eliminated, first close the
airvent valve, then the filling valves (5).
If antifreeze is needed in the primary circuit, it must comply with Public Hygiene Regulations
and must not be toxic. A food grade of Propylene Glycol is recommended. Consult the
manufacturer to determine the compatibility of the antifreeze with the tank’s construction
materials.
Fill the system with the fresh tap water. Contact your ACV representative or installer
about the use of inhibitors.
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