EN • 15
ENGLISHFRANCAISNEDERLANDSESpAñoLITALIANoDEuTSCH
664Y2300.C
INSTALLATIoN
HEATING CONNECTIONS
- The central heating system must be completely flushed out
with tap water before connecting the boiler.
- The device must be levelled, using the provided bracket, or
the optional wall frame (not available for the Prestige Excellence).
- The operating noise can be increased if the appliance is fitted
against a wall made of wood or other lightweight construction.
Using rubber absorbers can reduce this effect.
- The connections to the central heating system and the
domestic hot water system are provided with nuts. This
simplifies the assembly with the optional wall frames. If you
do not use the wall frames, then you must use flat connection
type fittings with flat gaskets.
- The central heating safety valve is incorporated under the
appliance and must be routed to the drain with an open
onnection (to allow inspection).
- The central heating pump is located inside the appliance.
You can change its speed using the three position switch,
depending on needs or if the pipes are noisy.
- The wall frame of the Prestige Solo is fitted with an integrated
12-litre expansion vessel.
Country dependant, the Prestige Excellence is equipped with
a 12 litres expansion vessel.
This is sufficient for systems with a capacity of approximately
120 litres for the central heating. For larger-capacity systems,
you can add a suitable expansion vessel to the Prestige Solo
and the Prestige Excellence for the central heating.
- Fill the system with fresh water. Contact your ACV representative
about the use of inhibitors.
-
- You will find the connection for the filling valve and/or
drainage valve on the bottom of the appliance. Fill the appliance
to a minimum pressure of one bar. Drain the whole system and
re-fill the appliance to a pressure of 1,5 bar.
- The system must be designed to ensure a continuous flow
in the central heating circuit. If this flow is not guaranteed,
for example if using thermostatic valves, you should install a
pressure-dependent bypass in the system.
- Fit the siphon, fill it with tap water and connect the hose to
the drain using a connection with an inspection section. Make
sure you prevent the freezing of the condensates.
CONNECTION TO THE GAS
- The Prestige is fitted with a 3/4” male fitting connector,
on which you can connect the gas tap.
- The gas connection must comply with the applicable
regulations (e.g. NBN D51-003 in Belgium) in the country
of installation.
- Where there is a risk of dirt stemming from the network,
place a gas filter upstream from the connection.
- Drain the gas pipe and check in minute detail that all
the boiler pipes, both inside and outside, are sealed.
- Check the gas pressure in the system. Consult the
technical characteristics.
- Check the gas pressure and consumption when
commissioning the appliance.
HEATING CONNECTIONS : GENERAL
1. By-pass with differential pressure valve
2. Isolating valve, heating system
3. Safety valve calibrated to 3 bar, with pressure gauge
4. System filling valve
5. Expansion vessel
6. Drain cock
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