EN • 14
ENGLISHFRANCAISNEDERLANDSESPAÑOLITALIANODEUTSCH
664Y2800.B
HEATING CONNECTIONS
Recommendations
Before pressurising the central heating circuit
(primary) you should first pressurise the domestic
hot water tank (secondary).
- The central heating system must be completely flushed
out with tap water before connecting the boiler.
- The central heating safety valve is incorporated under the
appliance and must be routed to the drain with an open
connection (to allow inspection).
- A temperature homogeneisation pump fits the boiler.
That pump runs aswell during hot water mode aswell in
heating mode. The speed selection of the pump must be
set to 3.
- Fill the system with fresh water. Contact your ACV
representative about the use of inhibitors.
- It is possible that the pumps are locked due to the
presence of residual water from tests completed on the
appliance. Therefore, we recommend that you unblock
the pumps before filling the appliance.
- 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.
- Fit the condenstrap, 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.
INSTALLATION
HEATING CONNECTIONS : GENERAL
1. Isolating valve, heating system
2. Safety valve calibrated to 3 bar, with pressure gauge
3. System filling valve
4. Expansion vessel
5. Drain cock
6. Condenstrap
7. Heating pump
3
4
2
bar
2
1
O
3
4
1
1
5
2
6
7
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