Caution
If using synthetic pipes, follow the manufacturer's (connection)
instructions.
Carry out any welding work required at a safe distance from the
boiler or before the boiler is fitted.
6.3.5 Connecting the secondary heating circuit
1. Fit the pipe supplied with the mounting frame to the domestic cold
water connection of the automatic (re)fill device.
2. Connect the domestic cold water inlet to this pipe.
3. Fit the inlet pipe for CH water to the CH return connection .
4. Fit the outlet pipe for CH water to the CH flow connection .
Caution
Carry out any welding work required at a safe distance from the
boiler or before the boiler is fitted.
If using synthetic pipes, follow the manufacturer's (connection)
instructions.
6.3.6
Disconnecting the secondary heating circuit
These connections must be closed off if the secondary heating circuit is
not connected (solo use of the boiler). To do this, proceed as follows:
Important
The blanking plates needed are supplied with the boiler.
1. Remove the secondary heating circuit valves from the mounting
frame.
2. Place a blanking plate in the fitting (G½") and install this on the CH
return connection .
3. Place a blanking plate in the fitting (G½") and install this on the CH
flow connection .
6.3.7 Connecting the expansion vessel
The boiler is fitted as standard with an 12 litre expansion vessel.
If the water volume is greater than 150 litres or the static height of the
system exceeds 5 metres, an additional expansion vessel must be fitted.
Refer to the table below to determine the expansion vessel required for
the system.
Validity terms of the table:
3-bar safety valve
Average water temperature: 70°C
Flow temperature: 80°C
Return temperature: 60°C
The filling pressure in the system is lower than or equal to the inflation
pressure in the expansion vessel.
Fig.20 Connecting the secondary heating
circuit
Fig.21 Disconnecting the secondary
heating circuit
6 Installation
7686707 - v.01 - 06092018 AMC 27
To Next Page
Loading...
Need help?
General
