Connecting The Heating Circuit; Connecting The Expansion Vessel - REMEHA Quinta Pro series Installation, User And Service Manual

6 Installation
Fig.8 Connecting the CH flow
Fig.9 Connecting the CH return
22
installation process (weld slag, fixing products etc.) and accumulations of
dirt (silt, mud etc.)
Note
Flush the CH installation with a volume of water equivalent to at
least three times the volume of the CH installation. Flush the DHW
pipes with at least 20 times the volume of the pipes.
Note
Due to the presence of an aluminium heat exchanger, suitable
chemicals and the correct use of these chemicals should be dis­
cussed with specialist water treatment companies.

6.3.2 Connecting the heating circuit

1. Remove the dust cap from the CH flow connection
tom of the boiler.
2. Fit the outlet pipe for CH water to the CH flow connection.
AD-0000022-01
3. For filling and tapping the boiler, install a filling and drain valve in the
system.
4. Remove the dust cap from the CH return connection
tom of the boiler.
5. Fit the inlet pipe for CH water to the CH return connection.
6. Install the pump in the CH return pipe (if applicable).
See
For the pump's electrical connection: Connecting the pump, page
30
Note
Fit a service shut-off valve in the CH flow pipe and the CH return
pipe to facilitate servicing work.
Caution
When fitting service shut-off valves, position the filling and drain
valve, the expansion vessel and the safety valve between the
shut-off valve and the boiler.
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.
When installing open-vented systems, the cold feed and expan­
sion tank heights must comply with the requirements laid down
in the Health and Safety Executive publication PM5. The Quinta
AD-0000023-01
Pro boilers require a minimum static height of 3 m (Quinta Pro
30/45/65/90) or 5 m (Quinta Pro 115).

6.3.3 Connecting the expansion vessel

1. Ensure that there is an expansion vessel with the correct volume
and inlet pressure.
2. Fit the expansion vessel on the central heating return pipe
at the bot­
at the bot­
123157 - v.06 - 24022015