Installation
Connecting piping
17
Install bleed valve
A bleed valve with sufficient dimensions must be
installed at the highest point.
Fig. 4-14: Bleed valve
If the fresh water module was connected to the buffer
cap, the T-piece for the bleed valve must be the same
size as the connection on the buffer, so that no air
pockets may form.
Fig. 4-15: Bleed valve
Installing the dirt filter upstream of the fresh water
module
At least one dirt filter must be installed upstream
of the fresh water module in the cold water
system.
Connecting the cold water pipe
Connect the cold water pipe to the fresh water module.
Fig. 4-16: Cold water connections
If the water installation is designed with rigid
pipes and narrow diameters (such as 15 mm CU
or 1/2" galvanised, for example), then pressure shocks
are to be expected. In order to protect all components
against pressure shocks, we recommend fitting a small
diaphragm pressure expansion vessel (for example,
8 litre version suitable for drinking water) in order to
absorb the pressure shocks in the hot water pipe. The
respective national hygiene standards must be
observed in the process.
Establish a CAN-Bus connection to the boiler
Establish a CAN-Bus connection between the boiler
and the fresh water module with the CAN-Bus line
supplied.
The fresh water module can also be put into
operation without a CAN-Bus connection. The
temperature of the hot water can be set with the poten-
tiometer on the under side, from 40 °C to 60 °C. Nev-
ertheless, a CAN-Bus connection to the ETATouch
controller is recommended, as this enables multiple
settings for the hot water and any faults are reported
back.
