Technical Information - Wolf DHW Series Installation Instructions Manual

Siting
Connection to the heating system The cylinder must be equipped with its own safety devices (safety valve,
Drinking water filter
Hot/cold water connection for
floor-standing DHW cylinder
6
3. Technical information
The cylinders may only be installed in rooms which are protected from frost,
otherwise the cylinder and all water-carrying fittings and supply pipes must be
drained if there is a risk of frost.
The formation of ice in the system may result in leaks and could
destroy the cylinder.
The installation room must provide enough space for maintenance and repair
work and the ground must have sufficient load-bearing capacity.
expansion vessel) if it can be shut off from the heating system or if the
existing components are not designed for the additional buffer volume.
Installing dirt traps or other modifications which constrict the supply line to
Please note
the safety valve is not permitted. When selecting the installation material
for the system, observe engineering standards and any possible electro-
technical processes (mixed installation).
We recommend the installation of a drinking water filter into the cold water
Please note
supply, as foreign bodies introduced into the system can block fittings and may
lead to pipe corrosion.
The DHW cylinder must be connected in accordance with the following pipework
diagram.
There should be no shut-off system installed between the floor-standing DHW
cylinder and the safety valve.
If the cylinder is connected to the hot and cold water connections with
Please note
non-metallic pipe materials, the cylinder must be earthed.
Installing dirt traps or other modifications which constrict the connecting
Please note
line between the floor-standing DHW cylinder and the safety valve is not
permitted.
- Observe the connection thread types:
- F lat gasket connections (type G), such as cold water and DHW connections:
These must be fitted with a flat gasket.
- Thread-sealing connections (type R): Using too much sealing material (e.g.
hemp), results in excessive stress on the connection. This can result in the
enamel cracking. Make sure the thread between cylinder connection and
pipework is fully covered.
- The cold water and DHW connections may contain plastic sleeve inserts.
These must remain in the cylinder. Do not pull them out before installation.
When selecting the installation material for the system, observe engineering
standards and any possible electro-chemical processes (mixed installation). The
cylinder can be equipped with an electric booster heater which is fitted with a
high limit safety cut-out. In the event of a malfunction, the high limit safety cut-
out deactivates further heating when a max. temperature of 110° C is reached.
The relevant connections must be designed for this temperature, or else
Please note
the temperature must be limited by means of a mixing valve.
It is generally recommended that DHW temperatures above 60 °C are limited
to 60 °C by means of a mixing valve.
Hot water can cause injuries, in particular scalding.
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