Wolf TSW-120 Installation Instructions Manual page 13

Drinking water filter
Pressure reducing
valve
Check valve
Expansion valve
Expansion vessel
Drain
DHW connection -
free-standing DHW
cylinder ...SW-120
Secondary return
Installation instructions DHW cylinders TSW-120/CSW-120
3048420_0707
Installation
We recommend the installation of a drinking water filter into the
cold water supply, as foreign bodies introduced into the system
can block fittings and may lead to pipe corrosion.
Generally, we would recommend the installation of a pressure
reducer. On the DHW side, the DHW cylinder may be operated
with a max. pressure of 10 bar. Install a pressure reducer if the
supply system delivers a higher pressure. To avoid flow noise
inside of buildings, regulate the pipe pressure to approx. 3.5 bar.
Provide a centralised pressure reducer, if mixer taps are used.
Exceeding the permissible operating pressure may
cause leakages and destruction of the storage tank.
The check valve is included into the expansion valve.
Install a type-tested safety valve into the cold water supply. The
installation of dirt traps or other restrictions into the supply pipe
to the safety valve is not permitted.
Note: Do not fit a valve between the expansion valve and the
DHW cylinder.
Install the expansion vessel with the T-piece directly into the line,
that a flow through is guaranteed
Install the DHW cylinder so that it can be removed without
dismantling. The TSW-120 is provided with a drain below the
decorative panel.
When installing the DHW cylinder ...SW below the gas-fired
boiler, use the Wolf accessory "DHW cylinder connection set for
subsurface installation" or the "DHW cylinder connection set for
surface installation".
A secondary return may be fitted (consult the lavel on the face
of the unit for the correct location). A non-return valve (not
supplied) must be fitted to prevent back-flow and a bronze pump
will be needed in conjunction with a pipe thermostat to circulate
the hot water (both not supplied).
Note: An extra expansion vessel may be required where the
additional volume of the secondary return exceeds the capacity
of the expansion vessel supplied.
Connection set ...SW-120 for surface installation (accessory)
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