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INSTALLATIoN
Installation
9.2
Fitting the wall mounting bracket
Note
Ensure that the temperature selector is accessible from
the front.
The mounting bracket attached to the appliance has hook-in slots,
which in most cases enables installation on the bolts that are
already in place from previous appliances.
f Otherwise, transfer the dimensions for the holes to be drilled
f
on the wall (see chapter "Specification / Dimensions and
connections").
f Drill the holes, if required, and secure the wall mounting
f
bracket with screws and rawl plugs. Select fixing materials in
accordance with the wall construction/condition.
f Hook the appliance with the wall mounting bracket on to the
f
screws or bolts. Observe the dry weight of the appliance (see
chapter "Specification / Data table") and, if necessary, ask
another person to help.
f Align the appliance vertically.
f
9.3
Preparing the power cable
≥ 360
≥ 200
10. Installation
10.1 Water connection
Material losses
!
Carry out all water connection and installation work in
accordance with regulations.
Operate the appliance only with pressure-tested taps.
f Thoroughly flush out the cold water line before connecting
f
the appliance, so that no foreign matter gets into the water
heater or safety valve.
f Connect the hydraulic connections with flat gaskets.
f
10.1.1 Permissible materials
Material losses
!
When using plastic pipework, observe the manufacturer's
data and the chapter "Specification / Fault conditions".
Cold water line
Galvanised steel, stainless steel, copper and plastic are approved
materials.
DHW line
Stainless steel, copper and plastic are approved materials.
70
| PSH Classic
≥ 420
10.1.2 Fitting the safety valve
Note
A pressure reducing valve must be installed in the cold
water inlet if the water pressure is greater than 0.6 MPa.
The maximum permissible pressure must not be exceeded (see
chapter "Specification / Data table").
f Install a type-tested safety valve in the cold water inlet line.
f
Please note that, depending on the supply pressure, you may
also need a pressure reducing valve.
f Size the drain so that water can drain off unimpeded when
f
the safety valve is fully opened.
f Fit the discharge pipe of the safety valve with a constant
f
downward slope and in a room free from the risk of frost.
f The safety valve discharge aperture must remain open to
f
atmosphere.
Never install a stop fitting between the appliance and the safety
valve.
10.2 Power supply
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
Before any work on the appliance, ensure omnipolar
disconnection from the power supply.
WARNING Electrocution
The connection to the power supply must be in the form
of a permanent connection. Ensure the appliance can be
separated from the power supply by an isolator that dis-
connects all poles with at least 3 mm contact separation.
WARNING Electrocution
Ensure that the appliance is earthed.
Material losses
Install a residual current device (RCD).
Material losses
!
Observe the type plate. The specified voltage must match
the mains voltage.
f Undo the 2 screws on the bottom cap.
f
f Remove the lower cap. When doing so, take care with the
f
connecting leads for the temperature controller and ON/OFF
indicator, which are attached to the bottom cap.
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