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INSTALLATIoN
electrical connection
f Fill the heating system via the left-hand drain & fill valve.
f Vent the pipework.
11.5.2 DHW cylinder filling
f Fill the DHW cylinder via the cold water connection.
f Open all downstream draw-off valves until the appliance is
full and the pipework is free of air.
f Adjust the flow rate. For this, observe the maximum permis-
sible flow rate with a fully opened tap (see chapter "Specifi-
cation / Data table"). If necessary reduce the flow rate at the
butterfly valve of the safety assembly.
f Carry out a tightness check.
f Check the safety valve.
11.6 Venting the appliance
2
1 Air vent valve
2 PCB
f Vent the pipework and indirect coil by pulling up the red cap
on the air vent valves.
f Close the air vent valves after the venting process.
Material losses
!
Close the air vent valves again after venting.
12. Electrical connection
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
f Before any work on the appliance, disconnect all
poles from the power supply.
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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.
This requirement can be met by using contactors, circuit
breakers, fuses/MCBs, etc.
Material losses
!
Provide separate fuses for the two power circuits of the
appliance and the control unit.
Material losses
!
Provide separate fuses/MCBs for the two power circuits,
i.e. for the compressor and the electric emergency/boost-
er heater circuits.
Material losses
!
Observe the type plate. The specified voltage must match
the mains power supply.
Note
You must have permission to connect the appliance from
the relevant power supply utility.
The terminal box of the appliance is located behind the front casing
(see chapter "Installation / Removing / fitting the front casing").
f Cut the 4 cable entry plugs (1) only as much as required for
the cable diameter in order to minimise the exchange of air.
HSBB 180 Plus|HSBB 180 S Plus|
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