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FA ROTEX HPSU compact (V5) •
4 x Set-up and installation
4.4.4 Installation of P connection kit ( 141589)
The optional P connection kit for Biv device types provides better
access for connecting the feed and return flow of a pressurised
solar system or another external heat generator to the storage
tank. The kit contains two thermally insulated corrugated pipes
that are connected to the connections on the storage tank with a
union nut. At the other end of the corrugated pipe there is an
adapter for each of the various different connection sizes of the
feed and return flow line.
4.5 Electrical connection
A Flow connection (red)
B Return flow connection (blue)
Fig. 4-15 P connection kit for Biv equipment types
WARNING!
Touching live parts can result in an
electric shock and lead to potentially
fatal injuries and burns.
Ɣ Before beginning work on live parts,
disconnect all of the systems circuits
from the power supply (switch off
main switch, disconnect fuse) and
secure against unintentional restart.
Ɣ The electrical connection and working
on the electrical components should
only be performed by electrical
engineers in compliance with valid
standards and guidelines as well as
the specifications of the energy
supply company.
Ɣ The equipment covers and mainte-
nance opening covers must be re-
fitted immediately after completion of
the work.
CAUTION!
In the controller housing of the
ROTEX HPSU compact, in continuous
running, elevated temperatures can be
generated. This can result in currently-
carrying wires from reaching higher
temperatures during operation due to
self-heating. For this reason, these lines
need to have a continuous use tem-
perature of 90 °C.
Ɣ For the following connections, use
only cables with a long-term use
temperature 90 °C:
– Exterior heat pump unit
– Optional: Electrical Backup Heater
(BUxx)
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