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4
x
Set-up and installation
Installation and maintenance instructions
22
Daikin Altherma M ECH
2
O
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN
4.4.3 Installation of the DB connection kit
The optional DB connection kit enables better accessibility for
connecting the DrainBack line (solar feed).
A
DB pipe connection (solar
feed)
B
FlowSensor (not part of the
DB connection kit, but
included with EKSRPS4A)
C
Flow limiter (FlowGuard)
D
Solar feed connection
on
the storage tank
Fig.
4-21 DB connection kit
4.4.4 Installation of the P connection kit
The optional P connection kit for B device types allows better
access for connecting the supply and return lines of a pressurised
solar system or another external heat generator on the storage
tank. The kit contains two thermally insulated corrugated pipes
that are connected to the connections of the storage tank via a
union nut. At the other end of the corrugated pipes there is an
adapter for different connection sizes of the supply and return
pipes.
A
Connection for supply (red)
B
Connection for return (blue)
Fig.
4-22 P connection kit for B device types
4.5 Electrical connection
WARNING!
Touching live parts can result in an
electric
shock
and lead to potentially fatal injuries and
burns.
●
Before beginning work on live parts,
discon-
nect all of the systems circuits from the
power supply
(switch off external main
switch, disconnect fuse) and secure against
unintentional restart.
●
The electrical connection and working on the
electrical components should only be per-
formed by
electrical engineers
in compli-
ance with valid standards and guidelines as
well as the specifications of the energy
supply company.
●
The
equipment covers and maintenance
opening covers
must be
re-fitted
immedi-
ately after completion of the work.
CAUTION!
Increased temperatures
may occur in the
Daikin
Altherma M ECH
2
O
control housing
during operation. This can result in
currently-
carrying wires
from reaching higher tempera-
tures during operation due to self-heating. For
this reason, these
lines need to
have a
contin-
uous use temperature of 90
°C
.
●
For the following connections, use only
cables with a long-term use temperature
≥
90
°C:
– Optional: electric backup heater (EKBUxx)