5
x
Start-up and decommissioning
FA ROTEX Solaris RPS4 -
04/2016
17
5.2 Control Brief description
5.2.1 Temporary shutdown
By turning off at the main switch of the Solaris R4 regulator or by
removing the plug from the mains, you can shut down the ROTEX
solar system temporarily.
If there is a danger of frost:
– the ROTEX solar system must be taken into operation
again
or
– suitable antifreeze measures must be applied to the con-
nected heating system and hot water storage tank
(e.g. draining).
Draining the storage tank
Ɣ
Separate all power circuits of the solar and heating system
from the power supply and secure against inadvertent
switching on again.
Ɣ
Only GCU compact: Close gas stopcock.
Ɣ
Connect the drain hose to the (
KFE BA, 16 52 15
)
(fig. 5-1, item A) filling and draining hose and route to a waste
water drainage point which is at least at ground level.
Tab. 5-1 Legend from fig. 5-1 to fig. 5-3
Ɣ
Adjust the valve insert on the connecting angle so that the
path to the blind plug is blocked off (fig. 5-2).
Ɣ
Remove the blanking plug from the connecting elbow
(fig. 5-2) and place a suitable collection trough beneath the
unit.
CAUTION!
A heating system which is shut down can freeze
in the event of frost and may suffer damage.
Ɣ
Drain the heating system that is shut down if
there is danger of frost.
CAUTION!
CAUTION! Pumps that are switched off for a
long time can seize.
With temporarily shut-down solar systems, the
protection function from seized pumps (pump
kick function) is also deactivated.
Ɣ
Check for correct pump function when
starting up again. Seized pumps can usually
be freed up manually.
If the danger of freezing will only last for a few days, the
very good heat insulation of the ROTEX means that it
need not be drained, as long as the storage tank tem-
perature is observed regularly and not permitted to fall
below +3°C. This does not, however, provide any protection
against frost for the connected heat distribution system!
If no
KFE filling connection
is available, the con-
nection piece (fig. 5-1, item C) can be removed from
the safety overflow (fig. 5-1, item B) and used as an
alternative.
Once the drainage process is complete, this must be re-
placed before the heating system can be started again.
Fig. 5-1
Connecting the drain-
age hose
Optional: Removing the connec-
tion piece from the safety overflow
A
KFE filling connection (ac-
cessory KFE BA,
16 52 15)
B
Safety overflow
C
Hose connection piece for
safety overflow
E
Threaded piece
F
Blind plug
G
Connecting angle
X
Valve insert
Fig. 5-2
Shutting off the valve insert and removing the blanking plug
from the connecting angle
