4
x
Set-up and installation
ROTEX GCU compact -
21
Additional kits
–
Flue gas connection to a duct system (rigid flue gas line
SET E
or flexible flue gas line
SET O
)
–
Flue gas connection for exterior wall line (
SET G
)
If necessary, additionally needed concentric LAS pipes for in-
creased roof or ceiling heights, single wall PP pipes for chimney
heights of more than 10 m or additional accessory components
must be ordered.
4.6
Water connection
The connections to the ROTEX GCU compact are on the top of
the unit or on the front side (
solar return flow). Heating circuit
and storage charge have a common inflow and return flow. The
heating circuit for the storage charge is integrated at the factory
and must not be connected separately.
Important information
Ɣ
For potable water lines, observe the stipulations of EN 806
and the national regulations for potable water installation that
apply additionally.
Ɣ
To avoid a circulation line, install ROTEX GCU compact close
to the draw-off location. If a circulation line is absolutely
essential, it must be installed in accordance with the
schematics in chapter 8.1 "Hydraulic system connection".
4.6.1 Connecting the safety group (SBG)
Ɣ
Assemble the components of the safety group SBG GCU
compact, as shown in fig. 4-17 or fig. 4-18, to the connection
of the ROTEX GCU compact.
–
Install the KSG-mini so that the pressure gauge can be
easily seen during filling.
–
There should be no hydraulic blocking elements between
the heat generator and the safety valve.
–
Any steam or heating water which may escape must be
diverted by a suitable blow-off line with constant gradient
in a frost-protected, safe and observable manner.
–
Install the line in such a way that the sound insulation
hood of the ROTEX GCU compact can be placed without
problem after assembly.
–
A diaphragm expansion vessel of adequate dimensions
and pre-set for the heating system must be connected to
the return line. There should be no hydraulic blocking ele-
ments between the heat generator and the safety valve.
–
Locate the diaphragm expansion vessel in an easily
accessible place (maintenance, parts replacement).
BIV
only
CAUTION!
If the
heat exchanger
for charging the
pressurised
solar
system (see fig. 3-3 / fig. 3-6, item 18 + 19) has
an
external heating unit
(e. g. wood-burning boiler),
too high a flow temperature can cause damage to or
destroy the ROTEX GCU compact.
Ɣ
The
flow temperature
on the external heating unit
should be
limited to max. 95°C
.
CAUTION!
If the ROTEX GCU compact is connected to a cold
water line, where steel pipes are used, chips can go
into the special steel corrugated pipe heat exchanger
and remain there. This can lead to contact corrosion
damage and subsequently to leakage.
Ɣ
Flush the feed pipes before filling the heat
exchanger.
Ɣ
Install a dirt filter in the cold water supply.
–
SAS 1 (
15 60 21)
In accordance with EN 12828 you must install a safety
valve on or in the immediate vicinity of the heat ex-
changer, with which you can limit the maximum permis-
sible operating pressure in the heating system. There
should be no hydraulic blocking elements between the
heat generator and the safety valve.
Any steam or heating water which may escape must be
diverted by a suitable blow-off line with constant gra-
dient in a frost-protected, safe and observable manner.
A diaphragm expansion vessel of adequate dimensions
and pre-set for the heating system must be connected
to the ROTEX GCU compact. There should be no hy-
draulic blocking elements between the heat generator
and the diaphragm expansion vessel.
For the hydraulic connection of the GCU compact,
ROTEX recommends using the safety group
(
SGB GCU compact,
15 70 46
).
1.1
Pressure gauge
1.2
Rapid bleeder
1.3
Safety valve 3 bar
2.1
Connection diaphragm ex-
pansion vessel
2.2
Connection KFE cock
3
KFE cock
Fig. 4-16 Components for safety group SGB GCU compact
Содержание GCU compact
Страница 62: ...62 ROTEX GCU compact 13 x Notes 13 Notes...
