20
FA ROTEX A1 BOe - 02/2014
4
x
Set-up and installation
4.8.4 Connect the additional electrical components
When using a hot water storage tank you must connect a 3-way
diverter valve (a) or a storage tank charging pump (b) to the
switching field board. For this:
a) connect the connection cable of the 3-way diverter valve,
included in the scope of supply of the connecting kit A1
(
VSA1,
15 48 22
) or
b) the adapter cable for the connection of a storage tank charg-
ing pump (
E 1500430
)
the the PCB plug
J2
(see fig. 4-13).
Additional optional regulating system components (room con-
trollers, mixer modules etc.) are connected to the switching field
via the PCB plug
J13
.
Additional switching contacts can be connected to the PCB plug
J8
for external boiler control.
4.9 Connecting and filling up the oil line
The oil connection must be implemented according to the local
regulations in the single strand system with an suction-side built-
in ventilation oil filter.
Ɣ
Lay oil hoses. Whilst doing so, ensure the following:
– that the combustion chamber can be opened without
removing the oil hoses,
– that oil hoses do not buckle.
Ɣ
Place the ventilation oil filter such that the oil hoses are
connected without tension and the top half of the boiler can
be opened without hindrance.
Ɣ
Insert the supplied Universal Micro-filter replacement insert
MC-7 in the venting oil filter (generally use only paper filters
with maximum 25
μ
m).
Ɣ
Connect oil line Whilst doing so, ensure the following:
– The inner diameter of the oil line must not be greater than
8 mm. As an oil line use the ROTEX VA-Oil oil feeding line
or copper pipes with diameter between 6 and 8 mm as the
oil line.
– The total resistance of the suction line (total of height dif-
ference, line resistance and individual resistances) must
not exceed 4 m water column (0.4 bar).
Ɣ
Fill up oil line. Suction the oil by using a hand pump.
Ɣ
Check the oil line in accordance with local regulations and
check for leaks.
4.10 Filling the heating system
Only fill the heating system if all installation work has been com-
pleted.
Adjusting the pressure gauge
Before the initial filling of the system you must set the correct
minimum pressure mark on the glass of the pressure gauge
(in safety group
SGB A1,
15 60 18
):
Ɣ
Rotate the pressure gauge glass in such a way that the
minimum pressure mark corresponds to the
system height
+2 m
(1 m water column corresponds to 0.1 bar).
Checking the water quality
Ɣ
Observe the instructions concerning the water connection
according to section 4.6.
Filling the system
With a hot water storage tank connected using the connection kit
A1 (
VSA1,
15 48 22
):
Ɣ
Engage the hand lever on the 3-way diverter valve (see
fig. 8-4) in the centre position (only possible when de-
energised).
Ɣ
Connect the filling hose with return flow inhibitor (½") at the
filling and draining fittings (KFE cock, fig. 4-3, pos. 3) and
secure against sliding by using a hose clamp.
Ɣ
Open water cock on the supply line.
Ɣ
Open the KFE cock and observe the pressure gauge
(in safety group
SGB A1,
15 60 18
).
Ɣ
Fill the system with water until the marking of the system
overpressure is roughly in the centre of the green range of the
pressure gauge display.
Ɣ
Close the filling & draining cock.
Ɣ
Vent the entire heating network (open the system control
valves).
Ɣ
Check the water pressure on the pressure gauge again and
top up with water if necessary.
Ɣ
Close the KFE cock and the water supply cock.
Ɣ
Remove the filling hose with backflush prevention from the
filling and draining fitting.
Additional information and a detailed description can be
found in the documentation "ROTEX Regulator RoCon
BF Controller"". It is included in the A1 BO scope of
supply.
ROTEX recommends using EL low sulphur heating oil
in order to achieve the highest efficiency and to keep
the maintenance expenditure low.
Admixing bio heating oils is possible (see chapter 3.2).
WARNING!
Contamination of drinking water endangers the health.
Ɣ
When filling the heating system, avoid backwash
of the boiler water into the drinking water lines
(adhere to EN 1717).
The centre position is on stable, when the 3-way switch
valve has not power. The 3-way-switch valve unlocks
automatically, when the voltage at the drive motor for
the valve position AB-A is applied (storage tank
charging).
ZB_RoCon_VentFkt (008.1534699)
Ɣ
ZB_RoCon_VentFkt (008.1534699)
