18
FA ROTEX A1 BOe - 02/2014
4
x
Set-up and installation
–
Water shortage protection
: The overheating protection of
the ROTEX A1 BO safely shuts off the Oil condensing boiler
in case of lack of water and locks it. No additional water short-
age protection is needed in the construction.
–
Avoid damages caused by deposits and corrosion:
Observe the relevant regulations of technology to prevent
creation of corrosion products and deposits.
Measures for desalination, softening or hardness stabilization
are necessary, if the filling and top-up water have a high total
hardness (>3 mmol/l - sum of the calcium and magnesium
concentrations, calculated as calcium carbonate.
4.7 Connect the condensate drain
The condensation generated in oil condensing technology has a
pH value between 1.8 and - 3.7
.
Connection
The condensate box is factory-assembled in the boiler cradle and
connected to the flue gas connecting piece of the boiler. The con-
nection to the wastewater network is designed for
HT piping
DN 40
.
Ɣ
Lay the condensate drain sloping down from the boiler so that
condensation will not accumulate in the flue gas manifold.
Ɣ
In order to avoid accumulation in the flue gas connection of
the boiler, make sure that no siphon is formed between the
condensate drainage hose and the connection with the
wastewater line.
Ɣ
Fill the condensate box with water in order to prevent flue gas
from escaping into the installation room. To do this, either:
– Open the boiler body and lift out the combustion chamber
insert (see section 9.2.5); top up condensate pipe using a
hose (see fig. 4-12) or,
– Unscrew the inspection lid of the connecting piece of the
flue gas pipe and fill the condensate box by using a hose
held in the flue gas pipe.
Ɣ
Check the condensate drain section for leakage.
4.8 Establish connection and electrical
equipment
4.8.1 Instructions concerning electrical connection
All electronic control and safety systems of the ROTEX A1 BO
are connected and tested. Modifications on the electrical instal-
lation are dangerous and prohibited. The operator alone shall
bear responsibility for any resulting damage.
A 3 m flexible cable is already connected inside the unit and
placed in the control panel on the connecting circuit board. Only
the external temperature sensor and other optional applications
(e.g. storage tank sensor, circulation pump) still have to be con-
nected to the boiler control panel.
4.8.2 Establishing the electrical connection
Ɣ
Check the supply voltage (
~230 V, 50 Hz
).
Ɣ
Disconnect the junction box of the domestic installation.
Ɣ
Connect the mains connection of the ROTEX A1 BO to the
junction box of the domestic insulation. Ensure that the
polarity is correct.
Ɣ
Restore power supply to the junction box of the domestic
electrical installation.
Depending on the regulations of the community waste
water regulations, neutralisation can be dispensed with,
if the condensing boiler is operated
exclusively
with
low-sulphur
heating oil EL
.
Fig. 4-11 Connecting the condensate drain hose
Fig. 4-12 Fill condensate box with water
WARNING!
Live parts can cause an electric shock on contact and
cause fatal burns or injuries.
Ɣ
Before beginning work on live parts, disconnect
them from the power supply (switch off fuse, main
switch) and secure against unintentional restart.
Ɣ
The electrical connection should only be
performed by electrical engineers in compliance
with valid standards and guidelines as well as the
specifications of the energy supply company.
