42
FA ROTEX A1 BOe - 02/2014
9
x
Service and maintenance
Ɣ
Remove the holding clamps on both upper heat insulation
layers (see fig. 9-3).
Ɣ
Remove both upper heat insulation layers.
Cleaning the silencer hood and boiler cladding
Ɣ
The low-maintenance plastic only needs to be cleaned with a
soft cloth and a mild detergent.
Ɣ
Do not use any cleaners with aggressive solvents (damage to
the plastic surface may occur).
9.2.2 Checking the connections and pipes
Ɣ
Check all oil and water-conducting components and connec-
tions for leakage and damage. If damaged, determine the
cause and replace the damaged parts.
Ɣ
Check system pressure.
If pressure is too low:
Ɣ
Detect and remedy the cause of the pressure loss.
Ɣ
Top up the system in accordance with chapter 4.10.
Ɣ
Check all components of the flue system for leakage and
damage. Repair damaged parts or replace them.
Ɣ
Check all electrical components, connections and pipes.
Repair damaged parts.
9.2.3 Checking and cleaning the condensate drain.
The condensate treatment unit cleans the draining condensation
and neutralises its pH-value. The connection and drainage line of
the condensate drain must be free from impurities.
Checking that the condensate treatment unit is
working (pH value).
1. Dip the indicator strips (provided with condensate treatment
unit) into the water from the neutralisation box outlet.
2. Remove the indicator strips after about 1 minute and
compare the colour of the indicator strip with the
accompanying colour table.
The numerical value above the colour combination corre-
sponds to the pH value of the water.
Î
pH value = 7
±
1
: condensate treatment neutralised cor-
rectly.
Î
pH value < 6
: condensate treatment not neutralised ade-
quately.
If neutralisation is not required or if the condensate preparation
adequately neutralised:
1. Open the combustion chamber and lift up the combustion
chamber insert (see section 9.2.5).
2. Check the combustion chamber and clean if needed
(see section 9.2.5).
3. Check condensate drain for free flow and leaks:
Ɣ
Use a hose or bucket to fill a larger amount of water (about
5 l) into the lower combustion chamber and watch it drain.
Î
The water must flow quickly without puddling. If the water
doesn't drain quickly, the condensate box must be
cleaned and the drain connector checked (see "Dismount-
ing and regenerating the condensate box").
Ɣ
Check the connection and drain section for leakage.
Î
During drainage, water must not escape from the conden-
sate drain at any point. Fix any leaks.
If the condensate box is not neutralised adequately:
1. Check the flue gas temperature (see section 9.2.4).
2. Check the combustion chamber and clean if needed
(see section 9.2.5).
3. Dismantle and regenerate the condensate box.
Fig. 9-3
Remove the holding clamps on the heat insulation layers
WARNING!
Improperly performed work on live components can
endanger life and health of persons and hinder the op-
eration of the ROTEX A1 BO.
Ɣ
ROTEX A1 BO Rectification of damage to live
components on the ROTEX A1 BO may only be
carried out by authorised and recognised heating
experts.
RISK OF POISONING!
Escaping gases can cause breathing problems and
poisoning.
Ɣ
The condensate treatment unit must always be
connected and filled up when the boiler is
operating, otherwise flue gases could escape into
the installation room.
The pH value measurement can be dispensed with if
low sulphur EL heating oil is used exclusively and the
responsible Water Authorities do not specify neutralisa-
tion.
A pH value < 5 despite regular maintenance indicates
that the neutralisation medium is spent and the filling
quantity is no longer sufficient. In such a case, change
the neutralisation medium (
15 45 75
)
