8
x
Inspection and maintenance
53
FA ROTEX A1 BO - 10/2007
1.
Remove the sound insulation hood (see fig. 8-1).
2.
Lift and remove the boiler panelling.
3.
Remove the holding clamps on both upper heat insulation layers (see fig. 8-2). Remove both upper heat insulation layers.
Cleaning panels
The sound insulation hood and the boiler panels are made of easy-to-maintain plastic. Clean them only using soft cloth and a mild
water and soap cleaning solution. Aggressive cleaning agents with solvents can damage the plastic surface.
8.2.2 Checking the connections and pipes
• Check all oil and water-conducting components and connections for leakage and damage. If damaged, determine the cause
and replace the damaged parts.
• Check all components of the flue system for leakage and damage. Repair damaged parts or replace them.
• Check all electrical components, connections and pipes. Repair damaged parts.
8.2.3 Checking the condensate treatment unit
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 corresponds to the pH value of the water.
Î
pH value = 7
F
1: condensate treatment neutralised correctly.
Î
pH value <6: condensate treatment not neutralised adequately.
When the condensate treatment is not neutralised adequately:
1.
Check the flue gas temperature (see chapter 8.2.4).
2.
Check the burner chamber and clean if needed (see chapter 8.2.5).
3.
Dismantle and regenerate the condensate treatment unit.
WARNING!
Improper work on live components can be a health and safety risk endangering human life and adversely affect
the operation of the oil condensing boiler.
• Damage restoration on live components of the oil condensing boiler may be carried out only by authorised
and recognised heating engineers.
CAUTION!
Escaping gases can cause breathing problems and poisoning.
• The condensate treatment unit must always be connected and filled up, 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 neutralisation.
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
).
