13
Fuel Tank
Immediately remove dirt deposits in the fuel tank (19), if any.
Boiler Cleaning
If soot is detected in the unit, stop operation at once (danger of explosion).
Clean heating coil and pre-heater as required, at least as soon as soot
deposits are being found on the heating coil or soot is detected in the exhaust
fumes.
The boiler cleaning and the adjustment of the burner unit afterwards to be
carried out by qualified service.
Removal of Mineral Deposits
In spite of constant load of the heating surface at a low level, heating of water
results in a certain formation of mineral deposits (scaling) which should fre-
quently be removed.
Therefore, weekly dismantle the spray nozzle from the spray lance and run the
unit without nozzle. If the pressure indicated on the pressure gauge exceeds
5 bar, carry out the following procedure:
The anti-scalant is an acid, i.e. corrosive!
Therefore, protective clothing/mask/gloves to be put on!
•
Open Vario Jet nozzle (counter-clockwise).
•
Put detergent suction hose into vessel with 6 l OERTZEN anti-scalant
ORM1.
•
Run machine until all anti-scalant liquid is consumed and let it work in for
approx. 30 minutes.
•
Remove detergent suction hose from tank and close Vario Jet nozzle
(clockwise).
•
Start machine and flush anti-scalant out of the machine until clean water
emerges.
Anti-scalant liquid to be collected and dumped according to
environmental regulations.