Shutting Down The Heating System For An Extended Period - Viessmann Vitoflex 300-UF Series Installation And Operating Instructions Manual

Vitoflex 300-UF Installation & Operating

Shutting Down the Heating System for an Extended Period

1. Switch off the system with the
The controller switches the system off automatically.
2.
WARNING
There is a risk of deflagration when the combustion
chamber door is opened. Poking around in the firebed
leads to oxygenation, which can produce a flash. Both
can result in severe burns.
Never open the combustion chamber door while the
system is in operation.
Before opening the combustion chamber door, ensure
that you are standing in a safe place.
Never poke around in the firebed.
Allow the existing firebed to burn out completely.
3. Open the combustion chamber door.
4. Allow the combustion chamber time to cool down.
5. Switch off the system at the control panel using the
mains isolator.
Cleaning and checking the combustion chamber
Note: Always clean and check the entire combustion
chamber at the end of the heating season.
Pay particular attention to the following combustion
chamber components and parts:
1. Clean off any slag deposits, etc. from the secondary
air apertures.
2. Check the ash removal zones under the grate
through the maintenance cover. Remove all ash.
3. Clean the grate elements and check for damage.
4. Have damaged grate elements replaced by the
Technical Services department.
5. Check the flanged connections of the fuel supply
system.
6. Tighten any slack screws.
7. Replace damaged gaskets.
Restarting the system
1. Switch ON the mains isolator on the control panel.
2. Switch ON the system, see page 43.
Additional Settings
key.
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