Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 71

Maintenance and cleaning work
Danger
Risk of crushing or entanglement due to rotating
and moving parts.
Do not reach in through the maintenance cov-
ers.
Do not remove any protective covers.
Danger
Wood dust, pellet dust, cinders and soot pose a
risk to the eyes, skin and airways.
Wear suitable personal protective equipment,
especially breathing equipment and safety gog-
gles.
Overview of maintenance and cleaning work on the boiler
Activity
Emptying the ash box
Cleaning the combustion chamber
Check grid end position and clean
Check the grate limit switch
Clean the flue gas fan
Cleaning Lambda probe
Cleaning the flue gas collector chamber
Check heat exchanger pipes and heat
exchanger cleaning
Clean the ash chamber and ash removal
parts
Check light barriers and sight glasses
Check expansion vessel and system
pressure
Service the safety valves and check their
operation
Cleaning flue system and checking it is
working correctly
Checking gaskets
Checking operating states, actuators and
sensors
Emissions testing
Lubricate the drive chains and drive unit
bearings
Replacing the battery inside the control
unit
Maintenance confirmation and reset
(control unit)
*1 4000 hours when operating with wood pellets, 2000 to 4000 hours when operating with woodchips, interval subject to fuel
quality.
6000 hours when operating with wood pellets, 4000 to 6000 hours when operating with woodchips, interval subject to fuel
*2
quality.
Commissioning, inspection, maintenance
(cont.)
Note
Before restarting the heating system, all opened cov-
ers and flaps on the boiler must be closed again.
Note
Observe the country-specific regulations on the dis-
posal of materials, waste and system components.
See After
page 300
Hours run
72 X
74
75
77
77
79
79
84
85 X
85
86
86
87
87
87
87 Maintenance interval: 3 years
89 Maintenance interval: 5 years
88 After maintenance has been carried out
After After
2000 to 4000 4000 to 6000
Hours run *1 Hours run
or at least once a
year
X
X
X
X
X
X
X
*2
X
X
X
X
X
X
71