Burner Settings - Viessmann Vitorond 200 Type VR2 Service Instructions Manual

Inspection and maintenance
11. Checking mixer for easy operation and leaks
1. Remove the motorised lever from
the mixer handle, and check the
mixer for ease of movement.
12. Checking the draught stabiliser
Release the latch on the control disc.
The control disc must swing freely
during burner operation.

13. Burner settings

Burners up to 63 kW
Burners from 80 kW
Adjust the max. burner oil or gas
throughput so that the stated
maximum rated boiler output will
not be exceeded.
Note that, for multi-stage or
modulating burners, the flue gas
system must be suitable for the low
flue gas temperatures which may
arise during partial load operation.
Select the lowest partial load stage,
also taking the respective flue gas
system design into consideration.
Initial start-up, inspection and maintenance
(cont.)
2. Check the mixer for leaks.
Replace the O rings if the mixer
leaks.
3. Snap the motorised lever into
place.
(if installed)
Burner service instructions
Two stage
The following minimum output is
required for the base load stage to
protect the system against dew point
corrosion:
Rated Minimum output to be set
output (1
or base load
kW kW
80 48
100 60
Modulating
For oil-fired operation, the minimum
boiler water temperature is 60 ºC and
for gas-fired operation 65 ºC.
Adjust the return temperature raising
facility to at least 53 ºC.
st
burner stage)
9