Burner - Viessmann VITOCROSSAL 200 Type CM2 Technical Manual

Design information
Fuel suitability for the Viessmann Matrix burner
Vitocrossal 200/300
Rated heating output
Fuel
8
– Natural gas E (H)
– Natural gas LL
– LPG P

8.6 Burner

Suitable burners
Pressure-jet gas burner
The burner must be tested to EN 676 and CE-designated in accord-
ance with Directive 2009/142/EC.
Burner versions
Vitocrossal 200/300
Rated heating output
Viessmann burner
– MatriX radiant burner
– MatriX cylinder burner
Third party burners (see pricelist)
– Supplied by ELCO
– Supplied by Weishaupt
Balanced flue operation
Draught with Viessmann burner
In balanced flue operation, the draught is
dependent on the pressure drop in the
ventilation air pipe.
Burner from other manufacturers
Pressure-jet gas burners are available from ELCO and Weishaupt; see
pricelist. Delivery by the burner manufacturers. Further suitable burn-
ers on request.
Application range
The boiler operates with positive pressure in the combustion chamber.
Use a burner which is suitable for the pressure drop on the hot gas
side and the draught from the flue pipe (see the datasheet for the boiler
concerned). The material of the burner head must be suitable for oper-
ating temperatures of at least 500 °C.
Burner installation
The boiler door is supplied as part of the standard delivery for boilers
with a Viessmann burner.
When using third party burners:
■ For the Vitocrossal 300, type CT3B, the circle of burner fixing holes
and the blast tube aperture match the dimensions of many well
known burner makes. If the dimensions vary from the standard sup-
plied, first drill the fixing holes in the burner plate and then cut out
the blast tube aperture, before mounting the burner plate on the
boiler door.
■ For the Vitocrossal 300, type CR3B, the burner aperture corre-
sponds to EN 303-1. Use the burner plate (part of the standard
delivery) to mount the burner.
8.7 Flue gas routing
Flue systems
Requirements for flue systems are contained in the Sample Combus-
tion Ordinance and in the TRGI [Germany].
Accordingly, the following are required:
VIESMANN
24
(cont.)
Type CM2
kW 87 to 311
―
Type CM2
kW 87 to 311
x
―
―
―
x
Pa 70
mbar 0.7
CM2 CM3
400 to 620 87 to 142
x x
x x
x
CM2 CM3
400 to 620 87 to 142
― x
x ―
― ―
― ―
x ―
70 70
0.7 0.7
Burner versions
You may use multi stage or variable (modulating) burners.
Burner plates may be factory fitted on request (chargeable option). If
this is required, please state the burner make and type when order-
ing.
A drilled burner plate is part of the standard delivery when purchasing
a third party burner from ELCO or Weishaupt.
Please check with the manufacturer if using a burner whose blast tube
diameter is larger than the blast tube aperture. For further details, see
the datasheet.
CT3U CT3B
400 to 630 187 to 314
x x
x x
― ―
CT3U CT3B CR3B
400 to 630 187 to 635 187 to 1400
― x to 314 kW
x ―
― x
― x
x ―
70 70
0.7 0.7
Gas condensing boilers
x
x
―
―
―
―
x
―
―
―