Burner Component Overview; Cm2 Pre-Mix Cylinder Burner 400/500/620 - Viessmann Vitocrossal 200 CM2 500 Service Instructions Manual

Vitocrossal 200, CM2 400, 500 and 620 Service

Burner Component Overview

CM2 pre-mix cylinder burner 400/500/620

Legend
A Burner frame
B Air pressure switch 1
C Air pressure switch 2
D Display and programming unit
E Gas valve
F Gas supply pipe
G Gas pressure switch
H Rotary damper with servomotor
(400 and 620 only)
I Gas pipe
CM2 Boiler model
a
b
c
d
in. (mm)
in. (mm)
in. (mm)
in. (mm)
J Manual shut-off valve
K Venturi mixing pipe
L Gas fan
M Burner gauze assembly
N Ignition electrodes
O Ionization electrode
P Ignition unit
Q Burner control unit
R Mains filter unit with contactor
400
20 (506)
38 5 / (980)
8
26 (661)
21a (540)
Burner Service
500
20 (506)
38 5 / (980)
8
26 5 / (675)
8
20f (525)
620
20 (506)
41c (1060)
26 5 / (675)
8
24b (622)
35