10
5773 597 - 04
Vitocrossal 200, CM2 400, 500 and 620 Installation
Recommended
Minimum Service Clearances
Boiler
Mechanical room
Avoid air contamination by halogenated hydrocarbons
(e.g. as in sprays, paints, solvents and cleaning agents)
Avoid very dusty conditions
Avoid high levels of humidity
Protect against frost and ensure good ventilation,
otherwise the system may suffer faults and damage.
In rooms where air contamination from halogenated
hydrocarbons is to be expected, operate the boiler
only in balanced flue mode.
To enable convenient installation and maintenance,
observe the stated clearance dimensions. Maintain the
minimum clearances where space is tight.
In the delivered condition, the boiler door hinge bracket
is factory installed on the left side of the door. If required,
the boiler door hinge bracket can be reinstalled on the
right side of the door.
Minimum clearances to combustibles
Boiler model CM2
400
500
620
Top
0
Sides
0
Flue
As per vent manufacturer’s specifications
Front
0
Floor
combustible
Legend
A
Boiler
B
Burner
*1
Clearance may be reduced to zero in multi-boiler
installations, provided the side panel removal is not
required.
Note:
The burner, boiler control, condensate trap,
venting and heat exchanger are still fully
accessible from the front and rear of the boiler.
*2
Clearance for vent pipe installation.
CM2
400
500
620
a
*1
in. (mm)
20 (500)
20 (500)
20 (500)
b
*2
in. (mm)
30 (760)
30 (760)
30 (760)
c in. (mm)
20 (500)
20 (500)
20 (500)
d in. (mm)
20 (500)
20 (500)
20 (500)
e in. (mm)
24 (600)
24 (600)
24 (600)
f in. (mm)
11 (280)
11 (280)
11 (280)
g in. (mm) 15
b
(395) 15
b
(395)
15
b
(395)
