Minimum Clearances; Water Connection; Heating Connections - Viessmann KOB PYROTEC Technical Manual

Design information
Never close or obstruct combustion air apertures and lines. Use spe-
cial safety measures to ensure that the combustion equipment can
only be operated when the aperture is open.

Minimum clearances

10,20 mm
> a
6
Dimensions and clearances
Trade name
Rated output
Part no:
a

6.5 Water connection

Heating connections

Existing systems
Flush the heating system thoroughly before connecting the boiler to
an existing heating system, to remove dirt and sludge residues.
Otherwise, these dirt and sludge residues would be deposited in the
boiler and could lead to local overheating, noise and corrosion. Boiler
damage caused by such deposits is excluded from our warranty.
Where necessary, install dirt traps.
36
(cont.)
kW
7423 674
mm
The required cross-section must not be blocked by any closure or
grille.
14,68 mm
PYROTEC grate combustion
390 530 720
7423 675 7423 676
1350 1850 1800
Connections on the heating water side
it is the customer's responsibility to ensure that there is a water supply
independent of the power supply. This (redundant) version guarantees
that the boiler is reliably cooled in the event of a power failure via the
thermally activated safety valve. We also refer to the standards and
regulations listed in this document.
> 880
950 1250
7423 677 7423 678
1600 2100
PYROTEC