Viessmann KOB PYROTEC, Техническое руководство

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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. The required cross-section must not be blocked by any closure or
grille.
Minimum clearances
> 880
> 800
> a
> 500
Dimensions and clearances
Trade name
PYROTEC grate combustion
Rated output kW 390 530 720 950 1250
Part no: 7423 674 7423 675 7423 676 7423 677 7423 678
a mm 1350 1850 1800 1600 2100
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.
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.
Design information
(cont.)
36
PYROTEC
6
5822 511 GB