Connector length and location
The length of the fill connector depends on the distance to the return
air connector. Connector spacing of < 500 mm may occur if both
connectors are set into a cellar window.
~ 100
≥
500
Connector spacing ≥ 500 mm
A
Fill connector
B
Return air connector
B
A
500
~ 100
< 500
Connector spacing < 500 mm
A
Fill connector
B
Return air connector
A
B
A
B
approx. 100
200
Alternating filling between connectors
A
Baffle mat
B
Fill and return air connectors
If connectors have to be located on the long side of the storage
room, we recommend alternating filling between both connectors.
This ensures more efficient filling of the storage room. Both connec-
tors must always be earthed. Install a baffle mat opposite both con-
nectors.
Internal pellet storage room
If the fill and return air connectors have to be routed through an adja-
cent room, clad them with a material with a fire rating of F90 (rock
wool or similar). Earth each extension pipe using pipe clips. Plastic
pipes must not be used as extension pipes.
A
B
C
D
A
Connector
B
Fire-resistant cladding F90
C
Extension pipe
D
Pipe clip
Fuel storage
(cont.)
VITOFLEX 300-UF
Viesmann
73
5682428
7