Specifications

15
Operation
2.7.4 Solid fuel/buffer mode
If the VarioWIN pellet central heating boiler is combined with a solid fuel boi-
ler or an buffer tank, the WVF or BUL module automatically switches over bet-
ween pellet and solid fuel/buffer mode.
Combustion of the VarioWIN is stopped when the WVF or BUL module sends
the request to switch over to solid fuel/buffer mode – Fig. 16.
Following this, the system switches over to solid fuel/buffer mode and the
VarioWIN burner is locked – Fig. 17
If the pellet central heating boiler is switched off using the ON/OFF button on
the InfoWIN, an automatic switchover to solid fuel/buffer mode is performed
in conjunction with a WVF module. Once the InfoWIN unit is switched on, the
pellet central heating boiler may be locked for a maximum of 15 minutes due
to the switch-over delay. This is displayed by InfoWIN – Fig. 17.
After an hour in solid fuel/buffer mode, the display is shut down fully and only
the green LED is lit up. The display is switched back on by pressing a button
or when there is a heating requirement.
Fig. 16
Fig. 17
Solid fuel/
buffer mode
Burnout
Info Menu
42
°C
Solid fuel/
buffer mode
Burner locked
Info Menu
42
°C
2.7.3 Pellet feed
Pellet feed – Burnout
Pellet feed from the storage room into the reserve supply container has been
requested. Combustion is stopped. Pellet transport into the burner pot is stop-
ped, the vacuum fan continues to run until all the remaining pellets have been
burned and the burner pot has cooled down – Fig. 14.
Pellet feed in operation
The pellet feed is in operation. Pellets are supplied from the storage room into
the reserve supply container. The burner is locked – Fig. 15.
Fig. 14
Fig. 15
Pellet feed
Burnout
Info Menu
42
°C
Pellet feed
in operation
Burner locked
Info Menu
42
°C