Fig. 29
Shutdown procedure
Burnout
Info Menu
42
°C
The green LED flashes
2.5.6 Chimney sweeper function
This function aids the performance of legally-required
emissions testing.
Note!
The chimney sweeper function cannot be started in “solid
fuel/buffer mode”. The chimney sweeper function must
not be started if an installed solid fuel boiler is operating
(heated up). The chimney sweeper function may be started
if there is no solid fuel boiler installed or if this is not ope-
rating but only the accumulator tank is active. In this case,
first set the operating mode switch on the WVF to relay test
2 or on the B-PLM to relay test 1 (see WVF or B-PLM ope-
rating manual).
A short press of the Manual operation / chimney sweeper
function button switches on the lighting and display. Pres-
sing the button again starts the chimney sweeper function
– Fig. 26. The boiler temperature is set to approx. 60 °C for
45 min.
Pressing the corresponding menu button enables the boi-
ler to be operated with 30 % or 100 % output – Fig. 27. The
lighting is switched off after the lighting timer has counted
down (10 min.); the function or display remains unchanged.
Only the lighting is switched on when the button is first
pressed.
The operating time is reset to 45 min. when the Manual ope-
ration / chimney sweeper function button is pressed again.
The chimney sweeper function ends
– when the Cancel button is pressed – Fig. 28.
– automatically after about 45 minutes.
2.5.7 Shut-down procedure
The boiler is switched off - Fig 29.