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BD / BF / ED / FD / FED (E3.1) 03/2019 page 37/106
8. Timer functions
8.1 Selecting the timer function
There are up to three 3 timer functions:
Timer function “Delayed Off”
The selected timer run-time immediately starts running down.
When the timer expires the heating turns off. Chambers with fan: The fan may
continue working according to the selections made.
Timer function “Temperature dependent Delayed Off”
The selected timer run-time only starts running down, when the actual value
reached or exceeds the selected set-point. When the timer expires the heating
turns off. Chambers with fan: The fan may continue working according to the
selections made.
Timer function “Delayed On”
The selected timer run-time immediately starts running down, the heating turns
off. Chambers with fan: The fan may be working according to the selections
made.
When the timer expires the heating turns on and remains in continuous opera-
tion.
The chambers BD, ED and FD offer the timer function “Delayed Off”
The chambers BF and FED offer all the three timer functions.
Stage Heating
Fan (Chamber with
fixed fan speed: FD)
Fan (Chambers with
adjustable fan speed:
BF, FED)
Timer function “Delayed Off”
Timer running
Control to the
temperature set-point
On (100 %)
Rotation speed according
to fan speed set-point
After the timer
expired
Off
On (100 %) or Off
(0 %) acc. to selection
Rotation speed according
to setting of timer function
Timer function “Temperature dependent Delayed Off”
Possibly heating-
up phase until the
temperature set-
point is reached
Control to the
temperature set-point
---
Rotation speed according
to fan speed set-point
Timer running
Control to the
temperature set-point
---
Rotation speed according
to fan speed set-point
After the timer
expired
Off ---
Rotation speed according
to setting of timer function
Timer function “Delayed On”
Timer running
Off ---
Rotation speed according
to setting of timer function
After the timer
expired
Control to the
temperature set-point
---
Rotation speed according
to fan speed set-point
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