12
EU 2 D
English
2.3
Heating Boilers (Fig. 5)
– Remove the cover of the control
panel.
– Remove the dummy panel (b).
– Push the timer (d) from the front
into the opening (a) until it clicks.
– Unscrew the screws of the switch
box cover (e) and remove the cov-
er.
– Route the connection cable (c)
from the rear to the switch box and
connect the plug (i) to the con-
tacts (j) on the main circuit board
(ST 2).
– Replace the switch box cover (e)
and screw on.
– Attach the cover of the control
panel.
. . . . . . . . . . . . . . . . . .
3
Setting
The timer has separate channels for
heating operation (ch 1) and water
heating/comfort mode operation
(ch 2).
Four switching periods (2 channels
with 2 switching periods each) can
be programmed per day.
3.1
Basic Program
The timer has a “built-in” basic pro-
gram for all days. For all four switch-
ing periods this is:
• Start of normal operation:
06.00 hrs.
• Start of reduced operation:
22.00 hrs.
3.2
Operating Elements
and Indicators
3.2.1 Setting Buttons for the
Switching Periods
Each switching period is set with
buttons arranged in pairs with the
●
(normal operation) buttons above
and the
❍
(reduced operation) be-
low.
3.2.2 Program Step Display
• A programmed switching period is
indicated with two vertical bars:
Left: Start of normal operation
Right: Start of reduced operation
• An active switching period is indi-
cated with horizontal lines.
• Deleted switching periods are not
displayed.
Example:
• Period I already completed, II ac-
tive.
Channel 1 operates in normal
mode.
• Period III not active, IV not pro-
grammed.
Channel 2 operates in re-
duced/frost protection mode.
Reduced
operation
Normal
operation
I
II
III
IV
Channel 1 Channel 2
Switching periods
I
II
III
IV
Channel 1 Channel 2
Program step
display
Switching periods
