Viessmann Cascade control unit Installation, Operating And Service Instructions page 18

Functions
Operating conditions
Time switch
Preconditions: "Time switch Yes" must be configured (see page 12).
In the time switch program, two different switching periods can be set for
each weekday.
Each switching period requires the input of a switch-on and a switch-off point.
Within the switching period, the control unit operates in standard mode;
outside the period it operates in reduced mode.
Time switch (multi-boiler control unit)
Tu 08:00 16:00
20:00 22:00
In the "Operating details" menu (see page 15) you can scan whether the
control unit is set to "Standard mode" or "Reduced mode" on account of the
time switch program.
Holiday program
Preconditions: "Holiday mode Yes" must be configured (see page 12).
Eight different holiday periods with start and end times may be set up in the
holiday program.
Holiday program (multi-boiler control unit)
1: 16 07 2003
up to 15 08 2003
In the "Operating details" menu (see page 15) you can scan whether the
control unit is set to "Time program holiday mode".
18
(cont.)
Example:
For Tuesday, the switching periods 8 to 16 and 20
to 22 hrs standard mode have been set up.
The holiday period begins on 16.07.03 and ends
on 15.08.03.
Please note:
Set room temperatures during the holiday period
can be adjusted in the "Set values" menu (see
page 16).