31
Operating program
The operating program can only be set at the control
unit of the heat generator.
The operating program specifies the following, sepa-
rately for central heating and DHW heating:
■
Central heating and DHW heating
Or
■
Central heating only, no DHW heating
Or
■
DHW heating only, no central heating
Or
■
Only frost protection for the boiler and the DHW cyl-
inder is active.
No central heating, no DHW heating
Operating status
In the
"Heating"
operating program, the operating sta-
tus changes from "Standard heating mode" or "Com-
fort heating mode" to the "Reduced heating mode"
operating status and vice versa. The times at which
the operating status is changed over are defined when
you set the time program.
Screed drying
Your contractor can activate this function for screed
drying, for example in your new build or extension.
This means your screed is dried in line with a fixed
time program (temperature/time profile) that is appro-
priate for the building materials used.
Screed drying affects all heating circuits:
■
All rooms are heated according to the temperature/
time profile.
Your settings for central heating have no effect on
the duration of screed drying (max. 32 days).
■
DHW heating is enabled.
Underfloor heating system
Underfloor heating systems are slow, low temperature
heating systems and respond only very slowly to short
term temperature changes.
Heating with reduced room temperature at night there-
fore does not result in any significant energy savings.
Heating mode
Standard heating mode or comfort heating mode
For periods when you will be at home during the day,
heat your rooms to the standard room temperature or
comfort room temperature. You determine the periods
(time phases) with the
"Indoor environment"
time
program.
Reduced heating mode
For periods when you will be absent or during the
night, heat your rooms to the reduced room tempera-
ture. Set the periods using the time program for central
heating. With underfloor heating systems, reduced
heating mode only yields limited energy savings (see
"Underfloor heating system").
Weather-compensated heating mode
In weather-compensated mode, the flow temperature
is controlled according to the outside temperature.
More heat is made available at a lower outside temper-
ature than at a higher one.
The outside temperature is captured and transmitted to
the control unit by a sensor. The sensor is fitted to the
exterior of the building.
Appendix
Terminology
(cont.)
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