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Operation
6 720 617 763 (2008/09)
5.1 Heating and domestic hot water
programmes
5.1.1 General Information
The programmes for heating and hot water ena-
ble you to achieve maximum energy savings while
still enjoying optimum comfort in terms of room
temperature and availability of domestic hot
water. That is achieved, for instance, by deacti-
vating water heating in the periods when nobody
requires domestic hot water.
5.1.2 Weekly programmes
All timer programmes are set up to repeat every
seven days. In the programme memory you can
store 6 switching points for every day in each pro-
gramme, i.e. a total of up to 42 switching points.
To simplify programming, you can set switching
points for groups of days as well as for individual
days.
The following groups of days are offered:
•
All days
•
Mon - Fri
•
Sat + Sun
If, for example, you change and store a switching
point for the option
Mon - Fri
, that change is
simultaneously applied to all days from
Monday
to
Friday
.
5.1.3 Structure of programmes
Programmes for heating and domestic hot water
are always structured in the same way. Up to six
switching points (times) can be specified. A
change of operating mode is specified for each
switching point. The specified operating mode
applies until changed by the next switching point.
Heating programmes
Heating programmes control central heating
operation. There are three modes for heating
operation:
•
Comfort
•
Economy
•
Frost
(Frost protection)
For each of those operating modes, there is a
specified room temperature stored on the
FW 100 heating controller (
Æ
Section 5.4.1,
page 29).
There are a total of three programme spaces (A to
C) available for heating programmes. Each heat-
ing programme contains the switching times for
one week (weekly programme). You can activate
one of the heating programmes for the heating
system.
Domestic hot water programmes
Domestic hot water programmes operate differ-
ently according to the type of hot water system:
•
With combination boilers (boilers which pro-
duce domestic hot water instantaneously on
demand) the hot water programme switches
between the following operating modes:
–
On
: if the Eco button on the boiler is not lit,
domestic hot water is available very quickly
on demand (Comfort mode).
–
Off
: the built-in plate heat exchanger in the
boiler is not kept constantly hot (Eco
mode); as a result energy is saved. In Eco
mode, the hot tap has to be run for a short
while before the water becomes hot.
•
With boilers connected to a hot water cylin-
der, the hot water programme specifies the
desired water temperature (specified temper-
ature).
Having several stored heating pro-
grammes simplifies changing from
one heating programme to another,
e.g. if your job involves periods
when you work different shifts
(night shift/day shift), or for holi-
day periods.
