6 Using the heating system – ON/OFF menu
80
HDG Compact 99 - 200 - Version 1 - en
©
HDG Bavaria GmbH 07/2008
S
ETTING
THE
CONTROL
,
BOILER
ACTIVATION
,
IGNITION
AND
L
AMBDA
S
TOP
S
ETTING
THE
CONTROL
MODES
The heating system can be operated in different control modes.
These are:
•
Fixed value
– In this version, the combustion is not optimised and there is no
output regulation. The combustion air supply and fuel quantity
is fixedly set and remains unchanged.
•
Combustion control
– In this version the combustion is optimised. The primary and
secondary air supplies and the fuel quantity are adapted auto-
matically within a specified range of combustion. There is no
output regulation. (Standard setting for use of accumulator).
•
Control of combustion and output
– In addition to the combustion control, this version also regu-
lates the output of the heating system for the demand.
•
Oil burner
– In this version, an oil burner must be installed in the boiler. This
control mode switches off all units except the return pump and
return mixing valve. If the regulating thermostat on the boiler
has enabled this, the oil burner and the return mixing valve re-
gulate according to the set return temperature. If not enabled,
the return mixing valve closes and only opens briefly in the
case of a higher temperature.
•
Log wood
– This mode is suitable only for
emergency operation
. The com-
bustion air fans are switched on or off according to the boiler
temperature.
✎
See “Procedure” in this section.
Setting
1-05
Control
: Fixed value
Activate boiler
: Accumulator tempera-
ture sensor
Ignition
: On
Lambda stop
: On
FIELD
CHOOSE
END
The standard setting for systems with accumulators is
Combus-
tion control
.
