©
HDG Bavaria GmbH 07/2008
HDG Compact 99 - 200 - Version 1 - en
6 Using the heating system – ON/OFF menu
81
S
ELECTING
AND
SETTING
BOILER
ACTIVATION
In boiler activation mode, there are various ways of switching the
heating system on and off.
•
Accumulator temperature sensor
– In this version, the heating system is switched on and off
through two accumulator temperature sensors. After falling
below the preset temperature at the “Acc. top” sensor, the
boiler is started. After exceeding the preset temperature at the
“Acc. bottom” sensor, the boiler is switched off.
✎
See section “6.7 °C/QUANTITY menu” in this chapter.
•
Accumulator and external
– In this version, the heating system is switched on and off if the
accumulator temperature sensor has enabled this and there is
a simultaneous external demand.
•
Accumulator or external
– In this version, the heating system is switched on and off if the
accumulator temperature sensor has enabled this or there is a
simultaneous external demand.
•
On
– In this version, the heating system is switched on and off
through the boiler supply temperature sensor. The accumu-
lator temperature sensors are ignored.
•
Thermostat
– In this version, the heating system is switched off through the
boiler supply temperature sensor and switched on through the
accumulator thermostat.
•
External
– In this version, the heating system is switched on and off
through an external controller. Observe the terminal connec-
tion points on the circuit diagram in the control cabinet.
✎
See “Procedure” in this section.
A
CTIVATING
OR
DEACTIVATING
AUTOMATIC
IGNITION
The automatic ignition function can be switched off, thus activating
the function for sustaining the embers.
✎
See “Procedure” in this section.
The standard setting for systems with accumulators is
Acc.
temp. sensor
.
The standard setting is
On.
Sustaining the embers is only performed in emergency operation!
