©
HDG Bavaria GmbH 07/2008
HDG Compact 99 - 200 - Version 1 - en
3 Mode of operation – Functional description
23
C
ONTROL
MODES
You can choose between four control modes:
•
Fixed value
:
– Constant feed rate and constant combustion air flow-rate
(even in emergency operation)
•
Combustion control:
– Constant, specified combustion chamber temperature and op-
timal combustion through modification of primary and secon-
dary air and fuel quantity
– No output regulation
– Preferred method of operation with buffer tank
•
Control of combustion and power:
– Output supplied is adjusted to heat used with optimised com-
bustion
– Operation without accumulator
•
Oil burner
– An oil burner is also fitted to the boiler.
•
Log wood:
– Only suitable for emergency operation