Filter
Top Products
Hydraulic Components SDC / DHC
236 EN2H-0221GE51 R0808
Grouping for base and peak loads (ANF118-V2.2
specifications)
High quality, expensive condensing boilers are used for the base
load, especially with gas systems. During cold months, low-
temperature boilers are used for covering peak loads. It is
necessary that an activated stage reversal only affect the base
load boiler here. The peak-load boilers are excluded from the
stage reversal.
The configuration defines which peak load heat generator is the
first one (all heat generators with addresses greater than or equal
to the setting).
The time-based stage reversal (see "Cascading" menu,
parameter 05) only affects the connected base-load boiler
(smaller address setting).
The first peak-load boiler is not switched on until the base-load
boilers are operating at 100%.
If grouping was carried out via the configuration and the peak-
load boiler was in demand, a change of the leading group can be
activated via a parameter. If this parameter is set to ON, the group
of peak-load boilers take over the base load upon demand and
the base-load boilers take over adjustment of the flow
temperature. Further switching of stages is still only active for the
actual base-load boilers.
7.3.12.3.5 Special function characteristics
The heating circuits of the control device in which manual
operation was activated, operate according to the manual
function. The set demand value is forwarded to the energy
management module of cascade control and adjusted to by the
available boiler stages.
This function works as described under "Emission measurement",
with the following extensions:
• The effect on heating circuits is extended to all heating circuits
of the system.
• Enabling of the heat generators (burner) is initiated at the
same devices where emission measurement was activated.
Function
Manual mode
Emission measurement