6.7 Control options
Heating operation with special level
This function is also effective in the Summer setting.
▶
Set parameter
17
at
2
.
When contact H2 is closed, the system heats up to the temperature level preset in
parameter
18
. Higher target values of additional heating circuits will be taken into
consideration. DHW loading usually takes precedence. If the contact is open the
temperature is stipulated by the existing control variation.
When the heating operation with special level is activated,
Sn
and the current flow
temperature will be displayed.
Dynamic burner rapid cycle interlock
The dynamic burner rapid cycle interlock prevents the burner from starting too often.
It functions depending on certain boiler temperatures and cannot be deactivated. It
is independent of parameter
34
.
Installation and operating instruction
Gas condensing boiler WTC-GB 90-A
6 Operation
83266502 • 1/2010-08 • La
44-95
