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4. Functions and options
Outdoor temperature sensor:
Arrangement/Heat. circuit/hc/Expert/Sen. outdoor
adjustment range: 1 ... 10
factory setting: sensor 7
Adjustment channel for allocating the outdoor temperature sensor.
The default is sensor 7 – this can be reallocated if needed. A sensor which is already in use can be allocated
without influencing its original function in the system.
Note:
If additional external modules HKM are used, only 1
outdoor temperature sensor is required. In order to
ensure that all heating circuits use the same outdoor
temperature, adjust to sensor 13.
Afterheating
Arrangement/Heat. circuit/hc/Expert/aft.-heat
selection: „None“, „Therm.“, „Store“
factory setting: „None“
Arrangement/Heat. circuit/hc/Expert/DT ah on
adjustment range: -15,0 ... 49,5 K
factory setting: 2,0 K
Arrangement/Heat. circuit/hc/Expert/DT ah off
adjustment range: -14,5 ... 50,0 K
factory setting: 8,0 K
The set flow temperature is compared with the temperature at one or two store (buffer) reference sensors
(differential control). If this temperature differential is to
small (DTHon), afterheating will be activated. It will be
switched off, if the differential (DTHoff) between store
and set flow temperature is large enough.
Select the after-heating type via the parameter “Aft.Heat.“ (“None“, “Therm.“, or “Store“).
If “None“ is selected, no afterheating will be carried
out.
If “Therm.“ is selected, the set flow temperature is compared with a store reference sensor.
If “Store“ is selected, the comparison is made with 2
reference sensors. The switching conditions to both
reference sensors have to be fulfilled.
Sensor 1 store
Arrangement/Heat. circuit/hc/Expert/S1 Store
adjustment range: 1 ... 10
factory setting: 4
With this parameter, the 1st reference sensor for heating
circuit afterheating can be selected.
Sensor 2 store
Arrangement/Heat. circuit/hc/Expert/S2 store
adjustment range: 1 ... 10
factory setting: 5
With this parameter, the 2nd reference sensor can be
selected for store-dependent afterheating.