105
Adjustment channel for allocating the outdoor tempe-
rature sensor.
The default is sensor 7 – this can be reallocated if nee-
ded. A sensor which is already in use can be allocated
without influencing its original function in the system.
Outdoor temperature sensor:
Arrangement/Heat. circuit/hc/Expert/Sen. out-
door
adjustment range: 1 ... 10
factory setting: sensor 7
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.
The set flow temperature is compared with the tempe-
rature 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.
Afterheating
Arrangement/Heat. circuit/hc/Expert/aft.-heat
selection: „None“, „Therm.“, „Store“
factory setting: „None“
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 com-
pared 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.
With this parameter, the 1
st
reference sensor for heating
circuit afterheating can be selected.
Sensor 1 store
Arrangement/Heat. circuit/hc/Expert/S1 Store
adjustment range: 1 ... 10
factory setting: 4
With this parameter, the 2
nd
reference sensor can be
selected for store-dependent afterheating.
Sensor 2 store
Arrangement/Heat. circuit/hc/Expert/S2 store
adjustment range: 1 ... 10
factory setting: 5
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
4. Functions and options
Select the relay by means of which afterheating is de-
manded (DSE or heating circuit module).
Allocate the minimum runtime of the relay.
Afterheating demand
Arrangement/Heat. circuit/hc/Expert/rel. ahoff
selection: „CM“, „HC1“, „HC2“, „HC3“
factory setting: „CM“
Arrangement/Heat. circuit/hc/Expert/ah-Min.
adjustment range: 0 ... 90 min
factory setting: 0 min
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