19
en
Installation
Commissioning
Settings
Tr
oubleshooting
Data comm
unication
A common room thermostat with a potential-free output can be used alternatively.
In this case, Switch must be selected in the Type channel.
When the Timer option is activated, a timer is indicated in which time frames for
the function can be adjusted. During these time frames, the adjusted room temper-
ature decreases by the Correction value.
Note:
For information on timer adjustment see 9.
Relay 4 is allocated to the room thermostat. The relay will switch on when the
temperature falls below the adjusted room temperature. This way, the room in
question can be excluded from the heating circuit via a valve as long as the desired
room temperature is reached.
With the parameter RTH, the room thermostat can be temporarily deactivated or
re-activated respectively. All adjustments remain stored.
The Return limit value option monitors the return temperature. If it exceeds
the value T-ret., the flow temperature will be decreased in order to avaid a too
high return temperature. The parameter Factor can be used for defining to which
extend the deviation may influence the correction of the flow temperature. The
higher the factor, the higher the flow correction.
Correction timer
With the Timer, the day / night operation can be adjusted. During day phases, the
set flow temperature is increased by the adjusted Day correction value, during
night phases it is decreased by the Night correction value (night setback).
The parameter Mode is used for selecting between the following correction modes:
Day / night: A reduced set flow temperature (night correction) is used during night
operation.
Day / off: The heating circuit switches off during night operation.
Outdoor / off: The heating circuit switches off during night operation. If the tem-
perature falls below the adjusted limit temperature at the allocated outdoor tem-
perature sensor, the controller changes to the reduced heating mode.
The Timer HC parameter can be used for adjusting the time frames for day
operation.
Содержание DeltaTherm HT
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