30
Function description
Heating circuit control
(cont.)
Quick setback:
The set room temperature must be reduced by a minimum
of 2 K by:
Changing from central heating with normal temperature
to central heating with reduced temperature
Shutdown optimization
Quick setback will stop when the set room temperature has
been reached.
Heating circuit pump logic (economy circuit)
The heating circuit pump is switched OFF (setpoint supply
temperature set to 0ºC / 32ºF), when the outdoor
temperature exceeds the value selected via coding address
A5.
Extended economy circuit
The heating circuit pump is switched OFF, and the desired
supply temperature is set to 0ºC / 32ºF, if
the outdoor temperature exceeds the value selected via
coding address A6
the set room temperature is reduced via coding address
A9
the mixing valve has been closed for 12 minutes (mixing
valve economy function, coding address A7)
Slab curing function
Please note!
Four different temperature profiles can be selected for
curing the slab.These profiles are activated via coding
address F1.
When the slab curing function is activated, the heating
circuit pump of the mixing valve circuit is switched ON, and
the supply temperature will be held at the selected profile.
After completion (30 days), the mixing valve circuit will
again be regulated automatically via the set parameters.
System dynamics - mixing valve circuit
You can influence the control characteristics of the mixing
valve via coding address C4.
Underfloor heating
An additional temperature sensor can be connected to
achieve an optimum underfloor heating system. The control
unit calculates a setpoint return temperature. Changes are
implemented, if the actual return temperature deviates from
the desired return temperature.
The temperature differential may be changed via coding
address C7.
When changing from central heating with reduced
temperature to central heating with normal temperature, the
setpoint supply temperature can be raised by 20% for one
hour via coding address C9 : 1.
Freeze-up protection
When the outdoor temperature falls below +1ºC / 34ºF, a
supply temperature of 10ºC / 50ºF will be safe guarded. For
changes see coding address A3, variable frost limit.
5285 967 v1.2
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