Ariston CLAS HE SYSTEM 18 - AUTO Function

33
commissioning
AUTO function
This is a function which enables the boiler to automatically adapt
its operation routine (the temperature of the heating elements) in
line with the outdoor conditions, in order to achieve and maintain
the requested room temperature conditions.
Depending on the peripheral units connected and the number
of zones controlled, the boiler adjusts its ow temperature
automatically.
The various corresponding parameters should therefore be set
(see adjustments menu).
To activate the function, press the AutO button.
Example 1:
single zOne sYstem (high-tempeRAtuRe) with On/Off ROOm theRmOstAt:
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- Select 04 = Basic temperature adjustment
2 44 - Boost Time (optional)
The wait time for the ow temperature increase in steps of
4°C may be set. The value varies according to the type of
system and installation.
If the Boost Time value = 00 the function is not activated.
Example 2:
single zOne sYstem (high-tempeRAtuRe) with On/Off ROOm theRmOstAt +
OutdOOR sensOR:
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- Select 01 = outdoor sensor only
4 22 - Temperature adjustment curve selection
- Select the relevant curve according to the type of
system, installation, heat insulation used in the building,
etc.
4 23 - Perform a parallel curve shift if necessary, increasing or
decreasing the set-point temperature (this may also be
modied by the user, using the heating temperature
adjustment knob, which, with the Auto function
activated, is used to shift the curve in a parallel manner).
Example 3:
single zOne sYstem (high-tempeRAtuRe) with RemOCOn RemOte COntROl +
OutdOOR sensOR
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- select 0 = outdoor sensor + room sensor
4 22 - Temperature adjustment curve selection
- Select the relevant curve according to the type of
system, installation, heat insulation used in the building,
etc
4 23 - Perform a parallel curve shift if necessary, increasing or
decreasing the set-point temperature. (This may also be
changed by the user by the encoder which, with the Auto
function activated, is used to shift the curve in a parallel
manner.)
4 24 - Inuence of room sensor
- used to adjust the inuence the room temperature has
on the calculation of the set-point ow temperature (20 =
maximum, 0 = minimum).
Note: See page 33 for details on accessing menus.