28
We reserve the right to make changes without any prior notice.
Translation from original instructions
5.7.1.2
Changing the operating mode from cooling to heating and vice versa
It is possible to change the operating mode from cooling to heating and vice versa only in units that have this feature. The
change can be made using the display keypad or from digital input.
Unless a specific request is made, the units are shipped programmed for changing from cooling to heating and vice versa
from the keypad.
In units where the change of operation is from the keypad, the required operation is activated using the same buttons
or used for switching on and switching off as described above.
If the ON/OFF function is enabled from digital input, you still use buttons
and to activate or deactivate the two fun-
ctionalities. In any case, to change functionality, the active one must be deactivated, going through switching off of the unit.
The change of operation from heating to cooling and vice versa from digital input, in units that have this
function, is enabled from the factory only when requested.
In units where the change of operation is from digital input, when the input is closed, the unit can be started in heating mode
only, or when it is open, the unit can be started in cooling mode only.
In this condition too, it is possible to use buttons
and only to enable or disable the unit in the function envisaged by
the digital input.
5.7.1.3
Displaying and changing the set point
With the parametric control with a single access, the set temperature set point values can be displayed and changed within
factory-set limits. The sequence of operations to carry out is as follows:
- press, for 5 seconds, button
to access the parameter loop for programming;
- with pressing twice on button to reach the group of parameters "r";
- confirm with button
in order to read the current value of the set temperature set point;
- to decrease the value, use button ; to increase it, use button
;
- confirm the value by again pressing button
;
- repeatedly press button to exit the group of parameters "r" and the programming loop.
For units that also provide heating, it is possible to access and change the relevant operating set point. The sequence of
operations to carry out is as follows:
- repeat the procedure described for accessing and changing the cooling mode operation set point until parameter "r1"
appears;
- press twice on button to make parameter "r3" appear, which corresponds to the set point for heating mode operation;
- press button
and with
and to access and change it;
- to confirm the set value and exit the parameter loop, the sequence of operations to carry out is the same as the one
described above regarding the cooling mode operation set point.
5.7.2 Remote terminal
The remote terminal is available as accessory.
The remote terminal is physically different from the one on the unit but the same symbols are present on its buttons and
therefore it is used in the same way as the terminal on the unit for the described functions.
For the connections of the remote terminal, see the wiring diagram.