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Translation from original instructions
5.7 Control panels
This line of units can be controlled with two electronic microprocessor controllers: a base controller (V5+) and an advanced
controller (V6).
The next sections describe the basic operations which both controllers perform, including unit start and stop, operating
mode switching from cooling to heating and vice versa (in units fitted with a heat pump), and setpoint editing.
For the other operations, refer to the manual of the control that is an integral part of the documentation of the unit.
5.7.1 Base controller (V5+)
The following instructions are for the main screen of the control, which is displayed in normal operating conditions.
5.7.1.1
Switching the unit on/off
Normally, the units are shipped with standard programming for switching on and off from the keypad. The following in
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structions refer to this configuration.
Go to the controller display (Fig. B.2) and press the “ON/OFF” switch to switch the unit ON. The display shows the setpoint
and the controlled temperature: an icon also appears in the top part of the display indicating the operating mode of the unit.
The unit actually gets started only if the remote ON/OFF digital input is closed.
Press the “ON/OFF” button again to switch the unit OFF: the setpoint, temperature and icons disappear, and this indicates
that the unit is off.
The unit does not switch off instantly after the “ON/OFF” button is pressed. Switch-off occurs according to
the times set in the controller so that safe unit operation is guaranteed.
If time bands have been enabled, the unit switches on/off according to the time bands set in the unit.
5.7.1.2
Operating mode switching
Tap the “Mode” button to switch to a different operating mode and select the desired mode among those featured: heating,
cooling and automatic.
Operating mode switching can only occur if the unit is ON and controlled according to the water temperatu-
re. Operating mode switching in units controlled according to ambient temperature occurs automatically in
function of the ambient temperature.
The configuration of both the unit and system affects the active operating modes.
The timing for operating mode switching is determined by the unit controller in function of the previous ope-
rating mode and the new selected mode.
No effect will be produced by tapping the “Mode” button if the unit is operating in domestic hot water pro
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duction mode.
