Robur GAHP Line AR Series, Installation, Use And Maintenance Manual

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End user section
Ed. 2014-08
15
SECTION 2 END USER
In this section you will find all the indications necessary for the activation, regulation and
control of operation of the appliance via the board present in the electrical panel.
2.1 ACTIVATION (AND DEACTIVATION) OF THE APPLIANCE
Efficient operation and long life of the appliance depend largely on correct use!
If the appliance is connected to a Direct Digital Controller (DDC) and the DDC is in
controller mode, activation and control of the appliance will occur exclusively by
operating the DDC. In this case, refer to the manual supplied with it.
If the appliance is not connected to a DDC, it may be activated and deactivated only by
means of the on/off commands provided by the electrical installation technician.
According to requirements, these on/off commands may be:
-
An on/off switch (CS, consent switch) for activation and deactivation of the
appliance. This switch may be an on/off button, an ambient thermostat, a
programmable timer, or one or more clean contacts controlled by another process. For
details about the type of on/off command installed, contact the plant’s electrical
installation technician.
- A summer/winter selector switch (W/Y) , for selecting the operating mode of the
appliance (cooling or heating).
Activation: the on/off commands are essential.
Do not switch the appliance on or off by connecting it to or disconnecting it from the
power supply directly, as this may be a source of danger and in any case damage
the appliance or the plants connected to it.
Before activating the appliance, check that:
- the gas valve is open;
- the appliance is powered electrically: the general electrical switch must be in the “ON”
position;
- the installation technician has ensured that the hydraulic circuit is supplied in the
correct conditions.
If these conditions are satisfied, it is possible to proceed with activation.
ACTIVATION
Select the operating mode required (cooling or heating) by means of the summer/winter
selector switch, if the mode desired is not already selected.
Switch on the appliance by means of the on/off command (placing it in the "ON" position).