Installation manual

1.2 First start-up.

Before the first start-up, please check that the system is properly filled with water and that

it has pressure 1 ÷ 1.3 bar, then proceed as follows:

• open the gas valve;

• turn the selector (36) on the only DHW function or on the DHW/CH function;

• Our remote control operation (Optional RC). When the selector is in winter position

and the RC is connected, the temperature potentiometers on the boiler control board

are excluded, and it will appear "EC" (External Control) written on the display. All the

regulations can be carried out by the RC.

• Operation without remote control. With the selector on the DHW position the CH

regulating potentiometer (38) is excluded and the temperature of the DHW is regulated

by the DHW potentiometer (37):with the selector on the DHW/CH position the CH

regulating potentiometer is enabled to regulate the temperature in the radiators (38),

and it also keeps the DHW potentiometer functioning. Turning it clockwise makes the

temperature increase, while turning anticlockwise it decreases.

From this moment the boiler is ready to operate automatically. A led (fig.4 pos.44) on the

control panel shows that the burner is on. When the CH or DHW water potentiometers are

turned, the display indicates the temperature chosen and at the same time LED’s (50) on

the display blink according to which potentiometer is operating.

External sensor (optional)

The external temperature sensor adjusts the temperature of the boiler according to the

external temperature. Adjustment involves the possibility of choosing from curves that go

from 0.5 to 6 with 0.1 steps. With advice from the installer or heat engineer who designed

the system, the curve that behaves as closely as possible to the behaviour required in the

apartment should be selected.

The curve is adjusted:

a) on the trimmer (41) if you have not purchased the remote control (optional) which

adjusts the curve by ± 5°C and can therefore be used to easily optimise thermal

comfort. The basic operating adjustment of the curve is effected by the

installer/support service

b) Using the remote control if present see the following steps: