Riello Start Aqua Condens 25/60 BIS, Installer And User Manual

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Start Aqua Condens 25/60 BIS
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C - Commissioning
- The boiler should be started up for the first time by the Technical
Assistance Centre after which the boiler will be able to operate
automatically. It may, however, be necessary to restore boiler op-
eration without contacting the Technical Centre: for example after
a lengthy period of absence.
In such cases, the following checks and operations must be carried
out:
- Make sure the fuel and water taps of the heating system and the
domestic water system are open.
- Check the operating condition of the consumption water filtering
and/or treatment appliances.
- On the digital display, check that the pressure of the cold water
circuit is between 1 bar and 1.5 bar
- Adjust the ambient temperature thermostat to the desired temper-
ature (~20°C) or, if the system is equipped with a programmable
thermostat or timer, ensure that the thermostat or timer is "active"
and set correctly (~20°C)
- Each time the boiler is electrically powered the display shows a
series of information, then the boiler begins an automatic venting
cycle that lasts about 2 minutes
- The display shows the symbol .
Turn the mode selector to the required position:
Winter mode
By turning the function selector to within the adjustment range, the
boiler produces domestic hot water and heating water. The boiler
lights automatically in response to a heat request.
WINTER MODE
The digital display indicates the heating water temperature. The
boiler lights automatically in response to a request for domestic hot
water. The display indicates the domestic hot water temperature.
HEATING WATER
TEMPERATURE
DELIVERY
TEMPERATURE
Summer
By turning the selector to the summer symbol the standard func-
tion of just domestic hot water is activated. The boiler lights auto-
matically in response to a request for domestic hot water. The digital
display indicates the delivery temperature.
SUMMER MODE
Heating Temperature Control function (C.T.R.)
Turn the heating water temperature selector into sector highlight-
ed with white markers to activate the C.T.R self-adjusting system:
depending on the temperature set on the ambient thermostat and
the time taken to reach it, the boiler automatically varies the heating
water temperature by reducing operating time, thereby achieving in-
creased comfort and energy savings.
C.T.R. MODE
D - Adjusting the heating temperature
To adjust the heating water temperature, turn the mode selector to
within the adjustment range (turn clockwise to increase the value and
anticlockwise to reduce the value).
- +
Depending on the type of system, the most suitable temperature
range can be pre-selected:
- standard systems 40-80 °C
- floor installations 20-45°C.