How To Use - Ariston Type C Installation, Servicing And Operating Instructions

2. How to Use

Switching on and filling instructions
1. Check the pressure in the central heating system is above 0.7 bar and below 1.5 bar with the pressure gauge 16 (fig.1),
should it be necessary to re-pressurise the system,ensure the filling loop 45 (fig. 2) is attached, open the filling taps 43 & 44,
the pressure gauge will now start to rise, once the pressure reads 1.0 bar, close the filling taps and disconnect the filling
loop.
2. Check that the gas service tap is opened at the gas meter and the main power is on. Green indicator 26
3. Open the gas tap 39 (fig.2).
4. The boiler is now ready to use.
N : If the boiler is left off for a long time, some air in the gas pipe can hinder the first lighting
OTE
attempts. (please refer to Section 19 Incorrect Function, page 53)
Time setting
You can set the time by using the keys underneath the display.
Press the setting button for more than 5 seconds, the hours will begin to flash. You can now set the correct hour by using the +
and - keys. Pressing the setting button again will make the minutes flash. You can set the minutes by using the + or - buttons.
Pressing the setting button once more will store the set time.
N : T
OTE HIS IS NOT A TIMER FOR
DHW mode
Turn the control knob 29 between min and max. During the adjustment,
flashes.
The flashing goes on for a while after the adjustment, then the display indicates
the time.
When DHW is drawn, the
display indicates the following:
Comfort mode
To activate the comfort mode it is necessary to press the comfort button, this
will be indicated by a yellow light. The comfort mode has priority over any other
heating request.
There are two settings for the comfort mode (they can be adjusted in the
parameters menu, see Section 17 Adjustments and Settings):
1. As soon as DHW is drawn, the secondary heat exchanger is kept warm for
30 mins.
2. As soon as DHW is drawn, the secondary heat exchanger is kept warm
permanently.
When the boiler is operating in 'comfort
mode' the display indicates the following:
Heating mode
Turn the control knob 30 between min and max. During the adjustment
flashes.
The flashing goes on for a while after the adjustment, the display will then
indicate:
- the central heating flow temperature if the room thermostat is calling for heat.
- the time if the room thermostat is OFF.
BURNER ON and output level
The flame digits will increase or decrease depending on the output.
6
CH C
ONTROL
Power ON
O C
PEN LOSED
comfort
Room thermostat request
symbol
Flame digit
Burner ON