15
Starting up
1. check that the appliance's general gas shut-off tap is open and that the boiler is supplied with power.
2. check that there is sufficient pressure in the heating circuit: pressure gauge needle at least 1.2 bar with 1.7 bar at max. cold
3. open gas inlet tap
33
(fig. 21)
Your boiler is now ready to operate.
Important
When the appliance is operated after a prolonged period of inactivity, the presence of air in the gas flues may hinder the first
attempts at igniting the gas.
See § 20
Operating faults
To obtain heating and hot water (system plus):
Press ON/OFF button
20
; the button lights up
green
.
- turn knob
21
to preheat the sanitary tank (compy system plus). This button allows you to adjust the hot water
temperature. While the tank is pre-heating, LEDs
23
light up 2 by 2 in sequence.
- turn knob
22
to authorise heating ignition. This knob allows you to adjust the water temperature in the heating circuit
according to seasonal requirements. Indicator
23
displays the temperature.
• Turn knob
22
:
- towards Max. in cold weather
- towards Min in mild weather
Furthermore, if your home is fitted with a room thermostat, set it to the desired indoor temperature.
N.B.
Orange indicator light
24
lights up every time the burner ignites
Stopping the heating
- Set knob
22
to the
OFF
position. The boiler then produces only hot water.
Setting to pilot
- Set knobs
21
and
22
to the
OFF
position, leaving button
20
(fig. 20) lit. The function remains active unless the boiler freezes.
Turn off the boiler completely
- press push button
20
and the light goes out
- turn off the electricity supply to the boiler heater.
- shut off the gas supply by turning tap
33
(fig. 21)
13. Operation
Note:
In certain cases of installation it is possible that, after reheating the tank (system plus), the pipes (and possibly a radiator) may
heat up slightly. To prevent this, simply close heating inlet tap
31
(
fig. 21).
Remember to re-open it at the start of the heating season, when you switch the heating back on by pressing button
22
(fig. 20)
