Ariston A/23 MFFI User Manual page 8

START-UP PROCEDURE
LIGHTING
Before starting the unit, check the following:
- The water pressure on the pressure gauge "O";
- That the gas cock and the inlet for domestic water are
open.
These models are equipped with electronic ignition which utilises contact
ionisation.
To make the boiler operational, simply press the On/Off switch "L".
The green L.E.D. "I" will then turn on.
At this point the boiler is ready for use, a centralised
electronic control unit will automatically light the main
burner when needed. If the burner does not light within
the pre-set safety time limit, the red "B" L.E.D. will light
up. To reset the ignition system, the reset button "A"
must be pressed. Should the system fail to light a
second time, check to make sure that the gas cock is
open. If the problem persists, contact one of our
Authorised Service Centres for assistance.
8
Supplied By www.heating spares.co Tel. 0161 620 6677
WINTER AND SUMMER OPERATING MODES
I
L
The boiler is fitted with a selector knob "C" which
allows you to switch between winter <
summer <
When the knob is set to <
serve the dual purpose of providing heat and/or hot
water for domestic use.
The supply of hot water for domestic use always
takes precedence over heating. When the knob is
set to <
water for domestic use (when needed).
B
A
> operating modes and vice versa.
>, the boiler can
>, the boiler cuts out the heating system and only provides hot
C
> and
B022