Ariston GENUS 27 PLUS Installation Instructions Manual page 50

B
A
UT008Ab
C
UT008Ac
I
I
L
UT008Aa
C
UT008Ac
H
UT008Ad
403
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.
WINTER AND SUMMER OPERATING MODES
The boiler is fitted with a selector knob "C" which allows you to switch
between winter <
> operating modes and vice versa. When the knob is set to <
>, the boiler can 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 <
heating system and only provides hot water for domestic use (when
needed).
TURNING ON THE CENTRAL HEATING
Installation without a room thermostat :
- Turn on the power supply to the boiler by pressing the
On/Off switch "L"; the green L.E.D. "I" will then turn on;
- Turn the "C" selector knob to <
domestic hot water is produced);
- Regulate the temperature of the water in the boiler by turning the "H"
knob. The temperature can vary between 42°C and about 82°C;
- Check the boiler temperature on the thermometer with the yellow
L.E.D.s "F". With this type of installation, the ambient temperature
does not influence the operation of the boiler and the circulation
pump always remains in operation.
F
°C
40 50 60 70 80
> and summer <
> or <
UT008Ae
> and also heating only <
>, the boiler cuts out the
> (in this position no
5