2
Fig. 1
BOILER STATUS LED
Green LED
Boiler is working/responding to a heating/hot water request
Red LED
Boiler has identified a fault and has failed-safe. Refer to instructions on how to reset
Yellow LED
Service operation
PRESSURE GAUGE
Ensure the system pressure is set correctly (minimum 0.5-bar)
MODE SELECTOR SWITCH/HEATING TEMPERATURE SELECTOR
Mode selector switch:
MODE
SELECTOR
SWITCH
RED LED
GREEN LED
HEATING
TEMPERATURE
SELECTOR
HYDROMETRE
YELLOW LED
Boiler at OFF/standby
- Select this position when you
want the boiler to be switched off for short periods (days)
or if the boiler requires to be reset
Heating & hot water
- Select this position when you
want the boiler to respond to a heating and hot water
request from the time-clock programmer
Heating temperature selector
: move the selector
clockwise to increase the heating outlet temperature, or
counter-clockwise to reduce the temperature (range:
40°C-80°C for standard central heating).
The automatic temperature control function (SARA) is
set within position 4 and 6.
Pressure gauge
shows the current pressure of your
heating system, the gauge should be set between 1 and
1.5 BAR. When the appliance is operating the gauge may
rise or fall slightly, this is quite normal. The minimum
permissible level for the safe and efficient operation of the
appliance is 0.5 BAR. Should the pressure fall below 0.5
BAR, the boiler may lockout.
correct
pressure
value
