2
Fig. 1
BOILER STATUS LED
Green LED Boiler is working/responding to a heating/hot water request
Red LED Boiler has identied a fault and has failed-safe. Refer to instructions on how to reset
Yellow LED Service operation
DHW TEMPERATURE SELECTOR
Move the selector clockwise to increase the hot water outlet temperature, or counter-clockwise to reduce the temperature
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
DHW
TEMPERATURE
SELECTOR
YELLOW LED
Hot water only - Select this position if you want the boiler
to supply hot water only (no heating)
Hot water temperature selector: move the selector
clockwise to increase the heating outlet temperature,
or counter-clockwise to reduce the temperature (range:
37°C-60°C)
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 5 and 7.
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 efcient operation of the appliance
is 0.5 BAR. Should the pressure fall below 0.5 BAR, the
boiler may lockout.
correct
pressure
value
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