2
Fig. 1
PRESSURE GAUGE
Ensure the system pressure is set correctly (minimum 0.5-bar)
MODE SELECTOR SWITCH/HEATING TEMPERATURE SELECTOR
Mode selector switch:
Boiler at OFF/standby
- Select this position when you want the boiler to
be switched off for short periods (days).
Heating & hot water
- Select this position when you want the boiler to re-
spond 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 tem-
perature (range: 40°C-80°C for standard central heating).
The automatic temperature control function (SARA) is set within the blank
bullet points.
MODE SELECTOR SWITCH
HEATING TEMPERATURE SELECTOR
PRESSURE GAUGE
Boiler reset -
Select this position if the boiler requires to be reset.
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 oper-
ating the gauge may rise or fall slightly, this is quite normal. The minimum
permissible level for the safe and effi cient operation of the appliance is
0.5 BAR. Should the pressure fall below 0.5 BAR, the boiler may lockout.
correct
pressure
value
DISPLAY
SARA
function
Содержание Mynute i20
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