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
DHW pre-heat function working/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:
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 in-
crease 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 incre-
ase 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 factory disabled.
To enable this function please contact the Vokèra Customer Service.
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
MODE SELECTOR
SWITCH
HEATING
TEMPERATURE
SELECTOR
GREEN
LED
PRESSURE
GAUGE
DHW
TEMPERATURE
SELECTOR
RED
LED
YELLOW
LED
DHW pre-heat function -
Turning the domestic hot water temperatu-
re adjustment knob to the symbol activates the pre-heating function.
Bring the domestic hot water temperature adjustment knob back to the
required position. The activation of this function is indicated with the
yellow led on. This function keeps the water in the domestic hot water
exchanger hot, to reduce standby times when a request is made. To
deactivate the pre-heat function, rotate the domestic hot water tem-
perature adjustment knob back to the symbol. Bring the domestic hot
water temperature adjustment knob back to the required position. This
function cannot be activated when the boiler is OFF: function selector
to OFF position.
