Technical data

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To set the correct time rotate the clock by hand until the current time is indicated by the arrow at the top
of the clock.
To operate the boiler according to your selected times, place the grey lever to the position.
To have the boiler permanently ‘ON’, place the grey lever to the ‘I’ position.
To have the boiler permanently ‘OFF’, place the grey lever to the ‘0’ position.
The comfort mode of domestic hot water
Comfort mode means that boiler is kept in pre-heated stage and waiting time for DHW delivery is shorten.
There are two ways of comfort DHW mode available:
Limited - if comfort mode of hot water is required only for limited time.
Open and close a bath tap (On/Off for interval between 2 and 5 seconds). It is automatically recognized
by boiler control unit and primary system water is preheated for immediate hot
water preparation.
Permanent - if comfort mode of hot water is required permanently.
Be sure, the display is in basic mode.
Press button (6).
Comfort LED (10) will light up - comfort mode is ON.
Comfort mode will OFF by next press of button (6) - diode (10) will go out.
Safety lockout
In the event of a safety lockout, the digital display will show ‘F1’.
Reset boiler by pressing the RESET button.
IMPORTANT: If safety lockout occurs frequently, or if any other fault is indicated,
contact your Installer/Service Provider.
DRAINING AND FILLING
CAUTION: The boiler is installed as part of a sealed system which must only be drained and filled by a
competent person.
If the pressure drops to 1 bar the pressure LED on the Bar button starts to flash. The boiler will continue to
work, but the LED warns that pressure in the CH system is on the low limit and CH system must be filled.
To fill the system, open the tap on the filling loop below the boiler. Press the Bar button to read the system
pressure. When the pressure is between 1 and 2 bar, close the tap.
Note: If there is persistent loss of system pressure, you must consult your Installer/Service Provider.
HEATING SAFETY VALVE
CAUTION: A safety valve with a discharge pipe is fitted to this boiler.
The valve MUST NOT BE TOUCHED except by a competent person. If the valve discharges at any time,
switch the boiler off and isolate it from the electrical supply. Contact your Installer/Service Provider.
SERVICING / MAINTENANCE
To ensure the continued efficient and safe operation of the boiler, it is recommended that it is checked and
serviced at regular intervals. The frequency of servicing will depend upon the installation conditions and
usage but, in general, once a year should be enough.
CLEANING
The boiler casing can be cleaned with a damp cloth followed by a dry cloth to polish.
Do not use abrasive or solvent cleaners.
BOILER CASING
CAUTION: Do not remove or adjust the casing in any way, as incorrect fitting may result in faulty operation.
If in doubt, contact your Installer/Service Provider.