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11. Pre-heat function
When changing from Economy to Comfort temperature in AUTO mode, your thermostat will anticipate the rise in
temperature so that it reaches the right temperature at the scheduled time.
Example (see opposite): 6:30 am, Economy period, currently pre-heating to reach the temperature of 20°C
at 8:00 am.
The pre-heating function's speed and accuracy is based on the heater type used and its heating inertia.
11.1 Troubleshooting / Frequently Asked Questions (FAQ)
• The thermostat is on despite the programme not calling for it.
You must have turned on the pre-heat function. If so, then it is normal for your thermostat to anticipate the
temperature rise and it has started pre-heating to get to the Comfort temperature at the desired time
(see § Pre-heat function).
• The thermostat turns off though the requested temperature has not yet been reached.
Your thermostat uses a kind of control that anticipates the inertia in temperature variations in order to calculate
energy needs as accurately as possible and provide maximum comfort.
On the other hand, anticipating a drop in temperature, the heating may turn on once the desired temperature has
been reached.
• The thermostat displays "Conf"
You have activated "Comfort temperature control" via your radiator (menu 1-08).
• The thermostat displays the symbol «
The date of the next boiler maintenance is approaching (< 30 days).
In order to find out the number of days remaining prior to maintenance, press the i button several times (see §
"Information button").
Pre-heat in progress is shown by the flashing
Comfort signal.
»
symbol and the
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