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SFK 28 - RAD - ING - Manuale - 1801.1_V3
1 Protezione antigelo
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1. INSTALLATION
INST
ALLER
1.1.13. ANTI-FREEZE PROTECTION
The water heater is protected against freezing
thanks to the electronic board preparation with
functions that start the burner and heat the
concerned parts when their temperature goes
below the minimum pre-set values, protecting
the water heater up to an external temperature of
-10°C.
The device starts when the hot water temperature
goes below 5 °C, automatically starting the burner
until the water reaches the temperature of 15 °C.
The system starts even if on the display appears
“OFF”, as long as the water heater is connected to
the power (230 V) and gas supply.
For long periods of standby, please empty the
water heater.
If the temperature goes below -10 °C please insert
electrical resistances kit (cod. 82259LP).
