ENGLISH
29
To better understand the LED warning lights, please refer to the following table:
STATUS
GREEN LED
RED LED
SELECTOR
OPERATING STATUS
Off
Flashing
ON 1 SEC
OFF 5 SECS
Off
0
Appliance off:
water cannot be heated
On
Flashing
ON 1 SEC
OFF 5 SECS
Off
1
Appliance on:
waiting for a request
On
Remains on
Off
1
The appliance is heating water
On
Off
On
1
Appliance blocked:
fl
ame block
On
Off
Flashing
ON 0.5 SEC
OFF 0.5 SECS
1
Appliance blocked:
limit thermostat tripped
On
Flashing
ON 0.5 SEC
OFF 0.5 SECS
Off
1
Appliance blocked:
fl
ue gas pressure switch not commutating
On
Flashing
ON 0.5 SEC
OFF 0.5 SECS
Flashing
ON 0.5 SEC
OFF 0.5 SECS
1
Appliance blocked:
temperature probe anomaly
4.7 Using the appliance
- Make sure that the gas valve and all water taps are shut off.
- Turn on the gas meter/LPG cylinder valve.
- Turn on the valve immediately before the appliance on the gas inlet pipe.
- Ensure that the appliance is receiving power (check the phase, neutral
and earth wires).
- When the appliance is powered the green LED (
C
)
fl
ashes on for 1 sec-
ond and remains off for 5 seconds; turn the dial (
A
) to the “I” position: the
green LED will
fl
ash with equal frequency. Turning on the hot water dis-
pensing tap starts the circuit board ignition sequence once a
fl
ame has
been detected; the green LED (
C
) will switch from
fl
ashing to remaining
on. When the tap is shut off, the appliance will switch to stand-by mode
and the green LED (
C
) will
fl
ash to show that the appliance is ready for
further withdrawals.
- Should the burner not ignite within 10 seconds, the red LED (
D
) will il-
luminate. To resume operation, turn the dial (
A
) manually to the “O” posi-
tion and then the “I” position.
Should the warning light continue to come on, please seek assistance
from a specialist technician at our Technical Support Centre.
Should the main burner accidently be switched off during normal op-
eration, try turning on once again.
If the appliance does not begin operating again within 10 seconds,
the red LED (
D
) will light up.
- Should the electricity supply be interrupted accidentally, the solenoid
valves will intercept the gas
fl
ow; when power is restored, the ignition
sequence is repeated.
- The air pressure switch monitors correct evacuation of the products of
combustion and intake of the combustion air.
In case of anomalies in the inlet and outlet pipes, the pressure switch stops
the
fl
ow of gas to the main burner. Once the anomaly has been recti
fi
ed, the
appliance resumes normal operation.
USING THE WATER TEMPERATURE CONTROL POTENTIOMETER
Turn the dial (
B
) to select the hot water temperature requested.
The requested temperature can be provided with a tolerance of ±2°C with
respect to the value shown in the graph.
WATER OVER-TEMPERATURE CONTROL DEVICE
The appliance is
fi
tted with a device which monitors the temperature of
the water as it leaves the heat exchanger. The device consists of a safety
thermostat which interrupts appliance operation by intercepting the
fl
ow of
gas to the main burner when the water
fl
owing into it exceeds a preset
temperature.
Should the device be activated, the appliance will not work. The red warning
light (
D
) will
fl
ash at intervals of 0.5 seconds.
To resume operation, turn the dial (
A
) manually to the “O” position and then
the “I” position.
Should the device be activated frequently, please seek assistance from a
quali
fi
ed professional at our Technical Support Centre.
If there is a chance that the temperature in the area where the appliance is
installed may fall below zero, drain the water from the appliance.
To do so, shut off the cold water supply tap and turn on the user hot and
cold water taps.
