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2.4 USE OF THE WATER HEATER.
Ignition (Fig. 2-1). Before ignition, check that
the DHW inlet valve is open.
- Open the gas cock upstream from the water
heater.
- Press the button (1) until the display switches
on; pressing the button passes cyclically from
the "off ", "stand-by" and "on" state of the ap-
pliance.
- Regulate the DHW temperature according to
requirements by turning the selector (3).
Turning in a clockwise direction the tempera-
ture increases and in an anti-clockwise direc-
tion it decreases.
Error
Anomaly signalled
Code
01
No ignition block
Safety thermostat
02
block (over-temper-
ature)
Domestic hot water
06
probe anomaly
08
Maximum N° of reset
Flue pressure switch
11
failure
Domestic hot water
12
inlet probe anomaly
Parasite flame block
20
Push button control
24
panel anomaly
Low power supply
37
voltage
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Technical After-Sales Service).
2.6 INFORMATION MENU.
Pressing the button (2) for 8 seconds, the "In-
formation menu" is activated, which allows to
display some water heater functioning param-
eters. To scroll the various parameters, press the
button (2), to exit the menu, press the button (1)
or wait for 15 minutes.
List of parameters.
N°
Description
parameter
Displays the instant DHW flow
d1
rate (l/min)
Displays the temperature of the
d2
inlet water on the water heater
Displays the temperature of
d3
the outlet water from the water
heater
Displays the temperature set
d4
on the water heater via the
temperature selector (3)
From this moment the water heater functions
automatically. If there is no request for DHW, it
goes to "Stand-by" which is equal to water heater
powered without flame presence. The display
shows the temperature of the water inside the
water heater (5). Each time the burner ignites,
the relative flame present symbol is displayed
(11) with relative power scale (10). Moreover, the
indication of the instant temperature supplied by
the water heater is supplied.
• "Stand-by" mode. Repeatedly press the button
(1) until the (
) symbol appears. The water
heater is inactive from this moment. The indi-
cation of any anomalies is however guaranteed.
Cause
In the event of request of domestic hot water production, the
water heater does not switch on within the preset time. Upon
appliance commissioning or after extended downtime, it may
be necessary to eliminate the block.
During normal functioning, if a fault causes excessive overheat-
ing internally, the water heater goes into block.
The board detects an anomaly on the domestic hot water NTC
probe.
Number of allowed resets that have already performed.
This occurs when the intake and flue exhaust pipes are ob-
structed, when the fan is blocked or the pressure switch is faulty.
The board detects an anomaly on the D.H.W. inlet probe
This occurs in the event of a leak on the detection circuit or
anomaly in the flame control unit.
The board detects an anomaly on the pushbutton panel.
This occurs when the power supply voltage is lower than the
allowed limits for the correct functioning of the water heater.
2.7 SWITCHING OFF THE WATER
HEATER.
Press the button (1 Fig. 2-1) (
display turns off completely.
N.B.: in these conditions the water heater is
considered still powered on.
Disconnect the external omnipolar water heater
switch and close the gas cock upstream of the
appliance. Never leave the water heater switched
on if left unused for prolonged periods.
2.8 EMPTYING THE WATER HEATER.
To empty the water heater, close the cold water
inlet valve and open the hot water valve lower
down in the water network in the room.
N.B.: in these conditions the water heater is
considered still powered on.
• "Off " mode. Press button (1) repeatedly until
the display switches off. In this way the water
heater is off completely.
N.B.: in these conditions the water heater is
considered still live even if there are no func-
tions active.
2.5 TROUBLESHOOTING.
The water heater will signal any anomaly with
the flashing display along with the relative code
as per the table below:
Press the Reset button (1).
Press the Reset button (1).
The water heater does not produce hot water (1).
Attention: the anomaly can be reset 5 times con-
secutively, after which the function in inhibited
for at least one hour. One attempt is gained every
hour for a maximum of 5 attempts. By switching
the appliance on and off again, the 5 attempts are
re-acquired.
If normal conditions are restored the water
heater restarts without having to be reset (1).
In this case the water heater continues to
produce domestic hot water but without optimal
performance (1).
Press the Reset button (1).
If normal conditions are restored the water
heater restarts without having to be reset (1).
If normal conditions are restored the water heater
restarts without having to be reset (1).
2.9 ANTI-FREEZE PROTECTION
The water heater can be equipped with an
) until the
optional anti-freeze kit, which protects it from
freezing to outdoor temperatures of -15°C. For
correct installation of the kit and especially to
guarantee appropriate functioning, the instruc-
tions supplied with the kit itself must be followed.
2.10 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the water heater casing. Never use abrasive or
powder detergents.
2.11 DECOMMISSIONING.
In the event of permanent shutdown of the water
heater, contact an authorised company for the
suitable procedures and also ensure the electri-
cal, water and fuel supply lines are shut off and
disconnected.
16
Water heater status / Solution
(OPTIONAL).
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Table of Contents
Troubleshooting
