Using The Appliance; Changing The Dhw Setpoint; Operating Faults And Reset - Riello ACQUAFUN2 11 LN MTN Installation And User Manual

4 4 Using the appliance

The first commissioning of the appliance must be carried out by qualified
personnel.
The following checks and operations must be carried out:
- check that the fuel shut-off and water taps of the water system are open
- insert the batteries supplied in the battery compartment (Fig. 16)
- the water heater powers on and the display shows: the type of gas, the
size, the type of ignition and the software version, and then the current
operating temperature
- if the appliance does not power on, press button B (ON/OFF) or check
the battery charge
When there is a request for water, the automatic ignition devices turns
on the pilot flame. Once the flame has been detected, the main burner
switches on and the pilot flame switches off.
- during the request, the instant water temperature is shown on the dis-
play
- at the end of the water request (when the tap is turned off), the main
burner and the display switch off and the appliance goes into standby,
ready for a new request
Domestic hot water pick-up
- Open a domestic hot water tap. The temperature of the domestic hot
water dispensed is shown on the display (rounded up to the nearest
degree).
- The burner comes one, when the flame is detected, the corresponding
symbol is shown on the display.
- The appliance produces domestic hot water at the temperature set.
- When the water tap is shut-off, the boiler switches off and prepares for
the next start-up.
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4 4 1 Changing the DHW setpoint

Pressing the "+" or "-" key it is possible to change the setpoint for the
domestic hot water. With the "+" key the value increases, with the "-" key
it decreases.
Press and hold the + or - button to increase or decrease the value quickly.
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If there is a fault the water heater carries out a "STOP" (see section Op-
erating faults and reset).

4 5 Operating faults and reset

In the event of a fault, the displays summarised and described in the table
are shown.
Error code
E1
E2
E4
E7
E8
Fig. 2
E9
Error code
E3
E6
EE
When a transitory fault is present the appliance in block status til a new
request of hot water.
b
If a temporary alarm shows 5 times in the space of 15 minutes it
becomes definitive.
Where there is a definitive alarm, to restore normal appliance operation
press the RESET button and hold for 5 seconds.
If the problem persists, contact the technical support service.
When a definitive fault appears on the display, the error code alternates
with the message "nL".
Fig. 3
Fig. 4
Transitory
Error type
Definitive
Ignition failure Transitory
Ignition failed Transitory
DHW NTC sensor
Transitory
fault alarm
Flue/limit thermostat
alarm
Over temperature
Transitory
alarm
Maximum operating
Transitory
time exceeded
Error type
Electronic fault alarm
parasite flame fault
Ask for Technical
Communication lost
Assistance
between display and
control board
ENGLISH
Definitive
Fig. 5
Fig. 6
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