Ariston NEXT OUTDOOR EVO, User Manual, Page: 21 / 31

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COMMISSIONING
WARNING!!
Check the GAS CONNECTION for leaks
WARNING!!
IF YOU SMELL GAS:
Do not try to start the water heater.
Do not touch any electric switches; do not
use any phone in your building.
Turn off the main gas valve.
Open all windows and call for assistance.
Change of gas type
The appliance may be adjusted so that it may be used
with Liquid Gas (G30-G31) instead of methane gas (G20)
or vice-versa.
The adjustment must be performed by a
Carefully follow the instructions provided in
the instructions sheet included in the kit.
Proceed as follow:
1. Close the gas cock.
2. Unplug the supply cable.
3. Remove the front cover
4. Replace the gas collector
5. Replace the gas valve gasket.
6. Reconnect the cable of the detection electrode
7. Make sure that no screws or detritus have been forgotten
inside the combustion chamber.
8. Plug the supply cable
9. Access to the parameter L0 to set the new value for the
gas/model - see the ”Gas setting table”.
10. Access to the parameter Lb and select 1 to activate the fan
re-adapt (always with front cover open)
11. Open the gas cock.
12. Check the supply pressure for the new gas.
13. Access to the paramters L2 - L3 to adjust the minimum and
maximum gas burner pressure - see “Gas setting Table”
14. IF NECESSARY , set the Limited pressure (min/max).
Access to the parameters Ld-LE to adjust the minimum
and the maximum gas limited pressure using the dedicated
nut/screw.
15. Access to the parameter L6 to adjust the Slow ignition
pressure - see the
”Gas setting table”.
16. Switch ON the device, open a DHW tap, and check operation.
17. Assemble the front cover.
Gas settins table
NEXT OUTDOOR NEXT OUTDOOR
11 ZA EVO 16 ZA EVO 20 ZA EVO 24 ZA EVO
G20 G230 G30 G31 G20 G230 G30 G31 G20 G30 G31 G20 G30 G31
lower Wobbe index
(15°C, 1013 mbar)
MJ/
m
3
45.67 38.90 80.58 70.69 45.67 38.90 80.58 70.69 45.67 80.58 70.69 45.67 80.58 70.69
Gas inlet pressure mbar
20 20 28/30 37 20 20 28/30 37 20 28/30 37 20 28/30 37
Gas burner pressure max mbar
8.20 8.20 8.00 10.30 7.40 7.40 7.80 9.40 5.90 6.90 8.20 7.40 8.90 10.80
Gas burner pressure min mbar
2.90 2.90 3.20 4.10 2.40 2.40 2.90 3.00 2.70 3.00 3.50 2.70 3.00 3.50
Slow ignition pressure mbar
6.90 6.90 7.50 8.60 6.95 6.95 7.60 9.00 4.46 5.29 6.33 5.68 6.40 7.92
LO Parameter -
Setting model and
type of gas
nr.
27 27 37 32 29 29 39 34 30 40 35 31 41 36
Maximum limited pressure mbar
9.00 9.00 9.00 12.00 9.00 9.00 9.00 12.00 9.00 12.00 12.00 9.00 12.00 12.00
Minimum limited pressure mbar
2.40 2.40 2.40 3.00 2.00 2.00 2.40 2.40 2
.
00 2.40 2.80 2.00 2.40 2.80
Main Burner jets nr.
10 15 18 18
Ø burner jets mm
1.5 1.65 1.1 1.1 1.5 1.60 1.1 1.1 1.7 1.18 1.18 1.7 1.18 1.18
Consumption
(15°C, 1013 mbar)
(G.N.= m
3
/h) (LPG
kg/h))
max
2.30 1.79 1.56 1.54 3.35 2.58 2.25 2.22 4.23 2.91 2.86 4.90 3.42 3.37
min
0.54 0.42 0.36 0.36 0.73 0.55 0.47 0.47 0.92 0.65 0.64 0.92 0.65 0.64