Ariston NEXT EVO X SFT Series User Manual

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INSTALLATION
Gas connection
The appliance was designed to use gases belonging to
the categories as shown in the following table.
COUNTRY MODEL CATEGORIES
GB
NEXT EVO X 11 SFT
NEXT EVO X 16 SFT
I3B/P
II2H3P
Make sure, using the labels on the packaging and the
data plate on the appliance itself, that the appliance is in
the correct country and that the gas category for which
the appliance was designed corresponds to one of the
categories available in the country where it will be used.
The gas supply piping must be created and measured
out in compliance with specic legal requirements and in
accordance with the maximum power of the appliance;
you should also make sure that the shut-off valve is the
right size and that it is connected correctly.
Before carrying out the installation, it is recommended
that the fuel pipes are cleaned thoroughly in order to
remove any residues which could prevent the appliance
from operating correctly.
Check that the supplied gas corresponds to the type of
gas for which the appliance was designed (see the data
plate located on the appliance itself).
It is also important to check that the pressure of the gas
(methane or LPG) you will be using to feed the appliance
is suitable, because if it is insufcient the power of the
generator may be reduced, causing inconvenience for the
user.
Water connection
The illustration shows the connections for the water and
gas attachments of the appliance.
Check that the maximum water mains pressure does not
exceed 8 bar; if it does, a pressure reducing valve must
be installed.
Ensure that the minimum pressure is not lower than
0,2 bar.
View of the hydraulic Connections
A. Hot water outler 1/2”
B. Gas inlet 1/2”
C. Cold water inlet 1/2”
G. Drain valve
A
B
C
A
C
B
G
A
B
C
A
C
B
G
The device is equipped with a lter “G”, located on the
cold water entrance. Periodically clean the hydraulic
system, if dirt is present.
THE GAS WATER HEATER DOES NOT HAVE
PRESSURE RELIEF FUNCTION. AN EXTRA
PRESSURE RELIEF DEVICE IS NEEDED IF THIS
FUNCTION IS NEEDED.
IMPORTANT!
DO NOT ACTIVATE THE DEVICE WITHOUT
THE FILTER.
IMPORTANT!
IF THE UNIT IS INSTALLED IN AREAS
WITH THE PRESENCE OF HARD WATER
(> 200 MG / L) IS NECESSARY TO INSTALL
A WATER SOFTENER TO REDUCE THE
PRECIPITATION OF LIMESTONE IN THE
HEAT EXCHANGER.
THE WARRANTY DOES NOT COVER
DAMAGE CAUSED BY THE LIMESTONE.

Ariston NEXT EVO X SFT Series Specifications

General

Ignition	Electronic Ignition
Installation	Wall-mounted
Fuel Type	Natural Gas or LPG
Capacity	No storage capacity, heats water on demand
Energy Efficiency	High Efficiency
Display	LCD
Safety Features	Flame failure device, overheating protection, antifreeze function