Ariston NIMBUS M NET Operation instructions

NIMBUS M NET
USER OPERATING MANUAL
MODE D’EMPLOI POUR L’UTILISATEUR
EN

2 / EN
Introduction
Dear Madam,
Dear Sir,
thank you for choosing the NIMBUS M NET ARISTON system.
This manual was drawn up with the aim of informing you on
how to use the system, in order to enable you to optimally use
all the functions.
Store this booklet, as it contains all the necessary information
regarding the product following its initial installation.
To find your nearest Technical Assistance Service, please see
our Internet website www.Ariston.com.
Please also refer to the Warranty Certificate that you will find
inside the packaging, or which was handed to you by the
installer.
Symbols used throughout this manual
and their meaning
i
WARNING Indicates important information
and particularly delicate operations.
a
WARNING: DANGER Indicates actions that,
if not performed correctly, can lead to general
injuries or malfunctions or material damages
to the appliance; they therefore require
special attention and adequate training.
Warranty
The ARISTON product is covered by a conventional warranty,
which takes effect from the date of purchase of the appliance.
For the warranty conditions, refer to the warranty certificate
accompanying the product.
Compliance
The CE marking applied to the appliance certifies that it
conforms with the essential requirements of the following
European Directives:
–2014/30/EU (Electromagnetic Compatibility Directive)
–2014/35/EU (Low Voltage Directive)
–RoHS 3 2015/863/EU on restrictions regarding the
use of certain hazardous substances in electrical and
electronic appliances (EN 50581)
–Regulation (EU) no. 813/2013 relative to ecodesign (no.
2014/C 207/02 - transitional methods of measurement
and calculation)
–2014/68/EU (PED)
Disposal
PRODUCT CONFORMING TO EU
DIRECTIVE 2012/19/EU and to Italian
Legislative Decree 49/2014 pursuant to
Art. 26 of Legislative Decree no. 49 of 14
March 2014,“Implementation of Directive
2012/19/UE on waste of electrical and
electronic equipment (WEEE)”.
The barred wheeled bin symbol appearing on the appliance or
on its packaging indicates that the product must be collected
separately from other waste at the end of its useful life.
The user must therefore deliver the decommissioned product
to an appropriate local facility for separate collection of
electrotechnical and electronic waste. Alternatively, the
appliance to be scrapped can be delivered to the dealer when
purchasing a new equivalent appliance. Electronic products for
disposal measuring less than 25 cm can also be delivered free
of charge to electronic equipment dealers having a surface area
of at least 400 m2, without having to purchase other products.
Proper separated collection of the decommissioned appliance
for its subsequent recycling, treatment and eco-compatible
disposal helps to prevent negative effects on the environment
and human health, besides encouraging reuse and/or recycling
of its constituent materials.

3 / EN
Contents
1. Safety-related information
1.1 General warnings and safety instructions 4
1.2 Use of the R32 refrigerant 5
1.3 System interface SENSYS HD 5
2. Description
2.1 Glossary of terms 6
2.2 Menu navigation 6
2.3 Complete home page 8
2.4 Base home page 9
2.5 Customizable home page 9
2.6 Stand-by page 10
2.7 Basic functions 10
2.8 Operation 10
3. User menu
3.1 Zones management 12
3.1.1 Operating mode 13
3.1.2 Zone name 13
3.1.3 Room T setpoint 13
3.1.4 Time Program 13
3.2 Time scheduling 13
3.2.1 Heating/Cooling time scheduling - 2 levels 13
3.2.2 Heating/Cooling time schedule - Multi-level 16
3.2.3 DHW time program 16
3.2.4 Auxiliary time scheduling 18
3.2.5 Heating/cooling buffer time scheduling 18
3.3 Consumptions graph 18
3.4 Holiday function 19
3.5 Operating mode 19
3.6 DHW settings 19
3.6.1 Thermal cleanse function 20
3.7 Connectivity 20
3.8 System information 20
3.8.1 SW Version Interface 20
3.8.2 Zone number 20
3.8.3 System Performance 21
3.9 Diagnostics 22
3.10 Screen settings 22
3.10.1 Language 22
3.10.2 Time & Date 22
3.10.3 Home screen 22
3.10.4 Screen brightness 23
3.10.5 Standby settings 23
3.11 Advanced settings 23
3.11.1 CH settings 23
3.11.2 Cooling settings 24
3.11.3 AUTO function 24
3.11.4 Buffer 25
3.11.5 Heat Pump 25
3.11.6 Hybrid 26
3.11.7 Hp Water Heater 27
3.11.8 Photovoltaic integration 27
3.11.9 System measurement unit 27
3.11.10 Time Program service type set 28
3.11.11 Room Temp Correction 28
3.11.12 Select the zones to manage 28
3.12 Errors and diagnostic messages 28
4. Initial start-up
4.12.1 Filling the system 29
4.1 Initial start-up 29
4.1.1 Start-up procedure 29
4.2 Error list 30
5. Service
5.1 Anomalies and solutions 34
5.2 Cleaning and inspecting the indoor unit 35
5.3 Cleaning and inspecting the outdoor unit 35
5.4 Disposal 35

Safety-related information
4 / EN
1. Safety-related information
1.1 General warnings and safety instructions
i
This manual is the property of ARISTON and
it is forbidden to reproduce or transfer to
third parties the contents of this document.
All rights reserved. This document is an
integral part of the product; make sure that
it always accompanies the appliance, also
when the latter is sold/transferred to another
owner, so that it can be consulted by the
user of by personnel authorised to perform
maintenance and repairs.
i
Read the information and warnings given in
this manual in full; they are essential to the
safe installation, use and maintenance of the
product.
i
Do not use the product for any purpose
other than that specified in this manual.
The manufacturer is not liable for damage
resulting from improper use of the product
or failure to install it as instructed herein.
i
All routine and extraordinary maintenance
operations must be carried out exclusively by
qualified personnel exclusively using original
spare parts. The manufacturer is not liable
for damage resulting from failure to observe
this instruction, which may compromise the
safety of the installation.
i
Product dismantling and recycling operations
must be carried out by qualified technical
personnel.
a
If a leakage detection device is installed in the
system, it is necessary to check for leakages
at least every 12 months. When inspecting
the unit for the absence of leakages, we
recommend keeping a detailed register of all
the inspections.
a
The appliance must be installed in a well-
ventilated room having adequate dimensions
as specified for the appliance’s operation.
a
The appliance can be used by children older
than 8 years and by people with reduced
physical, sensory or mental abilities, or who
lack adequate experience and the necessary
knowledge, provided they are supervised
or have been instructed on the safe use
of the appliance and on the potential
risks connected with it. Children must not
play with the appliance. Any cleaning and
maintenance which should be performed by
the user must not be done by unsupervised
children.
a
For electrical interventions, observe the
provisions of the national electrical standard,
local rules, applicable regulations, and the
instructions of the installation manual. It is
necessary to use an independent circuit and
a single power outlet. Do not connect other
appliances to the same power outlet. An
insufficient electrical capacity or defective
electrical installation may lead to potential
electrocution or fire.
a
Perform all electrical connections using
suitably-sized cables.
i
Protect connection piping and cables so as
to prevent damage to them.
i
Make suretheinstallationsiteandanysystems
to which the appliance must be connected
comply with applicable regulations.
a
During all work procedures, wear individual
protective clothing and equipment. Do not
touch the installed product if barefoot and/
or with any wet part of the body.

Safety-related information
5 / EN
a
If you notice a burnt smell or see smoke
coming out of the device, disconnect it from
the power supply, open all windows and
contact the technician.
a
Do not climb the outdoor unit.
a
Do not leave flammable material in the
vicinity of the system. Make sure that all
components of the system are positioned as
required by regulations.
a
Do not start up the system if steam or
dangerous powders are present in the
installation room.
a
Do not place fluid containers and other
foreign objects on the indoor or outdoor
units.
a
The removal of the product’s protective
panels and all operations involving
maintenance and connection of electrical
equipment must be performed by qualified
personnel.
1.2 Use of the R32 refrigerant
FLAMMABLE MATERIAL
i
The R32 refrigerant is odourless.
a
This system contains fluorinated gases. For
specific information on the type and quantity
of gas, refer to the data plate. Always observe
the national regulations on the use of gases.
a
Interventions on the refrigeration circuit
must only be carried out by operators
possessing a valid certification, issued by an
accredited body, certifying their expertise
in manipulating refrigerants safely and in
accordance with the specifications in force in
the sector.
a
The refrigerant used within this unit is
flammable. A loss of refrigerant exposed to
an external source of ignition may cause the
risk of fire.
1.3 System interface SENSYS HD
The SENSYS HD system interface offers simple and efficient
room temperature adjustment and domestic hot water control.
SENSYS HD is compatible with Ariston NET.
Thanks for choosing Ariston NET, the system designed and
manufactured by ARISTON to offer a whole new experience in
using a domestic heating and hot water system.
Ariston NET allows you to start, stop and check the temperature
of space heating and domestic hot water at any time and
anywhere via your smartphone or PC.
It constantly monitors energy consumption to cut your gas bills
and notifies you in real time of any heat generator malfunctions.
Also, when the remote assistance service is activated, the
service centre will be able to solve most problems remotely.
For further information, visit the website dedicated to Ariston
NET: www.ariston.com/it/ariston-net. Or call us on 800 300 633.
Our Customer Service is available 7 days a week (from 8 am to
8 pm).

Description
6 / EN
2. Description
The system interface is a device that controls the heating
system. It can be used as a room thermostat and/or as a
system interface for monitoring the installation’s operation and
configuring the desired settings.
2.1 Glossary of terms
Zone: a heating system can be divided into multiple
hydraulically independent areas, which are referred to as
“zones”. Each zone can autonomously generate a heating/
cooling request towards the heat generator. For example, a
building can be divided into a zone with radiant panels and a
zone with radiators.
Time slot: by selecting the scheduled operating mode for a
zone, the user can define a specific time schedule. The time
schedule is divided into intervals which are referred to as“slots”;
for each slot it is possible to define a target temperature (set-
point) according to the time schedule set during the system’s
configuration.
Daily 2-level time scheduling: the daily 2-level time
scheduling allows for dividing the schedule into a maximum
of 4 comfort slots and 4 reduced-temperature slots within the
24 hours of each day.
Daily multi-level time scheduling: in this mode, available
only on specially configured products, it is possible to define
up to 12 daily slots, each of which can be associated with a
specific target temperature value.
2.2 Menu navigation
The interface is equipped with a colour display, a selector and
two buttons.
The interface menus can be navigated using the“Menu”button
(A), the selector (B) and the“Back”button (C).
–“Menu” button (A): when pressed, it opens up the
main menu.
–Turning the selector (B) allows the user to perform
the following functions:
–move through the items that can be selected on the
screen.
–scrolling the settings for a specific function or
parameter.
–Pressing the selector (B) allows the user to perform
the following functions:
–accessing the items that can be selected on the
screen.
–confirming the settings for a specific function or
parameter.
–The“Back”button (C) allows the user to perform the
following functions:
–returning to the previous menu or sub-menu.
–cancelling the entry of a setting for a specific
function or parameter.
30
21°
SALOTTO
,5
°C
5
18
,0
°
Ve 4-GIU 12:30
1,5 bar
10°

ABC
Fig. 1

Description
7 / EN
Navigation example
Advanced settings
CH settings
>
Cooling settings >
AUTO function ON
Buffer >
Heat Pump >
System measurement unit
International
system
Advanced settings
CH settings
>
Cooling settings >
AUTO function ON
Buffer >
Heat Pump >
System measurement unit
International
system
Advanced settings
CH settings
>
Cooling settings >
AUTO function ON
Buffer >
Heat Pump >
System measurement unit
International
system
Advanced settings
CH settings
>
Cooling settings >
AUTO function OFF
Buffer >
Heat Pump >
System measurement unit
International
system
20°
,5
20°
,5
20°
,5
20°
,5
20°
,5
20°
,5
21°
,5
21°
,5
21°
,5
21°
,5
21°
,5
21°
,5
SET
SET
SET
SET
SET
SET
Zone 1
Zone 4
Zone 2
Zone 5
Zone 3
Zone 6
Zone 1
Operation mode Time program
Zone name Zone 1
Room T setpoint 16,0°C
Time program
>
10°
12:00
21
,0
°
Monday 1 March 2021
1
Zones
management
Holiday function
Time program
System operation
modes
Consumptions
history
DHW settings
Connectivity
Advanced
settings
System info Screen settings
1
Connectivity
Advanced
settings
System info Screen settings
Fig. 2
Key
Back button
Menu button
Turn the selector
Press the selector

Description
8 / EN
2.3 Complete home page
30
21°
SALOTTO
,5
°C
5
18
,0
°
Ve 4-GIU 12:30
1,5 bar
10°
ABC
D I
L
E F G H

Fig. 3
AMenu button
BSelector
CBack button
DFunction icons
EWeather and outdoor temperature
FRoom temperature
GRequired temperature
HTime & Date
IOperation icons
MPressure indication
i
The SENSYS HD interface is compatible with
Ariston NET when used with an ARISTON Wi-Fi
module. Find out more on www.ariston.com/it/
ariston-net
SYMBOLS
Wi-Fi module update in progress
AP
Access Point Opening in progress
Wi-Fi Off or not connected
Wi-Fi connected but internet access failed
Wi-Fi active
Outside air temperature
Flame present
Optimum boiler efficiency
Solar heating module connected
Photovoltaic contact enabled
Photovoltaic contact active
SG
Smart Grid system enabled
Supplementary heating elements not enabled
Number of heating element stages active
Heat pump active
Room set-point extension active
CH
Heating active
SYMBOLS
Domestic hot water
Domestic hot water active
Cooling service enabled
Cooling service active
90% Relative humidity index
Time Program
Manual
Temperature regulation function active
Holiday function active
Domestic hot water Boost function enabled
Hot water comfort enabled in electricity reduced
band rate
HC 40
Hot water comfort enabled in electricity reduced
band rate and domestic hot water set-point at 40°C
in electricity full band rate
Test mode active
Thermal sanitation function active
Anti-frost function active
Dehumidification function active
Silent mode active (only for heat pumps)
Error in progress

Description
9 / EN
2.4 Base home page
The“Base”home page can be selected if the device is configured
as a system interface (Zone 0).
The central area shows information about the heating, cooling
or domestic hot water modes.
For the meaning of the icons, refer to the paragraph“Complete
home page”.
3,1 bar
50%
55°C
42°C
10°
COMFORT
Fr 4-JUN 12:30
Fig. 4
2.5 Customizable home page
Fr 4-JUN 12:30
Internal temperature 20°
Required temperature 21°
0 2 4 6 8 10 12 16 2014 18 22 24
16° 16° 16°20° 20°
Fig. 5
The home page “Customizable” allows the user to view
information that can be selected in the following options:
Internal temperature
Fr 4-JUN 12:30
Internal temperature 20°
Required temperature 21°
Outside air temperature 16°
Operation mode 55°C
Fig. 6
If the device is associated with a zone, the room temperature
of the relevant zone is shown. If the device is configured as a
system interface (Zone 0), the room temperature of the zone
defined by the 0.4.0 parameter is shown.
Required temperature
Fr 4-JUN 12:30
Internal temperature 20°
Required temperature 21°
Outside air temperature 16°
Operation mode 55°C
Fig. 7
If the device is associated with a zone, the room set-point
temperature of the relevant zone is displayed. If the device is
configured as a system interface (Zone 0), the room set-point
temperature of the zone defined by the 0.4.0 parameter is
shown.
Outside air temperature
Fr 4-JUN 12:30
Internal temperature 20°
Required temperature 21°
Outside air temperature 16°
Operation mode 55°C
Fig. 8
The information is available if an outdoor temperature sensor
is connected or if the “weather from the Internet” function is
activated once the Wi-Fi module has been activated.
Heating time schedule profile
0 2 4 6 8 10 12 16 2014 18 22 24
16°16°16°20°20°
Fig. 9
If the device is associated with a zone, the heating time
schedule profile of the relevant zone is displayed. If the device
is configured as a system interface (Zone 0), the heating time
schedule profile of the zone defined by the 0.4.0 parameter is
shown.
Cooling time schedule profile
0 2 4 6 8 10 12 16 2014 18 22 24
19°19°19°26°26°
Fig. 10
Available only for products configured for the cooling mode.
If the device is associated with a zone, the cooling time
schedule profile of the relevant zone is displayed. If the device
is configured as a system interface (Zone 0), the cooling time
schedule profile of the zone defined by the 0.4.0 parameter is
shown.

Description
10 / EN
Domestic hot water time schedule profile
0 2 4 6 8 10 12 16 2014 18 22 24
35,0°35,0°60,0°60,0°
Fig. 11
If the system is configured for producing domestic hot water,
the domestic hot water time schedule profile is displayed.
Domestic hot water heat pump mode
Fr 4-JUN 12:30
Internal temperature 20°
Required temperature 21°
Outside air temperature 16°
Operation mode 55°C
Fig. 12
If there is a domestic hot water heat pump, the product’s
operating mode and the set-point temperature of the water
are shown.
For the meaning of the icons, refer to the paragraph“Complete
home page”.
2.6 Stand-by page
10°
12:00
21
,0
°
Monday 1 March 2021
Fig. 13
2.7 Basic functions
Manual room temperature adjustment
The operating mode of the zone associated with the device is
set to MANUAL (1).
Turn the selector to select the temperature value indicated on
the display using the movable cursor near the ring. Press the
selector to confirm.
The display shows the set temperature.
30
21°
SALOTTO
,5
°C
5
19
,0
°
18:30 11/10/2020
10°
1,5 bar
50%
1
Fig. 14
Room temperature adjustment in programmed mode
The operating mode of the zone associated with the device
is set to PROGRAMMED (2). During operation in scheduled
programming mode, the set room temperature can be
changed temporarily.
Turn the selector to select the temperature value indicated
using the movable cursor near the ring. Press the selector to
confirm.
The display shows the set temperature.
Turn the selector to set the time until which the change must
be maintained.
Press the selector to confirm. The (3) symbol appears on the
display.
The system interface will maintain the temperature value
until the set time, after which the pre-set room temperature
is restored.
30
21°
SALOTTO
,5
°C
5
19
,0
°
18:30 11/10/2020
10°
1,5 bar
50%
Fino alle 20:00
3
2
Fig. 15
Room temperature adjustment with AUTO function on
If the heating hot water temperature does not match the
desired value, it can be increased or decreased via the“Heating
Settings”. The correction bar will appear on the display.
Press the selector to confirm, or press the back button to return
to the previous screen without saving.
2.8 Operation
The main page of the system interface can be customised.
The main page can be used to check the time, date, operating
mode, the set or measured temperatures, the time scheduling
and the active energy sources.