Ariston NIMBUS PLUS S NET User Manual

52 / GB
Cleaning the heating system
At the rst installation, it is necessary to pre-clean the installa-
tion.
In order to ensure the proper functioning of the appliance,
after each cleaning operation or water substitution, verify that
the appearance of the liquid system is clear, without visible
impurities and that water hardness is under 20°F.
Characteristics of the water supplied to the appliance
Ensure that the system is supplied with water having a maxi-
mum hardness of 20 ° F.
For areas where the water is particularly hard, provide a water
softener does not change in any way the warranty, if the com-
ponent is installed in a proper manner and is subject to regular
checks and maintenance.
In particular, the hardness of the water supplied to the ap-
pliance, must never be less than 12 ° F.
In case of aggressive water lling (the pH should be kept
between 6.6 and 8.5), ferruginous or hard, use treated water
in order to prevent scaling, corrosion and damages to the ap-
pliance. Please note that even a small amount of impurities in
the water may decrease the performance of the installation.
The used lling water must absolutely be treated in case of
installation of large capacity (high volumes of water) or in case
of frequent replenishments of water in order to maintain a
constant level of liquid in the installation. Where it is necessary
to proceed with the cleaning of the installation, ll the entire
system with treated water.
Verify that the maximum pressure, at the level of the water
supply, does not exceed 5 bar. Otherwise, provide the instal-
lation with a pressure reducer valve.
This product conforms
to Directive
WEEE 2012/19/EU.
The symbol of the crossed waste paper basket on the ap-
pliance indicates that at the end of its working life the pro-
duct should be disposed of separately from normal domestic
household rubbish, it must be disposed of at a waste dispo-
sal centre with dedicated facilities for electric and electronic
appliances or returned to the retailer when a new replace-
ment product is purchased.
The user is responsible for the disposal of the product at the
end of its life at an appropriate waste disposal centre.
The waste disposal centre (which using special treatment
and recycling processes eectively dismantles and disposes
of the appliance) helps to protect the environment by recy-
cling the material from which the product is made.
For further information about waste disposal systems visit
your local waste disposal centre or the retailer from which
the product was purchased.
CE Labelling
appliance complies with norms:
- 2014/30/EU - relating to Electromagnetic Compatibility
- 2014/35/EU - related to electrical safety (LVD)
- RoHS2 2011/65/EU related to the restriction of the use of
certain dangerous substances in electrical and electronic
equipment (EN 50581)
- Regulation (EU) No. 813/2013 on ecodesign (no. 2014/C
207/02 - transitional methods of measurement and calcula-
tion)

Ariston NIMBUS PLUS S NET Specifications

General

Type	Air-to-water heat pump
Refrigerant	R32
Energy Efficiency Class (Heating)	A++
Energy Efficiency Class (Cooling)	A++
Maximum Flow Temperature	60°C
Weight (Indoor Unit)	45 kg
Connectivity	Wi-Fi
Dimensions (Outdoor Unit)	950 mm

Summary

Maintenance

General remarks

Internal Unit Error List

Internal Unit Error List (Continued)

Error codes and troubleshooting

Continuation of internal unit errors and solutions.

External Unit Error List

Error codes and reset procedures

List of external unit error codes and reset methods.

Inverter error codes and troubleshooting

Troubleshooting for external unit inverter errors.

Inverter Error List

Inverter error codes

Detailed list of inverter error codes for troubleshooting.

ODU inverter error codes

Detailed list of ODU inverter error codes.

Inverter Error List (ODU Specific)

Safety Regulations

Key to symbols

Explanation of symbols used to denote risks and warnings.

General safety warnings

General safety advice for installation and handling.

Safety Regulations (Continued)

Continued safety precautions

Further safety advice for operation and maintenance.

Installation Guide

Pre-installation considerations

Important considerations before appliance installation.

External Unit Installation

Internal Unit Installation

Gas Connections

Safety and connection procedure

Safety notes and steps for connecting gas pipes.

Air purging and refrigerant charging

Procedures for air purging and refrigerant charging.

Electrical Wiring

Safety and circuit requirements

Safety notes and electrical circuit requirements.

External unit connection table

Electrical connection details for external units.

Internal Unit Electrical Connections

Electrical supply and connection details

Electrical supply and connection details for internal units.

External Unit Electrical Connection

Internal Unit Electrical Connection

Connection procedures and warnings

Connecting power/control signals and thermostat advice.

Inter-unit Electrical Connections

Terminal connections and notes

Connecting terminals and surge protection recommendations.

Electrical Scheme - External Unit

1 PH (4-5-7kW) diagram

Electrical diagram for 1-phase external units.

3 PH (7kW) diagram

Electrical diagram for 3-phase external units.

Electrical Scheme - External Unit (Continued)

3 PH (9-11kW) diagram

Electrical diagram for 3-phase external units.

1 PH (9-11kW) diagram

Electrical diagram for 1-phase external units.

Electrical Scheme - Internal Unit (WH 90 110 S)

Safety warnings

Safety warning regarding terminal access and plate removal.

Electrical Scheme - Internal Unit (WH 70 S)

Electrical Scheme - Internal Unit (WH 40 50 S)

Internal unit wiring diagram

Wiring diagram for internal unit models WH 40 50 S.

Installation of System Interface

System Configuration

Commissioning procedure

Steps for initial setup and language selection.

Technical Area Access

How to enter the technical area and access menus.

HP System Parameters

Cooling Parameters

Parameters for cooling operation.

Domestic Hot Water Parameters

Parameters for domestic hot water settings.

HP System Parameters (Continued)

Central Heating Parameters

Parameters for central heating operation.

DHW and Thermal Cleanse settings

Advanced DHW settings, boost, and thermal cleanse.

Domestic Hot Water and Thermal Cleanse

Energy Manager Parameters

Thermoregulation and ECO/COMFORT

Thermoregulation

Zone 1 Parameter Access

Accessing and adjusting Zone 1 thermoregulation parameters.

Zone 1 Cooling Parameters

Zone2 Parameters (Continued)

HP System Parameters

Accessing and setting Heat Pump system parameters.

EM Input/Output Configuration

Configuration of Energy Manager inputs/outputs.

HP Diagnostics - 1

Temperature and pressure readings

HP Diagnostics - 2

Heat Pump Mode status

HP Diagnostics - 2 (Continued)

Error and status readings

EM Diagnostics - 1 Input

EM Diagnostics - 1 Input (Continued)

Energy Manager input status

EM Diagnostics - 2 Output

Energy Manager output status

Reset Menu

Resetting system settings

Buffer Configuration

Buffer settings