Ariston Thermo NIMBUS POCKET M NET User manual

IT
NIMBUS POCKET M NET
ISTRUZIONI TECNICHE PER L’INSTALLAZIONE E LA MANUTENZIONE
TECHNICAL INSTRUCTIONS FOR INSTALLATION AND MAINTENANCE
OK
420000454000
3319105

57 / GB
TABLE OF ELECTRICAL CONNECTIONS
EXTERNAL UNIT 40 M EXT 50 M EXT 70 M EXT 70 M-T EXT 90 M-T EXT 110 M-T EXT
Nominal running current / phase A 6.4 8 11 3.8 6 7.3
Maximum running current / phase A 9 11 16 5.4 8.4 10
Circuit breaker size (*) A 16-C type 16-C type 20-C type 10-C type 12-C type 12-C type
Nominal Voltage V 230 230 230 400 400 400
Operating voltage limits V 216-243 216-243 216-243 376-424 376-424 376-424
Cos phi > 0,9
Power supply cable
Reference H07RN-F
3G2.5 3G2.5 3G2.5 5G2.5 5G2.5 5G2.5
Max φext 16.2 16.2 16.2 19.9 19.9 19.9
Communication cable Reference H05RN-F
Type 2x0.75mm2
(*) For the installations in ERDF network it is better to follow the instructions provided by “SeQuelec” and use the circuit breaker type D.
INTERNAL UNIT
Electrical supply V - ph - Hz 230 - 1 -50
Admitted voltages eld V 196 ÷ 253
Rated power input kW 10
Max current mA 25 (nominal) - 140 (maximal)
Thermal cutout/ dierential circuit breaker A 20A - type C
Supply cable dimensions 2x0.75 mm
2
Wiring signal EDF, AFR, PV mm2H07RN-F 2 x 0,75 mm2
N.B. It is strongly recommended to separate the supply cables from the communication cables.
ATTENTION
The electrical connections shall be made after completing all hydraulic connections.
The internal and external units must be powered separately according to what is indicated on the tables. Between the internal
and external units should also be made a MOD BUS connection. This connection may be made through the use of a cable of
reduced section (recommended section 0,75 mm2). Do not let this cable walk along a power connection.
Electrical circuit
• Check that the voltage and frequency of power supply from the network coincide with the data shown in the data plate of the
appliance (see table)
• In order to ensure greater security, the main electrical system should be checked by a qualied technician before proceeding
with the installation (see note).
• The manufacturer is not liable for any damage caused by installation with improper grounding or abnormalities in the electrical
system.
• Check that the installation is adequate to support the power consumption of the installed units, indicated on the data plate of
the product.
• The electrical connections must be carried out with the aid of a xed supply connection (do not use mobile sockets) and equip-
ped with a bipolar switch, having a distance between the contacts of at least 3 mm.
• It is essential to connect the appliance to a correctly grounded electrical circuit, as to ensure the safety of the installation.
It is also forbidden to use for the grounding of the system and the hydraulic connection of the heating tubes.
• The manufacturer is not liable for any damage caused by installation with improper grounding or implant level anomalies elec-
tric.
• Connect the power cord to a 230V-50Hz or (400V-50Hz), verifying the polarizations of the L-N (or L1, L2, L3, N) connection and
the connection to the earth. The section of the used cables must comply with the power of the installation (see plate characte-
ristic).
• For the electrical connection of the installation, you shall not use power strips, extension cords and adapters. It is also prohibited
to use the hydraulic pipes and heating system pipes to ground the installation.
The system is not protected against lightning. If you need to change the fuses, use fast fuses.
Warning: Before obtaining access to terminals, all supply circuits must be disconnected.
ELECTRICAL WIRING

58 / GB
WARNING:
Make ground connection prior to any other electrical connections.
The internal and external units must be powered separately.
To prevent any risk, the power supply cable of the outdoor and indoor unit must only be replaced by the technicians of the
after-sales service.
External Unit electrical connection
• When removing the front panel, the electric parts appear at the front side.
• The power supply cables can be inserted into the precut holes (A) in the back (Take o the knockout part)
• Be sure to fix the power cable (B) and indoor/outdoor communication cable with all the clips provided into the units and if
necessary add bundling bands sold on the market in order to be sure that they will not be in contact with the compressor and
the hot pipes.
• To ensure good tensile strength, the electric cables must be fastened using the cable-holder on the plate (C).
• Connect the communication cable to the terminals as identified by their respective numbers on the terminal block of indoor
and outdoor unit.
According to the installation instructions, all devices for disconnection from the power supply mains must have a contact
opening (4 mm) to allow total disconnection according to the condition provided for the overvoltage class III.
Warning: Before obtaining access to terminals, all supply circuits must be disconnected.
External unit terminal block 1Ph External unit terminal block 3Ph Bus terminal block
A
C
B
L NNL
LN EH1 EH1EH1 EH1 ST1ST1ST1 ST1 B
BUS
T L1 L2 L3 N
EH1 - Antifreeze electric heaters for water piping.
ST1 - Safety thermostat connection (230 V) for under-floor system (shunt connection).

59 / GB
ANODE SE TNK BUF BUS
TA 1 TA 2
B T
IN
AUX 1+24V N LN L
PM AUX
AUX 1
OUT V 1 V 2
ST 1
HV
IN 3
HV
IN 1
HV
IN 2
L N
N
L
L
LL
230V
N
Internal Unit electrical connection
Before any operation on the system, turn o the main power. Observe
the phase and neutral connections.
To access the control panel of the internal unit, proceed as follows: Re-
move the three screws (A) indicated in figure and remove the cover of
the electrical panel (B).
When opening the internal unit, you will find the following
connections:
ANODE - Tank Protech anode connection.
Observe the electrical polarities.
TA1 - Ambient contact thermostat connection, zone 1.
TA2 - Ambient contact thermostat connection, zone 2.
SE - Outdoor temperature sensor connection.
TNK - Tank sensor connection.
BUF - Buer sensor connection.
BUS - BUS connection for System interface and
BUS connection between internal and external unit.
IN-AUX - Humidistat/auxiliary input connection.
HV IN 3 - 230V Input. Select the operation mode by the parameter
17.1.2.
PV Integration: through this input is possible to use the DHW
tank as energy storage in case of a surplus of energy produc-
tion by a PV system. Connect the output contact from an energy
meter to the PV input, the output contact is closed when the
energy production is higher than a threshold settable on the
energy meter.
HV IN 1 - 230V Input. Select the operation mode by the parameter
17.1.0.
•EDF (Night tari): applying a 230V signal to the input the tank
charge is enabled according to the DHW modes HC-HP or
HC-HP 40°C selectable by the parameter 17.5.2
•SG Ready 1: input signal nr 1 for the SG Ready standard (see
paragraph SMART GRID READY STANDARD).
HV IN 2 - 230V Input. Select the operation mode by the parameter
17.1.1.
•DLSG (load shedding): this input signal, if supplied by the elec-
trical grid provider, disable the heating resitors.
•SG Ready 2: input signal nr 2 for the SG Ready standard (see
paragraph SMART GRID READY STANDARD).
OUT-AUX 1- Auxiliary output, free potential contact
(see parameter 17.1.4)
ST1 - Safety thermostat connection (230 V)
for under-floor system (shunt connection).
PM AUX- Auxiliary pump connection.
V1 - Diverter valve connection for domestic water circuit
V 2 - Diverter valve connection for cooling circuit
L 1 - Three-phase power phase 1 connection (230 V)
for internal unit
L 2 - Three-phase power phase 2 connection (230 V)
for internal unit
L 3 - Three-phase power phase 3 connection (230 V)
for internal unit
N - Connection of the neutral point (230 V) of the internal unit .
- Earth connection of the internal unit .
The size and length of the cables must be sized according to the
power indicated on the data plate of the internal unit.
Ensure that the power cables are properly tightened in order to
avoid overheating.
WARNING
After carrying out the connections between the indoor and
outdoor units, put back both panels of the respective units.
Low voltage terminal block of
internal unit
High voltage terminal block of
internal unit
Power supply terminal
block of internal unit

60 / GB
LN EH1 EH1 ST1 ST1
BT
ANODE SE TNK BUF BUS
TA 1 TA 2
B T
IN
AUX 1+24V
30mA
T
N
XXA
ON
OFF
N
XXA
N
30mA
T
N
ON
OFF
XXA
NN
XXA
*
1 ph 3 ph
0,5 mm²
WARNING
After carrying out the connections between the indoor and outdoor unit, put back both panels of the respective units.
Electrical connections between internal and external unit
Before any work on the system, shut o the power at the breaker.
NOTE
It is strongly recommended to verify the presence of a surge protection device (SPD) on main power line and of circuit breakers
connected to the external and internal unit’s control box
* See table of electrical connections

61 / GB
3 ph
1 ph
ELECTRICAL SCHEME - BOX OF EXTERNAL UNIT

62 / GB
ELECTRICAL SCHEME - LIGHT BOX 1Z
LN
ORBU
N LN L
PM AUX
AUX 1
OUT V 1 V 2
ST 1
HV
IN 3
HV
IN 1
HV
IN 2
VALVE 1 VALVE 2
PUMP 1
FUSE
230V
SERIAL
ANODE
PWM2 PWM1
CN7
SW1
CN6 CN1
CN4
CN13
CN9
CN5
CN14
CN2
CN8
EBUS EBUS
C35
PUMP 2
CN10
CN16 CN12 CN11
F1
1
1
11
4
31
6
1
1
1
11
1
1
ENERGY MANAGER
RD
RD
BK
BN
GN GN GY GY RD RD BU BU BU OR
BK
YE YE
BN
BU
BN
BN BN
BN
BU
BU
BN
BU
BN
BU
BU
YE/GN
YE/GN
YE/GN
YE/GN
YE/GN
RD GN GY YE PI
YE/GN
LN
ANODE SE TNK BUF BUS
TA 1 TA 2
B T
IN
AUX 1+24V
BN
BU
BN BU
BK = Black
BN = Brown
BU = Blue
RD = Red
OR - Orange
YE = Yellow
GN =
Green
GY = Grey
WH = White
PI - Pink

420010851000 - 08/2017
Ariston Thermo SpA
Viale Aristide Merloni, 45
60044 Fabriano (AN) Italy
Telefono 0732 6011
Fax [phone]
info[email protected]