NexSirius is a family of RIELLO split heat pumps, ideal for floor-heating and/or with fan coils and for DHW production. NexSirius consists
of an outdoor INVERTER unit to be matched with an indoor hydronic unit NexBox. The heating capacity can modulate from 30% to 120%,
while ensuring silent operation and high efficiency.
NexBox, the indoor unit of the system, can be easily connected to floor-heating, fan coils, low temperature radiators, etc. thanks also to different built-in components: circulator, expansion vessel, filter, air vent valve and flow switch.
NexBox is available in two versions:
- Version A): Heating/Cooling, with housing for an electrical resistance
- Version B): Heating/Cooling, without housing for an electrical resistance
Both versions of NexBox can be matched with the “3-ways valve kit”, that can be easily combined with a boiler (for the alternate
operation only) and with a tank for the DHW production.
The whole system is controlled by an electronic board like RIELLOtech, which allows to manage also complex installations.
NexSirius dimensions are among the most reduced on the market with a height of only 735 mm, a width of 410 mm and a depth of 260
mm. The system is extremely flexible, working with an external temperature till -15°C and producing DHW up to 55 °C.
NexSirius comes in four sizes (from 5 to 11,5 kW), ensuring high efficiency and is A/A class rated, which is ideal for all kinds of residential
application for heating and cooling.
- Dc-inverter technology with Twin-Rotary compressor
- Reduction of starting current thanks to the inverter technology
- A/A class efficiency
- It can be connected to low temperature radiators, floor-heating and fan coils
- Heating temperature up to +55°C
- Hybrid operation (heat pump or, alternatively, boiler)
- Fast and simple installation; only the water connection is required
- Separated hydronic system to prevent any risk of freezing
- Extremely reduced dimensions.




NEXSIRIUS SERIES

Koda Model Datoteke
20022322 NexSirius 006 M
20102843 NexBox 007 N
20104207 SET NexSirius 006
20022323 NexSirius 007 M
20102843 NexBox 007 N
20104213 SET NexSirius 007
20022324 NexSirius 010 M
20102844 NexBox 012 N
20104219 SET NexSirius 010
20022325 NexSirius 013 M
20104222 SET NexSirius 012
20102839 NexSirius 015 T
20102846 NexBox 015 N
20104224 SET NexSirius 015
20102840 NexBox 007 RN
20104205 SET NexSirius 006R
20022323 NexSirius 007M
20104210 SET NexSirius 007R
20102841 NexBox 012RN
20104216 SET NexSirius 010R
20022325 NexSirius 013 M
20104221 SET NexSirius 012R
20102842 NexBox 015 RN
20104223 SET NexSirius 015R

ACCESSORIES

Koda Model Datoteke
4383500 RIELLO 7200 300 HP
4383501 RIELLO 7200 500 HP
20028093 Puffer Riello 7000 Aci 200 Plus
20028094 Puffer Riello 7000 Aci 300 Plus
20028095 Puffer Riello 7000 Aci 400 Plus
20028096 Puffer Riello 7000 Aci 500 Plus
4383270 1,5 kW electrical single-phase resistance kit for 300 HP and 7000 Aci Plus
4383504 Solar coil exchanger 0,8 m2 for 300 HP
4383505 Solar coil exchanger 1,2 m2 for 500 HP
20028567 External air probe
NEXSIRIUS

NexSirius 006 M (20022322)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 007 N (20102843)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 006 (20104207)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 007 M (20022323)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 007 N (20102843)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 007 (20104213)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 010 M (20022324)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 012 N (20102844)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 010 (20104219)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 013 M (20022325)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 012 (20104222)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 015 T (20102839)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 015 N (20102846)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 015 (20104224)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 007 RN (20102840)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 006R (20104205)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 007M (20022323)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 007R (20104210)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 012RN (20102841)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 010R (20104216)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexSirius 013 M (20022325)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 012R (20104221)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

NexBox 015 RN (20102842)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

SET NexSirius 015R (20104223)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Nexsirius (IT-EN) Italian, English
Instructions Nexsirius (IT) Italian
Instructions Nexsirius utente EN English
Certification Certificato PED English
Installation Manual Pompa di Calore NexSirius Portuguese, English
Installation Manual Pompa di Calore NexSirius Slovenian , Croatian
User manual NexSirius Control Portuguese
User manual NexSirius Control Croatian
User manual NexSirius Control Slovenian

RIELLO 7200 300 HP (4383500)

Tip Description Languages Download
Technical sheet scheda tecnica RIELLO 7200 HP Italian
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Bollitore 7200 HP Italian, English, German, French, Dutch
Energy label Etichetta CLASSE ENERGETICA Norwegian, LANGUAGE

RIELLO 7200 500 HP (4383501)

Tip Description Languages Download
Declaration of conformity Dichiarazione di conformità Italian, English
Installation Manual Bollitore 7200 HP Italian, English, German, French, Dutch
Energy label Etichetta CLASSE ENERGETICA Italian

Puffer Riello 7000 Aci 200 Plus (20028093)

Tip Description Languages Download
Instructions 7000 ACI PLUS Italian
Declaration of conformity Dichiarazione di conformità Italian, English
Instructions 7000 ACI PLUS English
Instructions 7000 ACI PLUS French
Instructions 7000 ACI PLUS German
Energy label Etichetta ENERGETICA Norwegian, LANGUAGE
Declaration of conformity Dichiarazione Solare termico per detrazioni fiscali e conto termico Italian

Puffer Riello 7000 Aci 300 Plus (20028094)

Tip Description Languages Download
Instructions 7000 ACI PLUS Italian
Declaration of conformity Dichiarazione di conformità Italian, English
Instructions 7000 ACI PLUS English
Instructions 7000 ACI PLUS French
Instructions 7000 ACI PLUS German
Energy label Etichetta ENERGETICA Norwegian, LANGUAGE
Declaration of conformity Dichiarazione Solare termico per detrazioni fiscali e conto termico Italian

Puffer Riello 7000 Aci 400 Plus (20028095)

Tip Description Languages Download
Instructions 7000 ACI PLUS Italian
Installation Manual eti_7000aci-plus400_E0 Italian
Declaration of conformity Dichiarazione di conformità Italian, English
Instructions 7000 ACI PLUS English
Instructions 7000 ACI PLUS French
Instructions 7000 ACI PLUS German
Energy label Etichetta CLASSE ENERGETICA Italian
Declaration of conformity Dichiarazione Solare termico per detrazioni fiscali e conto termico Italian

Puffer Riello 7000 Aci 500 Plus (20028096)

Tip Description Languages Download
Instructions 7000 ACI PLUS Italian
Declaration of conformity Dichiarazione di conformità Italian, English
Instructions 7000 ACI PLUS English
Instructions 7000 ACI PLUS French
Instructions 7000 ACI PLUS German
Energy label Etichetta CLASSE ENERGETICA Norwegian, LANGUAGE

1,5 kW electrical single-phase resistance kit for 300 HP and 7000 Aci Plus (4383270)

Tip Description Languages Download
Installation Manual Foglio ISTRUZIONI KIT Italian, French, English, German, Spanish

Solar coil exchanger 0,8 m2 for 300 HP (4383504)

Tip Description Languages Download
Installation Manual Foglio ISTRUZIONI KIT Italian, English, German

Solar coil exchanger 1,2 m2 for 500 HP (4383505)

Tip Description Languages Download
Installation Manual Foglio ISTRUZIONI KIT Italian, English, German

External air probe (20028567)

Tip Description Languages Download
Installation Manual Libretto Istruzioni sonda esterna Italian
Installation Manual Foglio ISTRUZIONI KIT Portuguese
Installation Manual Foglio ISTRUZIONI KIT Croatian
Installation Manual Foglio ISTRUZIONI KIT Slovenian