The high water contents vertical body boiler has two returns (high temperature and low temperature) to ensure the best operation in
condensation.
The high temperature water stratifies in the upper part of the body while the cold water accumulates in the lower part, where
condensation takes place. The boiler electronic board, with a user-friendly interface, allows to optimize the combustion, to manage a
possible remote cylinder for the production of DHW, and to manage the flow temperature in climatic mode.
The built-in electric board can be expanded by means of the RIELLOtech controls range both for cascade applications (up to 16 boilers)
and for the management of multiple systems, both high and low temperature ones.
All models are provided with an outdoor probe as standard.
The whole range is suitable for operation by means both of natural gas and LPG (the model TAU Unit 110 needs a specific LPG conversion
kit in addition).
- High quality and accuracy of the finishing
- Possibility to install directly in the boiler the hydraulics of an additional mix/direct zone by means of specific kits
(only model Tau Unit 35)
- Ease of maintenance thanks to the complete access to the internal components
- Reduced dimensions




TAU UNIT SERIES

Cod Model Documente
20011771 TAU 55 UNIT
20011772 TAU 75 UNIT
20011773 TAU 110 UNIT
20011774 TAU 150 UNIT
20011775 TAU 210 UNIT
20101210 TAU 35 UNIT

ACCESSORIES

Cod Model Documente
4031810 Condensate neutralizer N2 kit
4031811 Condensate neutralizer HN2 kit
20026803 LPG conversion kit for TAU UNIT 110
20011764 Electric kit for 1.st mix zone management
20012161 Electric kit for 2.nd mix zone management
20011194 Electric kit for 3.rd mix zone management
20012160 CLIMA TOP kit for TAU Unit 55-210
20012157 CLIMA COMFORT kit for TAU Unit
20012102 Wiring kit for cascade
4031840 Clip in communication kit
4031846 Clip in 0/10 V
4031847 Tank probe
20103507 Hydraulic kit for installation additional mix zone onboard
20103508 Hydraulic kit for installation additional direct zone onboard
4031870 Concentric kit 60/100
20102999 Remote tank kit
20008753 NTC bracket probe
TAU UNIT

TAU 55 UNIT (20011771)

Tip Descriere Languages Descarca
Certificare 163786_tauunit.pdf Engleza
Manual de instalare TAU UNIT 55-75-110 Italiana
Manual de instalare TAU UNIT 55-75-110 Franceza
Manual de instalare TAU UNIT 55-75-110 Germana
Manual de instalare TAU UNIT 55-75-110 Olandeza
Manual de instalare Libretto Schemi ELETTRICI -
Certificare Certificato CE Italiana, Engleza
Manual de instalare LIBRETTO ISTRUZIONI Italiana
Manual de instalare TAU UNIT 55-75-110 Engleza
Eticheta energetica Etichetta CLASSE ENERGETICA NEUTRAL

TAU 75 UNIT (20011772)

Tip Descriere Languages Descarca
Certificare 163786_tauunit.pdf Engleza
Manual de instalare TAU UNIT 55-75-110 Italiana
Manual de instalare TAU UNIT 55-75-110 Franceza
Manual de instalare TAU UNIT 55-75-110 Germana
Manual de instalare TAU UNIT 55-75-110 Olandeza
Manual de instalare Libretto Schemi ELETTRICI -
Certificare Certificato CE Italiana, Engleza
Manual de instalare LIBRETTO ISTRUZIONI Italiana
Manual de instalare TAU UNIT 55-75-110 Engleza

TAU 110 UNIT (20011773)

Tip Descriere Languages Descarca
Certificare 163786_tauunit.pdf Engleza
Manual de instalare TAU UNIT 55-75-110 Italiana
Manual de instalare TAU UNIT 55-75-110 Franceza
Manual de instalare TAU UNIT 55-75-110 Germana
Manual de instalare TAU UNIT 55-75-110 Olandeza
Manual de instalare Libretto Schemi ELETTRICI -
Certificare Certificato CE Italiana, Engleza
Manual de instalare LIBRETTO ISTRUZIONI Italiana
Manual de instalare TAU UNIT 55-75-110 Engleza

TAU 150 UNIT (20011774)

Tip Descriere Languages Descarca
Certificare 163786_tau_unit 150_210.pdf Engleza
Manual de instalare TAU UNIT 150-210 Italiana
Manual de instalare TAU UNIT 150-210 Franceza
Manual de instalare TAU UNIT 150-210 Germana
Manual de instalare TAU UNIT 150-210 Olandeza
Manual de instalare TAU UNIT 150-210 Engleza
Certificare Certificato CE Italiana, Engleza
Manual de instalare TAU UNIT 150-210 Swedish

TAU 210 UNIT (20011775)

Tip Descriere Languages Descarca
Certificare 163786_tau_unit 150_210.pdf Engleza
Manual de instalare TAU UNIT 150-210 Italiana
Manual de instalare TAU UNIT 150-210 Franceza
Manual de instalare TAU UNIT 150-210 Germana
Manual de instalare TAU UNIT 150-210 Olandeza
Manual de instalare TAU UNIT 150-210 Engleza
Certificare Certificato CE Italiana, Engleza
Manual de instalare TAU UNIT 150-210 Swedish

TAU 35 UNIT (20101210)

Tip Descriere Languages Descarca
Certificare Certificato CE Italiana, Engleza
Eticheta energetica Etichetta CLASSE ENERGETICA NEUTRAL
Instructiuni TAU UNIT 35 Italiana
Instructiuni TAU UNIT 35 Franceza
Instructiuni TAU UNIT 35 Germana
Instructiuni TAU UNIT 35 Engleza
Instructiuni TAU UNIT 35 Olandeza
Manualul utilizatorului TAU UNIT 35 Italiana
Manualul utilizatorului TAU UNIT 35 Germana
Manualul utilizatorului TAU UNIT 35 Engleza
Manualul utilizatorului TAU UNIT 35 Olandeza
Manualul utilizatorului TAU UNIT 35 Franceza

Condensate neutralizer N2 kit (4031810)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza
Manual de instalare Documenti del fornitore Italiana, Engleza

Condensate neutralizer HN2 kit (4031811)

Tip Descriere Languages Descarca
Manual de instalare KIT NEUTRALIZZATORE Italiana
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza
Manual de instalare Documenti del fornitore Italiana, Engleza

LPG conversion kit for TAU UNIT 110 (20026803)

Tip Descriere Languages Descarca
Manual de instalare 20026805_L0 Italiana

Electric kit for 1.st mix zone management (20011764)

Tip Descriere Languages Descarca
Manual de instalare 20012101_L1 -

Electric kit for 2.nd mix zone management (20012161)

Tip Descriere Languages Descarca
Manual de instalare 068835_L2 Italiana, Franceza, Germana, Olandeza

Electric kit for 3.rd mix zone management (20011194)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza

CLIMA TOP kit for TAU Unit 55-210 (20012160)

Tip Descriere Languages Descarca
Manual de instalare 068835_L2 Italiana, Franceza, Germana, Olandeza
Instructiuni RVS43-RVS63 Italiana
Instructiuni RVS43-RVS63 Engleza
Instructiuni RVS43-RVS63 Franceza
Instructiuni RVS43-RVS63 Germana

CLIMA COMFORT kit for TAU Unit (20012157)

Tip Descriere Languages Descarca
Manual de instalare 068835_L2 Italiana, Franceza, Germana, Olandeza
Instructiuni RVS43-RVS63 Italiana
Instructiuni RVS43-RVS63 Engleza
Instructiuni RVS43-RVS63 Franceza
Instructiuni RVS43-RVS63 Germana

Wiring kit for cascade (20012102)

Tip Descriere Languages Descarca
Manual de instalare 068835_L2 Italiana, Franceza, Germana, Olandeza

Clip in communication kit (4031840)

Tip Descriere Languages Descarca
Manual de instalare 068835_L2 Italiana, Franceza, Germana, Olandeza

Clip in 0/10 V (4031846)

Tip Descriere Languages Descarca
Manual de instalare 068848 Italiana, Franceza, Germana, Olandeza

Tank probe (4031847)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Franceza, Italiana, Olandeza, Germana

Hydraulic kit for installation additional mix zone onboard (20103507)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza

Hydraulic kit for installation additional direct zone onboard (20103508)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza

Concentric kit 60/100 (4031870)

Tip Descriere Languages Descarca

Remote tank kit (20102999)

Tip Descriere Languages Descarca
Manual de instalare Foglio ISTRUZIONI KIT Italiana, Franceza, Engleza, Germana, Olandeza

NTC bracket probe (20008753)

Tip Descriere Languages Descarca