GENERAL
6
This
TAU UNIT
condensing boiler is designed to pro-
duce hot water for central heating systems. If used in
conjunction with a remote storage cylinder, it can also
produce domestic hot water. The innovative boiler body
uses the condensation of steam from the combustion
gases to recover extra energy, with obvious benefits in
terms of running costs. The boiler body is made from
highly corrosion resistant stainless steel to guarantee an
extended working life and excellent reliability. The boi-
ler body conforms to the strictest Italian and European
standards governing the migration of heavy metals to
condensate. A premixed micro-flame burner guarantees
extremely low emissions.
PRODUCT DESCRIPTION
Paese di destinazione:
Tipo di apparecchio
Caldaia categoria
:
:
B23P
II
2H3P
Pressioni di alimentazione gas:
Regolazione effettuata dal costruttore:
G20 - 20 mbar
ATTENZIONE
Leggere attentamente il libretto istruzioni
prima di installare e mettere in servizio
l'apparecchio.
Questo apparecchio può essere installato e
funzionare solo in locali permanentemente
ventilati, in conformità alle normative vigenti.
(Laterale DX)
068786_1_E4
G20
20 mbar
G31
37 mbar
Cod.
N°
Qn(max)
Pms
bar
kW
RIELLO S.p.A.
Via Ing.Pilade Riello 7
Mod.
37045 Legnago (VR) - ITALY
T067697I0
The control system applies compensated control logic
to maximise energy recovery in all seasons. The combu-
stion gases are cooled to a temperature near that of the
central heating return before they leave the boiler body.
This makes it possible to use plastic flue pipes instead of
metal ones, with significant savings in overall installation
costs.
Special accessories are available to increase the num-
ber of central heating circuits served, to cascade a
number of
TAU UNIT
boilers and to connect single or
double return lines to suit the needs of the installation,
improving heat stratification in the water inside the body
and optimising performance.
PAE
SE
DI
D
ES
TIN
AZI
ON
E: - P
AY
S
D
E DE
ST
IN
AT
ION
:
LAN
D
VON
BE
ST
EMMI
N
G
: - BE
ST
IMMU
N
G
SL
A
N
D:
BESTEMMELSESLAND:
T067697GE
CA
LDA
IA R
EGOL
A
TA
PE
R: - CHAUD
IERE R
EGLEE PO
UR
:
VER
W
ARM
IN
GSK
ETEL I
N
GESTELD
OP:
K
ESSEL GE
R
EGELT F
ÜR: - KJ
EL I
NN
STILT FOR
:
European Directive
92/42/EEC:
η =
η =
η =
η =
N°
230 V ~ 50Hz
W
Pms= bar T = °C
Qn(min) =
Pn(min) =
NOx:
IP
P.min.G20= mbar
Qn(max =
Pn(max) =
Cod.
kW
kW
kW
kW
kW
kW
kW
kW
RIELLO S.p.A.
Via Ing.Pilade Riello
737045 Legnago (VR) - ITALY
Categoria:
Categorie:
Kategorie:
Kategori:
Combustibile:
Combustible:
Brandstof:
Brennstoff:
Drivstoff:
T067697GE
Caldaia a condensazione - Chaudière à condensation
Brennwertkessel - Condenserende verwarmingsketel - Kondenskjel
G25 BE
C63,C63x verboden in België - C63,C63x défendu en Belgique
>-
Max. flue gas loss: 7 %
/
IDENTIFICATION
The boiler is identified by the following plates and labels:
- Data label
This lists the boiler's technical
specifications and performance.
- Serial number plate
This specifies the
serial number,
model, and furnace
power.
This
TAU UNIT
condensing boiler is equipped with the following safety devices:
An automatic
safety thermostat
that trips at 100° and
shuts down the burner.
An electronic safety
system that monitors flow rate
through the central heating system using two sensors,
one on the flow pipe and the other on the return pipe.
This safety system forces the boiler to perform a safety
shutdown if flow rate is insufficient or not detected.
Flue gas safety thermostat.
A flue gas thermostat in the bottom of the heat exchanger
that triggers an error condition if flue gas temperature
exceeds 75°C. A flue gas temperature sensor in the
bottom of the heat exchanger that triggers a transient
(temporary) error if flue gas temperature exceeds 85°C
and a permanent error if it exceeds 90°C.
A fan safety system
that uses a Hall effect speed sensor
to continuously monitor fan speed.
b
The activation of a safety device indicates a
potentially dangerous malfunction in the modula-
tion system. Contact
r
's Technical Assistance
Service immediately.
You may attempt to restart the boiler after a short delay
(see “Preparing for initial start-up”).
a
Never start the boiler up even for a short period if
the safety devices are not functioning correctly or
have been tampered with.
b
Safety devices must only be replaced by
r
's
Technical Assistance Service using original spare
parts. Refer to the spare parts catalogue supplied
with the boiler.
Always check that the boiler is functioning correctly after
any repairs.
SAFETY DEVICES
Gas label
This is applied at the rear
of the boiler and specifies
the type of gas used by
the boiler, and the count-
ry in which the boiler is
destined for use.
- G20 label
