2.6 Connection to the flue
The diameter of the flue connection pipe must not be less than that of the connection on the anti-backflow device.
Starting from the anti-backflow device it must have a vertical section at least 50 cm long. Current standards must be
complied with regarding the dimensioning and installation of the flues and connection pipe.
TAURA 32 MC
24
Cod. 3540F130 - 03/2007 (Rev. 00)
Fig. 2
2.5 Electrical Connections
Connection to the electrical grid
The boiler must be connected to a single-phase, 230 Volt-50 Hz electric line.
The unit’s electrical safety is only guaranteed when correctly connected to an efficient earthing system
executed according to current safety standards. Have the efficiency and suitability of the earthing system
checked by professionally qualified personnel. The manufacturer is not responsible for any damage caused
by failure to earth the system.
The boiler is prewired and provided with a Y-cable and plug for connection to the electricity line. The connections
to the grid must be made with a permanent connection and equipped with a bipolar switch whose contacts have a
minimum opening of at least 3 mm, interposing fuses of max. 3A between the boiler and the line. It is important to
respect the polarities (LINE: brown wire / NEUTRAL: blue wire / EARTH: yellow-green wire) in making connections
to the electrical line. During installation or when changing the power cable, the earth wire must be left 2 cm longer
than the others.
The user must never change the unit’s power cable. If the cable gets damaged, switch off the unit and have it
changed solely by professionally qualified personnel. When changing the cable use solely
“HAR H05 VV-F”
3x0.75 mm2 cable with a maximum outside diameter of 8 mm.
Room thermostat
CAUTION: THE ROOM THERMOSTAT MUST HAVE CLEAN CONTACTS. CONNECTING 230 V. TO THE
TERMINALS OF THE ROOM THERMOSTAT WILL IRREPARABLY DAMAGE THE ELECTRONIC CARD.
When connecting a remote timer control or a timer switch, do not take the power supply for these devices
from their cut-out contacts. Their power supply must be taken with a direct connection from the mains or
with batteries, depending on the kind of device.
Access to the electrical terminal board
The terminal block is at the bottom of the boiler (see fig. 2)
Room
thermostat
Remote
timer control
(Opentherm)
Or
Summary of Contents for Taura 32 MC
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