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Room thermostat (optional)
B
CAUTION: The room thermostat must have clean contacts. CONNECTING
230 V. TO THE TERMINALS OF THE ROOM THERMOSTAT WILL IRREPA-
RABLY DAMAGE THE ELECTRONIC CARD.
When connecting a remote timer control or a timer switch, do not take the pow-
er 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.
External probe (optional)
Connect the probe to the respective terminals. The maximum permissible length of the
electric cable connecting the boiler - external probe is 50 m. A common 2-wire cable can
be used. The external probe should preferably be installed on the North, North-West wall
or on the wall facing most of the main living-room. The probe must never be exposed to
the early morning sun, and in general (as far as possible) it should not be exposed to
direct sunlight; protect it if necessary. In any case, the probe must not be installed near
windows, doors, vents, flues or heat sources that could affect the reading.
fig. 19 - Inadvisable positioning of external probe
Accessing the electrical terminal block
Follow the instructions given in fig. 20 e fig. 29 to access the electrical connections ter-
minal block. The layout of the terminals for the various connections and the description
of the components are also given in the wiring diagram in fig. 35.
fig. 20 - Accessing the terminal block
3.6 Fume ducts
Important
The unit is a "C type" with sealed chamber and forced draught, the air inlet and fume out-
let must be connected to one of the following exhaust/inlet systems. The unit is approved
for operation with all the Cxy flue configurations indicated on the data plate (some con-
figurations are given by way of example in this section). Some configurations may be ex-
pressly limited or not permitted by law, standards or local regulations. Before proceeding
with installation, check and carefully observe the above prescriptions. Also, comply with
the provisions on the positioning of wall and/or roof terminals and the minimum distances
from windows, walls, vents, etc.
B
This C-type unit must be installed using the inlet and fume exhaust ducts sup-
plied by the manufacturer in accordance with UNI-CIG 7129/92. Failure to use
them automatically invalidates every warranty and relieves the manufacturer of
any liability.
For fume exhaust pipes longer than 1 metre, during installation take in account
A
the natural expansion of the materials when the boiler is operating.
To prevent deformations, leave an expansion space of approx. 2 ÷ 4 mm for
every metre of pipe.
38
EN
ECONCEPT TOP MICRO C
Connection with coaxial pipes
fig. 21 - Examples of connection with coaxial pipes (
For coaxial connection, fit the unit with one of the following starting accessories. For the
wall hole dimensions, refer to sec. 31. Any horizontal sections of the fume exhaust must
be kept sloping slightly towards the boiler, to prevent condensate from flowing back to-
wards the outside and causing dripping.
Ø 100
Ø 60
041002X0
Before carrying out installation, check with table 2 that the maximum permissible length
is not exceeded, taking into account that every coaxial bend gives rise to the reduction
indicated in the table. For example, a Ø 60/100 duct comprising a 90° bend + 1 horizontal
metre has a total equivalent length of 2 metres.
Table. 2 - Max. length coaxial ducts
Max. permissible length
Reduction factor 90° bend
Reduction factor 45° bend
Connection with separate pipes
C
53
fig. 23 - Examples of connection with separate pipes (
For the connection of separate ducts, fit the unit with the following starting accessory:
Before installation, make sure the maximum permissible length has not been exceeded,
by means of a simple calculation:
1.
Completely establish the layout of the system of split flues, including accessories
and outlet terminals.
2.
Consult the table 4 and identify the losses in m
ponent, according to the installation position.
3.
Check that the sum total of losses is less than or equal to the maximum permissible
length in table 3.
cod. 3540R95
- Rev. 0 - 10/201
Ø 127
Ø 80
041006X0
fig. 22 - Starting accessory for coaxial ducts
Coaxial 60/100
5 m
1 m
0.5 m
Ø81
041003X0
fig. 24 - Starting accessory for separate ducts
(equivalent metres) of every com-
eq
= Air /
= Fumes)
041001X0
Coaxial 80/125
15 m
0.5 m
0.25 m
B
C
23
13
= Air /
= Fumes)
Ø80
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