Ferroli DOMIcondens HE 26 C Instructions For Use, Installation And Maintenance page 6

Accessing the electrical terminal block
Follow the instructions given in fig. 10 to access the electrical connections terminal block.
The layout of the terminals for the various connections is also given in the wiring diagram
in fig. 28.
139
fig. 10 - Accessing the terminal block
3.6 Fume ducts
Important
The unit is "type C" with sealed chamber and forced draught; the air inlet and fume outlet
must be connected to one of the following extraction/suction systems. Before installation,
check and carefully observe the above prescriptions. Also, comply with the provisions
concerning the positioning of wall and/or roof terminals and the minimum distances from
windows, walls, vents, etc.
Expansion
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 any deformation, leave an expansion space of approx. 2 ÷ 4 mm for
every metre of pipe.
Baffles
Boiler operation requires fitting the baffles supplied with the unit, according to that given
in the following tables.
Before inserting the fume exhaust pipe, check the presence of the right baffle (when it is
to be used) and that it is correctly positioned. The boilers are fitted standard with the
smallest diameter baffle. To replace the baffle (ref. 1 - fig. 11), proceed as indicated in
fig. 11.
6
EN
138
3 4 5
3
4
5
6
1
fig. 11
cod. 3540Z850 - 12/2010 (Rev. 00)
DOMIcondens HE 26 C
Connection with coaxial pipes
Standard coaxial installation
Rear outlet
Side view
72
196
6
330
Other coaxial connections
C
5x
fig. 13 - Examples of connection with separate pipes (
Table. 2 - Typology
Type Description
C1X Wall horizontal exhaust and intake. The inlet/outlet terminals must be concentric or close enough to be
undergo similar wind conditions (within 50 cm)
C3X Roof vertical exhaust and intake. Inlet/outlet terminals like for C12
C5X Wall or roof exhaust and intake separate or in any case in areas with different pressures. The exhaust
and intake must not be positioned on opposite walls.
C6X Intake and exhaust with separately certified pipes (EN 1856/1)
B2X Intake from installation room and wall or roof exhaust
IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION
For coaxial connection, fit the unit with one of the following starting accessories. For the
wall hole dimensions, refer to the figure on the cover. Any horizontal sections of the fume
exhaust must be kept sloping slightly towards the outside, to prevent condensate from
flowing back towards the unit.
041002X0
fig. 14 - Starting accessory for coaxial ducts
Side outlet
Between
10 e 60 mm
Front view
125
041025G0
200
Drill the wall 10÷20 mm
more than the
pipe diameter
400
fig. 12 - Standard coaxial installation
B
2x
Ø 102 Ø 127
Ø 61.5 Ø 80.5
041006X0
041001X0
Between
10 e 60 mm
125
200
C
1x
= Air / = Fumes)