21
Installation info
fig. 17
152
100
95
Up to
ΔΔ
ΔΔ
Δ P = 20 Pa
Rubber foam
gasket
Diaphragm
Ø 42
fig. 18
It is not allowed to position the 2 termi-
nals in opposite walls, see configuration
type C52.
DIMENSIONS FOR CONNECTION TO COAXIAL FLUE GAS DUCTS
2.2.10 - FLUE GAS DISCHARGE
AND AIR SUCTION WITH
DUAL DUCTS WITH 80 mm
DIAMETER
NB: The maximum allowable pressure loss,
irrespective of the type of installation, must
not exceed 50 Pa .
For all installations with a pressure loss of the
ducts not exceeding 20 Pa, the diaphragm
supplied with the boiler must be installed insi-
de the flue gas outlet pipe (see fig. 18).
WARNING! In case the flue duct
has to cross walls or floors, or if
it is easily reachable, it is ne-
cessary to foresee a convenient
insulation of such a duct. The
flue duct, during the operation
of the boiler can reach tempera-
tures higher than 120°C.
IMPORTANT
Flue gas pressure switch operation
The boiler is fitted with a device control-
ling flue gas pressure.
This device shuts down the boiler in the
event of a malfunction.
This situation is indicated by the failure led
lighting on the display; by pressing the
reset push-button the failure code “AF” is di-
splayed and the boiler will repeat it's ignition
sequence. If the reset button is not pressed
the boiler will in any case repeat it's ignition
sequence after 10 minutes.
WARNING: Per For the smo-
ke outlet configuration (see
fig. 18) it is necessary to clo-
se the hole of air entry ''1''
with the provided for closing
Closing cover
with gasket in
neoprene
cover and the gasket delivered with the
boiler. Note: in case the air aspiration will
be effected by the hole ''1'', close the hole
''2''.
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