4.5. 1
Chimney sweep function (fig. 21)
To check boiler combustion, press the
installer's key
for a few seconds. The
chimney sweep function will switch on and
will continue for 15 minutes.
From that moment, the boiler will start
working in heating mode at maximum
power, with cut off at 80°C (176°F) and re-
ignition at 70°C (158°F). (ATTENTION!
Temperature may reach excessive values
when using unprotected low temperature
plants. Before activating the chimney
sweep function make sure that the radia-
tor valves or eventual zone valves are
open).
The test can also be carried out with the
boiler working in D.H.W. mode.
For this, after activating the chimney sweep
function, open one or more hot water fau-
cets. Under these conditions, the boiler will
function at maximum power with the
D.H.W. cir cuit kept at between 60° C
(140°F) and 50°C (122°F). During the test,
the hot water faucets must remain open.
If the key
and
are pressed during
the 15 minutes of the chimney sweep func-
tion, the boiler will be brought respectively
to maximum and minimum power.
The chimney sweep function will automa-
tically switch off after 15 minutes or
is pressed again.
when the key
4.5.2
Cleaning the filter "Aqua Guard
Filter System" (fig. 22)
To clean the filter, close the delivery/return
on/off taps, turn off the power to the con-
trol panel, remove the casing and empty the
boiler using the drain provided.
Place a container for collection underneath
the filter, unscrew the cap and proceed to
clean the filter, removing impurities and
limestone deposits.
Check the seal o-ring before reassembling
the cap with the filter.
4.5.3
Venting maintenance
The venting system shall be visually inspec-
ted for deterioration or deposits every 6
months it is recommended to periodically
inspected the intake and the exhaust termi-
nal for debris or snow removed from
blocking the termination.
Any dirt within the vent shall be removed
with a soft brush.
As common vent can not be used in positi-
ve pressure exhaust systems.
4.5.4
Fan and pump
The pump and fan don't need any lubrifica-
tion.
ENG
FR
Fig. 21
Fig. 22
39