Sime FORMAT DEWY.zip 25 BF, Installer'S Instructions

Page: 87 / 116

4.5 REMOVAL OF OUTER CASING
It is possible to completely disassemble
the shell for an easy maintenance of the
boiler (fig. 23).
4.6 CLEANING AND
MAINTENANCE
Preventive maintenance and checking of
efficient operation of equipment and safety
devices must be carried out exclusively by
authorized technical personnel.
4.6.1 Cleaning the “Aqua Guard” filter
(fig. 24)
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 and proceed to clean the filter,
removing impurities and limestone depo-
sits. Check the seal o-ring before reassem-
bling the cap with the filter.
4.6.2 Chimney sweep function
To carry out the verification of combustion
in the boiler, turn the selector and stop on
the position ( ) until the green/orange bi-
colour led starts to blink.
From that moment the boiler will start func-
tioning in heating mode at the maximum
power, with switching off at 80°C and
restarting at 70°C.
Before activating the chimney sweep func-
tion make sure that the radiator valves or
eventual zone valves are open.
The test may be carried out also during hot
water functioning. To test, simply run hot
water from one or more faucets after turn-
ing on the chimney sweep function. Even in
this condition the boiler functions at the
maximum temperature always with the pri-
mary controlled between 80°C and 70°C.
During the entire duration of the testing the
hot water taps must remain open. After
verifying the combustion the boiler should
be switched off by placing the selector on
the ( OFF ) position; then return the selector
to the desired function.
ATTENTION: After about 15 minutes the
chimney sweep function automatically
deactivates.
85
IT
ES
PT
GB
RUS
Led bicolore verde/arancio
lampeggiante
Fig. 25
Fig. 24
1
2
Fig. 23
Blinking green/orange
bi-colour led