38
CLEANING THE APPLIANCE
Set-up conditions
•
Boiler shut down through the main power switch
•
Power supply cable disconnected from the mains and the
boiler
•
Boiler empty if the heat exchanger needs to be flushed.
Procedure
This should be performed when the appliance is
used in a dusty/dirty environment, and before &
after short/long term storage, as required.
1. Remove the required access panels, refer to
“Removing
and Installing the access Panels” on page 34.
2. Using compressed air, blow away the dirt from the body
of the boiler.
3. To clean the inside of the heat exchanger:
•
Open the cleaning connection on the right side and
insert water hose.
•
Open drain valve at the bottom of the boiler
•
Flush the inside of the heat exchanger with water to
remove all deposits of sludge and scale.
•
Once the water draining out of the boiler is clear, close
the water supply and remove hose.
•
Make sure that all the water flows out of the boiler.
•
Close the cleaning connection and the draining valve.
4. Reinstall the access panels, refer to
“Removing and In-
stalling the access Panels” on page 34.
5. Using a clean soft cloth and clear water, wipe the exterior
of the boiler.
Follow-on task(s)
None
REPLACING THE EXPANSION VESSEL
Set-up conditions
•
Boiler shut down through the main power switch
•
Power supply cable disconnected from the mains and the
boiler
•
Boiler empty and stop valves closed
Procedure
1. Remove the bottom protection cover and the top and
rear panels, refer to
“Removing and Installing the access
Panels” on page 29.
2. Release two screws (
3
) and remove the protection cover
(
1
) located above the expansion vessel (
2
).
3. Release the bottom connection (
4
) and uncouple from the
expansion vessel connection.
4. Turn the pipe to the side and lift the expansion vessel (
2
)
out of the frame.
5. Position the new expansion vessel and perform the previ-
ous steps in reverse order to reinstall it.
Follow-on task(s)
1. Fill the boiler, refer to
“Filling the System” on page 26.
2. Check the absence of leaks.
3. Restart the boiler as required, refer to
“Starting Up the
Appliance” on page 26.
1
2
x2
2
4
3
EN
Maintenance
