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TECHNICAL ASSISTANCE SERVICE
TECHNICAL ASSISTANCE SERVICE
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MAINTENANCE
Scheduled maintenance is essential for the safety, efficiency and
long working life of your storage cylinder. Proper maintenance
also reduces energy consumption and ensures reliability over
time. Have your storage cylinder serviced either by the manu-
facturer’s Technical Assistance Service or by a qualified heating
engineer at least once a year.
Perform the following operations before beginning any main-
tenance:
− Switch the electricity supply to the storage cylinder’s
valve group and to any associated boiler OFF at the main
switch and at the control panel
− Close the shut-off cocks for the domestic hot water circuit
− Drain the storage cylinder’s DHW (secondary) water cir-
cuit.
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CLEANING AND REMOVING INTERNAL COMPONENTS
EXTERNAL CLEANING
Clean the outside of the storage cylinder with a soft cloth
damped in soapy water. To remove stubborn marks, use a cloth
damped in a 50% mix of water and denatured alcohol or a suit-
able cleaning product. Dry the storage cylinder after cleaning it.
0
Do not use abrasive products, petrol or triethylene.
INTERNAL CLEANING
Removing and checking the first magnesium anode
If the magnesium anode is fitted in the top of the storage cylin-
der, remove the cover (1) and insulation (2), and use a suitable
wrench to unscrew the anode holder (3).
If the magnesium anode is fitted in position (A), remove the
cover (4) and use a suitable wrench to unscrew the anode hold-
er (3).
Check the magnesium anode for wear and replace it if neces-
sary.
On completion of cleaning, follow the above steps in the reverse
order to refit all removed parts.
NOTE: Tighten the anode plug to a torque of 25-30 Nm.
1
2
3
A
3
4
Cleaning inside the storage cylinder
− Remove the screws (4)
− Remove the flange cover (5)
− Remove the insulation (6)
− Unscrew the bolts (7) and remove the cover (8)
− Remove the seal (9)
− Clean inside the storage cylinder and remove any resi-
dues through the access hole.
9
8
7
6
5
4
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Check the seal for wear and replace it if necessary.
On completion of cleaning, follow the above steps in the reverse
order to refit all removed parts.
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Tighten the bolts (7), proceeding diagonally around the
flange to apply pressure uniformly around the seal.
− Fill the storage cylinder’s DHW (secondary circuit) and
check that there are no leaks from any of the seals
− Check the performance of the storage cylinder.
