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15 teMPorary sHUtdoWn
If you are going away for a short period of time like a we-
ekend or a short holiday, etc., and outdoor temperatures
are going to remain above ZERO, proceed as follows.
- Adjust the storage cylinder thermostat to its minimum
setting.
b
If outdoor temperature may drop below ZERO (risk
of freezing) perform the operations described in the
"Preparing for extended periods of disuse" section.
16 PreParing for extended
Periods of disUse
If the storage cylinder is not going to be used for an exten-
ded period of time, perform the following operations.
- Cover the solar collectors with suitable protection.
- Switch the electricity supply to the storage cylinder's val-
ve 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 cir-
cuit.
b
Drain the domestic hot water circuit if there is any risk
of freezing.
Contact your local
Technical Assistance Centreif you
B
encounter any problems in completing the above proce-
dure.
17 Maintenance
Scheduled maintenance is essential for the safety, efficien-
cy and long working life of your storage cylinder. Proper
maintenance also reduces energy consumption and ensu-
res reliability over time. Have your storage cylinder serviced
either by the manufacturer's Technical Assistance Centre or
by a qualified heating engineer at least once a year.
Perform the following operations before beginning any
maintenance.
- Switch the electricity supply to the storage cylinder's val-
ve 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 cir-
cuit.
- Drain the storage cylinder's DHW (secondary) water cir-
cuit
18 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 suitable cleaning product. Dry the storage cylinder
after cleaning it.
a
Do not use abrasive products, petrol or triethylene.
INTERNAL CLEANING
Removing and checking the magnesium anode
- Remove the plug (1) and insulation (2), and use a sui-
table wrench to unscrew the anode holder (3).
- Check the magnesium anode for wear and replace it if
necessary.
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.
3
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.
b
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.
1
2
13
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