48
COMMISSIONING AND MAINTENANCE
3.8
Extraordinary cleaning
3.8.1
Cleaning the storage cylinder
ONLY FOR GITRÈ B/100 MODELS
Extraordinary cleaning may be required if the performance of
the storage cylinder deteriorates or if the water supply is par-
ticularly hard.
Perform the following operations before beginning any clean-
ing:
− Remove the top panel (1);
− Close the DHW circuit shut-off cock;
− Connect a plastic hose to the hose union and partly emp-
ty the storage cylinder through the storage cylinder drain
cock;
− Pull the sensors out of their sockets;
− Remove the screws (2) fixing the bracket (3) to the casing;
− Remove the screws (4) fixing the flange (5) in place, and
remove the flange;
1
2
3
4
5
− Clean inside the storage cylinder and remove any resi-
dues through the access hole;
− Check the magnesium anode (6) for wear (Replace if nec-
essary.);
− Check the condition of the sensor holders (7);
− Check the condition of the seal (8).
8
7
6
On completion of cleaning, refit all removed parts in the reverse
order, taking care to ensure the efficiency of the seals.
9
Insert the DHW temperature sensor (1) into the shorter sen-
sor holder and the TB storage cylinder thermostat sensor (2)
into the longer sensor holder. Push the sensors all the way
into their sockets. The socket for the TB thermostat sensor
has a raised lip above the surface of the cap.
1
2
N.B.:
Tighten the fixing nuts, proceeding diagonally around
the flange to apply pressure uniformly around the seal.
3.9
External cleaning
Clean the boiler’s casing panels and control panel with a soft
cloth damped in soapy water.
To remove marks from the boiler casing, use a cloth damped in a
50% mix of water and denatured alcohol or a suitable cleaning
product.
Wipe the boiler dry after cleaning it.
0
Do not use abrasive products, petrol or triethylene.
