Restarting The Solar Storage Tank After Maintenance - Bosch WTS Serie Notice D'installation Et D'entretien

Maintenance
The solar storage tank warranty is void if the magnesium
anodes are not maintained properly.
Visual inspection of the magnesium anodes
B Shut off the cold water inlet.
B Ensure that there is no pressure in the storage tank by opening the air
bleeder valve.
B Loosen the 6 hex bolts [1] and remove the inspection cover [2].
B Remove the soft foam insulation.
B Undo the 8 hex bolts [3] and pull out the flange with the magnesium
anodes [4].
Never bring the magnesium anode surface into contact
with oil or grease.
B Keep everything clean.
B Check the magnesium anode for decomposition.
B Replace the magnesium anode rod if its diameter has been reduced to
about 1/2" (12 mm) ( Replacing the magnesium anodes, page 16).
Fig. 19 Checking the magnesium anodes
[1] Hex nut
[2] Clean Out cover
[3] Hex bolt
[4] Flange with 2 magnesium anodes
[5] Cleanout cover gasket
Replacing the magnesium anodes
B Remove the 2 hex nuts [1].
B Remove serrated washer [2], washer [3] and gasket [4].
B Replace magnesium anode [5] and screw onto flange using a torque
of 6 lbf-ft (8Nm).
16
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Fig. 20 Replacing the magnesium anodes
[1]
[2]
[3]
[4]
[5]
8.2
5
Only use genuine spare parts.
B Insert new gasket (
B Install flange in the solar storage tank using 8 hex bolts (hand tight).
B Then use a torque wrench to tighten the hex bolts (diagonally) to 18.5
6 720 648 083-11.2ITL
B Check the tightness of the magnesium anode connection.
B Replace the soft foam installation and reinstall the clean out cover.
Hex bolt M8
Serrated washer
Washer
Gasket
2 magnesium anodes

Restarting the solar storage tank after maintenance

NOTICE: Risk of damage in the event of a defective
gasket!
B To prevent the solar storage tank from leaking, install
a new gasket on the flange after cleaning and
maintenance.
Fig. 19 , [5]).
- 22 lbf-ft (25 - 30 Nm).
WST50 EL / WST80 EL / WST119 EL – 6 720 648 081 (2012/09)