Magnesium Anode(S) - andrews OFS25 Installation Manual, Operation And Service Manual

SERVICING
Magnesium sacrificial anode(s) is (are) fitted to the top of the storage vessel. The anode(s)
will prevent corrosion of the storage vessel. Anode condition should be checked annually
and replaced if excessive wear is present. We recommend that the anode(s) are replaced
annually.
1. Withdraw each anode using 1 1/16in AF socket spanner. A new anode measures 21 mm
diameter.
2. An anode should be replaced, if, at any point it's length, the diameter is reduced to half,
or less of original. Particular attention should be paid to the ends.
3. If the anode is encrusted with limescale, it should be either wire brushed to reveal bright
metal or replaced.
4. For models OFS25 & OFS29 withdraw the hot water outlet nipple/anode and replace
(See Fig. 9) - Refer to parts list pages 32 & 32.
5. Replace all anodes with service anode (articulated) part no. C333.
OFS25 & OFS29
Disconnect pipe fittings and turn nipple anti-clockwise to remove.
Where Correx TM anodes are fitted, no maintenance is necessary.
SECTION 6
MAGNESIUM
ANODE(S)
Fig. 9
25