Maintenance; Removing & Replacing; Heater Element - Ariston NUOS FS 200 Instructions For Installation And Servicing

8.

MAINTENANCE

8.1 R & R
EMOVING
E H E
LECTRIC EATER
F . 8.1 E
IG A LECTRIC
CAUTION
Removing flange screws E
will release the stored
water.
38
In the event of the electric heater failing or to replace its anode, the electric
EPLACING
heater has to be removed from the NUOS.
LEMENT
Only replace with approved Ariston parts.
H E
EATER LEMENT
Removal Procedure for Inspection
Refer to fig. 8.1A.
1.
2.
3.
4.
To descale flange (F) or to replace the magnesium anode the flange (F)
has to be removed by removing 5 bolts (E), this necessitates draining the
cylinder - see 6.20.
WARNING
Where the room volume is less than the practical limit (see
5.2, page 18) always ensure that the door to the room does
not have a self-closing device before proceeding with any
maintenance.
Isolate mains electrical supply to the NUOS by switching off and
removing fuse.
Unscrew 5 screws (A) and remove cover (B).
Disconnect wires and withdraw heating element (C).
Replace element and refit, ensure wires are connected correctly.
For wiring see 5.9