Carel heaterSteam UR Series - Page 40

40
ENG
“heaterSteam” +0300075EN - rel. 1.2 - 29.09.2015
Fig. 10.h
14. clean the anti-adhesive  lm that may be present on the inner walls of
the boiler (see next section);
15. clean and remove the lime from the boiler and reinsert the  lm
(where needed);
16. after you have completed the maintenance interventions, reinstall
the boiler following the operations described above reversely.
Models UR020-UR080:
1. loosen the screws ( gure 10.i);
Fig. 10.i
2. unthread the top panel and remove it;
1
Fig. 10.j
3. loosen the seal strip and remove the steam pipe (1);
I
8
A
B
5
7
4
2
3
1
Fig. 10.k
4. disconnect level gauge connector (2);
5. remove the pressure regulation pipe (3), connected to the level
gauge, from boiler cover;
6. remove the cover that protects the heaters (5), loosen the fastening
nuts and remove the wires and the ground cable (7);.
7. disconnect the probe connector and remove the NTC probe from
the well (4);
8. remove the screw (A) and the screws of the rear fastening bracket (B);
9. remove the boiler sliding it onto the guides (8);
10. remove the outer insulating mattress;
11. unscrew and remove the nuts (10) to raise the cover and remove it
from the boiler;
10
Z
Fig. 10.l Fig. 10.m
12. to replace the heaters refer to the next section;
13. remove the spacer (D) located on the bottom of the boiler;
14. clean the heaters (see the next section);
15. the heaters (R) can also be cleaned without unmounting the
top cover; this can be achieved by removing the front  ange and
loosening the fatening nuts (Z);
16. now remove the  ange with the  lter (C);