Carel heaterSteam UR006 - Fuse Replacement

41
ENG
“heaterSteam” +0300075EN - rel. 1.2 - 29.09.2015
C
DR
Fig. 10.n
17. rinse the inner walls of the boiler and remove the lime using a soft
brush;
18. reinstall the boiler and repeat the previously described operations
reversely; please remind to secure the grounding screws.
For power connections please refer to the wiring diagrams of the heaters
next to the heads.
Anti-adhesive  lm (optional)
On the inner wall of the boiler is present (depending on model) a  lm
made in anti-adhesive material that prevents lime from adhering to the
inner walls of the same. For cleaning and replacement:
• remove the boiler cover following the steps given in the previous
section;
• slowly remove the  lm towards boiler inlet, without forcing it to avoid
damaging the same;
• open the  lm after having released the click-on couplings;
• clean with water and use a plastic brush, if necessary; replace it if
damaged;
• clean the boiler and remove lime;
• rewind the  lm on itself by hooking the click-on couplings and reinsert
it into the boiler.
Cleaning the heaters
After you have removed the limestone that detached more easily,
immerse the heaters for 30 minutes in a lukewarm solution of 20% acetic
acid, using a non-metallic spatula to remove the surface deposits that are
still present. Rinse thoroughly; the plates are coated with anti-adhesive
 lm; avoid using any type of metal tools to avoid damaging the anti-
adhesive  lm;
10.5 Feeding/drain tempering solenoid valve
UR020-UR080
After having disconnected the cables and the pipes, remove the feeding
electrovalve (V2) and check the cleanliness condition of the inlet  lter,
cleaning it if necessary using water and a soft brush. Carry out the same
operations on “drain tempering” valve (V1), if present.
V1
V2
V1
V2
Fig. 10.o Fig. 10.p
10.6 Fill tray
UR002-UR013
Check that there are no blockages or solid particles in the tray (V) and that
the conductivity measuring electrodes are clean; remove any impurities
and rinse.
V
Fig. 10.q
10.7 Parts replacement
Fuses (auxiliary circuits)
These measure 10.3 x 38 mm and are housed in the fuse cartridge; to
check the state of the fuses, check their continuity using a tester. Use the
fuses as speci ed in the table.
UR*02
models
UR002 UR004 UR006 1ph UR006 3ph UR010 UR013 UR020 UR027 UR040 UR053 UR060 UR080
Transformer supply fuses F1-F2 URKFUSE300 (1 A GL, 10,3 x 38)
Pump safety fuses F3 UEKFUSE200 (1 A F 5 x 20 ceramic) URKFUSE300 (1 A GL, 10,3 X 38)
Tab. 10.i
UR*U2 - U.S.A. Version
models
UR002 UR004 UR006 1ph UR006 3ph UR010 UR013 UR020 UR027 UR040 UR053 UR060 UR080
Transformer supply fuses F1-F2 URKFUSE100 (1 A GL, 10,3 x 38)
Pump safety fuses F3 UEKFUSE200 (1 A F 5 x 20 ceramico) URKFUSE100 (1 A GL, 10,3 X 38)
Fuse 4 of transformer secondary circuit UEKFUSE400 (4 A AT 5 x 20 ceramic)
Tab. 10.j