6.2
Renewing fuse
Electrical installations may only be car-
ried out by a qualified electrician.
1.
Set the blocking switch to «0» and disconnect the
heat generator from the mains (main switch, fuse).
2.
Remove the front casing according to the procedure
3.
Remove the cover from TopTronic
®
E - WEZ (press to
the side and remove).
4.
Renew fuse (T 10A 250V).
5.
Mount protecting cover, close casing.
6.
Restore the electrical power supply.
6.3
Cleaning the boiler and leakage test
The UltraOil
®
may only be cleaned by a licensed specia
-
list or Hoval customer service technician.
Reliable and safe operation of the oil boiler, optimum ef
-
ficiency and clean combustion can only be guaranteed if
the unit is serviced and cleaned regularly.
Inspection and cleaning must be carried out annually. For
this purpose, we recommend that you conclude a main
-
tenance contract with Hoval customer service, or with an
authorised specialist dealer.
In the case of oil-fired equipment already in operation du
-
ring the construction phase (where there is increased oc
-
currence of dust), inspection should be carried out once
construction work has been completed to ascertain the
degree of dirt build-up. If necessary cleaning must be car
-
ried out.
6.3.1 Preparations for cleaning the boiler and burner
The heat generator must be de-energised
for maintenance. Set the blocking switch
to «0» and disconnect the heat generator
from the mains (main switch, fuse).
All electric power supply circuits must be
switched off before accessing the termi-
nals.
•
Remove absorber hood (1, Fig. 41). To do this, release
lateral locking bolts (2) (turn approx. ¼ turn to the left
and pull out as far as the stop)
•
Remove front cover of the boiler base (10, Fig. 42)
•
Depending on the design, unscrew or remove siphon
trap (7, Fig. 42), siphon base section (8, Fig. 42), si
-
phon support (8a) or neutralisation box (9, Fig. 43).
Danger: flue gas escaping through the si
-
phon can endanger lives (poisoning).
The siphon (8, Fig. 42) must always be filled
with water. The condensate drain line must
not be soiled or blocked.
•
Before replacing the siphon, fill it with wa
-
ter.
•
Check whether the condensate drain line is
soiled/blocked.
•
Undo the burner plug-in connections (burner cable, re
-
mote reset cable).
•
Release the lock nuts (4, Fig. 41)
•
Pull the burner with the boiler door (3) upwards, turn it
to the side and lower it again
•
Clean burner
•
Clean neutralisation box (9, Fig. 43 - if fitted) as descri
-
bed in chapter 6.4.
•
The cleaning scraper included in the scope of delivery
is suitable for cleaning the aluFer
®
pipes. For a detailed
description of how to clean the combustion chamber
and the aluFer
®
6.3.2 Re-assembling the boiler
•
If applicable, reattach neutralisation box (9, Fig. 43)
and siphon/siphon base section/siphon support (7, 8,
•
Attach the front cover of the boiler socket (10)
•
Close the burner with boiler door (3, Fig. 41)
•
Tighten the lock-nuts (4)
•
Reconnect the burner plug-in connections (burner
cable, remote reset cable)
•
Replace absorber hood (1) and attach with locking bolt
(turn approx. ¼ turn to the right).
•
Set the main boiler control switch to „I“
30
4 213 784 / 00
MAINTENANCE
Summary of Contents for 41-UltraOil 16
Page 35: ...35 4 213 784 00...
