Hoval UltraGas 1550, Техническая информация Инструкции по установке

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MAINTENANCE
6. Maintenance
NOTICE
Damage to the plant as a result of failure to
perform maintenance or cleaning or incorrect
maintenance and cleaning.
Have the heating plant inspected and clea-
ned once per year.
If necessary, have the plant serviced. To avo-
id damage to the heating plant, remedy faults
immediately!
6.1 Safety instructions
CAUTION
Cutting injuries as a result of sharp edges.
Handle parts of the casing carefully and avo-
id contact with sharp edges.
!
CAUTION
Risk of injury for non-expert personnel.
Maintenance and cleaning work are only al -
lowed to be performed by trained specialist
personnel or by Hoval customer service.
NOTICE
After repairs or replacements of boiler parts,
exhaust gas measurement must always be
performed as described in chapter 6.7.
WARNING
The heat generator must be de-energised for
maintenance.
Set the blocking switch to “0” and disconnect
the heat generator from the mains (e.g. main
switch).
WARNING
All electrical power supply circuits must be
switched off before accessing the terminals.
Perform reset. See operating manual.
6.2 Deaeration
1. Open all radiator valves.
2. Heat up the plant for at least half a day with a high
flow temperature.
3. Switch boiler off and wait for 5 minutes.
4. Thoroughly bleed the system.
6.3 Top up with water
§
ÖNORM H5195, European Standard EN
14868 and VDI Guideline 2035 must be com-
plied with (see chapter 5.3).
If the water pressure drops below 1 bar, a war-
ning is output and the boiler output is reduced
to 50%. If the water pressure drops below 0.5
bar, the boiler automatically switches to lock-
out.
Replenish replacement water if the pressure drops below
the minimum system pressure:
5. Connect the filling hose to the water tap.
6. Deaerate the filling hose.
7. Connect the filling hose to the filling and drain valve.
8. Replenish replacement water (see chapter 5.2).
6.4 Renewing fuse
WARNING
Electrical installation must be performed by a
licensed 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
in chapter 4.8
3. Remove the protecting cover from TopTronic
®
E -
WEZ, press to the side and remove.
4. Renew fuse (T 10 A 250 V).
Fig. 22
5. Mount protecting cover, close casing.
6. Restore the electrical power supply.