Function Check; Magnesium Anode; Regular Thermal Disinfection; Extended Nonuse (Longer Than 3 Months) - Bosch Tronic 4000 T Series Installation And Operating Instructions Manual

8.2.1 Function check

▶ Check that all components are functioning correctly.
CAUTION: Damage to the enamel coating!
Never clean the enamel-coated inner walls of
the DHW cylinder using a descaling agent. No
additional products are necessary to protect
the enamel coating.

8.2.2 Magnesium anode

The DHW cylinder is protected against corrosion
by a magnesium anode inside the cylinder.
WARNING:
Only commission the DHW cylinder with fitted
magnesium anode.
WARNING:
Check the magnesium anode annually and
replace if required. DHW cylinders operated
without this protection are excluded from our
warranty.
▶ Disconnect the safety switch of the DHW cylinder.
▶ Before starting work, make sure that the DHW cylinder is
disconnected from the power supply.
▶ Completely drain the DHW cylinder ( sec. 6.3).
▶ Remove the screws in the cylinder cover, and remove the
cover.
▶ Disconnect the connecting lead of the temperature limiter.
▶ Remove the fixing screws in the flange [2].
▶ Remove the flange [1].
▶ Check the magnesium anode [3] and replace if necessary.
Tronic 4000 T | Tronic 6000 T
1
2
Fig. 16 Access to the interior and component identification
(example: Tronic 6000 T)
[1] Fixing screws
[2] Flange
[3] Magnesium anode

8.2.3 Regular thermal disinfection

DANGER: Risk of scalding!
Hot water can lead to severe scalding during
regular cleaning.
▶ Perform cleaning outside of the normal
operating times.
▶ Turn off all hot water taps.
▶ Warn all residents of risk of scalding.
▶ Select the maximum temperature.
▶ Wait until the ON indicator lamp goes out.
▶ Open all hot water taps. Start with the water tap closest to
the DHW cylinder. Let all of the hot water drain for at least
3 minutes from the DHW cylinder.
▶ Close the hot water taps, and set the temperature limiter to
the normal operating temperature.

8.2.4 Extended nonuse (longer than 3 months)

Replace the water in the DHW cylinder if it has
not been used for a long period (longer than
3 months).
▶ Isolate the DHW cylinder from the power supply.
▶ Completely drain the DHW cylinder.
▶ Fill the DHW cylinder until water drains from all of the hot
water taps.
▶ Connect the DHW cylinder to the power supply.
Maintenance/inspection | 13
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6 720 818 731 (2016/07)