8. Other informations
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– TW-31-E - V1.9 - 06.04.2021
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8.11 Function power pack + regular exchange
Charged (!) Batteries must be used at all times for the tank guard to
function properly!
The batteries are used to maintain the tank guard function in the event of a power
failure. During the power failure, the error code (F30) flashes in the display.
Maximum power failure time during the cooling process is exceeded.
If the time of the power failure is longer than set in [H20] during the cooling mode
and the milk temperature is higher than the pre-adjusted value [H19], the error code
F6 blinks. Alarm “DO NOT FEED” is activated.
In this case the power packs have to be removed and charged or exchanged.
Fault message (F39)
If the fault message (F39) appears, the battery voltage is too low. The batteries can
be removed and recharged by a qualified electrician. Are the batteries older than two
years => replace!
IMPORTANT NOTICE ABOUT THE ACCUMULATORS
The life of the accumulators is limited. The built-in accumulators must
be replaced by new ones every two years at the latest.
Only (!) charged accumulators of the following specification may be
used: 1.2 V NiMh - size AA (min. 2.000 mAh)
Be sure to use the supplied battery holder!
Since the tank guard may not be opened by laypeople, the replacement
of the batteries may only be carried out by a qualified electrician
DO NOT USE BATTERIES !!! EXPLOSIVE !!!!!
Installation:
Connect the power pack to terminals 21 + 22 (observe polarity)
activate power pack in parameter [A75]:
WELBA
Power pack
DANGER!
ATTENTION
