Operating manual and inspection booklet
Camping
146 3435216
Check and replenish the expansion tank.
Fig. 141: Expansion tank
The filling level in the sight glass (1) of the expansion tank must
be between "Min" and "Max" on old state and may be slightly
above "Max" in warm state.
The expansion tank must not run empty, otherwise, the heating
system must be vented.
If the level falls below the "Min" mark, refill the tank as follows:
Mixing ratio for ALDE heater: 50% water/50% glycol
(recommended: aluminium radiator antifreeze Glysofor N)
To prevent rust in the heating system, replace the glycol-
water mixture every five years.
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