Gas-side maintenance
Instruction manual DR-LA
59
s
To simplify descaling and cleaning of the tank, the appliance is equipped with
two cleaning openings.
1. Remove the cover plate
a
on the outer jacket. See
.
2. Carefully remove the insulation
b
and set it to one side. This will be needed
again later.
3. Undo the bolts.
4. Remove the lid, the gasket and the O-ring.
5. Inspect the tank and remove the loose scale deposits and contamination.
6. If the scale cannot be removed by hand, then the appliance will need to be
descaled using a suitable cleaner.
7. Close the cleaning opening. To avoid damage to the tank, the bolts that
fasten the lid should be tightened with a torque no greater than 50 Nm. Use
suitable tools for this. To properly seal the cleaning opening, we recommend
tightening the bolts in the sequence shown in
9.4
Gas-side mainte-
nance
9.4.1
Introduction
On the gas side the following steps should be carried out:
Take care
The burners may be
hot.
1.
.
2.
.
3.
9.4.2
Cleaning the burners
1. Detach the burners.
2. Carefully remove any contamination present on the burners.
Figure 9.1
Cleaning opening
Figure 9.2
Bolt tightening sequence
2
6
7
1
4
5
3
IMD-0235
1
3
6
2
4
5
IMD-0282
