Safety / Maintenance / Repair
26
BA_Elmasteam 4
5
_EN_Vers. 01.2019
© Elma Schmidbauer GmbH
7.2.1
For water containing lime
Observe the safety instructions in chapter 7.2.
There is the risk of calcification of diverse machine components for
operation with mains water containing lime (tap water). The
pressure tank must be rinsed by the user in accordance with the
table to avoid lime scale damage to the machine.
In the case of continuous operation with tap water, lime sludge and
scale accumulate in the pressure tank depending on the hardness
of the water. In addition, lime particles detaching from the pressure
tank can clog diverse machine components such as valves and
nozzles. Polished surfaces can be adversely affected (matted) by
such lime particles.
The following cleaning intervals are specified, depending on the
water hardness:
German
hardness
grade
< 5 °dH
5 °dH -
10 °dH
10 °dH -
15 °dH
15 °dH -
20 °dH
> 20 °dH
Rinsing
interval
8
weeks
6
weeks
4
weeks
2
weeks
1
week
•
Switch off the machine.
•
Unplug mains plug.
•
Let the machine cool down until it is depressurised (0 bar). After
complete depressurisation, the machine must still cool down for
approx. 5 minutes to prevent spontaneous steam formation
during rinsing.
•
Have the maintenance hose included in the delivery ready.
1. Open pressure tank screw cap.
2. Push maintenance hose onto connection nozzle on the ball
valve.
3. Position machine so that the maintenance hose protrudes into
a sink or sufficiently large container and so that the ball valve
can be operated.
Risk of scalding when draining possibly still heated residual
water from the pressure boiler!
Wear gloves for holding the hose.
4. Open ball valve using a screwdriver (
Fig. 7.2.1.2
) and first
drain any still present residual water.
5. Connect rinsing set to a water tap (3/4" connection).
6. Using the hose from the rinsing set, spray the pressure tank in
circular movements.
Continue this process until no more lime residues are rinsed
out of the pressure boiler.
In doing so, the water should be able to flow out of the
pressure tank quickly*.
Intervals
Preparation
Rinsing procedure
CAUTION
