Decommissioning; Environmental Protection And Disposal; Inspection And Maintenance; Inspection - Bosch Stora SWDP 200-2 Installation And Service Instructions Manual

Decommissioning

7 Decommissioning
▶ Switch off the temperature controller at the control unit.
WARNING
Risk of scalding from hot water!
Hot water can cause serious burns
▶ Allow the cylinder to cool down sufficiently.
▶ Drain the cylinder ( Fig. 17 / 18, page 71).
Use the nearest water taps to the cylinder for this.
▶ Decommission all assemblies and accessories of the heating system
according to the manufacturer's notes in the technical
documentation.
▶ Depressurise the heat exchanger.
8

Environmental protection and disposal

Environmental protection is a fundamental corporate strategy of the
Bosch Group.
The quality of our products, their economy and environmental safety are
all of equal importance to us and all environmental protection legislation
and regulations are strictly observed.
We use the best possible technology and materials for protecting the
environment taking account of economic considerations.
Packaging
Where packaging is concerned, we participate in country-specific
recycling processes that ensure optimum recycling.
All of our packaging materials are environmentally compatible and can be
recycled.
Used appliances
Used appliances contain valuable materials that can be recycled.
The various assemblies can be easily dismantled. Synthetic materials are
marked accordingly. Assemblies can therefore be sorted by composition
and passed on for recycling or disposal.
9

Inspection and maintenance

WARNING
Risk of scalding from hot water!
Hot water can cause serious burns.
▶ Allow the cylinder to cool down sufficiently.
▶ Allow the cylinder to cool down sufficiently before carrying out any

maintenance.

▶ Carry out cleaning and maintenance procedures in the specified
intervals.
▶ Remedy all faults immediately.
▶ Only use genuine spare parts!
9.1

Inspection

An inspection/check of the cylinders must be carried out every 2 months
in accordance with DIN EN 806-5. During this the set temperature
should be checked and compared with the actual temperature of the
heated water.
9.2 Maintenance
Annual maintenance should be carried out in accordance with DIN EN
806-5, Appendix A, table A1, line 42. This includes the following work:
• Function check of the pressure-relief valve
• Tightness test of all connections
• Cleaning of the cylinder
28
9.3

Maintenance intervals

The maintenance to be carried out depends on the flow rate, operating
temperature and water hardness ( Tab. 31). Based on many years of
experience, we therefore recommend selecting the maintenance
intervals according to Tab. 31.
To minimise calcification of the storage tank, we recommend installing a
softening system from
14° dH.
You can check the water quality with your water supply utility.
Depending on the composition of the water, it can make sense to deviate
from the reference values listed.
Water hardness [°dH]
Calcium carbonate
concentration CaCO [mol/m3]
3
Temperatures
At a normal flow rate (< cylinder content/24 h)
< 60 °C
60...70 °C
> 70 °C
At an increased flow rate (> cylinder content/24 h)
< 60 °C
60...70 °C
> 70 °C
Table 31 Maintenance intervals in months
9.4

Maintenance work

9.4.1

Testing the pressure relief valve

▶ Check the pressure relief valve annually.
9.4.2

Descaling and cleaning

▶ Isolate the cylinder from the piping on the domestic water side.
▶ Close shut-off valves ( Fig. 17, page 71).
▶ Drain the cylinder ( Fig. 18, page 72).
▶ In the case of soft water:
Check the container regularly and clean to remove limescale.
-or-
▶ In the case of hard water or severe pollution:
Regularly descale the cylinder in line with the actual amount of
limescale using chemical cleaning methods (e.g. with a suitable
descaling agent based on citric acid).
9.4.3

Recommissioning

▶ Flush the cylinder thoroughly after cleaning or repair.
▶ Vent on the heating side and on the domestic water side.
9.5

Function check

NOTICE
Damage through positive pressure.
A pressure-relief valve malfunction can result in damage due to positive
pressure.
▶ Check the pressure-relief valve function and flush through several
times by venting.
▶ Never close the blow-off opening of the pressure-relief valve.
3...8.4 8.5...14 > 14
0.6...1.5 1.6...2.5 > 2.5
Months
24 21 15
21 18 12
15 12 6
21 18 12
18 15 9
12 9 6
Stora – 6721847474 (2023/02)