Product Information; Regulations; Transport; Assembly - Bosch W 120-5 O1 Installation And Maintenance Instructions For Contractors

Regulations

2.6

Product information

Item Description
1 Casing, painted sheet metal with rigid polyurethane foam
thermal insulation, 30 mm
2 Built-in magnesium anode, without electrical insulation
3 Heat exchanger for reheating by wall mounted boiler,
smooth enamelled tubing
4 Sensor pocket for temperature sensor, heat source
5 Storage cylinder, enamelled steel
6 Inspection aperture for maintenance and cleaning on the
top/DHW circulation connection
7 PS top cover
8 Cylinder flow
9 DHW outlet
10 Cold water inlet
11
Cylinder return
12 Drain valve
Table 6 Product description ( Fig. 3, page 45)
3 Regulations
Observe the following guidelines and standards:
• Local regulations
• EnEG (Building Regulations) (in Germany)
• EnEV (Energy Savings Order) (in Germany)
Installation of, and equipment for, heating and water heating systems:
• DIN and EN standards
– DIN 4753-1 – Water heaters ...; requirements, identification,
equipment and testing
– DIN 4753-3 – Water heaters ...; corrosion protection on the
water side through glass lining; requirements and testing
(product standard)
– DIN 4753-6 – Water heating systems ...; cathodic corrosion
protection for enamelled steel cylinders; requirements and
testing (product standard)
– DIN 4753-7 – Water heaters...; containers with a volume up to
1000 l, manufacturing, thermal insulation and corrosion
protection requirements
– DIN EN 12897 – Water supply - regulation for ... DHW cylinders
(product standard)
– DIN 1988-100 – Technical rules for potable water installations
– DIN EN 1717 – Protection of potable water against
contamination ...
– DIN EN 806 – : Technical rules for potable water installations
– DIN 4708 – Central water heating systems
• DVGW
– Code of Practice W 551 – Potable water heating systems
and pipework; technical measures to inhibit the growth of
legionella bacteria in new systems; ...
– Code of Practice W 553 – Sizing DHW circulation systems ... .
26
4

Transport

▶ Secure the DHW cylinder during transportation to prevent it from
falling.
▶ Move packed DHW cylinder with a sack trolley and lashing strap
( Fig. 4, page 45).
-or-
▶ Move unpacked DHW cylinder with a transport net; during handling,
protect connections against possible damage.
5

Assembly

The DHW cylinder is delivered fully assembled.
▶ Check that the DHW cylinder is complete and undamaged.
5.1

Installation

5.1.1

Requirements for installation location

NOTICE: Risk of damage from inadequate load-bearing
capacity of the installation surface or unsuitable floor
surface!
▶ Ensure that the installation surface is level and offers
sufficient load-bearing capacity.
▶ Place the DHW cylinder on a plinth if there is a risk of water collecting
at the installation location.
▶ The installation site must be a dry and frost-free room.
▶ Observe minimum room height ( Tab. 10, page 44) at the
installation location. No minimum wall clearance required.
5.1.2

Positioning the DHW cylinder

▶ Stand the DHW cylinder upright and level it ( Fig. 6, page 46 and
Fig. 7, page 46).
▶ Remove the caps.
▶ Apply Teflon tape or Teflon string ( Fig. 8, page 46).
5.2

Hydraulic connections

WARNING: Risk of fire from soldering and welding!
▶ Take appropriate safety measures when soldering
and welding as the thermal insulation is flammable.
For example, cover up the thermal insulation.
▶ Check cylinder jacket for damage after completing
work.
WARNING: Risk of injury from contaminated water!
Work carried out without due care for cleanliness
contaminates the potable water.
▶ Install and equip the DHW cylinder hygienically in
accordance with national standards and guidelines.
W 120-5 O – 6 720 819 306 (2018/10)