Buderus Logalux S120/5 W, Installation And Service Instructions For Specialists

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3
Regulations
Logalux – 6721814241 (2020/03) 41
2.5 Technical Data
Table 50 Technical Data
2.6 Product data for energy consumption
The following product data satisfy the requirements of the EU
Regulations No. 811/2013 and No. 812/2013 supplementing EU
Regulation 2017/1369.
Manufacturers who implement these guidelines and state the ErP values
are permitted to use the "CE" mark.
Table 51 Product data for energy consumption
3 Regulations
Observe the following guidelines and standards:
• Local regulations
•
EnEG (Building Regulations) (in Germany)
• EnEV (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 with glass lining; 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 pollution ...
– DIN EN 806-5 – Technical rules for potable water installations
– DIN 4708 – Central water heating systems
• DVGW
– Code of Practise W 551 – Potable water heating systems and
pipework; technical measures to inhibit the growth of legionella
bacteria in new systems; ...
– Code of Practise W 553 – Sizing DHW circulation systems ...
Product data for energy consumption
• EU Regulation and Directives
– EU Regulation 2017/1369
– EU Regulation 811/2013 and 812/2013
Unit SU400.5
Dimensions and specifications -

Fig. 2,
page 55
Pressure drop diagram -

Fig. 3,
page 56
General description
Tilt height mm 1955
Minimum room height for anode
replacement mm 2100
Connection size, DHW DN R1"
Connection size, cold water DN R1"
Connection size, circulation DN R¾ "
Inner diameter, test point, cylinder
temperature sensor mm 19.5
Inside diameter of handhole cover mm 120
Cylinder capacity
Useful capacity (overall) l 375
Usable DHW volume
1)
with DHW outlet
temperature
2)
:
1) Without solar thermal heating or recharging; set cylinder temperature 60 °C.
2) Mixed water at draw-off point (at 10 °C cold water temperature).
45 °C l 536
40 °C l 625
Standby heat loss (24 h) in accordance with
DIN 4753 Part 8
3)
3) Distribution losses outside the DHW cylinder are not taken into account.
kWh/24 h 1.7
Maximum flow rate at cold water inlet l/min 38
Maximum DHW temperature °C 95
Maximum operating pressure, potable water bar
(positive)
10
Maximum DHW test pressure bar
(positive)
10
Heat Exchanger
Content l 12.0
Surface area m
2
1.8
Rating code N
L
according to DIN 4708
4)
4) The rating code N
L
=1 according to DIN 4708 for 3.5 persons, standard bath tub
and kitchen sink. Temperatures: cylinder 60 °C, DHW outlet temperature 45 °C
and cold water 10 °C. Measured at max. heat output. If the heat output is
reduced, N
L
becomes smaller.
N
L
13
Continuous output (at 80 °C flow
temperature, 45 °C DHW outlet temperature
and 10 °C cold water temperature) kW
l/min
54.5
22
Heating water volumetric flow rate l/h 3500
Heat-up time at rated output min 41
Maximum heat input
5)
5) In the case of heat sources with a higher heat output, limit to the stated value.
KW 54.5
Maximum heating water temperature °C 160
Maximum operating pressure of heating
water bar
(positive)
16
Connection size, heating water DN R1”
Product
number Product type Cylinder
volume (V)
Heat
retention
loss (S)
Energy
efficiency
class for
DHW
treatment
8732929605 SU400.5 S-B 375,0 l 69,9 W B