Explanation Of Symbols; Key To Symbols; General Safety Instructions; Product Information - Buderus SU300.5 serie Installations- Und Wartungsanleitung Für Den Fachhandwerker

1

Explanation of symbols

1.1

Key to symbols

Warnings
Warnings in this document are framed and identified by
a warning triangle which is printed on a grey
background.
Keywords indicate the seriousness of the hazard in terms of the
consequences of not following the safety instructions.
• NOTICE indicates that material losses may occur.
• CAUTION indicates that minor to medium injury may occur.
• WARNING indicates that serious injury may occur.
• DANGER indicates possible risk to life.
Important information
Important information in cases where there is no risk of
personal injury or material losses is identified by the
symbol shown on the left. It is bordered by horizontal
lines above and below the text.
Additional symbols
Symbol Meaning
▶ a step in an action sequence

a reference to a related part in the document or to other
related documents
• a list entry
– a list entry (second level)
Table 1
1.2

General safety instructions

General information
These installation and maintenance instructions are intended for
contractors.
Failure to observe the safety instructions can result in serious injuries.
▶ Read and follow the safety instructions.
▶ Observe these installation and maintenance instructions to ensure
trouble-free operation.
▶ Install and commission heat sources and their accessories according
to the relevant installation instructions.
▶ To reduce oxygen permeation and therefore corrosion to a minimum,
do not use vapour-permeable components!
▶ Never close the safety valve.
▶ Only use original spare parts!
SU300.5 | SU400.5 – 6 720 819 326 (2019/12)
2

Product information

2.1

Intended use

The DHW cylinder is designed for heating and storing potable water.
Observe all regulations, guidelines and standards regarding potable
water that are applicable in your country.
Heat the DHW cylinder via the solar circuit exclusively using solar fluid.
Only install this DHW cylinder in sealed unvented systems.
Any other use is considered inappropriate. Any damage resulting from
inappropriate use is excluded from liability.
Potable water requirements
Water hardness, min.
pH value, min. – max.
Conductivity, min. – max.
Table 2 Potable water requirements
2.2

Data plate

The data plate is located at the top of the rear of the DHW cylinder and
includes the following details:
Pos. Description
1 Model designation
2 Serial number
3 Actual content
4 Standby heat loss
5 Volume heated by immersion heater
6 Year of manufacture
7 Corrosion protection
8 Max. DHW cylinder temperature
9 Max. flow temperature, heat source
10 Max. flow temperature, solar
11 Connected electrical load
12 Heating water heat input
13 Heating water throughput for heating water heat input
14 With 40 °C drawable volume, heated electrically
15 Max. operating pressure, DHW side
16 Highest design pressure
17 Max. operating pressure, heat source side
18 Max. operating pressure, solar side
19 Max. operating pressure, DHW side, CH
20 Max. test pressure, DHW side, CH
21 Max. DHW temperature with electric heating
Table 3 Data plate
2.3

Standard delivery

• DHW cylinder
• Installation and maintenance instructions
Explanation of symbols 1
Unit
ppm 36
grain/US gallon 2.1
°dH 2
6.5 – 9.5
μS/cm 130 – 1500
35