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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.
Electrical hazards are identified by a lightning symbol
surrounded by a warning triangle.
Keywords indicate the seriousness of the hazard in terms of the
consequences of not following the safety instructions.
• NOTICE indicates that material damage 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
B
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.
B Read and follow the safety instructions.
B Observe these installation and maintenance instructions to ensure
trouble-free operation.
B Install and commission heat sources and their accessories according
to the relevant installation instructions.
B Never use open vented expansion vessels.
B Never close the safety valve.
SF300/5, SF400/5 – 6 720 800 028 (2012/05)
2
Product information
2.1
Intended use
The DHW cylinder is designed for heating and storing potable water.
Please observe national, regional, and local codes, regulations,
guidelines and standards for potable water.
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.
Requirements for potable
water
Water hardness, min.
pH value, min. – max.
Conductivity, min. – max.
Table 2 Requirements for potable water
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
Scope of supply
• DHW cylinder
• Installation and servicing instructions
Explanation of symbols
Unit
ppm
36
grain/US gallon
2.1
°dH
2
6.5 – 9.5
μS/cm
130 – 1500
1
9
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