Key To Symbols And Safety Instructions; Explanation Of Symbols; General Safety Instructions - Bosch Thermotechnik EMS 2 MZ 100 Manual De Instrucciones

8 | Contents
Contents
1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . 8
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Product details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Important notices on usage . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Standard delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Cleaning and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Additional accessories . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.1 Connection of BUS and temperature sensor
(extra-low voltage side) . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2.2 Connection to mains voltage, pump and valves
(mains voltage side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.3 Connection diagrams with system schematics . . . . . . 11
4 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Setting coding switch I . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Setting the temperature switch II . . . . . . . . . . . . . . . . . 12
4.3 Commissioning of the module and the system . . . . . . 12
5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Environment / disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1

Key to symbols and safety instructions

1.1

Explanation of symbols

Warnings
Warnings in this document are identified by a warning
triangle printed against a grey background.
Keywords at the start of a warning indicate the type and
seriousness of the ensuing risk if measures to prevent
the risk are not taken.
The following keywords are defined and can be used in this document:
• NOTICE indicates a situation that could result in damage to property
or equipment.
• CAUTION indicates a situation that could result in minor to medium
injury.
• WARNING indicates a situation that could result in severe injury or
death.
• DANGER indicates a situation that will result in severe injury or
death.
6 720 815 281 (2014/10)
Important information
This symbol indicates important information where
there is no risk to people or property.
Additional symbols
Symbol Explanation
▶ Step in an action sequence

Cross-reference to another part of the document
• List entry
- List entry (second level)
Table 6
1.2

General safety instructions

These installation instructions are intended for a competent person.
▶ Read the installation instructions (heat appliances, modules, etc.)
before installation.
▶ Observe safety instructions and warnings.
▶ Observe national and regional regulations, technical rules and
guidelines.
▶ Keep a record of any work carried out.
Determined use
▶ The product must only be used for controlling heating systems.
Any other use is considered improper. Any damage that may result is
excluded from liability.
Installation, commissioning and maintenance
Installation, commissioning and maintenance must only be carried out
by a suitably qualified engineer.
▶ Only genuine spare parts must be installed.
Electrical work
Electrical work must only be carried out by qualified electricians.
▶ Before carrying out electrical work:
- Isolate all poles of the mains voltage and secure against
reconnection.
- Using suitable means, test the power supply is disconnected.
▶ The product requires different voltages.
Do not connect the extra-low voltage side to the mains voltage or vice
versa.
▶ Also observe connection diagrams of other system components.
Handover to the end user
When handing over the heating system, explain the operating conditions
to the user.
▶ Explain how to operate the heating system, with particular emphasis
on all safety-related actions.
▶ Explain that conversions or maintenance must only be carried out by
a suitably qualified engineer.
▶ Point out the need for inspections and maintenance for safe and
environmentally friendly operation.
▶ The installation and operating instructions must be given to the end
user for safekeeping.
Damage caused by frost
The system can freeze if it is switched off:
▶ Observe the notices regarding frost protection.
▶ Due to the additional functions, e.g. DHW heating or anti-seizing
protection, the system should always be left on.
▶ Correct any faults immediately.
MZ 100