Electrostatic Discharge - Viessmann Vitomax HS M73 Operating And Service Instructions

High pressure steam boiler
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Safety instructions
Safety instructions
Please follow these safety instructions closely to
prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
!
Please note
This symbol warns against the risk of material
losses and environmental pollution.
Target group
These instructions are exclusively intended for quali-
fied contractors.
Regulations to be observed
Pressure Equipment Directive
Health and Safety at Work Act (BetrSichV) [Ger-
many] and extended technical rules for operational
safety (TRBS)
Country-specific safety regulations for the installation
site
Safety instructions for working on the system
Commissioning
Note
Unpleasant odours may develop during commission-
ing. Ensure the installation room is well ventilated.
Before working on the system
Close the fuel shut-off valve and secure against
unintentional reopening.
Isolate the system from the power supply, e.g. by
removing the separate fuse or by means of a mains
isolator, and check that it is no longer 'live'.
Safeguard the system against reconnection.
Hot surfaces
Danger
Hot surfaces can lead to burns. Never touch hot
surfaces, e.g.
Steam pipes
Hot water pipes
Cleaning apertures and closures on the boiler
system
Boiler doors, as well as components behind
the doors
Observe occupational safety. Wear protective
clothing where necessary.
2
Note
Details identified by the word "Note" contain additional
information.
Work on gas installations may only be carried out by
a registered gas fitter.
Work on electrical equipment may only be carried
out by a qualified electrician.
National installation regulations
Statutory regulations for the prevention of accidents
Statutory regulations for environmental protection
Codes of practice of the relevant trade associations

Electrostatic discharge

!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Repair work
!
Please note
Repairing components that fulfil a safety func-
tion can compromise the safe operation of the
system.
Replace faulty components only with genuine
Viessmann spare parts.

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This manual is also suitable for:

Vitomax hs m75Vitomax hs m93Vitomax hs m95

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