Safety Instructions - Wolf CGB-2 Series Installation Instructions For Contractors

Authorised personnel should read these instructions
before any installation, commissioning or service work.
Adhere to the specifications in this document. Failure
to observe these installation instructions will void any
WOLF warranty.
In some countries, the installation of a gas boiler must
be notified to and approved by the relevant gas supply
company.
Please note that regional permits may be required for
the flue system and connecting the condensate drain to
the public sewer.
Before installation work begins, the local flue gas
inspector and waste water authority must be informed
[check local regulations].
The gas condensing boiler must be installed, commis-
sioned and maintained by qualified and trained personnel
only. In accordance with VDE 0105 Part 1, work on elec-
trical components (e.g. control unit) must only be carried
out by qualified electricians.
VDE/ÖVE regulations and those of your local power sup-
ply utility are applicable to electrical installation work
[Germany/Austria].
Operate the gas condensing boiler only within its output
range, which is stated in the technical documentation
supplied by WOLF. Intended use of the boiler includes
exclusive use for hot water heating systems in accordance
with DIN EN 12828.
Never remove, bypass or otherwise disable any safety or
monitoring equipment. Operate the boiler only if it is in
perfect technical condition.
Any faults or damage which impact or might impact upon
safety must be remedied immediately by a qualified con-
tractor. Replace faulty components and equipment only
with original WOLF spare parts.
Symbols
The following warning symbols are used in these instructions.
These relate to personal safety and operational reliability.
Instructions that must be followed precisely in order
to prevent risk and injury to persons.
Instructions that must be followed precisely in order
to prevent risk and injury to persons from live electri-
cal components.
Indicates technical instructions that must be
Please
observed to prevent damage to the boiler and
note
malfunctions.
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2. Safety instructions
Danger: if you smell gas
- Close the gas tap.
- Open the windows.
- Do not operate any electrical switches.
- Extinguish naked flames.
- Phone the gas supply utility company and an ap-
proved contractor from an external location.
Danger from „live" electrical components
Never touch electrical components or contacts
when the ON/OFF switch is in the ON position.
There is a danger of electrocution, resulting in
a risk to health or death. The main terminals are
'live', even when the ON/OFF switch is in the OFF
position.
Danger: if you smell flue gas
- Switch OFF the appliance.
- Open windows and doors
- Notify an approved contractor.
Risk of scalding
Boilers may contain hot water.
Hot water can cause severe scalding.
Before working on parts which are in contact
with water, allow the appliance to cool to below
40 °C, shut off all valves and, if necessary, drain
the appliance.
Risk of burns
Boiler components may be extremely hot.
Hot components can cause burns.
Before working on the opened up appliance, al-
low it to cool below 40 °C or wear suitable gloves.
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