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4 | Concentric Horizontal Vent Kit
1 Explanation Of Symbols
1.1 Key To Symbols
Warnings
Warnings in this document are identifi ed 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 defi ned and can be used in this
document:
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor to moderate injury.
NOTICE is used to address practices not related to personal
injury.
Important information
This symbol indicates important information where
there is no risk to people or property.
Data subject to change
1.2 Safety Instructions
WARNING:
Read all instructions before installing. Perform the
steps in the indicated sequence. Failure to comply
with these instructions can result in severe, possibly
fatal, personal injury as well as damage to property
and equipment.
WARNING: Installation and servicing
Ensure that only a licensed contractor installs or
services the gas appliance.
On hot components use only material with
adequate temperature rating.
WARNING: Installation and commissioning
In the Commonwealth of Massachusetts, the
gas appliance must be installed by a licensed
plumber.
DANGER: If you smell fl ue gas
Switch off the appliance.
Open windows and doors.
Inform a trained and certified installer.
DANGER: Insuffi cient ventilation may cause
toxic fl ue gases to escape posing a risk of fl ue gas
poisoning.
Never close off or reduce the size of the air intake
and outlet openings.
The appliance must not be operated until any
obstructions have been removed.
Inform the system operator in writing of the
problem and the associated dangers.
Installation Manual
Bosch Thermotechnology Corp.
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