Important Precautions - Viessmann Vitotronic 100, GC1 Operating Instructions And User's Information Manual

Safety
Take note of all symbols and notations intended to draw attention to potential hazards or important product information.
These include "WARNING," "CAUTION," and "IMPORTANT". See pages 2 and 4 for details.
Approvals
Viessmann boilers, burners and
controls are approved for sale in North
America by CSA International.
Codes
The installation of this unit shall be in
accordance with local codes. In the
absence of local codes, use:
CSA C22.1 Part 1 and/or local codes
in Canada
National Electrical Code ANSI/NFPA
70 in the U.S.
Always use latest editions of codes.
Working on the equipment
The installation, adjustment, service,
and maintenance of this product must
be done by a licensed professional
heating contractor who is qualified and
experienced in the installation, service,
and maintenance of hot water boilers.
There are no user serviceable parts on
the boiler, burner, or control.
Ensure main power supply to
equipment, the heating system, and all
external controls has been deactivated.
Close main oil or gas supply valve.
Take precautions in both instances to
avoid accidental activation of power
during service work.
Technical literature
Literature applicable to all aspects of
the Vitocontrol S, VD2/CT3/CM2:
- Technical Data Manual
- Installation Instructions
- Service Instructions
- Operating Instructions
- Instructions of other Viessmann
products utilized and installed
- Installation codes mentioned
in this manual

Important Precautions

Please carefully read this manual prior
to attempting installation. Any
warranty is null and void if these
instructions are not followed.
For information regarding other
Viessmann System Technology
componentry, please reference
documentation of the respective
product.
We offer frequent installation and
service seminars to familiarize our
partners with our products. Please
inquire.
The completeness and functionality of
field supplied electrical controls and
components must be verified by the
heating contractor. These include low
water cut-offs, flow switches (if used),
staging controls, pumps, motorized
valves, air vents, thermostats, etc.
WARNING
Turn off electric power
supply before
servicing. Contact with
live electric
components can cause
shock or loss of life.
Leave all literature at the installation
site and advise the system operator/
ultimate owner where the literature
can be found. Contact Viessmann for
additional copies.
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