Technical information

5517 914 - 01 06/2014
Installation Instructions
for use by heating contractor
Direct Vent Systems
Part No. Z005 875 (FDVS-4)
for Vitorond 100 boilers equipped with Hydrostat
Please file in Service Binder
Refer to the Installation Instructions
of other referenced components.
Ensure that main power to the equipment being serviced
is off.
Ensure that the main fuel supply valve to the boiler is closed.
Take precautions to avoid accidental activation of power
or fuel during service work.
Do not perform service work on any component part
without ensuring safe operation of the heating system.
When replacing parts, use original Viessmann or
Viessmann approved replacement parts.
Safety and Installation Requirements
Please ensure that these instructions are read and
understood before starting any service work. Failure to
comply with these instructions may cause product/property
damage, severe personal injury and/or loss of life.
Working on the equipment
The installation, adjustment, service and maintenance of
this product must be performed 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.