Important Regulatory And Installation Requirements; Power Supply; Working With An Open Control - Viessmann VITOTRONIC 100 Installation, Start-Up And Service Instructions Manual

Important Precautions

Important Regulatory and Installation Requirements

Power supply

Install power supply in accordance with the regulations
of the authorities having jurisdiction or, in the absence
of such requirements, in accordance with National Codes.
Viessmann recommends the installation of a disconnect
switch to the 120 VAC power supply outside of the boiler
room. The installer must provide maximum 15 A over
current protection for the 120 VAC power supply (fuse
or circuit breaker).
Note on connecting external "potential-free" contacts
to the Vitotronic 100 control's 24 VAC thermostat
connections:
Ensure that all contacts have sufficient insulation
clearance to live parts and are certified for these
applications.
A room thermostat or other potential-free contact (i.e.
end switch of a zone valve) must be connected to the
Vitotronic 100 thermostat connections.
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Vitotronic 100, KW10B Installation, Start-up and Service

Working with an open control

No static discharge to the internal componentry must ever
occur when working with opened control equipment.