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Boiler Connections
Installation Examples
26
General
The schematics on the following pages
are to be seen as guidelines only. They
further do not display all system
varieties, safety devices, or concepts
possible. Specific system layouts may
be further discussed with the local
Viessmann sales representative office.
Clearances
A minimum of 2"/51 mm
circumferential clearance from
non-insulated hot water pipes to
combustible construction must be
maintained. In cases where the pipes
are insulated with pipe insulation of
appropriate and sufficient thickness
and insulation values, the above
clearance may be reduced to 0" (refer
to local gas codes).
CAUTION
For underfloor heating applications,
an additional immersion or strap-on
aquastat must be installed in the low
temperature underfloor loop
(downstream of the mixing valve) to
de-energize the pump and/or boiler to
prevent overheating. High water
temperatures can damage concrete
slabs.
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