Installation Location - Viessmann Vitocal 200-S Installation And Service Instructions Manual

Installing the outdoor unit
When installing the outdoor unit on roof surfaces,
■
there is a risk that structure-borne noise and vibra-
tions will be transmitted into the building.
If the outdoor unit is installed on freestanding
garages, insufficient structure-borne noise insulation
and vibration isolation can cause excessive noise
due to resonance amplification.
For on-site installation of refrigerant lines in a KG
■
conduit:
After installing the refrigerant lines, fill the KG conduit
with sand.

Installation location

Maximum geodetic height of the installation location:
■
1500 m above sea level
Select a site with good air circulation so that the
■
cooled air can dissipate and be replaced by warm
air.
■ Do not install in recesses or between walls. This
could result in an "air short circuit" between the air
being discharged and the air being drawn in.
!
Please note
An air short circuit during heating mode will
result in the cooled, discharged air re-entering
the unit. This can result in reduced heat pump
efficiency and defrosting problems.
Avoid air short circuits.
!
Please note
An air short circuit during cooling mode will
result in the heated, discharged air re-entering
the unit. This can lead to high pressure faults.
Avoid air short circuits.
■ If siting the appliance in a location that is exposed to
wind, ensure that the wind cannot influence the fan
area. Strong wind can have a negative influence on
the air flow through the evaporator.
■ Take the lengths of the refrigerant lines into account:
See chapter "Connecting the refrigerant lines".
■ Select an installation location where the evaporator
cannot be blocked by leaves, snow, etc.
Select the installation location giving due considera-
■
tion to the physical laws of sound propagation and
reflection.
Technical guide
(cont.)
Do not install above cellar shafts or floor troughs.
■
Do not install near bedroom windows.
■
To avoid increased wind loads, maintain 1 m dis-
■
tance from building edges and corners.
■ Maintain a clearance of at least 3 m to pathways,
downpipes or sealed surfaces. The cooled air in the
discharge area creates a risk of ice forming when
outside temperatures are below 10 °C.
The installation location must be easily accessible,
■
for example for maintenance work: See chapter
"Minimum clearances".
Additional requirements for flat roof installation:
Never install the outdoor unit on a flat roof immedi-
■
ately next to or above living rooms or bedrooms.
Do not locate in front of windows, or keep a distance
■
of 1 m from them.
■ Due to the higher static loads (roof/wind load) and
the higher acoustic requirements for roof installation,
input from a specialist design engineer is required.
The specialist design engineer specifies the require-
ments for structural calculations, distances from
building edges and sound concepts.
Installation sequence
15