Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 29

Installing the outdoor unit
Floorstanding installation with support: Line entry
below ground level
3000
D
C
B
450
F
K
L
A
600
850
Fig. 16
Ground
A
Pathway, patio
B
Connection set, floorstanding installation (accesso-
C
ries)
Support for floorstanding installation (accessories)
D
Indoor/outdoor unit CAN bus communication cable
E
and outdoor unit power cable:
Route the cables free of stress.
For free drainage of condensate: Gravel bed as
F
soakaway
Gas-tight wall outlet for CAN bus communication
G
cable, indoor/outdoor unit and outdoor unit power
cable (accessories)
Hydraulic connection set (accessories):
H
Make the wall outlet into the building gas-tight.
Foundation strip
K
Frost protection for foundations (compacted
L
crushed stone, e.g. 0 to 32/56 mm); thickness of
layer subject to local requirements and building
regulations
Wall mounting
Installation should only be performed with the bracket
set for wall mounting (accessories).
(cont.)
Note
■ Provide thermal insulation of sufficient thickness on
the pipework to the outdoor air: See table on
page 20.
■ Protect the pipework against damage. Avoid trip haz-
ards.
450
Installing an outdoor unit on foundations
Installation with support for floorstanding installa-
tion (accessories)
Installation with anti-vibration feet (accessories)
E
F
G
H
Installation sequence
Installation instructions for "support set for floor-
standing installation"
Use M10 x 80 ground anchors with a tensile
force of at least 2.5 kN to secure the support.
Installation instructions for "anti-vibration feet"
Separate installation instructions for mounting
bracket set for wall-mounting
29