Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 30

Installation sequence
Installing the outdoor unit
Danger
Incorrect installation can lead to equipment
damage and personal injury, e.g. if the outdoor
unit falls down or falls over.
Only install the outdoor unit in accordance with
the specifications in these instructions.
Wall mounting with bracket set for wall mounting
E
A
Fig. 17
Gravel bed as condensate soakaway
A
Connection set for wall mounting bracket (acces-
B
sories)
Indoor/outdoor unit CAN bus communication cable
C
and outdoor unit power cable:
Route the cables free of stress.
Note
■ For the exact location of the drill holes for the wall
mounting bracket: Use the drilling template supplied
with the wall mounting bracket.
■ Provide thermal insulation of sufficient thickness on
the pipework to the outdoor air: See table on
page 20.
Connecting the hydraulic connection lines
Connect the connection lines of the hydraulic connec-
tion set (accessories) to the underside of the outdoor
unit using either copper pipe or corrugated stainless
steel pipe, dependent upon the connection set.
30
(cont.)
B C
F
D F E D
Gas-tight wall outlet (accessories) for electrical
D
cables and hydraulic lines
Condensate drain in the base plate:
E
Do not seal the opening.
Bracket for wall mounting (accessories)
F
Note
Requirements to be met by on-site lines, e.g. regarding
cross-section, system pressure: See technical guides.
B C