Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 20

Installation sequence
Installing the indoor unit
Transport
!
Please note
Impacts, compression and tensile loads can
cause damage to the outside panels of the
appliance.
Never apply loads/weight to the top, front or
side panels of the appliance.
Requirements for the installation room
!
Please note
Unfavourable ambient conditions can lead to
malfunctions and appliance damage.
■ The installation room must be dry and free
from the risk of frost.
■ Ensure ambient temperatures between 0 and
35 °C.
Max. 70 % relative humidity (corresponds to
■
an absolute humidity of approx. 25 g water
vapour/kg dry air)
Danger
Dust, gases and vapours can be damaging to
health and trigger explosions.
Avoid dust, gases and vapours in the installation
room.
!
Please note
Overloading the floor can result in damage to
the building structure.
Observe the permissible floor load. Take
account of the total weight of the appliance: See
chapter "Pressure points".
Vitocal 222-S Type
230 V appliances
■
■
■
400 V appliances
■
■
■
Note
For line lengths 12 m, add extra refrigerant. The min-
>
imum room volume must be recalculated based on the
additional charge.
20
AWBT-M 221.C04
AWBT-M-E
221.C06
AWBT-M-E-AC
221.C08
221.C10
221.C13
221.C16
AWBT 221.C10
AWBT-E
221.C13
AWBT-E-AC
221.C16
Minimum room volume (to EN 378):
According to EN 378, the minimum volume of the
installation room depends on the refrigerant charge
and composition.
m
max
V
=
min
G
V
Minimum room volume in m
min
m Maximum refrigerant charge in kg
max
G Practical limit to EN 378, subject to the composi-
tion of the refrigerant.
For R410A: 0.44 kg/m
Note
If several heat pumps are to be installed in one room,
the minimum room volume must be calculated accord-
ing to the appliance with the greatest refrigerant
charge.
Minimum room volume in m
3
3
3
4.1
4.1
5.5
8.2
8.2
8.2
8.2
8.2
8.2