Viessmann Vitocal 222-S Installation And Service Instructions For Contractors page 13

Installing the outdoor unit
Weight of outdoor units
Vitocal 222-S
230 V appliances
400 V appliances
Installation location
Select a site with good air circulation, so that the
■
cooled air can dissipate and be replaced by warm
air.
■ Never install in the corners of rooms, in recesses or
between walls. This could result in an "air short cir-
cuit" 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.
(cont.)
Type
AWBT-M
■
AWBT-M-E-AC
■
AWBT
■
AWBT-E-AC
■
■
■
■
■
■
■
221.C04
221.C06
221.C08
221.C10
221.C13
221.C16
221.C10
221.C13
221.C16
Take the lengths of the refrigerant lines into account:
see "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 concerning the propagation
and reflection of sound.
Technical guide
Never install next to or below bedroom windows.
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 "minimum
clearances".
Installation sequence
Weight in kg
94
94
99
137
137
137
148
148
148
13