Prior To Installation - Viessmann VITOCAL 100-AW Installation, Service And Operating Instruction

Vitocal 100-AW AM2V Installation, Service and Operating

Prior to Installation

Mounting:
H Mount the outdoor module in a free-standing
position on a fixed supporting structure.
H In areas with snowfall, ensure the outdoor unit
has been installed using a snow stand or wall
mounting bracket that will elevate the outdoor
unit above the anticipated snow load.
H The weight of the outdoor unit must be taken
into account: see "Outdoor Unit Technical Data"
on page 89.
Setting:
H Do not install the exhaust side upwind.
H Carry out wall ducts and protective conduits for
plumbing and electrical connection lines without
using bent pipes and without changing the
direction of the lines.
Impact of weather conditions:
H When installing in areas exposed to wind, pay
attention to wind loads. When the outdoor unit
is mounted on a flat roof, significant wind loads
may arise depending on the wind load zone and
the height of the building. Include the outdoor
unit in the lightning protection system.
H When designing rain protection or canopy, pay
attention to the heat input (heating mode) and
heat output (cooling mode) of the unit.
Condensate:
H Ensure free drainage of the condensate away
from the outdoor unit.
Damping of sound and vibration between the
building and the outdoor unit:
H Make the hydronic connection to the outdoor unit
using flexible connections.
H Electrical cables should be installed without
tension.
1
IMPORTANT
Strong impacts may lead to a damage to the
jacketing of the unit. Do not press against the
outdoor unit jacketing.
1
IMPORTANT
Tilting the outdoor module sharply may lead to the
oil from the compressor entering the refrigeration
circuit and to a consequent failure during the start-
up. Maximum tilt angle: 45° for approximately 4
min., otherwise 30°
Placement of the outdoor unit:
H Select a location with good air circulation so that
cooled air can flow out and warm air can flow in.
H Do not install in corners, recesses or between
walls. This may lead to a recirculation of exhaust
air.
1
IMPORTANT
Restricting the free flow of air may lead to cooled
air (or heated in the cooling mode) being drawn
back in and lead to disruptions in the operation
of the unit, a loss of efficiency and a consequent
increase in electrical consumption.
H If set up in an area exposed to strong winds,
prevent the wind from affecting the fan area.
Strong winds may disrupt the air flow through the
evaporator.
H Select the installation location so that the
evaporator is not clogged by leaves, snow, etc.
H Consider sound propagation and reflection when
selecting the mounting location.
Design guidelines
H Do not mount the device under windows or next
to bedroom windows.
H Do not install the device in basement sumps or
depressions in the ground.
H Maintain a min. 10 ft. (3 m) distance from
basement sumps and windows.
H Maintain a distance from terraces, gutters or
surfaces with a protective coating of min. 10
ft. (3 m). At outdoor temperatures below 50°F
(10°C), cooled air blown out causes a risk of
icing.
H Avoid "short circulating" of air streams with
ventilation equipment. Maintain a min. 10 ft. (3
m) distance from the intake area of ventilation
units.
H The installation location must be easily
accessible, e.g. for service work
Outdoor Unit Installation
29