Zehnder Rittling VS Series Installation, Operation And Maintenance Manual page 7

General information
Unit protection: Cover units
on the job site with either
the original packaging or an
equivalent protective covering.
Cap the open ends of pipes
stored on the job site. In areas
where painting, plastering,
and/or spraying has not been
completed, all due precautions
must be taken to avoid
physical damage to the units
and contamination by foreign
material. Physical damage and
contamination may prevent
proper start-up and may result in
costly equipment clean-up.
Examine all pipes, fittings, and
valves before installing any of the
system components. Remove
any dirt or debris found in or on
these components.
Pre-installation: Installation,
operation and maintenance
instructions are provided with
each pallet. Horizontal equipment
is designed for installation
above false ceiling or in a ceiling
plenum. The installation site
chosen should include adequate
service clearance around the
unit. Before unit start-up, read
all manuals and become familiar
with the unit and its operation.
Thoroughly check the system
before operation.
Prepare units for installation
as follows:
Compare the data on the unit
■
■
nameplate with ordering and
shipping information to verify that
the correct unit has been received.
Keep the cabinet covered with the
■
■
original packaging until installation
is complete and all plastering,
painting, etc. is finished.
Verify refrigerant tubing is free of
■
■
kinks or dents and that it does not
touch other unit components.
Inspect all electrical connections.
■
■
Connections must be clean and
tight at the terminals.
Remove blower shipping support
■
■
packaging, if applicable.
Some airflow patterns are field
■
■
convertible. Locate the airflow
conversion section of this manual
for instructions.
All three phase scroll compressors
must have direction of rotation
verified at start-up. Verification is
achieved by checking compressor
amp draw. Amp draw will be
substantially lower compared to
nameplate values if wired incorrectly.
Additionally, reverse rotation results
in an elevated sound level compared
to correct rotation. Reverse rotation
will result in compressor internal
overload trip within several minutes.
Verify compressor type before
proceeding.
Do not store or install units in
corrosive environments or in
locations subject to temperature
or humidity extremes (e.g.,
attics, garages, rooftops, etc.).
Corrosive conditions and high
temperature or humidity can
significantly reduce performance,
reliability, and service life. Always
move and store units in an
upright position. Tilting units on
their sides may cause equipment
damage.
Cut hazard: Failure to follow
this caution may result in
personal injury. Sheet metal
parts may have sharp edges
or burrs. Use care and wear
appropriate protective clothing,
safety glasses and gloves when
handling parts and servicing heat
pumps.
General information 5