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Handling and installation
Installer to provide the
following:
A mounting system or frame.
n
n
This frame should elevate the
unit above the floor such that
the unit's air discharge meets
the bottom of the supply air
grille without any significant
gaps, as well as allow for
piping or the condensate drip
tray to drain condensate from
the unit (when required).
All secondary water piping
n
n
and valves including isolation
valves on the supply and
return, balancing valves, flow
control zone valve and other
valves/controls as specified.
All mounting hardware
n
n
(threaded rods, nuts, etc.) and
primary air flexible ducting.
Condensate drainage from the
n
n
drip tray outlet, where required.
Installation
Check the unit labeling to
n
n
ensure that the proper unit
is being installed at each
location.
Determine the orientation of
n
n
the air and water connections
in relation to the site plan.
Check to ensure there is
n
n
adequate space within the
room enclosure for the
installation of the unit and
to make the piping and duct
connections.
Check the installation space
n
n
for the unit to ensure adequate
clearance to remove the lint
screen during maintenance.
Ensure the return air path to
n
n
the unit is clear and does not
restrict airflow to the unit.
24
Position the unit in the enclosure
n
n
and fix it to the supporting frame
by the mounting brackets. Ensure
that the unit's air discharge meets
the bottom of the supply air grille
without any significant gaps.
While all equipment is designed for
durability and fabricated with heavy
gauge materials and may present a
robust appearance, great care must
be taken to assure that no undue
force is applied to the coil, piping,
drain connection or other delicate
components during handling.
Wherever possible, all units should
be maintained in an upright position
and handled by the chassis, plenum
sections or as close as possible to
the mounting points.
Although Zehnder Rittling does not
become involved with the design
and selection of support methods
and/or components, it should be
recognized that unacceptable
operating characteristics and/
or performance may result from
poorly implemented unit support.
Additionally, proper clearance must
be provided for service and removal
of the equipment.
Anchoring the equipment in place
is accomplished by hanging vertical
units from the mounting strip, using
the mounting points provided on
horizontal units and positioning
the unit on a level plane. The drain
pan is pitched within the unit to
provide proper drainage when the
unit is installed level. Care must be
taken to ensure that the drain pan
does not slope away from the drain
connection.
The type of mounting device is
a matter of choice, however the
mounting point should always be
that provided in the chassis.
Improper mounting could
result in the unit falling from its
position, causing personal injury
or even death.
After mounting the unit, it is then
ready for the various service
connections such as water and
drain (where applicable). At this
time it should be verified that
the proper types of services
are actually provided to the
unit. On those units requiring
chilled water and/or hot water,
the proper line size and water
temperature should be available
to the unit.
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