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, or other delicate
components such as control boards 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.
In the case of a fully exposed cabinet unit, the unit must
obviously by handled by the exterior casing. Gloves should
be worn when handling finished, painted units and should
never be set down on unclean, hard surfaces. Failure to
follow these instructions may lead to scratching or gouging
of the finished surface.
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 using
the mounting points provided, and positioning the unit on
a LEVEL plane. Vertical units are designed to be bolted to
the wall structure through the slotted wall mounting holes in
the chassis, used for anchoring to pre-installed wall studs.
Horizontal units are provided with slotted ceiling mounting
brackets where hanging rod and rubber-in-shear or spring
vibration isolators, supplied by others, can be used for
proper suspension and vibration isolation.
The type of mounting device is a matter of choice, however
the mounting point should always be that provided in the
chassis or cabinet.
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 electrical. At this
time it should be verified that the proper types of services
are actually provided to the unit. On those units requiring hot
water, the proper line size and water temperature should be
available to the unit.
On units with steam heating coils, the proper line sizing and
routing should be verified. The maximum steam pressure
should never exceed 15 psig. The drain piping and steam
trap, supplied by others, should be sized and routed to allow
for proper condensate flow.
The electrical service to the unit should be compared to
the unit nameplate to verify compatibility. The routing and
sizing of all piping, and the type and sizing of all wiring
and other electrical components such as circuit breakers,
disconnect switches, etc., should be determined by the
individual job requirements and should not be based on the
size and/or type of connection(s) provided on the equipment.
Verify the electrical conductor size is suitable for the
distance to the equipment connection and will support the
equipment electrical load. All installations should be made
in compliance with all governing codes and ordinances.
Compliance with all codes is the responsibility of the
installing contractor.
Provide access clearance for electrical enclosure per local
and national electrical code requirements, minimum of 36".
It is recommended to leave 36" access on pipe connection
side. It is also recommended to leave room for filter removal,
equivalent to the physical size of the filter.
16
Handling and installation
HANDLING AND INSTALLATION