8
1.4.2 Upow Units
Upowunitswilltypicallybesupportedbyvibrationisolationpadsand/oroorstandswhichmayalso
include leveling screws. An air discharge plenum may be factory provided which ships loose and
must be attached at the top of the unit frame.
Alternately,anairdistributionplenummustbeeldfabricatedwithsupplygrillestodistributethe
air. Units are shipped with EC (Electronically Commutated) motors and “plug fans”. Fan speed is
factory set based on order. Fan speed can be changed in 1% increments through the unit’s micro-
processor controller, Data Alarm Processor 4 (dap4). See the dap4 operation manual for details
and recommended settings.
1.5 Paperwork
Each Data Aire unit ships with a start-up sheet that should be completed during installation. Also
included in the paperwork is a warranty/information packet that provides important wiring diagrams,
speciccomponentliterature,warrantyregistrationcardsandothervaluablepaperwork,includinga
copy of this Installation/Operation and Maintenance manual.
A yellow tag is attached to the outside decorative door to indicate articles that may have been pack-
aged and shipped loose within the unit cabinet. Typically this would be jackstands, condensate
pumps and other loose components that are not factory mounted.
It is the responsibility of the installing contractor to return the start-up sheet and warranty
registration card to Data Aire for proper activation of the unit warranty. Failure to do so
may cause delays and some cases void the warranty.
1.6 Storage
Your Data Aire equipment comes ready for immediate installation. In some instances it may be
necessary to store the equipment for a period of time. If you must store the equipment it should
be done in a dry area, out of the weather, protected from damage by other equipment in storage or
transportation equipment, never stacked, and avoid frequent relocation.
If equipment is stored for longer than 30 days special precautions must be taken to avoid coil dam-
age. All coils should be charged and sealed with a low pressure (1-3 PSIG) inert gas, such as
nitrogen. This prevents contaminates from entering the coils: then when the seal is broken at in-
stallation,therushofescapinggasveriesthecoilisleakfree.Ifcoilsarenotchargedandsealed
condensation mixes with air pollutants forming a weak acid and over time can cause pin hole leaks
to develop in the coil tubes.
When equipment is installed after storage caution should be taken to inspect and replace, if re-
quired, rubber components. All moving parts, such as fans and motors, should be hand tested to
ensure that they are free and clear prior to start-up. Finally, verify that all lubrication fresh and full.
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