Data Aire DAFC-11 Installationshandbuch PDF herunterladen (Seite 8)

1.4.2 Upﬂ ow Units

Upﬂ ow units will typically be supported by vibration isolation pads and/or ﬂ oorstands which may also

include leveling screws. An (optional) air discharge plenum may be factory provided. The plenum

ships loose and must be ﬁ eld attached at the top of the unit frame.

Alternately, an air distribution plenum must be ﬁ eld fabricated with supply grilles to distribute the

air. Units are shipped with a drive package to overcome the external static pressure (ESP). Adjust-

ments to the blower speed may be required to adjust the actual site conditions.

1.5 Paperwork

Each Data Aire unit is shipped with an envelope with start-up sheets that are required to be com-

pleted during installation and start-up. Also included with the paperwork is the warranty and infor-

mation that includes wiring diagrams, speciﬁ c component literature, warranty registration cards and

a copies of the unit and microprocessor Installation/Operation and Maintenance manuals.

A yellow tag is attached to the outside decorative door to indicate components that may have been

packaged and shipped loose within the unit cabinet (y-strainers, jackstands, condensate pumps,

ﬂ ow switches and other components not factory installed).

It is the responsibility of the installing contractor to return the start-up sheets and warranty registra-

tion card to Data Aire for proper unit warranty activation. Failure to do so may cause delays and in

some cases void the warranty.

1.6 Storage

Data Aire equipment is shipped ready for immediate installation. In some instances it may be nec-

essary to store the equipment for a short 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 and never stacked. Frequent relocation should be avoided.

If equipment is stored longer than thirty (30) days special precautions must be taken to avoid coil

damage. All coils should be charged and sealed with a low pressure (1 – 3 PSIG) inert gas (such

as nitrogen). This prevents contaminants from entering the coils. When the seal is broken at instal-

lation the rush of escaping gas veriﬁ es the coil is still leak free. If coils are not charged and sealed,

condensation mixes with air pollutants forming a weak acid and over time can cause pinhole 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 hoses (humidiﬁ er) and belts. All moving parts (blowers and motors) should be hand

tested to ensure that they are free and clear of debris prior to start-up. Finally, verify that lubrication

is fresh and full.

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Data Aire DAFC-11 Installationshandbuch Seite 8