Data Aire DAC Series Operation And Maintenance Manual
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Contents
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71.4.2 Upflow UnitsUpflow units will typically be supported by vibration isolation pads and/or floorstands whichand may also include leveling screws. An air discharge plenum may be factory provided whichships loose and must be attached at the top of the unit frame.Alternately, an air distribution plenum must be field fabricated with supply grilles to distributethe air. Units are shipped with a drive package to overcome external static pressure. Adjustmentsto the blower speed may be required to adjust to actual conditions.1.5 PaperworkEach 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 wiringdiagrams, specific component literature, warranty registrations cards and other valuable paperwork,including a copy of this Installation/Operation and Maintenance manual.A yellow tag is attached to the outside decorative door to indicate articles that may havebeen packaged and shipped loose within the unit cabinet. Typically this would be jackstands,condensate pumps and other loose components that are not factory mounted.1.6 StorageYour Data Aire equipment comes ready for immediate installation. In some instances in maybe necessary to store the equipment for a period of time. If you must store the equipment it shouldbe done in a dry area, out of the weather, protected from damage by other equipment in storage ortransportation equipment, never stacked, and avoid frequent relocation.If equipment is stored for longer than 30 days special precautions must be taken to avoid coildamage. All coils should be charged and sealed with a low pressure (1-25 psig) inert gas, such asnitrogen. This prevents contaminates from entering the coils; then when the seal is broken atinstallation, the rush of escaping gas verifies the coil is still leak free. If coils are not charged andsealed condensation mixes with air pollutants forming a weak acid and over time can cause pin holeleaks to develop in the coil tubes.When equipment is installed after storage caution should be taken to inspect and replace, ifrequired, rubber hoses and belts. All moving parts, such as blowers and motors, should be handtested to ensure that they are free and clear prior to start-up. Finally, verify that all lubrication isfresh and full.It is the responsibility of the installing contractor to return the start-up sheet and warrantyregistration card to Data Aire for proper activation of the unit warranty. Failure to do somay cause delays and in some cases void the warranty. |
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