Storage; Suggested Reference Storage Room Conditions; General Storage Considerations - Data Aire DAPA-2.5 Installation, Operation & Maintenance Manual

Storage

Short-term storage is considered 60 days or less from shipment date. Long-term storage is considered
any period beyond 60 days from date of shipment.
It is mandatory that a detailed record be maintained during this long-term storage period, such as, but
not limited to proper sealing of the cabinet, rotation of the blowers and bearings, and protection of all
motors from moisture. Check the fan rotation monthly, the fan and motor should be rotated several
times to replenish the bearing surfaces with fresh grease as needed and to prevent flat spots of the fan
shaft. The fan impeller should be left at approximately 180° from that of the previous month to prevent
the belts from taking a set position.
If equipment is stored for longer than 60 days special precautions must be taken to avoid coil damage.
All coils should be charged and sealed with a low pressure 1 to 3 PSIG (6.9 to 20.7 kPa) inert gas, such
as nitrogen. This prevents contaminates from entering the coils; then when the seal is broken at
installation, the rush of escaping gas verifies 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 pin hole leaks to
develop in the coil tubes.
It is the responsibility of the customer to submit a monthly log sheet showing the condition of the unit
and noting any discrepancies. A copy of the log sheet should be sent to Data Aire. Failure to perform
the long-term storage requirements may void the warranty.

Suggested Reference Storage Room Conditions

• Dry bulb temperature range: 65°F to 85°F(18.3C) to 85°F (29.4C) .
• Effects of high temperatures may dry out components or may damage electrical components.
• Effects of low temperatures may cause freezing damage to coil, compressor, system
components, electrical components, etc. Freezing temperatures must be avoided.
• Humidity range: 25 to 50% RH.
• High humidity may cause damage to insulation and electrical components. Storage in moist
air, above 50%, should be avoided. High humidity may cause rust on metal components such
as sheave, pulley, blower housing, cabinet parts, supports, etc.
• Low Humidity may cause brittle conditions to components within the unit. At low humidity,
problems of brittleness or electrical static might arise for the equipment.
• Level with floor.
• Units with compressor maximum tilt angle is 30° (compressor not running) but recommend
the unit be set level for 24 hours prior to final installation.
• Store at non-condensing temperature and humidity conditions.

General Storage Considerations

• All equipment shall be stored for safety of occupants. Per OSHA codes and codes applicable
to your installation.
CAUTION: A complete system drain-down after factory functional testing
cannot be assured for this product. Therefore, if exposed to freezing
conditions, rupture piping and component may occur.
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