Ahu Storage Requirements; Short Term Storage; Long Term Storage - Carrier AiroVision 39 HQM Advance Installation, Operation And Maintenance

of the unit sections be used for jacking or tracking the
AHU. FOR HORIZONTAL TRANSPORT ALWAYS
PROVIDE SUPPORT UNDER THE LIFTING POINTS.
- The use of bars / tubes as rollers can result in damage to
the installation frame.
- Roller should be adequate to support the weight of the
AHU section
- The roller used for AHU horizontal transport MUST BE
FREE ROLLING.
- The rollers are not supplied by factory.

3 - AHU STORAGE REQUIREMENTS

3.1 – Short Term Storage
To properly store the AHU, it is critical to meeting the
storage requirements as per the following;
3.1.1 Indoor storage weather: < 70% RH, < 40º C, all
AHUs sections are clearly label with sticker mentioning
"STORE INDOOR"
3.1.2 Well ventilated store room precaution to prevent
internal condensation that can lead to rust.
3.1.3 Clean and non-corrosive environment.
3.1.4 Storage platform to be smooth, minimum
vibration and level.
3.1.5 Ensure properly packed or cover the AHU,
ensure the openings of the AHUs like the damper, fan
and coil opening are closed so that no dust, no
external material or animal allow to enter the AHU.
Store Indoor before Installation
3.2 – Long Term Storage
Storage period that took longer than 6 months inside
the controlled environment, as explained above in
Normal storage, less than 6 months; still require
serious and proper preservation actions during the
storage period
3.2.1 Belts to be removed and kept safe with proper
tag of the AHU in conditioned space, belts shipped
loose, as standard in production of 39HQM and
packed in plastic bag placed inside fan section.
3.2.2 Filters to be removed and stored in a proper
packed & conditioned space.
3.2.3 Periodically check fan bearing to see if re-
lubricate is required
3.2.4 Periodically unload the bearing by turning the fan
wheel by hand. This operation prevents bearing
corrosion by redistributing the bearing grease.
After long term storage, grease should be purged from
the bearing and fresh grease injected prior to start-up.
3.2.5 Motors should be stored in a clean, dry
environment protected from moisture.
3.2.6 Periodically check of the AHU packing to ensure
no sand/dust accumulation.
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