Precautions Before Storage - Quincy QHD750 Instruction Book

6.6

Precautions before storage

Dryer units stored after operation
If the unit will not be started again for a period of up to 6 months:

Put the correct number of VCI-plates (Volatile Corrosion Inhibitor) in the cubicle. (1 VCI plate/25L
volume, part number VCI-plate 0018 9732 01).

Close the door of the cubicle . Cover the unit with plastic sheeting to reach down just over the
dryer.

Store the unit in a clean, dry, well ventilated warehouse. Stand the unit upright in its crate or on the
pallet. The dryer unit is now ready for storage for maximum 6 months. The storage period remains
valid provided that the ambient conditions remain normal (meaning no excesses of heat, cold or
high humidity). If the unit is to be stored for a period longer than 6 months then repeat the storage
maintenance procedures once every subsequent 6 months.

Follow installation checklist before starting.
Transportation
The purpose of these procedures is to ensure continued protection against corrosion or other damage
during transportation.
These instructions also apply to units which (in exceptional cases) are to be returned to Quincy.
Dryer units

Carry out the storage instructions.

Place the original plastic cover over the unit, or cover it up with plastic sheeting secured with
adhesive tape.

Place the unit in its original crate. If the original crate is not available, construct a wooden crate
strong and safe enough to withstand routine handling by fork lift or slings and crane.

Apply the shipping data to the crate, using indelible ink. Apply the markings on both sides. If the
original crate is used, delete the old markings.

Where applicable be sure to include the requisite customs and transport documents, for shipment
with the unit.
Inlet / outlet flanges
When storing the dryer, it is advisable to cover inlet and outlet flanges with tape (preferably humidity
adsorbing).
Inlet, pressure relief, regeneration and check valves
Until further notice, no special precautions should be taken on the inlet valve, pressure relief valves,
regeneration air valves and/or check valves.
Pressure dewpoint sensor
When a pressure dewpoint sensor is installed, make sure that inlet and outlet valves to the sensor block
housing are closed. This to avoid any contamination of the dewpoint sensor while the dryer is not used.
Closing these valves will result in a faster response time. Also keep in mind that the dewpoint sensor is
only calibrated for one year (certificate).
When the dryer is put into storage for more than one year, then the dewpoint sensor has to be recalibrated.
Desiccant

When ordering the desiccant, you will receive the required / ordered quantity either in bags
or in barrels, depending on the quantity and/or type that has been ordered.

Both these adsorbing materials are used for "drying" the compressed air, but this does not
mean that these can withstand free water. In fact, when these adsorbers come in contact
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Instruction book
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