6189902 – Rev. C 07.2012
3
GB
Safety
Important – Read this first!
Please read the following information and operating instructions
included with this product before use. This information is for your
safety and it is important that you follow these instructions. It will
also help prevent damage to the product. Failure to operate this unit
in accordance with these instructions or using unauthorized JUN-AIR
spare parts could cause damage to the unit and/or serious injury.
CAUTION: To reduce risk of electric shock
•
Only authorized JUN-AIR distributors should conduct service.
Removing parts or attempting repairs can create an electric shock
hazard. Refer all servicing to authorized JUN-AIR distributors.
WARNING: To reduce the risk of electrocution
•
Do not operate unit outside the electrical voltage range(s)
stated on the product label.
CAUTION: To prevent injury
•
Always unplug unit when attempting repairs as this unit is
thermally protected and can automatically restart when the
overload resets.
•
Wear safety glasses when servicing this product.
Warranty
•
Provided that the Instructions for operation, maintenance
and service have been carried out, The JUN-AIR iQ-Dryer is
guaranteed against faulty material or workmanship for 2 years
or 4,000 hours of operation whichever comes first.
•
The guarantee does not cover damage caused by violence,
misuse, incorrect repairs or use of unauthorized spare parts.
•
Costs of transportation of parts/equipment are not covered by
the guarantee.
•
JUN-AIR’s Conditions for Sale and Delivery will generally apply.
•
JUN-AIR reserves the right to change technical specifications/
constructions.
General Information
Function:
The JUN-AIR Dryer uses the pressure swing adsorption principle
of drying compressed air, utilizing two identical columns each
containing a hygroscopic desiccant bed.
Dryer Operation:
Air at elevated temperatures exiting the compressor is routed
through an after-cooler. After being cooled, the air enters the dryer
through a shuttle valve (a) and is directed into one of the desiccant
columns. Each column contains a unique desiccant cartridge which
incorporates inlet and outlet filtration.
Bulk liquids (water) and particles are removed by the filtration/
separation stage (b) which is located on the inlet to the cartridge.
Water is retained in a “quiet zone” until the column is regenerated
(when it will be vented to atmosphere as the column is depressurized).
Following the filtration stage, air passes through the desiccant bed (c)
where any remaining moisture is adsorbed by the desiccant beads.
Figure 1
After drying, the air passes through another particle filter (d),
which retains any remaining desiccant particles that may have
been carried through the system (<1 µm / ISO 8573.1 class 2 dust).
Simultaneously, a small amount of dry air is counter-flowed down
through the other cartridge and exhausted to atmosphere, removing
the moisture and thus regenerating that desiccant column.
The dryer is controlled by a PLC which periodically switches the
solenoid valves when the compressor is running, reversing the
function of each column and therefore ensuring the continuous
supply of clean and dry air.
WARNING: Do not tamper with outlet tubing from the
exhaust ports on the dryer solenoid.
In order for the dryer to function properly, the exhaust ports on the
dryer must be routed to the collection bottle through included 8mm
tubes.
If the tubing to the collection bottle is restricted or changed, a
reduction in performance will occur. This will void the warranty on
the dryer and system.
PLC Operation:
The iQ-Dryer comes ready to operate. The PLC in the system displays
the total run hours, total number of system cycles, and the individual
dryer column cycle count. This is displayed on the main screen. The
following is a description of the controls, connections and common
displays for the PLC.
