OTHER SETTINGS:
All other settings (4-20mA ‘IN’, and 4-20mA ‘OUT;) have been factory set. IMPORTANT: it is possible to
inadvertently access these program menus, it is advisable to not change any range settings; as this would
make the unit not respond correctly. For POWERLOC units with three (3) wire probes, the following
information will apply to the 4-20mA outputs on J3, pin 16 =(+) and pin 17 =(-). The Dew Point range is as
follows:
DEGREE ºF -148 @ 4mA through to +68 @ 20mA
DEGREE ºC -100.0 @ 4mA through to +20.0 @ 20mA
Section 17 JC, JT & JL Filters
Receiving and Inspection
Upon receipt of the filter(s), immediately check for damage that may have occurred during shipping. If there
is any damage, do not install or attempt to repair the filter. File a claim with the shipping company and
contact either your local distributor or contact AIRTEK’s customer service department for further instructions.
Since the filter is shipped F.O.B. factory, the carrier is not covered by filter warranty.
WARNING! FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR
SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE SEVERE INJURY OR PROPERTY
DAMAGE.
Safety: AIRTEK JW, JL & JT filters are designed with safety as a prime consideration. Each filter is tested
to 1-1/2 times its maximum operating pressure prior to shipment.
Installation
All AIRTEK filters, coalescer, adsorbers should be installed at the highest pressure point available, and as
near as possible to the equipment to be protected with a drip leg immediately upstream. The coalescer
should be in a visible and easily accessible location for periodic draining and maintenance.
All filters should be selected based on compressed air flow rate and pressure, not on the basis of pipe size.
If new piping is installed, pipe size must also be selected on the basis of flow rate and pressure. Be sure all
piping is supported.
Filters should be piped in accordance with the instruction tags, flow arrows, and “IN” and “OUT” labels
supplied
with the filter. See recommended system installation diagram on page 5.
Before filter installation, the customer may wish to install a pressure relief device in accordance with
paragraphs UG-125 through UG-136 of the ASME Boiler and Pressure Code section VIII-division I.
You may also wish to check with local requirements.
Filter Bypass
A three-valve bypass around the filter is recommended so that the elements can be charged without shutting down
the branch or complete air system. Piping should not be allowed to place any stress on the filter connections.
For systems that can not tolerate unfiltered air during element replacement, a second filter should be installed in
the bypass. See installation diagrams.
Element Replacement
As the filter is used, the replaceable element will become plugged with particles from the air stream. The
gradual buildup of these particles will cause an ever increasing pressure drop through the element. This
pressure drop will be indicated by the differential pressure gage that is provided with the filter. The filter
should be changed when the indicator suggests the element is plugged. The increasing pressure drop will
cause a reduction in the air system efficiency.
WARNING! COMPLETELY VENT INTERNAL AIR PRESSURE TO ATMOSPHERE BEFORE
DISASSEMBLING FILTER.
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