Wilkerson DE5 User Manual
Page 5
NOTE
If purge air is required to be piped to a remote location, it is
necessary to use oversized tubing to prevent back-pressure.
Restricting the purge flow can cause the dryer to malfunction.
4. Use Teflon tape or pipe sealant on threads. Check all air connections for leakage, using
soap solution prior to putting dryer into permanent service.
5. It is recommended that a bypass line with shut-off valves be installed to provide constant
air flow to the system, should the dryer require servicing.
6. Always install a 5-micron particulate prefilter and a coalescing filter upstream to remove
entrained particulates, moisture and oil. A 0.5-micron afterfilter should be installed down-
stream to remove any desiccant dust that may migrate from the desiccant towers.
Factory Recommended Dryer Installation
Figure 3
D. Operating Specifications – The DE3, DE4 and DE5 series compact heatless dryers can
be sized to operate from 40 to 150 PSIG (2,7 to 10,3 bar).
1. The dryers must be operated in accordance with the factory sizing charts and original cus-
tomer requirements in order to achieve desired dewpoints. Inlet pressure, inlet tempera-
ture, and outlet flow conditions are always specified when purchased.
2. Maximum inlet air temperature is 125°F (52°C).
3. Do not operate dryers in temperatures so low that freezing is a possibility.
E. Electrical Connections – Before wiring, check the dryer nameplate for electrical characteris-
tics. Standard electrical characteristics are 115 Volt, 50/60Hz operation. Models operating on
230 Volt, 50/60Hz operation are available.
1.
IMPORTANT! No overload protection is provided in the dryer and unit should be
wired into a protected circuit. A knockout hole with romex connector is provided for
electrical connection.
Instruction Manual / DE3, DE4 and DE5
Wilkerson Compact Heatless Air Dryers
5-MICRON
PREFILTER
WITH AUTO
DRAIN
MICROALESCER
OPTIONAL
REGULATOR
SHUT-OFF
VALVE
AIR DRYER
WITH MOISTURE
INDICATOR
BYPASS LINE
BYPASS SHUT-OFF VALVE
SHUT-OFF
VALVE
MOISTURE
INDICATOR
0.5-MICRON
POSTFILTER
OPTIONAL
REGULATOR
!