PMT200B SERIES DryLine
®
DEHYDRATOR USER MANUAL
10
The PMT200B DryLine
®
Dehydrator requires
relatively little maintenance to ensure
satisfactory operation over long periods of time.
This section outlines the recommended annual
preventive maintenance for the unit and the
suggested overhaul for every 6000 hours of
compressor operation.
The PMT200B DryLine
®
Dehydrator performs at
its optimum if it is routinely checked for correct
performance. This checking generally consists
of an annual inspection of the condition of the
air intake filter and an overhaul after every 6000
hours of compressor operation. Performance of
these measures is sufficient to ensure continued
reliable operation.
The annual maintenance of a PMT200B consists
of a preventative maintenance inspection of the
dehydrator and cleaning (or replacement) of the
foam air intake filter.
These tasks can easily be performed in the
field with the unit connected to the transmission
line system and with only the front access door
opened for maintenance.
Dehydrator Filter Element Replacement
Replace the air intake filter
The air intake filter protects the compressor from
contamination and dust. Periodic replacement
extends the life of the compressor. To gain
access to the element, push in on the cover and
rotate the house approximately 1/4 turn CCW.
The filter is made of a fibrous material. It should
be replaced once a year (or more frequently, if
the operating environment is very dusty.)
CAUTION:
Do not apply oil or other chemicals to the filter
element.
Warning:
Electrical Hazard! Unplug power cord before
servicing unit.
Inspection includes checking for loose
or damage hoses, fittings and electrical
connections. Open the top panel or front door
and verify that there is no water build-up in the
two filter bowls located inside the front cover of
the dehydrator. There may be some droplets
of water in the filter bowls (the lower portion of
each bowl), but there should be only a small
amount of liquid in either bowl.
If there is excessive water, refer to the
troubleshooting section. Replacement of the
filter elements in the water filter and coalescing
filter is covered in the overhaul section of this
manual.Check the electrical connections.
Check the screw at the power input connector
to ensure that the AC power cord is securely
terminated. Check the screw-in alarm terminals
to ensure that all wire connections are tight.
A loose or damaged connection may result in
erratic operation and unnecessary downtime.
Refer to the troubleshooting section if an
electrical problem is encountered.
Ensure an electrical safety ground is installed on
the ground stud located adjacent to the power
input connector. (It is intended to be customer
installed in the field to your halo grounding
system.)
Make sure the element is seated completely in
the housing and then replace the cover. If a new
element is used, discard the old element.
