Aircel DHT-100 Installation And Operation Manual - Warning!
16
Service Information
To reach a field service technician or for technical
support, please call the number listed on the
manual back cover.
Maintenance
Refrigerated air dryers require very little
maintenance for satisfactory operation. Good
performance can be expected if the following
routine maintenance steps are taken.
WARNING!
• Before any service or maintenance
work is performed on the high inlet
temperature series refrigerated air
dryer system, disconnect power
supply and lock out power supply
and depressurize system before
performing maintenance or service
work.
• Follow proper lock out/tag out
procedures before performing
service or maintenance work.
• Prior to performing any
maintenance on the dryer, all
personnel are strongly advised to
familiarize themselves with the
equipment by reading the entire
contents of this operation manual.
All safety procedures should be
followed prior to performing any
maintenance activity on the dryer.
Daily
With the dryer on-line:
• Verify the operating pressure, temperature, and
flow rate are correct and conform to those listed
in the Rating and Specification Information
section. Adjust system if required.
• Always check refrigerant gauges to insure
refrigeration system is working properly.
• Check condensate drain separator for proper
condensate discharge. If no discharge is evident
then depressurize the unit, dismantle and clean
separator and/or drain line. Proper drain trap
maintenance is the owner’s responsibility. It is
not covered by warranty.
• Make certain airflow is directed through dryer
only. Observe by-pass valves proper positions.
Weekly
• Repeat all daily inspections and record data in
Maintenance log.
• Clean the condenser coils of accumulated
dust and dirt with a soft brush and/or with
air pressure from a compressed air nozzle
(maximum 100 psig).
• Check the gauge readings for good system
operation.
• Check oil removal filter (coalescer) indicator (if
applicable); if it is red, replace the filter.
Aircel DHT Series - Models 20 - 125