EKOM DK50 4x2VT/M, User Manual

Page: 44 / 60

PRODUCT MAINTENANCE
NP-DK50-Nx2VTM-AD-EN-6_04-2022 44 04/2022
18.2. Check of product operation

Check air pump condition
– the
aggregates should be operating
normally without excessive vibration or
noise. Troubleshoot any problem or
call in service personnel if trouble is
detected.

Visually inspect fan operation
– the
fans must be operating when the
aggregates are running. Troubleshoot
any problem or call in service
personnel if trouble is detected.

Check to ensure the power cord, the
cable for the pressure sensor on the
air
tank and the connecting
compressed air hoses are
undamaged. Replace damaged
components or call in service
personnel.

Check the ambient temperature at the
display
– the ambient temperature
must be below the temperature limit
(40°C). Cool the space if the
temperature is high.

Check for alarm conditions on the
display
– troubleshoot and remedy all
alarms.
18.3. Check the compressed air
connections for leaks and inspect
the equipment
Leak testing

Check the compressor's compressed
air lines for leaks during operation
–
pressure supplied by the compressor.

Use a leak analyser or soapy water to
check all joints and connections for
leaks. Tighten or reseal the connection
where leaks are found.
Inspecting the equipment

Check the condition of the compressor
air pump for normal operation and
noise levels.

Fan operation check
– the fans must
be running during the defined
compressor work cycles.

Check the filter condition
– clean dirty
filters or replace with new filters.

Check the solenoid valves in the valve
module.

Check the operation of the automatic
condensate drain.

Call in service personnel if a
malfunction is suspected.
18.4. Inspection of electrical
connections
Risk of electric shock.
Inspect the product’s electrical
connections when the mains
are disconnected.

Check the mechanical operation of
main circuit breaker FA13.

Check the power cord, conductors
connected to the X1 terminal strip and
the main circuit breaker FA13 to
ensure they are undamaged. Inspect
to ensure the connection terminals are
properly supported to relieve tension.

Check to ensure all threaded
conductor terminals are tight (on motor
circuit breakers FA1-6, contactors
KM1-6, etc.). Tighten all loose
terminals with a screwdriver.

Visually inspect the connection of
individual cables to the terminal strip
X1 (spring clips) and the LOGO!
control system (screw terminals).

Inspect all screw terminals for the
protective green and yellow PE
grounding
conductors in the
switchboard, the motor section, the
cooling unit and the pressure vessel.
Tighten any loose terminals.
18.5. Condenste drain
A wet floor resulting from
overflow from the vessel poses
a slip hazard.