EKOM AD2250, Руководство пользователя

Страница: 36 / 92

PRODUCT MAINTENANCE
NP_AD500-2250-1_01_2020 -36- 01/2020
21.3. Check of product operation

Check fans operation (visually)
– the fans must be operating when the air supply is operating. In
case of a negative result, look for the cause of the given condition or call service.

Check if the power cord and pneumatic hoses are not damaged. Replace the damaged parts or
call service.

Check ambient temperature
– ambient temperature must be below temperature limit (40°C).
Improve cooling in the room if the temperature is higher.

Check the service indicator on the display screen and schedule service as needed.

Check the operating condition of the equipment (see Chapter 21.6)
21.4. Check of pneumatic connection leakage and device inspection
Leakage check

Check for leaks in the dryer’s pneumatic system when the dryer is running and pressurised.

Use a leak analyser or soapy water to check all joints and connections for leaks. Tighten or reseal
the connections where leaks are found.
Device inspection

Fan operation check
– the fans must be running during the dryer operation.

Check the solenoid valves in the valve module
– the valves should cyclically switch the dryer
chambers as described in Chapter 8.1.

Check the condition of the internal filters and filter sets
– the filters must be undamaged and
sufficiently clean.

Check the operation of the automatic condensate drain.

Check the operating condition of the equipment (see Chapter 21.6).

Replace any defective parts, if needed.
21.5. Check of electrical connection
Risk of electric shock.
Check electrical connections on the device disconnected from the mains.

Check mechanical function of the main switch.

Check if the power cable and conductors are not damaged.

Visually check if cables are connected to the terminal box.

Check all screw connections of the green-yellow PE grounding conductor.
21.6. Checking the operating condition of the equipment

Check the service and failure indicators on the display unit as specified in Chapter 20 and
schedule service or repairs as needed.

Only a service technician is permitted to modify program parameters using the cursor buttons on
the LOGO! module after entering password.

The operator may monitor the individual values on the display but has no access to the
parameters of the program.