4 Maintenanc
e
4 MAINTENANCE
4 - 1
Daily Inspection
Check following points during usual operations. If you find some problems, immediately stop the operation and refer to
“Chapter 5 Troubleshooting” as soon as possible.
•
There is no air leakage
•
The running lamp is lighting during operation
•
Drain is being discharged from drain tube
•
The pointer of the evaporation thermometer indicates in the green zone when it is running with pressurized air
supply.
•
The pointer of the evaporated thermometer indicates about 3~10
o
C lower than that of ambient temperature when
the product is suspended with no pressurized air supply.
•
There is no abnormal sound or vibration coming up from the product.
•
There are no abnormal smell or smoke coming up from the product.
4 - 2
Periodical Maintenance
4-2-1
Cleaning of ventilation grille (suction grille)
Clean dust and other foreign particles from the ventilation area with vacuum cleaner or air blow nozzle once a
month.
Danger
During air blowing, put on protective glass and mask to prevent dusts from coming into throat or eyes.
4-2-2
Service parts
It is recommended to replace the following parts regularly.
The interval shown in this operation manual
depend on the operating conditions (ambient temperature, installation environment, etc.), so that they
are for reference.
•
Table 1.
List of parts to be replaced regularly
Description
Recommended replacement interval
Pressure switch
One Million times.
Fan motor
20,000 hours
Magnetic Contactor, Magnetic Switch
One Million times.
*Note
）
If it is mounted by option ”T” (With terminal block for power supply , run , alarm signal and remote
operation) or special order.
4-2-3
Cleaning of Auto Drain Strainer
Remove the dust deposited in the auto drain
strainer
every month. Use neutral detergent for cleaning. If they are
too dirty, replace them and shorten the period of maintenance from next time.
•
Auto Drain Strainer order part number
Part No.
Name
Quantity
Applicable Model
IDF-S0002
Auto Drain Strainer
1
IDU3E, IDU4E, IDU6E
4 - 1
