Rev. 1.00
22585_EDEBD
A0252-0318-1_EN
45
KBR multicomp F144-3 6DO/12DO
Maintenance, security
10 System and safety
device maintenance
In order to ensure that your system functions properly and has a long service
life, perform the following checks after commissioning and then on an annu-
al basis.
Check and re-tighten all connections. Screw connections may become loose
at the beginning due to thermal stress.
Check fuses, safety devices and switching equipment. Contactors are wearing
parts. If the contactor is intact, switching must take place without excessive
sparking.
Check the control performance in automatic mode.
Check the cooling air setting (fans, temperature monitoring function):
Check that the controller temperature relay switches the fans on at 28 °C.
Check that the temperature monitoring switches the system off via controller
at 48 °C.
Clean the fi lter mats if necessary, depending on how dirty they are.
Perform a visual inspection of the capacitors.
Examine the current input and capacitor terminal voltage once every three
months.
Check the reactive energy consumption on the basis of the electricity bill.
NOTE
The current consumption and the temperature of these systems must be
checked regularly so that overloading of the capacitors can be detected at
an early stage. Excessive current consumption can be caused by an increas-
ing proportion of harmonics or by faulty capacitors.