Table of Contents
Advertisement
Appendix D – Periodical maintenance
WARNING HAZARD OF ELECTRICAL SHOCK. DISCONNECT INCOMING POWER
BEFORE WORKING ON THIS CONTROL.
WARNING Be sure to turn on the input power supply only after closing the front case. While
being energized, don´t open the front case. Otherwise, there is a danger of electric
shock.
Once a month, or more frequent, depending on pollution condition
-
check if the fan is freely rotating
-
check that there is no dust on fan. If any, clean it away.
-
pull the cables to check whether the glands firmly hold them; tighten the glands if necessary
-
open the terminal cover and check whether there is any dust or humidity; if any, please replace the sealing on
main plastic cover and terminal cover as well
Appendix D – Periodical maintenance
D-1
Advertisement
Table of Contents
