Artesyn AXP1440, Installation And Use Manual, Page: 27 / 156

Safety Notes
AXP1440 Installation and Use (6806800H23U) 25
To ensure proper air flow within the system make sure that all slots are populated with either
filler blades, blades or dummy blades.
Product Damage
High humidity and condensation on blade surfaces causes short circuits.
Do not operate the system outside the specified environmental limits. Make sure the system is
completely dry and there is no moisture on any surface before applying power. Do not start the
system below 0ºC.
Injury
Caution: this unit has four -48V to -60V DC feeds. All must be disconnected to de-energize the
system. To reduce the risk of injury, disconnect the feeds when removing power from the
system.
System Damage
Air Filter
Air contamination can pollute the air filter and obstruct the air intake of the system which may
cause system overheating and component damage.
To guarantee proper airflow through the system, the air filter has to be replaced at least every
six months. Artesyn recommends to replace the air filter every 90 days. Filter replacement
frequency depends on the environment the system is subjected to.
Because central offices vary in physical location and cleanliness, check your air filters every
week after you first install your system. In a dusty environment, a filter may need cleaning more
often than a filter in a cleaner environment. Check the filters frequently until you have a good
idea of how often it needs cleaning. Based on your findings, establish a regular cleaning
schedule and keep a log to record the date of each filter cleaning or replacement.
This equipment is designed to permit the connection of the earthed conductor of the DC
supply circuit to the earthing conductor at the equipment. If this connection is made, all of the
following conditions must be met:
This equipment shall be connected directly to the DC supply system earthing electrode
conductor or to a bonding jumper from an earthing terminal bar or bus to which the DC supply
system earthing electrode conductor is connected.