Ventilation Fan Module-Choke - Delta PCS100 Maintenance Manual

Ventilation Fan Module-Choke

WARNING!
!
Read the "Safety Instructions" on page ix on the first at the beginning of this manual before
performing any service on the components. Ignoring safety instructions may result in injury,
damage or death.
CAUTION!
!
D
ANGEROUS VOLTAGE LEVELS MAY BE PRESENT FOLLOWING DISCONNECTION
CABINET UNTIL A REASONABLE PERIOD OF TIME HAS ELAPSED
D ,
EATH SERIOUS INJURY
Important Safety Instructions
It is important to remember that the PCS100 is designed to supply power even when it is disconnected
from the power grid. The interior of the PCS100 is unsafe until the DC power source is disconnected
and the AC/DC inputs are disengaged. It is recommended to wait a period of at least five minutes for
capacitor bleed-off before attempting to service any components.
Note:
 Maintenance should only be performed by qualified personnel.
 Lethal voltage is present in the PCS100. The unit must not be operated with the front
door doors open. At no time should you make any assumptions of the electrical state of
the PCS100.
Before attempting any work around the PCS100, observe the following precautions:
 Remove any watches, rings, or other metallic accessories.
 Only use tools with insulated handles.
 Wear rubber gloves and boots.
 Do not lay tools or metal parts on top of the cabinet.
Removing a Choker Fan Module
1. Open the rear door. See "Opening a Rear Door" on page 25.
2. Disconnect the cables from the choker fan module.
Maintenance Manual
,
OR HARDWARE DAMAGE CAN RESULT IF CAUTION IS NOT TAKEN
Figure 244. Disconnecting the Cables
162
Maintenance
. D
O NOT OPEN THE
.
.