Proface PS4800 - 19 Panel PC" - Manual (Page 107)

Hardware Modifications
107
Fan Kit Installation
Overview
The fan kit (see page 135) is used in two purposes:
z for flat mounting of fanless PS-B or,
z replacement of PS-B with fan.
Before installing or replacing the fan kit remove all power from the device.
Installing the Fan Kit
The table below shows how to install the fan kit:
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
z Remove all power from the device before removing any covers or elements of
the system, and prior to installing or removing any accessories, hardware, or
cables.
z Unplug the power cable from both the PS-B and the power supply.
z Always use a properly rated voltage sensing device to confirm power is off.
z Replace and secure all covers or elements of the system before applying power
to the unit.
z Use only 24 Vdc when operating the PS-B.
Failure to follow these instructions will result in death or serious injury.
NOTICE
ELECTROSTATIC DISCHARGE
Take the necessary protective measures against electrostatic discharge before
attempting to remove the PS-B unit cover.
Failure to follow these instructions can result in equipment damage.
Step Action
1 Disconnect the power cord to the PS-B unit.
2 Touch the housing or ground connection (not the power supply) to discharge
any electrostatic charge from your body.