Alpha Technologies CXPS 48-1.2-225 48 Vdc - Manual (Page 39)

053-691-B1 Rev E Page 31 of 33
8 Maintenance
This equipment requires regular maintenance. The maintenance must be done by qualified service personnel
only.
WARNING: HIGH VOLTAGE AND SHOCK HAZARD Use extreme care when working inside the
enclosure/shelf while the system is energized. Do not make contact with live components or parts.
Static electricity may damage circuit boards, including RAM chips. Always wear a grounded wrist
strap when handling or installing circuit boards. Ensure redundant modules or batteries are used to
eliminate the threat of service interruptions while performing maintenance on the system’s alarms
and control settings.
8.1 General maintenance schedule
Description Interval
Clean ventilation openings 1-6 months
Inspect all cable connections, re-torque if necessary 1 year
Verify alarm/control settings
1 year
Verify alarm relay operation 1 year
8.2 Fan replacement
1. Shut off the unit and unlock the power module.
2. Slide the module 10 cm (4") out of the shelf and wait two minutes for the module capacitors to discharge.
3. Remove the bottom screw that secures the front panel to the module chassis.
4. Slide out the front panel.
5. Disconnect the fan power wires from the module.
6. Note the direction of the airflow and remove the fan from the front panel.
7. Install the replacement fan following the preceding steps in reverse order.