Alpha Technologies Cordex 48-1.2kW - Manual (Page 38)

030-834-J0 Rev A Page 32 of 34
8 Maintenance
Although very little maintenance is required with Alpha systems, routine checks and adjustments are
recommended to ensure optimum system performance. Qualified service personnel should do repairs.
The following table lists a few maintenance procedures for this system. These procedures should be
performed at least once a year.
WARNING: HIGH VOLTAGE AND SHOCK HAZARD.
Use extreme care when working inside the shelf while the system is energized.
Do not make contact with live components or parts.
Circuit cards, including RAM chips, can be damaged by static electricity. Always wear a grounded
wrist strap when handling or installing circuit cards.
Procedure Date Completed
Clean ventilation openings
Inspect all system connections (re-torque as necessary)
Verify alarm/control settings
Verify alarm relay operation
Table F–Sample maintenance log
8.1 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 module capacitors to discharge.
3. Remove the bottom screw that secures the front panel to the module chassis.
4. Slide the front panel out.
5. Disconnect the fan power lead wires from the module.
6. Note the direction of airflow and remove the fan from the front panel.
7. Install the replacement fan following the preceding steps in reverse order.