User's Manual Part 3

Heat Management System – continued
9-76 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004
PRELIMINARY
Contact the OMC–R operator before performing the replacement
procedure. Tell the operator that the HMS or its components will be
replaced and that alarms can be expected.
Upon completion of the replacement procedure, have the OMC–R
operator verify that old alarms are cleared and that no new ones are
reported.
Figure 9-29:Heat Management System
ti–cdma–wp–00337–v01–ildoc–ah
Blower
(Behind Louvers)
HMS
Controller
Heater
Elements
Replacement Procedure
If desired, record the TME and HMS serial number of the failed unit in
Table 9-69 at the end of this chapter.
Remove HMS
Follow the procedure in Table 9-43 to remove the HMS. See
Figure 9-29.
9