Sun Microsystems SPARC Series, Service Manual

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Appendix C FRU List C-7
For the replacement procedure, see Chapter 12 .
C.5 Fan Unit
The fan units generate an airflow between the inside and outside of the server. If an
error occurs in one fan unit, the XSCF detects the error and the normally operating
fan unit starts rotating at a higher speed to cool the server. The M3000 server uses
the fan units (FAN_A) as its main cooling system.
TABLE C-8
shows the fan unit
specifications.
Power consumption 470 W (AC 100 to 120 V)
460 W (AC 200 to 240 V)
Apparent power 480 VA (AC 100 to 120 V)
517 VA (AC 200 to 240 V)
Maximum heat dissipation 1,603.7 BTU/hr 1,692 kJ/hr (AC100 to 120V)
1,569.6 BTU/hr 1,656 kJ/hr (AC200 to 240V)
Power factor 0.98 (AC 100 to 120 V for the maximum
configuration)
0.89 (AC 200 to 240 V for the maximum
configuration)
Active replacement Yes
Hot replacement Yes
Cold replacement Yes
* In the redundant configuration, the rated current supplied for each power cord is half of
the value listed in
TABLE C-7
.
TABLE C-8
Fan Unit Specifications
Item Description
Number of fan units 2
Redundancy 2 units (1 + 1 redundant configuration)
Location Front of the server
TABLE C-7
Power Supply Unit Specifications (Continued)
Item Specifications