User Manual

MCA9129-90-A Installation & Service Manual
Ó Copyright Powerwave Technologies, Inc., July 2001. All rights reserved
044-05060 Rev. C 2-2 July 2001November 2002
Table 2-1 Averaged DC Current Load
Amplifier
Power
No. Of
Amplifiers
3 Sector
Averaged Current
2 Sector
Averaged Current
1 Sector
Averaged Current
100 12 378
100 8 252 288
100 4 126 144 162
100 1 31.5 36 40.5
2-4 Air Conditioning
Each MCA9129-90MCA9129-90-A amplifier generates 3804 BTUs of heat at full power. A fully
populated MCR4109-1 operating at full power will generate 15,217 BTUs of heat. A full three-
sector site employing three fully populated MCR4109-1 subracks will generate 45,652 BTUs of
heat at full power (360W per subrack). A five-ton air conditioner is needed to cool this Powerwave
equipment. A full three-sector site probably needs at least a five-ton air conditioner to cool all of
the site's equipment, based on heat load averaging as described in table 2-2. Since all the ampli-
fiers are not running at full capacity at the same time in normal operation, table 2-2 describes the
heat load for a 3 sector (70%), 2 sector (80%) and omni (90%) site. Perform a site survey to de-
termine actual air conditioning needs.
Table 2-2 Averaged Heat Loading
Amplifier
Power
No. Of
Amplifiers
3 Sector Averaged
BTU's
2 Sector Averaged
BTU's
1 Sector Aver-
aged BTU's
100 12 31,956.8
100 8 21,304.5 24,348.0
100 4 10,652.3 12,174.0 13,695.8
100 1 2,663.1 3,043.5 3,423.9
2-5 Unpacking and Inspection
This equipment has been operated, tested, and calibrated at the factory. Only in the event of se-
vere shocks or other mistreatment should any substantial readjustment be required. Carefully
unpack each piece of equipment after it has reached the installation site and is approximately in
place. Carefully open the several amplifier system containers and remove the subracks, amplifier
modules, input combiners, and miscellaneous interconnect cables and hardware. Retain all
packing material that can be reassembled in the event that the unit must be returned to the fac-
tory.
CAUTION
Exercise care in handling equipment during inspection to pre-
vent damage caused by rough or careless handling.
Visually inspect the cabinet and all modules for damage that may have occurred during shipment.
Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or extrane-
ous packing material in the connectors or fans. Inspect male connectors on modules and har-
nesses for bent connector pins. If the equipment is damaged, a claim should be filed with the car-
rier once the extent of any damage is assessed. We cannot stress too strongly the importance of
IMMEDIATE careful inspection of the equipment and the subsequent IMMEDIATE filing of the
necessary claims against the carrier if necessary. If possible, inspect the equipment in the pres-
ence of the delivery person. If the equipment is damaged, the carrier is your first area of re-
course. If the equipment is damaged and must be returned to the factory, write or phone for a
return authorization. Powerwave may not accept returns without a return authorization. Claims