M0201AKB_uc
CommScope Era
™
High Power Carrier Access Point Installation Guide — Preliminary
© January 2019 CommScope, Inc.
Page 49
Maintenance
Routine Maintenance of the CAP H
Check the cleanliness of the CAP H—in particular its heat sink / fan(s)—at appropriate intervals depending
on the degree of dust and dirt at the installation site. If necessary, any dusty or dirty areas / parts should be
cleaned at regular intervals, which is also dependent on the degree of dust and dirt at the installation site.
Replacing the Fan Unit
Replacement of the Fan Unit is not required as a preventative measure. you should only replace the fan when
an alarm indicates that the fan is malfunctioning or when to directed to do so by CommScope.
Note, however, should the temperature of a CAP H amplifier reach a certain temperature threshold, it will
reduce output power. If this doesn't help and the temperature continues to rise above 85°C (185°F), the
Power Amplifier (PA) will shut down. Once temperature decreases, the PA will automatically turn back on.
Rotating fans. Risk of injury in operation. Wear tight-fitting clothes and disconnect mains before
connecting or replacing or cleaning the Fan Unit.
The Fan Unit can only be replaced as a whole. Do not remove the fans separately.
All CAP H screws have a right-hand thread. Use an appropriate tool to tighten or loosen them. Turn the
screws clockwise to tighten them and turn them counter-clockwise to loosen them.
Do the following to replace the Fan Unit:
1
Adhere to all cautions and warnings listed in
"Rules to Observe During Maintenance" on page 48
and at
the start of this section.
2
Label any unlabeled cables before disconnecting them to ensure correct reconnection.
3
Disconnect the CAP H from mains power and make sure it is powered down before proceeding.
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