Bird Technologies 8931-230SC13-Manual - Manual (Page 19)

9
Chapter 4 Operating Instructions
Blower Controls
Bird 8930 Loads are equipped with a control switch and indicator
light on the front of the blower, underneath the RF connector.
The switch is labelled “MANUAL/AUTOMATIC”. When the switch
is set to MANUAL, the fans will run continuously. When set to
AUTOMATIC, the fans will be turned on when the coolant reaches a
preset temperature. The indicator light, labeled “AC ON”, will turn on
whenever the unit is connected to ac power.
Normal Operation
y Check that the indicator light is on.
y Set the switch to MANUAL momentarily to check that the fans
are working properly, then set the switch back to AUTOMATIC.
y Apply RF power.
Operation Under
Abnormal
Conditions
If the indicator light turns off or the fans stop unexpectedly,
immediately turn off RF power or reduce it to less than 2,500 W.
Refer to “Troubleshooting” on page 11 to correct the problem. A
properly connected interlock will prevent overload.
The load can be subjected to higher power levels for short intervals. If
this is likely, make sure the interlock is properly connected to prevent
damage to the load.
CAUTION
Maximum power is 2,500 W when the blower is not running. If the
indicator light should turn off, immediately reduce RF power to less
than 2,500 W.
WARNING
Never attempt to connect or disconnect RF equipment from the
transmission line while RF power is being applied.
Leaking RF energy is a potential health hazard.