Bird Technologies BA-310 Series - Manual (Page 11)

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Chapter 1 Introduction
Bird Blower Assemblies supply forced air cooling to Bird Loads,
including Termaline 8890 Series terminations and Tenuline 8329
Series attenuators.
The Bird BA–300 consists of two high efficiency fans, with vertical
side baffles to direct air over the load’s radiator fins. The blower
doubles the normal RF input rating of the installed load, e.g. a 2.5 kW
load can dissipate 5 kW.
The Bird BA–310 is identical to the BA–300 except that it has a
thermoswitch wired in parallel with the power switch. When a load
equipped with a fan-control thermoswitch is properly connected, the
blower will automatically turn on in response to a rise in load
temperature. This system provides automatic operation suitable for
reject load service.
Items Furnished
y Blower Assembly
y Detachable 3-wire power cable (without male plug for 230 Vac
power cable)
y Nuts and screws
y Load resistor mounted in place (when ordered with a load)
y Instruction manual (when ordered without a load)
Items Required but
Not Supplied
y Male plug for the power cable (230 Vac only)
Optional
Accessories
y Control thermoswitch (BA–310 only)