More confusion

[Chester Alderman]

I received my K3 (s/n 4521) in early August 2010 and I have never seen the
two fans on the rear turning. My typical FP temp was pretty steady at 37C;
my typical PA temp was pretty steady at 33C. Note, I seldom run my K3 over
about 30 watts output because it is driving an amp. In looking at page 56 of
my manual (Rev D7) I see in the description of KP3A-F "PA fan test settings
(PA FN1-FN4 or PAIO FN1-FN4), and ..."
I have assumed operation of the two fans are thermostatically controlled?
Can someone please explain the meaning of 'PA FN1-FN4' and 'PAIO FN1-FN4' ?
I have no clue what that means! I now have KPA3 set for Fn2 and both fans
are running and the FP temp is reading 33C while the PA temp is now reading
27C.
Somewhere in the manual I'm sure this must be explained to the user, but I
can't find it.
Thanks for any help.
Tom - W4BQF



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[Joe Planisky]

Hi Tom,

As you assumed, the fans are thermostatically controlled.  They don't turn on until the PA temperature reaches 34 degrees.  The "fan test settings" are just what they say: settings to test that the fans actually work by manually turning them on.  Normal operation is with the KPA3 parameter set to PA NOR.

You may want to do the PA Temperature Sensor calibration as described in the manual (page 51 in the older D5 manual, should be close to that page in the newest manuals.)

73
--
Joe KB8AP


On Jan 19, 2011, at 3:51 PM, Tommy Alderman wrote:

> I received my K3 (s/n 4521) in early August 2010 and I have never seen the
> two fans on the rear turning. My typical FP temp was pretty steady at 37C;
> my typical PA temp was pretty steady at 33C. Note, I seldom run my K3 over
> about 30 watts output because it is driving an amp. In looking at page 56 of
> my manual (Rev D7) I see in the description of KP3A-F "PA fan test settings
> (PA FN1-FN4 or PAIO FN1-FN4), and ..."
> I have assumed operation of the two fans are thermostatically controlled?
> Can someone please explain the meaning of 'PA FN1-FN4' and 'PAIO FN1-FN4' ?
> I have no clue what that means! I now have KPA3 set for Fn2 and both fans
> are running and the FP temp is reading 33C while the PA temp is now reading
> 27C.
> Somewhere in the manual I'm sure this must be explained to the user, but I
> can't find it.
> Thanks for any help.
> Tom - W4BQF

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[Joe Planisky]

OOPS.  My mistake.  The fans turn on at 37C and turn off at 34C.

73
--
Joe KB8AP

On Jan 19, 2011, at 4:26 PM, Joe Planisky wrote:

> Hi Tom,
>
> As you assumed, the fans are thermostatically controlled.  They don't turn on until the PA temperature reaches 34 degrees.  The "fan test settings" are just what they say: settings to test that the fans actually work by manually turning them on.  Normal operation is with the KPA3 parameter set to PA NOR.
>
> You may want to do the PA Temperature Sensor calibration as described in the manual (page 51 in the older D5 manual, should be close to that page in the newest manuals.)
>
> 73
> --
> Joe KB8AP
>
>
> On Jan 19, 2011, at 3:51 PM, Tommy Alderman wrote:
>
>> I received my K3 (s/n 4521) in early August 2010 and I have never seen the
>> two fans on the rear turning. My typical FP temp was pretty steady at 37C;
>> my typical PA temp was pretty steady at 33C. Note, I seldom run my K3 over
>> about 30 watts output because it is driving an amp. In looking at page 56 of
>> my manual (Rev D7) I see in the description of KP3A-F "PA fan test settings
>> (PA FN1-FN4 or PAIO FN1-FN4), and ..."
>> I have assumed operation of the two fans are thermostatically controlled?
>> Can someone please explain the meaning of 'PA FN1-FN4' and 'PAIO FN1-FN4' ?
>> I have no clue what that means! I now have KPA3 set for Fn2 and both fans
>> are running and the FP temp is reading 33C while the PA temp is now reading
>> 27C.
>> Somewhere in the manual I'm sure this must be explained to the user, but I
>> can't find it.
>> Thanks for any help.
>> Tom - W4BQF

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