Re: [TRNSYS-users] type 665 problem / type 56 output question

[David Bradley <bradley@tess-inc.com>]

Dear Guido,

> i am using several type 665
> (split system heatpump) in a multizone building.
> Using just one works fine, but adding more for conditioning other zones
> result in unrealistic energy inputs, though temperatures are right.
> Why is that? Does somebody know how to handle?

  Please contact your distributor regarding the unexpected results
from Type665. They may need you to send them your project files in order
to determine what is going on.

> second part is:
> What the difference between the zone outputs TAIR,TSTAR and TOP? All
> giving the same results to me.

  TAIR is the temperature of a zone air node. TOP is the operative
zone temperature and is an average of the air node temperature, the
inside wall surface temperatures. I do not know the exact formula and I
do not know if TSTAR is also included. TSTAR is the star network
temperature - the temperature of the air node for radiation exchange
calculations.

Kind regards,
  david

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