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Dear
Stergiou,
here is a short abstract
from the manual how T_COOL_ON is defined and why:
"
For the definition of the set temperature of the room air there
are four options:
- A constant set temperature of the
air
- According to DIN 1946 a floating set
temperature based on ambient temperature, upper limit
- According to DIN 1946 a floating set
temperature based on ambient temperature (lower limit)
- A user defined time-depended set value
(time schedule)
Note: DIN 1946 refers to
operative temperature which is not identical to the room air temperature.
TRNSYSlite enables an control strategy based on room air temperature. In
most cases in summer the air temperature is higher than the operative
temperature because of the radiative temperature of inside surfaces of the room
which has to be considered.
"
For your problem
with the schedule you should define a dead band of at least 1 K for heating and
cooling, this could probably help you.
With kind
regards
Christian
Frenzel
Hallo,
I would like to have some
information about the equation given by the wizard in order to set
the cooling system on depending on the ambient temperature. The equation given
is: T_COOL_ON = MAX(MIN(27,(Input1/3+49/3)),25), where input1 is the
ambient temperature.
My question is what (Tamb+49)/3 represents and where
this value is based on.
I am trying to simulate an office building and
i don't want the cooling system working during the night and during the
weekends. Can you suggest me any way to achieve that?
Thanks in advance,
Stergiou Christos
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