KNK
Logical
Interface
for
Climate
ZN1CL
–
KLIC
‐
DI
Technical
Note:
Installation
Note
© Zennio Avance y Tecnología S.L. Edition 5 For further information
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Page.
4
of
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CENTRAL CONTROL OF AC UNITS
KLIC-DI cannot be used in AC systems with any controller other than the wired/wireless remote controller, such as AC
central controllers connected to F1/F2 bus.
AIR TEMPERATURE REGULATION – AC UNIT FUNCTIONING
Air conditioning units carry out a regulation of the airflow temperature according with the setpoint temperature they
receive and a reference temperature, which is measured by a temperature probe in the air conditioning system. In AC
systems, this reference temperature is provided by
the indoor unit internal temperature probe
, the
wired remote
temperature probe
or
a temperature probe connected to the indoor unit
(placed in the room).
Thanks to
KLIC-DI,
a
temperature that is received from KNX bus
can be used
as reference temperature instead of
the wired remote controller temperature probe. The installer must select the wired remote controller as reference
temperature and KLIC-DI as master.
Thus, the possible reference temperatures for regulation of airflow temperature are:
In any of the cases above there are some
temperature ranges
that establish whether the temperature probe of the
indoor unit or one of the other external temperatures are used. These ranges depend on the difference between
setpoint temperature and the temperature measured by the indoor unit probe, as well as the indoor unit working mode
(heating/cooling):
Indoor unit cooling
When the
real temperature is lower than setpoint and rises above it
(due to an external process of heating),
reference temperature is:
-
Indoor unit temperature probe, UP TO 1ºC below the setpoint.
-
External temperature probe, in a range BETWEEN 1ºC below and 3ºC above the setpoint.
-
Indoor unit temperature probe, FROM 3ºC above the setpoint.
When the
real temperature is higher than setpoint and drops below it
, reference temperature is:
-
Indoor unit temperature probe, UP TO 1ºC above the setpoint.
-
External temperature probe, in a range BETWEEN 1ºC above and 3ºC below the setpoint.
-
Indoor unit temperature probe, FROM 3ºC below the setpoint.
Indoor unit heating
(air in the room is usually cooler than the one that is pumped by the indoor unit)
When the
real temperature is below the setpoint and it rises above it
reference temperature is:
-
Indoor unit temperature probe, UP TO 1ºC above the setpoint.
-
External temperature probe, FROM 1ºC above the setpoint.
When the
real temperature is above the setpoint and it drops below it
(due to an external process of cooling),
reference temperature is:
-
External temperature probe, UP TO 1ºC below the setpoint.
-
Indoor unit temperature probe, FROM 1ºC below the setpoint.
Indoor Unit
Wired remote
controller
Temperature probe
connected to Indoor unit
KLIC-DI – KNX
Temperature Probe
