KLIC-DI VRV
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Technical Support:
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9
Setpoint restriction
: temperature setpoints of variable refrigerant volume air
conditioning systems are typically limited to the range 16-32ºC (please refer
to the user manual of the actual unit). This function of the KLIC-DI device
allows configuring custom temperature ranges in ETS for the Heat and Cool
modes, provided that the custom values stay within the original range. In case
of receiving a temperature command from the KNX bus with a value
exceeding the configured range, the temperature value sent by KLIC-DI to the
machine will be the corresponding limit value.
Internal temperature
and
Reference temperature
: variable refrigerant
volume A/C units incorporate several sensors for measuring the temperature
at different internal points. KLIC-DI monitors one of them, referred to as
internal temperature
, and makes use of it to inform the KNX bus through the
“
Internal Temperature (status)
” communication object.
On the other hand,
through the “
Reference Temperature
” object, KLIC-DI is
able to receive periodical temperature values from the KNX bus, as measured
by an external sensor. These values will be afterwards sent to the air-
conditioner machine, which may eventually use them for internal calculation.
This reference temperature object just works when KLIC-DI is master and
assigns a default value of 25ºC.
Error management
: allows sending messages to the KNX bus informing
about errors. Error management handles both external errors from the A/C
unit itself and those that may arise in the KLIC-DI
– A/C unit communication
process.
Apart from reporting external errors, a numerical code associated with them
is also provided and must be consulted in the specific user manual of the
installed air-conditioning system, according to ANNEX II: Correspondence
with A/C unit error codes.
Initial configuration
: allows establishing the desired initial parameters for the
state of the A/C unit after downloading or restarting the device from ETS, or
after recovering from a bus failure. The following may be configured: ON/OFF
state, temperature, mode, fan and swing of the machine. It is also possible to
send the initial values to the KNX bus after the start-up.
