PD00E0XKNXFI00020100_HANDBOOK_EN.DOCX
PD00E0xKNX KNX PRESENCE DETECTORS RANGE Handbook
Eelectron SpA, Via Monteverdi 6,
I-20025 Legnano (MI), Italia
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CCIAA Milano 148549
Manage valve independently
In Fan coil on / off mode it is possible to have the
opening or closing of the valve independent from
switching on or off the speeds by setting the
parameter "manage valve independently". This
makes valve adjustment differentials visible and can
be set different from those set for speeds. The valve
can therefore be kept open even when the fans are
stopped.
The shaded area represents the temperature range
defined by the "heating control differential ON"
parameter in case of increasing temperature.
When the temperature decreases, the "heating
control differential ON" parameter defines the valve
hysteresis.
Fan coil control PI
Logic and parameters are the same used in On/off
with PWM control mode; the difference is that now
the proportional value is sent to the bus via a 1 byte
object format as a % value from 0% to 100%.
This mode is useful to control fan coils (selecting 2
or 4 pipes) or generic proportional actuators as
valve drivers only linking the 1 byte communication
object and avoiding to link the valve objects.
CONTINUOUS CONTROL object
This 1 Byte object send % control value to actuator.
Additional valve
In fan coil mode it is possible, in 4 pipes
systems to enable an additional valve object.
This object is used when the thermostat has to
manage 2 different system , one in heating and one
in cooling .
Suppose to have a system when floor heating is
required in heating mode and a 3 speed fan coil
system is required in cooling mode.
To manage this system it is necessary to :
Set par
OFF control>Enable
=cooling
OFF control > System
= 4 pipes
according to your system request.