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DIGITAL INPUTS
COM: terminal shared by all inlets;
DI01: season, 1 = summer, 0 = winter, when the season is set through a digital input
instead of a key pad;
DI02: room fan activation input; this is not an operational mode but enables to
keep the room air flowing;
DI03: exchange input
DI04: dehumidification input;
DI05: cooling input in SUMMER o heating in WINTER;
DI06: exchange stop, it enables to stop an exchange set or programmed, e.g. with DI03 or time
slots. This inlet, when connected through DI03 to a 3-position selector, type 0-1-2, provides 3
options: exchange ON, exchange OFF, AUTOMATIC exchange through time slots.
DI08: flow rate attenuation input.
OPERATIONAL MODES
Note: The operational modes for KDVRWY300 depend on the external accessories that have
been assembled.
Exchange
: Air exchange with the corresponding flow rate, using the heat recuperator;
Cooling
: Displayed when summer is selected; the dehumidification cooling compressor is turned
ON and the delivery temperature will be the one provided for the cooling (or integration) settings.
Heating
: Displayed instead of cooling when winter is selected; the delivery temperature, obtained
through the water-supplied coil, is the one provided for winter integration.
Note: An external setting valve (optional) must be included to add integration to the KDVRWY300
unit.
Dehumidification
: The dehumidification cooling compressor is turned ON and the delivery
temperature will be the one provided for operation with neutral air;
Attenuation
: The unit works
with the attenuation flow rates which are set by default on values lower than normal operation to
reduce aeraulic noise. This function is convenient if the user wants the unit to work during resting
times
