Vortice VORT PROMETEO PLUS HR 400 Instruction Booklet Download

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air extracted from the house continues to pass through
the exchanger.
In the appliance the by-pass valve opening can take
place in two ways:

Manual

, by pressing the MODE / SUMMER button on

the remote control;

Automatic

, when the appliance operates in AUTO

mode. In this second case, the valve opens by way of
Text > 15°C if one of the following conditions applies:

• if Tint > Tset: Text ≤ Tint

• if Tint ≤ Tset: Text > Tint

(Tset = temperature previously set using the remote

control)

The by-pass valve closes automatically in the other
cases.

Frost protection

: The appliance is ﬁtted with an

automatic valve system that allows cold air from outside
to  mix  with  warm  air  in  the  room  where  the  unit  is
installed.
The  combined  action  of  this  valve  and  the  automatic
adjustment  of  the  airﬂows  extracted  from  and  entering
the  rooms  prevents  the  formation  of  frost  on  the  heat
exchanger; this device consists of a valve which allows
the incoming cold air to mix with the warmer air from the
room in which the appliance is installed.
The  frost  protection  procedure  on  the  appliance  works
as follows:
the  valve  begins  to  open  automatically;  at  the  same
time,  the  air  intake  fan  increases  in  speed  so  as  to
increase airﬂow.
If  this  action  is  insufﬁcient,  the  outside  air  intake  fan
speed  is  reduced,  to  mimimise  the  amount  of  heat
needed to heat it up.
If even this action is insufﬁcient, the extractor fan for the
warm air from inside increases its speed, to increase the
heat contribution available, while the intake fan remains
at minimum speed.
Lastly, if even this measure should be insufﬁcient when
faced with particularly bad external climate conditions,
in  the  absence  of  an  optional  heating  element,  the  air
intake  fan  stops  completely  and  the  valve  is  closed,
while the stale air extractor fan continues operating.
After  a  certain  period  of  time,  the  air  intake  fan  starts
again  at  minimum  speed,  the  valve  re-opens  and  the
external  conditions  are  checked  again;  if  in  the
meantime  the  temperature  exceeds  the  threshold  limit,
the actions described above take place in reverse order.
If  atmospheric  conditions  in  the  room  are  beyond  the
potential of the above-mentioned system, the (optional)
heating element situated upstream of the heat recovery
unit  in  the  fresh  air  duct  automatically  cuts  in  for  the
precise time dictated by the appliance and thus ensures
that the aim is achieved.
N.B.
The  frost  protection  switching  on  prevents  any  change
to the status of the appliance. Any commands made will
not  be  carried  out  by  the  appliance,  and  the  message
“DEF” will be displayed temporarily.

This will remain on the screen for a few seconds and will
then  disappear  and  reappear  every  15  minutes  for  as
long  as  the  heating  element  is  powered  by  automatic
data updates from the appliance to the remote control.
If a malfunction is detected in the heater, the word “ICE”
will  ﬂash  on  the  remote  control  display  and  will  be
followed  by  a  single  beep.  Carry  out  the  RESET
procedure.  The  heating  element  icon  will  continue  to
ﬂash,  to  indicate  the  heater  fault.  In  this  case,  contact
the Technical Support Centre.
IMPORTANT: make sure that nothing is placed close to
the  anti-frost  valve,  as  this  could  obstruct  its  normal
operation.

Filters

Two  F5  ﬁlters,  placed  inside  the  inlet  and  extraction
channels close to the heat exchanger and accessible by
removing  the  front  panel,  safeguard  it  from  the
impurities contained in the extracted stale air and avoid
the introduction of polluted air into the dwelling served
by the system.
A further optional ﬁlter, of class F7, placed in the internal
duct after the F5 ﬁlter, can provide an additional ﬁltering
capability.
The  state  of  ﬁlter  clogging  is  constantly  monitored  by
the  system,    completely  automatically.  The  need  for
maintenance/replacement is signalled, both visually and
acoustically, on the remote control.

Sensors

The appliance is equipped with three temperature
sensors, one relative humidity sensor, which integrates a
further temperature sensor, and a CO2 sensor. More

speciﬁcally, if the relative humidity, CO2

and

temperature sensors detect values above the threshold
levels, the appliance operation adapts automatically, to
restore normal environmental conditions or at least in
line with those set.

IMPORTANT

Before the appliance will work correctly, the CO2/RH(%)

sensor needs an average of 1 hour for auto-calibration
purposes.

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