Helios EC green Vent KWL EC 200 Pro L, Installation And Operating Instructions Manual

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Service und Information
D HELIOS Ventilatoren GmbH + Co KG · Lupfenstraße 8 · 78056 VS-Schwenningen F HELIOS Ventilateurs · Le Carré des Aviteurs · 157 av. Charles Floquet · 93155 Le Blanc Mesnil Cedex
CH HELIOS Ventilatoren AG · Steinackerstraße 36 · 8902 Urdorf GB HELIOS Ventilation Systems Ltd. · 5 Crown Gate · Wyncolls Road · Severalls Industrial Park ·
A HELIOS Ventilatoren · Postfach 854 · Siemensstraße 15 · 6023 Innsbruck Colchester · Essex · CO4 9HZ
SYMPTOM CAUSE METHODE/DO THIS
"Carbon dioxide alarm!!" message
is displayed and the unit is stopped
• CO
2
alarm. Carbon dioxide content has excee­
ded 5000 ppm for more than two minutes.
This may be because of a fire, for instance.
• If there is a fire, take the necessary steps.
• The unit can be brought back to operation by removing the plug from
the wall outlet, waiting for 30 seconds and putting the plug back.
10
The desired automatic adjustment
does not stay activated.
• There is a fault in the humidity sensor, pressure
sensor or CO
2
sensor; one of the sensors is bro­
ken or missing.
11
• Contact a service representative. The mounting and couplings of the
sensors have to be checked. (The sensors are optional.)
The unit is deaf, the fans do not
rotate, and none of the indicator
lamps of the control panel is lit.
• The door switch may be broken or has not
closed properly.
• The socket is dead; the fuse may have
burned out, for instance.
• The glass tube fuse protecting the internal
electronics of the unit (located on the control
board behind the protective plate) may have
burned out.
12
• Check the door switch and the fuses. The unit has a glass tube fuse,
T800mA.
• If needed, contact a service representative (in order to check the glass
tube fuse, for instance).
The unit does not obey the control
panel.
13
• Remove the plug from the wall outlet, wait for 30 seconds and put it
back. If this does not help, contact a service representative.
The maintenance reminder symbol
( ) is displayed and the unit
operates otherwise normally
• The maintenance reminder lights up the mainte­
nance reminder symbol in the main display of
the control panel at an interval of approximately
4 months (factory setting).
• You may change the interval (see the instructions
for using the control panel, Section 1.3.21.).
4
• Check the cleanliness of the filters and the unit, and clean or replace
the filters, if needed.
• Acknowledge the maintenance reminder symbol to make it disap­
pear. (see the instructions for using the control panel, Section
1.3.10.).
The supply air fan stops and starts
too frequently.
• The difference between the stopping and starting
temperatures is too small.
3
• Increase the difference by 1 or 2 °C, thereby lengthening the interval
between the stopping and starting of the supply air fan.
(See the instructions for using the control panel, Section 1.3.22).
The supply air fan keeps stopping. • Stopping of the supply air fan is active.
NOTE! If you decrease the threshold by too much,
the cell may freeze. See item 1 on this page.
2 • The fan stops less often and the efficiency of the heat recovery cell
isenhanced, if the setpoint is decreased by 1 or 2 °C. (See the
instructions for using the control panel, Section 1.3.23.).
Outdoor air is cool when ente­
ring the house.
• Air cools down in the attic ducts.
• The heat recovery cell has frozen, and extract air
cannot heat outdoor air.
• The extract air filter or the cell is clogged.
• The initial adjustments for ventilation have not been
made.
• Sensor broken.
1
• Check the insulation of the attic ducts.
• If the heat recovery cell has frozen, check the defrosting protection
setpoint. You may increase the setpoint by 1 or 2 °C, or you can bend
the sensor closer to the cell, which causes the supply air fan to stop
earlier (see the instructions for using the control panel, Section 1.3.20).
Defrost the cell before closing the door.
• Check the cleanliness of the filters and the heat recovery cell.
"Bus fault" message is displayed
and unit runs at fan speed 1.
(check ventilation level)
• There is a wiring fault in the CO
2
sensor, or in
the control panel.
9 • Contact a service representative. The sensor mounting has to be
checked, and the sensor has to be replaced, if necessary.
OPERATION FAILURES / ALARMS
Druckschrift Nr
. 86598.002/10.12
"Exhaust air sensor fault" message is
displayed and the unit is stopped
• There is a fault in the exaust air sensor.
5
• Contact a service representative. The sensor mounting has to be
checked, and the sensor has to be replaced, if necessary.
"Supply air sensor fault" message is
displayed and the unit is stopped
• There is a fault in the supply air sensor. 6 • Contact a service representative. The sensor mounting has to be
checked, and the sensor has to be replaced, if necessary.
"Extract air sensor fault" message is
displayed and the unit is stopped
• There is a fault in the extract air sensor.
7
• Contact a service representative. The sensor mounting has to be
checked, and the sensor has to be replaced, if necessary.
"Outdoor air sensor fault" message is
displayed and the unit is stopped
• There is a fault in the outdoor air sensor.
8
• Contact a service representative. The sensor mounting has to be
checked, and the sensor has to be replaced, if necessary.