Kair
VENTILATION LIMITED
TM
iECO 4
powered by itho
User Manual
Safety
Do not place objects on top of the appliance.
Do not use this appliance for functions other
than those described in the booklet
After removing the appliance from its
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undamaged. If in doubt contact Kair
Ventilation Ltd. Do not leave the packaging
within reach of children or the inrm.
Certain fundamental rules must be observed
when using any electrical appliance, including
a) never touch appliances with wet or damp
hands;
b) never touch appliances while barefoot;
c) do not allow children to use the appliance
without supervision; d)supervise inrm pers-
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Store the appliance out of the reach of child-
ren and inrm persons if you decide to dis-
Regularly inspect the appliance for visible
defects. If any faults are found, contact Kair
Ventilation Ltd. immediately.
The appliance must only be installed by a
professionally qualied person.
Ensure that the electrical system to which
the appliance is connected complies with
applicable standards.
Use a multi-polar switch with a minimum
contact gap of 3 mm to install the appliance.
Switch of the appliance at the main switch:
a) if the appliance does not function correctly;
b) before cleaning the outside of the
appliance;
c) if the appliance is not to be used for any
length of time.
Be careful to avoid damaging the electric
connect it from the power supply and no
longer use it
Do not operate the appliance in the presen-
ce of inammable substances or vapours
(alcohols, insecticides, petrol, etc).
The following general instructions are important:
Follow the safety instructions to prevent fan
damage and personal injuries.
Maintenance instructions must be followed
to prevent damage and/or excessive wear
and tear.
The specications in this manual may not be
modied.
The fans may not be modied.
circuit.
Do not use the appliance to control activa-
tion of water heaters, room heaters etc., nor
should it discharge into the ues of any such
appliances.
Ensure that the appliance discharges into a
single duct (dedicated to this product) which
is routed to the outside.
The air to be extracted from the dwelling
must be clean (i.e. free of grease, soot, che-
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ammable mixtures).
Keep the appliance intake and outlet grilles
free to ensure optimum airow at all times.
The motor module is only suitable for a
230 V 50 Hz a.c system.
Do not expose the appliance to the weather
(rain, sun, etc).
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Safety
!
The HRU ECO 4 contains parts which may be live.
Consult a professionally qualied installer in
the event of an alleged fault. All repairs and
maintenance work should be carried out by a
professionally qualied installer.
The ventilation unit should be inspected
regularly for contamination. Electrically discharge
the unit before carrying out any work on it.
First isolate the unit from the mains supply and
make sure that the unit is not re-connected to
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by yourself or anyone else before you have
completed the work.
The valves should always be placed back in their
original loca tions. Do not turn the valve during
the cleaning process; or make sure to mark the
setting before cleaning the valve. If the valves
are switched or set dierently, the ventilation
volumes will no longer be correct and the
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bathroom may then remain humid for too long,
your toilet may be very cool or your kitchen may
smell mouldy.
Kair iECO 4
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seconds after disconnecting the unit from the
supply. For this reason wait at least 10 seconds
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unit. The fan will not be moving after these
10 seconds have elapsed.
The valves and grilles in your home should also
be cleaned r egularly. These can be removed from
the wall or ceiling. Beware of protruding duct
sections. These can be very sharp.
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Table of Contents
1. Why use balanced ventilation? 4
2. The correct use of your ventilation
system 5
3. Operation of the balanced
ventilation system 6
4. Bypass and frost protection 7
5. Grilles 8
6. System control 9
7. Maintenance 11
8. Warranty conditions 13
9. Manufacturer’s statement 15
10. EU Declaration of Conformity 16
11. Troubleshooting 17
Subject to changes without notice. No rights can be derived from
this user manual.
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1
Why use balanced ventilation?
Ventilation is necessary
In the past people built houses which were not
air-tight, which leaked air, for example, at the
connection point of the wall and the floor or roof.
Cracks were always visible around windows and
doors. All these openings ensured that large
volumes of air moved in and out of the buildings.
When the wind was blowing the complete air
content of the home was refreshed three to four
times an hour. This ensured very good ventilation
of the home, but a lot of energy was lost.
Construction methods have changed. Floors,
walls and roofs are, when possible, constructed
with a layer of insulation. The insulation ensures
that there are nearly no cracks and the air tightnes s is increased. It is a misconception to
carpets, parquet, newspapers and cigarettes,
contain substances that harm the health of the
residents. All the moisture such as water vapour
and aromatic substances should be removed
from the homes.
think that there is still enough ventilation in a
home without some type of ventilation system.
Ventilation is absolutely necessary in an air-tight
home to prevent problems related to humidity,
mould and the health of the residents.
Moisture content of the home
Incorrect use of the ventilation system by the
r
esident in combination with today’s well insulated homes gives humidity an open field.
The moisture content in the homes increases and
can cause health, humidity and mould problems.
A family of four persons produces 14 to 20 litres
of moisture per day just by breathing, sleeping,
cooking, washing, dishwashing, bathing, watering plants, etc. Many products, such as textile,
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