KDK E50DZUA, Operation Instructions Manual

Page: 6 / 40

6
Operation Instruction
FEATURES
1. Energy saving ventilation Thanks to ef fi cient recovery of the thermal energy lost during
ventilation (fresh air load), you can save the air-conditioning fee.
2. Facility saving Thanks to a great reduction of fresh air load, part of the thermal energy
is recovered so that the airconditioning can become mini-type properly.
3. Humidity function When cooling, reduce the outdoor air humidity to make the incoming
air humidity close to the indoor humidity.
4. Comfortable ventilation Indoor temperature fl uctuation is small when ventilating. As the
simultaneous performance of exhaust air and supply air, it can be
ventilated in high density space.
5. Sound isolation The air duct and heat exchange core has the effect of sound isolation.
It prevents the outdoor noise from entering into the room and keeps
the indoor sound from spreading for not breaking the nice atmosphere
such as in the of
fi ce or store.
USING CAUTIONS
Avoiding the coming of insects
Energy Recovery Ventilator is intended to exchange outdoor air and indoor air. When the outdoor
air comes in, it may bring the insects from outdoor pipe hood to internal unit.
As insect occurrence is affected by natural environment, it’s recommended to use the pipe hood with
fl y nest when using the unit under the environment with many insects such as near the street light.
It must operate with Filter Box Unit.
If not using the Filter Box Unit, heat exchange
core is clogged with dirt and dust, performance
will be lowered and even the unit doesn’t work. Turn on /off the switch correctly.
Repeatedly turning on or off the switch not only
cause wrong operations but also affects the
relay inside and damage it.
Recommend to stop the unit in the high density
of dust such as sandstorm.
If the
fi lter is clogged in
short time, it will not be
work under the normal
ventilation. In addition,
under the condition of
high indoor density of
dust, even if the
fi lter is
puri fi ed, part of the dust
will enter into the room
together with the fresh air.
It’s forbidden to use the
「
normal ventilation
」
since the dew will be produced in unit and
indoor air inlet if operating the mode
「
normal
ventilation
」
when the room is heated in winter.
Winter
normal
ventilation
Stop