Features; Using Cautions - KDK E50DZUA Operation Instructions Manual

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.

FEATURES

1. Energy saving ventilation
2. Facility saving
3. Humidity function
4. Comfortable ventilation
5. Sound isolation

USING CAUTIONS

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.
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
purifi ed, part of the dust
will enter into the room
together with the fresh air.
6
Thanks to effi cient recovery of the thermal energy lost during
ventilation (fresh air load), you can save the air-conditioning fee.
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.
When cooling, reduce the outdoor air humidity to make the incoming
air humidity close to the indoor humidity.
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.
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 offi ce or store.
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.
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.
Stop
Winter
normal
ventilation