SAFETY PRECAUTIONS <must be complied>
Don’t use it in the following locations.
Don’t install the unit in locations such as machinery or chemical plants where it will be exposed to
noxious gases containing acids, alkali, organic solvents, paint fumes, etc., to gases containing
corrosive ingredients, or where dust or oil mist will be produced.
(gas poisioning, corrosion and degradation accured in unit may cause the fire.)
86,1*&21',7,21&$87,21
Using condition
Outdoor air condition
Temperature range -10
ć
～
40
ć
，
relative humidity 85% or less
（
to the
slim type added cold proof area BOX, lowest temperature range -20
ć
）
Indoor air condition
Temperature range -10
ć
～
40
ć
，
relative humidity 85% or less.
Installation requirements: same as the indoor air conditions.
Indoor air here means air in air-conditioned living rooms. The appliance
usage in refrigerators or other places where temperature can fluctuate
greatly is prohibited even if a temperature range is acceptable.
Absolute humidity
dry-bulb temperature(
ć
)
Be careful of frost and dew
The Energy Recovery Ventilator manufactured by our company is conducted the condensation without the
water dropping test in the following conditions based on JIS B 8628:2003,if using condition is rougher than
the following sheet, it may cause the frost or dew.
JIS B 8628:2003Energy Recovery Ventilator AppendixF (specification)condensation test method
Relative humidity is calculated according to JIS B 8628:2003.
Energy Recovery Ventilator is intended to exchange outdoor air and indoor air. When the outdoor air comes in,
maybe 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 fly net when using the unit under the environment of
many insects such as near the street light.
Avoiding the coming of insects
Classification
Indoor condition
Outdoor condition
Operation
status
Measured
time
(h)
6 hours
6 hours
6 hours
operate
operate
Stop
*relative
humidity(reference)%
wet-bulb
temperature
dry-bulb
temperature
*relative
humidity(reference)%
wet-bulb
temperature
dry-bulb
temperature
Cooling in
summer
Heating in
winter
Heating in
winter
As shown in the right figure, it’s supposed that a high temperature absorbing air condition A and a low
temperature absorbing air condition B are plotted on the air line figure, then a high temperature air A is
heat-exchanged by the unit and Point C represent the trend of saturation curve .In this case, it will cause the
dew or frost inside the unit. To avoid this, you are required to heat a low temperature air B up to B' so as to
get C' below the saturation curve before using the unit.
Locations exposed to high
temperature or direct flame.
Avoid installing the ERV in locations
which reach temperature of 40
ć
or
above. Usage under high temperature
conditions may cause distortion of the
filter or heat exchange core or motor
burn-out.
Locations with high humidity.
Do not install in high humidity
locations such as bathrooms. Dew
occurred in unit may cause electric
shock, short circuit, other electric
accident and produce the dewing
water drops.
Locations with large amounts
of cooking fumes.
The unit doesn’t work if the filter or
heat exchange core become
clogged with oil which may cause
fire.
Operation Instruction
indoor air inlet
cooking fumes
