(c) Protect the filter from silting due to dust by blowing air on both
(d)When dirt is conspicuous, press wash with a neutral detergent, rinse
with clean water, and allow to dry naturally. When replacing,
replace with the same product.
(e) To install, insert the filter in the cover, align the flange in the
groove, and press. Confirm that the cover will not come loose even
if it is pulled.
(2)Cleaning heat exchanger
(a) When cleaning, be sure to cut off the fan power source.
(b)Take out the external fan unit from the heat exchanger main unit.
Installation screws B (1)
Earth cable (if the installation screw on the
fan side is detached, it can be taken out)
Installation screws A (2)
Detach the two installation
screws (A) of the external fan
unit, and detach the unit from
the main unit by sliding it
down. Detach the power
source cable to the fan and
the earth cable. Also detach
installation screws (B).
Power cable for fan
(detach the connector)
External fan unit
(i) Cleaning fan unit
Wipe the dirt, condensation, etc., which has accumulated on the fan
motor and fan installation case with a dry cloth. When the
condensation, etc. has accumulated and the dirt is difficult to
remove, soak a cloth in neutral detergent, lightly squeeze it and
wipe away the dirt.
However, take care not to allow the detergent to enter the electrical
sections such as the internal rotor of the fan motor.