Installing the Lossnay unit
1. Installation of main unit
Use the attached screws (ø5 mm) to install the unit ﬁxing plates
to Lossnay unit. The screws and unit ﬁxing plates are inside of
maintenance panel A.
Install the main unit horizontally and ﬁx it securly using off-the-shelf
washers and nuts (M16).
Install in a manner that the product weight will be supported
by the entire area of the base as illustrated.
Maintenance panel A
Unit ﬁxing plate
Screws (ø5 mm)
2. Attaching the duct connecting ﬂanges
Use the attached screws (ø4 mm) to secure the duct connecting
ﬂanges to the Lossnay unit.
Duct connecting ﬂange
4 x ø20 hole
(For securing main unit)
Unit ﬁxing plate
3. Connecting the ducts
(1) Fasten the duct securely to the duct connecting ﬂange, and
wrap aluminium tape (not attached) around the joints so that
there is no air leakage.
(2) Suspend the ducts so that their weight will not be applied to
the Lossnay unit.
(3) The two outdoor ducts must be covered with heat-insulating
material in order to prevent condensation from forming.
Before attaching the ducts, check that no (debris or any
other) foreign matter (scraps of paper, vinyl, etc.) has found
its way inside the ducts.
If it is expected that the ambient temperature around the
place where the Lossnay unit is installed will be high during
the summer air conditioning season, it is recommended that
the indoor duct work be covered with insulation material.
Do not carry out the following types of duct construction. (Doing so
could cause a drop in the air volume and generate abnormal noises.)
• Multiple bends
4. Installation example
More than 600
• Bends right next
• Extreme reduction in
to the outlet
the diameter of the
Trap against rainwater
(outside air intake)
(exhaust air outlet)
Duct incline Over 1/30
(toward the wall)