Daikin Modular Rotary Instructions For Installation, Use And Maintenance Manual page 17

Fan motor assemblies
The fans used on the units are of
the EC type, procured from the
best manufacturers. This technolo-
gy guarantees high efficiency and
reduced noise in extremely compact dimensions. The maintenance of these machines is very limited,
as the motor is directly keyed on the impeller.
Heat recuperators
The recovery sections are made using counterflow recuper-
ators (Modular P). The exchange of energy between the out-
door air and the recovered air makes it possible to pre-treat
the supply air, lowering the heat output necessary for the
complete treatment.
Doors and handles
Each door of the ventilating sections is equipped with a se-
curity key, thus allowing access only to authorised personnel.
All locking handles on the same machine are identical.
Hinges
The hinges are made of black painted zamak alloy
Panels
The panels are made of double sheet metal folded into a box
enclosing the hot-injected polyurethane (density of 45 Kg/
m3 and fire reaction Class 1) or mineral wool (density of 120
Kg/m3 and fire reaction Class 0).
The material of the external sheet can be customised ac-
cording to the need for resistance to corrosion, ranging from
Aluzinc to pre-painted sheet metal.
The panels are attached with stainless self-drilling screws
housed in nylon bushes: the latter are embedded in the pan-
el and include a closing cap.
The use of stepped panels allows coupling with the profiles
that guarantees the continuity of the internal surface and a
better thermal insulation of the machine.
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