4
Central data
This label contains the data for the AHU, such as order
number, position number etc. If present, the label is
normally located on the access cover or the door of the fan
assembly.
If the AHU consists of several parts, each part must
have a label with the required data.
Hot surfaces
This pictogram indicates that there are components behind
this access cover, door or panel that can cause serious
burns when touched.
The surfaces that may be hot are the heater surfaces. If
there are special special customer-specific components
behind doors, access covers or panels that have hot
surfaces and pose a potential risk, this is also indicated by
this pictogram.
Electrical voltage
This pictogram indicates that there are electrical
components behind this access cover, door or panel that
may be dangerous for the user/installer. Only qualified
electrician is permitted to carry out work on these
components. Do not work on electrical components including
control panels, switches, VFD untill you are sure ALL POWER
IS OFF and no residual voltage can leak from capacitors or
solid state components. Lock open and tag electrical circuits
during servicing ( see annex1 for lock out tag out instructions).
If the operation is interrupted, confirm that all circuits are
deenergized before the operation is resumed. For this work
the regulations of the applicable international (a.o. IEC
61557, EN 50110 and ES 59009) and national (e.g. BS
7671) standards must be observed. The pictogram is
attached to the access cover for the electric heater control
box.
Rotating parts
This pictogram indicates that there are rotating parts
behind this access cover, door or panel which may cause
injury. The components that include rotating parts are the
fan and heat recovery wheel. If there are special customer-
specific components behind doors, access covers or panels
that include rotating parts and pose a potential risk, this is
also indicated by this pictogram.
