1 - SAFETY CONSIDERATIONS
1.1 - General
The 39HQ air handling units (AHUs) has been designed
and manufactured in accordance with the CE machine
directive EN292. In order to guarantee safe operation and
use of the unit, please carefully read and observe the
instructions in this document and pay special attention to
the warnings that apply to this unit. Any modifications in
the design and/or installation of the AHU that are carried
out without discussion with Carrier Holland Heating and
without advance written agreement will result in the loss of
the right to any warranty claims and any claim for injury to
personnel as a result of these modifications.
Maintenance procedures may only be carried out by
qualified personnel.
Heating and cooling elements are manufactured and
supplied in accordance with guidelines of the Pressure
Equipment Directive (PED).
1.2 - Applications
The AHU is designed for the movement and conditioning
of air, unless otherwise agreed during the design stage.
1.3 - Instruction types
The following warning pictograms and labels with text are
used.
Lifting point
This pictogram shows where the AHU must be lifted and is
positioned on the support beam.
Lifting prohibited
This pictogram shows that no horizontal transport devices
must be placed under this frame section, such as pallet
lifters or the forks of fork lift trucks. It is also forbidden to
place lifting devices for transport and storage under this
frame element.
Earthing
This pictogram indicates where the AHU must be earthed
and is on one of the support beams beneath the casing in
the fan section.
- The electrical components in the AHU must be earthed,
except for components with double insulation and/or
components with a supply voltage below 50 V.
- The electrical components must be installed in accordance
with national and local regulations.
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.
Hot surfaces
This pictogram indicates that there are components behind
this access cover, door or panel that can cause serious burns
when touched.
The components that may have hot surfaces are the steam
humidifier, steam heater and the electric heater. 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.
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