Introduction; Comfort; Air Quality; Carrier Quality - Carrier Atmosphera 42EM Series Manual

1 - INTRODUCTION

The 42EM Atmosphera from Carrier is a compact air condition-
ing system, available in three sizes - 1, 2 and 3. Sizes 2 and 3
are both available in four models and four motor drive selec-
tions, suitable for air conditioning of rooms from 25 to 75 m
in size.
The main components of each unit comprise a centrifugal fan,
a fresh air inlet with an air flow regulator (option), a chilled
water cooling coil and either a hot water heating coil or an
electric heater.
Connections between the unit and one or more linear boot
diffusers (35BD Moduboot range), installed in the false ceiling
above the area to be air conditioned are made on site using
thermally and acoustically insulated flexible ducting.
The complete system comprises one or more Carrier air or
water-cooled chillers and one or more air handling units to
supply fresh air to the 42EM Atmosphera units. These may be
installed in a false ceiling where they can be connected to the
fresh air supply and the hot and chilled-water circuits.
With their low height, the 42EM Atmosphera can be installed
in most areas. Its design allows for easy maintenance.
The 42EM Atmosphera consists of a casing without sharp
edges (where possible) to make product installation and
maintenance safer.
The 42EM Atmosphera was designed to meet customer
requirements and is available in many configurations and
models.
Noise or more precisely the absence of noise is a deciding
factor for the comfort of the occupants. The 42EM Atmosphera
has been designed to be particularly quiet. Low noise levels
and easy maintenance are key factors influencing the selection
of an air conditioning system.

1.1 - Comfort

The top of the range Atmosphera can have a Carrier numeric
controller to provide optimised comfort for the building
occupants.
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1.2 - Air quality

1.2.1 - Fresh air
The selection of the air flow controller is essential, based on
the room occupancy, and will make an important contribution
to the indoor air quality.
1.2.2 - Filtration
The cleanliness of the supply air is one of the primary functions
of air treatment giving the most basic and important measure
of "air quality" essential to our health. The air, which we
breathe, contains a wide diversity of particles, pollens and
dust, all possible allergens which can have varying effects
upon the health of individuals.
These come from many sources both within and outside the
building. Air filtration protects building occupants against
these particles and also the building (furnishings, equipment,
etc.) against contamination and damage.
The Atmosphera is equipped with a G3 (85% gravimetric
efficiency) filter.

1.3 - Carrier QUALITY

The Carrier QUALITY philosophy embraces the product
itself, its conception, its design and the integrity of its declared
performance (proven in rigourous laboratory tests) as well as
the manufacturing process, materials and components used to
create the product.
Carrier has been accredited with LRQA certification in
accordance with ISO standard 9001 since 1989.
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