Introduction - Lennox ARIA EC Series Application Manual

Introduction

The ARIA EC compact air conditioning module is available in two sizes for conditioning rooms from 12 to 50 m².
ARIA EC has been designed to match with very last rules in energy savings and comfort. It is equipped with new
generation electronic commutation (EC) motors whose electric consumption is lower than motors used in
traditional fan coils.
This very low consumption added to speed variation provide a 75 % electric consumption annual saving.
Electronically commutated motors can control rotation speed from 10 to 100% of its operating range.
This EC technology allows suppressing all electric noises and vibrations risks and also significantly decreasing
overheating, increasing lifecycle of the unit. ARIA EC is the perfect solution for the air conditioning of luxury
residential and tertiary buildings. The installation in false ceiling is easy, allowing high installation and
maintenance economies.
The overall height of 233 mm of allows an integration of very weak false ceiling voids met in buildings in restoration or
buildings of which the overall height is of primary importance
ARIA units supply and return air spigots positions may be adapted to specific building requirements. The
installation of this unit will be generally made with the top of the false ceiling of space conditioning, near the supply
and return air diffusers.
The fan available static pressure provide for multiple installation possibilities; simplified and reduced maintenance,
ease of access to all components, are essential attributes for an intelligent air conditioning system.
The electronical commutation of motors allows the airflow to be appropriately set to the specific thermal need of
the building. The communicating or non-communicating electric control permanently adjusts ARIA EC operation
ARIA EC units are available in all the configurations demanded by the market, i.e. 2 Pipe Change/Over, 2
Pipe/2Wire and 4 Pipe. The On/Off type water flow control valves associated with electronic controls, offer a
perfect control of the space temperature. The electric heaters used in the 2P/2W application, are equipped as
standard with a manual reset thermostat, reset by switching off the power, and thermo fusible link.
Characteristics
The modular design of the ARIA EC adapted to "intelligent" buildings, allows it to be meet the air conditioning
requirements of medium sized rooms.
The very low height of the module, 233 mm overall, is made from 8/10 mm galvanised steel sheet internally lined
with 8 mm thick Melamine foam insulation protected by an aluminium film (Fire class M1). As ann option, ARIA EC
unit can be covered with foam reinforced for decreased the noise level.
ARIA EC unit is equipped as standard with 4 suspension fixings incorporating (pouvant recevoir) rubber anti
vibration mounts specially designed to support the weight of the unit and absorb the frequencies generated.
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