AC drives simplify air conditioning production
A
Control Techniques product story
Edited by the Engineeringtalk editorial team
Feb 26, 2008
The Commander SK drives are so compact that they can be integrated into the air handling unit itself, eliminating the need for a separate cubicle.
An Irish manufacturer of air handling units for heating, ventilating and air conditioning has standardised on AC variable speed drives from Control Techniques.
Mark Eire manufactures a wide range of stand alone and integrated air handling units and heaters in Macroom, County Cork, for the environmental control of commercial and industrial premises.
The company uses the Commander SK AC drive (2.2kW - 22kW) from Control Techniques.
"We switched over some four years ago from a system of geared pulleys to alter the air volume to variable speed drives", explains Paraic O'Conaola, Purchasing Manager at the plant.
"From the outset, we used Control Techniques Commander SE drives, then switched to the new Commander SK when the range was introduced".
"While price is important in this very competitive market, the physical size of the drives is a crucial factor".
"The Commander SK drives are so compact that they can be integrated into the air handling unit itself, eliminating the need for a separate cubicle".
"In commercial and industrial premises, space costs money".
"The switch to variable speed drives improved the energy efficiency of the air handling units, precisely matching motor speed to the actual air demand".
The Commander SK units are very quick and easy to set up, according to Electrical Technician, Brenda Curran.
"It's just a matter of a couple of minutes", she said.
"We use the autotune feature, where the drive sets up the basic parameters itself and smooths out any motor noise".
"We simply set the minimum speed, usually 38Hz and the maximum 50Hz".
"The display shows diagnostics too".
"Final set-up is carried out on site since air volumes are rarely exactly as quoted and this is very easy to do".
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