30 Condensing Units
Concentrating on the meat and the peas
GROWTH IN the convenience store sector, along with the need to update older and less efficient refrigeration equipment, has seen the demand for packaged condensing units continue to grow in recent years.
In today’s urban environment, refrigeration systems need to be compact, quiet and have a low carbon footprint. The competition is intense and end- user expectations are high. As a result the most economical but also practical refrigeration systems are being requested. Emerson Climate Technologies has reacted to this growing demand by developing the widest range of units on the market using Copeland Scroll technology.
Medium temperature models range from 2hp to 7.5hp and single phase from 2hp to 4hp. Digital models from 4hp to 7.5hp have also been added for highest levels of efficiency and all models are released for use with R404A, R407A, R407F and R134a.
Low temperature models are available in three phase from 2hp to 7.5hp and in single phase from 2hp to 3hp. Refrigerant options are also widening as the low temperature models are now being released for use with R404A, R407A and R407F.
When developing the new Copeland EazyCool ZX condensing units the focus was on two main objectives – to reduce life cycle costs through improved
Oliver McAtasney of Higgins Refrigeration and Barry McCarville of RDL.
system efficiency and reliability, and to simplify installation and operation of the condensing unit.
“Both of these objectives needed to be realised in a compact housed unit with a low sound level,” explains Markus Lenz, product manager for condensing units at Emerson Climate Technologies. “With efficiency increasingly becoming more of an important criterion when deciding for or against a product, the Copeland EazyCool ZX unit range sets a high benchmark.”
The efficiency advantage of the Copeland Scroll compressor is further reinforced by a generously sized condenser.
In practice More than 74% of life cycle costs of a condensing unit relate directly to the use of electricity. ACR News March 2014
One company to have fully realised the benefits of the ZX range is Higgins Refrigeration based in Monaghan. Over the years Higgins Refrigeration has installed many Copeland scroll condensing units with good results, thanks to the reliability of Copeland Scroll and the Copeland condensing units incorporating the technology. “We are delighted to have used the Copeland range of ZX units that now also includes the ZXD digital units for our customers who are looking for modulating capacity. This gives lower running costs, high reliability and a low noise solution,” says Oliver McAtasney of Higgins Refrigeration. “As an installation company we see a key benefit of easy to install package units because they cut down dramatically on install times. In addition, the digital units offer excellent control of evaporating pressures”. Based on Copeland Scroll Digital compressor technology, ZX Digital condensing units operate on a simple mechanism. Capacity control is achieved by separating the compressor scroll sets axially over a short period of time. It is a simple mechanical solution allowing precise temperature control thus improving system efficiency. Digital Scroll technology allows continuous modulation from 10% to 100% capacity. Adjustment to the
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