York YLAA Operation Manual page 6

FORM 150.72-EG6 (516)
Introduction (Cont'd)
Efficiency
YLAA high-efficiency chillers, with their innovative control algorithms, offer industry-lead-
ing energy efficiency. Real-world energy efficiency is measured by IPLV (off-design) per-
formance, and YLAA chillers provide some of the best IPLVs in their class.
YLAA also offers an efficiency choice. In addition to the high-efficiency units, YLAA chill-
ers are available in standard efficiency models with smaller footprints and lower capital
costs.
Only pay for the chiller you need – the multi-efficiency levels of the YLAA allow you to
decide the best investment for the job.
Flexibility
The YLAA chiller offers a number of options designed to operate reliably across a wide
range of customer needs. It can cool glycol down to 10°F (-12°C). It can provide heat
recovery up to 140°F (60°C), with up to 85% of total heat rejection captured.
When factory-mounted pump kits are considered, there are now more pump sizes to
choose from. The optional kits come standard with valves, pressure ports, flow switch,
and strainer for quick hook-up, and frost protection to prevent freeze-up. There are also
more pump options available: variable-speed drives, dual pumps, service shut-off valves,
expansion tanks, and additional test ports for temperature and pressure sensing.
Standard low sound and multiple sound attenuation options allow flexibility in locating the
chiller, and reduce the cost for field-constructed barriers.
Sustainability
The YLAA makes you a leader in sustainability through innovation, not added cost. With
the combination of R-410A refrigerant, which has no ozone-depletion potential, and state-
of-the-art heat exchanger technology that allows refrigerant charge to be reduced by as
much as 30%, the YLAA chiller provides the most ecologically friendly equipment. Part-
nered with its low-sound properties for noise pollution prevention, this chiller is a true
earth-friendly offering.
6 JOHNSON CONTROLS