Features; Introduction - York YK Manual

Introduction

JOHNSON CONTROLS
The YORK YK Chillers, manufactured by Johnson Controls, offer a complete combina-
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tion of features for total owner satisfaction.
MATCHED COMPONENTS MAXIMIZE EFFICIENCY
Actual chiller efficiency cannot be determined by analyzing the theoretical efficiency of
any one chiller component. It requires a specific combination of heat exchanger, compres-
sor, and motor performance to achieve the lowest system kW/ton. YORK
nology matches chiller system components to provide maximum chiller efficiency under
actual – not just theoretical – operating conditions.
REAL-WORLD ENERGY PERFORMANCE
Johnson Controls pioneered the concept of "Real-World Energy" to illustrate the energy-
saving potential of focusing on chiller performance during off-design conditions. Off-de-
sign is not only part load, but full load operation as well, with reduced entering condenser
water temperatures (ECWTs). This is where chillers operate 99% of the time, and where
operating costs add up.
The YORK YK chillers are the only chillers designed to operate on a continuous basis
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with cold ECWT and full condenser flow at all load points, taking full advantage of Real-
World conditions. This type of operation benefits the cooling tower as well by reducing the
cycling of the fan motor and ensuring good coverage of the cooling fill.
YORK YK chillers offer the most efficient Real-World operation of any chiller, meaning
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lower operating costs and an excellent return on your chiller investment.
OPEN-DRIVE DESIGN
Hermetic motor burnout can cause catastrophic damage to a chiller. The entire chiller
must be cleaned, and the refrigerant replaced. YORK
this risk by utilizing air-cooled motors. Refrigerant never comes in contact with the motor,
preventing contamination of the rest of the chiller.
Insurance companies that offer policies on large air conditioning equipment often consider
air-cooled motors a significant advantage over hermetic refrigerant-cooled units.
HIGH EFFICIENCY HEAT EXCHANGERS
YORK YK chiller heat exchangers offer the latest technology in heat transfer surface de-
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sign to give you maximum efficiency and compact design. Waterside and refrigerant side
design enhancements minimize both energy consumption and tube fouling.
FORM 160.75-EG1 (519)
chiller tech-
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YK centrifugal chillers eliminate
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