YORK ® AIR-CONDITIONING PRODUCTS
Magnetic bearing centrifugal chiller
YZ
Proven Firsts
Groundbreaking YORK ® innovations refined over decades of real-world use have been brought together to create a revolution in chiller design and
optimization. It’s everything we’ve learned to-date, and then some.
Variable-Speed Drive:
Four decades ago, YORK ® introduced
the first variable-speed drive (VSD)
chiller. And we’ve since installed more
VSD chillers than all other manufacturers
combined. A VSD is standard on the
YORK ® YZ.
Low-Pressure Chiller:
For most of the past century, the
YORK ® centrifugal chiller portfolio has
offered low-pressure refrigerants to
deliver high-efficiency chillers. The
YORK ® YZ is designed to maximize the
efficiency of a new, low-GWP, low-
pressure refrigerant.
Magnetic Bearing Driveline:
In 1998, YORK ® Navy Systems
pioneered reliable magnetic-bearing
technology to cool submarines. The
same durable and efficient technology
is used on the YORK ® YZ.
OptiView™ Control Panel
with Connected Service:
The full-color, interactive OptiView™
control panel of the YORK ® YZ offers
over 100 setpoints, readouts, alerts and
trending reports. In addition, data can
be securely connected to the cloud-
based analytics platform for remote
monitoring and predictive diagnostics –
another innovation first brought to you
in YORK ® chillers.
High-Speed Hermetic
Induction Motor:
YORK ® was the first to combine low-
maintenance, hermetically-sealed
induction motors with variable-speed
drives in 2004 to directly drive the
compressors in air-cooled chillers. The
YORK ® YZ builds on this reliable, proven
technology to power our latest generation
of centrifugal compressors.
Falling Film Evaporator:
The YORK ® -patented falling film
design of the YORK ® YZ reduces
refrigerant charge up to 60%, and
reduces evaporator shell size up to
20%, compared to other flooded,
low-pressure refrigerant designs.
The YORK ® patented falling film
design also eliminates the need for a
refrigerant pump.
Optimized Compressor:
An optimized, single-stage design
enables YORK ® chillers to provide the
best possible real-world energy efficiency.
YORK ® YZ compressors also lead the
industry with the widest operating range
at off-design conditions where systems
most often operate.
Capacity Control Logic:
This patented YORK ® control
technology provides rapid response
to the load on the building, ensuring
the YORK ® YZ Chiller does not waste
energy or work harder than needed.
Manufacturer reserves the rights to change specifications without prior notice.
63