FORM 100.50-EG1
5
YORK INTERNATIONAL
• Enhanced filtration – The Eco
2
unit
gives design-
ers the flexibility to meet various IAQ requirements
with a full range of rigid and throwaway filters at
various efficiency levels.
Reliable Scroll Compressor Technology
Reliable, efficient, trouble-free operation is the true mea-
sure of a packaged rooftop’s value. That’s why YORK
Eco
2
Packaged Rooftop Air Conditioners use estab-
lished scroll-compressor technology to deliver depend-
able, economical performance in a wide range of appli-
cations. With the Eco
2
Packaged Rooftop, you get the
latest generation of compressor enhancements added
to the scroll’s inherent strengths. The simplicity of a
hermetic scroll compressor allows the use of fewer
moving parts to minimize breakdown. YORK also em-
ploys the latest sealing technology to avoid metal-to-
metal contact. Axial sealing is accomplished with float-
ing tip seals, while radial sealing utilizes a microcushion
of oil. The result: a maintenance-free compressor pro-
viding minimum wear and maximum runtime.
A scroll compressor operates with two scroll members—
a fixed scroll and an identical orbiting scroll turned 180
degrees, like two hands curled and interlocked together.
As the orbiting scroll oscillates against the fixed scroll,
it traps and compresses suction gas inside involute
pockets. As the orbiting scroll moves, the gas is com-
pressed into the central area, where it is discharged as
compressed gas. High efficiency is achieved through a
precisely controlled orbit and the use of advanced scroll
geometry. There is no wasted motion. All rotating parts
are statically and dynamically balanced to ensure opti-
mal performance over the long haul.
Balanced components and precision machining also
ensure that smooth compression occurs in all involute
pockets simultaneously. When compression forces are
equally distributed over the entire scroll surface, equal
forces in opposing directions cancel one another, mini-
mizing any imbalance. Consequently, compression is
smooth, continuous, and quiet. Vibration isolators on
each compressor handle normal vibration. For extra
quiet operation, acoustic sound blankets for each com-
pressor are available as options.
Serviceability
• OptiLogic
TM
– fully-integrated factory-packaged
controls are standard on every unit and include a
display unit with a 4x20 character LCD display.
OptiLogic
TM
continually monitors all control setpoints
and configurations. If a unit or control component,
or sensor fails, the controller notifies the user of a
problem. If desired, YORK service can provide re-
mote monitoring and automatically schedule a ser-
vice technician to make the repair and maintain your
comfort.
• Access doors – full-sized access doors provide
easy access into the unit for routine maintenance
and inspection.
• Suction & discharge service valves – oversized
service valves to provide isolation and quick recla-
mation and charging of system refrigerant are avail-
able to minimize downtime and simplify the service
and repair task.
• VFD Fan Motor Control with Manual Bypass –
Optional manual VFD bypass reduces time required
for troubleshooting, commissioning and system
balancing.
• Convenience Outlet – for maintenance tasks re-
quiring power tools, an optional 110V GFCI power
supply can power lights, drills or any other power
hand tool needed.
• Filter Maintenance Alarm – An optional filter main-
tenance alarm indicates when a filter becomes dirty
and requires replacement or cleaning.
Install with Ease and Safety
• Factory run-tested – Each unit is subjected to a
series of quality assurance checks as well as an
automated quality control process before being run-
tested. Fans and drives are balanced at the factory
during testing. The factory run-test ensures safe,
proper operation when the unit is installed and re-
duces installation and commissioning time.
• Single-point power connection – Single-point
power connection reduces installation time by pro-
viding a single point for incoming power, including
