York YZB018 THRU 060 Technical Manual

TECHNICAL GUIDE
AFFINITY
SPLIT-SYSTEM HEAT PUMPS
13 SEER – R-410A
MODELS: YZB018 THRU 060
(1.5 THRU 5 NOMINAL TONS)
Due to continuous product improvement, specifications
are subject to change without notice.
Visit us on the web at www.york.com
Additional rating information can be found at
www.ahridirectory.org
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
ISO 9001
LISTED
Certified Quality
Management System

DESCRIPTION

The YZB Series unit is the outdoor part of a versatile heat pump
system. It is designed to be custom matched with one of our com-
plete line of evaporator sections, each designed to serve a specific
function. Matching air handlers are available for upflow, downflow,
and horizontal left or right application to provide a complete system.
Electric heaters are available if required. Add-on coils are available
for use with upflow, downflow, or horizontal furnaces. Field installed
Accessories are available as needed.
WARRANTY
5-year limited parts warranty.
10-year limited compressor warranty.

FEATURES

• Superior Coil Protection – A stamped decorative metal coil
guard completely protects coil from debris and other large dam-
aging material while a polymer mesh further protects the coil
against smaller particles.
• Isolated Compressor Compartment – A molded composite
bulkhead isolates the compressor from the rest of the unit reduc-
ing sound and vibration.
• Protected Compressors – Each compressor is protected
against high and low pressure as well as excessive temperature.
This is accomplished by by the simultaneous operation of a high
pressure relief valve and temperature sensors which protect the
compressor if undesirable conditions occur.
• Environmentally Friendly Refrigerant – Next generation
refrigerant R-410A delivers environmentally friendly perfor-
mance, with zero ozone depletion.
• Durable Finish – Automotive quality finish provides the ultimate
protection from harmful U.V. rays as well as rust creep ensuring
long-lasting high quality appearance. A powder-paint topcoat is
applied over a baked-on primer, using a galvanized, zinc coated
steel base material. The result is a finish that has been proven in
testing to provide 33% greater durability than conventional pow-
der-coat finishes.
• Lower Installed Cost – Designed to provide enhanced install-
ability by featuring a slide-down control compartment allowing
easy access to control components along with angled service
valves to reduce overall installation time and cost.
• Low Operating Sound Levels – A fan design boasting technol-
ogy adapted from aeronautic and defense engineering provides
for whisper quiet operation by allowing airflow to flow smoothly
and efficiently across the fan tips.
• Filter-Drier – A factory installed, solid core liquid line filter-drier
filters harmful debris and moisture from the system.
• Easy Service Access – A full end, full service, access panel
with handle makes for easy entry to internal components.
• Long Lasting Operation – Strong and durable composite base
pan provides added strength while resisting rust and corrosion
as well as reducing sound and vibration.
• Complete System Control – These heat pumps utilize the
unique microprocessor defrost control system to provide optimal
comfort as well as monitor the overall system for reliable opera-
tion. The defrost control system continuously monitors the space
environment to maintain optimum efficiency. It initiates defrost
only when necessary to further reduced heating costs and
improve reliability. Supplemental heat can only operate below
the balance point and then only upon need. In the event
improper operating conditions occur (high temperature and/or
high pressure), the will automatically shut the system down to
extend the life of the heat pump. Rapid cycling is prevented by
use of an internal anti-recycle timer. The defrost control features
an internal memory to aid the technician in troubleshooting,
reducing service time and cost.
• Agency Listed - U.L. and C.U.L. listed - approved for outdoor
application. The unit is certified in accordance with the Unitary
Small Equipment cerification program, which is based on ARI
Standard 210/240.
271457-YTG-B-0908