Due to continuous product improvement, spec i f ic ations
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
Management System
271457-YTG-B-0908
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 complete line of evaporator sections, each designed to serve a specific
function. Matching air handlers are available for upflow, downflow,
and horizontal left or right applicat ion to provide a compl ete 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 damaging 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 uni t reducing sound and vibration.
• Protected Compressors – Each compressor is protected
against high and low pressure as well as excessiv e temp erature.
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 performance, 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 prove n in
testing to provide 33% greater durability than conventional powder-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 technology 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 operation. The defrost control system continuously monitors the sp ace
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 wil l automatically shut the system down t o
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.
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
Crankcase HeaterNoNoNoNoNoNoNo
Fan Motor AmpsRated Load0.50.51.51.51.51.51.5
Fan Diameter Inches22222222222224
Rated HP1/151/151/41/41/41/41/4
Fan Motor
Nominal RPM850850850850850850850
Nominal CFM2,0502,2503,2003,2503,2503,5003,500
Face Area Sq Ft14.8617.1517.1520.5820.5820.5823.58
Coil
Rows Deep 1111122
Fin /Inch22222222222218
Liquid Line Set OD (Field Installed)3/83/83/83/83/83/83/8
Vapor Line Set OD (Field Installed)3/43/43/43/47/87/87/8
Unit Charge (Lbs - Oz)
5
7-17-107-99-59-212-516-8
Charge Per Foot, oz.0.620.620.620.620.670.670.67
Operating Weight Lbs175190195220220260265
1. Rated in accordance with ARI Standard 110, utilization range “A”.
2. Dual element fuses or HACR circuit breaker. Maximum allowable overcurrent protection.
3. Dual element fuses or HACR circuit breaker. Minimum recommended overcurrent protection.
4. All scrolls listed with superscript “B” are Bristol scrolls. All scrolls listed with superscripts “C” are Copeland scrolls.
5. The Unit Charge is correct for the outdoor unit, matched indoor coil and 15 feet of refrigerant tubing. For tubing lengths other than 15 feet,
add or subtract the amount of refrigerant, using the difference in length multiplied by the per foot value.
187 to 252
VAPOR
LIQUID
2-3/8
3-1/8
6-1/2
All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request.
DIMENSIONS
Unit
Model
A
Dimensions
(Inches)
A BCLiquidVapor
01829-1/23731
02433-1/23731
C
B
03033-1/23731
03639-1/23731
04239-1/23731
06039-1/24234
Refrigerant
Connection
Service Valve Size
3/4”
3/8”
7/8”04839-1/23731
2Johnson Controls Unitary Products
271457-YTG-B-0908
Additional R-410A Charge / TXV Size for Va rious Matched Systems
Outdoor Unit YZB1811YZB02411YZB03011YZB03611YZB04211YZB04811YZB06012
Required TXV
Factory Charge, lbs-oz7-17-107-99-59-212-516-8
Indoor Coil
1
2
Shaded areas indicate matches that require variable sp eed indoor unit to meet minimum efficiently standards.
Data provided for charge adder information only.
1. If indoor coil comes with a factory-installed TXV, it must be removed and replaced with the required TXV.
2. Systems matched with furnace or air handlers not equipped with blower-off delays may require blower Time Delay Kit 2FD06700224.
3. A TXV kit must be used with these coils to obtain system performance (901, 902, 903, 904, 905 indicates 1TVM …series).
* Does not achieve 13 SEER with PSC furnaces. For ratings, see technical guide or visit www.aridirectory.org/ari/unitary.html.
PROCEDURES:
1. Unit factory charge listed on the unit nameplate includes refrigerant for the condenser, the smallest evaporator and 15 feet
of interconnecting line tubing.
2. Verify the TXV and additional charge required for specific evaporator coil in the system using the above table.
3. Additional charge for the amount of interconnecting line tubing greater than 15 feet at the rate specified on the previous page.
4. Permanently mark the unit nameplate with the total system charge. Total System Charge = Base Charge (as shipped) + adder for
evaporator + adder for line set.
Rated in accordance with DOE test procedures (Federal Register 12-27-79 and 3-18-88) and ARI Standards 210.
Cooling MBH based on 80°F entering air temperature, 50% RH, and rated air flow.
EER (Energy Efficiency Ratio) is the total cooling output in BTU’s at 95°F outdoor ambient divided by the total electric power in watt-hours at those conditions.
SEER (Seasonal Energy Efficiency Ratio) is the total cooling output in BTU’s during a normal annual usage period for cooling divided by the total electric power
input in watt-hours during the same period.