PACKAGED ROOFTOP UNITS, HEAT PUMPS
AND OUTDOOR AIR HANDLING UNITS
RZ
Features:
• Air-cooled condenser, water-cooled
condenser, or evaporative-cooled
condenser packaged rooftop units from
55-240 tons
• Water-source and geothermal heat
pump options
• Chilled water or non-compressorized
DX air handling units, from 8,90075,500 cfm
• R-410A scroll compressors or R-134a
oil-free magnetic bearing Turbocor
centrifugal compressors
• Double wall rigid polyurethane foam
insulated cabinet construction
• Optional walk-in compressor and
control service vestibule
• Unit access doors with full length
hinges and lockable handles
• Spring isolated direct drive backward
curved plenum supply fans
• Blow-through and draw-through fan
configurations
• Electric, steam, hot water, indirect fired
gas, and direct fired gas heating
• Power exhaust and power return
options
• Factory installed AAONAIRE sensible
and total energy recovery wheels
• Humidity control features including
return air bypass and modulating hot
gas reheat
• Option boxes available for field installed
components
Series
Makeup Air Applications
Up to 100% Outside Air
Application Flexibility
Minimizes Installation Time and Reduces Cost
Dehumidification
and Filtration Capabilities
Easy to Install and Service Factory Installed or Customer
Specific Control Options
Rooftop Conditioners
RZ
Rooftop/Air Handling Units
AAON continuously strives to satisfy the
dynamic industry requirement for large
energy ecient packaged rooftop
equipment. The RZ Series design
incorporates the AAON long term
commitment and dedication to excel as
the premier manufacturer of rooftop
equipment. RZ Series units are available
in multiple congurations and include
many standard features that make AAON
synonymous with quality products for any
application.
Series
Superior Features
• Access doors are provided in areas subject to scheduled maintenance. Walk-in
doors are constructed with stainless steel piano hinges, perimeter gaskets, and
zinc cast lockable handles that operate from a single point.
• Aluminum tread plate oor covering in appropriate equipment access areas for
improved durability and safety.
• Selectable number of draw-through or blow-through direct drive backward
curved plenum fans allows design exibility for quieter applications and
redundancy for applications where unit up time is critical.
• Microprocessor controls are compatible with BACnet®, Modbus, LonTalk®, and
Fox protocols for integration with a variety of controls systems.
• Corrosion resistant polyurethane paint exceeds a 2,500-hour salt spray test.
• Refrigerant circuits are provided with removable core lter driers and isolation
valves for ease of service; no need to cut the refrigerant line as is done with
brazed in lter driers.
• Unit specic color-coded wiring diagrams are provided in point-to-point and
ladder form and are laminated and permanently axed inside the control
compartment for ease of service.
• Factory installed, sensible or enthalpy controlled , AMCA Certied Class 2 low
leakage gear driven economizer dampers allows for free cooling.
H
L
Full Featured, Energy Efficient,
Packaged Rooftop Units to Meet
Today’s Requirements!
Premier Options
• Staged or VFD driven variable speed scroll compressors are available for load
matching cooling and increased part load eciency.
• Oil-Free magnetic bearing R-134a Turbocor centrifugal compressor
option provides load matching cooling capacities with quiet, energy
ecient operation.
• Optional walk-in compressor and control service vestibule provides
complete access to all components.
• Marine service lights for quick and convenient maintenance.
• Compressor isolation valves are available for improved service eciency.
• Double pane viewing windows can be installed in all doors where
viewing of operating equipment or interior cabinet is needed.
• Multiple methods of humidity control including: High Capacity
Cooling Coils, Return Air Bypass, and Modulating Hot Gas Reheat
Humidity Control which provides ecient dehumidication, even with
low sensible heat loads, without the temperature swings common with
on/o reheat systems.
• Multiple high eciency ltration options, including pleated, cartridge, or
bag type, with up to a MERV 14 eciency rating.
W
• Factory installed total and sensible AAONAIRE energy recovery wheels
save cooling and heating dollars. Return fans are available for high return
static applications.
• Polymer e-coated coils are available to extend the life of the coils and
protect them in corrosive environments.
• Interior corrosion protection option protects interior components of the
unit in corrosive environments.
• Option boxes are segments of the unit that can be left empty from the
factory so that components may be installed in the eld without the
trouble of installation and service in a crowded cabinet.
RZ
Rooftop/Air Handling Units
Series
Air-Cooled, Water-Cooled, or Evaporative-Cooled Condensers
Air-Cooled Condensing
Microchannel condenser coils are more ecient due to their enhanced
heat transfer. They are also up to 30 percent lighter and use less refrigerant
than traditional n and tube coils. The outward facing coils are intrusion
protected with perforated metal screens. All condenser coils are designed for
minimum 10°F of refrigerant sub-cooling. VFD can be installed on the
condenser fans for head pressure control and greater operating
temperature range, as well as to provide reduced sound levels at o design
ambient temperatures. All condenser fans are direct drive, axial ow propeller
type, and discharge vertically.
Evaporative-Cooled Condensing
When compared to air-cooled designs these units deliver both
outstanding energy eciency and signicant operational cost
savings. Energy cost reduction can be 20% to 40% annually dependent on
geographic location. Geographic locations that typically require a central
chiller and cooling tower are considered primary locations for application of
the evaporative-cooled condenser RZ Series rooftop unit. Factory installed
AAON evaporative-cooled condenser, with air-cooled de-superheater
and variable frequency drive controlled fans, can be 20-40% more energy
ecient than a comparable air-cooled condenser, can use 22-100% less
water than a conventional evaporative-cooled condenser, and require
22-100% less chemical usage than a conventional evaporative cooled
condenser. Interior of evaporative-cooled condenser is constructed of 304
stainless steel and other non-corrosive materials. De-superheater coils include
polymer e-coating for corrosion protection.
Water-Cooled Condensing
The energy ecient water-cooled units are of particular application value
when there exists an accessible water source or when cooling tower water is
available. The standard water-cooled RZ Series units include these features:
• Shell and tube refrigerant-to-water heat exchangers.
• Each heat exchanger is provided with are movable and cleanable type
basket lter.
• Heat exchanger piping connections are made within the condensing
section of the roof top unit.
Air Handling Units
The RZ Series also ts the job when units are required without compressors.
The unit will be built without a condensing section and walk-in compressor
and control vestibule. All other features and options are readily available. Air
handling units may include the following options:
• Supplied with a DX coil and expansion valves.
• Supplied with a chilled water coil in 4, 6, or 8 rows.
• The unit may be specied with any of the heating options to provide a
year-round rooftop heating and cooling package.
RZ
Model
055
065
075
090
105
120
130
140
090
120
150
180
181
240
Condenser Type
Air-Cooled,
Water-Cooled
Evaporative-Cooled
or Air Handling Unit
Evaporative-Cooled
Compressor Type Height
R-410A Scroll
R-134a Centrifugal
Turbocor
Compressors/
Circuits
4/2
1/1
2/1
Width
142
142
104
104
Length
Length varies
depending on
options selected.
Length varies
depending on
options selected.
All dimensions are in inches.
RZ Series Features
Evaporative-Cooled Condenser
Interior of evaporative-cooled condenser
is constructed of 304 stainless steel and
other non-corrosive materials. A desuperheater is installed above the moisture
eliminators, spray nozzles and the copper tube
condensers are below. Evaporative-cooled
condenser with de-superheater can use 22100% less water than a conventional cooling
tower.
AAON furnishes complete three chemical
system and all associated controls, injector
pumps, and control components to ensure
the proper treatment of the water system.
Electric Heat
Low watt density, nickel chromium
element, electric resistance coils. Modules
are 40KW individual circuit fused with
manual reset high temperature switches.
Walk-In Service Vestibule
The walk-in service vestibule provides
shelter for the maintenance and service
personnel while periodic maintenance is
performed on the unit. A uorescent light
xture is furnished in the compartment,
controlled by a light switch at the door,
and the vestibule can be heated and/or
cooled for comfort.
AAONAIRE®
This energy recovery ventilation
option can be provided in all model
sizes allowing reduced equipment
size and operating cost savings while
pre-conditioning the outside air being
introduced into the conditioned space.
Economizer
A full line of economizer options are
available. All are AMCA certied low
leakage with extruded airfoil blades and
rubber edge and aluminum end seals.
Evaporator Coils
Each evaporator coil has an expansion
valve. Double sloped stainless steel drain
pan is provided for positive drainage.
Tubing is dressed and structurally
supported.
Spring Isolators
Spring isolators provide sound at tenuation
for the main blower sec tion.
Gas Heat Exchanger
Constructed from stainless steel with
patented dimpled heat exchanger
design to maximize eciency at all inlet
air conditions. Burners have electronic
ignition and safety shutdown.
Blower Section
Single or multiple direct drive, single inlet
plenum fans with spring isolation on the
entire assembly allows optimization of fan
diameter, sound level, and eciency.
Microchannel Air-Cooled
Condenser Coils
Microchannel condenser coils are more
ecient, lighter, and use less refrigerant
than traditional n and tube condenser
coils.
RZ
Rooftop/Air Handling Units
130 ton Air-Cooled Condenser Horizontal Conguration RZ Series Rooftop Unit
Series
• High eciency microchannel air-cooled condenser with horizontal supply and return for application exibility.
• Modulating gas heating for precise supply air temperature heating control.
• Tandem VFD controlled variable speed scroll compressors for load matching cooling and increased part load eciency.
• VFD controlled condenser fan head pressure control for stable operation and improved part load eciency.
• Multiple humidity control options including high capacity evaporator coils and modulating hot gas reheat.
Lockable Handles
Walk-in doors are constructed
with stainless steel piano hinges,
perimeter gaskets, and zinc cast
lockable handles that operate from
a single point.
Hinged Access Doors
Full length stainless steel piano
hinges provide improved reliability
over single point hinges.
Optional Exhaust and
Return Fans
The axial ow and plenum power exhaust
and return fans are directly driven by the
mot or.
Patented De-Superheater Design
reduces water consumption and
chemical treatment
Evaporative-Cooled
Condenser Rooftop Unit
Blow-Through Design
Three Tank Water
Treatment System
Standard Double Sloped
Stainless Steel Drain Pan
Rigid polyurethane foam panel construction
provides greater thermal resistance and improved
indoor air quality
Water-Cooled Condenser
AAONAIRE Energy
Recovery Wheel
Outside Air Intake
Power Exhaust Fan
R-410A Scroll Compressor
SCR Controlled
Electric Heat
Walk-in Service
Vestibule
Standard Double Sloped
Stainless Steel Drain Pan
Water-Cooled
Condenser Rooftop Unit
Power Return Blower
Power Exhaust Fan
VFD Controlled Direct
Drive Fan Assembly
AAONAIRE® Integral
Energy Recovery Wheel
Outside Air Intake
RZ
Rooftop/Air Handling Units
Series
Heating and Cooling Options
The RZ Series can be congured as either a
draw-through or blow-through arrangement with
supply or return fans. The supply blower assemblies
are direct drive, unhoused, single inlet, single width,
fans with spring isolation.
The AAON ECat selection software easily allows
selection for constant or variable air ow
applications. The software determines the most
ecient alternatives for the application as a function
of fan quantity, fan diameter, fan blade width, and
rpm.
Inlet and outlet sound ratings are provided for
each combination of fans and unit inlet and outlet
sound ratings are determined for the overall unit
conguration. Multiple fans can provide improved
reliability, greater eciency, lower sound levels, and
greater service options.
Gas Heat
A system unique to AAON, the all stainless steel
design construction assures dependable, long term
functionality. Through elimination of the need for
internal turbulators, this unique design assures
trouble free service, capacity, and ecient
performance.
with either spun or die formed end caps. Chilled
Water coils are available in 4, 6, or 8 rows deep in
two dierent face areas for each cabinet size.
Hot Water or Steam Preheat Coils
When jobsite conditions require, coils are available
to precondition the outside air. 1 or 2 row hot water
or steam coils may be supplied to match the system
requirements.
Variable Capacity Compressors
RZ Series unit are available with variable
capacity compressors which allow the unit to be
able to provide a consistent supply air temperature
at all operating conditions. VFD driven variable
speed R-410A scroll compressors are available for
load matching cooling capabilities and increased
part load eciency. Variable capacity R-134a centrifugal compressors provide load matching cooling
capabilities, with quiet energy ecient operation.
During part load operation, reducing compressor
capacity saves system operating costs.
Flexibility
The wide range of unit sizes, capacities, airow
rates, as well as, the standard design features and
the many available options make the RZ Series the
wise selection.
A Trend Setting Design
In the past when greater airows were required,
the diameter of the single plenum fan was simply
increased to meet the requirement. This results in
higher tip speeds, which also means higher sound
levels. With the AAON RZ Series, the greater airow
rates can be accomplished with multiple fans of
smaller diameter, which inherently will be quieter
than a single larger diameter fan. All the fans are
also directly driven by the motor, which eliminates
the drive belt assembly and associated requirement
for maintenance. The entire assembly is then spring
mounted to further enhance the vibration isolation
and reduce sound transmission.
Electric Heat
Electric resistance heating coils are open type with
low watt density nickel chromium elements. The
heating modules are 40 KW with individual circuit
fusing and a manually reset high temperature limit
switch.
Hot Water and Steam Heat Coils
Hot water and steam coils are available in 1 or 2 row
congurations with multiple dierent face areas to
meet job requirements.
Chilled Water Coils
Chilled water coils are constructed of copper tubing
mechanically expanded to bond with the aluminum
ns. Tube sheets are constructed of 16 GA galvanized
steel and extruded holes for the copper tubing. All
headers are constructed of heavy wall copper tubing
Staged or VFD Driven Variable Speed
Scroll Compressor
Oil-Free Magnetic Bearing Variable Capacity
Centrifugal Turbocor
Compressor
AAON Environmentally Friendly HVAC Product Family
Custom & Cataloged
Air Handling Units
(800-200,000+ cfm)
Condensers & Condensing Units
(2-230 tons)
Heating and Cooling for...
Auditoriums
Chillers (Air-Cooled &
Evaporative-Cooled)
(4-540 tons)
Rooftop Units
(2-240 tons)
Outdoor Equipment Rooms
(Chillers, Boilers & Pumps)
Self-Contained Units
(3-70 tons)
Residential Systems
(2-5 tons)
Convenience Stores
Health Clubs
Healthcare Facilities
Homes
Lodgings
Manufacturing
Museums & Libraries
Natatoriums
Ofce Buildings
Restaurants
Retail Stores
Schools
Supermarkets
Geothermal & WSHP Units
(2-230 tons)
Air-Source Heat Pumps
(2-230 tons)
Heating and Cooling Coils
(Booster, Hydronic, & DX)
Dening Quality. Building Comfort.
2425 S. Yukon Ave.
Tulsa, OK 74107-2728
www.AAON.com
Fluid Coolers
(50-450 tons)
It is the intent of AAON to provide accurate and current product information. However, in the interest of product improvement, AAON reserves the right to change
pricing, specications, and/or design of its product without notice, obligation, or liability. Copyright © AAON, all rights reserved throughout the world. AAON® and
AAONAIRE® are registered trademarks of AAON, Inc., Tulsa, OK.
RZ • V62360 • 151008
Loading...