AAON RQ NextGen Series Owner's manual

RQ
NextGen
SERIES
Packaged Rooftop Units, Heat Pumps,
& Outdoor Air Handling Units
Installation, Operation,
& Maintenance
oDo not store gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance
oWHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not
use any phone in your building.
Leave the building immediately.
Immediately call your gas supplier from a
phone remote from the building. Follow the
gas supplier’s instructions.
If you cannot reach your gas supplier, call
the fire department.
oStartup and service must be performed by a
Factory Trained Service Technician.
WARNING
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings
exactly could result in serious
injury, death or property damage.
Be sure to read and understand
the installation, operation and
service instructions in this manual.
Improper installation, adjustment,
alteration, service or maintenance
can cause serious injury, death or
property damage.
Keep a copy of this IOM with the
unit.
WARNING
UL-60335

3
Table of Contents
AAON®RQ Series Features and Options Introduction.................................................................. 7
Safety .............................................................................................................................................. 8
RQ Series Unified Feature String Nomenclature .................................................................... 14
General Information...................................................................................................................... 22
Codes and Ordinances .............................................................................................................. 22
Receiving Unit .......................................................................................................................... 23
Storage ...................................................................................................................................... 24
Wiring Diagrams....................................................................................................................... 24
Installation..................................................................................................................................... 24
Unit Location ............................................................................................................................ 24
Setting the Curb ........................................................................................................................ 25
Forklifting the Unit ................................................................................................................... 27
Lifting the Unit ......................................................................................................................... 28
Vertical Duct Connection ......................................................................................................... 29
Seismic Curb Installation.......................................................................................................... 30
Horizontal Duct Connection ..................................................................................................... 32
Outside Air Rain Hood ............................................................................................................. 32
Metal Mesh Filters .................................................................................................................... 33
Electrical ................................................................................................................................... 34
Variable Speed Compressors ................................................................................................ 36
Thermostat Control Wiring................................................................................................... 37
Condensate Drain Piping .......................................................................................................... 37
Draw-Through Coils ................................................................................................................. 38
Non-Compressorized Liquid and Suction Line Piping............................................................. 39
Startup........................................................................................................................................... 41
Filters ........................................................................................................................................ 41
Supply Fan EC Motor Startup .................................................................................................. 42
Adjusting Refrigerant Charge................................................................................................... 43
Checking Liquid Sub-Cooling .............................................................................................. 43
Checking Evaporator Superheat............................................................................................ 44
Adjusting Sub-cooling and Superheat Temperatures............................................................ 45
Freeze Stat Startup .................................................................................................................... 50
Condenser Fan EC Motor Startup............................................................................................. 50
Adjustable Fan Cycling Switch Procedure ............................................................................... 51
Operation....................................................................................................................................... 53
Thermostat Operation ............................................................................................................... 53
Packaged DX Cooling Operation and Control ......................................................................... 53
Gas Heater Operation................................................................................................................ 53
Electric Heating Operation ....................................................................................................... 54
Steam or Hot Water Preheating and Heating Operation........................................................... 54
Modulating Electric Preheat ..................................................................................................... 54
Chilled Water or Non-Compressorized DX Cooling Operation............................................... 54
Maintenance.................................................................................................................................. 54
Supply Fan ................................................................................................................................ 54
DX Cooling............................................................................................................................... 55
Condensate Drain Pans ............................................................................................................. 55

4
E-Coated Coil Cleaning ............................................................................................................ 56
Microchannel Coil Cleaning..................................................................................................... 57
Options.......................................................................................................................................... 59
Heating Coils ............................................................................................................................ 59
Chilled Water Coil .................................................................................................................... 59
Packaged Direct Expansion (DX) Units ................................................................................... 60
Variable Capacity Compressor Controller................................................................................ 61
Evaporator Coil......................................................................................................................... 63
Condenser Fan .......................................................................................................................... 63
Refrigerant-to-Water Heat Exchanger ...................................................................................... 64
Water-Source Heat Pump Applications ................................................................................ 64
Open Loop Applications ....................................................................................................... 64
Freezing Water in the Heat Exchanger ................................................................................. 65
Water Piping ......................................................................................................................... 66
Energy Recovery Units............................................................................................................. 68
Energy Recovery Wheel General Cleaning .......................................................................... 71
Gas or Electric Heating............................................................................................................. 77
Electric Preheat ......................................................................................................................... 78
Status Display Screens .......................................................................................................... 78
System Setting Screens ......................................................................................................... 79
LED Flash Alarm Codes ....................................................................................................... 80
Operation............................................................................................................................... 81
Gas Heating............................................................................................................................... 81
Piping Sizing Examples ........................................................................................................ 83
Inlet and Manifold Pressures ................................................................................................ 83
Gas Pressure Regulator & Overpressure Protection Device................................................. 84
Piping Supports..................................................................................................................... 84
Additional Gas Piping Considerations.................................................................................. 84
Leak Testing ........................................................................................................................ 87
Gas Heater Operating Instructions........................................................................................ 88
Gas Heating Maintenance ..................................................................................................... 89
Gas Heat Exchanger Removal .............................................................................................. 90
Phase and Brownout Protection Module .................................................................................. 91
Filter Replacement .................................................................................................................... 93
Replacement Parts..................................................................................................................... 94
Appendix A - Heat Exchanger Corrosion Resistance................................................................... 97
Appendix B - Thermistor Temperature vs. Resistance Values..................................................... 99
RQ Series Startup Form .............................................................................................................. 100
Maintenance Log ........................................................................................................................ 104
Maintenance Log (E-Coated Coil).............................................................................................. 105
Literature Change History........................................................................................................... 106
G149150 · Rev. A · 231127

5
Index of Tables and Figures
Tables:
Table 1 - Unit Clearances ............................................................................................................. 24
Table 2 - Nameplate Voltage Markings & Tolerances ................................................................. 34
Table 3 – 35 KAIC Fuse Sizing.................................................................................................... 36
Table 4 – 65 KAIC Fuse Sizing.................................................................................................... 36
Table 5 - Single Circuited Variable Speed Compressor Frequency Range .................................. 37
Table 6 - Control Wiring............................................................................................................... 37
Table 7 - Draw-Through Drain Trap Dimensions (Metric).......................................................... 38
Table 8 - Draw-Through Drain Trap Dimensions (Imperial) ....................................................... 38
Table 9 - Acceptable Refrigeration Circuit Values (Metric) ........................................................ 44
Table 10 – Acceptable Refrigeration Circuit Values (Imperial)................................................... 44
Table 11 - Acceptable Microchannel Air-Cooled Condenser Coil Liquid Sub-Cooling Values
(Metric) ......................................................................................................................................... 44
Table 12 - Acceptable Microchannel Air-Cooled Condenser Coil Liquid Sub-Cooling Values
(Imperial) ...................................................................................................................................... 45
Table 13 - R-410A Refrigerant Temperature-Pressure Chart (Metric) ........................................ 46
Table 14 - R-410A Refrigerant Temperature-Pressure Chart (Imperial)...................................... 47
Table 15 - R-454B Refrigerant Temperature-Pressure Chart (Metric)......................................... 48
Table 16 - R-454B Refrigerant Temperature-Pressure Chart (Imperial)...................................... 49
Table 17 - EC Condenser Fan Cycling Options............................................................................ 50
Table 18 - Hot Water Coil Connection Sizes................................................................................ 59
Table 19 - Steam Coil Connection Sizes ...................................................................................... 59
Table 20 - Chilled Water Coil Connection Sizes.......................................................................... 60
Table 21 – Min and Max Water Pressures and Temps ................................................................. 60
Table 22 - Demand Signal vs. Compressor Capacity Modulation................................................ 62
Table 23 - Glycol Concentration Freezing Points......................................................................... 66
Table 24 - Condenser Water Connections .................................................................................... 66
Table 25 - Electric and Gas Heating Capacities ........................................................................... 77
Table 26 - Auxiliary Electric Heating Capacities......................................................................... 77
Table 27 - Stages of Electric Preheat ............................................................................................ 79
Table 28: 2-6 ton Gas Connections............................................................................................... 82
Table 29 – (Metric) Natural Gas Maximum Piping Capacities (m3/hr)....................................... 82
Table 30 – (Imperial) Natural Gas Maximum Piping Capacities (ft3/hr) .................................... 82
Table 31 – (Metric)Propane (kW) Maximum Piping Capacities................................................ 83
Table 32 – (Imperial)Propane (kBtu/hr) Maximum Piping Capacities ....................................... 83
Table 33 - Gas Piping Supports (Metric)...................................................................................... 84
Table 34 - Gas Piping Supports (Imperial)................................................................................... 84
Table 35 - RQ Series 2-6 ton Pre Filters....................................................................................... 93
Table 36 - RQ Series 2-6 ton Unit Filters ..................................................................................... 93
Table 37 - RQ Series 2-6 ton Energy Recovery Wheel Filters..................................................... 93

6
Figures:
Figure 1 - Lockable Handle .......................................................................................................... 23
Figure 2 - RQ Series Orientation .................................................................................................. 25
Figure 3 - RQ Cabinet Standard and Power Exhaust Gasket Locations....................................... 26
Figure 4 - Forklifting an RQ Series Unit from the Side ............................................................... 27
Figure 5 - Forklifting an RQ Series Unit from the Front.............................................................. 27
Figure 6 - Lifting Details of a 2-6 ton Standard or Power Exhaust Unit ...................................... 28
Figure 7 - Lifting Details of a 2-6 ton Energy Recovery Wheel Unit .......................................... 28
Figure 8 - Vertical Duct Connection............................................................................................. 29
Figure 9 - Solid Bottom Seismic Curb with Filters ...................................................................... 30
Figure 10 - Seismic Solid Bottom Curb without Filters Cross Section ........................................ 31
Figure 11 - Seismic Solid Bottom Curb without Filters Detail A................................................. 31
Figure 12 - Seismic Solid Bottom Curb without Filters Detail B................................................. 31
Figure 13 - Seismic Rigid Mount Curb Cross Section ................................................................. 32
Figure 14 - Horizontal duct connections....................................................................................... 32
Figure 15 - RQ Series unit Closed Rain Hood.............................................................................. 33
Figure 16 - RQ Series unit Open Rain Hood ................................................................................ 33
Figure 17 - Rain Hood with Metal Mesh Filter Rack Installation ................................................ 33
Figure 18 - Unit Base Utility Entry............................................................................................... 34
Figure 19 - Back View of Power Switch from Control Compartment ......................................... 35
Figure 20 - Draw-Through Drain Trap ......................................................................................... 38
Figure 20 - Post Corner Hole Location......................................................................................... 39
Figure 21 - Post Back Hole Location............................................................................................ 39
Figure 22 - Post Corner Hole Piping............................................................................................. 40
Figure 23 - Post Back Hole Piping ............................................................................................... 40
Figure 24 - PIN Connectors on EC Supply Fan Motor Electronics.............................................. 42
Figure 25 - 2-6 ton Supply Fan..................................................................................................... 55
Figure 26 - RQ Supply Fan Removal Bolts.................................................................................. 55
Figure 27 - RQ Supply Fan Removal Slide .................................................................................. 55
Figure 28 - Variable Capacity Compressor Controller ................................................................. 61
Figure 29 - Compressor Controller Flash Code Details................................................................ 62
Figure 30 - Evaporator Coil Access.............................................................................................. 63
Figure 31 - Removal of a Condenser Fan Assembly .................................................................... 64
Figure 32 - Preheat Controller ...................................................................................................... 78
Figure 33 - RQ Series Gas Heat Exchanger.................................................................................. 82
Figure 34 - Example 2-6 ton through the Base Gas Piping Note: RQ units will only contain one
Heat Exchanger............................................................................................................................. 86
Figure 35 - Gas Heater Instructions .............................................................................................. 88
Figure 36 - Gas Heat Exchanger................................................................................................... 90
Figure 37 - RQ Series 2-6 ton Standard Filter Layout.................................................................. 94

7
AAON®RQ Series Features and Options Introduction
Energy Efficiency
•Direct Drive Backward Curved Plenum
Supply Fans
•Two-Stage, Variable Capacity and
Variable Speed R-410A Scroll
Compressors
•Airside Economizers
•Factory Installed AAONAIRE®Energy
Recovery Wheels
•Double Wall Rigid Polyurethane Foam
Panel Construction, R-13 Insulation
•Modulating Natural Gas Heaters
•Modulating/SCR Electric Heaters
•Premium Efficiency Motors
•Variable Speed Supply/ Exhaust Fans
•Air-Source, Water-Source and
Geothermal Heat Pumps
Indoor Air Quality
•100% Outside Air
•Constant Volume Outside Air Control
•Economizer CO2Override
•High Efficiency Filtration
•Double Wall Rigid Polyurethane Foam
Panel Construction, R-13 Insulation
•Interior Corrosion Protection
Humidity Control
•High Capacity Cooling Coils
•Variable Capacity Compressors
•Factory Installed AAONAIRE Total
Energy Recovery Wheels
•Modulating Hot Gas Reheat
Safety
•Burglar Bars
•Freeze Stats
•Hot Water/Steam Preheat Coils
•Electric Preheat
•Phase and Brown Out Protection
•Supply/Return Smoke Detectors
•Supply/Return Firestats
Installation and Maintenance
•Clogged Filter Switch
•Color Coded Wiring Diagram
•Compressors in Isolated Compartment
•Compressor Isolation Valves
•Convenience Outlet
•Direct Drive Supply Fans
•Hinged Access Doors with Lockable
Handles
•Magnehelic Gauge
•Service Lights
•Sight Glass
System Integration
•Chilled Water Cooling Coils
•Controls by Others
•Electric/Natural Gas/LP Heating
•Hot Water/Steam Heating Coil
•Non-Compressorized DX Coils
•Water-Cooled Condensers
Environmentally Friendly
•Airside Economizers
•Factory Installed AAONAIRE Energy
Recovery Wheels
•R-410A Refrigerant
Extended Life
•5 Year Compressor Warranty
•15 Year Aluminized Steel Heat
Exchanger Warranty
•25 Year Stainless Steel Heat Exchanger
Warranty
•Interior Corrosion Protection
•Polymer E-Coated Coils - 5 Year Coating
Warranty
•Stainless Steel Coil Casing
•Stainless Steel Drain Pans

8
Safety
Attention must be paid to the following statements:
NOTE - Notes are intended to clarify the unit installation, operation and maintenance.
CAUTION - Caution statements are given to prevent actions that may result in equipment
damage, property damage, or personal injury.
WARNING - Warning statements are given to prevent actions that could result in
equipment damage, property damage, personal injury or death.
DANGER - Danger statements are given to prevent actions that will result in equipment
damage, property damage, severe personal injury or death.
ELECTRIC SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings
exactly could result in dangerous
operation, serious injury, death or
property damage.
Improper servicing could result in
dangerous operation, serious injury,
death or property damage.

Before servicing, disconnect all
electrical power to the furnace.
More than one disconnect may be
provided.
When servicing controls, label all
wires prior to disconnecting.
Reconnect wires correctly.
Verify proper operation after
servicing. Secure all doors with
key-lock or nut and bolt.
WARNING
WHAT TO DO IF YOU SMELL GAS
Do not try to turn on unit.
Shut off main gas supply.
Do not touch any electric switch.

Do not use any phone in the
building.
Never test for gas leaks with an
open flame.
Use a gas detection soap solution
and check all gas connections and
shut off valves.
CAUTION
Electric shock hazard. Before
servicing, shut off all electrical power
to the unit, including remote
disconnects, to avoid shock hazard or
injury from rotating parts. Follow
proper Lockout-Tagout procedures.
WARNING

9
FIRE, EXPLOSION OR CARBON
MONOXIDE POISONING HAZARD
Failure to replace proper controls
could result in fire,
explosion or
carbon monoxide poisoning. Failure to
follow safety warnings exactly could
result in serious injury, death or
property damage. Do not store or use
gasoline or other flammable vapors
and liquids in the vicinity of this
appliance.
WARNING
CARBON MONOXIDE POISONING
HAZARD
Failure to follow instructions could
result in severe personal injury or
death due to carbon-monoxide
poisoning, if combustion products
infiltrate into the building.
Check that all openings in the outside
wall around the vent (and air intake)
pipe(s) are sealed to prevent
infiltration of combustion products into
the building.
Check that furnance vent (and air
intake) terminal(s) are not obstructed
in any way during all seasons.
WARNING
ROTATING COMPONENTS
Unit contains fans with moving parts
that can cause serious injury. Do not
open door containing fans until the
power to the unit has been
disconnected and fan wheel has
stopped rotating.
WARNING
GROUNDING REQUIRED
All field installed wiring must be
completed by qualified personnel.
Field installed wiring must comply with
NEC/CEC, local and state electrical
code requirements. Failure to follow
code requirements could result in
serious injury or death. Provide proper
unit ground in accordance with these
code requirements.
WARNING
This appliance is not intended for use
by persons with reduced physical,
sensory or mental capabilities, or lack
of experience and knowledge, unless
they have been given supervision or
instruction concerning use of the
appliance by a person responsible for
their safety. Children must be
supervised around this appliance.
WARNING
In order to avoid a hazard due to
inadvertent resetting of the THERMAL
CUT-OUT, this appliance must not be
supplied through an external
switching device, such as a timer, or
connected to a circuit that is regularly
switched on and off by the utility.
CAUTION

10
During installation, testing, servicing
and troubleshooting of the equipment
it may be necessary to work with live
electrical components. Only a
qualified
licensed electrician or
individual properly trained in handling
live electrical components must
perform these tasks.
Standard NFPA-
70E, an OSHA
regulation requiring an Arc Flash
Boundary to be field established and
marked for identification of where
appropriate Personal Protective
Equipment (PPE) be worn, must be
followed.
WARNING
VARIABLE FREQUENCY DRIVES
Do not leave VFDs unattended in
hand mode or manual bypass.
Damage to personnel or equipment
can occur if left unattended. When in
hand mode or manual bypass mode
VFDs will not respond to controls or
alarms.
WARNING
Electric motor over-current protection
and overload protection may be a
function of th
e Variable Frequency
Drive to which the motors are wired.
Never defeat the VFD motor overload
feature. The overload ampere setting
must not exceed 115% of the electric
motors FLA rating as shown on the
motor nameplate.
CAUTION
UNIT HANDLING
To prevent injury or death lifting
equipment capacity must exceed unit
weight by an adequate safety factor.
Always test-lift unit not more than 24
inches high to verify proper center of
gravity lift point to avoid unit damage,
injury or death.
WARNING
Failure to properly drain and vent coils
when not in use during freezing
temperature may result in coil and
equipment damage.
CAUTION
Rotation must be checked
on all
MOTORS AND COMPRESSORS of 3
phase units at startup by a qualified
service technician. Scroll
compressors are directional and can
be damaged if rotated in the wrong
direction. Compressor rotation must
be checked using suction and
discharge gauges. Fan motor rotation
must be checked for proper operation.
Alterations must only be made at the
unit power connection
CAUTION
Do not use oxygen, acetylene or air in
place of refrigerant and dry nitrogen
for leak testing. A violent explosion
may result causing injury or death.
WARNING

11
WATER PRESSURE
Prior to connection of condensing
water supply, verify water pressure is
less than maximum pressure shown
on unit nameplate. To prevent injury
or death due to instantaneous release
of high pressure water, relief valves
must be field supplied on system
water piping.
WARNING
Always use a pressure regulator,
valves and gauges to control incoming
pressures when pressure testing a
system. Excessive pressure may
cause line ruptures, equipment
damage or an explosion which may
result in injury or death.
WARNING
To prevent damage to the unit, do not
use acidic chemical coil cleaners. Do
not use alkaline chemical coil cleaners
with a pH value greater than 8.5, after
mixing, without first using an
aluminum corrosion inhibitor in the
cleaning solution.
CAUTION
Do not clean DX refrigerant coils with
hot water or steam. The use of hot
water or steam on refrigerant coils will
cause high pressure inside the coil
tubing and damage to the coil.
CAUTION
Some chemical coil cleaning
compounds are caustic or toxic. Use
these substances only in accordance
with the manufacturer’s usage
instructions.
Failure to follow
instructions may result in equipment
damage, injury or death.
WARNING
Door compartments containing
hazardous voltage or rotating parts
are equipped wit
h door latches to
allow locks. Door latch are shipped
with nut and
bolts requiring tooled
access.
If you do not replace the
shipping hardware with a pad lock
always re-install the nut & bolt after
closing the door.
CAUTION
Cleaning the cooling tower or
condenser water loop with harsh
chemicals such as hydrochloric acid
(muriatic acid), chlorine or other
chlorides, can damage the refrigerant-
to-water heat exchanger. Care must
be taken to avoid allowing chemicals
to enter the refrigerant-to-water heat
exchanger. See Appendix A - Heat
Exchanger Corrosion Resistance for
more information.
CAUTION
Unit power supply wire must be only
copper or aluminum.
CAUTION

12
OPEN LOOP APPLICATIONS
Failure of the condenser as a result of
chemical corrosion is excluded from
coverage under AAON Inc. warranties
and the heat exchanger
manufacturer’s warranties.
WARNING
WATER FREEZING
Failure of the condenser due to
freezing will allow water to enter the
refrigerant circuit and will cause
extensive damage to the refrigerant
circuit components. Any damage to
the equipment as a result of water
freezing in the condenser is excluded
from coverage under AAON
warranties and t
he heat exchanger
manufacturer warranties.
WARNING
COMPRESSOR CYCLING
3 MINUTE MINIMUM OFF TIME
To prevent motor overheating
compressors must cycle off for a
minimum of 3 minutes.
5 MINUTE MINIMUM ON TIME
To maintain the proper oil level
compressors must cycle on for a
minimum of 5 minutes.
The cycle rate must not exceed 7
starts per hour.
WARNING
Units with VFD driven motors/
compressors have adjustable
overload settings. These are set by
the AAON factory for the protection of
these motors/compressors and must
not be adjusted over this factory
setpoint or bypassed.
WARNING
Disconnect power to the unit before
servicing UV-C lamps
CAUTION
Doors and panels with access to UV-
C lamps, with possible spectral
irradiance exceeding 1.7 μW/cm2 are
provided with an interlock switch. Do
not over-ride.
CAUTION
Do not operate UV-C lamps outside of
the unit.
WARNING
Units containing UV-
C Germicidal
lamps should not be operated with
damage to the cabinet of the unit. UV-
C radiation may, even in small doses,
cause harm to the eyes and skin.
WARNING

13
1. Startup and service must be performed by
a Factory Trained Service Technician.
2. Use only with type of the gas approved
for the furnace. Refer to the furnace rating
plate.
3. The unit is for outdoor use only. See
General Information section for more
information.
4. Provide adequate combustion ventilation
air to the furnace. If a vent duct extension
is used, a class III approved vent is
required. See the Locating Units and Gas
Heating sections of the Installation
section of the manual.
5. Always install and operate furnace within
the intended temperature rise range and
duct system external static pressure (ESP)
as specified on the unit nameplate.
6. The supply and return air ducts must be
derived from the same space. It is
recommended ducts be provided with
access panels to allow inspection for duct
tightness. When a down flow duct is used
with electric heat, the exhaust duct must
be an L shaped duct.
7. Clean furnace, duct and components
upon completion of the construction
setup. Verify furnace operating
conditions including input rate,
temperature rise and ESP.
8. Every unit has a unique equipment
nameplate with electrical, operational,
and unit clearance specifications. Always
refer to the unit nameplate for specific
ratings unique to the model you have
purchased.
9. READ THE ENTIRE INSTALLATION,
OPERATION AND MAINTENANCE
MANUAL. OTHER IMPORTANT
SAFETY PRECAUTIONS ARE
PROVIDED THROUGHOUT THIS
MANUAL.
10. Keep this manual and all literature
safeguarded near or on the unit.

14
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
-
030
-
C
-
0
-
3
-
C
A
B
0
A - 0 0 0 0 0 : 0 1 - 0 A G 0 K
-
E 0 0 - 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0 0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0 0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
BASE MODEL
SERIES AND GENERATION
RQ
MAJOR REVISION
A
UNIT SIZE
002 = 2 ton Capacity
003 = 3 ton Capacity
004 = 4 ton Capacity
005 = 5 ton Capacity
006 = 6 ton Capacity
SERIES
A Series
MINOR REVISION
0
VOLTAGE
1 = 230V/1Φ/60Hz
2 = 230V/3Φ/60Hz
3 = 460V/3Φ/60Hz
4 = 575V/3Φ/60Hz
6 = 380V/3Φ/50Hz
8 = 208V/3Φ/60Hz
9 = 208V/1Φ/60Hz
Model Option A: COOLING/HEAT
PUMP
A1: COMPRESSOR STYLE
0 = No Compressor
F = R-454B Two-Step Scroll Compressor
H = R-454B Variable Speed Scroll Compressor
G = R-454B Variable Capacity Scroll Compressor
A2: CONDENSER STYLE
0 = No Cooling
A = Standard Eff. Microchannel Air-Cooled
Condenser
B = High Eff. Microchannel Air-Cooled Condenser
E = Water-Cooled Condenser
J = Air-Source Heat Pump
J (when A1 = H) = Zero Degree Cold Climate Air-
Source Heat Pump
N = DX Air Handling Unit
A3: INDOOR COIL CONFIGURATION
0 = No Cooling Coil
A = Standard Row Eff. Evaporator
B = 6 Row Evaporator
E = 4 Row Chilled Water Coil
F = 6 Row Chilled Water Coil
A4: COOLING HEAT EXCHANGER
CONSTRUCTION
0 = Standard
A = Polymer E-Coated Cooling Coil
B = Stainless Steel Cooling Coil Casing
D = Stainless Steel Evap. Coil Casing + Polymer E-
Coated Evap. Coil
E = Polymer E-Coated Cond. Coil
J = Polymer E-Coated Evap. And Cond. Coil
T = Stainless Steel Evap. Coil Casing + Option E

15
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0
A
-
0
0
0
0
0
: 0 1 - 0 A G 0 K
-
E 0 0 - 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0 0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0 0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
A5: COOLING STAGING
0 = No Cooling
A = Variable Speed Comp
A (when A1 = G) = Modulating
F = Single Serpentine 8 fpi
G = Half Serpentine 8 fpi
K = Single Serpentine 12 fpi
L = Half Serpentine 12 fpi
1 = 1 Stage
2 = 2 Stage
Model Option B: HEATING
B1: HEATING TYPE
0 = No Heating
A = Electric Heat
C = Natural Gas
F = LP Gas
J = Hot Water Coil
L = Steam Distributing Coil
B2: HEAT CONSTRUCTION
0 = No Heating
A = Aluminized Heat Exchanger
B = Stainless Steel Heat Exchanger
G = Polymer E-Coated Heating Coil
H = 1 Row Coil
J = 2 Row Coil
B3: HEAT DESIGNATION
0 = No Heating
A = 1 Row
E = 2 Row
1 = Heat 1 – 10 kW; 60 Mbtu
2 = Heat 2 – 20 kW;
3 = Heat 3 – 30 kW; 100 Mbtu
4 = Heat 4 – 40 kW
5 = Heat 5 – 140 Mbtu
7 = Heat 7 – 160 Mbtu
B4: HEAT STAGING
A = 1 Stage
B = 2 Stage
C = 3 Stage
D = 4 Stage
K = Modulating Gas Heat – Temperature Control
L =High Turndown Modulating Gas Heat –
Temperature Control
M = Modulating SCR Electric with Potentiometer
Control
N = Modulating SCR Electric with External 0-10
VDC
P = Single Serpentine 8 fpi
Q = Half Serpentine 8 fpi
T = Single Serpentine 12 fpi
U = Half Serpentine 12 fpi
B5: HEAT PUMP AUXILIARY HEATING
0 = No Auxiliary
A = Aux Heat 1 for Heat Pump 1 Stage
B = Aux Heat 2 for Heat Pump 1 Stage
C = Aux Heat 3 for Heat Pump 1 Stage
D = Aux Heat 4 for Heat Pump 1 Stage
K = Aux Heat 1 for Heat Pump 2 Stage
L = Aux Heat 2 for Heat Pump 2 Stage
M = Aux Heat 3 for Heat Pump 2 Stage
N = Aux Heat 4 for Heat Pump 2 Stage

16
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0 A - 0 0 0 0
0
:
0
1
-
0
A
G
0
K
-
E
0
0
- 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0 0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0 0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
B5: HEAT PUMP AUXILIARY HEATING
(continued)
U = Aux Heat 1 for Heat Pump 4 Stage
V = Aux Heat 2 for Heat Pump 4 Stage
W = Aux Heat 3 for Heat Pump 4 Stage
Y = Aux Heat 4 for Heat Pump 4 Stage
Feature 1: UNIT ORIENTATION
0 = Standard Access - Hinged Access Doors with
Lockable Handles
2: SUPPLY & RETURN LOCATIONS
0 = Bottom Discharge and Return
G = Horizontal Discharge and Return
Feature 3: SUPPLY FAN OPTIONS
3A: SUPPLY FAN QUANTITY
0 = 1 Fan
3B: SUPPLY FAN CONFIGURATION
0 = No VFDs + Full Width Fan
A = 1 Fan per VFD + Full Width Fan
E = No VFDs + Narrow Width Fan
F = 1 Fan per VFD + Narrow Width Fan
3C: SUPPLY FAN SIZE
C = 18.5” Direct Drive Backward Curved Aluminum
D = 18.5” Direct Drive Backward Curved Aluminum
3D: SUPPLY FAN MOTOR TYPE
0 = High Efficiency Open Motor
(1200 nominal rpm)
A = High Efficiency Open Motor
(1800 nominal rpm)
C = Perm Magnet AC Open Motor (1200 nominal
rpm)
D = Perm Magnet AC Open Motor (1800 nominal
rpm)
F = ECM Motor (1200 nominal rpm)
G = ECM Motor (1800 nominal rpm)
3E: SUPPLY FAN MOTOR SIZE
0 = 1/4 HP
B = 1/2 HP
C = 3/4 HP
D = 1 HP
F = 2 HP
Z = 1/6 HP
Feature 4: RETURN AIR/OUTSIDE AIR
OPTIONS
4A: OUTSIDE AIR SECTION
0 = 100% Outside Air – No RA Opening
A = 100% Outside Air with Motorized Dampers
B = Manual Outside Air + Return Air Opening
C = Motorized Outside Air Dampers + Return Air
Opening
D = 100% Return Air (No O/A Opening)
E = Economizer
G = Economizer + Power Exhaust (Plenum Fans)
K = Economizer + Energy Recovery
Q = Economizer + Energy Recovery + Bypass
Damper
4B: ENERGY RECOVERY TYPE
0 = No Energy Recovery
A = Polymer Energy Recovery Wheel
E = Plate Exchanger
4C: ENERGY RECOVERY SIZE
0 = No Energy Recovery
A =Total + Low CFM
B = Total + High CFM
E = Sensible + Low CFM
F = Sensible + High CFM
K = Total + High CFM + Exhaust Filters
J = Total + Low CFM + Exhaust Filters
N = Sensible + Low CFM + Exhaust Filters
P = Sensible + High CFM + Exhaust Filters

17
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0 A - 0 0 0 0 0 : 0 1 - 0 A G 0 K
-
E 0 0 -
0
0
0
0
0
-
0
0
0
0
0
-
C
A
-
0
0
0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0 0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
Feature 5: RETURN FAN OPTIONS
5A: RETURN FAN QUANTITY
0 = 0 Return Fans
5B: RETURN FAN CONFIGURATION
0 = No Return Fans
5C: RETURN FAN SIZE
0 = No Return Fans
5D: RETURN FAN MOTOR TYPE
0 = No Return Fans
5E: RETURN MOTOR SIZE
0 = No Return Fans
Feature 6: EXHAUST FAN OPTIONS
6A: EXHAUST FAN QUANTITY
A = 1 Fan
B = 1 Fan per VFD + Full Width Fan
F = No VFDs + Narrow Width Fan
G = 1 Fan per VFD + Narrow Width Fan
6B: EXHAUST FAN CONFIGURATION
A = No VFDs + Full Width Fan
B = 1 Fan per VFD + Full Width Fan
6C: EXHAUST FAN SIZE
A = 16” Axial Fan
G = 10x8 Forward Curved Fan
H = 15” Backward Curved Plenum
K = 18.5 Backward Curved Plenum
6D: EXHAUST FAN MOTOR TYPE
G = ECM Motor (1200 nominal rpm)
H = ECM Motor (1800 nominal rpm)
J = ECM Motor (3600 nominal rpm)
6E: EXHAUST MOTOR SIZE
A = 1/4 HP
C = 1/2 HP
D = 3/4 HP
E = 1 HP
G = 2 HP
F = 1 1/2 HP
7: O/A CONTROL
E = DDC Actuator
R = Option E + CO2Override
U = 2 Position Actuator
V = Fault Detection and Diagnostics Controller
(FDD) Fully Modulating Actuator Sensible
Limit
W = FDD Fully Modulating Actuator Enthalpy Limit
Y = Option V + CO2Override
Z = Option W + CO2Override
8: RETURN & EXHAUST OPTIONS
0 = No Return Opening
A = Standard Return Opening without EA Opening
E = Standard Return Opening + Motorized EA
Dampers
Feature 9: FILTER OPTIONS
9A: UNIT FILTER TYPE
0 = 2” Pleated MERV 8
A = 4” Pleated MERV 8
B = 4” Pleated 65% Eff – MERV 11+ 2” Pleated
MERV 8
C = 4” Pleated 85% Eff – MERV 13+ 2” Pleated
MERV 8
B = 4” Pleated 95% Eff – MERV 14+ 2” Pleated
MERV 8
H = 2” Permanent Filter Frame + Replaceable Media
9B: UNIT FILTER BOX SIZE/LOCATION
0 = Standard Filters in Standard Position
B = High Efficiency Filters in Standard Position
M = Standard Filters + Lint Screen Pre-filter in
Standard Position

18
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0 A - 0 0 0 0 0 : 0 1 - 0 A G 0 K
-
E 0 0 - 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0
0
0
- 0
0 - 0 0 - 0 - 0 0 0
- 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0 0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
9C: FINAL FILTER TYPE
0 = No Final Filters
9D: FILTER OPTIONS
0 = None
A = Clogged Filter Switch - Unit Filters
B = Clogged Filter Switch - Unit + Energy Recovery
Filters
E = Magnehelic Gauge - Unit Filters
F = Magnehelic Gauge - Unit + Energy Recovery
Filters
J = Clogged Filter Switch + Magnehelic Gauge - Unit
Filters
K = Clogged Filter Switch + Magnehelic Gauge -
Unit + Energy Recovery Filters
Feature 10: REFRIGERATION CONTROL
10A: REFRIGERATION CONTROL
A = 5 Minute Compressor Off Timer and 20 Second
Compressor Stage Delay
D = Adjustable Compressor Lock Outs
E = Freeze Stats (each circuit)
P = Option D + E
10B: Refrigeration Control B
0 = None
Feature 11: REFRIGERATION OPTIONS
11A: REFRIGERATION OPTIONS
0 = None
E = Modulating Hot Gas Reheat
Q = Polymer E-Coated Modulating Hot Gas Reheat
11B: Refrigeration Options B
0 = Standard Packaged Unit
12: REFRIGERATION ACCESSORIES
0 = None
A = Sight Glass
B = Compressor Isolation Valves
C = Option A + B
D = One Circuit 0°F Low Ambient
Feature 13: POWER OPTIONS
13A: UNIT DISCONNECT TYPE
0 = Standard Power Block
A = Non-Fused Disconnect Power Switch
B = Circuit Breaker
13B: DISCONNECT 1 SIZE
0 = Power Block
A = 15 amps
B = 20 amps
C = 25 amps
D = 30 amps
E = 35 amps
F = 40 amps
G = 45 amps
H = 50 amps
J = 60 amps
K = 70 amps
L = 80 amps
M = 90 amps
N = 100 amps
P = 110 amps
Q = 125 amps
R = 150 amps
S = 175 amps
T = 200 amps
U = 225 amps
V = 250 amps
Z = 400 amps
3 = 600 Amps
13C: DISCONNECT 2 SIZE
0 = Standard - None

19
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0 A - 0 0 0 0 0 : 0 1 - 0 A G 0 K
-
E 0 0 - 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0 0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0
0 - B A 0 B - 0 0 - 0 0 0 - A 0 0
0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0 0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
14: SAFETY OPTIONS
0 = None
C = SA Smoke Detector
K = RA and SA Smoke Detector
F = RA and SA Firestat + RA Smoke Detector
G = RA and SA Firestat + SA Smoke Detector
R = RA and SA Aire Fire Stat + Option K
E = Remote Safety Shutdown Terminals
J = RA and SA Firestat + Option E
M = RA Smoke Detector + Option E
P = Option C + E
Z = Option K + E
T = Option F + E
V = Option G + E
4 = Option R + E
15: ELECTRICAL ACCESSORIES
0 = None
A = Low Limit Control
B = Phase & Brown Out Protection
F = Option A + B
E = Compressor Sound Blankets
Feature 16: UNIT CONTROLS
16A: CONTROL SEQUENCE
B = Single Zone VAV Unit Controller - VAV Cool +
CAV Heat
D = VAV Unit Controller - VAV Cool + CAV Heat
E = Constant Air Volume Unit Controller - CAV
Cool + CAV Heat
F = Makeup Air Unit Controller
H = Constant Air Volume Heat Pump Unit Controller
- CAV Cool + CAV Heat
16B: CONTROL SUPPLIER
0 = None
A = AAON Controls
16C: CONTROL SUPPLIER OPTIONS
0 = None
16D: BMS CONNECTION & DIAGNOSTICS
0 = None
B = BACnet MSTP
Feature 17: PREHEAT OPTIONS
17A: PREHEAT CONFIGURATION
0 = Standard - None
17B: PREHEAT SIZING
0 = Standard - None
Feature 18: OPTION BOXES
18A: BOX LOCATION
0 = None
18B: BOX SIZE
0 = None
18C: BOX ACCESSORIES
0 = None
19: OUTSIDE AIR ACCESSORIES
0 = No Outside Air Hood - 100% Return Air
A = Outside Air Hood
B = Outside Air Hood with Metal Mesh Filters
C = Option A + Outside Air Flow Measuring Station
Size A
G = Option B + Outside Air Flow Measuring Station
Size A (OA>190 cfm)
20: CABINET OPTIONS
0 = None
A = Base Insulation
B = SA & RA Burglar Bars
F = Option A + B
21: ACCESSORIES
0 = None

20
RQ Series Unified Feature String Nomenclature
GEN
MJREV
SIZE
SERIES
MNREV
VLT
A1
A2
A3
A4
A5
B1
B2
B3
B4
B5
1
2
3A
3B
3C
3D
3E
4A
4B
4C
5A
5B
5C
5D
5E
6A
6B
6C
6D
6E
7
8
9A
9B
9C
9D
RQ
A
- 030 - C - 0 - 3 - C A B 0 A - 0 0 0 0 0 : 0 1 - 0 A G 0 K
-
E 0 0 - 0 0 0 0 0 - 0 0 0 0 0 - C A - 0 0 0 0
- 0 0 - 0
0 - 0 - 0 0 0 - 0 0 - B A 0 B - 0 0 - 0 0 0 - A 0 0
0 0 0 - C 0 0 0 0 0 - 0 0 0 0 0
0 B
10A
10B
11A
11B
12
13A
13B
13C
14
15
16A
16B
16C
16D
17A
17B
18A
18B
18C
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
22: MAINTENANCE ACCESSORIES
0 = None
A = Factory Wired 115V Convenience Outlet
B = Field Wired 115V Convenience Outlet
C = Control Panel LED Service Lights
D = Remote Start/Stop Contacts
E = Supply Fan Auxiliary Contacts
G = Option A + D
P = Option D + E
S = Option A + D + E
V = Option B + D + E
23: CODE OPTIONS
0 = Standard - ETL U.S.A. Listing
B = ETL U.S.A. + Canada Listing
24: SHIPPING SPLITS
0 = Standard
C = Export Crating
K = Export Crating + No Condenser Section
25: AIR COOLED CONDENSER
ACESSORIES
0 = Standard
C = ECM Condenser Fan Head Pressure Control
G = Cond. Coil Screen + ECM Condenser Fan Head
Pressure Control
26: Evap-Colled Condenser Accessories
0 = Standard
27: WATER - COOLED CONDENSER
ACCESSORIES
0 = None
28: ENERGY RECOVERY WHEEL
ACCESSORIES
A = Energ Recovery Wheel Defrost - Start/Stop
B = Energy ecovery Wheel Rotation Detection
F = OptionA + B
29: VFD OPTIONS
0 = None
A = Shaft Grounding kit on all SA, RA, EA motors +
BACnet VFD on all Motors
30: MISCELLANEOUS OPTIONS
0 = Standard
A = Condensate Overflow Switch
B = SCCR (10kA)
C = High Unit SCCR (35kA)
D = High Unit SCCR (65kA)
F = Option A + B
G = Option A + C
H = Option A + D
31: BLANK
0 = Standard
32: BLANK
0 = Standard
33: BLANK
0 = Standard
34: BLANK
0 = Standard
35: WARRANTY
0 = Standard Warranty
A = 2 Year Parts Warranty
B = 5 Year Parts Warranty
C = 10 Year Parts Warranty