AAON RN Series Owner's manual

RN Series
E Cabinet
Packaged Rooftop Units
& 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.
A copy of this IOM must be kept
with the unit.
WARNING

3
Table of Contents
AAON®RN Series E Cabinet Features and Options Introduction................................................. 6
Safety .............................................................................................................................................. 7
RN Series E Cabinet Feature String Nomenclature................................................................ 13
General Information...................................................................................................................... 23
Codes and Ordinances............................................................................................................ 24
Receiving Unit.......................................................................................................................... 24
Storage ...................................................................................................................................... 25
Wiring Diagrams....................................................................................................................... 25
Installation..................................................................................................................................... 25
Locating Units........................................................................................................................... 25
Setting the Curb........................................................................................................................ 26
Lifting the Unit ......................................................................................................................... 27
Duct Connection....................................................................................................................... 28
Outside Air Rain Hood............................................................................................................. 29
End Flashing Installation .......................................................................................................... 29
Electrical................................................................................................................................... 30
Variable Speed Compressors................................................................................................ 32
Thermostat Control Wiring................................................................................................... 32
Condensate Drain Piping.......................................................................................................... 33
Draw-Through Coils................................................................................................................. 34
Startup........................................................................................................................................... 35
Filters........................................................................................................................................ 35
Supply Fans............................................................................................................................... 35
Adjusting Refrigerant Charge................................................................................................... 36
Checking Liquid Sub-Cooling.............................................................................................. 36
Checking Evaporator Superheat............................................................................................ 36
Adjusting Sub-cooling and Superheat Temperatures............................................................ 37
Freeze Stat Startup.................................................................................................................... 38
Condenser Fan Electronically Commutated Motor (ECM) Startup ......................................... 40
VFD Controlled Condenser Fan Startup................................................................................... 40
Operation....................................................................................................................................... 41
Thermostat Operation ............................................................................................................... 41
Packaged DX Cooling Operation and Control ......................................................................... 41
Gas Heater Operation................................................................................................................ 41
Electric Heating Operation ....................................................................................................... 42
Steam or Hot Water Preheating and Heating Operation........................................................... 42
Chilled Water or Non-Compressorized DX Cooling Operation............................................... 42
Maintenance.................................................................................................................................. 42
Supply Fans............................................................................................................................... 42
DX Cooling............................................................................................................................... 42
Condensate Drain Pans............................................................................................................. 42
Brazed Plate Heat Exchanger Cleaning.................................................................................... 43
E-Coated Coil Cleaning............................................................................................................ 43
Microchannel Coil Cleaning..................................................................................................... 44
Options.......................................................................................................................................... 46

4
Heating Coils ............................................................................................................................ 46
Chilled Water Coil.................................................................................................................... 47
Packaged Direct Expansion (DX) Units................................................................................... 48
Evaporator Coil......................................................................................................................... 49
Condenser Fans......................................................................................................................... 50
Suction Filter............................................................................................................................. 51
Suction Filter Removal Instructions ..................................................................................... 51
Energy Recovery Units............................................................................................................. 52
Aluminum Energy Recovery Wheel..................................................................................... 52
Polymer Energy Recovery Wheel......................................................................................... 55
Energy Recovery Wheel General Cleaning .......................................................................... 62
Energy Recovery Wheel Defrost Timer Setting .................................................................. 64
Gas or Electric Heating............................................................................................................. 64
Gas Heating............................................................................................................................... 65
Piping Sizing Examples........................................................................................................ 66
Inlet and Manifold Pressures ................................................................................................ 67
Gas Pressure Regulator & Overpressure Protection Device................................................. 67
Piping Supports..................................................................................................................... 67
Additional Gas Piping Considerations.................................................................................. 67
Leak Testing.......................................................................................................................... 70
Gas Heater Operating Instructions........................................................................................ 71
Gas Heating Maintenance..................................................................................................... 72
Gas Heat Exchanger Removal .............................................................................................. 72
Phase and Brownout Protection Module .................................................................................. 74
Filter Replacement.................................................................................................................... 76
Replacement Parts..................................................................................................................... 78
Appendix A - Heat Exchanger Corrosion Resistance................................................................... 79
Appendix B - Thermistor Temperature vs. Resistance Values..................................................... 81
RN Series E Cabinet Startup Form............................................................................................... 82
Maintenance Log .......................................................................................................................... 86
Maintenance Log (E-Coated Coil)................................................................................................ 87
Literature Change History............................................................................................................. 88
Index of Tables and Figures
Tables:
Table 1 - RN Series E Cabinet Unit Clearances........................................................................... 26
Table 2 - Nameplate Voltage Markings & Tolerances................................................................. 30
Table 3 - RN Series E Cabinet Variable Speed Compressor VFD Frequency Range.................. 32
Table 4 - Control Wiring............................................................................................................... 33
Table 5 - Draw-Through Drain Trap Dimensions ........................................................................ 34
Table 6 - Plenum Fan Set Screw Specifications........................................................................... 35
Table 7 - Acceptable Fin & Tube Air-Cooled Condenser Coil Refrigeration Circuit Values...... 37
Table 8 - Acceptable Microchannel Air-Cooled Condenser Coil Liquid Sub-Cooling Values ... 37
Table 9 - R-410A and R-22 Refrigerant Temperature-Pressure Chart......................................... 39
Table 10 - ECM Condenser Fan Cycling Options........................................................................ 40
Table 11 - Hot Water Coil & Steam Coil Connection Sizes......................................................... 47

5
Table 12 - Preheat Hot Water Coil Connection Sizes................................................................... 47
Table 13 - Preheat Steam Coil Connection Sizes ......................................................................... 47
Table 14 - Chilled Water Coil Connection Sizes.......................................................................... 47
Table 15 - Energy Recovery Wheel Cleaning Frequency ............................................................ 62
Table 16 - Electric and Gas Heating Capacities ........................................................................... 65
Table 17 - 55, 65 and 75-140 ton Gas Connections...................................................................... 65
Table 18 - Natural Gas (ft3/hr) Maximum Piping Capacities ....................................................... 66
Table 19 - Propane (kBtu/hr) Maximum Piping Capacities ......................................................... 66
Table 20 - Gas Piping Supports.................................................................................................... 67
Table 21 - 55, 65, and 75 ton Pre Filters....................................................................................... 76
Table 22 - 90-140 ton Pre Filters.................................................................................................. 76
Table 23 - 55, 65, and 75 ton Unit Filters..................................................................................... 77
Table 24 - 90-140 ton Unit Filters ................................................................................................ 77
Table 25 - 55, 65, and 75-140 ton Exhaust Filters........................................................................ 77
Figures:
Figure 1 - Lockable Handle .......................................................................................................... 25
Figure 2 - RN Series E Cabinet,.................................................................................................... 26
Figure 3 - Lifting Details of a 55, 65 and 75-140 ton Unit........................................................... 27
Figure 4 - Duct Connection........................................................................................................... 28
Figure 5 - 55-140 ton .................................................................................................................... 29
Figure 6 - Factory Supplied End Flashings................................................................................... 29
Figure 7 - Unit Utility Entry ......................................................................................................... 31
Figure 8 - Back View of Utility Entry and Power Switch from Control Compartment (55, 65 and
75-140 ton Units).......................................................................................................................... 31
Figure 9 - Draw-Through Drain Trap........................................................................................... 34
Figure 10 - Plenum Fan Gap Tolerances ...................................................................................... 35
Figure 11 - Evaporator Coil Access.............................................................................................. 49
Figure 12 - Removal of a Condenser Fan Assembly.................................................................... 50
Figure 13 - RPE-48-BD filter element.......................................................................................... 51
Figure 14 - Aluminum Energy Recovery Wheel.......................................................................... 52
Figure 15 - Aluminum ERW Purge Sector Location.................................................................... 53
Figure 16 - Polymer Energy Recovery Wheel.............................................................................. 55
Figure 17 - Wheel Segment Removal Pattern............................................................................... 59
Figure 18 - Defrost Timer............................................................................................................. 64
Figure 19 - Temperature Dial ....................................................................................................... 64
Figure 20 - RN Series E Cabinet Gas Heat Exchanger................................................................. 66
Figure 21 - Example 55, 65 and 75-140 ton for across the Roof Gas Piping............................... 69
Figure 22 - Gas Heater Instructions.............................................................................................. 71
Figure 23 - Gas Heat Exchanger................................................................................................... 73
Figure 24 - RN Series E Cabinet Standard Filter Layouts............................................................ 78
G088500 · Rev. A · 210513

6
AAON®RN Series E Cabinet Features and Options Introduction
Energy Efficiency
Direct Drive Backward Curved Plenum
Supply Fans
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/Return/Exhaust
Fans
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 Speed Compressors
Factory Installed AAONAIRE Total
Energy Recovery Wheels
Mixed/Return Air Bypass
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
Safety Continued
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
Environmentally Friendly
Airside Economizers
Factory Installed AAONAIRE Energy
Recovery Wheels
Mixed/Return Air Bypass
R-410A Refrigerant
Extended Life
5 Year Compressor Warranty
15 Year Aluminized Steel Heat
Exchanger Warranty
25 Year Stainless Steel Heat Exchanger
Warranty
Condenser Coil Guards
Interior Corrosion Protection
Coil Polymer E-Coating - 5 Year Coating
Warranty
Stainless Steel Coil Casing
Stainless Steel Drain Pans

7
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 mayresult 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

8
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
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 shall
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
Unit power supply wire must be only
copper or aluminum.
CAUTION
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

9
GROUNDING REQUIRED
All field installed wiring must be
completed by qualified personnel.
Field installed wiringmust 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
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 the 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
motor’s FLA rating as shown on the
motor nameplate.
CAUTION
UNIT HANDLING
To prevent injury or death lifting
equipment capacity shall 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

10
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
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
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
Door compartments containing
hazardous voltage or rotating parts
are equipped with 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

11
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. 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.
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
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 the 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
WARNING

12
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.

13
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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
MODEL OPTIONS
SERIES AND GENERATION
RN
MAJOR REVISION
A
UNIT SIZE
055 = 55 ton Capacity
065 = 65 ton Capacity
075 = 75 ton Capacity
090 = 90 ton Capacity
105 = 105 ton Capacity
120 = 120 ton Capacity
130 = 130 ton Capacity
140 = 140 ton Capacity
SERIES
E = 55-140 ton units
MINOR REVISION
0
VOLTAGE
2 = 230V/3Φ/60Hz
3 = 460V/3Φ/60Hz
4 = 575V/3Φ/60Hz
8 = 208V/3Φ/60Hz
Model Option A: COOLING/HEAT PUMP
A1: COMPRESSOR STYLE
0 = No Compressor
C = R-410A Variable Speed Scroll Compressor
A2: CONDENSER STYLE
0 = No Condenser
A = Microchannel Air-Cooled Condenser
A3: INDOOR COIL CONFIGURATION
0 = No Cooling Coil
A = Standard 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 Cooling Coil Casing + Polymer
E-Coated Cooling Coil
E = Polymer E-Coated Cond. Coil
J = Polymer E-Coated Evap. And Cond. Coil
T = Stainless Steel Cooling Coil Casing + Polymer E-
Coated Evap. And Cond. Coil
A5: COOLING STAGING
0 = No Cooling
A = Full Face Variable Capacity + Tandem On/Off
Refrigeration Systems
F = Single Serpentine 8 FPI
G = Half Serpentine 8 FPI
H = Single Serpentine 10 FPI
J = Half Serpentine 10 FPI
K = Single Serpentine 12 FPI
L = Half Serpentine 12 FPI

14
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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
Model Option B: HEATING
B1: HEAT TYPE
0 = No Heat
A = Electric Heat
C = Natural Gas
F = LP Gas
J = Hot Water Coil
L = Steam Distributing Coil
B2: HEAT CONSTRUCTION
0 = Standard
B = Stainless Steel Heat Exchanger
D = High Altitude Stainless Steel Heat Exchanger
G = Polymer E-Coated Heating Coil
B3: HEAT DESIGNATION
0 = No Heat
1 = Heat 1
2 = Heat 2
3 = Heat 3
4 = Heat 4
5 = Heat 5
6 = Heat 6
7 = Heat 7
A = 1 Row
E = 2 Row
B4: HEAT STAGING
0 = No Heat
B = 2 Stage
C = 3 Stage
D = 4 Stage
E = 5 Stage
F = 6 Stage
K = Modulating Gas Heat Temp Control
L = High Turndown Modulating Gas Heat –
Temperature Control
M = Modulating SCR with Temperature Control
N = Modulating SCR with External 0-10 VDC
P = Single Serpentine 8 FPI
Q = Half Serpentine 8 FPI
B4: HEAT STAGING Continued
R = Single Serpentine 10 FPI
S = Half Serpentine 10 FPI
T = Single Serpentine 12 FPI
U = Half Serpentine 12 FPI
B5: HEAT PUMP AUX HEATING
0 = No Heat Pump
1: UNIT ORIENTATION
A = Draw Through Compact Supply Fan, End
Compressor Compartment, Both Side Access
D = Draw Through Compact Supply Fan, Non-
Compressorized, End Control Panel, Both Side
Access
2: SUPPLY & RETURN LOCATIONS
0 = Bottom Supply--Bottom Return
A = Bottom Supply--No Return
Feature 3: SUPPLY FAN OPTIONS
3A: SUPPLY FAN QUANTITY
0 = 1 Fan
A = 2 Fans
3B: SUPPLY FAN CONFIGURATION
0 = No VFDs + Full Width Fan
A = 1 Fan per VFD + Full Width Fan
B = 2 Fans per VFD + Full Width Fan
E = No VFDs + Narrow Width Fan
F = 1 Fan per VFD + Narrow Width Fan
G = 2 Fans per VFD + Narrow Width Fan
K = Option 0 + Inlet Backdraft Dampers
L = Option A + Inlet Backdraft Dampers
M = Option B + Inlet Backdraft Dampers
Q = Option E + Inlet Backdraft Dampers
R = Option F + Inlet Backdraft Dampers
S = Option G + Inlet Backdraft Dampers

15
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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
3C: SUPPLY FAN SIZE
0 = 13.5” Direct Drive Backward Curved Plenum
Aluminum
F = 24” Direct Drive Backward Curved Plenum
Aluminum
G = 27” Direct Drive Backward Curved Plenum
Aluminum
H = 30” Direct Drive Backward Curved Plenum
Aluminum
J = 30” Direct Drive Backward Curved Plenum Steel
K = 33” Direct Drive Backward Curved Plenum Steel
L = 36.5” Direct Drive Backward Curved Plenum
Aluminum
M = 42.5” Direct Drive Backward Curved Plenum
Aluminum
3D: SUPPLY FAN MOTOR TYPE
0 = High Efficiency Open Motor
(1170 nominal rpm)
A = High Efficiency Open Motor
(1760 nominal rpm)
K = High Efficiency Totally Enclosed Motor
(1170 nominal rpm)
L = High Efficiency Totally Enclosed Motor
(1760 nominal rpm)
3E: SUPPLY FAN MOTOR SIZE
0 = 0.25 hp
A = 0.33 hp
B = 0.5 hp
C = 0.75 hp
D = 1 hp
E = 1.5 hp
F = 2 hp
G = 3 hp
H = 5 hp
J = 7.5 hp
K = 10 hp
L = 15 hp
M = 20 hp
N = 25 hp
P = 30 hp
Q = 40 hp
3E: SUPPLY FAN MOTOR SIZE Continued
R = 50 hp
S = 60 hp
T = 75 hp
Feature 4: RETURN/OUTSIDE AIR
OPTIONS
4A: OUTSIDE AIR SECTION
0 = 100% Outside Air
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
E = Economizer
G = Econ + Power Exhaust (Plenum Fans)
J = Econ + Power Return (Plenum Fans)
Q = Econ + Energy Recovery + Bypass Damper
4B: ENERGY RECOVERY TYPE
0 = No Energy Recovery
A = Polymer Energy Recovery Wheel
B = Polymer Energy Recovery Wheel + 1% Purge
C = Aluminum Energy Recovery Wheel
D = Aluminum Energy Recovery Wheel + 1% Purge
4C: ENERGY RECOVERY SIZE
0 = No Energy Recovery
A = Low CFM Enthalpy
B = High CFM Enthalpy
E = Low CFM Sensible
F = High CFM Sensible
J = Low CFM Enthalpy + Exhaust Filters
K = High CFM Enthalpy + Exhaust Filters
N = Low CFM Sensible + Exhaust Filters
P = High CFM Sensible + Exhaust Filters

16
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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 = No Return Fan
A = 1 Fan
B = 2 Fans
5B: RETURN FAN CONFIGURATION
0 = No Return Fan
A = No VFDs + Full Width Fan
B = 1 Fan per VFD + Full Width Fan
C = 2 Fans per VFD + Full Width Fan
F = No VFDs + Narrow Width Fan
G = 1 Fan per VFD + Narrow Width Fan
H = 2 Fans per VFD + Narrow Width Fan
L = Option A + Inlet Backdraft Dampers
M = Option B + Inlet Backdraft Dampers
N = Option C + Inlet Backdraft Dampers
R = Option F + Inlet Backdraft Dampers
S = Option G + Inlet Backdraft Dampers
T = Option H + Inlet Backdraft Dampers
5C: RETURN FAN SIZE
0 = No Return Fan
M = 24” Direct Drive Backward Curved Plenum
Aluminum
N = 27” Direct Drive Backward Curved Plenum
Aluminum
P = 30” Direct Drive Backward Curved Plenum
Aluminum
Q = 30” Direct Drive Backward Curved Plenum Steel
R = 33” Direct Drive Backward Curved Plenum Steel
S = 36.5” Direct Drive Backward Curved Plenum
Aluminum
5D: RETURN FAN MOTOR TYPE
0 = No Return Fan
A = High Efficiency Open Motor
(1170 nominal rpm)
B = High Efficiency Open Motor
(1760 nominal rpm)
L = High Efficiency Totally Enclosed Motor
(1170 nominal rpm)
M = High Efficiency Totally Enclosed Motor
(1760 nominal rpm)
5E: RETURN MOTOR SIZE
0 = No Return Fan
A = 0.25 hp
B = 0.33 hp
C = 0.5 hp
D = 0.75hp
E = 1 hp
F = 1.5 hp
G = 2 ph
H = 3 hp
J = 5 hp
K = 7.5 hp
L = 10 hp
M = 15 hp
N = 20 hp
P = 25 hp
Q = 30 hp
R = 40 hp
S = 50 hp
T = 60 hp
U = 75 hp

17
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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 6: EXHAUST FAN OPTIONS
6A: EXHAUST FAN QUANTITY
0 = No Exhaust Fan
A = 1 Fan
B = 2 Fans
6B: EXHAUST FAN CONFIGURATION
0 = No Exhaust Fan
A = No VFDs + Full Width Fan
B = 1 Fan per VFD + Full Width Fan
C = 2 Fans per VFD + Full Width Fan
F = No VFDs + Narrow Width Fan
G = 1 Fan per VFD + Narrow Width Fan
H = 2 Fans per VFD + Narrow Width Fan
L = Option A + Inlet Backdraft Dampers
M = Option B + Inlet Backdraft Dampers
N = Option C + Inlet Backdraft Dampers
R = Option F + Inlet Backdraft Dampers
S = Option G + Inlet Backdraft Dampers
T = Option H + Inlet Backdraft Dampers
6C: EXHAUST FAN SIZE
0 = No Exhaust Fan
M = 24” Direct Drive Backward Curved Plenum
Aluminum
N = 27” Direct Drive Backward Curved Plenum
Aluminum
P = 30” Direct Drive Backward Curved Plenum
Aluminum
Q = 30” Direct Drive Backward Curved Plenum Steel
R = 33” Direct Drive Backward Curved Plenum Steel
S = 36.5” Direct Drive Backward Curved Plenum
Aluminum
T = 42.5” Direct Drive Backward Curved Plenum
Aluminum
6D: EXHAUST FAN MOTOR TYPE
0 = No Exhaust Fan
A = High Efficiency Open Motor
(1170 nominal rpm)
B = High Efficiency Open Motor
(1760 nominal rpm)
L = High Efficiency Totally Enclosed Motor
(1170 nominal rpm)
M = High Efficiency Totally Enclosed Motor
(1760 nominal rpm)
6E: EXHAUST MOTOR SIZE
0 = No Return Fan
A = 0.25 hp
B = 0.33 hp
C = 0.5 hp
D = 0.75hp
E = 1 hp
F = 1.5 hp
G = 2 ph
H = 3 hp
J = 5 hp
K = 7.5 hp
L = 10 hp
M = 15 hp
N = 20 hp
P = 25 hp
Q = 30 hp
R = 40 hp
S = 50 hp
T = 60 hp
U = 75 hp

18
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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
7: O/A CONTROL
0 = Standard (No Actuator)
C = Fully Modulating Actuator - Sensible Limit
D = Fully Modulating Actuator - Enthalpy Limit
E = DDC Actuator
P = Option C + CO2 Override
Q = Option D + CO2 Override
R = Option E + CO2 Override
U = 2 Position Actuator
V = Fault Detection and Diagnostics Controller
(FDD) Sensible Limit
W = FDD Enthalpy Limit
Y = Option V + CO2 Override
Z = Option W + CO2 Override
8: RETURN & EXHAUST OPTIONS
0 = No Return Opening
A = Standard Return Opening without EA Dampers
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 = 2" Pleated MERV 8 + 4" Pleated MERV 11
C = 2" Pleated MERV 8 + 4" Pleated MERV 13
D = 2" Pleated MERV 8 + 4" Pleated MERV 14
9B: UNIT FILTER BOX SIZE/LOCATION
0 = Standard Filters in Standard Position
B = High Eff Filters in Standard Position
9C: FINAL FILTER TYPE
0 = No Final Filters
9D: FILTER OPTIONS
0 = None
A = Clogged Filter Switch - Unit Filters
E = Magnehelic Gauge - Unit Filters
J = CFS + Magnehelic Gauge - Unit Filters
Feature 10: REFRIGERATION CONTROL
10A: REFRIGERATION CONTROL
0 = None
E = Freeze Stats (each circuit)
10B: BLANK
0 = None
Feature 11: REFRIGERATION OPTIONS
11A: REFRIGERATION OPTIONS
0 = None
D = Hot Gas Bypass Non-Variable Compressor
Circuits (HGBNV)
M = HGBNV + Parallel Modulating Hot Gas Reheat
-Lag Circuit
W = HGBNV + Parallel Modulating Hot Gas Reheat
-Lag Circuit - Polymer E-Coated
11B: BLANK
0 = None
12: REFRIGERATION ACCESSORIES
0 = None
B = Compressor Isolation Valves
C = Sight Glass + Option B
Feature 13: POWER OPTIONS
13A: UNIT DISCONNECT TYPE
0 = Single Point Power - Standard Power Block
A = Single Point Power - Non-fused Disconnect
Power Switch
B = Single Point Power - Circuit Breaker

19
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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
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
W = 300 amps
Y = 350 amps
Z = 400 amps
1 = 450 amps
2 = 500 amps
3 = 600 amps
5 = 800 amps
7 = 1200 amps
13C: BLANK
0 = None
14: SAFETY OPTIONS
0 = None
A = RA & SA Firestat
B = RA Smoke Detector
C = SA Smoke Detector
E = Remote Safety Shutdown Terminals
F = Option A + B
G = Option A + C
J = Option A + E
K = Option B + C
M = Option B + E
P = Option C + E
R = Option A + B + C
T = Option A + B + E
V = Option A + C + E
Z = Option B + C + E
4 = Option A + B + C + E
15: ACCESSORIES
0 = None
A = Low Limit Control
B = Phase & Brown Out Protection
C = Cooling Coil UV Lights
E = Compressor Sound Blankets
F = Option A + B
G = Option A + C
J = Option A + E
K = Option B + C
M = Option B + E
P = Option C + E
R = Option A + B + C
T = Option A + B + E
V = Option A + C + E
Z = Option B + C + E
4 = Option A + B + C + E

20
RN Series E Cabinet 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
RN
A
-
105
-
E
-
0
-
3
-
C
A
A
0
A
-
0
0
0
0
0
:
A
0
-
A
A
M
0
L
-
B
0
0
-
0
0
0
0
0
-
0
0
0
0
0
-
0
A
-
0
0
0
0
-
0
0
-
0
0
-
B
-
0
0
0
-
0
0
-
B
A
0
B
-
0
0
-
0
0
0
-
A
0
0
0
0
0
-
E
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 16: UNIT CONTROLS
16A: CONTROL SEQUENCE
0 = Standard Terminal Block for Thermostat
A = Terminal Block for Thermostat + Isolation
Relays
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
M = Field Installed DDC Controls by Others
N = Field Installed DDC Controls + Isolation Relays
P = Factory Installed DDC Controls by Others +
Isolation Relays
16B: CONTROL SUPPLIER
0 = None
A = AAON Controls
C = AAON Controls Supervisory
16C: CONTROL SUPPLIER OPTIONS
0 = None
16D: BMS CONNECTION & DIAGNOSTICS
0 = None
B = BACnet MSTP
K = BACnet MSTP with Diagnostics
Feature 17: PREHEAT OPTIONS
17A: PREHEAT CONFIGURATION
0 = Standard - None
D = Hot Water Preheat Coil - Mixed Air
E = Steam Distributing Preheat Coil - Mixed Air
17B: PREHEAT SIZING
0 = Standard - None
A = 1 Row Single Serpentine 8 fpi
B = 1 Row Single Serpentine 10 fpi
C = 1 Row Single Serpentine 12 fpi
17B: PREHEAT SIZING Continued
D = 1 Row Half Serpentine 8 fpi
E = 1 Row Half Serpentine 10 fpi
F = 1 Row Half Serpentine 12 fpi
K = 2 Row Single Serpentine 8 fpi
L = 2 Row Single Serpentine 10 fpi
M = 2 Row Single Serpentine 12 fpi
N = 2 Row Half Serpentine 8 fpi
P = 2 Row Half Serpentine 10 fpi
Q = 2 Row Half Serpentine 12 fpi
Feature 18: OPTION BOXES
18A: BOX LOCATION
0 = None
5 = Empty Energy Recovery Wheel Option Box
18B: BOX SIZE
0 = None
W = Empty Energy Recovery Wheel Option Box
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 + Air Flow Measuring Station Size A
D = Option A + Air Flow Measuring Station Size B
E = Option A + Air Flow Measuring Station Size C
G = Option B + Air Flow Measuring Station Size A
H = Option B + Air Flow Measuring Station Size B
J = Option B + Air Flow Measuring Station Size C
20: CABINET OPTIONS
0 = None
B = SA & RA Burglar Bars
21: ACCESSORIES
0 = None