Through the years, Trane has designed
and developed the most complete line of
Packaged Rooftop products available in
the market today. Trane was the first to
introduce the Micro—microelectronic
unit controls—and has continued to
improve and revolutionalize this design
concept.
Electromechanical controls are available
for simpler applications, and for the
more sophisticated, ReliaTel™
microprocessor controls.
The ReliaTel control platform offers the
same great features and functionality as
the original Micro, with additional
benefits for greater application flexibility.
With its sleek compact cabinet, rounded
corners and beveled top Precedent
continues to provide the highest
standards in quality and reliability,
comfort, ease of service, and the
performance of Trane light commercial
products.
Trane customers demand products that
provide exceptional reliability, meet
stringent performance requirements,
and are competitively priced. Trane
delivers with Precedent.
Precedent features cutting edge
technologies: reliable compressors,
Trane engineered ReliaTel controls,
computer-aided run testing, and
Integrated Comfort™ Systems. So,
whether you’re the contractor, the
engineer, or the owner you can be
certain Precedent Products are built to
meet your needs.
Cooling Performance
Fan Performance
Heating Performance
Controls
Electric Power
Dimension and Weights
2
4
11
12
14
15
19
19
37
59
62
64
78
Mechanical Specifications
87
3RT-PRC005-EN
Features and
Benefits
Factory Installed Options
• Black Epoxy Pre-Coated Coils
• Dehumidification Option
• High Pressure Cutout
• Hinged Access Doors
• Novar Return Air Sensor
• Novar Unit Controls
• Phase Monitor
• Powered or Unpowered Convenience
Outlet
• Supply and/or Return Air Smoke
Detector
• Thermal Expansion Valve
• Through the Base Electrical Access
• Through the Base Electrical With Circuit
Breaker
• Through the Base Electrical With
Disconnect Switch
• Two-Inch Pleated Filters
Factory or Field Installed Options
• Clogged Filter/Fan Failure Switch
• Differential Pressure Switches
• Discharge Air Sensing Kit
• Economizer
• Electric Heaters
• Frostat
• LonTalk
• Oversized Motors
• Reference or Comparative Enthalpy
• Tool-less Hail Guards
• Trane Communications Interface (TCI)
®
Communications Interface
Field Installed Options
• CO
Sensing
2
• Digital Display Zone Sensor
• Dual Thermistor Remote Zone Sensor
• High Static Drive
• Humidity Sensor
• Manual Outside Air Damper
• Motorized Outside Air Dampers
• Powered Exhaust
• Remote Potentiometer
• Roof Curb
• Thermostat
• Ventilation Override Accessory
• Zone Sensor
4RT-PRC005-EN
Features and
Benefits
Easy to Install, Service and
Maintain
Because today’s owners are very costconscious when it comes to service and
maintenance, the Trane Precedent was
designed with direct input from service
contractors. This valuable information
helped to design a product that would get
the serviceman off the job quicker and
save the owner money. Precedent does
this by offering:
Quality and Reliability
ReliaTel™ Controls (LCI-R)
ReliaTel controls provide unit control for
heating, cooling and ventilating utilizing
input from sensors that measure outdoor
and indoor temperature.
Quality and Reliability are enhanced
through ReliaTel control and logic:
—prevents the unit from short cycling,
considerably improving
compressor life.
—ensures that the compressor will run
for a specific amount of time which
allows oil to return for better
lubrication, enhancing the reliability of
the compressor.
Precedent with ReliaTel reduces the
number of components required to
operate the unit, thereby reducing
possibilities for component failure.
ReliaTel Makes Installing and
Servicing Easy
ReliaTel eliminates the need for field
installed anti-shortcycle timer and time
delay relays. ReliaTel controls provide
these functions as an integral part of the
unit. The contractor no longer has to
purchase these controls as options and
pay to install them.
The wiring of the low voltage connections
to the unit and the zone sensors is as
easy as 1-1, 2-2, and 3-3. This simplified
system makes wiring easier for the
installer.
ReliaTel Makes Testing Easy
ReliaTel requires no special tools to run
the Precedent unit through its paces.
Simply place a jumper between Test 1
and Test 2 terminals on the Low Voltage
Terminal Board and the unit will walk
through its operational steps
automatically.
— The unit automatically returns
control to the zone sensor after
stepping through the test mode a
single time, even if the jumper is
left on the unit.
As long as the unit has power and the
“system on” LED is lit, ReliaTel is
operational. The light indicates that the
controls are functioning properly.
ReliaTel features expanded diagnostic
capabilities when utilized with Trane
Integrated Comfort™ Systems.
Some zone sensor options have central
control panel lights which indicate the
mode the unit is in and possible
diagnostic information (dirty filters for
example).
Other ReliaTel Benefits
The ReliaTel built-in anti-shortcycle timer,
time delay relay and minimum “on” time
control functions are factory tested to
assure proper operation.
ReliaTel softens electrical “spikes” by
staging on fans, compressors and
heaters.
Intelligent Fallback is a benefit to the
building occupant. If a component goes
astray, the unit will continue to operate at
predetermined temperature setpoint.
Intelligent Anticipation is a standard
ReliaTel feature. It functions continuously
as ReliaTel and zone sensor(s) work
together in harmony to provide much
tighter comfort control than conventional
electro-mechanical thermostats.
The same ReliaTel Board fits all
Precedent Packaged Gas/Electrics,
Cooling with Electric Heat, and Heat
Pump models. This provides
standardization of parts for contractors.
Less money is tied up in inventory with
ReliaTel.
Electromechanical Controls
For the simpler job that does not require
a building automation system, or
expanded diagnostics capabilities,
Precedent offers electromechnical
controls. This 24-volt control includes the
control transformer and contactor
pressure lugs for power wiring.
RT-PRC005-EN
ReliaTel™
5
Features and
Benefits
Outstanding Standard and
Optional Components
Black Epoxy Pre-Coated Coils
Provides corrosion protection to
condenser coils for seacoast application.
Cabinet Integrity
For added water integrity, Precedent has
a raised 11/8" lip around the supply and
return of the downflow units to prevent
water from blowing into the ductwork.
Clogged Filter/Fan Failure Switch
A dedicated differential pressure switch is
available to achieve active fan failure
indication and/or clogged filter indication.
These sensors allow a zone sensor
service light or Integrated Comfort
System to indicate a dirty filter or a fan
that’s not working. The field installation
charges for these valuable feedback
devices often eliminate them from
consideration. Factory installation can
make such features a good investment.
CO2 Sensing
The CO2 sensor has the ability to monitor
space occupancy levels within the
building by measuring the parts per
million of CO
As the CO2 levels increase, the outside air
damper modulates to meet the CO
space ventilation requirements. The CO
sensor kit is available as a field installed
accessory.
Colored And Numbered Wiring
Save time and money tracing wires and
diagnosing the unit.
(Carbon Dioxide) in the air.
2
2
2
Compressors
Precedent contains the best compressor
technology available to achieve the
highest possible performance. Our
compressor line includes Trane built
ClimaTuff
Condenser Coil
Precedent boasts a patent-pending
1+1+1 condenser coil, permanently
gapped for easy cleaning.
®
reciprocating and scrolls.
Dehumidification (Hot Gas Reheat)
Option
This option allows for increased outdoor
air ventilation. It reduces humidity levels
while increasing comfort level in the air
space. Cooling can operate without a
demand for dehumidification. The hot gas
reheat coil is designed to deliver
maximum reheat temperatures and
pivot to allow for easy access cleaning.
Digital Display Zone Sensor
The Digital LCD (Liquid Crystal Display)
zone sensor has the look and functionality
of standard zone sensors. This sensor
should be utilized with ReliaTel™ controls.
Discharge Air Sensing Kit
Provides true discharge air sensing in
heating models. The kit is functional only
with the ReliaTel Options Module.
Downflow And Horizontal Economizers
The economizers come with three control
options — dry bulb is standard, enthalpy
and differential enthalpy are optional.
Dual Thermistor Remote Zone Sensor
This sensor will reduce the total number
of remote sensors to obtain space
temperature averaging. This sensor
should be utilized with ReliaTel controls.
6RT-PRC005-EN
Features and
Benefits
Foil-Faced Insulation
All panels in the evaporator section of the
unit have cleanable foil-faced insulation.
All edges are either captured or sealed to
ensure no fibers get into the airstream.
Factory Built Roof Curbs
Available for downflow units. Only two
roof curbs for the entire Precedent line
simplifies curb selection.
Flexibility
Units are built to order in our standard
“shortest in the industry” ship cycle time.
Fresh Air
0 - 25% manual or 0 - 50% motorized
outside air hoods are available.
High Pressure Cutout
This factory-installed option is offered for
units that do not have High Pressure
Cutout as standard. All 3-phase units with
scroll compressors include High Pressure
cutout as standard.
High Static Drive Accessory
Available on many models, this high
static drive accessory extends the
capability of the standard motor. Avoid
expensive motors and operating costs by
installing this optimized sheave
accessory.
Hinged Access Doors
These doors permit easy access to the
filter, fan/heat,
and compressor/
control sections.
They reduce the
potential roof
damage from
screws or sharp
access door
corners.
®
LonTalk
Communications
Interface
The LonTalk
communications interface
allows the unit to communicate as a
Tracer™LCI-V device or directly with
generic LonTalk Network Building
Automation System Controls.
Phase Monitor
Phase monitor shall provide 100%
protection for motors and compressors
against problems caused by phase loss,
phase imbalance, and phase reversal.
Phase monitor is equipped with an LED
that provides an ON or FAULT indicator.
Power Exhaust Option
This option is available on downflow units
and provides exhaust of the return air,
when using a downflow economizer, to
maintain proper building pressurization.
Great for relieving most building
overpressurization problems.
Quick-Access Panels
Remove two screws for access to the
standardized internal components and
wiring.
Quick-Adjust Idler Arm
With the Quick-Adjust Idler Arm, the belt
and sheaves can be quickly adjusted
without moving the mounted fan motor.
The result is a major savings in time and
money.
Reference or Comparative Enthalpy
Measures and communicates humidity
while maximizing comfort control.
Sloped Drain Pans
Every Precedent unit has a noncorrosive, removable, double-sloped
drain pan that’s
easy to clean
and reversible to
allo w installation
of drain trap on
either side of the
unit.
Standardized Components
Components are placed in the same
location on all Precedent units. Familiarize
yourself with one Precedent and you are
familiar with every Precedent.
Due to standardized components
throughout the Precedent line,
contractors/owners can stock fewer
parts.
Supply and/or Return Air Smoke
Detector
With this option
installed, if smoke is
detected, all unit
operation will be shut
down. Reset will be
manual at the unit.
Return Air Smoke
Detectors require
minimum allowable
airflow when used
with certain models.
Thermal Expansion Valve
Available for a wider range of
applications.
Tool-less Hail Guards
Tool-less, hail protection quality coil
guards shall be either factory or fieldinstalled for condenser coil protection.
This option protects the condenser coil
from vandalism and/or hail damage.
Trane Communication Interface (TCI)
Available factory or field installed. This
module when applied with the ReliaTel™
easily interfaces with Trane’s Integrated
Comfort
TM
System.
RT-PRC005-EN
7
Features and
Benefits
Unit Cabinet
The compact cabinet with rounded
corners takes up less room and is less
costly to ship. The beveled and ribbed top
is not only aesthetically pleasing, it is
designed to prevent water from pooling.
Va riTr ac
When Trane’s changeover VAV System
for light commercial applications is
coupled with Precedent, it provides the
latest in technological advances for
comfort management systems and can
allow thermostat control in every zone
served by VariTrac.
Ventilation Override Accessory
With the Ventilation Override Accessory
installed, the unit can be set to transition
to up to 3 different pre-programmed
sequences for Smoke Purge,
Pressurization, and Exhaust. The
transition occurs when a binary input on
the RTOM is closed (shorted). This would
typically be a hard wired relay output
from a smoke detector or fire control
panel. The ventilation override kit is
available as a field installed accessory.
Zone Sensors
Available in programmable, automatic
and manual styles.
Precedent offers ultimate flexibility. Units
are built to order in our standard
“shortest in the industry” ship cycle time.
Rigorous Testing
All of Precedent’s designs were
rigorously rain tested at the factory to
ensure water integrity.
Actual shipping tests were performed to
determine packaging requirements. Units
were test shipped around the country to
determine the best packaging. Factory
shake and drop tests were used as part
of the package design process to help
assure that the unit arrives at the job site
in top condition.
Rigging tests include lifting a unit into the
air and letting it drop one foot, assuring
that the lifting lugs and rails hold up under
stress.
We perform a 100% coil leak test at the
factory. The evaporator and condenser
coils are leak tested at 200 psig and
pressure tested to 450 psig.
All parts are inspected at the point of final
assembly. Sub-standard parts are
identified and rejected immediately.
Every unit receives a 100% unit run test
before leaving the production line to
make sure it lives up to rigorous Trane
requirements.
VariTrac™
8RT-PRC005-EN
Features and
Benefits
Easy to Install
Convertible Units
–The units ship in a downflow
configuration. They can be easily
converted to horizontal by simply
moving two panels.
– Units come complete with horizontal
duct flanges so the contractor doesn’t
have to field fabricate them. These duct
flanges are a time and cost saver.
Easy Access Low Voltage Terminal Board
Precedent’s Low Voltage Terminal Board
is external to the electrical control
cabinet. It is extremely easy to locate and
attach the thermostat wire and test
operation of all unit functions. This is
another cost and time saving installation
feature.
Low Voltage Connections
The wiring of the low voltage connections
to the unit and the zone sensors is as
simple as 1-1, 2-2, and 3-3. This simplified
system makes it easy for the installer to
wire.
Electric Heaters
Electric heat modules are available within
the basic unit. If ordering the Through the
Base Electrical option with an Electrical
Heater, the heater must be factory
installed.
Powered or Unpowered Convenience
Outlet
This option is a GFCI, 120v/15amp, 2 plug,
convenience outlet, either powered or
unpowered. This option can only be
ordered when the Through the Base
Electrical with either the Disconnect
Switch, or Circuit Breaker, option is
ordered. This option is available on all
downflow models.
Single Point Power
A single electrical connection powers the
unit.
Single Side Service
Single side service is standard on all
units.
Through the Base Condensate
Every unit includes provisions for through
the base condensate drain connections.
This allows the drain to be connected
through the roof curb instead of a roof
penetration.
Through the Base Electrical Utility
Access
Factory provided through the base
openings simplify wiring and piping.
Because these utility openings frequently
minimize the number of roof
penetrations, the integrity of roofing
materials is enhanced.
Through the Base Electrical with Circuit
Breaker
This option is a factory installed thermal
magnetic, molded case, HACR Circuit
Breaker with provisions for through the
base electrical connections. This option is
available on all downflow models.
RT-PRC005-EN
9
Features and
Benefits
Through the Base Electrical with
Disconnect Switch
Factory installed 3-pole, molded case,
disconnect switch with provisions for
through the base electrical connections
are available. This option is available on
all downflow models.
Through the Base Utilities Access
An electrical service entrance shall be
provided allowing electrical access for
both control and main power connections
inside the curb and through the base of
the unit. Option will allow for field
installation of liquid-tight conduit and an
external field installed disconnect switch.
Unit Mounted Disconnect or Circuit
Breaker
Codes require a method of assured unit
shutdown for servicing. Field-installed
disconnects sometimes interfere with
service access. Factory installation of unit
disconnects reduces costs, assures
proper mounting and provides the
opportunity to upgrade to unit circuit
breaker protection.
Unit Mounted Disconnect
or Circuit Breaker
Factory Installed Options
A wide variety of Factory Installed
Options (FIOPs) are available.
Convenience Outlet
Added Efficiency
Airflow
Airflow is outstanding. The Precedent can
replace an older machine with old
ductwork and, in many cases, improve
the comfort through better air
distribution.
Belt or direct drive – standard or
oversized supply fan motors meet a wide
airflow range.
Cooling
Standard or High Efficiency Cooling
available.
Economizer
Equipped with either dry bulb, reference
or comparative enthalpy sensing, this
feature provides free cooling as the
outdoor temperature and/or humidity
decreases. Economizers, correctly
installed, offer a valuable energy savings.
Factory-installed economizers save time
and ensure proper installation.
High Efficiency Motors
This option is available with efficiency
ratings from 86.5 up to 91.0. It is not
available for all models.
Low Ambient Cooling
All Precedent microprocessor units have
cooling capabilities down to 0°F as
standard. Electromechanical models
have cooling capabilities to 40°F as built,
or to 0°F by adding the optional low
ambient control (frostat).
Oversized Motors
Factory or field installed oversized
motors available for high static
applications.
One of our Finest Assets:
Trane Sales Representatives are a
Support Group that can assist you with:
— Product
— Application
— Service
— Training
— Special Applications
— Specifications
— Computer Programs and much more
Precedent has the features and benefits
that make it first class in the light
commercial rooftop market.
10RT-PRC005-EN
Application
Considerations
Application of this product should be
within the cataloged airflow and cooling
considerations.
Low Ambient Cooling
The Precedent™ line features, with
ReliaTel™ microprocessor controls, low
ambient cooling down to 0°F. With
electromechanical controls, Precedent
features low ambient cooling to 40°F. The
following options need to be included/
considered when low ambient
applications are required: continuous fan
operation, crankcase heaters, thermal
expansion valves, frostat. Contact your
local Trane Representative for more
assistance with low ambient cooling
applications.
Barometric Relief
This product line offers an optional
barometric relief damper. for use in
conjunction with economizer option. This
accessory consists of gravity dampers
which open with increased pressure. As
the building air pressure increases, the
pressure in the unit return air section
also increases, opening the dampers and
relieving the conditioned space.
NOTE: THE EFFECTIVENESS OF
BAROMETRIC RELIEF DAMPER DURING
ECONOMIZING OPERATION IS SYSTEM
RELATED.
PRESSURE DROP OF THE RETURN AIR
SYSTEM SHOULD BE CONSIDERED TO
CONTROL BUILDING PRESSURIZATION.
Condensate Trap
The evaporator is a draw-thru
configuration. A trap must be field
provided prior to start-up on the cooling
cycle.
Clearance Requirements
The recommended clearances identified
with unit dimensions should be
maintained to assure adequate service
maximum capacity and peak operating
efficiency. Actual clearances which
appear inadequate should be reviewed
with the local Trane sales personnel.
Unit Pitch
These units have reversible sloped
condensate drain pans. Units must be
installed level, any unit slope must be
toward the side of unit where condensate
drain is connected.
RT-PRC005-EN
11
Selection
Procedures
Cooling Capacity
Step 1
Calculate the building’s total and sensible
cooling loads at design conditions. Use
the Trane calculation methods or any
other standard accepted method.
As a starting point, a rough determination
must be made of the size of the unit. The
final selection will be made after
examining the performance at the given
conditions. Divide the total cooling load by
nominal BTUH per ton (12 MBh per ton);
then round up to the nearest unit size.
59 MBh / 12 MBh = approx. 5 tons
Step 3
Table PD-15 shows that a THC060A4 has
a gross cooling capacity of 62.4 MBh and
48.4 MBh sensible capacity at 2000 cfm
and 95 DB outdoor ambient with 80 DB,
67 WB air entering the evaporator.
To Find Capacity at Intermediate
Conditions Not in the Table
When the design conditions are between
two numbers that are in the capacity
table, interpolation is required to
approximate the capacity. Note:
Extrapolation outside of the table
conditions is not recommended.
Step 4
In order to select the correct unit which
meets the building’s requirements, the
fan motor heat must be deducted from
the gross cooling capacity. The amount of
heat that the fan motor generates is
dependent on the effort by the motor cfm and static pressure. To determine the
total unit static pressure:
External Static (duct system)
0.36 wg
Standard Filter 1 in.0.15 wg
from Table PD-61
Economizer0.18 wg
(100% Outside Air)from Table
PD-73
Electric Heater Size 6 kW0.056 wg
from Table PD-61
(reference “Heating Capacity” section on
this page for determination of heater
size)
Total Static Pressure0.75 wg
Note: The Evaporator Fan Performance
Table PD-46 has deducted the pressure
drop for a 1 in. filter already in the unit
(see note below Table PD-24). Therefore,
the actual total static pressure is 0.75 -
0.15 (from Table PD - 61) = 0.60 wg.
With 2000 cfm and 0.60 wg.
Table PD-46 shows .90 bhp for this unit.
Note below the table gives a formula to
calculate Fan Motor Heat,
2.829 x bhp + .4024 = MBH.
2.829 x .83 + .4024 = 2.75 MBH.
Now subtract the fan motor heat from
the gross cooling capacity of the unit:
Net Total Cooling Capacity
= 62.4 MBH - 2.95 = 59.45 MBH.
If the performance will not meet the
required load of the building’s total or
sensible cooling load, try a selection at
the next higher size unit.
Heating Capacity
Step 1
Calculate the building heating load using
the Trane calculation form or other
standard accepted method.
Step 2
Size the system heating capacity to
match the calculated building heating
load. The following are building heating
requirements:
A
Total heating load of 15 MBH
B
2000 cfm
C
460 volt/3 phase Power Supply
The electric heat accessory capacities
are listed in Table PD-62. From the table,
a 6 kW heater will deliver 20.48 MBH at
480 volts. In order to determine capacity
at 460 volts, the heater voltage
correction factor from Table PD-63 must
be used. Therefore, 20.48 MBH x .9118
(voltage correction factor) = 18.80 MBH.
Air Delivery Selection
External static pressure drop through
the air distribution system has been
calculated to be 0.60 inches of water.
Enter Table PD-46 for a THC060A4 at
2000 cfm and 0.60 static pressure. The
standard direct drive motor will give the
desired airflow at a rated bhp of 0.90
and 998 rpm.
12RT-PRC005-EN
Selection
Procedure
Dehumidification Selection
Typical 10 ton THC120A
2000 cfm Total Supply airflow
800 cfm Outside Air (40%)
1200 cfm Return Air
0.41” External Static Pressure
OA Conditions
Part load day and raining
68°F db
67°F wb
RA’ conditions
75°F db
63°F wb
Step 1: Determine the mixed/
entering air condition (MA’)
MA’ = (% outside air*outside air dry-bulb
temperature) + (% return air*return air
dry-bulb temperature)
MA’ = (0.40*68°F) + (0.60*75°F)
MA’ = 72.20°F db
Note: Repeat for wet-bulb
temperature (wb).
Plot on psychrometric chart.
MA’
72.2°F db
65°F wb
Step 2: Determine leaving
temperature
Leaving Unit Temperature = SA’
Utilize the TOPSS™ program to
determine the leaving unit temperature.
45°F db
44°F wb
43°F dp
unit
Step 3: Determine reheat
temperature rise
Go to PD-66 for reheat temperature rise:
26.7°F db
68°F DB,
OA
67°F WB
75°F DB,
RA'
52% RH
MA' 72.2°F DB
SA'
SA
Chart C-1
65°F WB
47°F DB
73°F DB
SA'
SA'
REHEAT
OAOAOA
MA'
MA'
SA
SA
Note: Reheat temperature rise is based
on supply airflow and leaving evaporator
coil temperature.
Step 4: Determine leaving unit
temperature
Reheat temperature (obtained in step 3)
+ SA’
26.7°F db + 47°F = 73.7°F db
SA=73.7°F
Consider Chart C-1. If the space relative
humidity is equal to or above the space
relative humidity setpoint, the
Dehumidification option will:
RA'
RA'
Step 5: Determine static pressure
drop add for reheat
Table PD-61 shows a static pressure drop
of 0.09” wc 0.41”+ 0.09” = 0.5” wc
Table PD-57 indicates that a standard
motor and field installed low static drive
kit is needed for this airflow and static
pressure range.
RT-PRC005-EN
• Energize compressor or both
compressors (2 stage compressor units).
• Hot gas reheat valve is energized and
hot gas is diverted to the reheat coil.
• Dehumidification/reheat is terminated
when space humidity is reduced to 5%
below relative humidity setpoint.
At MA’, air enters the RTU. The RTU filters,
cools, and dehumidifies the air as it
moves through the evaporator coil. Air
leaves the evaporator coil saturated at
the preset dew point condition (SA’) and
is reheated by the hot gas reheat coil to
deliver 73.7°F (SA) supply air to the
space.
036 =3 Ton
048 =4 Ton
060 =5 Ton
072 =6 Ton
090 =7½ Ton, Single Compressor
092 =7½ Ton, Dual Compressor
102 =8½ Ton
120 =10 Ton
DIGIT 7 - Major Design Sequence
A = First
DIGIT 8 - Unit Voltage
1 = 208-230/60/1
3 = 208-230/60/3
4 = 460/60/3
W = 575/60/3
K = 380/60/3
DIGIT 9 - Unit Controls
E = Electromechanical
R = ReliaTel™Microprocessor
DIGIT 10 - Heating Capacity
0 = No Electric Heat
A = 5 kW (1 phase)
B = 6 kW (3 phase)
C = 9 kW (3 phase)
D = 10 kW (1 phase)
E = 12 kW (3 phase)
F = 14 kW (1 phase)
G = 18 kW (1 and 3 phase)
J = 23 kW (3 phase)
K = 27 kW (3 phase)
N = 36 kW (3 phase)
P = 54 kW (3 phase)
DIGIT 11 - Minor Design Sequence
A = First Sequence
Example:
Model number TSC036A3RBA**C000A10001A1 describes a unit with the following characteristics: DX Cooling, 3 ton nominal cooling capacity, 208-230/60/3 power supply, ReliaTel™ controls, 6 kW
electric heater model. 0-100% dry bulb economizer without barometric relief, standard direct drive motor, standard access panels/filters, standard condenser coil with no coil protection, through the
base electric, non-fused disconnect, no convenience outlet or communications interface, standard refrigeration coil, high pressure control, return air smoke detector, and clogged filter switch.
DIGITS 12, 13 - Service Sequence
** = Factory Assigned
DIGIT 14 - Fresh Air Selection
0 = No Fresh Air
A = Manual Outside Air Damper 0-50%
B = Motorized Outside Air Damper 0-50%
C = Economizer, Dry Bulb 0-100%
without Barometric Relief
D = Economizer, Dry Bulb 0-100%
with Barometric Relief
E = Economizer, Reference Enthalpy
0-100% without Barometric Relief
F = Economizer, Reference Enthalpy
0-100% with Barometric Relief
G = Economizer, Comparative Enthalpy
0-100% without Barometric Relief
H = Economizer, Comparative Enthalpy
0-100% with Barometric Relief
DIGIT 15 - Supply Fan/Drive Type/Motor
0 = Standard Drive
1 = Oversized Motor
2 = Optional Belt Drive Motor
DIGIT 16 - Hinged Service Access/Filters
0 = Standard Panels/Standard Filters
A = Hinged Access Panels/Standard Filters
B = Standard Panels/2” Pleated Filters
C = Hinged Access Panels/2” Pleated
Filters
DIGIT 17 - Condenser Coil Protection
0 = Standard Coil
1 = Standard Coil with Hail Guard
2 = Epoxy Coated Condenser Coil
3 = Epoxy Coated Condenser Coil with
Hail Guard
DIGIT 18 - Through the Base Provisions
0 = No Through the Base Provisions
A = Through the Base Electric
0 = Standard Refrigeration System
A = Thermal Expansion Valve (TXV)
B = Dehumidification (Hot Gas Reheat
Coil)
DIGIT 23 - Refrigeration Controls
0 = No Refrigeration Control
1 = High Pressure Control
2 = Frostat
3 = Crankcase Heater
4 = High Pressure Control and Frostat
5 = High Pressure Control and Crankcase
Heater
6 = Frostat and Crankcase Heater
7 = High Pressure Control, Frostat and
Crankcase Heater
DIGIT 24 - Smoke Detector
0 = No Smoke Detector
A = Return Air Smoke Detector
B = Supply Air Smoke Detector
C = Supply and Return Air Smoke
Detectors
DIGIT 25 - Monitoring Controls
0 = No Monitoring Control
1 = Clogged Filter Switch
2 = Fan Failure Switch
3 = Discharge Air Sensing Tube
4 = Clogged Filter Switch and Fan Fail
Switch
5 = Clogged Filter Switch and Discharge
Air Sensing Tube
6 = Fan Fail Switch and Discharge Air
Sensing Tube
7 = Clogged Filter and Fan Fail Switches
and Discharge Air Sensing Tube
8 = Novar Return Air Sensor
14RT-PRC005-EN
General
(3 - 5 Ton)
Data
Standard Efficiency
Table GD – 1 — General Data
3 Ton Convertible Units4 Ton Convertible Units5 Ton Convertible Units
SEER
Nominal CFM / ARI Rated CFM1,200/1,2001,600/1,6001,600/1,6002,000/2,0002,000/2,0002,000/2,000
ARI Net Cooling Capacity36,00048,00047,00060,00060,00060,000
System Power (kW)3.79
Direct Drive Indoor Fan — TypeFC CentrifugalFC CentrifugalFC CentrifugalFC CentrifugalFC CentrifugalFC Centrifugal
No. Used 111111
Diameter x Width (in.)10 x 1011 x 1111 x 1111 x 1111 x 1112x11/–
Drive Type/No. SpeedsDirect/2Direct/2Direct/2Direct/2Direct/2Direct/2
No. Motors111111
Motor HP (Standard/Oversized).33/.50.60/.80.60/.80.90/1.00.90/1.001.0/–
Motor RPM (Low/High Speed)950/1060930/1000930/1000985/110 0985/1100935/1100
Oversized Motor RPM
(Low/High Speed)110 0/11451000/110010 00/11001080/11351080/1135—
Motor Frame Size
(Standard/Oversized)48/4848/4848/4848/4848/4848/—
Belt Drive Indoor Fan — TypeFC Centrifugal—FC Centrifugal—FC Centrifugal—
No. Used1—1—1—
Diameter x Width (in.)11 x 11—11 x 11—11 x 11—
Drive Type/No. SpeedsBelt/Variable Speed
No. Motors1—1—1—
Motor HP1.00—1.00—1.00—
Motor RPM1750—1750—1750—
Motor Frame Size56—56—56—
Filters — Type Furnished
(No.) Size Recommended (in.)(2) 20 x 25 x 1(2) 20 x 25 x 1(2) 20 x 25 x 1(2) 20 x 25 x 1(2) 20 x 25 x 1(2) 20 x 25 x 1
Refrigerant Charge (Lbs of R-22)
Notes:
1. Cooling Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is net and includes
the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Certified in accordance with the Unitary Air-Conditioner Equipment certification program, which is
based on ARI Standard 210/240 except AK (380V/60 Hz).
2. SEER is rated at ARI conditions and in accordance with DOE test procedures.
3. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-60.
4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.
5. TSC036A1 SEER is 10.5.
6. Belt Drive Motor is not available for TSC036A1.
7. Optional 2” Pleated Filters also available.
8. TSC036A1 System Power (kW) is 3.91.
1
TSC036A1, A3, A4, AWTSC048A1TSC048A3, A4, AWTSC060A1TSC060A3, A4, AW TSC060AK
Nominal CFM / ARI Rated CFM2,400/2,1003,000/2,6253,000/2,6253,400/3,0004,000/3,200
ARI Net Cooling Capacity69,00090,00087,000100,000
Integrated Part Load Value (IPLV)
System Power (kW)6.78.748.459.71
Belt Drive Indoor Fan — TypeFC CentrifugalFC CentrifugalFC CentrifugalFC CentrifugalFC Centrifugal
No. Used11111
Diameter x Width (in.)12 x 1212 x 1212 x 1215 x 1515 x 15
Drive Type/No. SpeedsBelt/Variable SpeedBelt/Variable Speed Belt/Variable SpeedBelt/Variable Speed Belt/Variable Speed
No. Motors11111
Motor HP (Standard/Oversized)1.00/2.00
Motor RPM (Standard/Oversized)17501750175017501750/3450
Motor Frame Size5656565656
Filters — Type Furnished
10
(No.) Size Recommended (in.)(4) 16 x 25 x 2(4) 16 x 25 x 2(4) 16 x 25 x 2(4) 20 x 25 x 2(4) 20 x 25 x 2
Refrigerant Charge (Lbs of R-22)
Notes:
1. Cooling Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is net and includes
the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Certified in accordance with the Unitary Air-Conditioner Equipment certification program, which is
based on ARI Standard 210/240 except AK (380V/60 Hz).
2. SEER is rated at ARI conditions and in accordance with DOE test procedures.
3. Integrated Part Load Value is rated in accordance with ARI Standard 210/240 or 360. Units are rated at 80°F ambient, 80°F entering dry bulb, and 67°F entering wet bulb ar ARI rated cfm.
4. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-60.
5. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.
6. EER shown is for downflow airflow. EER for horizontal airflow is 10.3.
7. ARI Net Cooling Capacity shown is for downflow airflow. Cooling Capacity for Horizontal airflow TSC102A is 99,000; TSC120A is 112,000.
8. Integrated Part Load Value (IPLV) shown is for downflow airflow. IPLV for Horizontal airflow TSC092A is 10.8, TSC102A is 11.5; TSC120A is 11.0.
9. System Power (kW) shown is for downflow airflow. System Power (kW) forHorizontal airflow TSC102A is 9.61; for TSC120A is 10.87.
10. Optional 2” Pleated Filters also available.
11. Outdoor motor is 0.75 hp for AK (380V/60 Hz units).
12. Standard indoor motor is 2.00 hp for AK (380V/60 Hz) units.
Direct Drive Indoor Fan — TypeFC CentrifugalFC CentrifugalFC CentrifugalFC Centrifugal
No. Used1111
Diameter x Width (in.)10 x 1011 x 1111 x 1111 x 11
Drive Type/No. SpeedsDirect/2Direct/2Direct/2Direct/2
No. Motors1111
Motor HP (Standard/Oversized).33/.50.60/.80.90/1.00.90/1.00
Standard Motor RPM (Low/High Speed)950/1060930/1000985/1100985/1100
Oversized Motor RPM (Low/High Speed)1100/11451000/11001080/11351080/1135
Motor Frame Size (Standard/Oversized)48/4848/4848/4848/48
Belt Drive Indoor Fan — TypeFC CentrifugalFC Centrifugal—FC Centrifugal
No. Used11—1
Diameter x Width (in.)11 x 1111 x 11—11 x 11
Drive Type/No. SpeedsBelt/Variable Speed
No. Motors11—1
Motor HP1.001.00—1.0 0
Standard Motor RPM17501750—1750
Motor Frame Size5656—56
Filters — Type Furnished
7
(No.) Size Recommended (in.)(2) 20 x 25 x 1(2) 20 x 25 x 1(2) 20 x 30 x 1(2) 20 x 30 x 1
Optional Hot Gas Reheat Coil- Type
Tube Size (in.) OD0.3750.375—0.375
Face Area (sq. ft)2.222.22—2.22
Rows/FPI1/161/16—2/16
Refrigerant Charge (Lbs of R-22)
4
Standard5.3
Optional Hot Gas Reheat Coil5.38.5—10.7
Notes:
1. Cooling Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is net and includes
the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Air-Conditioner Equipment certification program,
which is based on ARI Standard 210/240.
2. EER and SEER are rated at ARI conditions and in accordance with DOE test procedures.
3. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-60.
4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.
5. Refrigerant Charge shown is for 3 phase. 1 phase Refrigerant Charge is 8.1.
6. Belt Drive Motor is not available for THC036A1, THC048A1.
7. Optional 2” Pleated Filters also available.
8. Refrigerant Charge shown is for 3 phase. 1 phase Refrigerant Charge is 4.5.
9. TXV is supplied from the factory as standard with the Dehumidification (Hot Gas Reheat) option.
10. With Dehumidification (Hot Gas Reheat) option: Direct/2 speed.
11. 2" pleated filters is a factory installed option. 2" pleated filters is standard with the Dehumidification (Hot Gas Reheat) option.
Convertible UnitsConvertible UnitsConvertible UnitsConvertible Units
Cooling Performance
Gross Cooling Capacity73,00094,000103,000117,00 0
2
EER
1
Nominal CFM / ARI Rated CFM2,400/2,1003,000/2,6253,400/3,0004,000/3,200
ARI Net Cooling Capacity70,00090,000
Integrated Part Load Value (IPLV)
System Power (kW)6.09
Belt Drive Indoor Fan — TypeFC CentrifugalFC CentrifugalFC CentrifugalFC Centrifugal
No. Used1111
Diameter x Width (in.)12 x 1215 x 1515 x 1515 x 15
Drive Type/No. SpeedsBelt/Variable Speed Belt/Variable SpeedBelt/Variable Speed Belt/Variable Speed
No. Motors1111
Motor HP (Standard/Oversized)1.00/2.002.00/3.002.00/3.003.00/5.00
Motor RPM (Standard/Oversized)1750175017501750/3450
Motor Frame Size56565656
Filters — Type Furnished
9
(No.) Size Recommended (in.)(4) 16 x 25 x 2(4) 20 x 25 x 2(4) 20 x 25 x 2(4) 20 x 25 x 2
Optional Hot Gas Reheat Coil — Type—LancedLancedLanced
Tube Size (in.) OD—0.3750.3750.375
Face Area (sq. ft.)—5.195.195.19
Rows/FPI—2/162/162/16
Refrigerant Charge (Lbs of R-22)
Notes:
1. Cooling Performance is rated at 95 F ambient, 80 F entering dry bulb, 67 F entering wet bulb. Gross capacity does not include the effect of fan motor heat. ARI capacity is net and includes
the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Certified in accordance with the Unitary Air-Conditioner Equipment certification program, which is
based on ARI Standard 210/240.
2. SEER is rated at ARI conditions and in accordance with DOE test procedures.
3. Integrated Part Load Value is rated in accordance with ARI Standard 210/240 or 360. Units are rated at 80°F ambient, 80°F entering dry bulb, and 67°F entering wet bulb ar ARI rated cfm.
4. Outdoor Sound Rating shown is tested in accordance with ARI Standard 270. For more information refer to Table PD-60.
5. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.
6. EER shown is for downflow airflow. EER for horizontal airflow: THC072A - 11.3, THC092A and THC102A - 11.3, THC120A - 10.7.
7. System Power (kW) shown is for downflow airflow. System Power (kW) for horizontal airflow: THC072A - 6.2, THC092A - 7.88, THC102A - 8.58, THC120A - 10.09.
8. Integrated Part Load Value (IPLV) shown is for downflow airflow. IPLV for horizontal airflow: THC092A - 11.5, THC102A - 11.6, THC120A - 11.5.
9. Optional 2” Pleated Filters also available.
10. Net Cooling Capacity shown is for downflow airflow. Net Cooling for horizontal airflow: THC092A - 89,000, THC102A - 97,000, THC120A - 108,000.
5
THC072A3, A4, AWTHC092A3, A4, AWTHC102A3, A4. AWTHC120A3, A4, AW
6
11. 5
3—
7
11. 5
11. 9
7.83
6
10
8
7
11. 5
98,000
12.1
8.52
6
10
8
7
89918988
ThrowawayThrowawayThrowawayThrowaway
10.76.4 Circuit 17.4 Circuit 111.0 Circuit 1
6.2 Circuit 27.1 Circuit 27.3 Circuit 2
11. 2
109,000
12.0
9.73
6
10
8
7
18RT-PRC005-EN
Performance
(3, 4 Ton)
Data
Standard Efficiency
Table PD-1 — Gross Cooling Capacities (MBH) 3 Ton Single/Three Phase TSC036A1, A3, A4, AW
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
2. MBH = Total Gross Capacity
3. SHC = Sensible Heat Capacity
*Unit applications below 960 CFM
• Electric heaters restricted on applications below 960 CFM.
• Dehumidification (Hot Gas Reheat) or TXV with Frostat and Crankcase Heaters are required on applications below 960 CFM.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
2. MBH = Total Gross Capacity
3. SHC = Sensible Heat Capacity
*Unit applications below 1280 CFM
• Electric heaters restricted on applications below 1280 CFM.
• Dehumidification (Hot Gas Reheat) or TXV with Frostat and Crankcase Heaters are required on applications below 1280 CFM.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow
table notes.
1. All capacities shown are gross and have not considered indoor fan heat. To obtain NET cooling capacity subtract indoor fan heat. For indoor fan heat formula, refer to appropriate airflow