Trane RT-PRC010-EN User Manual

P ackaged Roof top Air Conditioners

IntelliP ak® Rooft ops 20 - 130 Tons — 60 Hz

20 - 75 Tons

90 - 130 T ons

October 2001

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Introduction

IntelliP ak

Designed For Today and Be yond

Innovative technology and an impressive line-up of features make the the T rane IntelliPak number one choice for today and the future.

T rane’s roof top Unit Control Module (UCM), an innovative, modular microprocessor control design, coordinates the actions of the IntelliPak rooftop in an efficient manner and allows for stand-alone operation of the unit.

Access to the unit controls, via a Human Interface Panel, provides a high degree of control, superior monitoring capability, and unmatched diagnostic information.

Rooftop line the

Optionally, for centraliz ed building control on-site, or from a remote location, IntelliPak can be configured for direct communication with a T racer building management system using a twisted pair of wires. With Tracer, the IntelliPak status data and control adjustment features can be conveniently monitored from a central location.

IntelliPak has the tec hnology

flexibility

every building space.

to bring total comfort to

and

©American Standard Inc. 2001

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Contents

Introduction Featur es and Benefits

Application Considerations Selection Procedur e

Model Number Description

General Data Perf or mance D ata

Performance Adjustment Factors

Controls Electric Power Dimension and W eights Mechanical Specifications

Options

2 4

16 20

22 29

28 75

83 86 99

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Features and Benefits

Standard Feat ures

• 20 to 130 ton industrial/ commercial rooftops

• Fully integrated, factory-installed/ commissioned microelectronic controls

• Unit mounted Human Interface Panel with a 2 line x 40 character English display and a 16 function key-pad that includes Custom, Diagnostics, and Service Test mode menu keys.

• T rane 3-D (20 to 130 Tons)

• Compressor or circuit lead/lag depending on unit

• Horizontal disc harge/return duct connections (SX, SL, SS models)

• CV or VAV control

• Low ambient compressor loc kout

control on units with economizers

• FROSTAT™ coil frost protection on all units

• Daytime Warm-up (Occupied mode) on V A V models and Morning Warm-up operation on all units with heating options

• Supply air static overpressurization protection on units with inlet guide vanes and VFD’s.

• Supply airflow proofing

• Exhaust airflow proofing on units with

exhaust option

• Supply air tempering control

• Supply air heating control on VAV

modulating hot water or steam heat units

• Emergency stop input

• Liquid and Discharge S ervice Valves

• Mappable sensors and setpoint

sources

• Occupied/Unoccupied switching

• Timed override activation

• Forward-curved supply fans

• Pitched roof over air handler section

• Stainless steel flue stack on gas heat

units

• 14-gauge, single-piece construction base rails

Scroll compressors

• UL and CSA approval on standard options

• Two-inch spring fan isolation (90 to 130 tons)

• Meets 672 hours of salt spray testing in accordance to A STM B117 Standard

• Two inch standard efficiency throwaw ay filters on 20 to 90 ton units and two inch high ef ficiency throwaw ay filters on 105 to 1 30 ton units.

Optional Featur es

• Trane Communication Interface Module: ICS interface control module

• Remote Human Interface Panel (controls up to 4 units)

• Five ventilation override sequences

• Heating options: natural gas, electric,

hot water or steam

• Generic BAS interface

• Choose from three economizer control

options: comparative enthalpy, reference enthalpy, dry bulb control

• Variable frequency drive control of supply/exhaust fan motor

• Inlet guide vanes on FC supply fans (VA V only)

• Outside air CFM compensation on VAV units with IGV (or VFD) and economiz er

• Hot gas bypass to the evaporator inlet

• Copper evaporator/condenser coils

• Suction service valves

• Replaceable core filter driers

• Phenolic coated evaporator/condenser

coils

• High capacity evaporator coils (20 to 105 tons)

• Special paint colors

• Extended casing (SX models)

• Double wall access doors

• Double wall construction/perforated

double wall

• Stainless steel drain pan in evaporator section

• Pitch evaporator drain pan

• Filter rack only (no filters)

• High efficiency throwaway filters

• 90-95 percent bag filters

• 90-95 percent cartridge filters

• Final filters

• Barometric relief

• 50 percent modulating exhaust with

forward-curved fans

• T rane’s air quality (T raq™) sensor

• Modulating Gas Heat

• 10 year limited w arranty on Full

Modulation Gas Heat

• 100 percent modulating exhaust with forward-curved fans

• 100 percent modulating exhaust with FC fans and Statitrac™ direct space sensing building pressurization control

• High duct temperature thermostats

• 0 F low ambient control

• 0-100 percent modulating fresh air

economizer

• Ultra low leak dampers for 0-100 percent modulating fresh air economizers

• Dual electrical power connection

• T wo-inch spring fan isolation

(20 to 75 tons)

• High efficiency motors

• U-frame motors

• Oversized motors

• Thru the door non-fused disconnect

with external handle

• Electrical convenience outlet

• Power supply monitoring

• Correction capacitors

• Horizontal or Roof disc harge w/g as heat (20-75 tons “F” style units only)

Field Installed A ccessor ies

• Roof curbs

• Programmable sensors with night set back — CV and VAV

• Sensors without night set back — CV

and VA V

• Remote zone sensors — used for remote sensing with remote panels.

• ICS zone sensors used with T racer® system for zone control

• Outdoor temperature sensor for units without economizers

• Remote minimum position control for economizer

• Field installed module kits available for field upgrade of controls

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Features and Benefits

Featur es Summary

IntelliPak® roof top features make installation and servicing easy and reliable operation a reality.

Installation Ease

• Factory-installed/commissioned controls

—ease of star t up —single twisted wire pair —communication for ICS interface —full unit points access, no field wir-

ing of required points

• Unit mounted Human Interface Panel standard

—user friendly keypad — edit

parameters

—thru the access door interface —start up adjustments —unit mounted and remote in-

terface panel key pads are identical

• Unit mounted lifting lugs facilitate installation and can be used as unit tiedown points.

Easy to Service

• The microprocessor unit controls coordinates the operation of the rooftop with quality , industry-accepted components for service ease.

• Unit mounted Human Interface Panel standard

—user friendly keypad — edit pa-

rameters

— thru the access door interface — start up adjustments — unit mounted and remote interface

panel key pads are identical

• Modularity of unit control design

—individual replaceable functional

boards

• Advanced diagnostics

Reliability

• Advanced diagnostics

• Microprocessor controls

• Built-in safeties

• Modular control design

• UL approval as standard

• Forward-curved supply and exhaust

fans are T rane designed and factory balanced.

• Fully insulated and gasketed panels reduce ambient air infiltration.

• Fixed-speed evaporator fan and exhaust drive for smooth fan operation and belt durability.

• 200,000 average life fan bearings enhance unit durability.

• Gas heater with free-floating stainless steel heat exchanger relieves the stresses of expansion and contraction. Stainless steel provides corrosion resistance through the entire material thickness.

• Integral condenser subcooler improves efficiency while helping avoid liquid flashing.

• Factory-wired and commissioned controls assure efficient and reliable rooftop operation.

• T rane Scroll compressors are used on 20 to 130 ton units. They are designed for tough industrial operation and meet demanding operating conditions both in efficiency and reliability .

• Roll-formed construction enhances cabinet integrity and assures a leakproof casing.

• Three-phase, direct-drive condenser fan motors enhance dependability and increase rooftop life.

• T rane industrial quality evaporator and condensing coils help increase rooftop life.

Application Flexibility

• Modularity in design

• Increased offering of standard options

• Generic BAS interface

• Five factory preset/re-definable in the

field ventilation override sequences

• Superior Tracer® interface for ICS applications

— factory-installed Trane

Communication Interface

• Unit mounted or Remote Human Interface panels

— all parameter are editable from the

Human Interface Panel

• Comparative enthalpy, Reference enthalpy, or Dry bulb control for economizers

• Statitrac™ direct space building pressure control

• Compensated outdoor air control — IAQ

• Factory-installed filter rack includes two-inch throwaw ay filters.

• CV controls stage both compressors and heat based on space requirements.

• Variable F requency Drives (VFD) Included With or Without Bypass Control for Supply and Exhaust Fans.

• An array of heating options are available, including Steam, Hot Water, Electric and Natural Gas heat. The Gas Heating option provides a choice of two-stage gas heat, as well as full and limited modulating gas heat.

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Integrated Rooftop Systems: Pr ofitable, Simple

Integrat ed Comfor t™ System (ICS)

T rane integrated rooftop systems make design and installation of rooftop comfort systems profitable and easy . The Integrated Comfort™ system (ICS) improves job profit and increases job control by combining T rane rooftop units and a T racer system. This integrated system provides total building comfort and control. The primary motivation for building owners/ managers in making the purchasing decision of HVA C controls system is no longer just saving energy; it is having the ability to automate their facilities and the convenience of interface to control systems.

Simplifying The Comfort System

At T rane, we think new tec hnology and innovation should bring you more capabilities, more flexibility and at the same time be able to give you equipment and systems that are easier to use, easier to install, commission and service. The Rooftop Integrated Comfort system saves you time and money by simplifying system design and system installation. When used with Trane’s DDC/ VAV boxes (or VariTrane™), system balancing almost goes away because each VA V box is commission and tested before it leaves the factory. All the status information and editing data from the rooftop units, VAV bo xes, lighting, exhaust and other auxiliary equipment is available from T racer for control, monitoring and service support of your

building management

Features and Benefits

facility. Tracer, a family of building automation products from T rane, is designed with robust, application specific software pac kages to minimize custom programming requirements and enable system setup and control through simple editing of parameters in the standard applications software. Should you select an Integrated Comfort system for your facility, the accountability for equipment, automation and controls is T rane’s, T rane’s, and T rane’s!

The IntelliPak Integrated Comfort system, provides powerful maintenance monitoring, control and reporting capabilities. The T racer places the rooftop in the appropriate operating mode for operation for: system on/off, night setback, demand limiting , setpoint adjustment based on outside parameters and much more. Up to 48 different unit diagnostic conditions can be monitored through T racer to let you know about things like: sensor failures, loss of supply airflow, and a compressor trip out. Further, the addition of Building Management Network software offers remote scanning, automatic receipt of alarms, and easy dial-up access to over 100 various T racer sites across town or across the country.

T ypical points available through Tracer:

IntelliPak Rooft ops monit or ing points av ailable through Tracer

• all active Rooftop diagnostics

• history of last 20 unit diagnostics

• all system setpoints

• system sensor inputs

• supply fan mode and status

• inlet guide vane position/VFD speed

• unit heat/cool mode

• exhaust fan status

• exhaust damper position

• economizer position, minimum

position setpoint, economizing setpoint

• on/off status of eac h compressor

• refrigerant evaporator and saturated

condenser temperatures

• hydronic heat valve position

• electric heat stage status

• ventilation override mode status

rooftop, as a par t of an

Tracer control points for IntelliP ak Rooftops

• cooling and heating setpoints

• zone setpoint offsets for use with

demand limiting

• VAV disc harge air setpoints

• supply air pressure setpoint

• space pressure setpoint

• zone and outdoor temperature values

• cooling and heating enable/disable

• economizer enable/disable

• economizer setpoint

• economizer minimum position

• activation of ventilation override

modes

• diagnostics reset

• unit priority shutdown

IntelliPak Rooft ops set-up and configuration information through Tracer

• supply fan mode

• configuration of supply air reset

• ventilation override mode

configuration

• default system setpoint values

• sensor calibration offsets

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Features and Benefits

Optimum Building Comfort Control

The modular control design of the UCM allows for greater application flexibility. Customers can order exactly the options required for the job, instead of one large control package. Unit features are distributed among multiple field replaceable printed circuit boards. The T rane UCM can be set up to operate under one of three control applications:

1) stand-alone

2) interface with Trane’s Tracer® building management system

3) interface with a generic (non-Trane) building management system. All set-up parameters are preset from the factory, requiring less start-up time during installation.

The unit mounted Human Interface and the Remote Human Interface Panels’ functions are identical, except for the Service mode is not available on the Remote Human Interface Panel. This common interface feature requires less time for building maintenance personnel to learn to interact with the unit. All of the rooftop’s control parameters are adjustable and can be set up through the Remote Human Interface Panel suc h as, but not limited to: system on/off, demand limiting type, night setback setpoints, and many other setpoints. No potentiometers are required for setpoint adjustment, all adjustments are done through the Remote Human Interface key-pad. Also up to 48 dif ferent roofto p diagnostic points can be monitored through the human interfaces such as: sensor failures, loss of supply airflow, and compressor trip. No special tools are required for servicing of the unit. All diagnostic displays are available in clear English at the Remote Human Interface and will be held in memory, so that the operator/servicer can diagnose the root cause of failures.

Statitrac™ Direct Space Building Pressur ization Contr ol

T rane’s Statitrac™ control is a highly accurate and efficient method of maintaining building pressure control with a large rooftop air conditioner.

The efficiency is achieved with a 1 00 percent modulating exhaust system with two forward-curved fans with modulating discharge dampers that operate only when needed, compared to some systems that operate continually. And most of the operating hours of the 100 percent modulating exhaust system are at part load, saving more energy. T rane’s Statitrac, with the 100 percent modulating exhaust system, provides comfort and economy for buildings with large rooftop air conditioning systems.

Statitrac control is simple! The space pressure control turns the exhaust fans on and off as required and modulates exhaust dampers to maintain space pressure within the space pressure dead band. Using the unit mounted Human Interface Panel you can

1) adjust space pressure setpoint

2) adjust space pressure dead band

3) measure and read building space pressure. The modulating exhaust system maintains the desired building pressure, saving energy while keeping the building at the right pressure. Proper building pressurization eliminates annoying door whistling, doors standing open, and odors from other zones.

The Statitrac™ direct space building control sequence will be maintained when a variable frequency drive is used.

Fans With Inlet Guide V anes

T rane’s forward curved fans (20 through 75 tons) and air foil fans (90 through 130 tons) with inlet guide vanes pre-rotate the air in the direction of the fan wheel, decreasing static pressure and horsepower, essentially unloading the fan wheel. The unloading characteristics of a Trane FC fan with inlet guide vanes result in superior part load performance.

Variable Fr equency Driv es (VFD)

V ariable Frequency Drives are factory installed and tested to provide supply/ exhaust fan motor speed modulation. VFD’s, as compared to inlet guide vanes or discharge dampers, are quieter , more efficient, and are eligible for utility rebates. The VFD’s are available with or without a bypass option. Bypass control will simply provide full nominal airflow in the event of drive failure.

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Features and Benefits

Trane 3-D® Scroll Compr essor

Simple Design with 70% Fewer Par ts

Fewer parts than an equal capacity reciprocating compressor means significant reliability and efficiency benefits. The single orbiting scroll eliminates the need for pistons, connecting rods, wrist pins and valves. Fewer parts lead to increased reliability . Fewer moving parts, less rotating mass and less internal friction means greater efficiency than reciprocating compressors.

The T rane 3-D Scroll provides impor tant reliability and efficiency benefits. The 3-D Scroll allows the orbiting scrolls to touch in all three dimensions, forming a completely enclosed compression chamber whic h leads to increased efficiency. In addition, the orbiting scrolls only touch with enough force to create a seal; there is no wear between the scroll plates. The fixed and orbiting scrolls are made of high strength cast iron which results in less thermal distortion, less leakage, and higher efficiencies. The most outstanding feature of the 3-D Scroll compressor is that slugging will not cause failure. In a reciprocating compressor, however , the liquid or dir t can cause serious damage.

Low T orque V ariation

The 3-D Scroll compressor has a very smooth compression cycle; torque variations are only 30 percent of that produced by a reciprocating compressor. This means that the scroll compressor imposes very little stress on the motor resulting in greater reliability. Low torque variation reduces noise and vibration.

Suction Gas Cooled Motor

Compressor motor efficiency and reliability is further optimized with the latest scroll design. Cool suction gas keeps the motor cooler for longer life and better efficiency.

Proven Design Through Testing and Research

With over twenty years of development and testing, T rane 3-D Scroll compressors have undergone more

than 400,000 hours of laboratory testing and field operation. This work combined with over 25 patents makes Trane the worldwide leader in air conditioning scroll compressor technology .

One of two matched scroll plates — the distinguishing feature of the scroll compressor.

Chart illustrates low torque variation of 3-D Scroll compressor vs reciprocating compressor.

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Application Considerations

EXHAUST AIR OPTIONS

When is it necessary to provide building exhaust? Whenever an outdoor air economizer is used, a building generally requires an exhaust system. The purpose of the exhaust system is to exhaust the proper amount of air to prevent over or underpressurization of the building. The goal is to exhaust approximately 10 percent less air than the amount of outside air going into the building. This maintains a slightly positive building pressure.

A building may have all or part of its exhaust system in the rooftop unit. Often, a building provides exhaust external to the air conditioning equipment. This external exhaust must be considered when selecting the rooftop exhaust system.

IntelliPak® Roof top units offer four types of exhaust systems:

100 percent modulating exhaust with Statitrac™ direct space sensing building pressurization control (with or without variable frequency drives).

100 percent modulating exhaust without Statitrac.

3 50 percent power exhaust.

Barometric relief dampers.

Application Recommendations 1

100 percent modulating exhaust with Statitrac™ control

For both CV and VAV rooftops, the 100 percent modulating exhaust discharge dampers (or VFD) are modulated in response to building pressure. A differential pressure control system, called Statitrac™, uses a differential pressure transducer to compare indoor building pressure to atmospheric pressure. The FC exhaust fan is turned on when required to lower building static pressure to setpoint. The Statitrac control system then modulates the discharge dampers (or VFD) to control the building pressure to within the adjustable, specified dead band that is set at the Human Interface Panel.

Advantages of the Statitrac™ 100 percent modulating exhaust system are:

The exhaust fan runs only when needed to lower building static pressure.

Statitrac compensates for pressure variations within the building from remote exhaust fans and makeup air units.

The exhaust fan discharges in a single direction resulting in more efficient fan operation compared to return fan systems.

Because discharge dampers modulate the airflow, the exhaust fan may be running unloaded whenever the economizer dampers are less than 100 percent open.

With an exhaust fan system, the supply fan must be sized to pull the return air back to the unit through the return system during non-economizer operation. However, a supply fan can typically overcome return duct losses more efficiently than a return air fan system. Essentially, one large fan by itself is normally more efficient than two fans in series because of only one drive loss not two as with return air systems.

The reason for either a return air fan or an exhaust fan is to control building pressure. The Trane 100 percent modulating exhaust system with Statitrac does a better job controlling building pressure than return fans simply because 100 percent modulating exhaust discharge dampers (or VFD) are controlled directly from building pressure, rather than from an indirect indicator of building pressure such as outdoor air damper position.

The 100 percent modulating exhaust system with Statitrac may be used on any rooftop application that has an outdoor air economizer. However, when most exhaust is handled external to the rooftop or when building pressure is not critical, one of the other less expensive methods of exhaust may be used.

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Application Considerations

2 100 Percent Exhaust S ystem

Competitive rooftops use a return air fan system for controlling the amount of exhaust air during economizer operation. The return fan is in series with the supply fan and must operate whenever the supply fan is operating. During economizer operation, the economizer outdoor air dampers control the position of the return and exhaust air dampers, to exhaust the proper amount of air. The disadvantage of a return air fan is that it runs continuously, versus an exhaust fan system which runs only when needed to lower or maintain building static pressure. Also, the return fan must discharge air in two directions, through the return air dampers and/or exhaust air dampers, resulting in less efficient operation compared to an exhaust fan.

The IntelliPak® Roof top unit offers modulating 100 percent exhaust system. This fan system has performance capabilities equal to the supply fan. The FC exhaust fans are started by the

economizer’s outdoor air damper position and the exhaust dampers track the economizer outdoor air damper position. The amount of air exhausted by this fan is controlled by modulating discharge dampers at the fan outlet. The discharge damper position is controlled by a signal that varies with the position of the economizer dampers. When the exhaust fans start, the modulating discharge dampers are fully closed, and exhaust airflow is 15 to 20 percent of total exhaust capabilities.

3 50 Percent Exhaust S ystem

The 50 percent exhaust system is a single FC exhaust fan with half the air moving capabilities of the supply fan system. The experience of The T rane Company is that a non-modulating exhaust system selected for 40 to 50 percent of nominal supply CFM can be applied successfully.

The 50 percent exhaust system generally should not be selected for more than 40 to 50 percent of design supply airflow. Since it is an on/off nonmodulating

system, it does not vary exhaust CFM with the amount of outside air entering the building. Therefore, if selected for more than 40 to 50 percent of supply airflow, the building may become under -

pressurized when economizer operation is allowing lesser amounts of outdoor air into the building. If, however , building pressure is not of a critical nature, the non-modulating exhaust system may be sized for more than 50 percent of design supply airflow.

4 Barometr ic Relief D ampers

Barometric relief dampers consist of gravity dampers which open with increased building pressure. As the building pressure increases, the pressure in the unit return section also increases, opening the dampers and relieving air. Barometric relief may be used to provide relief for single story buildings with no return ductwork and exhaust requirements less than 25 percent.

Figure AC-1 — Plan View of Modulating 100 Percent Exhaust Syst em

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Application Considerations

Horizontal Dischar g e

The typical rooftop installation has both the supply and return air paths routed through the roof curb and building roof. However, many roof top installations require horizontal supply and/or return from the rooftop because of a building’s unique design or for acoustic considerations.

T rane has two ways to accomplish horizontal supply and/or return. The first applies to all IntelliPak® Ro oftop units. Special field supplied curbs are installed that use the unit’s standard discharge and return openings. The supply and return air is routed through the curb to horizontal openings on the sides of the curb. The second method available for

20 - 75 tons SXHF, SFHF, SLHF, SSHF, and 90 - 130 tons SXHG, SLHG and SSHG design units ONLY . With this method the

standard discharge and return openings are blocked in the field. Access panels are removed as indicated in Figures AC -1 and AC-2. These openings are used for the discharge and return. No special curb is needed.

SXHF, SFHF, SLHF, SSHF Units

Figure AC-1 is a simplified sketch of the rooftop showing whic h panels can be used for horizontal supply and/or return. To supply air horizontally, the panels that normally house the heat accessory controls (Panel A) and the gas heat barometric dampers (Panel B) can be removed and either of the openings

horizontal supply and return applies to

Figure AC-2 Horizontal Discharge Panel Dimensions — 20 - 75 T ons SXHF, SFHF, SLHF, SSHF Units

Note: Cannot remove Panel A for horizontal discharge on SFHF, SLHF, SSHF Units.

used as a unit discharge (see note 1). To return air horizontally, the exhaust fan access door (Panel C) can be removed and used as a return opening. T ables A C1, 2 and 3 show dimensions for those panels.

Horizontal Disc harge on SXHF, SFHF, SLHF and SSHF Rooftops (20 t o 75 tons)

The SXHF (extended casing cooling only), SFHF (gas heat), SSHF (steam heat) and SLHF (hot water heat) rooftops can be field modified to supply and return air horizontally without the use of a horizontal supply/return curb.

To supply air horizontally on SXHF only, the panels that normally house the heat accessory controls (Panel A) and the g as heat barometric dampers (Panel B) can be removed and either of the openings used as a unit discharge. To return air horizontally, the exhaust fan access door (Panel C) can be removed and used as a return opening.

1. For horizontal discharge on SFHF, SLHF and SSHF

units, only the Panel B can be removed. Panel A cannot be used due to the location of the heating coils.

2. For horizontal discharge on SFHF (gas heat) models,

the block off under the heater must be removed. After removal, a support must be added for the drain tube.

3. Supply and Return Base openings must be covered

when converting to a horizontal configuration.

T able A C-1 — SXHF, SFHF, SSHF, SLHF — Panel A and B Dimensions

Model H (in.) W (in.) (in.2) (ft2) S*HF C20 40.7 25.5 1038 7.2 S*HF C25 40.7 25.5 1038 7.2

S*HF C30 52.7 25.5 1344 9.3 S*HF C40 64.5 34.5 2225 15.5 S*HF C50 76.7 34.5 2646 18.4 S*HF C55 76.7 34.5 2646 18.4 S*HF C60 64.6 34.5 2229 15.5 S*HF C70 64.6 34.5 2229 15.5

S*HF C75 64.6 34.5 2229 15.5

Notes:

1. Add an extra 0.20-inches pressure drop to the supply external static to account for the extra turn the air is making.

2. The openings all have a 1.25-inch lip around the perimeter to facilitate ductwork attachment.

3. If exhaust fans are being used, provisions should be made for access to the exhaust components, since the access door is now being used as a return.

4. Use the dimensions provided and the supply Cfm to calculate the velocity (ft/min) through the openings to be sure they are acceptable.

T otal Area (H X W)

T able AC-2 — SXHF, SFHF, SSHF, SLHF — Panel C Dimensions

Model H (in.) W (in.) (in.2) (ft2) S*HF C20 40.7 34.5 1404 9.8 S*HF C25 40.7 34.5 1404 9.8

S*HF C30 52.7 34.5 1818 12.6 S*HF C40 64.5 34.5 2225 15.5 S*HF C50 76.7 34.5 2646 18.4 S*HF C55 76.7 34.5 2646 18.4 S*HF C60 64.6 34.5 2229 15.5 S*HF C70 64.6 34.5 2229 15.5

S*HF C75 64.6 34.5 2229 15.5

* = X, F , L, or S

Total Area (H X W)

T able AC-3 — SXHF, SFHF, SSHF, SLHF — X, Y and Z Dimensions

Model X (in.) Y (in.) Z (in.) S*HF C20 35.5 44.0 201.5 S*HF C25 35.5 44.0 201.5 S*HF C30 35.5 56.0 201.5

S*HF C40 44.5 67.8 237.0 S*HF C50 44.5 80.0 237.0 S*HF C55 44.5 80.0 237.0 S*HF C60 44.5 68.0 237.5 S*HF C70 44.5 68.0 237.5

S*HF C75 44.5 68.0 237.5

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Application Considerations

Figure AC-3 is a simplified sketch showing which panels can be used for horizontal supply and/or return. On 90 to 130 ton units, only one side of the extended casing may be used for horizontal supply because of the location of the unit control panel. There are, however, on SXHF models two panels (Panels A) on the side opposite the control box which can be removed along with the vertical support which separates the two. Removal of the vertical support is optional, but will ensure maximum airflow. On SLHG, SSHG models only one of the Panel A ’s may be used for horizontal supply

Figure AC-3 — Hor izontal Disc harg e Panel Dimensions — 90 - 130 Tonss SXHG, SLHG, SSHG Units

because of the location of the heating coil. Horizontal return is accomplished in much the same w ay as on S*HFs by removing the exhaust fan access door (Panel B). See Tables AC-4 and 5 for S*HG panel dimensions.

When using an IntelliPak® R ooftop for horizontal supply and return, an additional pressure drop must be added to the supply external static to account for the 90 degree turn the air is making. This additional pressure drop depends on airflow and rooftop size, but a range of 0.10 inc hes to 0.30 inches can be expected. The openings on the rooftop all have a one inch lip around the

perimeter to facilitate ductwork attac hment. If exhaust fans are being used on an IntelliPak Roof top unit with horizontal return, provisions should be made for access to the exhaust components, since the access door opening is now being used as a return. Perhaps the return ductwork attac hment to the rooftop can include a section of removable duct. Use the dimensions provided and the supply and exhaust CFM to calculate the velocity (ft/min) through the openings.

Horiz ontal Dischar g e SXHG, SLHG, SSHG Rooftops (90 t o 130 tons)

The SXHG, SLHG, SSHG rooftops can be field modified to supply and return air horizontally without the use of a horizontal supply/return curb.

To supply air horizontally, use Panel A only. The Panel on the opposite side cannot be used due to the location of the unit control Panel. SXHG rooftop air conditioners do not have a panel configuration like the 20 to 75 ton rooftops. To achieve maximum airflow, vertical support can be remo ved af ter the unit has been placed on the roof curb. It is secured by four screws. (See Note 1) For horizontal discharge on SLHG and SSHG units, only the Panel A next to the condenser fan section can be removed. The other Panel A next to the supply fan cannot be used due to the location of the heating coils.

To return air horizontally, the exhaust fan access door (Panel B) can be removed and used as a return opening.

Note:

1. SXHG units have two Panel A’s that can be removed. Once unit is installed, panel(s) and the 61/2” vertical support channel in between may be removed.

T able A C-4 — SXHG, SLHG, SSHG — Panel A and B Dimensions

Panel H (in.) W (in.) (in.2) (ft2)

A 72.7 27.5 1999 13.9

B 72.7 34.5 2508 17 . 4

Notes:

1. Add an extra 0.20-inches pressure drop to the supply external static to account for the extra turn the air is making.

2. The openings all have a 1.25-inch lip around the perimeter to facilitate ductwork attachment.

T otal Area (H X W)

T able AC-5 — SXHG, SLHG, SSHG — X, Y and Z Dimensions

Model X (in.) Y (in.) Z (in.)

S*HG 90-130 69.0 77.8 244.7

* = X, L, or S

3. If exhaust fans are being used, provisions should be made for access to the exhaust components, since the access door is now being used as a return.

4. Use the dimensions provided and the supply Cfm to calculate the velocity (ft/min) through the openings to be sure they are acceptable.

RT-PRC010-EN12

Application Considerations

High Capacity Evaporator Coil

Rooftops are popular because of their “pac kaged” nature. Everything needed is contained in one box; mix-matc hing is neither necessary nor available. With this convenience comes some disadvantages; one is the rooftop’s cooling capacity may not exactly match the building load. It is conceivable that a 50 ton rooftop would need to be used on an application that is 41 tons, simply because the 40 ton rooftop does not meet capacity.

In order to avoid suc h occurrences, and to more closely match the roof top’s capacity to the building load, a high capacity evaporator coil option is available on all IntelliPak® Ro oftops 20 to 105 tons. These high capacity coils have an increased number of evaporator coil rows as compared to standard and enhanced evaporator tube surfaces, resulting in a higher capacity. Capacity tables for both standard and high capacity coils are available in the cooling data section of this catalog. See T able PD-43 for the pressure drops associated with the high capacity coil option. This pressure drop should be added to the total static pressure used to size the supply fan motor.

Low Ambient Operation — Human Interface Recommendations

Who wants to be on a roof at sub-zero temperatures? We can understand a service technician’s reluctance to do this; that’s why we recommend using a remote mounted Human Interface Panel. The service technician can troubleshoot and diagnose in the comfort of a mechanical room.

Corr osive Atmospheres

T rane’s IntelliPak® R ooftops are designed and built to industrial standards and will perform to those standards for an extended period

depending on the hours of use, the quality of maintenance performed, and the regularity of that maintenance. One factor that can have an adverse effect on unit life is its operation in a corrosive environment.

When rooftops are operated in corrosive environments, T rane recommends that copper fins be utilized on the condenser and/or evaporator coil. Because copper is more resistant to corrosion than aluminum, coil life expectancy is greatly increased. Some industry applications expose equipment to corrosive agents that even copper cannot fully resist. For those special applications, a baked phenolic resin coating (i.e. Heresite) is highly desirable. Baked phenolic coatings or copper fins on the condenser and/or evaporator coils are available on T rane’s IntelliPak Rooftops.

V entilation Override Sequences

One of the benefits of using an exhaust fan rather than a return fan, in addition to the benefits of lower energy usage and improved building pressurization control, is that the rooftop can be used as part of a ventilation override system. Several types of sequences can be easily done when exhaust fans are a part of the rooftop system.

What would initiate the ventilation override control sequence? Typically, a manual switch is used and located near the fire protection control panel. This enables the fire department access to the control for use during or after a fire. It is also possible to initiate the sequence from a field-installed automatic smoke detector. In either case, a contact closure begins the ventilation override control sequence. CAUTION!: The ventilation

override system should not be used to signal the presence of smok e caused by a fire.

T rane can provide five (5) different ventilation override sequences on both

CV and V AV IntelliPak® Rooftops. For your convenience the sequences can be factory preset or fully field editable from the Human Interface Panel or T racer®. Any or all five sequences may be “loc ked” in by the user at the Human Interface Panel.

The user can customize up to five (5) different over ride sequences for purposes such as smoke control. The following parameters within the unit can be defined for each of the five sequences:

• Supply Fan — on/off

• Inlet Guide Vanes — open/closed/

controlling

• Var iable F r equency Dr iv es — on (60 Hz)/off (0 Hz)/controlling

• Exhaust Fan — on/off

• Exhaust Dampers — open/closed

• Economizer dampers — open/closed

• Heat — off/controlling (output f or) V AV Boxes — open/controlling

Compressors and condenser fans are shut down for any Ventilation Override sequence. Factory preset sequences include unit Off, Exhaust, Purge, Purge with duct pressure control, and Pressurization. An y of the user-defined Ventilation Over ride sequences can be initiated by closing a field supplied switch or contacts connected to an input on the Ventilation Override Module. If more than one ventilation override sequence is being requested, the sequence with the highest priority is initiated. Refer to the Sequence of Operation provided in the Control section of this catalog for more details on each over ride sequence.

Natural Gas Heating Considerations

The IntelliPak standard, or limited modulation, gas heat exc hangers are not recommended for applications with mixed air conditions entering the heat exchanger below 50°F. Mixed air temperatures below 50°F can cause condensation to form on the heat

13RT-PRC010-EN

Application Considerations

exchanger , leading to premature failure. For increased reliability , the recommendation in these applications is full modulation gas heat. For airflow limitations and temperature rise across the heat exchanger information, see Table PD-24, 25 and RT-EB-1 04.

Acoustical Considerations

The ideal time to make provisions to reduce sound transmission to the space is during the project design phase. Proper placement of rooftop equipment is critical to reducing transmitted sound levels to the building. The most economical means of avoiding an acoustical problem is to place any rooftop equipment away from acoustically critical area. If possible, rooftop equipment should not be located directly above areas such as: of fices, conference rooms, executive office areas and classrooms. Ideal locations are above corridors, utility rooms, toilet facilities, or other areas where higher sound levels are acceptable.

Several basic guidelines for unit placement should be followed to minimize sound transmission through the building structure:

Never cantilever the condensing section of the unit. A structural cross member must support this end of the unit.

Locate the unit’s center of gravity close to or over a column or main support beam to minimize roof deflection and vibratory noise.

If the roof structure is very light, roof joists should be replaced by a structural shape in the critical areas described above.

If several units are to be placed on one span, they should be staggered to reduce deflection over that span.

It is impossible to totally quantify the effect of building structure on sound transmission, since this depends on the response of the roof and building members to the sound and vibration of the unit components. However, the guidelines listed above are experience proven guidelines which will help reduce sound transmission.

There are several other sources of unit sound, i.e., supply fan, compressors, exhaust fans, condenser fans and aerodynamic noise generated at the duct fittings. Refer to the ASHRAE Applications Handbook, Chapter 42, 1991 edition for guidelines for minimizing the generation of aerodynamic noise associated with duct fittings.

T rane’s Engineering Bulletin RT-EB-80 describes various duct installation considerations specifically addressing indoor sound level concerns. This bulletin includes sound power data on T rane’s IntelliPak Rooftops 20 to 1 30 tons. Ask your local T rane representative for this informative engineering bulletin.

The V ariTrane® Computeriz ed Duct Design Program can be used to analyze the truck duct, run-out duct, VAV control unit and terminal unit noise attenuation. This program quantifies the airborne sound generation that can be expected in each terminal so that the designer can identify potential sound problems and make design alterations before equipment installation.

The Trane Acoustics Program (TAP) allows modeling of rooftop installation parameters. The output of this program shows the resulting indoor NC level for the modeled installation. This program is available from T rane’s Customer Direct Service Network™ (C.D.S.), ask your local T rane representative for additional information on this program.

Clearance Requirements

The recommended clearances identified with unit dimensions should be

maintained to assure adequate serviceability, maximum capacity and peak operating efficiency. A reduction in unit clearance could result in condenser coil starvation or warm condenser air recirculation. If the clearances shown are not possible on a particular job, consider the following:

• Do the clearances available allow for major service work such as c hanging compressors or coils?

• Do the clearances available allow for proper outside air intake, exhaust air removal and condenser airflow?

• If screening around the unit is being used, is there a possibility of air recirculation from the exhaust to the outside air intake or from condenser exhaust to condenser intake?

Actual clearances which appear inadequate should be reviewed with a local T rane sales engineer .

When two or more units are to be placed side by side, the distance between the units should be increased to 150 percent of the recommended single unit clearance. The units should also be staggered as shown in Figure AC-4 for two reasons:

To reduce span deflection if more than one unit is placed on a single span. Reducing deflection discourages sound transmission.

To assure proper diffusion of exhaust air before contact with the outside air intake of adjacent unit.

RT-PRC010-EN14

Application Considerations

Duct Design

It is important to note that the rated capacities of the rooftop can be met only if the rooftop is properly installed in the field. A well-designed duct system is essential in meeting these capacities.

The satisfactory distribution of air throughout the system requires that there be an unrestricted and uniform airflow from the rooftop disc harge duct. This discharge section should be straight for at least several duct diameters to allow the conversion of fan energy from velocity pressure to static pressure.

However, when job conditions dictate elbows be installed near the rooftop outlet, the loss of capacity and static pressure may be reduced through the use of guide vanes and proper direction of the bend in the elbow. The high velocity side of the rooftop outlet should be directed at the outside radius of the elbow rather than the inside as illustrated in Figure AC-5.

Figure AC-4 — Unit Placement

1. 20-40 ton models have only one outdoor air intake. 50 - 75 ton models have two outdoor air intakes.

2. 90-130 ton models have two outdoor air intakes on the backside of the unit and one small air intake at the end of the unit.

Improper

Figure AC-5 — Duct Design

Proper

15RT-PRC010-EN

Selection Pr ocedure

This section outlines a step-by-step procedure that may be used to select a T rane single-zone air conditioner. The sample selection is based on the following conditions:

• Summer outdoor design conditions — 95 DB/76 WB ambient temperature

• Summer room design conditions —78 DB/65 WB

• T otal cooling load — 430 MBh (35.8 tons)

• Sensible cooling load — 345 MBh (28.8 tons)

• Outdoor air ventilation load — 66.9 MBh

• Return air temperature — 80 DB/65 WB

Winter Design:

• Winter outdoor design conditions —0 F

• Return air temperature — 70 F

• T otal heating load — 475 MBh

• Winter outdoor air ventilation load — 133 MBh

Air Delivery Data:

• Supply fan cfm — 17,500 cfm

• External static pressure — 1.2 in wg

• Minimum outdoor air ventilation — 1,750 cfm

• Exhaust fan cfm — 12,000 cfm

• Return air duct negative static pressure — 0.65 in wg

Electrical Character istics:

• Voltage/cycle/phase — 460/60/3 Unit Accessories:

• Gas fired heat exchanger — high heat module

• Throwaway filters

• Economizer

• Modulating 100 percent exhaust/ return fan

COOLING CAP A CITY SELECTION Step 1 — Nominal Unit Size Selection

A summation of the peak cooling load and the outside air ventilation load shows: 430 MBh + 66.9 MBh = 496.9 MBh required unit capacity. F rom

Table PD-9, a 50 ton unit capacity with standard capacity evaporator coil at 80 DB/65 WB, 95 F outdoor air temperature and 17,500 total supply cfm is 551 MBh total and 422 MBh sensible. Thus, a nominal 50 ton unit with standard capacity evaporator coil is selected.

Step 2 — Evapor ator Coil Ent er ing Conditions

Mixed air dry bulb temperature determination:

Using the minimum percent of OA (1,750 cfm ÷ 17,500 cfm = 10 percent), determine the mixture dry bulb to the evaporator.

RADB + % OA (O ADB - RADB) = 80 + (0.10) (95 - 80) = 80 + 1.5 = 81 .5 F

Approximate wet bulb mixture temperature:

RAWB + % O A (O A WB - RA WB) = 65 + (0.10) (7 6 - 65) = 65 + 1.1 = 66.1 F

Step 3 — Determine Supply Fan Motor Heat Gain

Having selected a nominal 50 ton unit, the supply fan bhp can be calculated. The supply fan motor heat gain must be considered in final determination of unit capacity.

Supply Air Fan Determine unit total static pressur e at

design supply cfm:

External Static Pressure 1.2 inches Evaporator Coil 0.25 inches (Table PD-43) Return Duct Negative 0.65 inches Static Pressure Heat Exchanger 0.31 inches (Table PD-43) Throwaway Filter 0.10 inc hes (Table PD-43) Economizer w/Exhaust Fan0.12 inches (Table PD-43) T rane Roof Curb 0.13 inches (Table PD-43) Unit T otal Static P ressure 2.7 6 inches

Using total of 17,500 cfm and total static pressure of 2.76 inches, enter Table PD-36. T able PD-36 shows 1 5.3 bhp with 924 rpm.

From Chart SP-1 supply fan motor heat gain = 46.0 MBh.

Step 4 — Determine Total Required Cooling Capacity

Required capacity = Total peak load + OA load + supply air fan motor heat.

Required capacity = 430 + 66.9 +

46.0 = 543 MBh (45.2 tons)

Step 5 — Determine Unit Capacity

From Table PD-9, unit capacity at 81.5 DB/

66.1 WB entering the evaporator, 17,500 supply air cfm, 95 F outdoor ambient, is 561 MBh (45.8 tons) with 426 MBh sensible.

Step 6 — Deter mine Lea ving Air Temperature

Unit sensible heat capacity corrected for supply air fan motor heat = 426 MBh - 46 MBh = 380 MBh. Supply air dry bulb temperature difference =

Sensible Btu =

1.085 x Supply cfm 380 MBh ÷ (1.085 x 17,500 cfm)

= 20.0 F Supply air dry bulb = 81.5 DB - 20.0

= 61.5 F Unit enthalpy difference =

Total Btu =

4.5 x Supply cfm 561 MBh ÷ (4.5 x 17,500 cfm) =

7.12 Btu/lb Leaving enthalpy = h(ent WB) -

h(diff). From Table 21-1 h(ent WB) =

30.9 Btu/lb Leaving enthalpy = 30.9 Btu/lb - 7.12

Btu/lb = 23.78 Btu/lb Supply air wet bulb = 55.9 Leaving air temperature = 61.5

DB/55.9 WB

RT-PRC010-EN16

Selection Pr ocedure

HEA TING CAPACITY SELECTION Step 1 — Determine Air Temperatur e

Entering Heating Module

Mixed air temperature = RADB + % OA (OADB - RADB) = 70 + (0.10) (0 - 70) = 63 F

Supply air fan motor heat temperature rise = 46,000 Btu ÷ (1 .085 x 1 7,500 cfm) =

2.42 F Air temperature entering heating

module = 63.0 + 2.42 = 65.4 F

Step 2 — Deter mine Total Winter Heating Load

Total winter heating load = peak heating load + ventilation load - supply fan motor heat = 475 + 133 - 46.0 = 562 MBh

Electric Heating System

Unit operating on 460/60/3 power supply. From Table PD-30, kw may be selected

for a nominal 50 ton unit operating 460-volt power. The 170 kw heat module

(580.1 MBh) will satisfy the winter heating load of 563 MBh.

Table PD-28 shows an air temperature rise of 30.6 F for 17,500 cfm through the 170 kw heat module.

Unit supply temperature at design heating conditions = mixed air temperature + air temperature rise = 65.4 F + 30.6 F = 96.0 F.

Gas Heating System (Natural Gas)

From Table PD-24 select the high heat module (697 MBh output) to satisfy winter heating load of 563 MBh at unit cfm.

Table PD-26 also shows an air temperature rise of 36.0 F for 17,500 cfm through the heating module.

Unit supply temperature at design heating conditions = mixed air temperature + air temperature rise = 65.4 F + 36.0 F = 10 1.4 F.

Hot Water Heating

Assume a hot water supply temperature of 190 F. Subtract the mixed air temperature from the hot water temperature to determine the ITD (initial temperature difference).

Chart SP-1 — Fan Motor Heat

120 110 100

90 80 70 60 50 40

FAN MOTOR HEAT - MBH

30 20 10

0 5 10 15 20 25 30 35 40

MOT OR BRAKE HO RSE POW ER

ITD = 190 F - 65.4 F = 125 F. Divide the winter heating load by ITD = 563 MBh ÷ 125 F = 4.50 Q/ITD.

From Table PD-31, select the low heat module. By interpolation, a Q/ITD of 4.50 can be obtained at a gpm at 25.7.

Water pressure drop at 25.7 gpm is 0.57 ft. of water . Heat module temperature rise is determined by:

Total Btu = ∆T

1.085 x Supply cfm 563,000 = 29.7 F

(1.085 x 17,500)

Unit supply air temperature = mixed air temperature + air temperature rise = 65.4 + 29.7 = 95 F.

Steam Heating System

Assume a 15 psig steam supply . From Table PD-27, the saturated

temperature steam is 250 F. Subtract mixed air temperature from the steam

STANDARD MOTOR HIGH EFF ICIENCY MOTOR

temperature to determine ITD. ITD = 250 F - 65.4 F = 185 F.

Divide winter heating load by ITD = 563 MBh ÷ 185 F = 3.04 Q/ITD.

From Table PD-26, select the high heat module. The high heat module at 17,500 cfm has a Q/ITD = 5.11. Heat module capacity, Q = ITD x Q/ITD = 185 F x 5.11 Q/ITD = 945 MBh

Heat module air temperature rise =

Total Btu 1 .085 x Supply cfm 945 Btu ÷ (1 .085 x 17,500 cfm) = 49.8 F. Unit supply temperature at design

conditions = mixed air temperature + air temperature rise = 65.4 F + 49.8 F = 115 F.

17RT-PRC010-EN

Selection Pr ocedure

AIR DELIVERY PROCEDURE

Supply fan performance tables include internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drop (evaporator coil, filters, optional economizer , optional exhaust fan, optional heating system, optional cooling only extended casing, optional roof curb).

Supply Fan Motor Sizing

The supply fan motor selected in the cooling capacity determination was 15.3 bhp and 924 rpm. Thus, a 20 hp supply fan motor is selected. Enter T able PD-45 to select the proper drive. For a 50 ton rooftop with 20 hp motor , a drive number 9 — 900 rpm is selected.

Exhaust Fan Motor Sizing

The exhaust fan is selected based on total return system negative static pressure and exhaust fan cfm. Return system negative static include return duct static and roof curb static pressure drop.

Return duct static pressure = 0.65 inches T rane roof curb (Table PD-43) = 0.12

inches Total return system negative static

pressure = 0.77 inches Exhaust fan cfm = 12,000 cfm From Table PD-47, the required bhp is

3.45 hp at 574 rpm. Thus, the exhaust fan motor selected is 5 hp.

To select a drive, enter T able PD-49 for a 5 hp motor for a 50 ton unit. Drive selection number 6 — 600 rpm.

Where altitudes are significantly above sea level, use T ables PAF-2 and PAF-3 and Figure P AF-1 for applicable correction factors.

UNIT ELECTRICAL REQUIREMENTS

Selection procedures for electrical requirements for wire sizing amps, maximum fuse sizing, and dual element fuses are given in the electrical service section of this catalog.

Altitude Corrections

The rooftop performance tables and curves of this catalog are based on standard air (.075 lbs/ft). If the rooftop airflow requirements are at other than standard conditions (sea level), an air density correction is needed to project accurate unit performance.

Figure P AF-1 shows the air density ratio at various temperatures and elevations. T rane rooftops are designed to operate between 40 and 90 degrees Fahrenheit leaving air temperature.

The procedure to use when selecting a supply or exhaust fan on a rooftop for elevations and temperatures other than standard is as follows:

First, determine the air density ratio using Figure P AF-1.

Divide the static pressure at the nonstandard condition by the air density ratio to obtain the corrected static pressure.

Use the actual cfm and the corrected static pressure to determine the fan rpm and bhp from the rooftop performance tables or curves.

The fan rpm is correct as selected.

Bhp must be multiplied by the air density ratio to obtain the actual operating bhp.

RT-PRC010-EN18

Selection Pr ocedure

In order to better illustrate this procedure, the following example is used:

Consider a 60 ton rooftop unit that is to deliver 18,000 actual cfm at 3-inches total static pressure (tsp), 55 F leaving air temperature, at an elevation of 5,000 ft.

From Figure PAF-1, the air density ratio is

0.86.

Tsp = 3.0-inches / 0.86 = 3.49 inc hes tsp.

From the performance tables: a 60 ton rooftop (without inlet vanes) will deliver 18,000 cfm at 3.49-inches tsp at 906 rpm and 21 .25 bhp.

The rpm is correct as selected - 906 rpm.

Bhp = 21 .25 x 0.86 = 18.3 bhp actual. Compressor MBh, SHR, and kw should

be calculated at standard and then converted to actual using the correction factors in Table PAF-2. Apply these factors to the capacities selected at standard cfm so as to correct for the reduced mass flow rate across the condenser.

Heat selections other than gas heat will not be affected by altitude. Nominal gas capacity (output) should be multiplied by the factors given in Table PAF -3 before calculating the heating supply air temperature.

HEA TING CAPACITY SELECTION Step 1 — Determine Air Temperatur e

Entering Heating Module

Mixed air temperature = RADB + % OA (OADB - RADB) = 70 + (0.10) (0 - 70) = 63 F

Supply air fan motor heat temperature rise = 46,000 Btu ÷ (1 .085 x 1 7,500 cfm) =

2.42 F Air temperature entering heating

module = 63.0 + 2.42 = 65.4 F

19RT-PRC010-EN

Model Number Description

S F H F C 5 5 F H A 5 5 C 6 9 D 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 7 8 9 10 1112131415161718192021222324252627 28 29 30 31 32 33 34 35 36 37 38

DIGIT 1 — UNIT TYPE

S = Self-Contained (Packaged Rooftop)

DIGIT 2 — UNIT FUNCTION

A = DX Cooling, No Heat E = DX Cooling, Electric Heat F = DX Cooling, Natural Gas Heat L = DX Cooling, Hot Water Heat S = DX Cooling, Steam Heat X = DX Cooling, No Heat, Extended Casing

DIGIT 3 — UNIT AIRFLOW

H = Single Zone

DIGIT 4 — DEVELOPMENT SEQUENCE

F = Sixth

DIGITS 5,6,7 — NOMINAL CAPACITY

C20 = 20 Tons C55 = 55 Tons C25 = 25 Tons C60 = 60 Tons C30 = 30 Tons C70 = 70 Tons C40 = 40 Tons C75 = 75 Tons C50 = 50 Tons

DIGIT 8 — POWER SUPPLY (See Notes) 4 = 460/60/3 XL E = 200/60/3 XL 5 = 575/60/3 XL F = 230/60/3 XL

Note: SEHF units (units with electric heat) utilizing 208V or 230V require dual power source.

DIGIT 9 — HEATING CAPACITY

Note: When the second digit calls for “F” (Gas Heat), the following values apply: Additionally, please note G and M available ONLY on 50 Ton models and above.

H = High Heat-2-Stage P = High Heat-Full L = Low Heat-2-Stage Modulation 0 = No Heat M = Low Heat-Full J = High Heat-Limited Modulation

Modulation

G = Low Heat-Limited

Modulation

Note: When the second digit calls for “E” (electric heat), the following values apply:

D = 30 KW R = 130 KW H = 50 KW U = 150 KW L = 70 KW V = 170 KW N = 90 KW W = 190 KW Q = 110 KW

Note: When the second digit calls for ‘’L’’ (Hot Water) or ‘’S’’(Steam) Heat, one of the following valve size values must be in Digit 9:

High Heat Coil: 1 = .50”, 2 = .75”, 3 = 1”, 4 = 1.25”, 5 = 1.5”, 6 = 2”. Low Heat Coil: A = .50”, B = .75”, C = 1”, D = 1.25”, E = 1.5”, F = 2”.

DIGIT 10 — DESIGN SEQUENCE

A = First (Factory Assigned)

Note: Sequence may be any letter A thru Z, or any digit 1 thru 9.

DIGIT 11 — EXHA UST OPTION

0 = None 1 = Barometric 2 = 100%, 1.5 HP W/Statitrac 3 = 100%, 3 HP W/Statitrac 4 = 100%, 5 HP W/Statitrac 5 = 100%, 7.5 HP W/Statitrac 6 = 100%, 10 HP W/Statitrac 7 = 100%, 15 HP W/Statitrac 8 = 100%, 20 HP W/Statitrac A = 50%, 1.5 HP B = 50%, 3 HP C = 50%, 5 HP D = 50%, 7.5 HP E = 100%, 1.5 HP W/O Statitrac (CV Only) F = 100%, 3 HP W/O Statitrac (CV Only) G = 100%, 5 HP W/O Statitrac (CV Only) H = 100%, 7.5 HP W/O Statitrac (CV Only) J = 100%, 10 HP W/O Statitrac (CV Only) K = 100%, 15 HP W/O Statitrac (CV Only) L = 100%, 20 HP W/O Statitrac (CV Only)

DIGIT 12 — EXHAUST AIR FAN DRIVE

0 = None 8 = 800 RPM 4 = 400 RPM 9 = 900 RPM 5 = 500 RPM A = 1000 RPM 6 = 600 RPM B = 1100 RPM 7 = 700 RPM

DIGIT 13 — FILTER

A = Throwaway B = Cleanable Wire Mesh C = High-Efficiency Throwaway D = Bag With Prefilter E = Cartridge With Prefilter F = Throwaway Filter Rack Less Filter Media G = Bag Filter Rack Less Filter Media

DIGIT 14 — SUPPLY AIR FAN HP

1 = 3 HP 4 = 10 HP 7 = 25 HP 2 = 5 HP 5 = 15 HP 8 = 30 HP 3 = 7.5 HP 6 = 20 HP 9 = 40 HP

DIGIT 15 — SUPPLY AIR FAN DRIVE

5 = 500 RPM B = 1100 RPM 6 = 600 RPM C = 1200 RPM 7 = 700 RPM D = 1300 RPM 8 = 800 RPM E = 1400 RPM 9 = 900 RPM F = 1500 RPM A= 1000 RPM G = 1600 RPM

DIGIT 16 — FRESH AIR

A = No Fresh Air B = 0-25% Manual D = 0-100% Economizer

DIGIT 17 — SYSTEM CONTROL

1 = Constant Volume Control 2 = VAV Supply Air Temperature Control

w/o Inlet Guide Vanes

3 = VAV Supply Air Temperature Control

w/ Inlet Guide Vanes

4 = Space Pressure Control with Exhaust

VFD w/o Bypass

5 = Space Pressure Control with Exhaust

VFD and Bypass

6 = VAV Supply Air Temperature Control

with VFD w/o Bypass

7 = VAV Supply Air Temperature Control

with VFD and Bypass

8 = Supply and Exhaust Fan with VFD

w/o Bypass

9 = Supply and Exhaust Fan with VFD

and Bypass

DIGIT 18 — ACCESSOR Y PANEL

0 = None A = BAYSENS008* B = BAYSENS010* C = BA YSENS013* D = BA YSENS014* E = BAYSENS019* F = BAYSENS020* G = BAYSENS021*

DIGIT 19 — AMBIENT CONTROL

0 = Standard 1 = 0° Fahrenheit

DIGIT 20 — AGENCY APPROVAL

0 = None (UL Gas Heater, see note) 1 = UL 2 = CSA

Note: Includes UL classified gas heating section only when second digit of Model No. is a “F.”

DIGITS 21 - 38 — MISCELLANEOUS

21 A = Unit Disconnect Switch 22 B = Hot Gas Bypass 23 D = Economizer Control w/

23 R = Economizer Control w/ 23 T = Economizer Control w/Dry Bulb

24 E = Low Leak Fresh Air Dampers 25 F = High Duct Temperature

26 G = High Capacity Evap. Coil 27 H = Copper Fins (Cond. Only) 28 K = Generic B.A.S. Module 29 L = High-Efficiency Motors (Supply

30 M = Remote Human Interface 31 N = Ventilation Override Module 32 R = Extended Grease Lines 33 T = Access Doors 34 V = Inter-Processor Communica

35 Y = Tr ane Communication 36 8 = Spring Isolators

37 6 = Factory-Powered 15A GFI 38 5 = VFD Line Reactor

Comparative Enthalpy Reference Enthalpy

Thermostat

and Exhaust)

tion Bridge Interface Module

Convenience Outlet

RT-PRC010-EN20

Model Number Description

S X H G D 1 1 4 O A H 7 C F 9 D 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 3 4 567 8 9 10111213141516171819 2021222324252627 282930313233343536

DIGIT 1 — UNIT TYPE

S = Self-Contained (Packaged Rooftop)

DIGIT 2 — UNIT FUNCTION

E = DX Cooling, Electric Heat F = DX Cooling, Natural Gas Heat L = DX Cooling, Hot Water Heat S = DX Cooling, Steam Heat X = DX Cooling, No Heat, Extended Casing

DIGIT 3 — UNIT AIRFLOW

H = Single Zone

DIGIT 4 — DEVELOPMENT SEQUENCE

G = Seventh

DIGITS 5,6,7 — NOMINAL CAPACITY

C90 = 90 Tons D11 = 105 Tons D12 = 115 T ons D13 = 130 Tons

DIGIT 8 — POWER SUPPLY

4 = 460/60/3 XL 5 = 575/60/3 XL E = 200/60/3 XL F = 230/60/3 XL

DIGIT 9 — HEATING CAPACITY

0 = No Heat H = High Heat - 2-Stage J = High Heat - Limited Modulation P = High Heat - Full Modulation

Note: When the second digit calls for “E” (electric heat), the following values apply in the ninth digit:

W = 190 KW

When the second digit calls for ‘’L’’ or ‘’S’’, one of the following valve size values must be in Digit 9:

High Heat Coil: 3 = 1.0”, 4 = 1.25”, 5 =

1.50”, 6 = 2.0”, 7 = 2.5” Low Heat Coil: C = 1.0”, D = 1.25”, E =

1.50”, F = 2.0”, G = 2.5”

DIGIT 10 — DESIGN SEQUENCE

A = First (Factory Assigned)

Note: Sequence may be any letter A thru Z, or any digit 1 thru 9.

DIGIT 11 — EXHAUST OPTION

0 = None 7 = 100%, 15 HP W/Statitrac

1. EXAMPLE: Model numbers: SFHFC55FHA55C69D3001N describes a unit with the following characteristics: DX cooling with natural gas heating, 55 ton nominal cooling capacity, 230/60/3 power supply, high heat model. 100 percent exhaust with Statitrac, 7.5 HP exhaust fan motor with drive selection No. 5 (500 RPM), high-efficiency throwaway filters, 20 HP supply fan motor with drive selection No. 9 (900 RPM), 0-100% economizer, VAV supply air temperature control with inlet guide vanes, no remote panel, standard ambient control, U.L. agency approval. The service digit for each model number contains 38 digits; all 38 digits must be referenced.

2. EXAMPLE: Model numbers: SXHGD1140AH7CF8D3001 describes a unit with the following characteristics: DX cooling with extended casing, no heat, 105 ton nominal cooling capacity, 460/60/3 power supply, no heat, 100 percent exhaust with Statitrac, 30 h.p. exhaust fan motor with drive selection No. 7 — (700 RPM), high-efficiency throwaway filters, 60 hp supply fan motor with drive selection No. 8 — (900 RPM), economizer, VAV supply air temperature control with inlet guide vanes, no remote panel, standard ambient, UL agency approval. The service digit for each model number contains 36 digits; all 36 digits must be referenced.

3. Available as standard 460 volt only for 70 and 75 ton models.

8 = 100%, 20 HP W/Statitrac 9 = 100%, 25 HP W/Statitrac F = 50%, 15 HP H = 100%, 30 HP W/Statitrac J = 100%, 40 HP W/Statitrac K = 100%, 15 HP W/O Statitrac (CV Only) L = 100%, 20 HP W/O Statitrac (CV Only) M = 100%, 25 HP W/O Statitrac (CV Only) N = 100%, 30 HP W/O Statitrac (CV Only) P = 100%, 40 HP W/O Statitrac (CV Only)

DIGIT 12 — EXHAUST AIR FAN DRIVE

0 = None 5 = 500 RPM 6 = 600 RPM 7 = 700 RPM 8 = 800 RPM

DIGIT 13 — FILTER

A = Throwaway C = High-Efficiency Throwaway D = Bag With Prefilter E = Cartridge With Prefilter F = Throwaway Filter Rack Less Filter

Media

G = Bag Filter Rack Less Filter Media

DIGIT 14 — SUPPLY AIR FAN HP

C = 30 HP (2-15 HP) D = 40 HP (2-20 HP) E = 50 HP (2-25 HP) F = 60 HP (2-30 HP) G = 80 HP (2-40 HP)

DIGIT 15 — SUPPLY AIR FAN DRIVE

9 = 900 RPM A = 1000 RPM B= 1100 RPM C= 1200 RPM D= 1300 RPM E= 1400 RPM F= 1500 RPM G= 1600 RPM

DIGIT 16 — FRESH AIR

D = 0-100% Economizer (Std.)

DIGIT 17 — SYSTEM CONTROL

1 = Constant Volume Control 2 = VAV Supply Air Temperature Control

w/o Inlet Guide Vanes

3 = VAV Supply Air Temperature Control

w/ Inlet Guide Vanes

4 = Space Pressure Control with Exhaust

VFD w/o Bypass

5 = Space Pressure Control with Exhaust

VFD and Bypass

6 = VAV Supply Air Temperature Control

with VFD w/o Bypass

7 = VAV Supply Air Temperature Control

with VFD and Bypass

8 = Supply and Exhaust Fan with VFD

w/o Bypass

9 = Supply and Exhaust Fan with VFD

and Bypass

DIGIT 18 — ACCESSOR Y PANEL

0 = None A = BAYSENS008* B = BAYSENS010* C = BA YSENS013* D = BA YSENS014* E = BAYSENS019* F = BAYSENS020* G = BAYSENS021*

DIGIT 19 — AMBIENT CONTROL

0 = Standard

DIGIT 20 — AGENCY APPROVAL

0 = None (UL Gas Heater, see note) 1=UL 2 = CSA

Note: Includes UL classified gas heating section only, when second digit of Model No. is a “F.”

DIGITS 21 - 36 — MISCELLANEOUS

21 A = Unit Disconnect Switch 22 B = Hot Gas Bypass (CV Only) 23 D = Economizer Control w/

Comparative Enthalpy

23 R = Economizer Control w/

Reference Enthalpy 23 T = Economizer Control w/Dry Bulb 24 E = Low Leak Fresh Air Dampers 25 F = High Duct Temperature

Thermostat 26 G = High Capacity Evaporator

Coil (90-105 Only) 27 K = Generic B.A.S. Module 28 L = High-Efficiency Motors

(Supply and Exhaust) 29 M = Remote Human Interface 30 N = Ventilation Override Module 31 R = Extended Grease Lines 32 T = Access Doors 33 V = Inter-Processor

Communication Bridge 34 Y = Trane Communication

Interface Module 35 5 = VFD Line Reactor 36 6 = Factory-Powered 15A GFI

Convenience Outlet

21RT-PRC010-EN

General Data

Table GD-1— General Data — 20-40 Tons

Compressor Data

Number/Size (Nominal) 2/10 Ton 1/10 Ton, 1/15 Ton 2/15 To n 4/10 Ton Model Scroll Scroll Scroll Scroll Unit Capacity Steps (%) 100/50 100/40 100/50 100/75/50/25 RPM 3450 3450 3450 3450

Evaporator Fans

Number/Size/Type 2/15”/FC 2/15”/FC 2/18”/FC 2/20”/FC

Number of Motors 1111 Hp Range 3-15 3-15 5-20 7 Cfm Range ESP Range — (In. WG) 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0

Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100%

Number/Size/Type 1/15”/FC 2/15”/FC 1/15”/FC 2/15”/FC 1/15”/FC 2/15”/FC 1/18”/FC 2/18”/FC Hp Range 1.5-3 1.5-3 1.5-3 3-5 3-5 3-7.5 5-7.5 5-10 Cfm Range 2000-6000 4000-10000 2000-6000 4000-12000 2000-7000 4000-14000 3000-11000 7500-16000 ESP Range — (In. WG) 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0

Condenser Fans

Number/Size/Type 2/26”/Prop. 3/26”/Prop. 3/26”/Prop. 4/26”/Prop. Hp (Each) 1.0 1.0 1.0 1.0 Cfm 14000 18300 20900 28200 Cycle/Phase 60/3 60/3 60/3 60/3

Evaporator Coil — Standard

Size (Ft

) 20.3 20.3 24.4 32.5 Rows/Fin Series 2/148 2/148 3/148 2/148 Tube Diameter/Surface

Evaporator Coil — High Capacity

Size (Ft2) 20.3 20.3 24.4 32.5 Rows/Fin Series 4/148 4/148 4/148 4/148 Tube Diameter/Surface

Condenser Coil (Aluminum Fins)

Size (Ft

) 35.0 35.0 46.3 63.2 Rows/Fin Series/Tube Diameter 3/144/

Copper Condenser Fins (Optional) 3/144/ 3/ Electric Heat

KW Range Capacity Steps: 3333

Natural Gas Heat

Standard Gas Heat Low Heat Input 235 235 350 350 High Heat Input 500 500 500 850 Standard Heating Capacity Steps: 2222 Modulating Gas Heat (Not Available on 20-40 Ton Models with Low Heat) High Heat - Limited Modulation

High Heat - Full Modulation

Heat Exchanger Ty pe Standard Standard Standard Standard

Heat Exchanger Type High Grade, High Grade, High Grade, High Grade,

Hot Water Coil

Size (Inches) 30x66x2 Row 30x66x2 Row 30x66x2 Row 42x66x2 Row Type T ype W, Prima Flo Type W, Prima Flo Type W, Prima Flo Type W, Prima Flo High Heat (Fins/Ft) 110 110 110 110 Low Heat (Fins/Ft) 80 80 80 80

Steam Coil

Size (Inches) 30x66x1 Row 30x66x1 Row 30x66x1 Row 30x66x1 Row & 12x66x1 Row Type Type NS Type NS Type NS Type NS High Heat (Fins/Ft) 96 96 96 96 Low Heat (Fins/Ft) 42 42 42 42

20 T on 25 Ton 30 T on 40 T on

4000-9000 5000-11000 6000-13500 8000-18000

/2/Enhanced

3/144/ 3/

/2/Enhanced

3/144/ 3/

/2-30

/2/Enhanced

3/144/ 3/

30-110 30-130 30-150 50-170

33% 33% 33% 33%

100% 100% 100% 100%

Stainless Steel Stainless Steel Stainless Steel Stainless Steel

RT-PRC010-EN22

General Data

Table GD-1— Gener al D ata — 20-40 T ons Continued

Filters

Panel Filters Number/Size (Inches) 12 — 20x20x2 12 — 20x20x2 16 — 20x20x2 16 — 20x25x2 Face Area (Ft Bag Filters Number/Size (Inches) 4 — 12x24x19 4 — 12x24x19 2 — 12x24x19 5 — 12x24x19

Cartridge Filters 4 — 12x24x12 4 — 12x24x12 2 — 12x24x12 5 — 12x24x12 Prefilters (For Bag & Cartridge) 4 — 12x24x2 4 — 12x24x2 2 — 12x24x2 5 — 12x24x2 Face Area (Ft

Standard Unit Minimum Outside Air Temperature For Mechanical Cooling

Without Hot Gas Option 55 F 50 F 50 F 55 F With Hot Gas Option 55 F 50 F 50 F 55 F

Low Ambient Option Minimum Outside Air Temperature

Without Hot Gas Option 0 F 0 F 0 F 0 F

With Hot Gas Option 10 F 10 F 1 0 F 10 F

Notes:

1. For cfm values outside these ranges, refer to RT-EB-104.

2. Refer to Table PD-30 for availability of electric heat kw ranges by voltage.

3. 20-30 Ton models are single circuit, 40 Ton models are dual circuit.

4. The firing rate of the unit can vary from 33% of the Heater Mbh up to the nameplate rating of the unit.

5. The firing rate of the unit can vary from pilot rate of 125,000 Btuh up to the nameplate rating of the unit.

) 33.3 33.3 44.4 55.5

) 20.0 20.0 28.0 34.0

20 Ton 25 Ton 30 T on 40 Ton

3 — 24x24x19 3 — 24x24x19 6 — 24x24x19 6 — 24x24x19 3 — 24x24x12 3 — 24x24x12 6 — 24x24x12 6 — 24x24x12

3 — 24x24x2 3 — 24x24x2 6 — 24x24x2 6 — 24x24x2

23RT-PRC010-EN

General Data

Table GD-2 — General Data — 50-75 Tons

Compressor Data

Number/Size (Nominal) 2/10, 2/15 Ton 4/15 Ton 4/15 T on 4/10, 2/15 Ton 4/10, 2/15 Ton 4/10, 2/15 Ton Model Scroll Scroll Scroll Scroll Scroll Unit Capacity Steps (%) 100/80/60/30 100/75/50/25 100/75/50/25 100/72/44/22 100/72/44/22 RPM 3450 3450 3450 3450 3450

Evaporator Fans

Number/Size/Type 2/20”/FC 2/20”/FC 2/22”/FC 2/22”/FC 2/22”/FC

Number of Motors 1 1 1 1 1

Hp Range 7 Cfm Range ESP Range — (In. WG) 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0 0.25-4.0

Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100% 50% 100%

Number/Size/Type 1/18”/FC 2/18”/FC 1/18”/FC 2/18”/FC 1/20”/FC 2/20”/FC 1/20”/FC 2/20”/FC 1/20”/FC 2/20”/FC Hp Range 5-7.5 5-15 5-7.5 5-15 5-7.5 5-20 5-7.5 5-20 5-7.5 5-20 Cfm Range 3000-11000 9000-20000 3000-11000 10000-21500 4000-13000 12000-27000 4000-13000 12000-27000 4000-13000 12000-27000 ESP Range — (In. WG) 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0 0.25-1.4 0.2-2.0

Condenser Fans

Number/Size/Type 6/26”/Prop 6/26”/Prop 6/26”/Prop 6/26”/Prop 6/26”/Prop Hp (Each) 1.0 1.0 1.0 1.0 1.0 Cfm 36600 36600 40800 40800 40800 Cycle/Phase 60/3 60/3 60/3 60/3 60/3

Evaporator Coil — Standard

Size (Ft.2) 37.9 37.9 43.1 43.1 43.1 Rows/Fin Series 3/148 3/148 2/164 3/180 4/148 Tube Diameter/Surface

Evaporator Coil — High Capacity

Size (Ft2) 37.9 37.9 43.1 43.1 Rows/Fin Series 4/148 4/148 4/148 NA 5/148 Tube Diameter/Surface

Condenser Coil (Aluminum Fins)

Size (Ft.2) 70.0 70.0 88.0 88.0 88.0 Rows/Fin Series/Tube Diameter 3/144/

Copper Condenser Fins (Optional) 3/144/ 3/ Electric Heat

KW Range Capacity Steps: 3 3 3 3 3

Natural Gas Heat

Standard Gas Heat

Modulating Gas Heat

Low Heat Input 500 500 500 500 500 High Heat Input 850 850 850 850 85 0 Standard Heating Capacity Steps: 2 2 2 2 2

High/Low Heat - Limited Modulation Heat Exchanger Ty pe Standard Standard Standard Standard Standard High/Low Heat - Full Modulation Heat Exchanger Type High Grade, High Grade, High Grade, High Grade, High Grade,

Hot Water Coil

Size (Inches) 42x66x2 Row 42x66x2 Row 42x90x2 Row 42x90x2 Row 42x90x2 Row Type Type W, Prima Flo Type W, Prima Flo Type W, Prima Flo T ype W, Prima Flo Type W , Prima Flo High Heat (Fins/Ft) 110 110 110 110 110 Low Heat (Fins/Ft) 80 80 80 80 80

Steam Coil

Size (Inches) 30x66x1 Row 30x66x1 Row 30x90x1 Row 30x90x1 Row 30x90x1 Row

Type Type NS Type NS Type NS Type NS Type NS High Heat (Fins/Ft) 96 96 72 72 72 Low Heat (Fins/Ft) 42 42 42 42 42

50 T on 55 T on 60 T on 70 Ton 75 T on

Standard High Capacity

/2-30 71/2-30 10-40 10-40

10000-22500 12000-24000 14000-27000 16000-27000 16000-27000

/2/Enhanced

4/144/ 3/

3/144/ 3/

/2/Enhanced

4/144/ 3/

3/144/ 3/

/2/Enhanced

4/144/ 3/

3/144/ 3/

10-40

/2/Enhanced

3/144/ 3/

70-190 70-190 90-190 90-190 90-190

33% 33% 33% 33% 33%

100% 100% 100% 100% 100%

Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel

12x66x1 Row 12x66x1 Row 12x90x1 Row 12x90x1 Row 12x90x1 Row

RT-PRC010-EN24

General Data

Table GD-2 — Gener al Data — 50-75 Tons Continued

Filters

Panel Filters

Number/Size (Inches) 20 — 20x25x2 20 — 20x25x2 35 — 16x20x2 35 — 16x20x2 35 — 16x20x2 Face Area (Ft

Bag Filters

Number/Size (Inches) 3 — 12x24x19 3 —12x24x19 6 — 12x24x19 6 — 12x24x19 6 — 12x24x19 Cartridge Filters 3 — 12x24x12 3 — 12x24x12 6 — 12x24x12 6 — 12x24x12 6 — 12x24x12 Prefilters (For Bag & 3 — 12x24x2 3 — 12x24x2 6 — 12x24x2 6 — 12x24x2 6 — 12x24x2

Cartridge) 9 — 24x24x2 9 — 24x24x2 8 — 24x24x2 8 — 24x24x2 8 — 24x24x2

Face Area (Ft

Standard Unit Min. Outside Air Temperature For Mechanical Cooling

Without Hot Gas Option 35 F 40 F 30 F 45 F 45 F With Hot Gas Option 35 F 40 F 30 F 45 F 45 F

Low Ambient Option Min. Outside Air T emp

Without Hot Gas Option 0 F 0 F 0 F 0 F 0 F With Hot Gas Option 10 F 10 F 10 F 10 F 10 F

Notes:

1. For cfm values outside these ranges, refer to RT-EB-104.

2. Refer to Table PD-30 for availability of electric heat kw ranges by voltage.

3. 50 - 75 Tons models are dual circuit.

4. The firing rate of the unit can vary from 33% of the Heater Mbh up to the nameplate rating of the unit.

5. The firing rate of the unit can vary from pilot rate of 125,000 Btuh up to the nameplate rating of the unit.

6. 40 Hp available as standard in 460 volt only.

) 69.4 69.4 77.8 77.8 77.8

) 42.0 42.0 44.0 44.0 44.0

50 T on 55 T on 60 T on 70 T on 75 T on

9 — 24x24x19 9 — 24x24x19 8 — 24x24x19 8 — 24x24x19 8 — 24x24x19 9 — 24x24x12 9 — 24x24x12 8 — 24x24x12 8 — 24x24x12 8 — 24x24x12

25RT-PRC010-EN

General Data

Table GD-3 — General Data — 90-130 T ons

Compressor Data

Number/Size (Nominal) 2/10, 4/15 Ton 6/15 Ton 4/10, 4/15 To n 8/15 Ton Model Scroll Scroll Scroll Scroll Unit Capacity Steps (%) 100/69/38/19 100/67/33/17 100/70/40/20 100/75/50/25 RPM 3450 3450 3450 3450

Evaporator Fans

Number/Size/Type 2/28”/AF 2/28”/AF 2/28”/AF 2/28”/AF

Number of Motors 2 2 2 2 Hp Range 30-80 30-80 30-80 30-80 Cfm Range ESP Range — (In. WG) 1.0-4.75 1.0-4.70 1.0-4.70 1.0-4.70

Exhaust Fans 50% 100% 50% 100% 50% 100% 50% 100%

Number/Size/Type 1/22”/FC 2/22”/FC 1/22”/FC 2/22”/FC 1/22”/FC 2/22”/FC 1/22”/FC 2/22”/FC Hp Range 15 15-40 15 15-40 15 15-40 15 15-40 Cfm Range 12,000-20,000 28,000-40,000 12,000-20,000 28,000-40,000 12,000-20,000 28,000-40,000 12,000-20,000 28,000-40,000 ESP Range — (In. WG) .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5 .25-2.5

Condenser Fans

Number/Size/Type 8/26”/Prop. 10/26”/Prop. 10/26”/Prop. 12/26”/Prop. Hp (Each) 1.0 1.0 1.0 1.0 Cfm 56,400 57,000 60,000 63,200 Cycle/Phase 60/3 60/3 60/3 60/3

Evaporator Coil — Standard

Dimensions 122.0 x 70.0 122.0 x 71.25 122.0 x 71.25 122.0 x 71.25

Size (Ft

) 59.3 59.3 59.3 59.3 Rows/Fin Series 3/148 3/180 5/148 5/148 Tube Diameter/Surface

Evaporator Coil — High Capacity

Dimensions 122.0 x 70.0 122.0 x 71.25 NA NA

Size (Ft

) 59.3 59.3 NA NA Hi-Capacity Rows/Fin Series 5/148 5/148 NA NA Tube Diameter/Surface

Condenser Coil

Size (Ft

) 152 152 152 152 Rows/Fin Series/Tube Diameter 3/144/

Electric Heat

KW 190 190 190 190 Capacity Steps: 3 3 3 3

Natural Gas Heat

Standard Heating -- MBh Input 1000 1000 1000 1000 Capacity Steps: 2 2 2 2 Modulating Gas Heat High Heat - Limited Modulation

Heat Exchanger Type Standard Standard Standard Standard

High Heat - Full Modulation

Heat Exchanger Type High Grade, High Grade, High Grade, High Grade,

Hot Water Coil

Size (Inches) (2) 30x84x2 Row (2) 30x84x2 Row (2) 30x84x2 Row (2) 30x84x2 Row Type Type W, Prima Flo Type W, Prima Flo Type W, Prima Flo Type W, Prima Flo High Heat (Fins/Ft) 110 110 110 110 Low Heat (Fins/Ft) 80 80 80 80

Steam Coil

Size (Inches) (2) 30x84x1 Row (2) 30x84x1 Row (2) 30x84x1 Row (2) 30x84x1 Row Type Type NS Type NS Type NS Type NS High Heat (Fins/Ft) 96 96 96 96 Low Heat (Fins/Ft) 52 52 52 52

90 T on 105 T on 1 15 T on 130 T on

27,000-45,000 31,000-46,000

/2/Enhanced

/2/Enhanced NA NA

4/144/ 3/

31,000-46,000 31,000-46,000

/2/Enhanced

4/144/ 3/

/2/Enhanced

4/144/ 3/

33% 33% 33% 33%

100% 100% 100% 100%

Stainless Steel Stainless Steel Stainless Steel Stainless Steel

RT-PRC010-EN26

General Data

Table GD-3 — General Data — 90-130 Tons Continued

Filters

Panel Filters

Number/Size (Inches) 25-24x24x2 25-24x24x2 25-24x24x2 25-24x24x2 Face Area (Ft

Bag Filters 3-12x24x19 3-12x24x19 3-12x24x19 3-12x24x19

Number/Size (Inches) 15-24x24x19 15-24x24x19 15-24x24x19 15-24x24x19

Cartridge Filters 3-12x24x12 3-12x24x12 3-12x24x12 3-12x24x12

) 100.0 100.0 100.0 100.0

Prefilters (For Bag & Cartridge) 3-20x24x2 3-20x24x2 3-20x24x2 3-20x24x2

Face Area (Ft

Standard Unit Min. Outside Air Temperature For Mechanical Cooling

Without Hot Gas Bypass 45 F 45 F 45 F 45 F With Hot Gas Bypass 45 F 45 F 45 F 45 F

Notes:

1. For cfm values outside these ranges, refer to RT-EB-104. 2 Refer to Table PD-30 for availability of electric heat kw ranges by voltage.

3. 90-130 Ton models are dual circuit.

4. Max cfm for 105 Ton std is 44,000. 5 The firing rate of the unit can vary from 33% of the Heater Mbh up to the nameplate rating of the unit.

6. The firing rate of the unit can vary from pilot rate of 125,000 Btuh up to the nameplate rating of the unit.

) 66.0 66.0 66.0 66.0

90 Ton 105 Ton 115 T on 130 Ton

15-24x24x12 15-24x24x12 15-24x24x12 15-24x24x12

15-24x24x2 15-24x24x2 15-24x24x2 15-24x24x2

Table GD-4 — ARI Performance Data

ARI Performance Data

Tons Model

20 SFHFC204LA**A**A***** 220 9.4 12.7

Notes:

1. This information is rated and tested in accordance with ARI Standard 360-93

2. IPLV — Integrated Part Load Value

3. This information applies to units whose design sequence (Digit 10) is “A” or

SAHFC2040A**A**A***** 220 9.5 12.8

SXHFC2040A**A**A***** 220 9.5 12.8 SEHFC204*A**A**A***** 220 9.4 12.7

SLHFC204LA**A**A***** 220 9.4 12.6

SSHFC204LA**A**A***** 220 9.4 12.7

for large unitary equipment up to 25 tons. These Trane products can be found in the current ARI Directory.

later.

Capacity

(MBh) EER IPLV

Table GD-5 — ARI Correction Multipliers

Option Description Digit Designator Capacity EER IPLV High Heat — Gas 9 H,J,P 100 100 100

High Heat — Steam 9 H 100 99 98 High Heat — Hot Water 9 H 100 99 99

Wire Mesh Filter 13 B 100 101 101

95% Bag filter 13 D 99 95 91

95% Cartridge Filter 13 E 99 95 92 100% Economizer 16 D 100 99 98 High Capacity Coil 21 G 114 109 107 High Efficiency Motor 21 L 100 101 101 Inlet Guide Vanes 17 3 100 99 99 VFD (60 Hz) 17 6-9 99 98 98

Model Multipliers (%)

Table GD-6 — Economizer Outdoor Air Damper Leak age (Of Rated Airflow)

∆P Across Dampers (In. WC)

Standard “Low Leak” 1.5 % 2.5 % Optional “Ultra Low Leak” 0.5 % 1 .0 %

Note:

1. Above data based on tests completed in accordance with AMCA Standard 575 at AMCA Laboratories.

0.5 (In.) 1.0 (In.)

27RT-PRC010-EN

P erformance Adjustment Factors

Table PAF-1 — Enthalpy of Sat ura ted AIR

Wet Bulb Temperature Btu Per Lb.

40 15.23

41 15.70 42 16.1 7 43 16.66 44 17.15

45 17.65

46 18.1 6 47 18.68 48 19.21 49 19.75

50 20.30

51 20.86 52 21.44 53 22.02 54 22.62

55 23.22

56 23.84 57 24.48 58 25.12 59 25.78

60 26.46

61 27.15 62 27.85 63 28.57 64 29.31

65 30.06

66 30.83 67 31.62 68 32.42 69 33.25

70 34.09

71 34.95 72 35.83 73 36.74 74 37.66 75 38.61

Figure PAF-1 — Air Density Ratios

Altitude/Temperature Correction

Air Density Ratio (Density at New Air Density) Condition/Std.

Rooftop Leaving Air Temperature (degr ees F)

Table PAF-2 — Cooling Capacity Altitude Correction Fact ors

Cooling Capacity

Multiplier 1.00 0.99 0.99 0.98 0.97 0.96 0.95 0.94

KW Correction

Multiplier (Compressors) 1.00 1.01 1 .02 1.03 1.04 1.05 1.06 1.07

SHR Correction

Multiplier 1.00 .98 .95 .93 .91 .89 .87 .85

Maximum

Condenser Ambient 115 F 11 4 F 11 3 F 1 1 2 F 111 F 110 F 109 F 108 F

Note: SHR = Sensible Heat Ratio

Sea Level 1000 2000 3000 4000 5000 6000 7000

Altitude (Ft.)

Table PAF-3 — Gas Heating Capacity Altitude Cor r ection Factors

Sea Level 2001 2501 3501 4501 5501 6501

Capacity

Multiplier 1.00 .92 .88 .84 .80 .76 .72

Note: Correction factors are per AGA Std 221.30 — 1964, Part VI, 6.12. Local codes may supersede.

To 2000 To 2500 T o 3500 To 4500 To 5500 T o 6500 To 7500

Altitude (Ft.)

RT-PRC010-EN28

P erformance

(20 Ton)

Data

Table PD-1 — 20 Ton Gross Cooling Capacities (MBh) — ST AND ARD CAPACITY Evapor ator Coil With Scroll Compressor

Ambient T emperature

ENT Entering Wet Bulb

DB 61 67 73 61 67 73 61 67 73 61 67 73

CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC

75 194 140 215 116 239 89 187 136 208 112 231 86 180 133 200 109 222 82 173 128 192 105 213 79

4000 80 194 159 216 135 239 1 11 188 155 208 132 231 108 181 151 201 128 222 103 173 147 192 124 213 99

85 195 178 216 154 239 130 189 174 209 151 231 126 182 170 201 147 222 122 175 166 192 143 213 1 18 90 196 196 216 173 239 149 1 91 191 209 169 231 145 185 185 201 165 223 141 179 179 193 161 213 137

75 214 166 236 133 261 96 206 162 228 129 251 93 198 158 218 125 241 89 189 154 208 121 230 85

6000 80 215 1 93 236 160 261 125 207 1 90 228 156 251 121 1 99 185 219 152 241 117 190 181 209 147 230 113

85 218 218 237 186 261 152 212 212 228 182 252 148 205 205 219 178 241 144 197 197 210 173 231 140 90 229 229 238 213 262 178 223 223 230 209 252 175 215 215 221 205 242 170 208 208 212 201 231 166

75 220 178 243 140 268 99 212 174 234 136 257 95 203 169 224 132 247 92 194 165 214 127 235 88

7000 80 222 209 243 170 268 131 214 205 234 166 258 127 206 201 224 162 247 123 197 197 214 157 235 119

85 229 229 244 200 268 162 222 222 235 1 96 258 158 215 215 225 1 92 247 154 207 207 215 188 236 149 90 241 241 246 231 269 192 234 234 238 228 259 188 226 226 229 223 248 183 218 218 219 219 237 179

75 225 189 248 146 273 10 1 216 185 239 142 262 98 207 180 228 138 251 94 198 176 217 134 239 90

8000 80 228 224 249 180 273 136 220 220 239 176 263 133 211 211 229 172 251 129 203 203 218 167 240 124

85 239 239 250 214 273 171 231 231 240 210 263 167 223 223 231 206 252 162 215 215 220 201 240 158 90 251 251 253 249 274 204 243 243 243 243 264 200 235 235 235 235 253 196 226 226 226 226 241 191

75 229 199 252 152 277 104 221 195 242 148 266 100 211 190 232 144 255 96 202 186 221 139 242 92

9000 80 234 234 253 189 277 142 226 226 243 185 266 138 218 218 233 181 255 134 209 209 222 176 243 130

85 246 246 254 227 278 179 239 239 245 223 267 175 230 230 235 218 256 171 221 221 224 214 244 166 90 259 259 259 259 279 216 251 251 251 251 268 212 242 242 242 242 256 207 233 233 233 233 244 203

85 95 105 115

Table PD-2 — 20 Ton Gross Cooling Capacities (Mbh) — HIGH CAP ACITY Evapor at or Coil With Scroll Compressor

ENT Entering Wet Bulb

DB 61 67 73 61 67 73 61 67 73 61 67 73

CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC

75 216 158 240 129 265 100 208 153 231 125 256 96 200 149 222 121 245 91 191 144 212 1 16 234 87

4000 80 217 180 240 152 265 123 209 176 231 148 256 118 201 171 222 143 245 114 192 166 212 139 234 110

85 218 203 240 174 266 145 211 198 232 170 256 141 202 194 222 166 246 137 194 189 213 161 235 132 90 222 222 241 1 96 266 167 216 216 232 192 256 163 209 209 223 187 246 159 201 201 213 183 235 154

75 238 190 262 150 288 106 228 186 251 145 277 102 219 181 241 141 264 97 208 176 229 136 252 93

6000 80 240 223 262 182 289 140 231 219 252 177 277 136 221 214 241 172 265 131 211 209 229 167 252 127

85 247 247 263 214 289 172 239 239 253 209 278 168 231 231 242 204 265 163 222 222 231 199 253 158 90 260 260 266 247 289 204 251 251 256 242 278 200 243 243 245 237 266 195 233 233 235 232 253 190

75 245 205 268 158 295 109 235 200 258 154 283 104 225 196 246 149 270 100 214 190 234 144 257 95

7000 80 248 244 269 1 95 296 148 238 238 258 190 284 144 229 229 247 186 271 139 220 220 235 180 257 134

85 260 260 271 233 296 185 251 251 260 228 284 180 242 242 249 223 271 175 232 232 238 218 258 170 90 273 273 275 271 297 221 264 264 264 264 285 217 254 254 254 254 273 212 244 244 244 244 259 207

75 250 220 274 168 301 111 240 215 262 164 288 107 230 210 251 159 274 102 219 205 238 154 260 98

8000 80 256 256 275 208 301 156 247 247 264 203 289 152 238 238 252 198 275 147 228 228 239 193 261 142

85 270 270 278 251 302 197 261 261 267 246 289 192 251 251 255 241 276 187 241 241 243 236 262 182 90 284 284 284 284 303 238 275 275 275 275 291 233 265 265 264 264 278 228 254 254 253 253 264 223

75 255 234 278 175 305 114 245 229 266 171 292 109 234 224 254 166 278 105 223 219 241 161 264 100

9000 80 264 264 279 221 306 164 255 255 268 216 293 159 245 245 256 211 279 155 235 235 243 206 265 150

85 279 279 283 269 306 208 269 269 272 264 293 203 259 259 260 259 280 198 248 248 248 248 266 193

Notes:

1. All capacities shown are gross and have not considered indoor fan heat.

2. CAP = Total gross cooling capacity (MBH).

3. SHC = Sensible heat capacity (MBH).

90 294 294 294 294 308 254 284 284 284 284 296 249 273 273 273 273 283 244 261 261 261 261 269 239

85 95 105 115

Ambient T emperature

29RT-PRC010-EN

P erformance

(25 Ton)

Data

Table PD-3 — 25 Ton Gross Cooling Capacity — STANDARD CAP A CITY Evaporator Coil With Scroll Compressor

Ambient T emperature

ENT Entering Wet Bulb

DB 61 67 73 61 67 73 61 67 73 61 67 73

CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC

75 245 179 272 148 301 112 237 175 263 143 290 107 228 170 253 139 279 103 219 165 242 134 267 98

5000 80 246 205 272 173 301 141 238 200 263 169 290 137 229 195 253 164 279 130 220 190 243 159 267 125

85 248 230 273 198 301 165 240 226 263 194 290 161 231 221 254 189 279 156 223 216 243 184 267 151 90 253 253 273 223 301 190 246 246 264 218 291 186 238 238 254 214 279 181 230 230 244 209 267 176

75 265 207 292 164 320 118 255 202 281 160 308 1 1 4 245 197 270 155 295 109 234 192 258 150 281 104

7000 80 267 241 293 198 320 154 258 237 282 194 308 149 248 232 270 188 295 144 237 226 258 183 281 139

85 272 272 293 232 321 188 264 264 282 227 309 183 255 255 271 221 296 178 246 246 259 216 282 173 90 285 285 295 266 321 221 277 277 285 261 309 216 268 268 274 255 296 211 258 258 262 250 282 205

75 276 228 303 177 331 122 266 223 291 172 318 1 1 8 255 218 279 167 304 113 243 213 266 162 289 108

8750 80 280 271 303 218 331 164 270 266 292 212 318 160 258 258 279 207 304 155 248 248 266 201 289 149

85 291 291 305 258 331 205 282 282 293 253 318 200 272 272 281 247 304 195 261 261 268 242 289 189 90 305 305 309 299 331 245 295 295 298 294 318 240 285 285 285 285 305 234 274 274 273 273 290 228

75 282 243 308 186 336 125 271 237 296 180 322 121 260 232 283 175 308 116 248 226 270 169 293 110

10000 80 286 286 309 230 336 171 277 277 297 225 322 167 267 267 284 219 308 162 256 256 271 214 293 156

85 301 301 31 1 275 336 216 291 291 299 270 323 211 281 281 287 265 308 206 269 269 274 259 293 200 90 316 316 315 315 337 260 305 305 305 305 323 255 294 294 294 294 309 250 282 282 282 282 294 244

75 286 253 312 192 339 128 275 248 299 186 325 123 264 243 286 181 311 117 252 237 272 175 295 112

11000 80 293 293 313 240 339 177 283 283 300 234 326 172 273 273 287 229 311 167 261 261 273 223 295 161

85 308 308 315 289 340 225 298 298 303 284 326 220 287 287 291 278 311 214 275 275 277 272 296 208 90 323 323 323 323 340 273 312 312 312 312 327 267 300 300 300 300 312 262 288 288 287 287 297 256

85 95 105 115

Table PD-4 — 25 Ton Gross Cooling Capacity — HIGH CAPACITY Ev apor at or Coil With Scroll Compressor

Ambient T emperature

ENT Entering Wet Bulb

DB 61 67 73 61 67 73 61 67 73 61 67 73

CFM (F) CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC CAP SHC

75 273 273 303 163 334 125 263 194 291 158 322 120 253 188 280 153 309 115 242 182 267 147 296 11 0

5000 80 274 226 303 191 334 155 264 221 292 186 322 150 254 215 280 180 310 145 243 209 268 17 4 296 139

85 277 255 304 219 334 184 267 249 292 214 323 179 257 244 281 209 310 17 4 246 238 268 202 296 168 90 283 283 305 246 334 210 275 275 294 241 323 205 266 266 282 235 310 200 257 257 270 229 297 194

75 295 235 325 185 355 131 283 230 312 179 342 126 271 223 299 173 328 121 259 217 285 168 313 115

7000 80 298 275 325 226 355 171 287 270 313 220 342 167 275 264 299 214 328 161 263 257 285 208 313 156

85 307 307 327 264 355 212 297 297 315 258 342 207 286 286 302 252 328 202 275 275 288 246 313 196 90 322 322 330 304 355 247 312 312 318 298 343 245 301 301 306 292 329 240 290 290 292 286 314 234

75 308 262 336 200 365 135 296 256 323 195 351 130 283 250 309 189 337 125 269 244 294 184 321 1 19

8750 80 314 313 337 248 365 185 302 302 324 243 352 180 290 290 310 237 337 175 279 279 296 231 321 170

85 329 329 340 297 365 236 318 318 327 292 352 230 307 307 314 286 337 223 294 294 300 280 322 217 90 344 344 344 344 367 281 333 333 333 333 353 275 322 322 322 322 339 270 309 309 309 309 324 264

75 315 281 342 21 1 370 137 302 275 328 206 356 133 289 269 314 200 341 127 276 262 299 193 325 122

10000 80 324 324 343 265 370 195 313 313 330 260 357 190 301 301 316 254 342 185 288 288 301 247 326 180

85 340 340 347 321 371 248 329 329 334 315 357 243 317 317 321 309 342 237 304 304 306 303 326 231 90 356 356 356 356 372 303 345 345 345 345 359 297 332 332 332 332 344 291 319 319 319 319 329 285

75 320 296 345 220 374 140 307 290 332 215 360 135 294 283 317 207 344 130 280 277 302 201 328 124

11000 80 331 331 347 278 374 203 320 320 334 273 360 198 308 308 320 267 345 193 295 295 305 260 328 187

85 348 348 352 339 375 259 337 337 339 333 360 254 324 324 324 324 345 249 311 311 311 311 329 243

Notes

1. All capacities shown are gross and have not considered indoor fan heat.

2. CAP = Total gross cooling capacity.

3. SHC = Sensible heat capacity.

90 364 364 364 364 376 318 352 352 352 352 362 313 339 339 339 339 348 308 326 326 326 326 332 302

85 95 105 115

RT-PRC010-EN30

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