WEATHERMAKER® 50TFF004-014, 50TJ016-028 WEATHERMASTER® 50HJ004-028 Single-Package Rooftop Units...

8/16/2019 WEATHERMAKER® 50TFF004-014, 50TJ016-028 WEATHERMASTER® 50HJ004-028 Single-Package Rooftop Units El…

1/304Copyright 2004 Carrier Corporation Form 50H,T-7P

Standard-Efficiency (TFF,TJ) andHigh-Efficiency (HJ) electric heat-ing with electric cooling rooftopunits offer:

• Pre-painted galvanized steelcabinet for long life and qualityappearance

• Commercial strength base rails witbuilt-in rigging capability

• Convertible design for vertical orhorizontal supply/return (sizes 004014 only)

• Non-corrosive, sloped condensatedrain pan, meets ASHRAE 62 (IAQ

• Two-inch return-air filters

• A wide assortment of factory-installed options available, includin

high-static drives that provideadditional performance range

• Optional factory-installed COBRA™energy recovery unit (option on50HJ004-014 units only)

• Factory-installed PremierLink™digital communicating controls

• Factory-installed optional geardriven EconoMi$er IV (verticalreturn for sizes 004-012 only) foruse with standard rooftop unit controls (includes CO2 sensor controlcapability)

• Factory-installed optional geardriven EconoMi$er2 (vertical returonly) for use with PremierLink DDCcontrols (includes 4 to 20 mA actutor for demand control ventilation)

• Humid-MiZer™ adaptive dehumidification system (50HJ004-014)

• MoistureMi$er™ dehumidificationpackage

Heat Options

• Electric resistance heat elements

• Glycol hydronic coils

WEATHERMAKER® 50TFF004-014,50TJ016-028

WEATHERMASTER® 50HJ004-028Single-Package Rooftop Units

Electric Heating/Electric Cooling

3 to 25 Nominal Tons

ProductData

50HJ004-01450TFF004-014

50HJ015,01750TJ016-025

50TJ028

905

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Features/BenefitsEvery compact one-pieceunit arrives fully assembled,charged, tested, and ready torun.

Quiet, efficient operation anddependable performanceCompressors have vibration isolatorsfor quiet operation. Efficient fan andmotor design permits operation at lowsound levels.

Unit sizes 008-028 offer lower utilitycosts through part-load operation us-ing 2 stages of cooling.

Quiet and efficient operation is pro-vided by belt-driven evaporator fans(standard on all units over 5 tons). Thebelt-driven evaporator-fan is equippedwith variable-pitch pulleys which allowadjustment within the rpm ranges ofthe factory-supplied pulleys.

Increased operating efficiency isachieved through computer-designedcoils featuring staggered internallyenhanced copper tubes. Fins areripple-edged for strength, lanced, anddouble waved for higher heat transfer.

Durable, dependableconstructionDesigned for durability in any climate,the weather-resistant cabinets are con-structed of galvanized steel and bonder-ized, and all exterior panels are coatedwith a prepainted baked enamel finish.The paint finish is non-chalking, and is

capable of withstanding ASTM (Ameri-can Society for Testing and Materials)B117 500-hour Salt Spray Test. Allinternal cabinet panels are primed,permitting longer life and a more at-tractive appearance for the entire unit.

In addition, all size 004-014 unitsare designed with a single, continuoustop piece to eliminate any possibleleaks at seams or gasketing. Totally en-closed condenser-fan motors and per-manently lubricated bearings provideadditional unit dependability.

Easy installation andconversion All units are shipped in the verti-cal duct configuration for fit-up tostandard roof curbs. The contractorcan order and install the roof curb earlyin the construction stage, before deci-sions on size requirements are made.

All units feature a base rail designwith forklift slots and rigging holes foreasier maneuvering. Durable packag-ing protects all units during shipmentand storage.

The units can be easily convertedfrom a vertical to a horizontal duct con-figuration by relocating the panels sup-

plied with the unit (sizes 004-014 only).To convert size 004-014 units from vertical to horizontal discharge,simply relocate 2 panels. The same ba-sic unit can be used for a variety of ap-plications and can be quickly modifiedat the jobsite.To convert size 015-028 units fromvertical to horizontal discharge, use theoptional horizontal supply/returnadapter roof curb (50HJ015,017 and50TJ016-025) or accessory conver-sion kit (50HJ020-028).Convenient duct openings in theunit basepans permit side-by-side orconcentric duct connections (seeApplication data section) without re-quiring internal unit modification.NOTE: On units using horizontal sup-ply and return, the accessory baromet-ric relief or power exhaust MUST beinstalled on the return ductwork.Thru-the-bottom service connec-tion capability comes standard withthe rooftop unit to allow power andcontrol wiring to be routed through theunit’s basepan, thereby minimizing

Table of contents

Page

Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9 ARI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10,11Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-21

50TFFPhysical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22,23Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24,25Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26,27Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28,29Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-68Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-80Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81-83Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84Guide Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85-90

50TJPhysical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91,92Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93,94Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95-98Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100-119

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120,121Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122-124Typical Piping and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125Guide Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126-131

50HJPhysical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132-138Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139-146Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147-154Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155,156Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157-221Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222-251Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252-262Typical Piping and Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263,264Guide Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265-288

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289-298 Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299-303Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304


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roof penetrations (to prevent waterleaks). Power and control connectionsare made on the same side of the unitto simplify installation.The non-corrosive sloped conden-sate drain pan (size 004-014)permits either an external horizontalside condensate drain (outside the roof

curb) or an internal vertical bottomdrain (inside the roof curb). Bothoptions require an external, field-supplied P-trap.Standard 2-in. throwaway filters are easily accessed through a remov-able panel located above the air intakehood. No tools are required to changeunit filters.Belt-driven evaporator-fan motors allow maximum on-site flexibility with-out changing motors or drives.Field-installed accessory electricheaters are available in a wide rangeof capacities. An available single-point

wiring kit makes installation simple.Low voltage wiring connections are easily made thanks to the large ter-minal board which is located for quick,convenient access.

In addition, color-coded wires permiteasy tracing and diagnostics.

Proven compressor reliabilityDesign techniques feature computer-programmed balance between com-pressor, condenser, and evaporator.Carrier-specified hermetic compres-sors are equipped with compressorovercurrent and overtemperature pro-

tection to ensure dependability.All units have Carrier’s exclusive

Acutrol™ (004-014) or TXV (thermo-static expansion valve) metering de-vice (015-028) which precisely con-trols refrigerant flow, preventingslugging and flood-back, while main-taining optimum unit performance.Refrigerant filter driers are standard.

Integrated economizers andoutdoor-air dampersAvailable as options or accessories,economizers and manual outdoor-airdampers introduce outdoor air which

mixes with the conditioned air, improv-ing indoor-air quality and often reduc-ing energy consumption.

During a first stage call for cooling, ifthe outdoor-air temperature is belowthe economizer control changeoverset point, the mixed-air sensor modu-lates the economizer outdoor-airdamper open to take advantage of freecooling provided by the outside air.When second-stage cooling is calledfor, the compressor is energized inaddition to the economizer. If the

outdoor-air temperature is above thechangeover set point, the first stageof compression is activated and theeconomizer damper stays at minimumposition.

Accessory upgrade kits allow forcontrol by differential dry-bulb temper-ature (outdoor vs return), outdoor air

enthalpy changeover, or more precisedifferential enthalpy control.Units can be equipped with different

economizer options to meet specificcontrols applications. The factory-installed or field-installed EconoMi$erIV and EconoMi$er2 are available. TheEconoMi$er IV is used with the stan-dard rooftop unit controls and includesan industry standard, stand-alone,solid-state control. The control can beused with a CO2 sensor for DCV (de-mand control ventilation) operation.For direct digital control (DDC) applica-tions, the EconoMi$er2 can be operat-ed using PremierLink™ controls or athird party controller. The Econo-Mi$er2 includes 4 to 20 mA actuatorcapability for demand control ventila-tion applications.

All economizers incorporate a paral-lel blade, gear-driven damper systemfor efficient air mixing and reliablecontrol. In addition, the standarddamper actuator includes a springreturn to provide reliable closure onpower loss. The economizers for sizes004-014 are equipped with up to100% barometric relief capability forhigh outdoor airflow operations. Econ-omizers for unit sizes 004-014 areavailable factory installed for vertical re-turn only. Economizers for unit sizes015-028 are compatible for vertical orhorizontal return. An optional field-installed barometric relief package isavailable for 015-028 size units.

In addition, single-stage powerexhaust is available as a field-installedaccessory for EconoMi$er IV to helpmaintain proper building pressure.

For units without economizer, year-round ventilation is enhanced by amanual outdoor-air damper. On size004-014 units, a 25% or 50% manualdamper is available as a field-installedaccessory. Unit sizes 015-028 areequipped with a manual 25% damper.

Service options (50HJ004-017, 50TFF004-014 and50TJ016-028 only)Servicing a rooftop unit has neverbeen easier with the new factory-installed service options for theserooftop units. These options includethe following:• Hinged access panels are provided

for the filter/indoor-fan motor,

compressors, evaporator fan, andcontrol box areas. Quick access tomajor components is accomplishedby simply unlatching and swingingopen the various panels. Eachhinged panel is permanentlymounted to the unit, thereby elimi-nating the concern of a dropped orwind-blown panel puncturing deli-cate roof materials. The 4 extendedaccess panels are also equippedwith ‘‘tie back’’ retaining devices tohold the door in the open positionwhile servicing the unit.

• An external, covered, 115-v GroundFault Interrupt (GFI) receptacle isprovided as a convenient powersource for drills, lights, refrigerantrecovery units, or other electricalservice tools. A factory-supplied stepdown transformer is connected tothe “load” side of the unit mainpower connection (size 004-014).For sizes 015-028, connect the out-

let to a field-supplied and properlyfused branch circuit power supply.

• Slide out “motor-drive-blower”reduces service time (only on50HJ017).

• An integral non-fused disconnectswitch within the rooftop unitreduces installation time, labor andmaterial costs. Safety is assured byan interlock which prevents access tothe control box unless the switch is inthe OFF position. In addition, theexternally mounted handle incorpo-rates power lockout capability to fur-ther protect service personnel.

Carrier PremierLink™ controlsadd reliability, efficiency, andsimplification (50HJ004-017,50TFF004-014 and 50TJ016-028 only)The PremierLink direct digital controlscan be ordered as a factory-installedoption or as a field-installed accessory.Designed and manufactured exclusivelyby Carrier, the controls can be used toactively monitor and control all modesof operations, as well as monitor thefollowing diagnostics and features:unit number, zone temperature, zone

set point, zone humidity set point,discharge air temperatures, fan status,stages of heating, stages of cooling,damper position, outdoor-air tempera-ture, outdoor humidity level, filter sta-tus, fire shutdown status, IAQ (indoorair quality) set point, enthalpy status,differential enthalpy status, heat/coollockout, cfm set point, pre-occupancypurge, economizer controls and earlymorning warm-up.

This controller has a 38.4K baudcommunications capability and is

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compatible with ComfortLink™ con-trols, CCN (Carrier Comfort Net-work®) and ComfortVIEW™ Software.The Scrolling Marquee and Naviga-tor™ display are optional tools that canbe used for programming and monitor-ing the unit for optimal performance.The addition of the Carrier CO2 sensorin the conditioned space providesASHRAE 62-99 (American Society ofHeating, Refrigeration and Air Condi-tioning Engineers) compliance and De-mand Control Ventilation.

The PremierLink™ peer-to-peer,Internet ready communicating control isdesigned specifically for Constant Vol-ume (CV) and Variable Volume andTemperature (VVT®) applications. Thiscomprehensive controls system allowsall Carrier rooftops with a 3-wire com-munication bus to be daisy chained to-gether on a roof to create a fully func-tional HVAC (heating, ventilation, andair conditioning) automation system.

Indoor-air quality begins withCarrier rooftopsSloped condensate pans minimizebiological growth in rooftop units inaccordance with ASHRAE Standard62. Two-inch filters with optional dirtyfilter indicator switch provide forgreater particle reduction in the returnair. The face-split evaporator coilsimprove the dehumidification capabili-ty of standard units, maximize buildinghumidity control.

Optional proportional reactingCO2 sensor is available with theEconoMi$er IV or EconoMi$er2 out-door air damper option/accessory toaid the IAQ benefits.

Humidi-MiZer™ adaptivedehumidification system(50HJ004-014)Carrier’s Humidi-MiZer adaptive dehu-midification system is an all-inclusivefactory-installed option that can beordered with any Weathermaster®50HJ004-014 rooftop unit to meetthe demand for providing a flexibleand high performing solution toaccommodate all of these design relat-

ed issues. This system expands the en-velope of operation of Carrier’sWeathermaster 50HJ004-014 rooftopproducts to provide unprecedentedflexibility to meet year-round comfortconditions. The Humidi-MiZer adap-tive dehumidification system has theindustry’s only dual dehumidificationmode setting. The Humidi-MiZersystem includes two new modes ofoperation. The Weathermaster50HJ004-014 rooftop coupled withthe Humidi-MiZer system is capable of

operating in normal design coolingmode, subcooling mode, and hot gasreheat mode. Normal Design Coolingmode is when the unit will operate un-der its normal sequence of operationby cycling compressors to maintaincomfort conditions. Subcooling modewill operate to satisfy part load typeconditions when the space requirescombined sensible and a higher pro-portion of latent load control. Hot GasReheat mode will operate when out-door temperatures diminish and theneed for latent capacity is required forsole humidity control. Hot Gas Reheatmode will provide neutral air for maxi-mum dehumidification operation.

Exclusive MoistureMi$er™dehumidification package(50HJ015,017 and50TJ016-028)The MoistureMi$er dehumidificationpackage is a result of recent advances

by Carrier in controlling comfort levels.This factory-installed option significant-ly improves the dehumidification capa-bility of the rooftop unit and helps con-trol humidity levels in the building.

This option provides increased dehu-midification by cooling the hot liquidrefrigerant leaving the condenser coil.The MoistureMi$er package consistsof a subcooling coil located on theleaving-air side of the evaporator coil.The location of this coil in the indoorairstream enhances the latent capacityof the 50HJ and TJ units by as muchas 40%. Many buildings suffer from hu-

midity damage or poor indoor air qual-ity due to humid conditions. The im-proved latent capacity provided by theMoistureMi$er option reduces thebuilding’s humidity, eliminating poten-tial property damage and making thespace more comfortable.

The MoistureMi$er option is theideal IAQ (indoor-air quality) option forhot and humid regions. The operationof the MoistureMi$er package can becontrolled by a field-installed, wallmounted humidistat or Thermidistat™device. The circuit activates only whenneeded (using the accessory humidistat)

as opposed to some dehumidificationsystems that operate continuously. Thehumidistat can be set for any humiditylevel between 20% and 80% relativehumidity.The Thermidistat device canbe set for any humidity level between50% and 90% relative humidity.

COBRA™ energy recoveryunits (50HJ004-014 only)Carrier’s factory-installed optionalCOBRA units recover energy from thebuilding exhaust air and precondition

ventilation air for the rooftop unitduring winter and summer operation.These units are designed to satisfy thehigher ventilation requirements andother building codes while minimizingenergy costs.

Factory installation of the 62AQ sec-tion provides the benefit of reduced

field-installation time, single point pow-er connections, and the assurance of afactory test for the complete COBRAunit. The COBRA energy recoverysection requires less maintenance thanother energy recovery systems and canbe serviced by any qualified refrigera-tion technician.

The COBRA energy recovery unitsutilize Carrier’s high-efficiency50HJ004-014 rooftop units and pro-vide 3 to 121/ 2 tons of cooling capaci-ty with the capability to pre-condition600 to 3000 cfm of outdoor air.

Indoor-air quality (IAQ) generally

refers to the level of pollutants inside abuilding. These pollutants include ciga-rette smoke, carbon dioxide exhaled byoccupants, radon gas, car exhaust,paint fumes, and odors.

Concern over increased indoor airpollutants has been spurred by severalissues: 1) changes in new buildingconstruction methods and retrofit ofolder buildings have reduced airinfiltration rates; 2) Synthetic materialsrelease airborne particles, odors,and chemicals; and 3) HVAC (heating,ventilation, and air conditioning)systems that bring in minimal fresh

air.In 1989, IAQ concerns causedASHRAE to recommend increasedventilation for all public buildings.Simply introducing fresh air into abuilding, however, is not alwayspractical or cost effective. Additionalventilation can overload HVACsystems and increase energy costs.

Carrier’s COBRA energy recoveryunit solves this dilemma by providingincreased fresh air while keepingincreased costs to a minimum. Inaddition, the COBRA energy recoveryunit helps reduce humidity levels,

which helps to prevent deterioration ofbuilding materials and retards thegrowth of mold and mildew.

The COBRA energy recovery unitprovides the best solution to retainingthe energy-conserving benefits of to-day’s tighter building constructionwhile improving indoor-air quality.

Features/Benefits (cont)


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Model number nomenclature

50 TFF 006 P M F 6 - 1 HA

Nominal Capacity Tons004 – 3 Tons005 – 4 Tons006 – 5 Tons007 – 6 Tons008 – 7 1/2 Tons009 – 8 1/2 Tons012 – 10 Tons014 – 12 1/2 Tons

50– Packaged RooftopElectric CoolingUnits with AccessoryElectric Heat

Controls and Sensors- – NoneN – Novar ETM3051 Control*

P – PremierLink™ DDC Control

Packaging1 – Domestic3 – Export

FIOPs †

TFF – Constant Volume, Standard Efficiency

Voltage1 – 575-3-603 – 208/230-1-605 – 208/230-3-606 – 460-3-60

Indoor Motor Options- – Standard Motor & DriveA – Alternate MotorM High-Static Indoor Motor–

Coil Protection Options (fin/tube)- – Al/Cu Cond & EvapB – Cu/Cu Cond & EvapC – Cu/Cu Cond & Al/Cu EvapF – E-Coat Al/Cu Cond & Al/Cu EvapG – E-Coat Cu/Cu Cond & Al/Cu EvapV Al/Cu Pre-Coat Cond Fin & Al/Cu–

50TFF004-014 (3 TO 121/2 TONS)

LEGEND

*Contact factory for availability and application information.†Refer to 50TFF Price Pages or contact your local Carrier rep-

resentative for FIOP code table.

Al — AluminumCu — CopperD DC — Direct Digital ControlFIOP — Factory-Installed Option

Quality Assurance

Certified to ISO 9001:2000


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50TJ016-028 (15 TO 25 TONS)

Model number nomenclature (cont)

50 TJ - 024 P - F 6 - 1 YA

Tons Normal Capacity016 – 15 Tons020 – 18 Tons024 – 20 Tons028 – 25 Tons

50– Packaged RooftopElectric CoolingUnits with AccessoryElectric Heat

Control/Service Options- – Standard Controls

G – Service Option (Non-fused D/C, Cold 115 C.O.,Hinged Access Panels) with Standard ControlsH – Hinged Access Panels with PremierLink™ ControllerJ – Hinged Access PanelsP – PremierLink DDC ControlX – Service Options with PremierLink Controller

Packaging1 – Domestic

3 – Export

FIOP Code*

TJ – Constant Volume, Standard EfficiencyDesign ChangesA – Gear Driven EconoMi$er

Voltage1 – 575-3-605 – 208/230-3-606 – 460-3-60

Coil Protection Options (fin/tube)- – Al/Cu Cond & EvapB – Cu/Cu Cond & EvapC – Cu/Cu Cond & Al/Cu EvapF – E-Coat Al/Cu Condenser

G – E-Coat Cu/Cu CondenserV – Black Pre-Costed Condenser Fins

Fan Drive Position (Standard Motor)- – Standard Motor & Drive

LEGEND

*Refer to 50TJ Price pages or contact your local Carrierrepresentative for FIOP code table.

Al — AluminumCu — CopperD DC — Direct Digital ControlsFIOP — Factory-Installed Option

Quality Assurance



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50HJ004-014

LEGEND

*Contact factory for availability and applications.†Refer to 50HJ Price Pages or contact your local Carrier

Representative for FIOP code table.

Al — AluminumCu — CopperDDC — Direct Digital ControlsFIOP — Factory-Installed OptionRTU — Rooftop Unit

50HJ004-012 UNITS AREENERGY STAR QUALIFIED

Quality Assurance



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50HJ015,017

Model number nomenclature (cont)

50 HJ - 017 Z - C 6 - - YA

Nominal Capacity - Tons015 – 12 Tons017 – 15 Tons

50 – PackageRooftop UnitsElectric Cooling/ Optional Electric Heat

Service/Control Options- – Standard ControlsG – Service Option with Six Hinged Access Panels,

Non-Fused Disconnect, and Non-Powered 115-v GFIConvenience Outlet

J – Hinged Access PanelsP – PremierLink™ DDC Control

FIOP (Factory-Installed Options) Code*

Voltage Description1 – 575-3-605 – 208/230-3-606 – 460-3-60

Coil Protection Options- – Al/Cu Condenser and EvaporatorB – Cu/Cu Condenser and EvaporatorC – Cu/Cu Condenser and Al/Cu EvaporatorF – E-Coated Al/Cu Condenser and Al/Cu EvaporatorG – E-Coated Cu/Cu Condenser and Al/Cu EvaporatorV – Al/Cu Pre-coated Condenser Fins

HJ – Constant Volume, High Efficiency

LEGEND

*Refer to 50HJ price pages or contactyour local Carrier representative forFIOP code table.

Al — AluminumCu — CopperDDC— Direct Digital ControlsGFI — Ground Fault Interrupter

Quality Assurance



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50HJ020-028

Heating Options

– – No HeatA – Low Electric HeatB – Medium Electric HeatC – High Electric Heat Coil Protection Options (fin/tube)

– – Al/Cu Cond & EvapA – Al/Cu Pre-Coat Cond & Al/Cu EvapB – Al/Cu E-Coat Cond & Al/Cu EvapC – Al/Cu E-Coat Cond & EvapD – Cu/Cu Cond & Al/Cu EvapE – Cu/Cu Cond & EvapF – Cu/Cu E-Coat Cond & Al/Cu EvapG – Cu/Cu E-Coat Cond & Cu/Cu EvapH – Cu/Cu E-Coat Cond & Evap

Nominal Capacity – Tons020 – 18 Tons024 – 20 Tons028 – 25 Tons

Factory-Installed Options Code*

50HJ A 024 – A C 6 – – AA

Voltage Description1 – 575-3-605 – 208/230-3-60

6 – 460-3-60

Service/Control Options– – Mechanical ControlsU – Mechanical Controls with Return Smoke DetectorV – Mechanical Controls with Supply and Return Smoke Detectors Indoor Motor Options

A – Low Range, Vertical Supply/ReturnB – Mid-Low Range, Vertical Supply/ReturnC – Mid-High Range, Vertical Supply/Return

50HJ – Single Package Rooftop Units,Electric Cooling, Optional Electric Heat, Constant Volume

D – High Range, Vertical Supply/ReturnE – Low Range, Horizontal Supply/ReturnF – Mid-Low Range, Horizontal Supply/Return

G – Mid-High Range, Horizontal Supply/ReturnH – High Range, Horizontal Supply/ReturnJ – L ow Range, Vertical Supply/Return with Hinged Panels

K – Mid-Low Range, Vertical Supply/Return with Hinged Panels

L – Mid-Range, Vertical Supply/Return with Hinged Panels

M – High Range, Vertical Supply/Return with Hinged PanelsN – Low Range, Horizontal Supply/Return with Hinged PanelsP – Mid-Low Range, Horizontal Supply/Return with Hinged Panels

R – High Range, Horizontal Supply/Return with Hinged PanelsQ – Mid-High Range, Horizontal Supply/Return with Hinged Panels

LEGEND

Al — AluminumCu — CopperFIOP — Factory-Installed Option

*Refer to 50HJ price pages or contact your local Carrier representative for FIOP code table.

Quality Assurance



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ARI* CAPACITY RATINGS — 50TFF004-014

LEGEND

*Air Conditioning and Refrigeration Institute.†The SEER values shown for sizes 004, 005, and 006 are for units with the

standard direct drive motors; SEER rating for these units with the optionalbelt drive motor is 10.0.

**ARI does not require EER ratings for units with capacity below65,000 Btuh. For these units, the EER ratings at ARI standard conditionsis provided for information only.

††The IPLV applies only to 2-stage cooling units.

NOTES:1. Rated in accordance with ARI Standards 210-94 (004-012) or 360-93.2. Ratings are net values, reflecting the effects of circulating fan heat.3. Ratings are based on:

Cooling Standard: 80 F db, 67 F wb indoor entering-air temperature and95 F db air entering outdoor unit.IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and 80F db outdoor entering-air temperature.

ARI* CAPACITY RATINGS — 50TJ016-028

LEGEND

*Air Conditioning and Refrigeration Institute.

NOTES:1. Rated in accordance with ARI Standards 360-89 and 270-89.2. The 50TJ028 is beyond the scope of the ARI Certification Program.3. ARI ratings are net values, reflecting the effects of circulating fan heat.

4. Ratings are based on:Cooling Standard: 80 F db, 67 F wb indoor entering-air temperatureand 95 F db air entering outdoor unit.IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and80 F db outdoor entering-air temperature.

UNIT50TFF

NOMINALTONS

NET COOLINGCAPACITY

(Btuh)

TOTALkW

SEER† EERSOUNDRATING

(dB)IPLV††

004 3 35,000 4.0 9.7 8.7** 81 N/A

005 4 47,000 5.3 9.7 8.8** 81 N/A

006 5 57,000 6.7 9.7 8.5** 81 N/A

007 6 72,000 8.0 — 9.0 81 N/A

008 71 / 2 85,000 9.6 — 8.9 87 9.4009 81 / 2 98,000 10.9 — 9.0 87 9.0

012 10 117,000 13.0 — 9.0 88 9.4

014 121 / 2 144,000 16.0 — 9.2 87 9.2

db — dry bulbEER — Energy Efficiency RatioIPLV — Integrated Part-Load ValuesSEER — Seasonal Energy Efficiency Ratiowb — wet bulb

UNIT50TM

NOMINALTONS

NET COOLINGCAPACITY (Btuh)

TOTALWATTS

EERSOUNDRATING

(decibels)IPLV

016 15 178,000 19,813 8.9 88 9.6

020 18 188,000 21,298 8.8 88 9.8

024 20 220,000 25,146 8.7 94 8.9

028 25 270,000 30,901 8.7 94 9.2

db — Dry BulbEER — Energy Efficiency RatioIPLV — Integrated Part-Load Valueswb — Wet Bulb

ARI* capacity ratings


11/30411

ARI* CAPACITY RATINGS — 50HJ004-014

LEGEND

*Air-Conditioning & Refrigeration Institute.†Applies only to units with capacity of 65,000 Btuh or less.**ARI does not require EER ratings for units with capacity below

65,000 Btuh. For these units, the EER rating at ARI Standard conditions isprovided for information only.

††IPLV is not applicable to single-compressor units.

NOTES:1. Rated in accordance with ARI Standard 210-94 or 360-93.2. Ratings are net values, reflecting the effects of circulating fan heat.

Ratings are based on:

Cooling Standard: 80 F db, 67 wb indoor entering-air temperatureand 95 F db outdoor entering-air temperature.

IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and80 F db outdoor entering-air temperature.

3. All 50HJ004-014 units are in compliance with ASHRAE 90.1 2001Energy Standard for minimum SEER and EER requirements. Refer tostate and local codes or visit the following website: http://solstice.crest.org/efficiency/bcap to determine if compliance with thisstandard pertains to a given geographical area of the United States.

ARI* CAPACITY RATINGS — 50HJ015,017

LEGEND

*Air Conditioning and Refrigeration Institute.NOTES:

1. Rated in accordance with ARI Standards 360-93 and 270-95.2. ARI ratings are net values, reflecting the effects of circulating fan heat.3. Ratings are based on:

Cooling Standard: 80 F db, 67 F wb indoor entering-air temperatureand 95 F db air entering outdoor unit.IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and80 F db outdoor entering-air temperature.

4. All 50HJ015, 017 units are in compliance with ASHRAE 90.1 2001Energy Standard for minimum SEER and EER requirements. Refer tostate and local codes or visit the following website: http://solstice.crest.org/efficiency/bcap to determine if compliance with thisstandard pertains to a given geographical area of the United States.

ARI* CAPACITY RATINGS — 50HJ020-028

LEGEND

*Air Conditioning and Refrigeration Institute.†IPLV values are calculated based on control configuration T.CTL = 2

(2 Stage Y1).**Size 028 unit is not listed with ARI, but is tested to ARI standards.

NOTES:1. Rated in accordance with ARI Standards 360-93 and 270-95.2. ARI ratings are net values, reflecting the effects of circulating fan heat.

3. Ratings are based on:Cooling Standard: 80 F db, 67 F wb indoor entering-air temperatureand 95 F db air entering outdoor unit.IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and80 F db outdoor entering-air temperature.

UNIT50HJ

NOMINALTONS

NET COOLING CAP(Btuh)

TOTALkW

SEER† EER SOUND RATING

(decibels) IPLV††

004 3 36,000 3.2 13.0 11.2** 76 N/A

005 4 46,000 4.1 13.0 11.1** 76 N/A

006 5 61,000 5.5 13.0 11.0** 80 N/A

007 6 74,000 6.7 — 11.1 80 N/A

008 71 / 2 73,000 8.2 — 11.0 82 11.6

009 81 / 2 104,000 8.8 — 11.8 82 13.1

012 10 120,000 10.9 — 11.0 84 11.4

014 121 / 2 140,000 14.3 — 9.8 86 10.5

EER — Energy Efficiency RatioIPLV — Integrated Part-Load ValueSEER — Seasonal Energy Efficiency Ratio

UNIT50HJ

NOMINALTONS

NET COOLINGCAPACITY (Btuh)

TOTALWATTS

EER SOUND RATING

(decibels) IPLV

015 12 152,000 14,074 10.80 8.8 11.8

017 15 176,000 16,296 10.80 8.8 11.7


UNIT50HJ

NOMINALTONS

CFM NET COOLING

CAPACITY (Btuh)TOTAL

kW EER

SOUND RATING(dB)

IPLV†

020 18 5,500 200,000 18.5 10.8 81.7 12.0

024 20 6,000 234,000 21.7 10.8 81.7 11.9

028** 25 7,500 278,000 27.8 10.0 84.6 10.9



12/30412

→ 50TFF004-014

*Factory-installed.†Field-installed.

NOTES:1. Refer to unit price pages or contact your local representative for accessory and option package information.2. Some options may increase product lead times.

ITEM OPTION* ACCESSORY†

100% Open Two-Position Damper X


Condenser Coil Grille X

Condenser Coil Hail Guard Assembly X

Convenience Outlet (Load Side) X

Copper Fins Indoor and Outdoor Coil XCopper Fins Outdoor Coil X

E-Coat Outdoor Coil (Aluminum) X

E-Coat Outdoor Coil (Copper) X

EconoMi$er IV with Corporate Controls X X

EconoMi$er2 (for use with PremierLink™ or Third Party Controls) X X

EconoMi$er2 Hinged Panel Kit X

Electric Heat X

Electronic Programmable Thermostat X

Energy$Recycler™ Mounting Kit X

Energy$Recycler Supply Air Blower X

Energy$Recycler Transformer for 460 v X

Energy$Recycler Transformer for 575 v X

Energy$Recycler Unit X

Enthalpy or Differential Enthalpy Sensor XFan/Filter Status X

High-Static Motor and Drive X

Humidistat X

Indoor Air Quality (CO2) Sensor X

Light Commercial Thermidistat™ Device X

Low Ambient Kit X

Manual Outdoor-Air Damper X

Motormaster® I, II, IV Head Pressure Control X

Novar Control X

Outdoor Air Enthalpy Sensor X

Outdoor Air/Return Air Temperature Sensor X

Power Exhaust Transformer for 575 v X

Power Exhaust with Barometric Relief X

Pre-Coat Aluminum Fins on Outdoor Coil XPremierLink DDC Communicating Control X X

Return Air Enthalpy Sensor X

Return Air Temperature Sensor X

Roof Curbs (Vertical and Horizontal Discharge) X

Thermostats and Subbases X

Thru-the-Bottom Utility Connections X

Time Guard II Control Circuit (Compressor Cycle Delay) X

Unit-Mounted Non-Fused Disconnect X

Options and accessories

905


13/30413

→ 50TJ016-028

*Factory-installed.†Field-installed.**Available as a DEC special order only.




Barometric Relief Damper (Not for use with horizontal roof curb) X

Condenser Coil Hail Guard Assembly (016-025) X


Copper Fins Indoor and Outdoor Coil X

Copper Fins Outdoor Coil XE-Coat Outdoor Coil (Aluminum) X





Electric Heat X


Enthalpy or Differential Enthalpy Sensor X

Fan/Filter Status X


Hinged Access Panels X

Horizontal Adapter Curb (016-025) X

Humidistat X

Hydronic Glycol Coil XIndoor Air Quality (CO2) Sensor X


Low Ambient Kit X


MoistureMi$er™ Dehumidification Package X

Motormaster® I, V Head Pressure Control X

Novar Control X**


Power Exhaust without Barometric Relief X

Pre-Coat Aluminum Fins on Outdoor Coil X

PremierLink DDC Communicating Control X** X



Roof Curbs (Vertical and Horizontal Discharge) XThermostats and Subbases X


Unit-Mounted Non-Fused Disconnect X**

Winter Start Time Delay X

905


14/30414

→ 50HJ004-014






COBRA™ Energy Recovery Unit X

COBRA Full Perimeter Roof Curb X

COBRA Sleeper Rail (for use with Standard Unit Roof Curb) X

Condenser Coil Grille XCondenser Coil Hail Guard Assembly X



Copper Fins Outdoor Coil X

E-Coat Outdoor Coil (Aluminum) X





Electric Heat X


Energy$Recycler™ Mounting Kit X

Energy$Recycler Supply Air Blower X

Energy$Recycler Transformer for 460 v XEnergy$Recycler Transformer for 575 v X

Energy$Recycler Unit X


Fan/Filter Status X



Humidistat X

Humidi-MiZer™ Adaptive Dehumidification System X

Indoor Air Quality (CO2) Sensor X


Low Ambient Kit X


Motormaster® I, II, IV Head Pressure Control X

Novar Control XOutdoor Air Enthalpy Sensor X

Outdoor Air/Return Air Temperature Sensor X

Power Exhaust Transformer for 575 v X

Power Exhaust with Barometric Relief X


PremierLink DDC Communicating Control X X



Roof Curbs (Vertical and Horizontal Discharge) X

Thermostats and Subbases X

Thru-the-Bottom Utility Connections X


Unit-Mounted Non-Fused Disconnect X

Options and accessories (cont)

905


15/30415

→ 50HJ015,017

*Factory-installed.†Field-installed.**Available as a DEC special order only.




Barometric Relief Damper (Not for use with horizontal roof curb) X

Condenser Coil Hail Guard Assembly X



Copper Fins Outdoor Coil XE-Coat Outdoor Coil (Aluminum) X





Electric Heat X



Fan/Filter Status X



Horizontal Adapter Curb X

Humidistat X

Hydronic Glycol Coil XIndoor Air Quality (CO2) Sensor X


Low Ambient Kit X


MoistureMi$er™ Dehumidification Package X

Motormaster® I, V Head Pressure Control X

Novar Control X**


Power Exhaust without Barometric Relief X


PremierLink DDC Communicating Control X** X



Roof Curbs (Vertical and Horizontal Discharge) XThermostats and Subbases X


Unit-Mounted Non-Fused Disconnect X**

Winter Start Time Delay X

905


16/30416

→ 50HJ020-028




EconoMi$er IV X X

Power Exhaust X X

Barometric Relief X X

Hail Guard X X

Horizontal Kit X X

CO2 Sensor X XReturn Smoke Detector X X

Supply Smoke Detector X

Return and Supply Smoke Detector X

Non-Fused Disconnect X

Non-Powered Convenience Outlet X

Relative Enthalpy Sensor X X

Differential Relative Enthalpy Sensors X

Pre-Coat Condenser X

E-Coat Condenser X

Copper Condenser X

Copper Evaporator X

E-Coat Copper Evaporator X

Low Range Drive X

Mid-Low Range Drive XMid-High Range Drive X

High Range Drive X

Roof Curb (14 in.) X

Roof Curb (24 in.) X

Low Electric Heat X

High Electric Heat X

Medium Electric Heat X

Drip Edge X

Two-Position Damper X X

Condensate Overflow Switch X

Phase Loss Detection X

Manual Damper X X

Thermostat and Subbase X

Hinged Access Panels XElectronic Programmable Thermostat X




Return Air CO2 Sensor X

Indoor Air Quality (CO2) Room Sensor X


905


17/30417

Carrier PremierLink™ controls are available as afactory-installed option or as a field-installed accessory.The controls can be used to actively monitor and control allmodes of operations.Roof curbs (horizontal and vertical) permit installa-tion and securing of ductwork to curb prior to mountingunit on the curb. Both 14-in. and 24-in. roof curbs areavailable.EconoMi$er IV is available as a factory-installed optionin vertical supply/return configuration only for unitsizes 004-014. Vertical or horizontal configuration is avail-able for unit sizes 015-028. (The EconoMi$er IV is avail-able as a field-installed accessory for horizontal and/or ver-tical supply return configurations.) The EconoMi$er IV isprovided with an industry standard, stand-alone, solid-statecontroller that is easy to configure and troubleshoot. TheEconoMi$er IV is compatible with non-DDC applications.The EconoMi$er IV is equipped with a barometric reliefdamper capable of relieving up to 100% return air (for unitsizes 004-014 only). Dry bulb outdoor-air temperature sen-sor is provided as standard. The return air sensor, indoor

enthalpy sensor, and outdoor humidity sensor are providedas field-installed accessories to provide enthalpy control,differential enthalpy control, and differential dry bulb tem-perature control.EconoMi$er2 is available as a factory-installed optionin vertical supply/return configuration only. (TheEconoMi$er2 is available as a field-installed accessory forhorizontal and/or vertical supply return configurations.)The EconoMi$er2 is provided without a controller for usewith factory-installed PremierLink™ controls or field-installed third-party controls. The EconoMi$er2 isequipped with a barometric relief damper capable of reliev-ing up to 100% return air. Dry bulb outdoor-air tempera-ture sensor is provided as standard. The enthalpy, differen-

tial temperature (adjustable), and differential enthalpy con-trol are provided as field-installed accessories. TheEconoMi$er2 is capable of control from a 4 to 20 mA sig-nal through optional 4 to 20 mA design without micropro-cessor control (required for PremierLink™ or third partycontrol interface).Manual outdoor-air damper can be preset to admit upto 50% outdoor air for year round ventilation.

Two-position damper package is available as an acces-sory. Both 25% or 100% outdoor air dampers areavailable.Head pressure control (Motormaster®) package maintains condensing temperature between 90 F and 110 Fat outdoor ambient temperatures down to –20 F bycondenser-fan speed modulation or condenser-fan cyclingand wind baffles.Electric resistance heaters are UL listed and availableto match heating requirements. Single point kits availablefor each heater when required.Unit-mounted, non-fused disconnect switch providesunit power shutoff. The switch is accessible from outsidethe unit and provides power off lockout capability.Convenience outlet is factory-installed and internallymounted with easily accessible 115-v female receptacle.Compressor cycle delay (Time Guard II) prevents unitfrom restarting for minimum of 5 minutes after shutdown.Thru-the-bottom utility connectors permit electricaconnections to be brought to the unit through the basepan

Fan/filter status switch provides status of indoor (evaporator) fan (ON/ OFF) or filter (CLEAN/DIRTY).Energy$Recycler™ unit recovers energy from buildingexhaust air and pre-conditions ventilation air to allow high-er ventilation requirements and minimizing energy cost.Power exhaust accessory will provide system exhaust oup to 100% of return air (vertical only). The power exhausis a field-installed accessory (separate vertical and horizontal design).Ultraviolet germicidal lamps eliminate odor causingmold and fungus that may develop in the wet area of theevaporator section of the unit. The high output, low temperature germicidal lamps are field installed in the evaporator section of the unit, aimed at the evaporator coil and

condensate pan.Hinged panel option provides hinged access panels forthe filter, compressor, evaporator fan, and control box areas. Filter hinged panels permit tool-less entry for changing filters. Each hinged panel is permanently attached tothe rooftop unit.

→

905


18/30418


ACCESSORY ENERGY$RECYCLER™ UNIT (3 TO 121/2 TON UNITS ONLY)

EXHAUSTAIR

CONDENSER-FANDISCHARGE AIR

FRESH AIRINLET

MOUNTINGKIT

FILTERACCESS

OUTDOOR-AIRINLET

RETURN AIRBAFFLE

ROOF CURB

RETURN AIR

SUPPLY AIR

OUTDOOR AIRFLOW

INDOOR AIRFLOW

TR1

24 VacCOM

TR

24VacHOT

1 2

3 4

5

EF EF1

+ _

P1

T1

P

T

N

EXH

2V 10V

EXH

Set

Set

2V 10V

2V 10V

DCV

DCV

FreeCool

B C

A D

SO+

SR+

SR

SO

AQ1

AQ

DCV

MinPos

Open

Max

N1 ECONOMI$ER IV

CONTROLLER

OUTSIDE AIRTEMPERATURE SENSOR

LOW AMBIENTSENSOR

ACTUATOR

WIRINGHARNESS

→ ECONOMI$ER IV CONTROL → GEAR-DRIVEN ECONOMI$ER IVCOMPONENT PARTS

905


19/30419

UNIT-MOUNTED DISCONNECT (Sizes 015-028)UNIT-MOUNTED DISCONNECT (Sizes 004-014)

CONVENIENCE OUTLET


20/30420


CONTROL BOX HINGED PANEL OPTION,50HJ008-014 UNITS SHOWN

CONTROL BOX HINGED PANEL OPTION,50HJ004-007 UNITS SHOWN

COMPRESSOR HINGED PANEL OPTION,50HJ008-014 UNITS SHOWN COMPRESSOR HINGED PANEL OPTION,50HJ004-006 UNITS SHOWN


21/30421

EVAPORATOR-FAN HINGED PANEL OPTION FILTER HINGED PANEL OPTION

BAROMETRIC RELIEF OR POWER EXHAUST(Sizes 015-028 Shown)


22/30422

LEGEND

*Evaporator coil fin material/condenser coil fin material. Contact your local representative fordetails about coated fins.

†Weight of 14-in. roof curb.**Single phase/three phase.

UNIT SIZE 50TFF 004 005 006 007

NOMINAL CAPACITY (tons) 3 4 5 6

OPERATING WEIGHT (lb)Unit

Al/Al* 365 375 395 470Al/Cu* 370 381 402 479Cu/Cu* 373 387 410 490

EconoMi$er IV 50 50 50 50Roof Curb† 115 115 115 115

COMPRESSOR Reciprocating ScrollQuantity 1 1 1 1No. Cylinders (per circuit) 2 2 2 2Oil (oz) 50 50 50 54

REFRIGERANT TYPE R-22Operating Charge (lb-oz)

Circuit 1 4-4 6-6 6-14 9-0Circuit 2 — — — —

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced FinsRows...Fins/in. 1...17 2...17 2...17 2...17Total Face Area (sq ft) 8.36 8.36 10.42 10.42

CONDENSER FAN Propeller TypeNominal Cfm 3500 4000 4000 4000Quantity...Diameter (in.) 1...22.0 1...22.0 1...22.0 1...22.0Motor Hp...Rpm 1 / 4...1100 1 / 4...1100 1 / 4...1100 1 / 4...1100Watts Input (Total) 325 325 325 325

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy FinsExpansion Device Acutrol™ Metering DeviceRows...Fins/in. 2...15 2...15 3...15 4...15Total Face Area (sq ft) 4.17 5.5 5.5 5.5

EVAPORATOR FAN Centrifugal TypeQuantity...Size (in.) Std 1...10 x 10 1...10 x 10 1...11 x 10 1...10 x 10

Alt 1...10 x 10 1...10 x 10 1...10 x 10 —High-Static 1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10

Type Drive Std Direct Direct Direct BeltAlt Belt Belt Belt —High-Static Belt Belt Belt Belt

Nominal Cfm 1200 1600 2000 2100Maximum Continuous Bhp Std .34 .75 1.20 2.40

Alt 1.20 1.20 1.30/2.40** —High-Static 2.40 2.40 2.90 2.90

Motor Frame Size Std 48 48 48 56Alt 48 48 56 —High-Static 56 56 56 56

Nominal Rpm High/ Low Std 860/800 1075/970 1075/1040 —Alt 1620 1620 1725 —High-Static 1725 1725 1725 1725

Fan Rpm Range Std — — — 1070-1460Alt 760-1000 835-1185 900-1300 —High-Static 1075-1455 1075-1455 1300-1685 1300-1685

Motor Bearing Type Ball Ball Ball BallMaximum Allowable Rpm 2100 2100 2100 2100Motor Pulley Pitch Diameter Min/Max (in.) Std — — — 2.8/3.8

Alt 1.9/2.9 1.9/2.9 2.8/3.8 —High-Static 2.8/3.8 2.8/3.8 3.4/4.4 3.4/4.4

Nom ina l Mo tor S ha ft Dia me te r ( in.) S td 1 / 2 1 / 2 1 / 2 5 / 8Alt 1 / 2 1 / 2 5 / 8 —High-Static 5 / 8 5 / 8 5 / 8 5 / 8

Fan Pulley Pitch Diameter (in.) Std — — — 4.5Alt 4.5 4.0 5.5 —High-Static 4.5 4.5 4.5 4.5

Belt, Quantity...Type...Length (in.) Std — — — 1...A...39Alt 1...A...36 1...A...36 1...A...40 —

High-Static 1...A...39 1...A...39 1...A...40 1...A...40Pulley Center Line Distance (in.) Std — — — 14.7-15.5Alt 10.0-12.4 10.0-12.4 14.7-15.5 —High-Static 10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5

Speed Change per Full Turn ofMovable Pulley Flange (rpm) Std

— — — 80

Alt 48 70 80 —High-Static 65 65 60 60

Movable Pulley Maximum Full TurnsFrom Closed Position Std

— — — 5

Alt 5 5 6 —High-Static 6 6 5 5

Factory Setting Std — — — 3Alt 3 3 3 —High-Static 31 / 2 31 / 2 31 / 2 31 / 2

Factory Speed Setting (rpm) Std — — — 1226Alt 856 975 1100 —High-Static 1233 1233 1416 1416

Fan Shaft Diameter at Pulley (in.) 5 / 8 5 / 8 5 / 8 5 / 8

HIGH-PRESSURE SWITCH (psig)Standard Compressor Internal Relief (Differential) 450 ± 50 500 ± 50Cutout 428 428Reset (Auto.) 320 320

LOSS-OF-CHARGE (LOW-PRESSURE) SWITCH (psig)Cutout 7 ± 3

Reset (Auto.) 22 ± 7FREEZE-PROTECTION THERMOSTAT (F)

Opens 30 ± 5Closes 45 ± 5

OUTDOOR-AIR INLET SCREENS Cleanable. Screen size and quantity varies with option selected.

RETURN-AIR FILTERS ThrowawayQuantity...Size (in.) 2...16 x 25 x 2

Al — AluminumBhp — Brake HorsepowerCu — Copper

Physical data — 50TFF004-007

50TFF


23/30423

LEGEND

*Evaporator coil fin material/condenser coil fin material. Contact your local representative fordetails about coated fins.

†Weight of 14-in. roof curb.

NOTES:1. The 50TFF units have a loss-of-charge switch located in the liquid line.2. High-static motor not available on size 014 units.

UNIT SIZE 50TFF 008 009 012 014

NOMINAL CAPACITY (tons) 71 / 2 81 / 2 10 121 / 2

OPERATING WEIGHT (lb)Unit

Al/Al* 755 760 915 930Al/Cu* 766 776 937 957Cu/Cu* 778 787 960 980

EconoMi$er IV 75 75 75 75Roof Curb† 143 143 143 143

COMPRESSOR Reciprocating Reciprocating Reciprocating ScrollQuantity 2 2 2 2

No. Cylinders (per circuit) 2 2 2 2Oil (oz) 42 ea 65 ea 54 ea 54 ea

REFRIGERANT TYPE R-22, Acutrol™ Metering DeviceOperating Charge (lb-oz)

Circuit 1 4-13 6-14 7- 3 8-10Circuit 2 4-14 9- 2 7-13 8- 6

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced FinsRows...Fins/in. 1...17 2...17 2...17 2...17Total Face Area (sq ft) 20.50 18.00 20.47 25.00

CONDENSER FAN Propeller TypeNominal Cfm 6400 6400 7000 7000Quantity...Diameter (in.) 2...22 2...22 2...22 2...22Motor Hp...Rpm 1 / 4...1100 1 / 4...1100 1 / 4...1100 1 / 4...1100Watts Input (Total) 600 600 600 600

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device, Face SplitRows...Fins/in. 3...15 3...15 3...15 4...15Total Face Area (sq ft) 8.0 8.0 10.0 11.1

EVAPORATOR FAN Centrifugal TypeQuantity...Size (in.) Std 1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15

Alt 1...15 x 15 — 1...15 x 15 1...15 x 15High-Static 1...15 x 15 1...15 x 15 1...15 x 15 —

Type Drive Std Belt Belt Belt BeltAlt Belt — Belt BeltHigh-Static Belt Belt Belt —

Nominal Cfm 3000 3100 4000 5000Maximum Continuous Bhp Std 2.40 2.40 2.40 3.70

Alt 2.40 — 2.90 5.25High-Static 3.70 3.70 5.25 —

Motor Frame Size Std 56 56 56 56Alt 56 — 56 56High-Static 56 56 56 —

Fan Rpm Range Std 590- 840 685- 935 685- 935 860-1080Alt 685- 935 — 835-1085 830-1130High-Static 860-1080 860-1080 830-1130 —

Motor Bearing Type Ball Ball Ball BallMaximum Allowable Rpm 2100 2100 2100 2100Motor Pulley Pitch Diameter Min/Max (in.) Std 2.4/3.4 2.8/3.8 2.8/3.8 4.0/5.0

Alt 2.8/3.8 — 3.4/4.4 3.1/4.1High-Static 4.0/5.0 4.0/5.0 2.8/3.8 —

Nominal Motor Shaft Diameter (in.) Std 5 / 8 5 / 8 5 / 8 7 / 8Alt 5 / 8 — 7 / 8 7 / 8High-Static 7 / 8 7 / 8 7 / 8 —

Fan Pulley Pitch Diameter (in.) Std 7.0 7.0 7.0 8.0Alt 7.0 — 7.0 5.9High-Static 8.0 8.0 5.8 —

Belt, Quantity...Type...Length (in.) Std 1...A...49 1...A...49 1...A...49 1...A...52Alt 1...A...49 — 1...A...49 1...BX...46High-Static 1...A...55 1...A...55 1...BX...46 —

Pulley Center Line Distance (in.) Std 16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50Alt 15.75-19.25 — 15.85-17.50 15.85-17.50High-Static 15.75-19.25 16.75-19.25 15.85-17.50 —

Speed Change per Full Turn ofMovable Pulley Flange (rpm) Std 50 50 50 44

Alt 50 — 50 50High-Static 60 60 60 —

Movable Pulley Maximum Full TurnsFrom Closed Position Std 5 5 5 5

Alt 5 — 5 6High-Static 5 5 6 —

Factory Setting Std 5 5 5 5Alt 5 — 5 5High-Static 5 5 5 —

Factory Speed Setting (rpm) Std 590 685 685 860Alt 685 — 835 887High-Static 860 860 887 —

Fan Shaft Diameter at Pulley (in.) 1 1 1 1

HIGH-PRESSURE SWITCH (psig)Standard Compressor Internal Relief (Differential) 450 ± 50 500 ± 50

Cutout 428 428Reset (Auto.) 320 320

LOW-PRESSURE SWITCH (psig)Cutout 7 ± 3Reset (Auto.) 22 ± 7

FREEZE-PROTECTION THERMOSTAT (F)Opens 30 ± 5Closes 45 ± 5

OUTDOOR-AIR INLET SCREENS Cleanable. Screen size and quantity varies with option selected.

RETURN-AIR FILTERS ThrowawayQuantity...Size (in.) 4...16 x 20 x 2 4...16 x 20 x 2 4...20 x 20 x 2 4...20 x 20 x 2

Al — AluminumBhp — Brake HorsepowerCu — Copper

Physical data — 50TFF008-014


24/30424

Base unit dimensions — 50TFF004-007

50TFF


25/30425

Base unit dimensions — 50TFF008-014


26/30426

Accessory dimensions — 50TFF004-007

ROOF CURBACCESSORY

A UNIT SIZE

CRRFCURB001A01 1′-2″

[356] 50TFF004-007

CRRFCURB002A01 2′-0″

[610]

NOTES:1. Roof curb accessory is shipped disassembled.

2. Insulated panels.3. Dimensions in [ ] are in millimeters.4. Roof curb: galvanized steel.5. Attach ductwork to curb (flanges of duct rest on

curb).6. Service clearance: 4 ft on each side.

7. Direction of airflow.

8. Connector packages CRBTMPWR001A01 and002A01 are for thru-the-curb type gas. PackagesCRBTMPWR003A01 and 004A01 are for thru-the-bottom type gas connections.

CONNECTORPKG. ACCY.

B CD ALTDRAINHOLE

GAS POWER CONTROL ACCESSORYPWR

CRBTMPWR001A01

1′-911 / 16″ [551]

1′-4″ [406]

13 / 4″ [44.5]

3 / 4″ [19] NPT

3 / 4″ [19] NPT

1 / 2″ [12.7]NPT

1 / 2″ [12.7]NPT

CRBTMPWR002A01 11 / 4″ [31.7]

CRBTMPWR003A01 1 / 2″

[12.7] NPT 3 / 4″ [19] NPT

CRBTMPWR004A01 3 / 4″

[19] NPT 11 / 4″ [31.7]

50TFF


27/30427

Accessory dimensions — 50TFF008-014

CONNECTORPKG. ACCY. B C

D ALTDRAINHOLE

GAS POWER CONTROL ACCESSORY

PWR

CRBTMPWR001A01

2′-87 / 16″ [827]

1′-1015 / 16″ [583]

13 / 4″ [44.5]

3 / 4″ [19] NPT

3 / 4″ [19] NPT

1 / 2″ [12.7]NPT

1 / 2″ [12.7]NPT

CRBTMPWR002A01 11 / 4″ [31.7]

CRBTMPWR003A011 / 2″

[12.7] NPT 3 / 4″ [19] NPT

CRBTMPWR004A013 / 4″

[19] NPT 11 / 4″ [31.7]

NOTES:1. Roof curb accessory is shipped disassem-

bled.2. Insulated panels: 1-in. thick polyurethane

foam, 13 / 4 lb density.

3. Dimensions in [ ] are in millimeters.4. Roof curb: 16-gage steel.5. Attach ductwork to curb (flanges of duct rest

on curb).6. Service clearance 4 ft on each side.

7. Direction of airflow.

8. Connector packages CRBTMPWR001A01and 2A01 are for thru-the-curb gas type.Packages CRBTMPWR003A01 and 4A01are for the thru-the-bottom type gasconnections.

ROOF CURBACCESSORY “A”

UNITSIZE

CRRFCURB003A01 1′-2″ [356] 50TFF008-014CRRFCURB004A01 2′-0″ [610]


28/30428

I Determine cooling and heating loads at designconditions.Given:Required Cooling Capacity (TC) . . . . . .67,000 BtuhSensible Heat Capacity (SHC). . . . . . . .46,000 BtuhRequired Heating Capacity. . . . . . . . . .60,000 BtuhOutdoor Entering-Air Temperature db . . . . . . . .95 FOutdoor Entering-Air Temperature wb. . . . . . . .75 F

Outdoor-Air Entering Airflow Cfm . . . . . . 450 CfmOutdoor-Air Winter Design Temperature . . . . . . 0° FIndoor-Air Winter Design Temperature . . . . . . .70 FAir to room including outdoor air . . . . . . 2000 CfmExternal Static Pressure . . . . . Supply — 0.60 in. wg

Return — 0.2 in. wgIndoor-Air Temperature db (room air) . . . . . . . .78 FIndoor-Air Temperature wb (room air) . . . . . . . .65 FIndoor-Air Exhaust Cfm . . . . . . . . . . . . . . 450 CfmElectrical Characteristics (V-Ph-Hz) . . . . . . 230-3-60Vertical discharge unit with Energy$Recycler™ unitrequired.

II Determine fan speed and power requirementsat design conditions.

Before entering the Fan Performance tables, calculatethe total static pressure required based on unit com-ponent. From the given and the Accessory/FIOPStatic Pressure table of the 50TFF find:External static pressure supply 0.6 in. wgExternal static pressure return 0.2 in. wgAccessory static — None 0.0 in. wgTotal Static 0.8 in. wgEnter the Fan Performance table for verticaldischarge units of the 50TFF006 at 2000 cfm. Thestandard motor will provide 0.92 in. wg ESP at highspeed. Watts is 1144.NOTE: Convert to Fan Heat using the formula below.Indoor Fan Heat = watts x 3.413 Btuh/watt

= 1144 x 3.413= 3904 Btuh

III Select Energy$Recycler unit based on OutdoorEntering Cfm.Entering the Energy$Recycler Product Data literature,see the Cooling Ratings table in the Capacities sec-tion. At 450 cfm entering outdoor airflow, chooseModel 62AQ060.Using 450 cfm outdoor supply airflow, 95 F OD DB,and 75 F OD WB find performance of the 62AQ060at these conditions:Energy$Recycler Gross Cooling

Capacity is 13,000 BtuhEnergy$Recycler Gross Sensible

Capacity is 10,090 BtuhCompressor power is 1.06 kWEnergy$Recycler Leaving db is 73 FEnergy$Recycler Leaving wb is 66.9 F

IV Using the simplified* method below, calculatethe approximate mixed air temperature for therooftop unit evaporator coil.Using the outdoor-air entering cfm, the room cfm andthe room exhaust airflow with their respective db andwb temperatures, determine the db and wb enteringthe rooftop evaporator coil.

a) Estimate the mixed air db to the evaporator coil.t mix db = ((cfm oa x t oa db) + ((cfm ra – cfm exh)x t ra db)) / ((cfm ao + (cfm ra – cfm exh)))= ((450 cfm x 73.0 F) + ((2000 cfm – 450 cfm)

x 78 F)) / ((450 cfm + (2000 cfm – 450 cfm)))Mixed air into the rooftop evaporator coil= 76.9 F db

b) Estimate the mixed air wb to the evaporator coil.t mix wb* = ((cfm oa x t oa wb) + ((cfm ra – cfmexh) x tra wb))/ ((cfm oa + (cfm ra – cfm exh)))= ((450 cfm x 66.9 F) + ((2000 cfm – 450 cfm)

x 65 F)) / ((450 cfm + (2000 cfm – 450 cfm)))Mixed air temperature into the rooftop evaporator= 65.40 F wb*Simplified method of determining wet bulb (wb)temperature of mixture. This approximation is usedbecause the wb lines in the area of the psychromet-ric chart used in the calculation is relatively linear,providing a close approximation. A more accuratesolution can be found using the E-Cat program.

LEGEND

V Determine the cooling load requirement for therooftop unit.Customer load is 67,000 BtuhLess TC supplied by the

Energy$Recycler –13,000 BtuhRooftop cooling load required is 54,000 Btuh

VI Select the rooftop unit based on mixed air

entering conditions and cooling load.Enter cooling capacity table at outdoor entering tem-perature 95 F, mixed air entering evaporator at2000 cfm, 76.9 F db, and 65.4 F wb. Interpolation isrequired.The 50TFF006 will provide a total gross coolingcapacity of 58,250 Btuh, a sensible cooling of41,330 Btuh, and a kW rating of 5.69.Because these values were not at 80 F entering db,they were calculated based on the notes following theCooling Capacity tables.NOTE: Unit ratings are gross capacities and do notinclude the effect of evaporator-fan motor heat. Tocalculate net capacities see Steps VII and VIII.

VII Select net heating capacity of unit to meetdesign condition requirements.Enter the 62AQ060 Heating rating table at 450 cfm.At 70 F and 0° F find the heating value for theEnergy$Recycler to be 15.2 MBtuh.Rooftop fan heat from Step II 3,904 BtuhEnergy$Recycler Heat Capacity 15,200 Btuhadd Energy$Recycler optional supply fan heat if supplied 0 BtuhTotal Unit heat with Energy$Recycler 19,104 Btuh

cfm — cubic feet per minute of air

db — dry bulbexh — Energy$Recycler dischargemix — mixture of outdoor + return airoa — outside air leaving Energy$Recyclerra — return airsa — supply air at coil (sa = oa + ra – exh)t — temperaturewb — wet bulb

Selection procedure (50TFF006 example)

50TFF


29/30429

The required heating capacity is 60,000 Btuh. Deter-mine additional electric heat capacity in kW. There-fore 40,896 Btuh (60,000 Btuh – 19,104 Btuh) ofadditional heat is required.Determine additional electric heat in kW.(40,896/3413 Btuh/kW) = 11.98 kW of additionalheat is required.Enter Electric Heating Capacities tables on page 68,for the 50TFF006 at 208/230 v, 3 phase. The16.0 kW heater at 240 v most closely satisfies theheating requirement. To calculate kW at 230 v usethe multiplication factors table.16.0 x 0.92 = 14.72 kW16.0 x 0.92 x 3413 Btuh/kW = 50,239 BtuhTotal unit net heating capacity is 69,343 (50,239 +19,104) Btuh. The 50TFF006 unit with accessory16.0 kW electric heater is sufficient.

VIII Determine net cooling capacity.Cooling capacities are gross capacities anddo not include indoor (evaporator) or optionalEnergy$Recycler™ supply fan heat.Determine net cooling capacity using the followingformula:Net Capacity = (Gross Capacity Rooftop Unit +Energy$Recycler) – (Indoor [evaporator] fan motor[IFM] Heat + Optional Energy$Recycler Supply Fanmotor heat)Gross Total Cooling

Rooftop unit 58,250 BtuhEnergy$Recycler 13,000 BtuhTotal 71,250 Btuh

LessIFM heat (from Step II) BtuhOpt. Energy$Recycler SupplyFan Motor Heat noneNet Total Capacity 67,346 Btuh

Gross Sensible CoolingRooftop unit 41,330 BtuhEnergy$Recycler 10,090 BtuhTotal 51,420 Btuh

LessIFM heat (from Step II) BtuhOpt. Energy$Recycler SupplyFan Motor Heat noneNet Sensible Capacity 47,516 Btuh

IX Determine the operating watts of the unit.Cooling with Energy$Recycler in operation:a) Rooftop unit:

Using the 50TFF006 cooling capacity table andthe calculations described in Step VI of this proce-dure, determine:compressor watts 5,690 wattsIndoor fan motor from Step II 1,144 wattsOutdoor fan motor from Physical Data table find1/ 4 hp†

Assume OD motor efficiency is 0.75.Watts = (746 x hp)/(motor Eff)

= (746 x 1/ 4)/(0.75)= 249 watts

†Dual circuit units will have two outdoor fans, doublevalues.

b) Energy$Recycler:Compressor watts from 62AQ060Cooling Ratings table 1,060 wattsOptional supply fan fromfan curves none selectedExhaust fan operating watts from62AQ060 Exhaust Fan PerformanceCurve at 230-v, 450 cfm,0.2 in. wg, Static = 110 wattsTotal watts for the unit in operationat design conditions 8,253 watts

X Electrical data RLA, FLA, LRA, MCA andMOCP.Separate Power Supply:If the 62AQ is wired for separate power see the Elec-trical Data table.Single Power Supply with Unit:The unit is 230 v-3-60 Hz, so from the 50TFF Electri-cal Data table, find unit electrical data. For the rooftopunit the data is MCA = 27.3 amps, MOCP =35 amps, Min Unit Disconnect Size FLA = 29, and

LRA = 128.For this example follow the steps outlined in theApplication Data section of the Energy$RecyclerProduct Data for single power supply for all rooftopunits except size 014 (230-v) and 62AQ on 460-vpower supply. For other size and voltage conditionsfollow corresponding steps also outlined in theEnergy$Recycler Product Data Application datasection.From the Single Power Supply table (Electrical DataEnergy$Recycler Product Data) find 230 v, fo62AQ060300, “X” = 8.1 amps and “Y” = 9.3 ampsAdd “X” amps to the MCA and MOCP and add “Y”amps to the minimum disconnect size.

(MOCP calculation is 43.1. Round the value down to40. 40 is greater than the MCA of 35.4, therefore 40is the correct MOCP.)

The wiring to the unit must be suitable for the MCAcalculated above.The overcurrent protective device for the combinationload is equal to 40, thus a single disconnect may beused for BOTH the MAIN UNIT and the 62AQ pro-vided that the wire supplying the 62AQ is sized for aminimum of 33% of the maximum overcurrent pro-tection device value (i.e., 40 x .33 = 14 Amps). Nofurther subfusing is required.In this example a 40-amp disconnect would be usedfor the combined load of the 50TFF006 and the62AQ060 Energy$Recycler unit.

MCA MOCP FLA LRA50TFF 27.3 35 29 12862AQ 8.1 8.1 9.3 31.7Total 35.4 43.1 38.3 159.7


30/30430

COOLING CAPACITIES

50TFF004 (3 TONS)

Temp (F)Air EnteringCondenser

(Edb)

Air Entering Evaporator — Cfm/BF

900/0.11 1200/0.14 1500/0.17

Air Entering Evaporator — Ewb (F)

72 67 62 72 67 62 72 67 62

75TC 42.8 38.9 35.0 44.8 40.8 37.0 45.8 4 1.9 3 8.2SHC 2 0.0 24.5 28.7 21.8 27.5 32.8 23.0 3 0.0 3 6.0kW 2.91 2.81 2.70 2.99 2.88 2.78 3.02 2.92 2.82

85TC 40.8 36.9 33.3 42.5 38.7 35.0 43.6 39.9 3 6.1SHC 1 9.4 23.7 27.9 21.0 26.8 31.8 22.6 29.7 3 5.1kW 3.14 3.01 2.90 3.20 3.08 2.97 3.24 3.14 3.02

95TC 38.7 34.9 31.4 40.4 36.6 33.0 41.4 37.6 34.1SHC 1 8.6 22.9 27.0 20.3 26.0 30.9 22.0 28.8 34.0kW 3.35 3.21 3.09 3.42 3.29 3.16 3.47 3.35 3.22

105TC 36.5 32.8 29.2 38.1 34.3 30.9 39.0 35.2 32.4SHC 1 7.8 22.1 25.9 19.6 25.2 29.8 21.2 28.0 32.3kW 3.55 3.41 3.27 3.63 3.49 3.35 3.68 3.54 3.43

115TC 34.3 30.7 26.9 35.7 32.1 28.8 36.5 32.9 30.6SHC 1 7.0 21.3 24.8 19.0 24.4 28.8 20.5 27.1 30.6kW 3.76 3.60 3.45 3.84 3.68 3.54 3.88 3.74 3.64

50TFF006 (5 TONS)


(Edb)


1500/0.07 2000/0.09 2500/0.12


72 67 62 72 67 62 72 67 62

75TC 71.0 63.8 55.4 74.5 67.2 59.2 76.5 69.7 6 2.1SHC 3 3.9 41.5 47.9 37.4 47.4 55.8 40.6 52.8 6 1.8kW 5.04 4.82 4.62 5.20 4.97 4.76 5.29 5.06 4.87

85TC 69.2 61.0 54.2 72.9 65.6 57.2 75.2 68.1 6 1.5SHC 3 3.4 40.5 47.3 37.0 46.9 54.9 40.1 52.3 6 1.3kW 5.50 5.27 5.02 5.66 5.41 5.18 5.75 5.50 5.29

95TC 65.5 56.6 50.4 69.4 60.9 53.1 71.2 63.3 57.8SHC 3 2.1 38.8 45.6 35.8 45.3 52.6 39.1 50.9 57.8kW 5.88 5.62 5.37 6.01 5.76 5.53 6.12 5.87 5.67

105TC 61.9 53.1 47.1 65.4 56.6 50.5 67.1 58.8 54.5SHC 3 0.8 37.5 44.1 34.5 43.7 50.2 37.9 49.3 54.5kW 6.25 5.99 5.72 6.38 6.13 5.91 6.50 6.23 6.06

115TC 58.2 49.7 43.7 61.4 52.3 47.8 63.0 54.3 51.2SHC 2 9.5 36.1 42.5 33.2 42.1 47.8 36.7 47.6 51.2kW 6.63 6.35 6.08 6.75 6.49 6.29 6.88 6.59 6.46

50TFF005 (4 TONS)


(Edb)


1200/0.12 1600/0.15 2000/0.18


72 67 62 72 67 62 72 67 62

75TC 57.9 53.1 48.3 60.4 55.9 51.3 62.2 57.3 52.9SHC 2 7.2 33.3 39.2 29.4 37.2 44.8 31.4 40.3 49.1kW 4.07 3.93 3.79 4.17 4.03 3.90 4.24 4.08 3.96

85TC 55.7 50.8 45.3 57.7 53.4 48.5 59.4 55.0 50.2SHC 2 6.4 32.5 37.8 28.4 36.7 43.6 30.5 40.3 47.9kW 4.40 4.24 4.08 4.47 4.35 4.20 4.54 4.42 4.25

95TC 52.9 48.1 42.5 55.2 50.5 45.7 56.7 52.0 47.4SHC 2 5.5 31.5 36.4 27.6 35.6 42.2 29.7 39.2 46.7kW 4.70 4.54 4.36 4.78 4.63 4.47 4.87 4.70 4.56

105TC 50.1 45.3 39.8 52.3 47.6 42.8 53.6 48.9 44.9SHC 2 4.4 30.3 35.1 26.7 34.5 40.7 28.8 38.1 44.6kW 5.00 4.81 4.62 5.10 4.91 4.73 5.17 4.99 4.84

115TC 47.3 42.6 37.2 49.3 44.6 40.0 50.5 45.9 42.4SHC 2 3.4 29.2 33.7 25.9 33.3 39.3 27.8 37.1 42.4kW 5.30 5.07 4.88 5.42 5.19 4.99 5.48 5.28 5.12

50TFF007 (6 TONS)


(Edb)

Air Entering Evaporator — Cfm/BF1800/0.06 2100/0.08 2400/0.09 3000/0.11


72 67 62 72 67 62 72 67 62 72 67 62

75TC 86.6 80.0 73.6 87.8 80.3 73.2 90.8 84.1 77.2 93.2 86.6 79.7SHC 42.2 52.3 62.2 43.0 53.9 65.5 46.5 59.6 71.6 50.1 66.4 78.7kW 5.48 5.33 5.21 5.69 5.50 5.32 5.59 5.44 5.29 5.66 5.51 5.35

85TC 84.1 77.4 71.0 84.0 77.2 69.5 87.8 81.2 74.5 90.1 83.5 77.3SHC 41.4 51.3 61.1 41.7 53.1 64.0 45.5 58.6 70.3 49.4 65.4 76.7kW 6.17 6.00 5.85 6.21 6.04 5.83 6.27 6.11 5.94 6.35 6.19 6.02

95TC 81.6 74.7 68.5 81.0 73.5 66.3 84.8 78.2 71.8 87.0 80.4 74.8SHC 40.6 50.3 60.0 40.8 51.8 62.8 44.6 57.6 69.1 48.7 64.5 74.7kW 6.86 6.67 6.49 6.78 6.54 6.33 6.95 6.77 6.59 7.03 6.86 6.69

105TC 78.4 71.8 65.6 76.8 69.7 62.5 81.6 74.9 68.9 83.3 76.9 72.1SHC 39.4 49.2 58.7 39.4 50.3 61.1 43.5 56.4 67.4 47.4 63.1 72.0kW 7.60 7.39 7.20 7.30 7.05 6.80 7.72 7.50 7.31 7.77 7.59 7.41

115TC 75.1 68.7 62.5 72.5 65.5 58.7 78.0 71.5 66.1 79.5 73.3 69.3SHC 38.1 47.9 57.2 37.9 48.7 58.7 42.3 55.1 65.5 46.3 61.6 69.2kW 8.36 8.14 7.93 7.81 7.53 7.27 8.49 8.25 8.06 8.55 8.33 8.18

Performance data — 50TFF

Standard Ratings

LEGEND

NOTES:1. Direct interpolation is permissible. Do not extrapolate.2. The following formulas may be used:

tlwb = Wet-bulb temperature corresponding to enthalpy of air leavingevaporator coil (hlwb )

Where: h ewb = Enthalpy of air entering evaporator coil

3. The SHC is based on 80 F edb temperature of air entering evaporator

coil.Below 80 F edb, subtract (corr factor x cfm) from SHC.Above 80 F edb, add (corr factor x cfm) to SHC.

Interpolation is permissible.Correction Factor = 1.10 x (1 – BF) x (edb – 80).

BF — Bypass FactorEdb — Entering Dry-BulbEw b — Entering Wet-BulbkW — Compressor Motor Power InputLdb — Leaving Dry-BulbLwb — Leaving Wet-BulbSH C — Sensible Heat Capacity (1000 Btuh) GrossTC — Total Capacity (1000 Btuh) Gross

t ldb = t edb – sensible capacity (Btuh)

1.10 x cfm

hlwb = hewb – total capacity (Btuh)

4.5 x cfm

BYPASSFACTOR

(BF)

ENTERING AIR DRY-BULB TEMP (F)

79 78 77 76 75 under 75

81 82 83 84 85 over 85

Correction Factor

.05 1.04 2.07 3.11 4.1 4 5.18Use formula

shown below..10 .98 1.96 2.94 3.9 2 4.90.20 .87 1.74 2.62 3.4 9 4.36.30 .76 1.53 2.29 3.0 5 3.82

50TFF


31/30431

COOLING CAPACITIES (cont)

50TFF008 (71 / 2 TONS)


(Edb)


2250/0.07 2800/0.09 3000/0.10 3750/0.12


72 67 62 72 67 62 72 67 62 72 67 62

75TC 102. 8 94.8 86.2 105. 8 98.2 90.0 106.4 99. 0 90.8 109. 2 101. 6 93. 6SHC 49.4 61.8 73.2 52.6 67.8 81.6 53.6 69.8 84.0 58.2 77.4 92.2kW 7.14 6.82 6.50 7.28 6.98 6.68 7.32 7.04 6.72 7.46 7.18 6.86

85

TC 98.2 90.2 81.6 101. 8 93. 6 85.2 102.6 94. 4 86.0 104. 6 96.8 89.6

SHC 48.0 60.2 71.2 51.6 66.4 79.6 52.8 68.6 82.0 56.8 76.0 89.4kW 7.66 7.34 7.00 7.82 7.50 7.18 7.86 7.54 7.22 7.98 7.68 7.40

95TC 93.8 85.2 76.6 97.0 88.4 80.0 97.6 89.0 81.2 99.4 91.2 85.2SHC 46.4 58.2 68.8 50.2 64.6 77.2 51.4 66.8 79.0 55.6 74.4 85.2kW 8.18 7.84 7.48 8.36 8.00 7.64 8.40 8.04 7.70 8.50 8.16 7.92

105TC 88.4 79.8 70.8 91.0 82.8 74.6 91.6 83.4 76.0 93.8 85.4 80.6SHC 44.6 56.2 66.0 48.2 62.6 74.2 49.4 64.8 75.6 54.2 72.4 80.6kW 8.68 8.30 7.98 8.80 8.46 8.14 8.86 8.50 8.20 8.98 8.64 8.42

115TC 82.8 73.8 66.0 85.2 76.8 69.6 85.6 77.4 71.0 87.6 79.4 76.0SHC 42.6 53.8 63.2 46.4 60.4 69.6 47.8 62.6 71.0 52.8 70.4 75.8kW 9.16 8.78 8.42 9.30 8.92 8.64 9.34 8.96 8.72 9.48 9.10 8.94

50TFF009 (81 / 2 TONS)


(Edb)


2550/0.08 3000/0.10 3400/0.11 4250/0.135


72 67 62 72 67 62 72 67 62 72 67 62

75TC 1 16 .6 1 08 .4 9 9.0 1 19 .2 1 11 .3 1 01 .8 1 20 .1 1 12 .8 1 03 .6 1 22 .3 1 14 .8 1 06 .3SHC 71.9 61.9 75.9 75.2 65.1 81.4 80.5 68.0 85.6 32.7 73.9 94.4kW 7.77 7.57 7.38 7.86 10.68 7.44 7.89 6.72 7.51 7.97 7.80 7.60

85TC 1 13 .3 1 04 .2 9 4. 0 11 5. 7 10 6. 9 9 7.0 11 7. 2 10 8.7 9 8. 8 12 0. 1 11 1. 0 10 1. 8SHC 54.0 67.7 8 0.4 56.3 72.5 87.1 58.2 76.4 92.5 62.9 84.2 101.0kW 8.46 8.22 7.96 5.54 8.31 8.04 8.60 8.38 8.12 8.72 8.48 8.23

95TC 1 09 .1 9 9. 3 8 7. 3 11 1. 2 10 2. 0 9 1. 4 11 2. 5 10 3.6 9 3. 7 11 5. 3 10 5. 8 10 7. 4SHC 52.6 65.9 77.4 55.0 70.9 84.9 57.1 75.1 90.3 62.2 83.2 97.3kW 8.90 8.97 8.68 8.99 9.06 8.79 9.06 9.12 8.86 4.76 9.24 9.00

105TC 103.3 94.0 81.4 105.9 96.3 84.6 107.4 97.7 87.9 109.4 99.9 92.8SHC 50.5 54.0 74.5 53.5 69.1 81.4 55.8 73.1 86.6 60.4 81.4 92.8kW 9.74 9.43 9.08 9.85 9.54 9.21 9.92 9.60 9.29 10.03 9.72 9.48

115TC 97.7 87.9 75.9 99.9 90.4 78.8 101.3 91.8 82.4 102.9 93.8 88.3SHC 48.7 61.7 71.9 51.8 66.9 78.1 54.0 71.2 82.3 58.5 79.4 88.2kW 1 0. 33 9 .9 7 9 .6 1 10 .46 10 .10 9 .75 10 .54 10 .18 9 .8 8 1 0. 61 1 0. 30 1 0. 10

50TFF012 (10 TONS)


(Edb)


3000/0.095 4000/0.125 5000/0.15


72 67 62 72 67 62 72 67 62

75TC 135.8 124.8 112.0 142.4 130.6 119.8 146.5 134.2 123.7SHC 66.8 82.6 97.4 73.2 93.4 112.7 79.7 104.4 123.1

kW 9.76 9.41 9.10 10.00 9.61 9.27 10.17 9.75 9.41

85TC 130.0 119.6 104.0 136.0 125.0 114.5 140.0 127.9 118.8SHC 64.3 80.5 93.8 71.1 91.7 110.2 77.5 101.8 118.7kW 10.41 10.07 9.74 10.67 10.28 9.94 10.84 10.41 10.09

95TC 124.1 113.7 96.7 129.5 118.9 106.9 132.8 122.0 114.1SHC 62.2 78.4 90.0 69.1 89.8 105.9 74.9 100.1 114.0kW 11.13 10.78 10.40 11.38 10.99 10.63 11.52 11.14 10.83

105TC 118.1 104.6 87.9 122.7 111.8 98.5 126.0 115.1 108.0SHC 60.4 74.9 85.2 66.9 87.7 98.5 73.1 98.3 108.0kW 11.93 11.52 11.10 12.13 11.74 11.41 12.27 11.89 11.65

115TC 115.0 98.0 84.2 120.0 103.8 93.4 122.6 109.8 102.8SHC 59.4 72.4 83.4 66.4 84.8 93.4 72.8 96.6 102.8kW 12.26 11.82 11.40 12.48 12.06 11.78 12.60 12.20 12.00

50TFF014 (121 / 2 TONS)

Temp (FAir EnteringCondenser

(Edb)


3750/0.08 4500/0.09 5000/0.10 6250/0.12


72 67 62 72 67 62 72 67 62 72 67 62

75

TC 1 75 .6 1 62 .2 1 49 .2 1 81 .0 1 67 .5 1 54 .2 1 82 .9 1 70 .2 1 56 .4 1 87 .2 1 74 .7 1 61 .8

SHC 8 5. 7 1 07 .3 1 28 .0 91. 4 1 16. 2 140 .3 9 4. 2 12 2. 2 1 46. 5 10 2. 1 13 5. 3 1 60 .7kW 1 1.16 1 0.85 1 0.57 1 1.32 1 1.00 1 0.69 1 1.37 1 1.07 1 0.73 1 1.49 11 .1 9 1 0.87

85TC 1 69 .3 1 55 .7 1 40 .6 1 74 .2 1 60 .7 1 47 .0 1 76 .9 1 63 .0 1 49 .7 1 81 .5 1 67 .3 1 55 .8SHC 8 3. 9 1 04 .8 1 24 .0 89. 6 1 13. 9 137 .0 9 2. 7 11 9. 7 1 43. 6 10 0. 9 13 3. 4 1 55 .6kW 1 2.15 1 1.78 1 1.42 1 2.31 1 1.94 1 1.58 1 2.39 1 2.01 1 1.63 1 2.53 12 .1 4 1 1.82

95TC 1 61 .9 1 48 .9 1 32 .0 1 66 .8 1 53 .5 1 39 .1 1 69 .5 1 55 .7 1 42 .8 1 73 .2 1 59 .5 1 49 .6SHC 8 1. 4 1 02 .0 1 19 .8 87. 0 1 11. 1 133 .2 9 0. 7 11 7. 3 1 40. 2 9 8. 3 13 0. 8 14 9.6kW 1 3.12 1 2.72 1 2.28 1 3.30 1 2.89 1 2.46 1 3.40 1 2.97 1 2.56 1 3.54 1 3.11 1 2.78

105TC 1 54 .9 1 41 .3 1 23 .0 1 58 .8 1 45 .4 1 30 .2 1 60 .9 1 47 .6 1 35 .0 1 65 .3 1 51 .2 1 43 .2SHC 7 9. 0 9 9. 2 1 15 .5 84. 5 1 08. 2 128 .1 8 7. 8 11 4. 3 1 34. 9 9 6. 6 12 7. 8 1 43 .1kW 1 4.16 1 3.66 1 3.17 1 4.31 1 3.82 1 3.35 1 4.38 1 3.91 1 3.48 1 4.58 14 .0 7 1 3.77

115TC 1 46 .2 1 32 .2 1 13 .1 1 50 .5 1 37 .0 1 22 .4 1 52 .3 1 39 .4 1 27 .8 1 55 .2 1 42 .7 1 36 .0SHC 7 6. 1 9 5. 7 1 10 .3 81. 7 1 05. 2 122 .3 8 5. 0 11 1. 6 1 27. 7 9 2. 9 12 5. 0 1 35 .8kW 1 5.09 1 4.57 1 4.07 1 5.30 1 4.76 1 4.25 1 5.37 1 4.87 1 4.43 1 5.49 15 .0 2 1 4.73

Standard Ratings

LEGEND

NOTES:1. Direct interpolation is permissible. Do not extrapolate.2. The following formulas may be used:

tlwb = Wet-bulb temperature corresponding to enthalpy of air leavingevaporator coil (hlwb )

Where: hewb = En

WEATHERMAKER® 50TFF004-014, 50TJ016-028 WEATHERMASTER® 50HJ004-028 Single-Package Rooftop Units...

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Transcript of WEATHERMAKER® 50TFF004-014, 50TJ016-028 WEATHERMASTER® 50HJ004-028 Single-Package Rooftop Units...