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Features/Benefits (cont)All units have Carrier’s exclusiveAcutrol (004-014) or TXV (thermostatic expansion valve) metering device(015-028) which precisely controls refrigerant flow, preventingslugging and flood-back, while maintaining 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 whichmixes with the conditioned air, improving indoor-air quality and often reducing energy consumption.During a first stage call for cooling, ifthe outdoor-air temperature is belowthe economizer control changeoverset point, the mixed-air sensor modulates the economizer outdoor-air damper open to take advantage of free cooling provided by the outside air. Whensecond-stage cooling is called for, thecompressor is energized inaddition to the economizer. If theoutdoor-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 temperature (outdoor vs return), outdoor airenthalpy changeover, or more precisedifferential enthalpy control.Units can be equipped with differenteconomizer options to meet specificcontrols applications. The factoryinstalled or field-installed EconoMi er IVand EconoMi er2 are available. TheEconoMi er IV is used with the standard rooftop unit controls and includesan industry standard, stand-alone,solid-state controller. The control can beused with a CO2 sensor for DCV (demand control ventilation) operation. Fordirect digital control (DDC) applications,the EconoMi er2 can be operated usingPremierLink controls or a third partycontroller. The EconoMi er2 includes4 to 20 mA actuator capability for demand control ventilation applications.All economizers incorporate a parallel blade, gear-driven damper systemfor efficient air mixing and reliable control. In addition, the standard damperactuator includes a spring return toprovide reliable closure on power loss.The economizers for sizes 004-014 are4equipped with up to 100% barometricrelief capability for high outdoor airflow operations. Economizers for unitsizes 004-014 are available, factoryinstalled, for vertical return only. Economizers for unit sizes 015-028 arecompatible for vertical or horizontal return. An optional field-installed barometric relief package is available forsize 015-028 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, yearround ventilation is enhanced by an optional manual outdoor-air damper. On004-014 units, a 25% or 50% manualdamper is available as a field-installedaccessory. Unit sizes 015-028 areequipped with a manual 25% damper.Service options (48HJ004017 and 48TM004-028 unitsonly)Servicing a rooftop unit has never beeneasier with the factory-installed serviceoptions for these rooftop units. Theseoptions include the following: Hinged access panels are providedfor 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 eliminating the concern of a dropped orwind-blown panel puncturing delicate roof materials. The 4 extendedaccess panels are also equipped with‘‘tie back’’ retaining devices to holdthe door in the open position whileservicing 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 outlet to a field-supplied and properlyfused branch circuit power supply. Slide out “motor-drive-blower”reduces service time (only on48HJ017).905 An integral non-fused disconnectswitch within the rooftop unitreduces installation time, labor andmaterial costs. Safety is assured byan interlock which prevents accessto the control box unless the switchis in the OFF position. In addition,the externally mounted handleincorporates power lockout capability to further protect servicepersonnel.Carrier PremierLink controlsadd reliability, efficiency, andsimplification (48HJ004-017and 48TM004-028 units 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: unitnumber, zone temperature, zone setpoint, zone humidity set point, discharge air temperatures, fan status,stages of heating, stages of cooling,damper position, outdoor-air temperature, outdoor humidity level, filterstatus, fire shutdown status, IAQ (indoor air quality) set point, enthalpy status, differential enthalpy status, heat/cool lockout, cfm set point, preoccupancy purge, economizer controlsand early morning warm-up.This controller has a 38.4K baudcommunications capability and is compatible with ComfortLink controls,CCN (Carrier Comfort Network ) andComfortVIEW software. The Scrolling Marquee and Navigator displayare optional tools that can be used forprogramming and monitoring the unitfor optimal performance. The additionof the Carrier CO2 sensor in the conditioned space provides ASHRAE(American Society of Heating, Refrigeration, and Air Conditioning Engineers) 62-99 compliance and DemandControl Ventilation.The PremierLink peer-to-peer, Internet ready communicating control is designed specifically for Constant Volume(CV) and Variable Volume and Temperature (VVT ) applications. This comprehensive controls system allows allCarrier 3 to 25 ton rooftops with a3-wire communications bus to be daisychained together on a roof to create afully functional HVAC (heating,

ventilation, and air conditioning) automation system.neutral air for maximum dehumidification operation.Indoor-air quality (IAQ) beginswith Carrier rooftopsExclusive MoistureMi er dehumidification package(48HJ015,017 and 48TM016028 only)Sloped 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 capability of standard units, maximize buildinghumidity control.Optional proportional reacting CO2sensor is available with the EconoMi er IV outdoor air damper option/accessory to aid the IAQ benefits.Humidi-MiZer adaptivedehumidification system(48HJ004-014)Carrier’s Humidi-MiZer adaptive dehumidification system is an all-inclusivefactory-installed option that can beordered with any Weathermaster 48HJ004-014 rooftop unit to meetthe demand for providing a flexible andhigh performing solution to accommodate all of these design related issues.This system expands the envelope ofoperation of Carrier’s Weathermaster48HJ004-014 rooftop products toprovide unprecedented flexibility tomeet year-round comfort conditions.The Humidi-MiZer adaptive dehumidification system has the industry’s onlydual dehumidification mode setting.The Humidi-MiZer system includes twonew modes of operation. The Weathermaster 48HJ004-014 rooftop coupled with the Humidi-MiZer system iscapable of operating in normal designcooling mode, subcooling mode, andhot gas reheat mode. Normal DesignCooling mode is when the unit willoperate under its normal sequence ofoperation by cycling compressors tomaintain comfort conditions. Subcooling mode will operate to satisfy partload type conditions when the spacerequires combined sensible and ahigher proportion of latent load control. Hot Gas Reheat mode will operate when outdoor temperaturesdiminish and the need for latent capacity is required for sole humidity control.Hot Gas Reheat mode will provideThe MoistureMi er dehumidificationpackage is a result of recent advancesby Carrier in controlling comfort levels.This factory-installed option significantly improves the dehumidification capability of the rooftop unit and helps control humidity levels in the building.This option provides increased dehumidification by cooling the hot liquid refrigerant leaving the condenser coil. TheMoistureMi er package consists of asubcooling coil located on the leaving-airside of the evaporator coil. The locationof this coil in the indoor airstream enhances the latent capacity of the48HJ015 and 017 and 48TM016-028units by as much as 40%. Many buildings suffer from humidity damage orpoor indoor air quality due to humidconditions. The improved latent capacityprovided by the MoistureMi er optionreduces the building’s humidity, eliminating potential property damage and making the space more comfortable.The MoistureMi er option is theideal IAQ option for hot and humidregions. The operation of theMoistureMi er package can be controlled by a field-installed, wall mounted humidistat or Thermidistat device.The circuit activates only when needed(using the accessory humidistat) as opposed to some dehumidification systems 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 (sizes 004-014 only)Carrier’s factory-installed optionalCOBRA units recover energy from thebuilding exhaust air and pre-conditionventilation air for the rooftop unit during winter and summer operation.These units are designed to satisfy thehigher ventilation requirements andother building codes while minimizingenergy costs.Factory installation of the 62AQsection provides the benefit of reducedfield-installation time, single pointpower connections, and the assuranceof a factory test for the completeCOBRA unit. The COBRA energyrecovery section requires less maintenance than other energy recoverysystems and can be serviced by anyqualified refrigeration technician.The COBRA energy recovery unitsutilize Carrier’s high-efficiency48HJ004-014 rooftop units and provide 3 to 121/2 tons of cooling capacity 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 cigarette 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 systemsthat 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 today’s tighter building constructionwhile improving indoor-air quality.5

Model number nomenclature48TM004-014Example:48 TMD006PMF6--HA48 – Packaged RooftopElectric Cooling/Natural Gas HeatFactory-Installed Options†Voltage1 – 575-3-603 – 208/230-1-605 – 208/230-3-606 – 460-3-60TM – Constant Volume, Standard EfficiencyHeat Options:49 StatesD – Low HeatE – Medium HeatF – High HeatCalifornia CompliantL – Low NOx Low HeatM – Low NOx Medium HeatN – Low NOx High HeatCapacity Nominal-Tons004 – 3 Tons005 – 4 Tons006 – 5 Tons007 – 6 Tons008 – 7-1/2 Tons009 – 8-1/2 Tons012 – 10 Tons014 – 12-1/2 TonsCoil Protection Options (fin/tube)– – Al/Cu Cond & Evap (Standard Unit)B – 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 EvapIndoor Motor Options– – Standard Motor & DriveA – Alternate MotorM – High-Static Indoor MotorControls and Sensors– – NoneN – Novar ETM3051 Control*P – PremierLink DDC ControlQuality erDirect Digital ControlsFactory-Installed Option*Contact factory for availability and application information.†Refer to 48TM Price Pages, Quote Builder, or contact your local Carrier representative for FIOP code table.6Certified to ISO 9001:2000

ARI* capacity ratingsARI* CAPACITY RATINGS — 1/2NET COOLINGCAPACITY 10.19.5SOUND AN/A10.510.411.09.72. ARI ratings are net values, reflecting the effects of circulating fan heat.3. Ratings are based on:LEGENDDry BulbEnergy Efficiency RatioIntegrated Part-Load ValuesSeasonal Energy Efficiency RatioWet Bulb*Air Conditioning and Refrigeration Institute.†The SEER values shown for sizes 004, 005, and 006 are for units with theoptional belt drive motors; SEER rating for these units with the standard directdrive motor is 9.7.**ARI does not require EER ratings for units with capacity below 65,000 Btuh.For these units, the EER rating at ARI standard conditions is provided for information only.††The IPLV applies only to two-stage cooling units.NOTES:1. Rated in accordance with ARI Standards 210-94 or 360-93.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 80 Fdb outdoor entering-air temperature.4. All 48TM004-014 units are in compliance with ASHRAE 90.1 2001 EnergyStandard for minimum SEER and EER requirements. Refer to state andlocal codes or visit the following website: http://solstice.crest.org/efficiency/bcap to determine if compliance with this standard pertains to a given geographical area of the United States.HEATING CAPACITIES AND EFFICIENCIES — 48TM004-014208/230-1-60 — SINGLE-STAGE GAS HEATUNIT48TME004F004D005E005F005D006E006F006INPUT CAPACITY1st Stage2nd 05M005N005L006M006N006INPUT CAPACITY1st Stage2nd �60,000—90,000—120,000—OUTPUT CAPACITY1st Stage2nd �57,000—91,000—118,000—TEMPERATURERISE ( F)25-3555-8525-5535-6550-8025-5535-6550-80MINIMUM HEATINGAIRFLOW (CFM)10041002100413271396100413271314AFUE (%)8080808080808080EFFICIENCYSteady State (%)8080808080808080AFUE (%)8080808080808080EFFICIENCYSteady State (%)8080808080808080AFUE (%)8080808080808080EFFICIENCYSteady State (%)8080808080808080208/230-1-60 — SINGLE-STAGE GAS HEAT — LOW NOxOUTPUT CAPACITY1st Stage2nd 49,000—73,000—98,000—TEMPERATURERISE ( F)20-5030-6020-5030-6040-7020-5030-6040-70MINIMUM HEATINGAIRFLOW (CFM)91011309101130130091011301300208/230/460-3-60 — SINGLE-STAGE GAS HEAT — LOW NOxUNIT48TMM004N004L005M005N005L006M006N006INPUT CAPACITY1st Stage2nd �60,000—90,000—120,000—OUTPUT CAPACITY1st Stage2nd 49,000—73,000—98,000—TEMPERATURERISE ( F)20-5030-6020-5030-6040-7020-5030-6040-70MINIMUM HEATINGAIRFLOW (CFM)91011309101130130091011301300AFUE — Annual Fuel Utilization Efficiency11

ARI* capacity ratings (cont)HEATING CAPACITIES AND EFFICIENCIES — 48TM004-014 (cont)208/230/460/575-3-60 — SINGLE-STAGE GAS PUT CAPACITY1st Stage2nd ��74,000—115,000—125,000—125,000—OUTPUT CAPACITY1st Stage2nd ISE ( IMUM HEATINGAIRFLOW (CFM)122012201320122013201220132018601860AFUE (%)808080808080808080EFFICIENCYSteady State (%)808080808080808080208/230/460/575-3-60 — 2-STAGE GAS 12F012D014E014INPUT CAPACITY1st Stage2nd 0250,000180,000224,000200,000250,000AFUE — Annual Fuel Utilization Efficiency12OUTPUT CAPACITY1st Stage2nd 0144,000179,200160,000200,000TEMPERATURERISE ( 6540-7035-6540-70MINIMUM HEATINGAIRFLOW 5102650AFUE (%)80808080808080808080808080EFFICIENCYSteady State (%)80808080808080808080808080

ARI* CAPACITY RATINGS — 48TM016-028dbEERIPLVwbUNIT SIZE48TMDNOMINALTONSNET COOLINGCAPACITY 9.7UNIT SIZE48TMFNOMINALTONSNET COOLINGCAPACITY 0.110.010.0LEGENDDry BulbEnergy Efficiency RatioIntegrated Part-Load ValuesWet Bulb*Air Conditioning and Refrigeration Institute.NOTES:1. Rated in accordance with

All units have Carrier's exclusive Acutrol (004-014) or TXV (thermo-static expansion valve) metering device (015-028) which precisely controls re-frigerant flow, preventing slugging and flood-back, while main-taining optimum unit performance. Re-frigerant filter driers are standard. Integrated economizers and outdoor-air dampers