Product Data Dedicated Outdoor Air Units 3 to 55 Nominal Tons 62X 3-55 Ton Dedicated Outdoor Air Unit Air Cooled Cooling/Dehumidification Optional Heat, Energy Recovery © 2021 Carrier Form 62X-6PD Features/Benefits Carrier’s 62X commercial meet the application supply air dew The cabinet features a double wall packaged, dedicated, point based on the application airflow design with a galvanized inner liner. and geographic location. All 62X units The double wall design is insulated with outdoor air unit offers feature a lead circuit variable capacity 2-in. R-13 closed-cell foam insulation, efficiency, application scroll compressor (digital on size 03-18 which adds rigidity to the structure and flexibility, quality, reliability ton, variable speed on size 20-55 ton) resists moisture intrusion. and easy maintenance. for capacity modulation at part load. Quality and reliability Cooling and dehumidification capacity Carrier’s 62X Series commercial dedi- All units are run tested prior to leaving enhancing options, such as liquid sub- the factory to help ensure proper cated outdoor air units offer: cooling reheat, high efficiency con- • Capacities up to 55 nominal tons operation and enhance life expectancy denser, and energy recovery wheels are of key components. Components • Vertical or horizontal supply config- available to improve application capac- undergo numerous checks and urations ity or efficiency and may allow for inspections throughout the manufac- • Puron® environmentally balanced downsizing the compressor capacity. turing process to eliminate compo- refrigerant (R-410A) as standard The 62X unit is available in a wide nents that do not meet Carrier’s high • Double wall construction with 2-in. range of heat options, including no quality standards. R-13 closed cell insulation heat, up to 1200 MBH of gas heat, up Reliable, variable and fixed capacity scroll • Optional AHRI (Air-Conditioning, to 120 kW of electric heat, or a high compressors are mounted on rubber iso- Heating, and Refrigeration Insti- capacity hot water coil. Modulating lation mounts for quiet operation. tute) listed energy recovery wheel heat control is available to provide pre- cise supply air temperature control. Mechanically and electrically indepen- • Multiple heating options dent dual refrigeration circuits (size 10 • Multiple fan and motor options, Units are available in vertical or hori- and larger) provide redundancy in the including ODP, TEFC, and ECM zontal supply to meet a variety of event that one circuit should require ser- installations. Vertical supply units can vice. All refrigerant circuits use a thermo- motors, and direct drive airfoil or be curb mounted (accessory curbs avail- backward incline fans. static expansion valve (TXV) to ensure able) or structure mounted. Horizontal proper refrigerant metering throughout • Direct digital control (DDC) control supply units can be curb, structure, or with available touchscreen interface the unit’s broad operating envelope. The slab mounted. refrigeration circuits are protected by fil- (via accessory) The 62X is also available with a vertical ter driers specifically designed for Puron® • Multiple reheat options, including exhaust air intake that can be used for refrigerant (R-410A). modulating HGRH and liquid sub- barometric relief, power exhaust, or Standard warranty coverage provides a cooling reheat with modulating energy recovery with power exhaust to limited one-year parts warranty and a HGRH meet project requirements. 5-year limited warranty on the stainless • Stand alone or networked operation All 62X units feature direct drive sup- steel gas heat exchanger. • Lead circuit variable capacity ply fans for efficient operation. Multiple sizes of airfoil and backward Easy to install, maintain and compressor service • 100% outdoor air operation incline fans are available to meet appli- cation airflow and static requirements. Maintaining and servicing a dedicated High efficiency A wide variety of supply fan motor outdoor air unit is critical in maximizing The Carrier 62X dedicated outdoor air sizes are available to meet fan power the life expectancy and efficient system (DOAS) uses highly efficient, requirements. operation of the unit. The Carrier unit scroll compressors that have been opti- Durable construction has been designed for easy access with mally designed for use with Puron® simple maintenance procedures. refrigerant (R-410A). Cabinets are constructed of heavy gage galvanized steel with a pre-painted Hinged access panels provide easy Operating efficiency of the unit may be exterior finish to protect the cabinet access to controls, fans, coils and fil- increased by adding the optional high ters. The optional factory-installed and preserve the appearance through a energy recovery wheel shall slide out of efficiency condenser, liquid subcooling long operating life. reheat, or energy recovery system. the cabinet for service. The energy recovery system uses an AHRI-listed energy recovery wheel to transfer sensible and latent heat Table of contents between the incoming air and the exhaust air, reducing energy consump- Page tion and improving indoor conditions. Features/Benefits. 2 Flexibility to suit many Model Number Nomenclature . 4 applications DOAS Application Guide . 8 The Carrier 62X dedicated outdoor air Ratings and Capacities . 14 unit is designed to provide conditioned Physical Data . 17 ventilation air in a wide range of geo- Options and Accessories . 27 graphic locations. Dimensions . 28 Cooling and dehumidification capaci- Performance Data . 34 ties from 3-55 tons are available to Controls . 35 Guide Specifications . 40 2 Features/Benefits (cont) A dedicated vertical or horizontal Induced-draft designs operate the heat Harsh environment coating design does not require conversion exchanger under negative pressure, Carrier dedicated outdoor air units may time during the unit installation. The helping to prevent leakage of flue gases be equipped with optional harsh curb power connection minimizes roof into the supply airstream. The gas heat environment protection through a penetrations. system uses a direct-spark ignition and factory-applied coating. This coating, Power connections are in a protected is protected by numerous safety circuits. consisting of aluminum-impregnated area, away from harsh environmental The 62X gas heaters are available from polyurethane and rated for a 10,000 conditions. All units feature heavy gage 75 up to 1200 MBtuh. The units also hour salt spray, will cover all exposed formed galvanized steel base rails with have XL cabinets available. The larger areas of the unit, including all of the rigging openings to simplify handling heat capacities on these cabinets facili- coils (evaporator, condenser, hot gas and lifting at the job site. tate applications that require a higher reheat, and liquid subcooling), com- Indoor air quality temperature rise. Standard cabinets pressors, interior and exterior panels, with vertical supply heaters can achieve piping, and gas heaters. The Carrier 62X is standard with a a 100°F maximum temperature rise and 2 in. filter track with MERV 8 filter. a 80°F maximum temperature rise on Reheat options Units selected with a 4 in. MERV 8, horizontal supply configurations. How- Carrier dedicated outdoor air units may 11, or 14 filters include a 4 in. filter ever, XL cabinets can achieve a maxi- be equipped with multiple reheat track (see Dimensions section). mum temperature rise of 160°F for options. Reheat options include hot The condensate drain pan is double vertical supply and 130°F for horizontal gas reheat and liquid subcooling. Hot sloped to eliminate standing water per supply configurations. gas reheat can have modulating control to help rewarm dehumidified air to ASHRAE (American Society of Heat- Direct Digital Control (DDC) ing, Refrigerating, and Air-Condition- neutral temperatures to help offset ing Engineers) Standard 62-1089R. The factory-installed and programmed space relative humidity. The hot gas The drain pan is fabricated of heavy DDC controller provides complete sys- from the compressor is directed into a gage stainless steel to help resist corro- tem control of unit operation. The con- full faced Al/Cu coil after the evapora- sion and is insulated on the bottom troller monitors all system sensors and tor to help lower the relative humidity with closed cell insulation. makes operating decisions based upon of the supply air. Liquid subcooling is the user’s configuration inputs. lso a reheat option, but instead of The double wall design of the unit with a Local access to the controller may be using hot gas from the compressor, it galvanized interior liners allows easy uses warm liquid refrigerant after it cleaning of the interior surfaces. accomplished via the accessory Equip- ment Touch™ touchscreen display. The passes through the condenser and Energy recovery Equipment Touch is a wall-mounted sends it to a full faced Al/Cu coil after The Carrier dedicated outdoor air unit user interface with a 4.3-in. touch- the evaporator for additional subcool- may be optionally equipped with an screen display. Interface can also be ing. In this process, while helping energy recovery (enthalpy) wheel. The accomplished through the Android reheat the supply air, liquid subcooling enthalpy wheel meets the requirements Equipment App on the Google Play also reduces the temperature of the of AHRI standard 1060 and is certified store. refrigerant entering the evaporator coil by AHRI. This energy recovery wheel which can increase overall