WEATHEREXPERT - 48N
WEATHEREXPERT - 48N-1
WEATHEREXPERT - 48N-2

Carrier Weatherexpert – 48N Commercial Rooftop Units

  • 48N2 – Vert Supply/Return CV/SAV
  • 48N3 – Vert Supply/Return VAV
  • 48N4 – Horz Supply/Return CV/SAV
  • 48N5 – Horz Supply/Return VAV
  • 48N6 – Vert Supply/Horz Return CV/SAV
  • 48N7 – Vert Supply/Horz Return VAV
  • 48N8 – Horz Supply/Vert Return CV/SAV
  • 48N9 – Horz Supply/Vert Return VAV
    Carrier N Series rooftop units are pre-wired and factory-tested in both cooling and heating modes. All 48N models feature a double wall foam panel cabinet design with hinged man-sized access panels.
    Units are available in constant volume (CV), staged air volume (SAV), or variable air volume (VAV) applications with a wide variety of gas heating options. Units come with the ComfortLink™ DDC (direct digital control) communicating control system and hermetic scroll compressors on dual independent refrigeration circuits controlled via Electronic Expansion Valves (EXV).
  • 75 to 150 Nominal Tons
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Performance Features

  • High Capacity and High Efficiency models available, meeting or exceeding EER requirements of AHSRAE Standard 90.1
  • Multiple high-efficiency scroll compressors include a crankcase heater and spring isolation, providing up to 8 steps of cooling capacity control with intertwined evaporator coils for full-face active operation at part-load conditions
  • Cooling operating range from 32 to 115F ambient on a standard model, down to -20F with MotorMaster® V control, and upto 125F on high efficiency models
  • Double wall foam panel construction
  • Induced draft gas heating system with the direct spark ignition (DSI) control system measures 81% annual fuel utilization efficiency (AFUE) using the integrated gas controller (IGC)
  • ComfortLink™ control includes: easy to use scrolling marquee display, service diagnostics, run test capabilities, demand limit capability, compressor reverse rotation protection, and BACnet communication option.
  • California Energy Commission Title 24 Compliant

Reliability Features

  • Dual electrically and mechanically independent refrigerant circuits, with coil frost protection, liquid line filter driers, crankcase heaters, and Electronic Expansion Valves (EXV) standard on all models.
  • Compressor protection includes high and low pressure transducers with safety cutouts on compressor
  • Circuit breaker protection for all power components
  • Cabinet made of pre-painted, galvanized steel with baked enamel finish, which meets ASTM B117 salt spray resistance test
  • Direct spark ignition, Alumagard Coated Turbo-tubular heat exchangers, and induced draft combination provide for safety and reliability
  • Reliable Integrated Gas Unit Controller (IGC) provides system evaluation & troubleshooting via on-board LED and two stage gas valves with redundant 100% shutoff
  • Tested in accordance with UL Standard 1995 and listed by ETL and ETL, Canada

Maintenance Features

  • Large hinged service access doors
  • On-board diagnostics include refrigerant pressure sensors
  • Auto component testing simplifies troubleshooting
  • Standard Double wall construction

Installation Features

  • Shipped with R-410A refrigerant charge
  • Single point electrical service entry, through unit bottom or side
  • Lifting lugs

Standard Limited Warranty

  • 3 years parts only on Novation™ condenser coil
Carrier Weatherexpert – 48N Commercial Rooftop Units was last modified: August 3rd, 2023 by HVAC Expert

Carrier Weatherexpert - 48N Commercial Rooftop Units Brochure

Carrier Weatherexpert - 48N Commercial Rooftop Units Manual

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Factory-Installed Options

  • Low or high gas heat options include:
    • Aluminized steel heat exchanger
    • Stainless steel heat exchanger
    • Stainless steel heat exchanger with staged gas discharge air temperature control
    • Stainless steel heat exchanger with modulating gas discharge air temperature control
  • Extended chassis tracks for auxiliary coil
  • 4’ or 8’ blank sections
  • 4-in. pleated filters
  • Bag or cartridge filters with pre-filters
  • Final filters
  • Field Use Filter Section
  • Various airflow measuring station combinations
  • UV-C lamps
  • Barometric relief
  • Modulating integrated economizer damper
  • Modulating power exhaust with VFD and building pressure sensor
  • Return fan with VFD and supply fan tracking
  • High static fan options, supply, exhaust and return
  • Alternate high-capacity evaporator coil
  • Condenser and evaporator options include:
    • All-aluminum Novation condenser and Al/Cu evaporator
    • E-coat all-aluminum Novation condenser and Al/Cu evaporator
  • Hot gas bypass
  • Controls input expansion board
  • Modulating gas heat control
  • Totally enclosed fan cooled (TEFC) or Outdoor Drip Proof (ODP) fan motors
  • Bypass on fan motor VFDs
  • GFI (ground fault interrupter) convenience outlet (powered)
  • Marine lights
  • Non-fused disconnect
  • Agion interior coating
  • Low outdoor sound
  • Low ambient control
  • 65 kA SCCR (460V) or 25 kA SCCR (575V)
  • Digital compressor
  • BACnet communication
  • Replaceable core filter drier and service valves
  • Security grilles or louvers for condenser section
  • Humidi-MiZer™ adaptive dehumidification system

Field-Installed Accessories

  • Flue extension
  • Mixed air and final filter kits
  • CO2 space sensor
  • Outdoor or return humidity sensor (enthalpy)
  • Field use control box
  • Controls input expansion board
  • Navigator™ display
  • Return air CO2 sensor
  • Smoke detector
  • Filter switch
  • Fan status switch
    • T55 Temperature Sensor
    • T56 Temperature Sensor
  • Space temperature sensor with CO2 override
  • Space temperature sensor set point and CO2 override
  • MODBUS Carrier translator
  • LonWorks Carrier translator
  • BACnet Communication module
  • System Pilot™ interface
  • Touch Pilot™ interface
  • 14-in. roof curb
  • Motormaster V control
  • Compressor sound blankets

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People like you shared their purchase and installation experience!

Kenny LeungKenny Leung

Brian once again helped me with my project. Before I have installed a gas fireplace and this time I have installed an LG heat pump with 3 indoor heads. We had an amazing experience with Brian and his team for both projects from quote to installation. Brian is experienced, patient, reliable, and provides great friendly service. He’s also tells very interesting life stories which makes enhances the whole experience. All my future business is going to his company. Thanks again Brian!

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Michelle ZornMichelle Zorn

I had the most fabulous experience with Cozy Comfort Plus! Brian was very responsive for my first outreach all the way through to the completion of my beautiful fireplace! I live in a condo and as such, things are not straightforward when it comes to having work completed. There were a few extra hoops to jump through but Brian and his team were very diligent in ensuring that all the fittings were correct. I was so happy with my experience that I had them replace my furnace and add a smart home thermometer as well! I would highly recommend Brian and his team for their knowledge, skill and excellent customer service!

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Andrew MunnAndrew Munn

Highly recommended. Brian at Cozy Comfort Plus supplied and installed 6 ductless heads on two compressors. The price was very competitive. The installation crew lead by Hamid did a perfect job. They explained the best locations for the equipment and answered all my questions. The work was completed a very short time after signing the contract. The team cleaned up the job site very carefully every night and were very careful indoorA.

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