Carrier Weathermaster – 48P Commercial Rooftop Units

  • 48P2 – Vertical CV/SAV
  • 48P3 – Vertical VAV
  • 48P4 – Horizontal CV/SAV
  • 48P5 – Horizontal VAV
    Carrier P Series rooftop units are pre-wired and factory-tested in both cooling and heating modes. All models feature an industrial grade cabinet with fully hinged access panels. Forward-curved supply fans provide the performance of up to 4 in. external static pressure (ESP) and 6 in. ESP with optional airfoil supply fans.
    Units are available in the 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) control system, scroll compressors on independent thermostatic expansion valve (TXV) controlled refrigeration circuits.
  • 30 to 100 Nominal Tons

Performance Features

  • Multiple high-efficiency scroll compressors include a crankcase heater and vibration isolation
  • 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 115 F ambient (down to -20 F with accessory Motormaster® V control)
  • 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.
  • Tested in accordance with UL Standard 1995 and listed by ETL and ETL, Canada
  • Meet or exceed the EER requirements of ASHRAE Standard 90.1, rated in accordance with ARI Standard 340/360
  • California Energy Commission Title 24 Compliant

Reliability Features

  • Dual electrically and mechanically independent refrigerant circuits, with coil frost protection, liquid line filter driers, and crankcase
  • heaters standard on all models
  • Compressor protection includes high and low-pressure transducers with safety cutouts
  • 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
  • Condenser-fan motors are totally enclosed with internal protection
  • 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 onboard LED and two-stage gas
  • valves with redundant 100% shutoff

Maintenance Features

  • Large hinged service access doors
  • Onboard diagnostics include refrigerant pressure sensors
  • Double wall design available

Installation Features

  • Shipped with R-410A refrigerant charge
  • Single point electrical service entry, through unit bottom or side
  • Lifting Lugs
  • Factory-installed pivoting outside air hoods

Standard Limited Warranty

  • 3 years parts only on Novation™ condenser coil
  • 5 years parts only, non-pro-rated, on the heat exchanger
  • One year parts only on all other parts
Carrier Weathermaster – 48P Commercial Rooftop Units was last modified: August 3rd, 2023 by HVAC Expert

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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 for an auxiliary coil
  • Double wall construction
  • 2-in. pleated filters with 4-in. field convertible filter rack
  • Bag or cartridge filters (sizes 030-070 only)
  • Outdoor air CFM station
  • Manual outside air self-closing damper
  • Modulating integrated economizer damper
  • Modulating integrated ultra-low leak economizer damper
  • Barometric relief
  • Non-modulating power exhaust (CV units only)
  • Modulating power exhaust with building pressure sensor
  • Alternate high-capacity evaporator coil (all sizes except 035)
  • High capacity power exhaust with VFD (sizes 075-100 only)
  • Return fan with VFD (sizes 075-100 only)
  • 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
  • Bypass on indoor fan motor VFD
  • GFI (ground fault interrupter) convenience outlet (powered)
  • Power terminal block
  • Non-fused disconnect
  • Airfoil supply fan (sizes 075-100 only)
  • Low outdoor sound
  • Low ambient control
  • 65 kA SCCR (460V) or 25 kA SCCR (575V)
  • Digital compressor
  • BACnet communication
  • Replaceable core filter drier
  • Security grille (sizes 070-100 only)
  • Humidi-MiZer™ adaptive dehumidification system

Field-Installed Accessories

  • Liquid propane (LP) conversion kit (sizes 030-070 only)
  • 2-in. and 4-in. filter kits
  • CO2 space sensor
  • Outdoor or return humidity sensor (enthalpy)
  • Condenser coil hail guard assembly
  • 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
  • BACnet Communication module
  • MODBUS Carrier translator
  • LonWorks Carrier translator
  • System Pilot™ interface
  • Touch Pilot™ interface
  • 14-in. roof curb
  • Motormaster V control
  • Compressor sound blankets

People like you shared their purchase and installation experience!

Judy TrogadisJudy Trogadis

The 30+ year old gas fireplace in our condo was just replaced with an electric one. Not a simple job, however, Hamid from Cozy Comfort, was very resilient and knowledgable in figuring out how to do it efficiently. He answered our questions and made sure we were satisfied before he left. I would also be very happy to recommend Brian Kar who first came to talk to us about the various options.

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Jeffrey HoffmanJeffrey Hoffman

From installation to maintenance, Cozy Comfort Plus Inc. provided us with prompt, quality service. It took under a day to install our Mitsubishi split-type air conditioner in May, 2021. This week, they attended to cleaning our unit’s filters in less than a day’s notice. The technician explained how to remove, clean and reinstall the filters ourselves which will save us money down the road. I highly recommend Cozy Comfort without reservation.

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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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