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WEATHERMASTER - 48P
WEATHERMASTER - 48P-1

Carrier Weathermaster – 48P Commercial Rooftop Units

(17 customer reviews)

  • 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
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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 Brochure

Carrier Weathermaster - 48P Commercial Rooftop Units Manual

Carrier Weathermaster - 48P Commercial Rooftop Units Document

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17 reviews for Carrier Weathermaster – 48P Commercial Rooftop Units

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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

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