Single-Package High-Efficiency
Electric Cooling Rooftop Units
with Puron® Refrigerant (R-410A)
30 to 100 Nominal Tons

50P2 – Vertical CV
50P3 – Vertical VAV
50P4 – Horizontal CV
50P5 – Horizontal VAV

Carrier P Series rooftop units are pre-wired and factory-tested in both cooling and heating modes. All 50P models feature an industrial grade cabinet with fully hinged access panels. Standard forward-curved supply fans provide superior supply fan performance of up to 4 in. external static pressure (ESP) while optional airfoil supply fans provide fan performance up to 6 in. ESP.

Units are available in dedicated vertical and horizontal supply/return airflow models for constant volume (CV), staged air volume (SAV), or variable air volume (VAV) applications. Units are cooling only or available with a variety of electric or hydronic heating options. Units come with the ComfortLink™ DDC (direct digital control) communicating control system and hermetic scroll compressors on dual independent thermostatic expansion valve (TXV) controlled refrigeration circuits.

See more Carrier Packaged Rooftop Solutions. Carrier PACKAGED ROOFTOP 50P WEATHERMASTER ®.


PerformanceReliabilityMaintenanceInstallationStandard WarrantyFactory-Installed OptionsField-Installed Accessories
  • Puron® non-ozone depleting R-410A refrigerant.
  • Multiple high-efficiency scroll compressors include a crankcase heater and spring isolation.
  • Up to 8 steps of cooling capacity control.
  • Dual independent refrigerant circuits with TXVs.
  • Intertwined evaporator coils for full-face active operation at part-load conditions.
  • Dual sloped, stainless steel condensate pan.
  • Cooling operating range from 32 to 115 F ambient (down to -20 F with accessory Motormaster® V control).
  • 115-volt and 24-volt control circuits.
  • 2-in. disposable return air filters.
  • Standard 2-in. filter tracks are field convertible to accept 4-in. filters.
  • Outside air hoods with permanent filters.
  • Single low speed supply fan.
  • 2-in. deflection isolation springs on supply fan sled.
  • Fixed speed belt-driven blower drive.
  • High-efficiency motors meet Energy Policy Act (EPACT).
  • Variable air volume units include:
    • Adjustable speed drive with true torque control.
    • Soft start and anti-windmilling control.
    • Supply duct static pressure control.
    • Discharge air temperature control.
    • Supply air temperature reset.
  • ComfortLink controls provide:
    • Easy to use scrolling marquee display.
    • Time schedule.
    • Space temperature sensor capability.
    • Service diagnostics, alarms and alarm history.
    • CO2 sensor capability for demand controlled ventilation (DCV).
    • Compressor reverse rotation protection.
    • Short-cycle compressor protection.
    • Self-diagnostic service and start-up run test capability.
    • Carrier Comfort Network® (CCN) communications or stand-alone operation.
    • Remote start/stop capability.
  • Premium efficiency supply fan motors.
  • Rated in accordance with ARI Standard 340/360.
  • Dual electrically and mechanically independent refrigerant circuits
  • Crankcase heaters
  • High and low pressure transducers with safety cutouts on compressor
  • Coil frost protection
  • Liquid line filter driers
  • 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
  • Tested in accordance with UL Standard 1995
  • Listed by ETL and ETL, Canada
  • Large hinged service access doors
  • On-board diagnostics include refrigerant pressure sensors
  • Shipped with R-410A refrigerant charge
  • Single point electrical service entry, through unit bottom or side
  • Lifting lugs
  • Factory-installed pivoting outside air hoods
  • 3-years parts only on Novation™ condenser coil.
  • 5-years parts only, non pro-rated, on heat exchanger.
  • One year parts only on all other parts.
  • Electric heat options (vertical configuration only) include:
    • Low heat.
    • Medium heat.
    • High heat.
  • Hot water coil.
  • Discharge plenum.
  • Extended chassis with tracks for auxiliary coil.
  • Double wall construction.
  • 2-in. pleated filters.
  • Bag or cartridge filters (sizes 030-070 only).
  • Outdoor air cfm station.
  • Manual outside air self-closing damper.
  • Modulating 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).
  • 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.
  • High capacity power exhaust with VFD (sizes 075-100 only).
  • Return fan with VFD (sizes 075-100 only).
  • Bypass on indoor fan motor VFD.
  • GFI (ground fault interrupter) convenience outlet (powered).
  • Power terminal block.
  • Non-fused disconnect.
  • Airfoil supply fan (sizes 075-105 only).
  • Low outdoor sound.
  • Low ambient control.
  • 65 kA SCCR.
  • Digital compressor.
  • BACnet communication.
  • Replaceable core filter drier.
  • Security grille (sizes 070-100 only).
  • Humidi-MiZer™ adaptive dehumidification system.
  • Communicating valve actuator (for units with hot water coil option).
  • 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.
  • Thermostat options include:
    • T55.
    • T56.
  • Space temperature sensor with CO2 override.
  • Space temperature sensor set point and CO2 override.
  • MODBUS Carrier translator.
  • LonWorks Carrier translator.
  • System Pilot™ interface.
  • Touch Pilot™ interface.
  • 14-in. roof curb.
  • Motormaster V control.
  • Compressor sound blanket.


Product Data

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