WeatherMaster® Single-Packaged Rooftop Units 50P Gas Heating : Electric Cooling Units with Puron® (R-410A) Refrigerant 30 to 100 Nominal Tons

Gas Heating / Electric Cooling Units with Puron® (R-410A) Refrigerant

30 to 100 Nominal Tons

50P2 – Vertical CV/SAV
50P3 – Vertical VAV
50P4 – Horizontal CV/SAV
50P5 – 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 performance of up to 4 in. external static pressure (ESP) and 6 in. ESP with optional airfoil supply fans.

Units are available in constant volume (CV), staged air volume (SAV), or variable air volume (VAV) applications, with electric or hydronic heating options. Units come with the ComfortLink™ DDC (direct digital control) control system, scroll compressors on independent thermostatic expansion valve (TXV) controlled refrigeration circuits.

 

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
• Reliable Integrated Gas Unit Controller (IGC) provides system evaluation & troubleshooting via on-board LED and two stage gas valves with redundant 100% shutoff

Maintenance Features

• Large hinged service access doors
• On-board 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