50KCQ WeatherMaker® Single-Package Rooftop Standard Efficiency Heat Pump Units – 14 SEER

  • California Prop 65

Single-Package Rooftop
Standard Efficiency Heat Pump Units – 14 SEER

3 to 5 Nominal Tons

WeatherMaker® 50KCQ rooftop units were designed to be easy to install, maintain, and operate, with customer-requested features including a gage port, centralized control center, plug-and-play accessory board, "no-strip screw" collars, and handled access panels. Units are field-convertible to horizontal airflow without special adapter curbs or kits, making it easy for the installer to adjust to unexpected jobsite complications. Units are pre-wired and pre-charged with Puron (R-410A) refrigerant and are factory tested.

Performance Features

  • ASHRAE 90.1 compliant
  • Single-stage cooling capacity control
  • Up to 14.3 SEER, 12.2 EER and 8.2 HSPF
  • Cooling operating range up to 115 °F (46°C) and down to 25°F (-4°C) using winter start kit
  • Innovative non-corrosive composite condensate pan in accordance with ASHRAE 62 Standard, sloping design; side or center drain
  • Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection

Maintenance Features

  • Control terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement
  • Access panels with easy grip handles
  • Innovative, easy starting, no-strip screw feature on unit access panels
  • Direct Drive – ECM indoor fan motor standard with optional belt drive systems available
  • Two-inch disposable return air filters

Installation Features

  • Same footprint as installed Carrier 3-5 ton rooftops back to 1989, reducing installation costs and time
  • Field convertible from vertical to horizontal airflow configuration
  • Provisions for thru-the-bottom power entry capability as standard
  • Single point gas, electric, and controls connections
  • Full perimeter base rail with built-in rigging adapters and fork truck slots

Reliability Features

  • Scroll compressors with internal line-break overload protection
  • Compressor crankcase heaters (sizes 05 to 06 sizes)
  • 24-volt control circuit protected with resettable circuit breaker
  • Permanently lubricated evaporator-fan motor
  • Totally enclosed condenser motors with permanently lubricated bearings
  • Low pressure and high-pressure switch protection
  • Liquid line filter drier as standard

Standard Limited Warranty

  • 5 years parts only electric heater
  • 5 years parts only compressor
  • One year parts only on all other parts
  • Additional extended warranty packages available
Nominal Cooling Ton SizeCooling StagesAHRI Efficiency (SEER) EERDimensions (in) LxWxHAt 47°FAt 17°FUnit Weight (lb)
Heating Capacity (Btuh)HSPFHeating Capacity (Btuh)COP

AHRI = Air-Conditioning, Heating & Refrigeration Institute
ASHRAE = American Society of Heating, Refrigerating and Air Conditioning, Inc.
COP = Coefficient of Performance
EER = Energy Efficiency Ratio
HSPF = Heating Seasonal Performance Factor
SEER = Seasonal Energy Efficiency Ratio

1. Rated and certified under ARI Standard 210/240.
2. Ratings are based on:
» Cooling Standard: 80 F (27 C) db, 67 F (19 C) wb indoor air temp and 95 F (35 C) db outdoor air temp.
» IPLV Standard: 80 F (27 C) db, 67 F (19 C) wb indoor air temp and 80 F (27 C) db outdoor air temp.
3. All 50KCQ units comply with ASHRAE 90.1-2010 Energy Standard for minimum SEER and EER requirements.
4. 50KCQ units comply with US Energy Policy Act (2005). To evaluate code compliance requirements, refer to state and local codes or visit the following website: http://bcap-energy.org

Thru the base electrical or gas line connectionsXX
Hinged access panelsX 
Coil Options

Cu/Cu indoor and/or outdoor coils

Pre-coated outdoor coilsX 
Premium, e-coated outdoor coilsX 
Condenser Protection
Condenser coil hail guard (louvered design)XX
Thermostats, temperature sensors and subbases X
PremierLink DDC communicating controllerXX
RTU Open multi-protocol controllerXX
Smoke detector (supply and/or return air)X 
Time Guard II compressor delay control circuit X
Filter status switch X
Fan status switch X
Economizers & Outdoor Air Dampers

EconoMi$er IV (for electro-mechanical controlled RTUs) 


EconoMi$er X (for electro-mechanical controlled RTUs with CA Title 24 FDD)

EconoMi$er 2 (for DDC controlled RTUs)XX
Ultra-low leak economizer dampersXX
Motorized 2-position outdoor air damperXX
Manual outdoor dir damper X
Barometric reliefXX
Power exhaust X
Economizer Sensors & IAQ Devices
Single dry bulb temperature sensorsXX
Differential dry bulb temperature sensors X
Single enthalpy sensorsXX
Differential enthalpy sensors X
CO2 sensor (wall, duct, or unit mounted)XX
Electric Heat
Multiple electric resistance heater kW sizes X
Single point kit X
Indoor Motor & Drive
Multiple motor and drive packagesX 
Low Ambient Control
Winter start kit X
Motormaster head pressure controller X
Power Options
Convenience outlet (powered)X 
Convenience outlet (unpowered)X 
Non-fused disconnectX 
Roof Curbs
Roof curb 14" (356mm) X
Roof curb 24" (610mm) X