Heat Pump Units with Puron® (R-410A) Refrigerant

6 to 20 Nominal Tons

WeatherMaker® 50TCQ 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 hinged 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 environmentally sound Puron (R-410A) refrigerant and are factory tested.

Performance Features

• ASHRAE 90.1 compliant
• Single-stage capacity control (sizes 04 to 07)
• Two-stage cooling capacity control (sizes 08 to 24)
• Up to 13.4 SEER, 12.2 IEER, 11.2 EER, HSPF 7.7, and COP 3.4
• 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
• Belt drive evaporator-fan motor and pulley combinations available to meet any application
• Electric drive X13 (5 speed/torque) motor (sizes 04 to 06)
• Two-inch disposable return air filters

Installation Features

• Same footprint as installed Carrier 3-12.5 ton rooftops back to 1989, reducing installation costs and time
• Field convertible from vertical to horizontal airflow for slab mounting (sizes 04-14)
• Provisions for thru-the-bottom power entry capability as standard
• Single point electric and controls connections
• Full perimeter base rail with built-in rigging adapters and fork truck slots
• Dedicated vertical and horizontal airflow models available (sizes 17 to 28 only)

Reliability Features

• Scroll compressors with internal line-break overload protection
• Compressor crankcase heaters (sizes 05 to 24)
• 24-volt control circuit protected with resettable circuit breaker
• Permanently lubricated evaporator-fan motor
• Totally enclosed condenser motors with permanently lubricated bearings
• Loss of charge, freeze protection, and high-pressure switches
• Dependable time/temperature defrost board and logic

• Cabinet
  • Thru-the-base electrical or gas-line connections
  • Hinged access panels
• Coil Options
  • Cu/Cu indoor and/or outdoor coils
  • Pre-coated outdoor coils
  • Premium, E-coated outdoor coils
• Condenser Protection
  • Condenser coil hail guard (louvered design)
• Controls
  • PremierLink DDC communicating controller
  • RTU OPEN multi-protocol controller
  • Smoke detector (supply and/or return air)
• 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$er2 (for DDC controlled RTUs)
  • Ultra-low leak economizer dampers
  • Motorized 2 position outdoor-air damper
  • Manual outdoor-air damper (sizes 17-24)
  • Barometric relief
  • Power exhaust (sizes 17-24)
• Economizer Sensors & IAQ Devices
  • Single dry bulb temperature sensors
  • Single enthalpy sensors
  • CO2 sensor (wall, duct, or unit mounted)
• Indoor Motor & Drive
  • Multiple motor and drive packages
  • Staged Air Volume (SAV) Indoor Fan Speed System (sizes 08-30)
• Power Options
  • Convenience outlet (powered)
  • Convenience outlet (unpowered)
  • Non-fused disconnect

Field-Installed Accessories

• Cabinet
  • Thru-the-base electrical or gas-line connections
• Condenser Protection
  • Condenser coil hail guard (louvered design)
• Controls
  • Thermostats, temperature sensors, and subbases
  • PremierLink DDC communicating controller
  • RTU OPEN multi-protocol controller
  • Smoke detector (supply and/or return air) (sizes 17-24)
  • Time Guard II compressor delay control circuit
  • Filter status switch
  • Fan status switch
• 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$er2 (for DDC controlled RTUs)
  • Ultra-low leak economizer dampers
  • Motorized 2 position outdoor-air damper
  • Manual outdoor-air damper
  • Barometric relief
  • Power exhaust
• Economizer Sensors & IAQ Devices
  • Single dry bulb temperature sensors
  • Differential dry bulb temperature sensors
  • Single enthalpy sensors
  • Differential enthalpy sensors
  • CO2 sensor (wall, duct, or unit mounted)
• Electric Heat
  • Multiple Electric Resistance Heater KW Sizes
  • Single Point kit
• Low Ambient Control
  • Winter start kit
  • Motormaster head pressure controller
• Roof Curbs
  • Roof curb 14'' (356mm)
  • Roof curb 24'' (610mm)