Electric Cooling with Puron® (R-410A) Refrigerant

3 to 25 Nominal Tons

50HC WeatherMaster^® rooftop unit were designed by customers for customers. With a gauge plug, centralized control center, plug & play accessory board, “no-strip screw” collars, and handled access panels, we’ve made the unit easy to install, easy to maintain, and easy to use. Units are pre-wired and pre-charged with environmentally sound Puron^® (R-410A) refrigerant at the factory. The units are factory tested in cooling mode.

Performance Features

• ASHRAE 90.1 and Energy Star compliant
• Up to 15.6 SEER, 13.0 IEER, and 12.2 EER
• Standard cooling operating range up to 125° F (52° C) and down to 35° F (2° C). Low ambient controllers can bring cooling operation down to -20° F (-29° C)
• 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
• TXV refrigerant metering device on each circuit with removable power element
• Fully insulated cabinet

Maintenance Features

• Control terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement
• Access panels with easy grip handles and tool-less filter access door
• Innovative, easy starting, no-strip screw feature on unit access panels
• Optional hinged access panels also available
• Belt drive evaporator-fan motor and pulley combinations available on all three phase models to meet any application
• Electric Drive x13 (5 speed/torque) motor on 04 to 06 models
• Two-inch disposable return air filters

Installation Features

• Same footprint as installed Carrier 3-5 and 7.5-10 ton rooftops back to 1989,  reducing installation costs and time
• Field convertible from vertical to horizontal airflow for slab mounting (sizes 04 to 14)
• Provisions for thru-the-bottom power entry capability as standard
• Single point gas and electric connections
• Full perimeter base rail with built-in rigging adapters and fork truck slots
• Dedicated vertical and horizontal airflow models available (factory option on size 17 to 28 units)

Reliability Features

• Scroll compressors with internal line-break overload protection
• 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
• Solid-state electronic direct spark ignition system and flame roll-out safety protector

Standard Limited Warranty

• 10 years parts only electric heater
• 5 years parts only compressor
• One year parts only on all other parts
• Extended warranty packages available

Factory-Installed Options

• Cabinet
  • Thru-the-base electrical or gas-line connections
  • Hinged access panels
  • Foil-faced insulation
• Coil Options
  • Cu/Cu indoor and/or outdoor coils
  • Pre-coated outdoor coils
  • Premium, E-coated outdoor coils
• Humidity Control
  • Humidi-MiZer Adaptive dehumidification system
• Condenser Protection
  • Condenser coil hail guard (louvered design)
• Controls
  • ComfortLink™ DDC communicating controller
  • PremierLink™ DDC communicating controller
  • RTU OPEN™ open-protocol controller
  • Smoke detector (supply and/or return air)
• Energy Recovery
  • EnergyX® Factory Integrated Energy Recovery
• 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 17-30)
  • Barometric relief
  • Power exhaust (sizes 17-30)
• Economizer Sensors & IAQ Devices
  • Single dry bulb temperature sensors
  • Single enthalpy sensors
  • CO2 sensor (wall, duct, or unit mounted)
• Electric Heat
  • Multiple Electric Resistance Heater KW Sizes
  • Single Point kit
• Indoor Motor & Drive
  • Multiple motor and drive packages
  • Staged Air Volume (SAV) Indoor Fan Speed System (sizes 08-28)
• Low Ambient Control
  • Motormaster® head pressure controller
• Power Options
  • Convenience outlet (powered)
  • Convenience outlet (unpowered)
  • Non-fused disconnect
  • HACR Circuit Breaker

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™ open-protocol controller
  • Smoke detector (supply and/or return air) (sizes 17-30)
  • 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)