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Single-Package Rooftop
Standard Efficiency Heat Pump Units
3 to 20 Nominal Tons

48/50TC WeatherMaster Rooftop Unit with Puron Refrigerant

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 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 environmentally sound Puron (R-410A) refrigerant and are factory tested.

Performance Features
  • Puron® (R-410A) HFC refrigerant
  • ASHRAE compliant and Energy Star qualified
  • Single-stage capacity control (sizes 04 to 07)
  • Two-stage cooling capacity control (sizes 08 to 24)
  • SEERs up to 13.4
  • EERs up to 11.2
  • IEERs up to 12.2
  • HSPFs up to 7.7
  • COPS up to 3.4
  • Exclusive 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
  • Acutrol™ refrigerant metering system
  • Fully insulated cabinet
  • Cooling operating range up to 115°F (46°C) and down to 25°F (-4°C) on size 04 to 14 units or down to 30°F (-1°C) on size 16 and 24 units
  • Rated in accordance with ARI Standards 210 (sizes 04-09) and 360 (sizes 07-24)
  • Designed in accordance with UL Standard 1995
  • Listed by UL and UL, Canada, or ETL
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
Maintenance Features
  • Access panels with easy grip handles
  • Innovative, easy starting, no-strip screw feature on unit access panels
  • Two-inch disposable return air filters
  • Tool-less filter access door
  • Belt drive evaporator-fan motor and pulley combinations available on all sizes to meet any application
  • Electric drive X13 (5 speed/torque) motor (sizes 04 to 06)
  • New terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement
  • Simplified control box arrangement
Installation Features
  • Field convertible from vertical to horizontal airflow for slab mounting; No spcial kits required (size 04-14 units)
  • Provisions for thru-the-bottom power entry capability as standard
  • Single point 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 17-28 units)
Standard Limited Warranty
  • 5-year parts only on electric heater
  • 5-year parts only on compressor
  • 1-year parts only on other parts
  • Extended warranty packages available
50TCQ Options and Accessories
Category Item Factory
Cabinet Thru -the-base electrical or gas-line connections Y Y
Coil Options Cu/Cu indoor and/or outdoor coils Y  
Pre-coated outdoor coils Y
E-coated outdoor coils Y  
Condenser Protection Condenser coil hail guard (louvered design) Y Y
Controls Thermostats, temperature sensors, and subbases   Y
PremierLink™ DDC (Direct Digital Control) communicating controller Y Y
RTU-OPEN multi-protocol controller Y  
Smoke detector (supply and/or return air) Y Y
Time Guard II compressor delay control circuit   Y
Filter status switch1   Y
Fan status switch1   Y
Economizers & Outdoor Air Dampers EconoMi$er IV (for electro-mechanical controlled rooftop units) Y Y
EconoMi$er2 (for DDC controlled rooftop units) Y Y
Motorized two-position outdoor-air damper Y Y
Manual outdoor-air damper   Y
Barometric relief2 Y Y
Power exhaust   Y
Economizer Sensors & IAQ Devices Single dry bulb temperature sensors3 Y Y
Differential dry bulb temperature sensors3   Y
Single enthalpy sensors3 Y Y
Differential enthalpy sensors3   Y
CO2 sensor (wall, duct, or unit mounted)3 Y Y
Indoor Motor & Drive Multiple motor and drive packages Y  
Low Ambient Control Motormaster® head pressure controller4   Y
Power Options Convenience outlet (powered) Y  
Convenience outlet (unpowered) Y  
Non-fused disconnect Y  
Roof Curbs Roof curb 14 in. ((356mm)   Y
Roof curb 24 in. (610mm)   Y

Refer to Product Data for further information.


1. Use in conjunction with specialized thermostat or controls device.
2. Included with economizer.
3. Sensors for optimizing economizer.
4. See application data for assistance.
Puron evironmentally sound refrigerantashrae90.1
AHRI standard 210/240 unitary small hp
C-UL-USC-UL-USQuality Assurance Certified to ISO 9001

Additional Information
Physical data
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