Carrier 48LC WEATHEREXPERT 6 – 10 Tons
4850LC_UNIT_ICON

Carrier 48LC WEATHEREXPERT

Single-Package Rooftop
Ultra-High Efficiency
Gas Heating/Electric Cooling Units
12.5 to 23 Nominal Tons

48LC WEATHEREXPERT™ rooftop units were designed by customers for customers. They are Carrier’s most efficient commercial packaged rooftop ever produced. The multi stage cooling compressor with Carrier’s Staged Air Volume (SAV™) system allows for added comfort, energy savings and humidity control. With the use of ComfortLink controls and the belt drive variable frequency drive fan system, the unit is ideal for single zone variable air volume capability. Units are pre-wired and pre-charged with environmentally sound Puron® (R-410A) refrigerant at the factory. The units are factory tested in both heating and cooling modes.

Performance Features

  • Puron® (R-410A) HFC refrigerant
  • Exceeds ASHRAE 90.1 and Energy Star efficiency levels
  • Meets or exceeds Consortium for Energy Efficiency (CEE) efficiency levels
  • Two-stage cooling capacity scroll compressor
  • SEERs up to 17.5 with direct drive ECM indoor fan system
  • SEERs up to 16.4 with belt drive/VFD indoor fan system
  • Outdoor sound levels as low as 76 dBs
  • Exclusive non-corrosive composite condensate pan in accordance with ASHRAE 62 Standard, sloping design; side or center drain
  • Gas efficiencies up to 82%
  • Induced draft combustion gas heating system
  • Single and multi-state heating
  • 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
  • Enhanced copper tube and aluminum fin designed condenser and evaporator coils. Special coated coils also available
  • Exclusive IGC solid-state control for on-board diagnostics with LED error code designation, burner control logic and energy saving indoor fan motor delay
  • Dedicated 3-5 ton “Low NOx” models available that meet California Air Quality Management NOx requirement of 40 nangram/joule or less. Low NOx models include stainless steel heat exchangers.
  • Standard cooling operating range up to 125 °F (52°C) and down to 10°F (-12°C).
  • Cooling operation down to 0°F (-18°C) with ComfortLink controls
  • Rated in accordance with ARI Standards 210/240
  • Designed in accordance with Underwriters’ Laboratories Standard 1995
  • Listed by UL and UL, Canada

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
  • Optional hinged access panels also available
  • Belt drive evaporator-fan motor and pulley combinations with VFD system
  • ECM direct drive (multi-speed and torque) indoor fan motor system
  • New terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement

Installation Features

  • Field convertible from vertical to horizontal airflow for slab mounting without any special kits
  • 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

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
  • Exclusive IGC anti-cycle protection for gas heat operation
  • Solid-state electronic direct spark ignition system
  • Flame roll-out safety protector
  • Liquid line filter drier as standard

Standard Limited Warranty

  • 10 years parts only heat exchanger – aluminized
  • 15 years parts only heat exchanger – stainless steel
  • 5 years parts only compressor
  • 3 years parts only on ComfortLink controls
  • One year parts only on all other parts
  • Extended warranty packages available