WeatherMaster® High-Efficiency Single-Packaged Rooftop Units
48HC

Performance Features

• ASHRAE 90.1 and Energy Star compliant
• Up to 15.6 SEER, 13.0 IEER, and 12.2 EER
• Gas efficiencies up to 82%
• 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
• Exclusive IGC solid-state control for on-board diagnostics with LED error code designation, burner control logic and energy saving indoor fan motor delay
• 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 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
• Exclusive IGC anti-cycle protection for gas heat operation
• Solid-state electronic direct spark ignition system and flame roll-out safety protector

Standard Limited Warranty

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

For California Residents - 3-5 Ton G/E Models Only

For installation in SCAQMD only: This furnace does not meet the SCAQMD Rule 1111 14 ng/J NOx emission limit, and thus is subject to a mitigation fee of up to $450. This furnace is not eligible for the Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.

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 17-28)
  • Barometric relief
  • Power exhaust (sizes 17-28)
• Economizer Sensors & IAQ Devices
  • Single dry bulb temperature sensors
  • Single enthalpy sensors
  • CO2 sensor (wall, duct, or unit mounted)
• Gas Heat
  • Stainless steel heat exchanger
  • Flue discharge deflector
• 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)
  • Time Guard II compressor delay control circuit
• 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
  • 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)
• Gas Heat
  • Liquid propane (LP) conversion kit
  • High altitude conversion kit
• Low Ambient Control
  • Winter start kit
  • Motormaster® head pressure controller
• Roof Curbs
  • Roof curb 14” (356mm)
  • Roof curb 24” (610mm)

Gas Heating/Electric Cooling Models (48HC)

AHRI = Air-Conditioning, Heating & Refrigeration Institute
ASHRAE = American Society of Heating, Refrigerating and Air Conditioning, Inc.
IEER = Integrated Energy Efficiency Ratio
SEER = Seasonal Energy Efficiency Ratio

NOTES
1. Rated and certified under ARI Standard 210/240---06 or 340/360---07, as appropriate.
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 48HC units comply with ASHRAE 90.1-2010 Energy Standard for minimum SEER and EER requirements.
4. 48HC units comply with US Energy Policy Act (2005).