Gas Heating / Electric Cooling with Puron® (R-410A) Refrigerant
3 to 25 Nominal Tons
48HC WeatherMaster® rooftop units 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 both heating and cooling modes.
Features
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 $450. This furnace is not eligible for the Clean Air Furnace Rebate Program: www.CleanAirFurnaceRebate.com.
Options
Factory-Installed Options
- Cabinet
- Thru-the-base electrical or gas-line connections
- Hinged access panels
- Foil-faced insulation
- Coil Options
- Cu/Cu indoor and/or outdoor coils
- Pre-coated outdoor coils
- Premium, E-coated outdoor coils
- Humidity Control
- Humidi-MiZer Adaptive dehumidification system
- Condenser Protection
- Condenser coil hail guard (louvered design)
- Controls
- ComfortLink™ DDC communicating controller
- PremierLink™ DDC communicating controller
- RTU OPEN™ open-protocol controller
- Smoke detector (supply and/or return air)
- Energy Recovery
- EnergyX® Factory Integrated Energy Recovery
- Economizers & Outdoor
- Air Dampers
- EconoMi$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)
Physical Data
Gas Heating/Electric Cooling Models (48HC)
| Nominal Cooling Ton Size | Cooling Stages | AHRI Efficiency (SEER) EER | Dimensions (in) LxWxH | Low Gas Heating Input (MBtuh) | Medium Gas Heating Input (MBtuh) | High Gas Heating Input (MBtuh) | Approx. Unit Weight (lbs) |
|---|
| 3 | 1 | (15.0) | 74 x 47 x 33 | 72 | 115 | -- | 505 |
| 4 | (15.6) | 74 x 47 x 41 | 150 | 590 |
| 5 | (15.2) | 600 |
| 6 | 12.0 | 88 x 59 x 41 | 125 | 765 |
| 7.5 | 2 | 88 x 59 x 49 | 125 | 180 | 224 | 925 |
| 8.5 |
| 10 | 180 | 224 | 250 | 1099 |
| 10 | 11.5 | 1099 |
| 12.5 | 12.2 | 116 x 63 x 57 | 150 | 180 | 240 | 1430 |
| 15 | 12.0 | 128 x 87 x 49 | 220 | 310 | 400 | 1892 |
| 17.5 | 141 x 87 x 49 | 2102 |
| 20 | 141 x 87 x 57 | 2247 |
| 25 | 11.2 | 158 x 87 x 57 | 2292 |
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).
