Gas Heating / Electric Cooling with Puron® (R-410A) Refrigerant
6 to 27.5 Nominal Tons
48TC WeatherMaker® 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.
Performance Features
- ASHRAE 90.1 compliant
- Up to 13.0 SEER, 11.8 IEER, and 11.1 EER
- Gas efficiencies up to 82%
- Cooling operating range up to 115 °F (46°C) and down to 25°F (-4°C) using winter start kit
- 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
- Innovative, easy starting, no-strip screw feature on unit access panels
- Tool-less filter access door
- Optional hinged access panels also available
- Belt drive evaporator-fan motor and pulley combinations available to meet any application
- Two-inch disposable return air filters
Installation Features
- Same footprint as installed Carrier 3-12.5 ton rooftops back to 1989, reducing installation costs and time
- Field convertible from vertical to horizontal airflow for slab mounting (sizes 04-16)
- Provisions for thru-the-bottom power entry capability as standard
- Dedicated vertical and horizontal airflow models available (sizes 17 to 30 only)
- Single point gas, electric, and controls 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 and flame roll-out safety protector
Factory-Installed Options
-
Cabinet
- Thru-the-base electrical or gas-line connections
- Hinged access panels
-
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 (sizes 04-28 only)
-
Condenser Protection
- Condenser coil hail guard (louvered design)
-
Controls
- PremierLink DDC communicating controller
- RTU OPEN multi-protocol controller
- Smoke detector (supply and/or return air)
-
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$er2 (for DDC controlled RTUs)
- Ultra-low leak economizer dampers
- Motorized 2 position outdoor-air damper
- Manual outdoor-air damper (sizes 17-30)
- Barometric relief
- Power exhaust (sizes 17-30)
-
Economizer Sensors & IAQ Devices
- Single dry bulb temperature sensors
- Single enthalpy sensors
- CO2 sensor (wall, duct, or unit mounted)
-
Indoor Motor & Drive
- Multiple motor and drive packages
- Staged Air Volume (SAV) Indoor Fan Speed System (sizes 08-30)
-
Power Options
- Convenience outlet (powered)
- Convenience outlet (unpowered)
- Non-fused disconnect
Field-Installed Accessories
-
Cabinet
- Thru-the-base electrical or gas-line connections
-
Condenser Protection
- Condenser coil hail guard (louvered design)
-
Controls
- Thermostats, temperature sensors, and subbases
- PremierLink DDC communicating controller
- RTU OPEN multi-protocol controller
- Smoke detector (supply and/or return air)(sizes 17-30)
- Time Guard II compressor delay control circuit
- Filter status switch
- Fan status switch
-
Economizers & Outdoor Air Dampers
- EconoMi$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 (sizes 17-30)
- Barometric relief
- Power exhaust(sizes 17-30)
-
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)
| 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) |
|---|---|---|---|---|---|---|---|
| 6 | 1 | 11.0 | 74 x 47 x 41 | 72 | 125 | 150 | 652 |
| 7.5 | 1 | 11.0 | 88 x 59 x 41 | 125 | 180 | 224 | 780 |
| 7.5 | 2 | 11.0 | 88 x 59 x 41 | 125 | 180 | 224 | 835 |
| 8.5 | 1 | 11.0 | 88 x 59 x 49 | 125 | 180 | 224 | 920 |
| 8.5 | 2 | 11.0 | 88 x 59 x 49 | 125 | 180 | 224 | 930 |
| 10 | 1 | 11.0 | 88 x 59 x 49 | 180 | 224 | 250 | 930 |
| 10 | 2 | 11.1 | 88 x 59 x 49 | 180 | 224 | 250 | 940 |
| 12.5 | 2 | 10.8 | 88 x 59 x 49 | 150 | 180 | 240 | 1167 |
| 15 | 2 | 10.8 | 116 x 63 x 57 | 220 | 310 | 400 | 1380 |
| 15 | 2 | 10.8 | 128 x 87 x 49 | 220 | 310 | 400 | 1907 |
| 17.5 | 2 | 10.8 | 128 x 87 x 49 | 220 | 310 | 400 | 1922 |
| 20 | 2 | 9.8 | 141 x 87 x 49 | 220 | 310 | 400 | 2072 |
| 25 | 2 | 9.8 | 141 x 87 x 49 | 220 | 310 | 400 | 2197 |
| 27.5 | 2 | 10.2 | 158 x 87 x 57 | 220 | 310 | 400 | 2320 |
