48LC Packaged Rooftop Unit from Carrier

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48LC WEATHEREXPERT®

Single-Package Rooftop
Ultra-High Efficiency
Gas Heating/Electric Cooling Units
3 to 5 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

Options/Accessories

Category	Item	Factory Installed Option	Field Installed Accessory
Cabinet	Thru -the-base electrical or gas-line connections	Y	Y
	Hinged access panels	Y
	Foil faced insulation throughout cabinet	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
	RTU-OPEN™ open-protocol controller	Y	Y
	ComfortLink controls with scrolling marquee	Y
	Smoke detector (supply and/or return air)	Y	Y
Economizers & Outdoor Air Dampers	EconoMi$er X (for electro-mechanical controlled RTUs)	Y	Y
	EconoMi$er2 (for DDC controlled RTUs)	Y	Y
	Motorized 2 position outdoor-air damper	Y	Y
	Barometric relief¹	Y	Y
	Power exhaust		Y
Economizer Sensors & IAQ Devices	Single dry bulb temperature sensors²	Y	Y
	Differential dry bulb temperature sensors²		Y
	Single enthalpy sensors²	Y	Y
	Differential enthalpy sensors²		Y
	CO2 sensor (wall, duct, or unit mounted)²	Y	Y
Gas Heat	Liquid propane (LP) conversion kit		Y
	Stainless steel heat exchanger	Y
	High altitude conversion kit		Y
	Flue discharge deflector		Y
Indoor Motor & Drive	Direct drive ECM indoor motor	Y
Indoor Motor & Drive	Belt drive motor with VFD system	Y
Low Ambient Control	ComfortLink provides cooling operation down to 0°F (-18°C)	Y
Low Ambient Control	Standard unit operates down to 10°F (-12°C)	Y
Power Options	Convenience outlet (powered)	Y
	Convenience outlet (unpowered)	Y
	Non-fused disconnect	Y
	HACR circuit breaker	Y
Roof Curbs	Roof curb 14" (356mm)		Y
Roof Curbs	Roof curb 24" (610mm)		Y

Refer to Product Data for further information.

Notes:

1.	Included with economizer.
2.	Sensors for optimizing economizer.


	Quality Assurance Certified to ISO 9001

Carrier Corporation

A Member of The United Technologies Corporation Family

Stock Symbol: UTX

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