48TC Packaged Rooftop Unit from Carrier


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48TC WEATHERMAKER®

Single-Package Rooftop
Standard Efficiency
Gas Heating/Electric Cooling Units
3 to 27.5 Nominal Tons

48/50TC WeatherMaster Rooftop Unit with Puron Refrigerant

48TC WEATHERMAKER® rooftop unit 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

Puron® (R-410A) HFC refrigerant
ASHRAE 90.1 compliant
Single-stage capacity control (sizes 04 to 12)
Two-stage cooling capacity control (sizes 08 to 30)
SEERs up to 13.0
EERs up to 11.1
IEERs up to 11.8
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
Single and multi-state heating
Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection
Acutrol™ refrigerant metering system
Fully insulated cabinet
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 ess. Low NOx models include stainless steel heat exchangers.
Cooling operating range up to 115 °F (46°C) and down to 25°F (-4°C) using winter start kit
Rated in accordance with ARI Standards 210 (sizes 04 to 06 ) and 360 (sizes 07 to 30)
Designed in accordance with Underwriters’ Laboratories Standard 1995
Listed by UL and UL, Canada, or ETL

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
Belt drive evaporator-fan motor and pulley combinations available to meet any application
New control terminal board facilitating simple safety circuit troubleshooting and simplified control box arrangement

Installation Features

Field convertible from vertical to horizontal airflow for slab mounting; No special kits required (sizes 04-14 only). Field kit needed for size 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 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 Novation™ condenser coil
One year parts only on all other parts
Extended warranty packages available

Options/Accessories

48TC Options and Accessories

Category	Item	Factory Installed Option	Field Installed Accessory
Cabinet	Thru -the-base electrical or gas-line connections	Y	Y
Coil Options	Cu/Cu indoor and/or outdoor coils	Y⁵
	Pre-coated outdoor coils	Y⁵
	Premium, E-coated outdoor coils	Y⁵
Humidity Control	Humidi-MiZer Adaptive dehumidification system (sizes 04-28 only)	Y⁵
Condenser Protection	Condenser coil hail guard (louvered design)	Y⁵	Y
Controls	Thermostats, temperature sensors, and subbases		Y
	PremierLink DDC communicating controller	Y	Y
	RTU-OPEN multi-protocol controller	Y
	Smoke detector (supply and/or return air)	Y	Y (sizes 17-30)
	Time Guard II compressor delay control circuit		Y
	Filter status switch¹		Y
	Fan status switch¹		Y
Economizers & Outdoor Air Dampers	EconoMi$er IV (for electro-mechanical controlled RTUs)	Y⁵	Y
	EconoMi$er2 (for DDC controlled RTUs)	Y⁵	Y
	Motorized 2 position outdoor-air damper	Y⁵	Y
	Manual outdoor-air damper	Y (sizes 17-30)	Y
	Barometric relief²	Y	Y
	Power exhaust	Y (sizes 17-30)	Y
Economizer Sensors & IAQ Devices	Single dry bulb temperature sensors³	Y	Y
	Differential dry bulb temperature sensors³		Y
	Single enthalpy sensors³	Y	Y
	Differential enthalpy sensors³		Y
	CO2 sensor (wall, duct, or unit mounted)³	Y	Y
Gas Heat	Liquid propane (LP) conversion kit		Y
Gas Heat	High altitude conversion kit		Y
Indoor Motor & Drive	Multiple motor and drive packages	Y
Low Ambient Control	Winter start kit		Y
Low Ambient Control	Motormaster head pressure controller⁴		Y
Power Options	Convenience outlet (powered)	Y⁵
	Convenience outlet (unpowered)	Y
	Non-fused disconnect	Y
Roof Curbs	Roof curb 14" (356mm)		Y
Roof Curbs	Roof curb 24" (610mm)		Y

Refer to product data for further information.

Notes:

1.		Use in conjunction with specialized thermostat or controls device.
2.		Included with economizer.
3.		Sensors for optimizing economizer.
4.		See application data for assistance.
5.		Not available on single phase models.


		Quality Assurance Certified to ISO 9001

Additional Information

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Carrier is a part of UTC Climate, Controls & Security, a unit of United Technologies Corp