Single-Package Rooftop Standard Efficiency – 14 SEER Electric Cooling Units with Optional Electric Heat
3 to 5 Nominal Tons
50KC 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 Puron® (R-410A) refrigerant at the factory. The units are factory tested in cooling mode.
Performance Features
ASHRAE 90.1 compliant
Single-stage cooling capacity control
Up to 14.1 SEER and 12.0 EER
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
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
Direct Drive – ECM indoor fan motor standard with optional belt drive systems available
Two-inch disposable return air filters
Installation Features
Same footprint as installed Carrier 3-5 ton rooftops back to 1989, reducing installation costs and time
Field convertible from vertical to horizontal airflow configuration
Provisions for thru-the-bottom power entry capability as standard
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
Liquid line filter drier as standard
Standard Limited Warranty
5 years parts only electric heater
5 years parts only compressor
One year parts only on all other parts
Additional extended warranty packages available
Nominal Cooling Ton Size
Cooling Stages
AHRI Efficiency (SEER) EER
Dimensions (in) LxWxH
Electric Heat Nominal kW Range
Approx. Unit Weight (lbs)
3
1
(14.0)
74x47x33
4.0 to 20.0
445
4
1
(14.0)
74x47x33
4.0 to 20.0
499
5
1
(14.1)
74x47x41
5.0 to 25.0
552
Factory-Installed
Field-Installed
Cabinet
Thru the base electrical or gas line connections
X
X
Hinged access panels
X
Coil Options
Cu/Cu indoor and/or outdoor coils
X
Pre-coated outdoor coils
X
Premium, e-coated outdoor coils
X
Humidity Control
Humidi-MiZer adaptive dehumidification system (3-phase models only)
X
Condenser Protection
Condenser coil hail guard (louvered design)
X
X
Controls
Thermostats, temperature sensors and subbases
X
PremierLink DDC communicating controller
X
X
RTU Open multi-protocol controller
X
X
Smoke detector (supply and/or return air)
X
Time Guard II compressor delay control circuit
X
Filter status switch
X
Fan status switch
X
Economizers & Outdoor Air Dampers
EconoMi$er IV (for electro-mechanical controlled RTUs)
X
X
EconoMi$er X (for electro-mechanical controlled RTUs with CA Title 24 FDD)
