Louvered Hail Guard Accessory for 48/50K
WeatherMaker® 50K Applied Rooftop Unit
Technical Specifications
At a glance
Type
Electric CoolingRefrigerant
R-454BCapacity Range
20 - 60 TonsFeatures
Standard Features
Low global warming potential (GWP) Puron Advance™ refrigerant (R454B)
Refrigerant leak detection system with dissipation control
Uneven tandem scroll compressors for improved staging
Galvanized steel condensate drain pan
Single refrigerant circuit with fully active Al/Cu evaporator coil on 20-35 tons
Dual refrigerant circuit with intertwined Al/Cu evaporator coil on 40-60 tons
EXV metering devices for wide operating range
Large MCHX condenser coils for reduced refrigerant charge and efficient operation
Mechanical cooling from 50°F to 115°F ambient
Belt drive indoor fan system with forward curve blowers
Open drip proof (ODP) indoor fan motor with variable frequency drive (VFD) control for application flexibility
Multiple fan motor size selections
Pre-painted exterior panels and primer-coated interior panels tested to 500 hours salt spray protection
Fully insulated cabinet with fiberglass insulation
Manual outdoor air damper with outdoor air hoods
Dedicated 2” pre-evaporator filter rack with MERV 5 filter
Carrier SmartVu™ controls with 7” touchscreen display
Standard DXLAT, OAT, and RAT sensors
Multiple indoor fan control methods, including SAV, CV, SZ-VAV, multi-zone VAV duct pressure, or 3rd party input
UL listed for compliance with UL Standard 60335-2-40
Certified to AHRI Standard 340/360
10kA short circuit current rating (SCCR)
Reliability Features
SmartVu controls with system monitoring and alarming
Liquid line filter drier to help protect refrigerant system
DX high and low-pressure protection
EXV metering devices optimize unit performance
Standard crank case heaters
Installation Features
Fits most legacy Carrier A & E curbs
Heavy duty base rail with lifting lugs for easy rigging
Dedicated supply and return configurations
Provisions for thru-the-bottom power and control wiring
Single point electric and gas connections
Terminal block power connection
Factory installed sensors for control operation
Maintenance Features
Dedicated high and low voltage control sections
DX pressure and temperature sensors can be read from the SmartVu display, eliminating the need for external gauges
Hinged doors on frequently accessed sections, including controls, filters, evaporator, and indoor fan motor
Two-inch disposable return air filters with filter hook
Standard Limited Warranty
3-years parts only on MicroChannel condenser coil
5-years non pro-rated warranty on heat exchanger
One year standard parts only
Options
Factory-Installed Options
Electric Heat
High or low electric heat with two stage control
High or low electric heat with modulating silicon rectifier (SCR) control
Refrigerant Circuit
Lead, variable capacity digital compressor
Low sound package includes shrouded, low sound condenser fans, low RPM motors, and sound blankets
Low ambient package includes variable speed condenser fans to allow mechanical cooling down to -20°F (-28°C)
High efficiency, low sound, low ambient package with Greenspeed® intelligence for improved part load efficiency, low ambient mechanical cooling, and low sound operation
Humidi-MiZer® adaptive dehumidification system with modulating control
Construction
Double wall construction
Double wall construction with Agion® anti-microbial coating
Double wall bottom for slab or dunnage mounted applications
Indoor Fan Motor
Shaft grounding rings
VFD bypass
TEFC indoor fan motor
Condenser & Evaporator Coils
E-Coat MCHX Condenser
E-Coat Al/Cu Evaporator
Stainless Steel Drain Pan
Controls
Humidity and enthalpy sensing (OARH & RARH) for dehumidification or free cooling control
Return air CO₂ sensor for ventilation control
Outdoor Air & Relief
Ultra-low leak economizer for ventilation and free cooling
Barometric relief
Multi-stage power exhaust with staged control
Multi-stage power exhaust with staged building pressure control
Power & control for accessory multi-stage power exhaust with staged building pressure control
Power & control for accessory high-capacity power exhaust with modulating building pressure control
Service & Safety
Condensate overflow switch
Pre-filter status switch with access door retainers
Service pack with compressor isolation valves. replaceable core filter drier, extended lube lines
Return air smoke detector
Chicago refrigerant relief valve
Electrical
Non-fused disconnect
Powered or un-powered convenience outlet
Phase monitor
High short circuit current rating (65kA for 208/230/460V, 25kA for 575V)
Indoor Air Quality (IAQ)
2” pre-evaporator filter rack with 2” MERV 8 filters
4” pre-evaporator filter rack with 4” MERV 8 or 13 filters
Factory-installed UV-C fixture with wiring, disconnect switch, door interlocks, and access door with UV safe view port
Accessories
Field-Installed Accessories
Indoor Air Quality
Return air CO₂ sensor
CO₂ space sensor
CO₂ aspirator box
UV-C Emitters
Building Pressure
Multi-stage power exhaust with staged building pressure control
High-capacity power exhaust with modulating building pressure control
Barometric relief
Controls
Return air CO₂ sensor
Smoke detector
Dirty filter switch
Non-communicating space sensors, including temperature and humidity
Communicating space sensors, including temperature and humidity
Space CO₂ sensors
Carrier i-Vu® Equipment Touch display
Thermostats
Miscellaneous Options
14-inch Roof Curb
Physical Data
| Size | Nominal Capacity (tons) | Standard Airflow (Cfm) | Gross Cooling (Btuh) | Low Electric Heating Capacity (kW) | High Electric Heating Capacity (kW) | Base Weight (lbs) | Length (in) | Width (in) | Height (in) |
| 020 | 20 | 8000 | 240 | 36 | 72 | 3169 | 13'-9" | 7'-10" | 6'-1⅛" |
| 026 | 25 | 10000 | 278 | 36 | 72 | 3199 | 13'-9" | 7'-10" | 6'-1⅛" |
| 030 | 30 | 12000 | 308 | 36 | 72 | 3199 | 13'-9" | 7'-10" | 6'-1⅛" |
| 034 | 35 | 14000 | 340 | 36 | 72 | 3199 | 13'-9" | 7'-10" | 6'-1⅛" |
| 040 | 40 | 16000 | 415 | 36 | 72 | 4290 | 17'-11" | 7'-10" | 6'-1⅛" |
| 050 | 50 | 18000 | 500 | 36 | 72 | 4272 | 17'-11" | 7'-10" | 6'-1⅛" |
| 060 | 60 | 24000 | 625 | 54 | 108 | 5793 | 25'-11" | 7'-10" | 6'-1⅛" |
*Standard chassis/vertical airflow. See your Carrier representative for information and other configurations.
Documents
Accessory and Kit Data
Compressor Sound Blanket Accessory for 48/50K
Roof Curb Accessory for 48/50K
Power Exhaust and Barometric Relief Accessories for 48/50K
RNET Harness Accessory for 48/50K 20-60 Tons and 48/50V 27.5-100 Tons, P/N CRRNETPH001A00
Ultraviolet Lamp Accessory for 48/50K, 48/50V
Return Smoke Detector Accessory for 48/50K
High-Capacity Power Exhaust Accessories for 48/50K 20-60, Part Numbers: CRPWREXH071A01 – CRPWREXH079A01
Brochure
Light Commercial and Applied Packaged Rooftop Unit Line Card
Controls
SmartVu™ Controls Version 3.X for Applied Rooftop Gas Heat/Electric Cooling and Electric Heat/Electric Cooling Units with PIC 6.1 Hardware
Guide Specifications
50K Guide Specifications, 20 to 60 Nominal Tons
Installation
50K 20-60 WeatherMaker® Electric Cooling and Optional Electric Heating Applied Rooftop Units with Puron Advance™ Refrigerant (R-454B) and Carrier SmartVu™ Controls
Maintenance
50K 20-60 WeatherMaker® Electric Cooling Applied Rooftop Units with Puron Advance™ Refrigerant (R-454B) and Carrier SmartVu™ Controls with PIC 6.1 Hardware and Software 2.X
Product Data
48/50K WeatherMaker® Applied Rooftop Units 20 to 60 Nominal Tons
REVIT and 3D DRW Files
48/50K Family REVIT Files
50K 20-34 Ton Electric Family REVIT Files
Warranty Card
Limited Warranty - 50K and 50V Commercial Rooftop Equipment