WeatherMaker® Applied Rooftop Units
50K
Electric Cooling with Puron Advance® (R-454B) Refrigerant with Optional Electric Heat
20 to 60 Nominal Tons
Carrier K Series Applied Rooftop products are pre-wired and charged with Puron Advance™ (R-454B) low global warming potential (GWP) refrigerant and tested in both cooling and heating modes (if equipped) at the factory. All models feature a commercial grade cabinet with fully hinged access panels and are designed to fit most legacy Carrier 48/50A and 48/50E curbs. All K series units include a high-capacity forward curve indoor fan with variable frequency drive (VFD) control and available Staged Air Volume (SAV) or Variable Air Volume (VAV) configurations to meet application requirements.
The standard SmartVu™ control includes a 7-inch touchscreen display with easy to navigate user interface for easy setup and configuration. SmartVu™ can operate stand-alone, with a thermostat, with Carrier i-Vu® 8.0 web-based interfaces, or with other BACnet building automation systems (BAS). A variety of factory installed options are available, including electric heat, ultra-low leak economizer, and modulating Humidi-MiZer® dehumidification.
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
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
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
Size | Nominal Capacity (Tons) | Standard Airflow (CFM) | Gross Cooling (BTUH) | Heating Capacity Electric (kW) | Base Weight* (lbs.) | Dimensions* (ft-in) | |||
---|---|---|---|---|---|---|---|---|---|
Low | High | ||||||||
020 | 20 | 8000 | 240 | 36 | 72 | 3169 | 13'-9" | 7'-10" | 6'-1⅛" |
026 | 25 | 10000 | 278 | 3199 | |||||
030 | 30 | 12000 | 308 | ||||||
034 | 35 | 14000 | 340 | ||||||
040 | 40 | 16000 | 415 | 4290 | 17'-11" | ||||
050 | 50 | 18000 | 500 | 4272 | |||||
060 | 60 | 24000 | 625 | 54 | 108 | 5793 | 25'-11" |
*Standard chassis/vertical airflow. See your Carrier representative for information and other configurations.
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
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
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
Size | Nominal Capacity (Tons) | Standard Airflow (CFM) | Gross Cooling (BTUH) | Heating Capacity Electric (kW) | Base Weight* (lbs.) | Dimensions* (ft-in) | |||
---|---|---|---|---|---|---|---|---|---|
Low | High | ||||||||
020 | 20 | 8000 | 240 | 36 | 72 | 3169 | 13'-9" | 7'-10" | 6'-1⅛" |
026 | 25 | 10000 | 278 | 3199 | |||||
030 | 30 | 12000 | 308 | ||||||
034 | 35 | 14000 | 340 | ||||||
040 | 40 | 16000 | 415 | 4290 | 17'-11" | ||||
050 | 50 | 18000 | 500 | 4272 | |||||
060 | 60 | 24000 | 625 | 54 | 108 | 5793 | 25'-11" |
*Standard chassis/vertical airflow. See your Carrier representative for information and other configurations.