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Duct Free Systems

Duct free heating and cooling systems make your home's individual rooms or other small spaces more comfortable. Remember, just like whole-home systems, the higher the SEER/SEER2 and HSPF/HSPF2 ratings, the more efficient they will be.

The DOE’s regional breakdown by state is as follows:

  • North
    • 14.0 SEER/ 13.4 SEER2
    • 8.8 HSPF/7.5 HSPF2
  • Southeast
    • 15.0 SEER/ 14.3 SEER2
    • 12.2 EER/11.7 EER2
    • 8.8 HSPF/7.5 HSPF2
  • Southwest
    • 15.0 SEER/ 14.3 SEER2
    • 12.2 EER/11.7 EER2
    • 8.8 HSPF/7.5 HSPF2
DOE Regional SEER Breakdown Map

SEER/SEER2 And HSPF/HSPF2

SEER2 is an updated rating standard introduced by the DOE. SEER2 standards are intended to provide a better gauge of typical home operating conditions whereas the older SEER rating utilized very precise protocols to determine ratings in ideal conditions. SEER2 standards include updated testing means that give a better indication of how a unit will operate in the real world.

HSPF2 is the newest type of rating system that expands on the basic HSPF scale.

Much like miles-per-gallon for a car, SEER/SEER2, EER/EER2 and HSPF/HSPF2 offer an easy way to compare efficiencies of different products – the higher the rating, the more efficient the unit. Just be sure you are comparing either SEER vs SEER or SEER2 vs SEER2 (same for EER/EER2 and HSPF/HSPF2).

EER2 vs. SEER2

EER2 and SEER2 both evaluate an air conditioner’s energy efficiency, but they’re concerned with two different types of temperature conditions:

  • EER2 measures an air conditioner’s efficiency at the peak cooling temperature of 95°F.
  • SEER2 measures an air conditioner’s efficiency throughout an entire cooling season, with temperatures ranging from 65°F to 104°F.

Call Ferrell Air, LLC To Find Out If Duct-Free Systems Are Right For You.

We offer a variety of through-the-wall packaged terminal air conditioners (PTAC) and duct free heating and cooling systems to meet any individual room's needs. Call us now at 480-848-2790.

Ductless Outdoor Heat Pumps

37MPRA

Evolution® Heat Pump with Basepan Heater

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Model Family: 37MPRA
Purpose: Heat & Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 35.1 SEER2
Efficiency EER2: Up to 17.5 EER2
Efficiency HSPF2: Up to 30 HSPF2
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: Puron Advance
Sound Level: Outdoor sound: as low as 57 decibels
Compressor: Inverter Compressor
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration
Factory Warranty Compressor: 10-year compressor limited warranty to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • 100% Heating Capacity at 0° F (-17° C)
  • 100% Cooling capacity at -22° F (-30° C) without additional kit
  • Up to 75% of Heating Capacity at -22° F (-30° C)
  • Built-in basepan heater
  • Auto-restart function
  • Refrigerant leakage detection
  • Anti-corrosive fin coating
  • Heavy-gauge, galvanized steel construction
37MARA

Preferred Heat Pump with Basepan Heater

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Model Family: 37MARA
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Up to 26 SEER2
Efficiency EER2: up to 16.3 EER2
Efficiency HSPF2: up to 13.9 HSPF2
Energy Star Rated: Select sizes are ENERGY STAR® certified based on indoor unit pairing
Refrigerant Type: Puron Advance
Sound Level: Quiet Levels as low as 52.5 dB(A)
Compressor: Inverter Driven Compressor
Factory Warranty Parts: 10-Year Parts Limited Warranty
Factory Warranty Compressor: 10 year compressor warranty
Manufacturer's Stated Benefits:
  • Built-in basepan heater
  • Condenser high-temperature protection
  • 46° F heating mode (heating setback)
  • Anti-corrosive fin coating
  • Piping length up to 213 ft (65m)
37MGRA

Preferred Multi-zone Heat Pump with Basepan Heater

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Model Family: 37MGRA
Purpose: Heat and Cool
Zone Capability: Multi-zone
Efficiency SEER2: Up to 25.2 SEER2
Efficiency EER2: up to 14 EER2
Efficiency HSPF2: up to 10.4 HSPF2
Energy Star Rated: Select sizes are ENERGY STAR® certified based on indoor unit combinations
Refrigerant Type: Puron Advance
Sound Level: As low as 59.5 dB(A)
Compressor: Inverter Compressor
Factory Warranty Parts: 10-year parts limited warranty
Factory Warranty Compressor: 10-year compressor limited warranty
Manufacturer's Stated Benefits:
  • Built-in base pan heater
  • Auto-restart function
  • Anti-corrosive fin coating
  • Total zones range from 2 to 6 indoor heads
37MHRAQ

Legacy Line Heat Pump

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Model Family: 37MHRAQ
Purpose: Heat & Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 22.4 SEER2
Efficiency EER2: Up to 12.6 EER2
Efficiency HSPF2: Up to 9.4 HSPF2
Energy Star Rated: N/A
Refrigerant Type: Puron Advance
Sound Level: Sound levels as low as 52.5 decibels
Compressor: Inverter Compressor
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration
Factory Warranty Compressor: 10-year compressor limited warranty to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Built-in basepan heater
  • Auto-restart function
  • Condenser high-temperature protection
  • Anti-corrosive fin coating

Ductless High Wall Indoor Heat Pumps

615PHA

Evolution® Indoor Ductless High Wall Unit

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Model Family: 615PHA
Purpose: Heat & Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MPRA, 37MAHA
Matching Outdoor Unit: Multi-Zone: 37MGHA
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: Puron Advance
Number of Fan Speeds: Fully modulating fan speeds
Sound Level: Sound: as low as 16 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited and 10-year compressor limited warranties to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Up-down / right-left louver control (fixed or swing)
  • Relative Humidity Sensor
  • Intelligent Eye (occupancy sensor)
  • Built-in Wi-Fi®
  • ECO Mode
  • Aluminum Golden Hydrophilic pre-coated fins
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Turbo Mode
615AHA

Preferred™ High Wall Indoor Unit

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Model Family: 615AHA
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MGRA
Matching Outdoor Unit: Multi-Zone: 37MBRA, 37MARA
Energy Star Rated: Select systems with ENERGY STAR® certification
Refrigerant Type: Puron Advance
Number of Fan Speeds: 4
Sound Level: Quiet Levels As low as 16 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-Year Parts Limited Warranty
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Turbo Mode
  • Sleep Mode
  • Intelligent Eye (Occupancy Sensor)
  • Relative Humidity Sensor
45MHHAQ

Legacy™ Line High Wall Indoor Unit

Model Family: 45MHHAQ
Purpose: Heat & Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MHRAQ
Matching Outdoor Unit: Multi-Zone: N/A
Energy Star Rated: No
Refrigerant Type: Puron Advance
Number of Fan Speeds: Four fan speeds
Sound Level: Sound levels as low as 18.5 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Auto-restart function
  • Turbo Mode
  • Sleep Mode
  • Follow Me (senses temperature at handheld remote)
  • Up-down louver control (fixed or swing)
  • Filter is removable from the top
  • Improved serviceability with easy access to fan and electrical connections
  • Aluminum Blue Hydrophilic pre-coated fins

Ductless High Wall Indoor Air Conditioners

45MHHAC

Legacy Line™ Indoor Ductless High Wall Cooling-Only Unit

Model Family: 45MHHAC
Purpose: Cool Only
Zone Capability: Single Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MHRAC
Matching Outdoor Unit: Multi-Zone: N/A
Energy Star Rated: No
Refrigerant Type: Puron Advance
Number of Fan Speeds: Up to 4 Fan Speeds
Sound Level: Sound levels as low as 19 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Auto-restart function
  • Turbo Mode
  • Sleep Mode
  • Up-down louver control (fixed or swing)
  • Filter is removable from the top
  • Improved serviceability with easy access to fan and electrical connections
  • Aluminum Blue Hydrophilic pre-coated fins
  • Attractively styled, high−impact polystyrene.

Ductless Outdoor Air Conditioners

37MHRAC

Legacy™ Line Air Conditioner

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Model Family: 37MHRAC
Purpose: Cooling
Efficiency SEER2: Up to 22.2 SEER2
Efficiency EER2: Up to 12.5 EER2
Zone Capability: Single Stage
Energy Star Rated: Select sizes qualified
Refrigerant Type: Puron Advance
Sound Level: Sound levels as low as 52 decibels
Compressor: Inverter Compressor
Factory Warranty Parts: 10-year parts limited warranty upon registration
Factory Warranty Compressor: 10-year compressor limited warranty upon registration
Manufacturer's Stated Benefits:
  • Available in 115V and 208/230V
  • Refrigerant leakage detection
  • Auto-restart function
  • Anti-corrosive fin coating

Bryant Alternate Indoor Ductless Units

45MBCA

PREFERRED® DUCTLESS 4-WAY CASSETTE WITH PURON ADVANCE

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Model Family: 45MBCA
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2: Up to 23.7 SEER2
Efficiency EER2: Up to 18.0 EER2
Efficiency HSPF2: Up to 12.4 HSPF
Matching Outdoor Unit: Single-Zone: 37MAHAQ Heat Pump
Matching Outdoor Unit: Multi-Zone: 37MGRA
Energy Star Rated: ENERGY STAR®
Refrigerant Type: Puron Advance
Number of Fan Speeds: Three fan speeds
Sound Level: Silent mode indoor operation as low as 23.5 dB(A)
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty
Manufacturer's Stated Benefits:
  • Anti-corrosive fin coating
  • Washable built in filter
  • Heating Setback (46F Heating Mode)
45MBDA

Preferred™ Ducted Indoor Unit

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Model Family: 45MBDA
Purpose: Heat & Cool
Zone Capability: Single and Multi Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MARA
Matching Outdoor Unit: Multi-Zone: 37MGRA
Energy Star Rated: N/A
Refrigerant Type: Puron Advance
Number of Fan Speeds: Three Fan Speeds
Sound Level: Sound levels as low as 22 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited warranty to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Vertical or horizontal installation
  • Up to 0.8 in WG
  • Rear or bottom return
  • Outside air intake
  • Built-in condensate lift pump
  • Anti-Corrosive Fin Coating
  • Unit cabinet is constructed of galvanized steel. The cabinet is fully insulated for improved thermal and acoustic performance.
45MCFA

Preferred™ Ceiling/Floor Console Indoor Unit

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Model Family: 45MCFA
Purpose: Heat & Cool
Zone Capability: Single and Multi Zone
Efficiency SEER2: Dependent upon outdoor unit pairing
Efficiency EER2: Dependent upon outdoor unit pairing
Efficiency HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 37MARA
Matching Outdoor Unit: Multi-Zone: 37MGRA
Energy Star Rated: N/A
Refrigerant Type: Puron Advance
Number of Fan Speeds: Three fan speeds
Sound Level: Sound levels as low as 29 decibels
Wireless Remote: Yes
Factory Warranty Parts: 10-year parts limited and 10-year compressor limited warranties to the original purchasing owner upon timely registration
Manufacturer's Stated Benefits:
  • Modes: Cool, Heat, Dry, Fan, Auto
  • Refrigerant leak detection system
  • Auto-restart function
  • Louver control (fixed or swing)
  • Anti-corrosive fin coating
  • Follow Me (senses temperature at handheld remote)
  • Heating Setback (46° F Heating Mode)