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Duct Free Systems

Duct Free Systems

No ductwork? No problem. Even homes without ductwork can be filled with comfort and peace of mind thanks to American Standard Heating & Air Conditioning ductless systems. That’s because these energy-efficient systems forgo the ducts in favor of a pair of indoor and outdoor units to heat and cool your home.

Why ductless HVAC systems are right for you?

How do you get cleaner, more comfortable air flowing into a home that has no central HVAC system? What about when you’ve put in an addition to your home that’s isolated from the existing ductwork? Ductless HVAC systems are the answer. They provide durable, energy-efficient heating and cooling solutions for these and other situations. Furthermore, you have more control over the air quality needs of specific areas. You can implement single-zone climate control and manage the temperature from room to room.

Ductless Indoor Units

NAXWST

NAXWST Indoor Ductless Wall-Mounted Heat Pump

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Model Family: NAXWST
Purpose: Heat & Cool
Zone Capability: Single zone and multi zone
Efficiency SEER2: Up to 24.6 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 12.8HSPF2
Matching Outdoor Unit: Single-Zone: NAXSST
Matching Outdoor Unit: Multi-Zone: NAXMMX
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R-410A
Number of Fan Speeds: Vertical air swing
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • INVERTER-driven compressor
  • Auto restart and auto cooling/heating changeover
  • Vertical air swing on all units
  • Compatible with kumo cloud® control app and Thermostat Interface
  • Provides instant warmth even in extreme climates (down to -13° F)
MSZ-EF

MSZ-EF Designer Indoor Unit

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Model Family: MSZ-EF
Purpose: Heat and Cool
Zone Capability: Single Zone
Efficiency SEER2:
Efficiency EER2:
Efficiency HSPF2:
Matching Outdoor Unit: Single-Zone:
Matching Outdoor Unit: Multi-Zone:
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: Vertical air swing
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5-year parts limited warranty
Manufacturer's Stated Benefits:
  • Available capacities in kBtu/h: 9, 12, 15, 18
  • Three colors to choose from: glossy white, matte silver and glossy black

Ductless Outdoor Units

NAXMMX

NAXMMX Outdoor Ductless Unit

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Model Family: NAXMMX
Purpose: Heat and Cool
Zone Capability: Multi zone
Efficiency SEER2: Up to 22 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 11.5 HSPF2
Energy Star Rated: ENERGY STAR®
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Inverter Driven Compressor
Factory Warranty Parts: 10-Year Limited Warranty on covered components.
Factory Warranty Compressor: 10 Year Limited Warranty
Manufacturer's Stated Benefits:
  • Mix and match flexibility of indoor unit styles and combinations
  • A wide range of indoor unit capacities that match the room size and requirements
  • Four- and five-ton outdoor unit can support up to eight indoor units using branch boxes
  • Auto restart following a power outage
  • Self-check function offering integrated diagnostics
NAXSKS

NAXSKS Outdoor Ductless Heat Pump

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Model Family: NAXSKS
Purpose: Heat & Cool
Zone Capability: Single zone
Efficiency SEER2: N/A
Efficiency EER2: N/A
Efficiency HSPF2: N/A
Energy Star Rated: No
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: INVERTER-driven compressor
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Factory Warranty Compressor: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • Provides cooling and heating in a wide range of capacities
  • Ventilation air knockouts
  • Built-in condensate lift mechanism
  • Multiple airflow adjustments
NAXSPB

NAXSPB Outdoor Ductless Heat Pump

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Model Family: NAXSPB
Purpose: Heat & Cool
Zone Capability: Single zone
Efficiency SEER2: Up to 33.1 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 13.5 HSPF2
Energy Star Rated: ENERGY STAR®
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: INVERTER-driven compressor
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Factory Warranty Compressor: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • Double-vane air delivery for enhanced circulation
  • 3D i-see Sensor™
  • Infrared human sensing technologies to measure location of human heat signatures
  • Multi-function wireless controller
  • Available capacities in kBtu/h: 06, 09, 12, 15, 18
  • Hyper-heating performance down to -13° F outdoor ambient
NAYSST

NAYSST Air Conditioner Outdoor Unit

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Model Family: NAYSST
Purpose: Cool Only
Efficiency SEER2: Up to 24.6 SEER2
Efficiency EER2: N/A
Zone Capability: Single Zone
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: R-410A
Sound Level: Quiet operation
Compressor: Inverter- Driven Compressor
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Factory Warranty Compressor: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • Compatible with the ST Series indoor unit
  • Available capacities in kBtu/h: 09, 12, 15, 18, 24, 30, 36

American Standard Alternate Indoor Ductless Units

NAXCKS

NAXCKS Indoor Ductless Ceiling Cassette Heat Pump

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Model Family: NAXCKS
Purpose: Heat & Cool
Zone Capability: Single & Multi Zone
Efficiency SEER2: Up to 16 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 9.6 HSPF2
Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
Matching Outdoor Unit: Multi-Zone: NAXWST, NAXWPH,NAXWMT
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: N/A
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • INVERTER-driven compressor
  • Provides cooling and heating in a wide range of capacities
  • Ventilation air knockouts
  • Built-in condensate lift mechanism
  • Multiple airflow adjustments
  • Available capacities in kBtu/h: 09, 12, 15
PEAD

PEAD Indoor Horizontal-Ducted Heat Pump

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Model Family: PEAD
Purpose: Heat & Cool
Zone Capability: Single & Multi Zone
Efficiency SEER2: up to 21.1 SEER
Efficiency EER2: N/A
Efficiency HSPF2: up to 13.0 HSPF
Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
Matching Outdoor Unit: Multi-Zone: NAXMMX
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: N/A
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 5-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • INVERTER-driven compressor
  • Built-in condensate lift mechanism (up to 27-9/16
  • Static capability up to 0.60 in. wg
  • Option filter box with MERV-13 filters
  • Interlock with Lossnay
  • 2-stages of supplemental heat control
NAXFKS

NAXFKS Indoor Ductless Floor-Mounted Heat Pump

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Model Family: NAXFKS
Purpose: Heat & Cool
Zone Capability: Single & Multi Zone
Efficiency SEER2: Up to 28.2 SEER2
Efficiency EER2: N/A
Efficiency HSPF2: Up to 13 HSPF2
Matching Outdoor Unit: Single-Zone: NAXWST, NAXWPH,NAXWMT
Matching Outdoor Unit: Multi-Zone: NAXWST, NAXWPH,NAXWMT
Energy Star Rated: Energy Star Rated
Refrigerant Type: R-410A
Number of Fan Speeds: N/A
Sound Level: Quiet operation
Wireless Remote: Yes
Factory Warranty Parts: 10-year limited warranty on compressor and functional parts.
Manufacturer's Stated Benefits:
  • Rapid heating
  • Operates with 25% less power than competing models
  • Recessing is an option
  • Available capacities in kBtu/h: 09, 12, 15, 18