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

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 DZO Mechanical, Inc. 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 (484) 454-3346.

Ductless High Wall Indoor Heat Pumps

Evolution® Indoor Ductless High Wall Unit

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Model Family: 619PHB
Purpose: Heat & Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER/SEER2: Dependent upon outdoor unit pairing
Efficiency EER/EER2: Dependent upon outdoor unit pairing
Efficiency HSPF/HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MARB
Matching Outdoor Unit: Multi-Zone: 38MGRB
Energy Star Rated: ENERGY STAR® certified
Refrigerant Type: Puron®
Number of Fan Speeds: Fully modulating fan speeds
Sound Level: 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:
  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

Preferred™ High Wall Indoor Unit

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Model Family: 619AHB
Purpose: Heat and Cool
Zone Capability: Single zone
Efficiency SEER/SEER2: Dependent upon outdoor unit pairing
Efficiency EER/EER2: Dependent upon outdoor unit pairing
Efficiency HSPF/HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MARB
Matching Outdoor Unit: Multi-Zone: 38MGRB
Energy Star Rated: Select systems with ENERGY STAR® certification
Refrigerant Type: Puron
Number of Fan Speeds: 4
Sound Level: As low as 24 dB(A)
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

Legacy™ Line High Wall Indoor Unit

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Model Family: 40MHHAQ
Purpose: Heat & Cool
Zone Capability: Single Zone and Multizone
Efficiency SEER/SEER2: Dependent upon outdoor unit pairing
Efficiency EER/EER2: Dependent upon outdoor unit pairing
Efficiency HSPF/HSPF2: Dependent upon outdoor unit pairing
Matching Outdoor Unit: Single-Zone: 38MHRQ
Matching Outdoor Unit: Multi-Zone: N/A
Energy Star Rated: No
Refrigerant Type: R-410A
Number of Fan Speeds: Four fan speeds
Sound Level: As low as 27 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