Unico System Geothermal Ducted Heating & Cooling Efficiency and Comfort

Direct Energy uses the renown Unico Mini-Duct System (see illustrations below) to supply high quality heating and cooling. This allows homeowners to enjoy the greatest comfort whilst using a renewable energy source.

Quiet Operation and Hidden Ducting

The Unico System’s Air supply ducting is lined with sound attenuating material to assure quiet operation, so comfort is felt but air movement is not heard. The fully enclosed and insulated geothermal system can be located outside or in a basement, utility room or garage so that no component of the system interferes with the quiet living space.

UnicoSystem – Ducted Heating & Cooling

Unico System’s unique cooling method removes 30% more moisture from the air than traditional forced air systems. It draws, rather than pushes, air directly over the evaporator coils, creating colder temperatures than conventional systems. This means that even in the warmest, most humid months the air in your house or office will be dryer, more comfortable.

In colder times and climates, the Unico System delivers comfortable hot air in one of two ways – using either a hot water coil or a true-hot-air heat pump coil – never the scorched air method used by most conventional forced-air systems. Perfect comfort all year-round.

  • Better Performance
    Even temperatures in any house or office. Eliminates drafts. Flexible tubing also absorbs sounds.
  • Better Efficiency
    Removes 30% more moisture than conventional systems in cooling mode. More comfortable for you, your family and your business.
  • Matches any Dècor Outlets are small and subtle and can be painted, wallpapered or stained to blend with any dècor.

In existing structures, 2″ (ID) flexible supply ducting can be routed through existing joists in the ceiling, floor or wall cavity, thus eliminating the need for large duct space.

Conventional vs Unico Ducted Heating Systems

unico

Combining Unico with Direct Energy

  • Up to 75% energy saving due to reduced energy consumption
  • Direct Energy offers the most energy efficient means of heating and cooling buildings in most areas. Transferring renewable energy reduces cooling costs an average of 30% as compared to a 10 SEER air conditioner, and heating costs by 75% as compared to electric heat.
  • Reduced emission of greenhouse gases
  • Drawing heat from the earth itself, the Direct Energy EarthLinked® system delivers renewable geothermal energy with higher efficiency than any other powered water or associated heating system. The U.S. Environmental Protection Agency has rated it the most environmentally clean and efficient conditioning system.
  • Read the full EPA report here.
  • Combined heating and cooling system
  • Reliable and renewable energy
  • The constant earth heat source is always available and is not dependent upon sunlight hours or temperature climate due to the stable temperature of the earth. It can therefore provide reliable heating and cooling.

Why High Velocity Mini-Duct Systems?

High velocity air conditioning and heating systems are the most efficient way to retrofit buildings where:

  • no central air conditioning duct work exists;
  • unobtrusive ductwork and outlets are desirable to preserve architectural design integrity;
  • supplemental cooling or heating is needed for an inadequate existing system; or
  • conventional large ducting simply will not fit without major remodeling.

General Information

Bulletin 10-30 10 Questions (PDF 56KB) – February 2003

Engineering Specifications

Bulletin 20-11 Modular Specification (M2430, M3642, M4860) (PDF 436KB) – September 2007
Bulletin 20-15 System Component Specifications (accessories) (PDF 530KB) – May 2007

Bulletin 20-18 Fan-coil Specification (M1218) (PDF 306KB) – September 2007
Bulletin 20-20.1 Blower Module Specification (PDF 178KB) – October 2007
Bulletin 20-20.2 Refrigerant Coil Module (PDF 1.1MB) – June 2007
Bulletin 20-20.3 Chilled Water Coil Module (PDF 1.17MB) – March 2007
Bulletin 20-20.4 Heating Module (with hot water coil specs) (PDF 198KB) – June 2007
Bulletin 20-20.5 Vertical Plenum Module (PDF 636KB) – October 2007
Bulletin 20-20.6 Return Plenum Module (PDF 117KB) – May 2006
Bulletin 20-20.7 Adapter, Supply Plenum (PDF 792KB) – December 2002

Bulletin 20-25 Electric Duct Furnace (PDF 405KB) – June 2007
Bulletin 20-30 Unichiller RC Specifications (PDF 343KB) – October 2007
Bulletin 20-34 Return Air Adapters (PDF 164KB) – May 2007
Bulletin 20-40 Blower Curves (PDF 142KB) – May 2006
Bulletin 20-54 Aluminum Tubing Supply (PDF 167KB) – May 2007
Bulletin 20-55 Sound Attenuator (PDF 1.3MB) – April 2006
Bulletin 20-56 Outlet Kits (PDF 244KB) – March 2005
Bulletin 20-58 Slotted Outlet Plenum Takeoff Kit (PDF 202KB) – July 2006
Bulletin 20-60 Rigid Sound Attenuator (PDF 200KB) – June 1999

Bulletin 20-65 Round Outlets (PDF 820KB) – May 2004
Bulletin 20-70 Slotted Outlet (PDF 688KB) – February 2004
Bulletin 20-80 Plaster Frame Kit (PDF 48KB) – June 1999
Bulletin 20-81 Outlet Screens (PDF 132KB) – March 2005
Bulletin 20-83 Condensate U-Trap (PDF 692KB) – May 2005
Bulletin 20-085 Heat Pump Mild Weather Control Kit (PDF 45KB) – August 2006
Bulletin 20-086 UniChiller RC Low Ambient Control Kit (PDF 150KB) – February 2007
Bulletin 20-100 Sample Specification (PDF 112KB) – June 2005

Installation and Maintenance Instructions

Bulletin 30-01 Installation Guide (PDF 236KB) – June 2004
Bulletin 30-02 10 Percent Rule (chart) (PDF 76KB) – June 2004
Bulletin 30-05 General Installation Instructions (PDF 303KB) – May 2007
Bulletin 30-10 M1218 Installation (PDF 405KB) – June 2007
Bulletin 30-20 M2430/M3642/M4860 Modular Unit Installation (PDF 1.46MB) – May 2007
Bulletin 30-24 Heat Pump Installation (PDF 604KB) – December 2002
Bulletin 30-30 Hot Water Coil Installation (PDF 514KB) - October 2007

Bulletin 30-32 Unichiller RC Installation (PDF 932KB) – May 2007
Bulletin 30-34 Electric Furnaces (PDF 239KB) – June 2007
Bulletin 30-38 Advanced Control Board Installation Instructions (PDF 2.2MB) – May 2008
Bulletin 30-40 Fiberglass Plenum Installation (PDF 344KB) – July 2004
Bulletin 30-45 Metal Plenum Installation (PDF 136KB) – June 2003
Bulletin 30-50 Plenum Take-off (PDF 1.4MB) – April 2006
Bulletin 30-52 Outlet Balancing Orifice (PDF 104KB) – September 2000
Bulletin 30-55 Supply Tubing and Sound Attenuator (PDF 191KB) – May 2007
Bulletin 30-61 Rigid Sound Attenuator (PDF 716KB) – May 2003

Bulletin 30-63 Clamps (PDF 76KB) – June 1999
Bulletin 30-100 Field Service Report Form (PDF 136KB) – June 2003
Bulletin 30-101 UniChiller RC Service Report (PDF 31KB) – April 2006
Bulletin 30-110 Layout & Design Online Worksheet

Application and Sizing Instruction

Bulletin 40-01 Application List (PDF 116KB) – February 2001
Bulletin 40-10 Quik-Sizer (PDF 96KB) – February 2001

Bulletin 40-30 Component Layout (PDF 355KB) – May 2007
Bulletin 40-40 System Sizing and Layout (PDF 868KB) – October 2003
Bulletin 40-50 Manual J Form (PDF 76KB) – June 1999
Bulletin 40-60 Unichiller RC Design Manual (PDF 680KB) – October 2004

Technical Notes

Tech Note 102 Duct Condensation (PDF 140KB) – June 2003
Tech Note 103 High Altitude Applications (PDF 160KB) – March 2005
Tech Note 104 Unico Energy Guide (PDF 252KB) – March 2005

Tech Note 105 Providing Outside Air (PDF 240KB) – March 2000
Tech Note 106 Return Duct System Design Requirements (PDF 35KB) – June 2007
Tech Note 108 Thermal Expansion Clean Out Procedure (PDF 300KB) – June 1999
Tech Note 109 Humidification for Unico Heating Systems (PDF 65KB) – August 2007
Tech Note 110 Zoning the Unico System (PDF 48KB) – June 1999
Tech Note 111 Spot Cooling (PDF 304KB) – June 1999
Tech Note 112 Disinfection of Potable Water (PDF 36KB) – June 1999
Tech Note 113 How to Measure Outlet Airflow (PDF 892KB) – March 2004
Tech Note 114 Expansion Valve Troubleshooting (PDF 104KB) – October 2007

Tech Note 115 Air Filters, Electronic, etc. (PDF 148KB) – July 2004
Tech Note 117 Vertical Installation Kit, UPC-63/64 (PDF 176KB) – March 2005

Additional Information

Bulletin 60-10 Warranty Announcement (PDF 64KB) – July 2001
Bulletin 60-11 Warranty (UniChiller RC) (PDF 104KB) – December 2004
Bulletin 60-20 Return Authorization Form (PDF 532KB) – February 2003
MK-041 Warranty Form (PDF 20KB) – July 1999