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Improved air quality, better experience

Given the importance of indoor air quality in promoting a healthy environment for your occupants, as well as increasing government standards for buildings, LG has developed a full suite of air conditioning technologies designed to help private buildings meet the challenge.

According to the Environmental Protection Agency

Indoor air quality (IAQ) problems are not limited to homes. In fact, many office buildings have significant air pollution sources. Some of these buildings may be inadequately ventilated. For example, mechanical ventilation systems may not be designed or operated to provide adequate amounts of outdoor air. Finally, people generally have less control over the indoor environment in their offices than they do in their homes. As a result, there has been an increase in the incidence of reported health problems.1

Meet LG DOAS (Dedicated Outdoor Air System)

The LG Dedicated Outdoor Air System (DOAS) brings outdoor air inside a building and conditions it before ventilation, without sacrificing energy efficiency. DOAS is designed specifically to work with LG VRF systems and integrates with other VRF controls.

We also provide a variety of installation options depending on need and location requirements:

  • Rooftop DOAS Unit - Airflow rates up to 3000cfm and integral energy recovery wheel
  • Split Compact DOAS Unit - Airflow rates up to 2000cfm without a dedicated rooftop location
  • Split Rooftop Unit - Sizes 3 through 6 tons can replace existing conventional packaged rooftop units
LG DOAS unit
LG DOAS unit
And all of our DOAS units offer the following elements as part of their integration into your
building for better indoor air:
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Energy Efficient

LG is the only manufacturer in the market today with a double heat recovery coil which reduces the compressor load, uses less energy and saves money.
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Easy Installs & Control

LG DOAS has built-in Heat Recovery Units which require less labor to install, and the controls are accessible remotely offering convenient management when you are on the go.

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Cost Effective

The LG inverter compressor and double heat recovery coil effectively and vertically align VRF equipment, DOAS units, and controls in the building.

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Flexible

The Indoor split and Rooftop split DOAS units are designed specifically for use with LG Multi™ V outdoor units and integrate seamlessly with LG VRF controls.

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Eco-Friendly

LG DOAS units offer owners and designers an alternative to oil or gas and provide a solution where fossil fuel is not supported.

1Increased comfort
with outdoor air

LG’s DOAS units can provide cooled or
heated conditioned outdoor air before it gets
to the designated room so that you can avoid
HVAC-related temperature fluctuations within
the building. This leads to a more consistent
temperature throughout the entire
structure based on settings.

2Flexibility of placement

Depending on your building’s configuration,
LG has a DOAS unit that can fit your needs:
  • Our Rooftop unit is for larger roof spaces and provides the most fresh air per CFM in our lineup.
  • The Split Rooftop unit offers competitive performance with heat pump heat which is ideal for areas where gas heat is not an option.
  • The Split Compact unit is for buildings where a roof installation isn’t an option. This is ideal for retrofit projects based on needs.

3Create an entire system

When paired with LG’s MultiTM VTM 5 VRF unit, our DOAS units reach a whole new level of efficiency. You can reduce long air duct runs and fan size by distributing the DOAS units in various places. You can also condition up to 100% of the air for ventilation and operate each unit for different conditions.
Illustrated cross-section of a multi-use facility, showing living, recreation and exercise areas
When you choose LG Dedicated Outdoor Air Systems, you’re getting quality and peace of mind. Whether you’re providing comfort for offices, schools, hospitality, healthcare, or multi-family projects, LG DOAS units are your preferred choice.

1. Source: The Inside Story: A Guide to Indoor Air Quality – Environmental Protection Agency, IAQ by Building Type: https://www.epa.gov/indoor-air-quality-iaq/indoor-air-quality-offices-and-other-large-buildings

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