Lennox International Inc PCO-12C, PCO-20C manual Indoor AIR Qualityiaq Methods, Source Reduction

PUREAIR™ AIR PURIFICATION SYSTEM

©2001 Lennox Industries, Inc.

Dallas, Texas USA

HOMEOWNERS IAQ GUIDE FOR PUREAIR™ MODELS PCO-12C, PCO-20C

GENERAL

The PureAir™ air purification system helps to signif- icantly reduce levels of airborne volatile organic compounds, cooking odors, common household odors, airborne dust particles and mold spores, and pollen in residential spaces. The PureAir™ air purification system includes a MERV 9 Pleated Filter, UVA lamps, and a Metal Insert that is coated with a titanium dioxide catalyst. As air enters the system, a percentage of airborne particles and bioaerosols, such as mold and bacteria, larger than

.3 microns are captured by the pleated filter. The smaller airborne particles, odors, and chemicals continue through the system. The UVA lamp acti- vates the catalyst on the Metal Insert. The catalyst combines with water vapor in the air to form hydroxyl radicals that destroy a percentage of the remaining odors and chemicals.

The PureAir™ air purification system is NOT intended to be used for remediation of active mold growth or high (industrial) levels of chemi- cals in the air. For existing mold growth, the mold must be remediated by a qualified service provider PRIOR to installation of your PureAir™ air purification system.

NOTE: If there is a sudden source of contamination in your home [caused by burned food, cleaning an oven, painting or hobby work that releases chemi- cals (model airplanes, soldering, furniture finishing, etc.)], the PureAir™ air purification system WILL NOT reduce the odor immediately. In cases of sud- den source contamination, open windows and doors to rapidly reduce the concentration of the contaminant.

INDOOR AIR QUALITY(IAQ) METHODS

Optimal indoor air quality can be obtained in a home by using source reduction, ventilation, humidification, and purification methods.

SOURCE REDUCTION

Identify and remove or reduce the sources of poor indoor air quality in the home. Specific pollutants which may affect indoor air quality include:

Dirt & Dust: Prevent leakage of dirty air and dust from unconditioned spaces (i.e. attics) into the HVAC system by sealing the ducts with mastic or aluminum tape along all joints. Use a vacuum cleaner equipped with a HEPA filter to permanently remove small dirt particles rather than simply redis- tributing them, as is the case with a conventional vacuum cleaner.

Odors/Chemicals: Remove sources of odors and chemical contamination from the home and use products that minimize contaminate levels in the air. The new PureAir™ air purification system removes and destroys odors/chemicals.

Mold: Minimize mold by controlling moisture. Prevent roof and water pipe leaks and it is recom- mended that relative humidity be kept between 30%-50%. Contact a contractor if you have a water leak. Ask your Lennox dealer about products that reduce humidity levels in the home [variable speed air handlers/furnaces/compressors, humidity con- trols and dehumidifiers (85X74)].

Once the mold is removed by a qualified mold remediation company, the Healthy Climate™ PureAir™ air purification system [models PCO-12C (75X69) and PCO-20C(75X61)] will help to remove low level mold spores in the air.

Optional Healthy Climate™ Germicidal Lights [models UV-500 (46X85), UV-1000 (46X87) and UV- 2000 (46X89)] greatly reduce new mold growth on illuminated surfaces.

An accumulation of dirt and dust in the air ducts creates an ideal site for mold growth. To ensure optimal indoor air quality, non-porous insulation or externally insulated ducts should be used, particu- larly on the supply side (i.e. externally insulated metal plenums and ducts or, smooth-lined flex duct are preferred).

If your home has existing active mold growth, you may need to work with a company that specializes in mold remediation. Lennox is a sponsor of the Indoor Air Quality Association (IAQA). Contact the

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