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Other Accessories
PRODUCT INFORMATION FOR UNITS, OPTIONS & ACCESSORIES
Today’s HVAC systems have the ability to incorporate many options and accessories which improve comfort, indoor
air quality and add convenience. Of course, not all homeowners select or need the options listed below. However,
if you are looking for the ultimate HVAC comfort solution, consider these options and contact your dealer for more
information.
Ultraviolet Lights
Special fixtures containing ultraviolet lights can be installed in your system. These lights help to purify the air by
killing or sterilizing airborne surface microorganisms including bacteria, germs, mold spores, pollens and some vi-
ruses. Although the use of these lights results in cleaner air, they do not physically remove any contaminants-- you’ll
still need a filter. Ultraviolet lights have been used for many years in hospitals to help clean the air and reduce the
spread of germs. In addition to the health benefits offered with this technology, equipment efficiency can be im-
proved by the fact that the air coil is kept cleaner. These components consume about as much energy as a 75 watt
light bulb. The bulbs last for about a year and are easy to change.
Note: The use of ultraviolet lights with a WaterFurnace unit can be harmful to the protective coating on the
air coil, the drain pan and wiring, and therefore is not recommended and may void your warranty.
HEPA Filters
For the ultimate in air filtration, HEPA (High Efficiency Particle Arrestor) filter systems may be installed with your
unit. HEPA filters typically capture at least 99.97% of 0.3 micron particles (or larger). True HEPA filters must meet
efficiency ratings of the American Society of Heating, Refrigeration and Air-Conditioning Standard 52.2-1999. Some
manufacturers market “HEPA” filters that may not technically meet the standard. Many true HEPA systems include a
pre-filter for larger particles, a carbon-odor filter, and the actual HEPA media. Because of the amount of resistance
the air encounters through this filter, the HEPA device has a powered blower which assists the air flow through the
filter. No maintenance is required other than periodic filter media replacement.
Heat Recovery Ventilators
HRVs (Heat Recovery Ventilators) and ERVs (Energy Recovery Ventilators) are an option for mechanically-con-
trolled introduction of fresh air into the home. These devices consist of two blowers—one blowing fresh air into
the home from the outside, and one blowing “stale” air from the home to the outside. The two air streams do not
mix. However, a heat transfer core transfers the temperature (hot or cold) from the outgoing air to the incoming air,
retaining most of the energy used to heat or cool the home. A portion of the energy (in heated or cooled air) is not
recovered by the device and is “lost” outdoors. Therefore, HRVs and ERVs may slightly increase operating costs,
but the resulting benefit is “fresh air”. These devices are particularly beneficial for very tightly-constructed homes or
for homes with smokers. HRVs are generally used in cooler climates. ERVs are generally used for warmer climates.
Remote Access Controllers
With continually advancing communication technologies, some manufacturers are now offering the ability to access
or monitor your HVAC system from a remote location using devices known as Remote Access Controllers. There
are two main benefits to this technology. These systems have the ability to automatically call a designated number
(or your HVAC contractor) if the unit malfunctions. The other benefit is the ability to adjust your temperature settings
over the phone. This is particularly beneficial for vacation homes. Remote access controllers require a phone line
connection.