CERTIFIED RATINGS
Due to continuing product development, specifications are subject to change without notice
EV130_200_300Man_Mar13.docx
134777_012
Revised 03/2013
2013 RenewAire LLC
Page 9
Purpose of your Energy Recovery Ventilation (ERV) System
(continued from page 12)
How much ventilation is right for you?
Different households require different rates of ventilation,
depending on the pollutants found in each home.
1. Provide a daily average of 0.35 Air changes per hour (ACH) for
your entire home. A
percentage timer
is the primary operating
control that allows you to reliably achieve this ventilation rate.
According to the American Society of Heating, Refrigeration and
Air-Conditioning Engineers (ASHRAE), this ventilation rate will
provide good air quality in most homes for most people.
At this rate, you will be changing the air in your home over eight
times per day. Most ERV systems are generally designed to
provide at least this ventilation rate.
Be sure to provide at least 15 CFM per person in the home. In
small homes this may mean more than nine air changes per day.
Use your judgment:
These guidelines are a starting point. As long as the pollutants
you are concerned with are detectable (like water vapor or
odors) your nose can be a good guide, and you may find that
fewer hours of operation will be sufficient.
For households with smokers:
Smokers will need at least double the usual ventilation rate to
satisfy non-smokers in the same household.
WARNING
There is no known safe level of cigarette smoke.
Any ventilation system may provide noticeable
improvement in spaces where cigarettes are
smoked, but it cannot be expected to protect
against the severe long-term health hazards of
exposure to cigarette smoke.
