aldes H/E280 - Introduction; General Hrv;Erv Terminology & Function; Definitions; How Heat & Energy Recovery Ventilators Work

Residential HRV/ERV
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I. INTRODUCTION
Thank you for purchasing this Aldes ventilation product. To receive the full benet of your
investment, we recommend that you read and retain this operating manual for future
reference.
II. GENERAL HRV/ERV TERMINOLOGY AND FUNCTION
Denitions
HRV (Heat Recovery Ventilator): A ventilation device consisting of two fans and a heat re-
covery module to provide exhaust of stale indoor air, plus a balanced supply of fresh air,
without mixing the two airstreams.
ERV (Energy Recovery Ventilator): This device is similar to the HRV, but diers only in that
the core also transfers humidity from the more humid air stream to the less humid air stream.
How Heat & Energy Recovery Ventilators Work
In the heating season, Aldes Heat Recovery Ventilators (HRV) and Energy Recovery
Ventilators (ERV) draw in fresh air from outside. This air is distributed throughout the home
by a dedicated-duct system or through the forced-air heating/air conditioning system. At
the same time, vents located in moisture- and pollutant-producing rooms (e.g., kitchens,
bathrooms, laundry rooms) exhaust an equal amount of stale, humid air to the outside.
Sometimes air is drawn directly from the return air of a forced-air heating/air conditioning
system.
As the two airstreams pass each other in the unit’s core, the fresh air is tempered with heat
recovered from the exhaust air. An ERV will also transfer moisture to the fresh air if this air is
drier than the exhaust air, improving comfort in overly dry homes.
Stale Air
from Inside
Stale Air to
Outside
Fresh Air from
Outside
Fresh Air
to Inside