5
Today's modern, tight buildings require fresh outdoor air to
maintain a healthy indoor air environment. The amount of
ventilation you require in the building will depend upon:
•
The number of occupants and their activity levels
•
The way the building was built
•
Your personal preferences for fresh air
The HRV introduces fresh air to the building while recovering
energy from the air it exhausts. Specifically, an HRV that is
properly installed, operated and maintained will:
•
exhaust stale, contaminated air
•
recover the majority of the energy from the
exhausted stale air
•
use the recovered energy to preheat or precool outside
air that is drawn into the building
•
distribute the fresh air throughout the building
HOW
MUCH
VENTILATION
DO
I
NEED?
During seasons when your windows and doors are closed
(winter, and summer if air conditioned), the HRV should be
set to operate continuously on low speed with the option of
going to high speed as the need arises. For example, if you
are entertaining and there is a large number of people
present, the unit should be switched temporarily to high
speed.
You may wish to use an intermittent operational mode if
the building is unoccupied (20 minutes ON / 40 minutes
OFF or 10 minutes ON / 50 minutes OFF for even less
ventilation).
Controlling
Your
HRV
Glossary
DEFROST MODE
- to ensure reliable operation during
cold weather, the HRV will automatically cycle through its
defrost mode as needed.
DEHUMIDISTAT
- a control device that senses the
amount of moisture in the air and activates high speed
ventilation when the air moisture level in the home
exceeds the set point.
RECIRCULATION
- Recirculates existing household air
without introducing fresh air.
RESET
- whenever resetting of the HRV is required,
disconnect power for 30 seconds. The Self Test will occur
when the HRV is re reconnected.
SELF TEST
- each time the HRV is powered/energized
the self test function will automatically initiate. During the
self test the HRV will cycle through all the speeds
available (1-5), test the damper motor operation and will
default back to the previous operational mode and speed
selection. Total self test duration is approximately 90
seconds.
STANDBY MODE
- the HRV is powered/energized and
waiting for fan operation to be initiated. For example, the
HRV is set a Continuous Ventilation Operational Mode at
Speed 0.
THERMISTOR
- the HRV's temperature sensor which
measures electrical resistance in a known manner, as
outdoor temperatures fluctuate.
VENTIALTION
- Operational mode that introduces fresh
outdoor air to the home or building.
