Specification Sheet

77
Fresh
Air In
Stale Air
OutHRV
Fresh Air is supplied
to bedrooms and
living rooms
Stale/humid air is
exhausted from
baths and kitchen
The Best System:
Independent System
The Better System:
Exhaust at the source
and supply in the return
The Good System:
Exhaust and supply
in the return
S&P’s HRV System
• Duotrol
TM
Systems: Selects ventilation modes (OFF, CONT or INTER), also to
adjust the continuous airow rates: Increasing (+)/Decreasing (-).
• Motors(2): Designed with high performance and reliability, they are
maintenance free for comfort and peace of mind.
• Synthetic Filters: Capture the largest particle & protects the heat recovery core from potential
obstruction by these particles.
• Heat Recovery Core: A polypropylene cross-ow type it is designed to transfer the heat
between both exhaust & supply air streams without allowing any contamination or mixing of
both air streams to maximize the efcient and improve indoor air quality.
• Condensate Drain Pan & Drainage Hose: Captures the water that accumulates during the
heat transfer and defrosts sequence in the fall, winter & early spring seasons. Drain hose is
connected to the drain pan and serves as drainage for the accumulation of water. It is normal
during summer months to nd no condensation in drain pan or in drainage hose.
• Automatic Defrost Sequence: The defrost sequence is electronically controlled to measure
the incoming outdoor air temperature, the sequence is activated at -5°C (23°F) and colder
and the duration is for 5 minutes then returns to normal operation for 25 minutes. This system
eliminates that the heat recovery core doesn’t build with ice or freezes.
• Defrost sequence: Supply fan shuts down, the exhaust fan speed increases pending the
measured outside temperature.
Types of Installation
The HR Series can be installed as independent systems that use independent ductwork or they
can be connected to the existing duct of the forced air heating or cooling system. The “Best” and
“Better” systems meet the ASHRAE 62.2 Whole Building requirement when using an S&P HR con-
trol (see pg 18).
Fresh Air is supplied
to bedrooms and
living rooms through
the furnace
Stale/humid air is
exhausted from
baths and kitchen
HRV
Fresh
Air In
Stale Air
Out
Fresh
Air In
Stale Air
Out
Bathroom fans are required for point
source exhaust. S&P’s TD Mixvent
inline fan makes the perfect choice.
Fresh Air is supplied
to bedrooms and
living rooms through
the furnace
Stale/humid air is
exhausted from baths
and kitchen through
the furnace
HRV
MODEL HR
HEAT RECOVERY VENTILATORS