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HRV 700SDD/700SFD
HEAT RECOVERY VENTILATOR
PRODUCT
SPECIFICATIONS
AND ENGINEERING
INFORMATION
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SUBMITTAL DATA
496 - 4-03
ALDES HRV 700SDD and
700SFD
Heat Recovery Ventilator
GENERAL FEATURES
Thermally conductive aluminum heat exchange core, cross-
flow design, easily removed for cleaning or service.
Insulated 20 gauge powder coated galvanized steel cabinet.
Direct drive centrifugal forward curve blowers, Multi-speed
providing 400 to 650 cfm. one in each air stream.
Two efficient three speed PSC double shafted motors 120 V,
2.75 Amps each (5.5 Amps total on high speed),
1 ph. 1/10 HP, 1625 RPM. Watts - total on high speed - 648.
Washable filters, one in each air stream protect the core. Easy
to access and clean.
Installation accessories and controls make installation simple.
ALDES Model HRV 700SFD or
700SDD is a compact heat recov-
ery ventilator designed to exhaust
stale indoor air and supply fresh air
from outdoors. It is intended for
small commercial and institutional
applications, such as office build-
ings, classrooms, dormitories, res-
taurants, health clubs, etc.
It is a technically advanced con-
trolled mechanical ventilation sys-
tem to meet the requirements of
modern, tightly built and highly in-
sulated buildings. It provides a
consistent supply of fresh air while
lowering heating costs during the
winter by transferring heat from the
exhaust air to the fresh air stream.
During the summer it also reduces
the load on the air conditioner by
lowering the temperature of the
fresh outdoor air. The system pro-
vides an economical solution for
excessive indoor humidity, odors,
stuffiness, and other indoor air pol-
lutants.
As the two air streams pass through
the HRV, they are separated by thin
plates of aluminum in the core. The
air streams do not mix, so there is
no recontamination of the fresh air
by stale air. Heat passes through
the thermally conductive aluminum
from the warmer air stream to the
colder air stream, recovering most
of the energy otherwise lost to the
outdoors.
PART NO. 700SFD / 28 105
700SDD / 28 106
temperatures rise above 23 °F.
The Model 700SDD blocks out-
side air during defrost and draws
indoor air through the supply (with
the same temperature and defrost
time schedule as the fan defrost
system).
The Model 700 is available with two
defrost options. The Model 700SFD
begins the defrost cycle at tempera-
tures below 23 °F (-5 °C) by shutting
off the supply fan for 4-1/2 minutes,
then resumes normal operation for
17 minutes, repeating the cycle until
Optional Damper Defrost
on Model 700 SDD