American Aldes HRV 700SDD ALDES HRV 850DFD and, HRV 850DFD/850DDD, Heatrecoveryventilator

HRV 850DFD/850DDD

HEATRECOVERYVENTILATOR

PRODUCT

SPECIFICATIONS

AND ENGINEERING

INFORMATION

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SUBMITTAL DATA

		378-850-4-03
ALDES Model HRV 850DFD,		ALDES HRV 850DFD and
ery ventilator designed to exhaust
850DDD is a compact heat recov-		850DDD
from outdoors.	It is intended for
stale indoor air and supply fresh air		Heat Recovery Ventilator
applications, such as office build-
small commercial and institutional
ings, classrooms, dormitories, res-		PART NO: 850 DFD / 28 107
taurants, health clubs, etc.		850 DDD / 28 108
It is a technically advanced con-
trolled mechanical ventilation sys-
tem designed to meet the require-
ments of modern, tightly built and
highly insulated buildings. It pro-
vides 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 sum-
mer it also reduces the load on the
air conditioner by lowering the tem-
perature of the fresh outdoor air.
(For southern climates, where air
conditioning costs are the major
concern, it can be provided with an
enthalpy core, on special order, to
reduce the humidity of the fresh air
as well as lower the temperature.)
The system provides an economi-
cal solution for excessive indoor
humidity, odors,	stuffiness, and
other indoor air pollutants.
As the two air streams pass through
the HRV, they are separated by thin		GENERAL FEATURES
plates of aluminum in the core. The
		Thermally conductive aluminum heat exchange core, cross-flow design,
air streams do not mix, so there is
no recontamination of the fresh air		easily removed for cleaning or service.
by stale air. Heat passes through		Two efficient three speed PSC motors drive dual centrifugal blowers. 120
the thermally conductive aluminum		V. 3.95 Amps each (7.9 Amps total on high speed), 1/4 HP, 1625 RPM, 848
from the warmer air stream to the		Watts (total) on high speed
colder air stream, recovering most		Washable filters on each air stream protect the core. Easy to access and
of the energy otherwise lost to the
		clean.
outdoors.
		Defrost: Model 850DFD Interrupts supply air while exhaust air defrosts
Equally important to providing air		core.
		Model 850DDD Recirculating defrost. Internal damper closes
change from outdoors to indoors is
		fresh air intake and draws indoor air through heat exchange
a means of distributing the fresh air
		cores.
to all parts of the building, through a
		Both models: Defrost light indicates when defrost cycle operates
ducting system. Often, the ducting
		(at temperatures below 27 °F (-3 °C).
of a central forced air system can		Installation accessories and controls make installation simple.
be used.