Aprilaire 8100 - Manual (Page 7)

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FIGURE 6
While maintaining pressure, push unit up against bracket,
remove right side pin, align hanging "hinge" hook with
bracket and reinsert hanging pin. Tighten both threaded
nuts securely. Do not plug in unit until installation is
completed. Carefully reinstall EnergyMax Transfer Core,
air filters and access door.
CAUTION: Do not mount the Energy Recovery Ventilator to ceiling "I" beam wood trusses.
To reduce the unit weight, remove the access door, filters and EnergyMax Transfer Core.
Lift only at the corners of the core to avoid damage.
For ceiling mounting, refer to the following Figures #7 through #10.
FIGURE 7
SEQUENCE FOR MOUNTING THE APRILAIRE ®
ENERGY RECOVERY VENTILATOR TO CEILING
Mounting bracket (furnished) is pre-drilled for fastening to
standard 16" O.C. or 24" O.C. ceiling joists using lag bolts
(furnished).
GENERAL INFORMATION
OPERATION
The Aprilaire ® Energy Recovery Ventilator is designed to
work in conjunction with the home’s forced air system, or
totally independent, incorporating its own duct system to
provide the homeowner with 1) a supply of fresh air
distributed into the living space and 2) to exhaust stale air
from the home to the outdoors through the EnergyMax
®
Transfer Core. It is designed to handle homes with up to
3,600 ft
2 living space.
During the winter season, the cross flow design of the
EnergyMax
® Transfer Core allows the incoming cold fresh
outside air to be preheated by the warm stale air being
exhausted, reducing the energy required to heat the
incoming fresh air.
During the air conditioning season the Aprilaire Energy
Recovery Ventilator operates with a reverse effect. Cool
stale air, exhausted from the house, cools the incoming
warm fresh air. It also removes moisture from the incoming
fresh air to the home.
PROCEDURE AND EQUIPMENT REQUIRED
Read the installation instructions carefully to become
familiar with the requirements and refer to the proper
section of the instructions if any installation question
arises.
The Aprilaire Energy Recovery Ventilator is preassembled
and ready to install. See Figure 2 to become familiar with
all components and inspect unit and box containing all
mounting hardware to be sure all components are
included.
The following equipment will be needed and is detailed
throughout the manual.
Mounting – A mounting system is provided with the unit,
which requires 1/4" x 3" lag bolts (furnished) for
wood mounting and lag bolt anchors (not furnished)
for concrete mounting.
Ducting – All ducting must be 6" round or equivalent and
two balancing dampers must be installed. You must
also plan on temporarily installing two air flow
measuring devices according to balancing instructions
found on Page 15. These measuring devices are
later removed after the system has been installed
and balanced. Use galvanized uninsulated ducting
(not furnished) between the Aprilaire Energy
Recovery Ventilator and home interior. Use insulated
ducting between the Aprilaire
® and the outdoors or
duct runs through any unheated space. (Dampers
and air flow measuring devices not furnished.)
Duct Hanging – Duct tape, sheet metal screws, nylon
straps and duct hangers will also be needed to properly
hang, connect and seal ductwork (not furnished).
Balancing – Two balancing dampers designed to fit the
ductwork must be installed. See instructions page 15
(not furnished).
Collar – When connecting directly to furnace return duct-
work, a collar will be needed.
Return Grille – At least one return grille located in the
living space with a minimum of 75 square inches free
area will be required.
Hoods – Two outdoor hoods with cleanable screens and
caulk to seal them.
Sound Absorber – One 6' long sound absorber duct
section is required in the stale air return duct from
the house between the house and unit.
Supply Grilles – If the installation is in a home without
forced air heating, it is recommended that no more
than 3 fresh air supply ducts be used to assure
adequate air flow. The total free area should not be
less than 75 square inches. Use of less than the
minimum free area may result in greater than normal
air movement noise. Three supply ducts require a
minimum of 25 square inches of free area each; two
supply ducts 40 square inches and one supply duct
75 square inches of free area.
Electrical – The Aprilaire Energy Recovery Ventilator is
pre-wired from the factory. The preferred installation
of the unit should be within 30" of an electrical outlet.