Page 1
Residential Make Up Air System
MA7, MA8 & MA10
Installation Instructions
&
Warranty Information
425 Apollo Street
Brea, CA 92821
www.imperialhoods.com
(800) 851-4192
DO NOT THROW AWAY,
PROPERTY OF THE HOME OWNER!
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Imperial Cal Products, Inc.
PROPERTY OF HOME OWNER,
DO NOT THROW AWAY!
READ ALL INSTRUCTIONS PRIOR TO
INSTALLATION
FOR RESIDENTIAL USE ONLY
WARNING: To reduce the risk of fire, electrical shock
hazard, or injury to persons, observe the following:
1 Shut off and disconnect all power supply to unit (s)
prior to installation or service/repair of device.
2 Use this unit only in manner intended by
manufacturer.
3 All applications of device must follow all applicable
laws, codes, regulations and standards.
4 Installation of device must be completed by a certified
installation expert or HVAC professional.
5 For residential use only, any use beyond factory
recommendations voids all warranties.
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Technical Specifications
The recommended location for the Switch Assembly collar is in a straight duct run directly
above the kitchen exhaust fan motor. We suggest installation of Switch Assembly collar be no
higher than 24” above exhaust fan motor. If you are unable to install in a straight duct run, a
90 degree elbow may be required.
Low voltage wiring (A) from motorized fresh air damper is
connected directly to the 24V power transformer.
Low voltage wiring (B) from motorized fresh air damper is
connected to Switch Assembly.
Wire © is connected from Switch Assembly to 24V Power
Transformer.
Paddle is 3/4” L x
1-1/4” W and
activates at the
200-400 CFM
depending on
duct size.
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Technical Specifications Continued
Passive Air Flow Installation
The replenishment or
make-up air must be drawn
from the outside of the
home.
Outside fresh air inlet must
be installed on the exterior
of the house a minimum
distance of 10 ft. from combustion vents and other
exhaust openings. Locate
the fresh air inlet away from
any outside motor, generator, pump, BBQ grill,
hearth/fire pit, chemical
storage area, or any potentially hazardous exposure
areas.
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Air Handling Fan Direct Connect Installation
Using a revolutionary new method of installation, the MA7, MA8 & MA10 have the ability to connect
directly to the HVAC air circulation fan motor. This provides cleaner and healthier air by utilizing
the HVAC filtration system during operation of our residential make-up air system.
During operation of the kitchen range hood, the Switch Assembly will activate the air circulation fan
motor independently of the heating and cooling system to open a motorized damper allowing fresh
air to enter through the return air duct. The outside air will then pass through the furnace filter prior
to being distributed throughout the air supply system. When air is no longer being exhausted by the
kitchen range hood, the Switch Assembly will return to the “off” position. The installation method
will override or affect the normal function of the HVAC thermostat or corresponding components.
The HVAC system will heat and cool during operation of the make-up air system as needed by
measuring the internal air temperature of the home.
The 90 degree Elbow model can be attached directly to an outside wall, giving the installer or
HVAC contractor the ability to complete even the tightest installations. Elbow must be attached to
rigid ducting.
Elbow Switch Assembly (If necessary)
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Warranty Information
Imperial offers a limited 3 year, parts only, warranty for manufactured
products from the original date of purchase. Warranty does not cover labor,
removal of device, or installation of new device provided by manufacturer.
All warranties voided by misuse of product, use beyond manufacturer’s
recommendations, non-residential use, or negligence by contractor or
installer. Warranty only applies in the United States, any product sold or
used outside of the United States will not be covered under manufacturer’s
limited warranty.
Additional Items Excluded From Manufacturer’s Limited Warranty:
Cosmetic damages not reported or claimed within 48 hours of original
purchase.
Damage or failure resulting from accident, fire, flood, Acts of God,
improper installation or installation not in accordance to applicable
laws, codes, and regulations.
Any alteration or modification to original product or components
beyond stated manufacturer’s guidelines and recommendations.
For product assistance, please contact Imperial: 800-851-4192
*OPTIONS
90 Degree Elbow Transition available. Call with Duct Size.
Employee Owned
American Made
Since 1961
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