Best MD8T Manual de Usario

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MODELS MD6T • MD8T • MD10T
Page 1
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR
INJURY TO PERSONS, OBSERVE THE FOLLOWING:
1. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction codes and standards.
2. Do not use the unit in conjunction with any exhaust device other
than compatible BEST, Broan Elite or Broan range hoods.
3. This unit is not designed to provide combustion air for fuel-
burning appliances.
4. Do not connect the unit directly to a combustion appliance of
any type.
5. Sufficient air is needed for proper combustion and exhausting
of gases through the flue (chimney) of fuel burning equipment
to prevent backdrafting. Follow the heating equipment
manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA),
and the American Society for Heating, Refrigeration and
Air Conditioning Engineers (ASHRAE), and the local code
authorities.
6. Before servicing or cleaning unit, switch power off at service
panel and lock the service disconnecting means to prevent
power from being switched on accidentally. When the service
disconnecting means cannot be locked, securely fasten a
prominent warning device, such as a tag, to the service panel.
7. When performing installation, servicing or cleaning the unit, it is
recommended to wear safety glasses and gloves.
8. During extreme weather events including snow storms, ensure
that the intake area for the outside air duct is not blocked and
able to provide a clear pathway for outside air to enter the
system.
9. When cutting or drilling into wall or ceiling, do not damage
electrical wiring or other hidden utilities.
10. When notching or drilling into framing including floor supports,
rim joists, and wall studs, comply with code and manufacturer
limitations on allowable modifications to these structural
members.
11. This unit is intended to be installed within the home in a location
protected from moisture.
12. This unit must be in an accessible location which allows for
inspection of the unit.
13. Use this unit only in the manner intended by the manufacturer.
If you have questions, contact the manufacturer at the address
or telephone number listed in this document.
14. When federal, provincial or state legislation comprises more
restrictive installation and/or certification requirements, the
aforementioned requirements prevail on those of this document
and the installer agrees to conform to these at his own expense.
AUTOMATIC
MAKE-UP AIR DAMPER
WITH TRANSFORMER
READ AND SAVE THESE INSTRUCTIONS
FOR RESIDENTIAL USE ONLY
CAUTION
1. Do not locate outside air inlet near hazardous materials or
explosives.
2. Unit shall not be installed to introduce air from crawlspaces,
garages, attics, adjacent dwelling units, or other locations within
the building shell. Unit shall be installed to introduce air directly
from outdoors.
3. Do not run the outside air duct directly above or closer than 2 ft to
any furnace or its supply plenum, boiler, or other heat producing
appliance.
4. Any ductwork used in conjunction with the Damper must be
installed in compliance with all local and national codes that are
applicable.
5. Do not operate the Damper for fresh air introduction until all system
filters, including the central duct system filter, have been installed
per the system design.
6. Please read the unit specification label on the product for further
information and requirements.
7. The Damper’s outdoor air intake, ducting, and any filters should be
inspected and maintained on a regular basis.
8. Insulate the duct and damper to prevent build-up of condensation
in cold weather climates. Vapor barriers on both sides of insulation
are recommended.
To register this product
visit: www.broan.com
MODELS MD6T • MD8T • MD10T
Page 2
OUTSIDE AIR INTAKE LOCATION
Proper design and location of the outside air intake location is critical in
ensuring that the Damper can safely and reliably provide an opening for
fresh air to enter the home. The following requirements for the location
of the outside air intake must be met:
• Outside air intake is located a minimum of 10’ from combustion ap-
pliance vents, chimneys, plumbing stacks, and bathroom or kitchen
exhaust vents. If local codes have more stringent separation re-
quirements, they shall apply.
TYPICAL INSTALLATIONS
Installations will vary according to the location in the home where the unit is installed and which model Damper is used. Use the following
illustrations and notes as guidance for your own installation. Always comply with local code requirements and in any instance where a detail
shown below conflicts with local code, the local code provision shall apply.
Damper connected to return side of central duct system.
• Outside air intake is placed high enough above grade to prevent
blockage from snow or other debris such as leaves, and at a mini-
mum of 1’ above grade.
• Make-up air damper should not draw air from crawlspaces, ga-
rages, attics, adjacent dwelling units, or any enclosed part of the
building. The Damper should be installed to draw air directly from
outdoors.
OUTSIDE AIR INTAKE OPENING PROTECTION
Because the Damper, together with the end cap and outside air duct
which are installed with it, will allow outdoor air into the indoor environ-
ment, it is important to meet the following requirements:
• Model 641FA (6”), 643FA (8”) and 610FA (10”) fresh air inlet wall
caps include protective bird screens to keep out animals and out-
side debris. Clean screens often and do not remove.
• If a protective bird screen other than the screen provided is used, it
must cover the entire opening of the outside air duct. This screen
must also have openings of at least ¼” but no larger than ½”.
• The outdoor air intake opening should meet local code provisions
for the protection of openings in exterior walls, including steps to
prevent moisture intrusion around the opening.
Note that the screen over the outside air opening is not a filter. It is
intended to prevent the intake of leaves, animals, or debris into the out-
side air duct. A downstream filter is necessary to remove pollen, dust,
and other airborne particles. Potential filter locations are shown below
in the Typical Installations section.
MINIMUM RETURN AIR TEMPERATURE REQUIREMENTS
HVAC equipment manufacturers may have minimum requirements for
the air temperature in the return air plenum. Introducing outdoor air to
the return side of the central duct system may impact this temperature.
The installer should adjust both the size of the outside air duct and the
location of its connection to the return side of the central duct system in
a manner so that minimum air temperature requirements are satisfied
under design conditions.
AIR HANDLER UNIT
AIR DISTRIBUTION FAN
THERMOSTAT
CENTRAL SYSTEM SUPPLY AIR
REGISTER BOX ADAPTED
WITH SLIDE-IN FILTER (optional)
AUTO. MAKE-UP AIR DAMPER
FIELD MEASUREMENT OF AVAILABLE
STATIC PRESSURE. (See “Install The
Damper” section on page 3 for damper
balancing instructions.)
FRESH AIR INLET WALL CAP
WITH BIRD SCREEN
INSULATED OUTSIDE
AIR DUCT (slope toward wall cap)
EXTERIOR WALL
VENTILATION AIR INTAKE
(locate away from pollutant sources)
CENTRAL SYSTEM RETURN AIR
CENTRAL DUCT SYSTEM FILTER
PLAN THE INSTALLATION
Planning the installation first requires selecting the most appropriate
installation approach. The chart below offers suggestions for the most
effective installation approach by considering a few important factors.
Further details on the two main types of installations are provided below.
Yes
•House has central duct work?
Yes
•Return-air side of duct work is
accessible -either the return-air trunk
or return- air plenum?
Damper connected to
return side of central
duct system
No
No
Damper ducted directly
to a ceiling, floor, or wall
register
MODELS MD6T • MD8T • MD10T
Page 3
Damper and outside air duct connected directly to a ceiling, floor, or wall register.
INTERIOR WALL
WALL
REGISTER
REGISTER BOX ADAPTED
WITH SLIDE-IN FILTER (optional)
MOTORIZED DAMPER
WALL CAP WITH
BIRD SCREEN
INSULATED OUTSIDE
AIR DUCT (slope toward wall cap)
EXTERIOR WALL
VENTILATION AIR INTAKE
(locate away from pollutant sources)
INSTALL THE DAMPER
OUTSIDE AIR
TO CENTRAL SYSTEM
RETURN AIR OR INTERIOR
WALL REGISTER
DAMPER FLAP (Install in
vertical position shown.)
AIR FLOW AIR FLOW
SET SCREW
WHT WHT
120 VAC
60 HZ
BLK
BLK
BLK
WHT
ORG
24V
WHT
BLK
MAKE-UP AIR
DAMPER
24V
TRANSFORMER
(included) HOOD
GRD
MODEL E60000 SERIES & E64000 SERIES
MAKE-UP AIR DAMPER CONNECTION
(switched high voltage)
Install the damper as shown. Make sure damper flap is in a vertical
position when closed and power is off. The set screw can be used
to adjust the damper opening - thereby balancing the inside and
outside air pressure when the range hood exhausts at high speed.
Wire the system as shown.
20 GAUGE BELL WIRE FOR
LOW VOLTAGE CONNECTION
ON BACK OF HOOD
MODEL EW56, EW58, EI59,
QP3, QP4, P195P & WTT32I SERIES
MAKE UP DAMPER CONNECTION
(switched voltage)low
MAKE-UP AIR
DAMPER
GRD 120 VAC
60 HZ
24V
TRANSFORMER
(included)
DRY CONTACT
TERMINAL BUSHING ON HOOD -
FOR LOW VOLTAGE CONNECTION
MAKE-UP AIR DAMPER
HOOD
24V
TRANSFORMER
(INCLUDED)
GRD
WIRE BOX
FOR LOW
VOLTAGE
CONNECTION
MODEL CC34IQSB
MAKE UP DAMPER CONNECTION
(switched voltage) low
20 GAUGE BELL WIRE FOR LOW
VOLTAGE CONNECTION ON
TOP OF HOOD
120 VAC
60 HZ

Especificaciones del producto

Marca: Best
Categoría: No categorizado
Modelo: MD8T

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