Best MD8T Manual

Best Ikke kategoriseret MD8T

Læs gratis den danske manual til Best MD8T (14 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 38 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 19.5 anmeldelser. Har du et spørgsmål om Best MD8T, eller vil du spørge andre brugere om produktet?

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Side 1/14

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

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

Damper ducted directly

to a ceiling, floor, or wall

Produkt Specifikationer

Mærke:	Best
Kategori:	Ikke kategoriseret
Model:	MD8T

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