Best MD8TU Manual

Best Ikke kategoriseret MD8TU

Læs gratis den danske manual til Best MD8TU (12 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 18 personer og har en gennemsnitlig bedømmelse på 4.8 stjerner ud af 9.5 anmeldelser. Har du et spørgsmål om Best MD8TU, eller vil du spørge andre brugere om produktet?

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Side 1/12

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. Validated performance testing certified for use with BEST, Broan, and Broan Elite

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 & PRESSURE SWITCH

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.

PLAN THE INSTALLATION

Planning the installation first requires selecting the most appropriate installation ap-

proach. 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 instal-

lations 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

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 appliance vents,

chimneys, plumbing stacks, and bathroom or kitchen exhaust vents. If local codes

have more stringent separation requirements, they shall apply.

• Outside air intake is placed high enough above grade to prevent blockage from

snow or other debris such as leaves, and at a minimum of 1’ above grade.

• Make-up air damper should not draw air from crawlspaces, garages, attics, adja-

cent 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 environment, it is important to meet the

following requirements:

• Model 641FA (6”) and 643FA (8”) fresh air inlet wall caps include protective bird

screens to keep out animals and outside 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 outside 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 tempera-

ture 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.

WHAT IS INCLUDED IN THE PACKAGE

- Motorized Damper

- Transformer

- Pressure Switch Kit which includes:

- Pressure Switch

- Probe

- 12” PVC tubing 1/4” I.D.

- Gasket

- (6) Sheet Metal Screws

TOOLS REQUIRED

- 1/4” Socket Drive

- Flathead or Phillips Screw Driver

- 3/8” Drill Bit

- Duct Tape

- Low Voltage Wire (2 Conductor)

- (2) 1/4” Female Spade Terminals

- Wire Nuts

MODELS

MD6TU • MD8TU • MD10TU

Service Parts: go to www.broan.com and type the Model in the “Model Search” field

at the top of the page.

Broan, 926 W. State Street, Hartford, WI 53027 800-637-1453

Damper and outside air duct connected directly to a ceiling, floor, or wall register.

INTERIOR WALL

WALL

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)

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.

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

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

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.

PRESSURE SWITCH OPERATION

The pressure switch is designed to operate when the static pressure increases to 0.05”

Ps or more. It may not operate at low speeds since the pressure is below this limit.

MULTIPLE DAMPERS

More than one damper may be required to balance the system. If more than one is

required use (1) MD6TU or MD8TU and then use the MD6 or MD8 dampers as ad-

ditional dampers.

INSTALLATION OF PRESSURE SWITCH

AND PROBE

For the probe & pressure switch to work effectively the roof or wall cap must have a

spring loaded damper. The following Broan products are recommended:

TYPICAL INSTALLATION WITH

INTERNAL BLOWER AND ROOF VENT

RANGE

HOOD

PROBE

EXHAUST

DUCT

ROOF CAP

w/DAMPER

PRESSURE

SWITCH

HOOD

FLUE

IN-LINE

DAMPER

TYPICAL INSTALLATION WITH

INTERNAL BLOWER AND WALL VENT

RANGE

HOOD

PROBE

EXHAUST

DUCT

PRESSURE

SWITCH

HOOD

FLUE

WALL CAP

w/DAMPER

IN-LINE

DAMPER

TYPICAL INSTALLATION WITH

INTERNAL BLOWER AND HORIZONTAL

DUCTING w/ WALL VENT

RANGE

HOOD

WALL CAP

w/DAMPER

PROBE

TUBING

PRESSURE

SWITCH

KITCHEN

CABINET

TYPICAL INSTALLATION WITH INLINE BLOWER

RANGE

HOOD

PROBE

EXHAUST

DUCT

PRESSURE

SWITCH

HOOD

FLUE

ROOF CAP

w/DAMPER

INLINE

BLOWER

TYPICAL INSTALLATION

WITH EXTERIOR BLOWER

RANGE

HOOD

PROBE

EXHAUST

DUCT

PRESSURE

SWITCH

HOOD

FLUE

EXTERIOR

BLOWER

Wall Cap models:

WC638 – For 3¼” x 14” duct

639 / 649 – For 3¼” x 10” duct

647 – For 7” round duct

843BL / 641 – For 6” round duct

643 / 643FA – For 8” round duct

613 – For 12” round duct

441 – For 10” round duct.

Roof Cap models:

437 – High capacity up to

1200 cfm

634 / 644 – For 3¼” x 10” and

up to 8” round

634M – For 6” round

LOCATION OF PROBE AND

PRESSURE SWITCH

The probe must be mounted between the range hood damper and the wall cap, roof

cap, in-line blower or external blower. Mount the probe as close to the hood outlet as

possible but make sure the hood damper operation is not affected.

The pressure switch should be mounted so it is accessible for any future service.

The switch can mounted no more then 72” away from the probe. If longer tubing is

required then what is supplied, purchase 1/4” I.D. PVC tubing from a local source.

See the illustrations below for possible installation scenarios.

Produkt Specifikationer

Mærke:	Best
Kategori:	Ikke kategoriseret
Model:	MD8TU

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