VentAHood Magic Lung Blower Operating manual

Owner and Maintenance Guide

for Models Equipped with

Magic Lung® Blower

Thank You For Choosing Vent-A-Hood®

We know you will be pleased with your purchase decision.

Since 1933, our company has earned an outstanding reputation

because of our commitment to performance, quality, and

reliability.

The Importance of Cooking Ventilation

The main purpose of cooking ventilation is to capture the

by-products of cooking. These by-products are heat, steam,

smoke, odor, hazardous gases, and grease. Without proper

cooking ventilation, these by-products can cause a great deal

of harm to the home. Vent-A-Hood®range hoods exhaust

all cooking by-products to the outside with the exception of

GREASE, which is collected by the patented Magic Lung®

blower system.

The Magic Lung Blower®- How It Works

The Magic Lung® internal blower system was originally patented

in 1937. The Magic Lung®pressurizes grease-laden air as it

passes through the blower wheel and cools the grease from a

vapor into a liquid. The centrifugal action of the Magic Lung®

traps 99% of cooking grease without the use of messy and

inefcient wire mesh or bafe lters. The constant speed

centrifugal blower is also designed to create a pressure barrier,

lowering the risk of an attic or wall re.

L023 0314A

Page 2L023

Safety

READ AND SAVE THESE INSTRUCTIONS

WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC

SHOCK, OR INJURY TO PERSONS, OBSERVE THE

FOLLOWING:

A. Use this unit only in the manner intended by the manufacturer.

If you have questions, call the manufacturer.

B. 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.

C. Installation work and electrical wiring must be done by qualied

person(s) in accordance with all applicable codes and standards,

including re-related construction.

D. Sufcient air is needed for proper combustion and exhausting

of gases through the ue (chimney) of fuel burning equipment

to prevent back drafting. 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.

E. When cutting or drilling into wall or ceiling, do not damage

electrical wiring and other hidden utilities.

F. Ducted fans must always be vented to the outdoors. Do not vent

exhaust air into spaces within walls or ceilings, crawl spaces,

attics, or garages.

WARNING - TO REDUCE THE RISK OF A RANGE

TOP GREASE FIRE:

A. Never leave surface units unattended at high settings. Boilovers

cause smoking and greasy spillovers that may ignite. Heat oils

slowly on low or medium settings.

B. Always turn hood ON when cooking at high heat or when

ambeing food (i.e. Crepes Suzette, Cherries Jubilee, Peppercorn

Beef Flambe).

Page 3 L023

Safety (Continued)

C. Clean ventilating fans frequently. Grease should not be allowed

to accumulate on fan or in blower housing.

D. Use proper pan size. Always use cookware appropriate for the

size of the surface heating element.

WARNING - TO REDUCE THE RISK OF INJURY TO PERSONS,

IN THE EVENT OF A RANGE TOP GREASE FIRE, OBSERVE THE

FOLLOWING:

A. SMOTHER FLAMES with a close-tting lid, cookie sheet, or

metal tray, then turn off the burner. BE CAREFUL TO PREVENT

BURNS. If the ames do not go out immediately, EVACUATE

AND CALL THE FIRE DEPARTMENT.

B. NEVER PICK UP A FLAMING PAN - You may be burned.

C. DO NOT USE WATER, including wet dish cloths or towels - a

violent steam explosion will result.

D. Use an extinguisher ONLY IF:

1) You know you have a Class ABC re extinguisher and you

already know how to operate it.

2) The re is small and contained in the area where it started.

3) The re department is being called.

4) You can ght the re with your back to an exit.

CAUTION

TO REDUCE THE RISK OF FIRE, AND TO PROPERLY EXHAUST

AIR, BE SURE TO DUCT EXHAUST AIR OUTSIDE. DO NOT VENT

EXHAUST AIR INTO SPACES WITHIN WALLS OR CEILINGS, OR

INTO ATTICS, CRAWL SPACES, OR GARAGES.

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO

NOT USE THIS FAN WITH ANY SOLID-STATE SPEED CONTROL

DEVICE.

Page 4L023

Safety (Continued)

CAUTION

FOR GENERAL VENTILATION USE ONLY. DO NOT USE TO

EXHAUST HAZARDOUS OR EXPLOSIVE MATERIALS AND

VAPORS.

WARNING

TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCTWORK.

THIS MANUAL SHOULD REMAIN WITH THE HOOD

FOR FUTURE REFERENCE

Page 5 L023

Operating Instructions

A. Models with Rocker Switch Controls

On models with rocker switches, blowers are switched independent

from one-another. The user should generally start with the hood on

the lowest setting, and then increase speed and/or turn on additional

blowers as required.

Red Switch - This switch operates a two-speed blower. This two-

speed blower allows the user to switch the hood to “LOW” (position

I) for quieter operation during light cooking, while the “HIGH”

(position II) setting delivers the full power of the Magic Lung®blower

unit. If the two-speed blower is turned to “LOW”, the heat sensor

(SensaSource®) monitors cooking activity. If the heat reaches an

unacceptable level inside the hood, or a range re occurs, the two-

speed blower will switch from “LOW” to full power automatically.

The sensor will return the blower to the “LOW” level when the heat

subsides or the hood may be turned off manually (middle position).

Red Switch

White Switch - This switch controls the lights. This switch can be set

for “LOW” level lighting (position I), “HIGH” level lighting (position II),

or “OFF” which is in the middle position.

White Switch

Page 6L023

Operating Instructions (Continued)

Black Switch - This switch operates an additional single-speed

blower. The single-speed blower is either off or on, and is not

controlled by the SensaSource®heat sensor or the red switch. This

blower should be engaged if the heat level exceeds the capacity of

the two-speed blower.

Black Switch

Note: The location of the switches on the hood corresponds to the

location of the blowers in the hood (i.e. left switch operates left

blower, etc.) except for a T400H Island 1100 CFM Cluster Blower,

which is diagrammed below.

T400 Island Cluster Blower Conguration (Top View)

Black Switch Red Switch White Switch Red Switch Black Switch

Blower 1 Blower 2 Lighting Blower 3 Blower 4

Front Side

Blower 1 Blower 2

Blower 3 Blower 4

Page 7 L023

Operating Instructions (Continued)

B. Models with Dial Controls

On hood models with dial controls, blower assemblies are switched

independent from one-another. The user should generally start with

the hood on the lowest setting, and then increase speed and/or turn

on additional blowers as required.

Blower Control Dial - This switch operates a single or dual blower. To

operate the blower(s), rotate the dial through the fan speed settings

by turning it clockwise (facing the knob). Rotate the dial counter-

clockwise to turn the blower(s) off.

Light Control Dial - This switch operates the lights. To operate the

lights, rotate the dial through the light intensity settings by turning

it clockwise (facing the knob). Rotate the dial counter-clockwise to

turn the lights off.

Light Control Dial

Blower Control Dial

Blower Control Dial Light Control Dial Blower Control Dial

Blower 1 & 2 Lighting Blower 3 & 4

T400 Island Cluster Blower Conguration (Top View)

Front Side

Blower 1 Blower 2

Blower 3 Blower 4

Page 8L023

Hood Cleaning

A. Hood Canopy

Wipe down the interior and exterior of the hood as needed with a soft

cloth and warm soapy water (liquid dish detergent is acceptable). Do

not use acids, abrasives, strong detergents, solvents, or scouring

pads. Stainless steel should be treated with a quality stainless steel

cleaner such as Stainless Steel Magic®(Vent-A-Hood part number

SS64®). Follow all label instructions. Do not polish across the grain

or in circles.

Real brass, real copper, and hammered copper hoods will oxidize

and/or tarnish over time. Use a quality copper or brass cleaner such

as Red Bear Copper Polish®(Vent-A-Hood®part number CP101).

Follow all label instructions. Do not polish across the grain or in

circles. Do not use acids, abrasives, strong detergents, degreasers,

solvents, or scouring pads.

B. Blower Unit

WARNING: To reduce the risk of personal injury, be sure the

power is turned off in the hood before removing the shield(s)

and blower housing(s).

The Vent-A-Hood®Magic Lung®blower captures grease by-products

in the blower housing(s) and E-Z Clean blower shield(s). E-Z Clean

blower shields require more frequent cleaning than the blower

housing but individual cooking habits determine how often each item

will need to be cleaned.

E-Z Clean blower shields are easily removed for cleaning by pulling

the E-Z Clean blower shield(s) toward the front of the hood being

careful to keep the tray level if the hood has been recently used.

Page 9 L023

Hood Cleaning (Continued)

To remove the blower housing(s) and damper(s), rst remove the E-Z

Clean blower shield. The blower housing is removed for cleaning by

unsnapping the suitcase latches (one on each side of the housing).

Then, pull the housing forward and gently “tip” it downward to clear the

blower wheel(s). The blower wheel(s) can be removed (if necessary)

by using the hex wrench that was provided with this manual. See part

C of this section for details on how to clean the blower wheel(s).

Clean the shield(s), damper(s), and/or blower housing(s) in a sink

of warm soapy water (liquid dish detergent) and let soak for a few

minutes. Wash with a sponge or dishcloth, rinse and let drain before

reinstalling. Alternatively, the blower housing(s) and E-Z Clean blower

shield(s) may be placed into a dishwasher.

C. Blower Wheel

WARNING: To reduce the risk of personal injury, be sure the

power is turned off in the hood before removing the shield(s)

and blower housing(s).

Regular cleaning of the blower housing should prevent grease

accumulation on the blower wheel. If grease build-up should occur,

the blower wheel may easily be cleaned in place using a soft bristle

toothbrush and a common degreaser such as Formula 409®. Take

care not to move or lose the metal balancing clips that may be afxed

to the wheel (B).

Page 10L023

Hood Cleaning (Continued)

For instances where the blower wheel may need to be removed,

follow the instructions below.

Removing the blower wheel requires a 1/8” hex wrench which has been

provided with this manual. There is a small set screw on the side of

the hub of the wheel (A) that tightens up against a “at” spot on the

motor shaft. The set screw must be turned ½turn counterclockwise

to remove the blower wheel. Insert wrench through the blades of the

blower wheel and into the set screw. If the wheel is difcult to remove,

the area where the motor shaft makes contact with the blower wheel

hub may need to be sprayed with a common penetrating oil such

as WD-40®.

After allowing the penetrating oil to soak for a few minutes, push

the blower wheel forward slightly, then gently pull the blower wheel

off the motor shaft. Use caution to avoid bending or distorting the

blower wheel and take care not to move or lose the metal balancing

clips that may be afxed to the wheel (B).

A soft bristle toothbrush with warm soapy water may be used to clean

the blades, or soak the blower wheel in warm soapy water. When

reinstalling the wheel onto the motor shaft, make sure the set screw

makes direct contact with the “at spot” on the motor shaft. Slide

the blower wheel onto the motor shaft as far as it will go, making

sure the back of the blower wheel does not touch the motor mount

screws protruding from the motor.

If the motor is too far back, it will rub the motor mount screws, and if

it is too far forward, it will rub the inside of the blower housing. Adjust

the blower wheel slightly to nd the correct front-to-rear location.

Tighten the set screw (clockwise) to lock the blower wheel in the

correct position.

NOTE: For hoods that have more than one blower wheel, make sure

that white blower wheels are matched up with white motor rings,

and black blower wheels are matched up with black motor rings.

The hood will not perform properly if blower wheels and motors are

mismatched.

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