BROAN-NUTONE IQ12 INSTRUCTIONS

INTERNAL

BLOWER

For use with compatible BEST

See hood manual for suitability.

MODEL iQ12

range hoods.

Page 1

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S) OBSERVE THE FOLLOWING:

1. 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 the warranty.

2. Before servicing or cleaning unit, switch power off at service panel and lock 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.

3. Installation work and electrical wiring must be done by qualified personnel in accordance with all applicable codes and standards, including fire-rated construction codes and standards.

4. 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 guidelines 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.

5. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.

6. Ducted fans must always be vented to the outdoors.

7. Do not use this range hood with any additional solid-state speed control device.

8. To reduce the risk of fire, use only steel ductwork.

9. This unit must be grounded.

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

cooking flaming foods.

c) Clean ventilating fans frequently. Grease should not be allowed

to accumulate on fan or filter.

d) Use proper pan size. Always use cookware appropriate for the

size of the surface element.

WARNING

TO REDUCE THE RISK OF INJURY TO PERSON(S) IN THE EVENT OF A RANGE TOP GREASE FIRE,OBSERVE THE FOLLOWING*:

1. SMOTHER FLAMES with a close-fitting lid, cookie sheet, or metal tray, then turn off the burner. BE CAREFUL TO PREVENT BURNS. IF THE FLAMES DO NOT GO OUT IMMEDIATELY, EVACUATE AND CALL THE FIRE DEPARTMENT.

2. NEVER PICK UP A FLAMING PAN – You may be burned.

3. DO NOT USE WATER, including wet dishcloths or towels – This could cause a violent steam explosion.

4. Use an extinguisher ONLY if:

A. You know you have a Class ABC extinguisher and you know

how to operate it.

B. The fire is small and contained in the area where it started. C. The fire department has been called. D. You can fight the fire with your back to an exit. * Based on “Kitchen Fire Safety Tips” published by NFPA.

CAUTION

1. For general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.

2. To avoid motor bearing damage and noisy and/or unbalanced impellers, keep drywall spray, construction dust, etc. off power unit.

3. This blower has a thermal overload which will automatically shut off the motor if it becomes overheated.The motor will restart when it cools down.If the motor continues to shut off and restart, have the hood serviced.

4. Please read specification label on product for further information and requirements.

5. To reduce the risk of fire and to properly exhaust air on a ducted installation, be sure to duct air outside – Do not exhaust air into spaces within walls or ceiling or into attics, crawl spaces, or garage.

INSTALLER:

Save this manual for Electrical Inspector

and Homeowner to use.

MODEL iQ12

Page 2

Wall & Roof Caps, Exterior Blowers

Elbows

Ductwork

In-Line Damper

MODEL 437

(High capacity roof cap)

MODEL 418

(10” round adjustable elbow)

MODEL 410

(10” round duct—2 ft. sections)

MODEL 421

(10” round In-Line Damper - included)

MODEL 441

(10’’ Round wall cap)

Blower System

OPTIONAL

DECORATIVE

FLUE

IP29M

SERIES HOOD

(Canopy with

blower controls

& lighting.)

MODEL iQ12 BLOWER/ROUGH-IN KIT

(1200 cfm interior blower & rough-in plate)

OPTIONAL DECORATIVE FLUE

WP28M, WP29M SERIES HOODS

(Canopy with

blower controls

& lighting.

INTERNAL BLOWER RANGE HOOD SYSTEM

INSTALLATION

MODEL iQ12

Page 3

REMOVE ONE ELECTRICAL KNOCKOUT

1. Run power cable to installation location. Remove one knockout from rough-in plate wiring box.

VERTICAL DISCHARGE

(WP28M, WP29M, IP29M)

ROUGH-IN PLATE

GROUND WIRE

TO GROUND

SCREW

3. Remove wiring cover.

4. Connect cable to wiring box using proper connector. Connect BLACK TO BLACK (hot), WHITE TO WHITE (neutral) and GREEN OR BARE WIRE (ground) under second ground screw. Replace wiring cover.

5. Run 10” round steel duct to installation location.

MODEL 421 10-IN. DAMPER (INCLUDED)

BLACK TO BLACK

WHITE TO WHITE

HORIZONTAL DISCHARGE

(WP28M & WP29M only)

2. Attach ROUGH-IN PLATE to MOUNTING STUDS at inside, top of hood with (4) existing #10-32 HEX NUTS.

17” MIN.

6. Install 10” damper (Model 421, included) inside the vertical ductwork that will be attached to the rough-in plate. Do not install in a horizontal ductwork or directly on top of the adapter or it will not open and close properly.

Remove shipping tape if present. Secure the damper to the duct with 3 - #8 sheet metal screws (not provided). Ensure the damper opens and closes freely. Seal all joints with metal foil duct tape to eliminate air leaks.

NOTE: To optimize airflow and reduce noise, position the damper at least 17” above the top of the rough-in plate - or as far as the duct run will allow.

MODEL iQ12

Page 4

HOOD RECEPTACLE

ROUGH-IN PLATE POWER CORD

HOOD RECEPTACLE

BLOWER POWER CORD

ROUGH-IN PLATE

TABS ON BACK EDGE OF PLATE

SLOTS

STUDS

HEX NUTS (2)

BLOWER / MOUNTING PLATE ASSEMBLY

7. Engage two TABS on BLOWER / MOUNTING PLATE ASSEMBLY into two SLOTS in ROUGH-IN PLATE. Secure blower / mounting plate assembly to THREADED STUDS on rough-in plate with (2) 10-24 HEX NUTS.

CALIBRATE iQ BLOWER SYSTEM

INTERNAL BLOWER DUCTED UNITS ONLY

After the hood is installed and wired, engage the calibration process (our Guaranteed Performance System Technology to ensure full-rated airflow is being delivered). Prior to calibration, ensure that all filters, light bulbs and duct system are installed.

CALIBRATION PROCESS

Hold the calibration button for 3 seconds; calibration button will light up and stay on for up to 13 minutes. The blower will start and begin the calibration process. When calibration is complete, one of two things will occur:

1. The blower turns off and calibration button light stays on = Successful calibration. Press the button to turn off the LED. Note: The LED will also turn off if you select any blower speed on the control.

2. The blower turns off and calibration button light blinks continuously = Too much restriction in the ductwork is preventing the IQ Blower System™ from achieving the rated airflow. The blower is automatically set to maximum intensity.

NOTE: Common items that cause restrictions: restricted

damper flap (backdraft damper, wall cap, roof cap), too many elbows, duct size less than 80% of hood outlet, poor transition, use of flex ducting and/or crushed ducting.

(2) SCREWS

CALIBRATION

BUTTON

ASSEMBLY

8. Install the CALIBRATION BUTTON ASSEMBLY using (2) SCREWS (provided).

9. Plug one of the rough-in plate power cords into the control box power cord.

10. Plug BLOWER POWER CORD and ROUGH-IN PLATE POWER CORD into HOOD RECEPTACLES.

11. Wrap excess wires with wire ties (provided) to prevent contact with blower wheel.

Three options are available if your hood system has too

much restriction:

1. Accept airflow as is. a. Press the calibration button to accept airflow as is. The

IQ Blower System™ is now configured to the highest possible performance. The blinking calibration light goes out. Note: The LED will also turn off if you select any blower speed on the control.

2. Correct duct restriction, clear the original calibration data, and repeat the calibration process.

a. Correct the duct restriction. b. Clear the original calibration data by holding calibration

button for 10 seconds. The light will blink 3 times to confirm and the blower configuration will go back to default settings.

c. Repeat calibration process from the beginning.

3. Clear calibration data to reset hood to default factory setting and achieve standard high pressure blower performance.

a. Clear calibration data and reset hood to factory default

setting by holding calibration button for 10 seconds. The light will blink 3 times to confirm and the blower configuration will go back to default settings.

SERVICE PARTS

Model iQ12

KEY PART DESCRIPTION QTY NO. NUMBER

1 97019411 ROUGH-IN PLATE WELDMENT 1 2 98011050 MOUNTING PLATE ASSEMBLY 1 3 99440033 POWER CORD 2 4 99150471 SCREW, #10-32 X 1/2 (HEX WASHER HEAD) 2 5 99400060 STRAIN RELIEF 2 6 98003370 OUTLET BOX COVER 1 7 99170245 SCREW, #8-18X3/8” 1 8 99260488 NUT WHIZ 10-24 2 # 97019461 IQ12 ROUGH IN KIT (COMPLETE) (INCLUDES KEYS 1-8) 9 PCB ENCLOSURE RIGHT 1 10 PCB ENCLOSURE LEFT 1 11 SCREW, #8-18X3/8” 5 # 97019457 PCB ENCLOSURE KIT (INCLUDES KEYS 9-11) 12 SCREW, 3MM X 6MM PH W/LOCK WASHER 6 13 IQ12 PCB BOARD 1 # 97019472 IQ12 PCB BOARD KIT 1 (INCLUDES KEYS 12 AND 13) 14 PCB TRIAC BOARD 1 15 STANDOFF 4 # 97019471 PCB, TRIAC BOARD KIT 1 (INCLUDES KEYS 14 AND 15) 16 99400088 STRAIN RELIEF 2 17 97018985 BLDC BLOWER 2 + 99271491 WIRE HARNESS,VARIABLE SPEED 1 + 99271503 WIRE HARNESS,CALIBRATION BUTTON 1 + 99271498 WIRE HARNESS, POWER DUAL IQ BOARD 1 + 99271471 WIRE HARNESS FOR SERVICE BLOWERS 1 + 99260488 NUT WHIZ 10-24 10 + 99580015 10-INCH ROUND DAMPER 1

+ NOT SHOWN # NOT SHOWN ASSEMBLED * STANDARD HARDWARE. MAY BE PURCHASED LOCALLY.

MODEL iQ12

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