Broan 744SFL User Manual

HUMIDITY SENSING RECESSED FLUORESCENT FAN / LIGHT

READ AND SAVE THESE INSTRUCTIONS

MODEL 744SFL

Page 1

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, 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 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.

3. 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.

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 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.

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. Never place a switch where it can be reached from a tub or shower.

8. Do not use a dimmer switch to operate the light in this unit.

9. Install this unit in a flat ceiling only.

10. For use in non fire rated installations only.

11. Not for use in environmental air handling spaces.

12. If this unit is to be installed over a tub or shower, it

must be marked as appropriate for the application and be connected to a GFCI (Ground Fault Circuit Interrupter) - protected branch circuit.

13. Do not install in a ceiling thermally insulated to a value greater than R40.

14. This unit must be grounded.

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, use the cardboard protector (provided) to keep drywall spray, construction dust, etc. off power unit.

3. The fluorescent bulb used with this product inserts straight into the bulb socket. Do not

attempt to insert or remove bulb by twisting it.

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

OPERATION

The light, fan and humidity control can be operated together or independently using multi-function switch wall controls.

• Use a 3-function control to independently operate light, fan and humidity control.

• Use a 2-function control to independently operate light and humidity control. For fan operation see MANUAL ON WITH TIMED OFF section below.

• Use a 2-function control to independently operate light and fan. Wire humidity control direct to insure humidity control is always on.

See “Connect Wiring” section for various wiring options.

Do not use a dimmer switch control to operate light, fan or humidity control.

SENSOR OPERATION

This humidity-sensing moderate humidity increases and (b) humidity above a 50%-100% relative humidity set-point. (a) and (b) are set with “SENSITIVITY” adjustment. Fan may occasionally turn on when environmental conditions change. If the fan continuously responds to changing environmental conditions, “SENSITIVITY” adjustment may be required (see section below).

STATUS INDICATOR

This indicator can only be seen by looking directly at it. Normal mode is 5-seconds on and off. If it blinks rapidly for 5-seconds and then off, check sensor connections on trim ring/baffle and fan housing.

MANUAL ON WITH TIMED OFF

For odor or vapor control, the fan can be energized by cycling its wall-mounted switch if one is installed. Once the fan has been turned on in this manner, it will remain on for the set “TIMER” period.

To manually energize the fan:

1. Go to Step 2 if switch is already on; otherwise, turn switch on for more than 1 second.

2. Switch off for less than 1 second.

3. Switch back on and fan will turn on.

SENSITIVITY ADJUSTMENT

“SENSITIVITY” has been factory set for most shower applications. If the fan is in a tub area or is used for dampness control, the “SENSITIVITY” may need to be increased toward maximum (“MAX.”). If the control is responding too often to changing environmental conditions, adjustment toward less (“MIN.”) “SENSITIVITY” may be required. To adjust the “SENSITIVITY”:

1. Turn power off at electrical service panel.

2. Remove bulb.

3. Through trim ring/baffle, locate the “SENSITIVITY” screwdriver slot.

4. Using a small, flat-blade screwdriver, carefully rotate “SENSITIVITY” adjustment clockwise toward “MAX.” or counterclockwise toward “MIN.”

5. Re-install bulb.

6. Turn power on and check operation by turning on shower or other humidity source until fan turns on.

7. Repeat above steps if necessary.

fan responds to: (a) rapid to

TIMER ADJUSTMENT

This humidity-sensing fan has a “TIMER”. It is useradjustable from 5 to 60 minutes and is factory-set at 20 minutes. The “TIMER” controls how long the fan remains on (a) after rise in humidity and (b) humidity level are both below the user-adjustable “SENSITIVITY” setting or after being energized by cycling power switch.

To adjust the “TIMER”:

1. Disconnect power at electrical service panel.

2. Remove bulb.

3. Through the trim ring/baffle, locate the “TIMER” screwdriver slot.

4. Using a small, flat-blade screwdriver, carefully rotate “TIMER” adjustment clockwise to increase time or counterclockwise to decrease time.

5. Re-install bulb.

6. Turn power on and check operation by cycling power switch as instructed under “MANUAL ON WITH TIMED OFF” or by turning on a humidity source until fan turns on.

7. Check “TIMER” setting with watch or clock after turning humidity source off if it was turned on it Step 6.

8. Repeat above steps if necessary.

CLEANING & MAINTENANCE

To clean trim ring / baffle: Vacuum with a

soft brush attachment or remove trim ring / baffle and clean with a soft cloth.

SENSOR CLEANING

The humidity sensor is mounted in the trim ring/baffle. The sensor will operate most reliably when cleaned occasionally as follows:

1. Disconnect power at service entrance.

2. Remove the trim ring/baffle. Use a dry dustcloth, clean toothbrush, or lightly vacuum to clean sensor and grille. DO NOT USE ABRASIVE CLOTH, STEEL WOOL PADS, OR SCOURING POWDERS.

3. DO NOT USE cleaning sprays, solvents, or water on or near the sensor!

To clean inside of housing: Remove trim ring / baffle and vacuum inside of housing with a soft brush attachment.

Motor is permanently lubricated. Do not oil or disassemble motor. See “Service Parts” section for a list and illustrations of service parts.

Installer: Leave this manual

with the homeowner.

PLAN THE INSTALLATION

POWER

MODEL 744SFL

Page 2

INSTALLATION

CABLE

CEILING

JOIST

FINISHED CEILING

4" ROUND DAMPER/DUCT CONNECTOR &

4” ROUND

DUCTWORK

TRIM RING / BAFFLE

HOUSING

MOUNTING

BRACKET

Typical Installation

The unit can be installed anywhere between ceiling joists using mounting brackets provided. Install in a flat ceiling only.

INSULATION

(Can be placed around and

over fan housing.)

ROOF CAP

CARDBOARD PROTECTOR

1. Install mounting brackets.

Slide the adjustable mounting brackets into the bracket channels on the housing.

Bend the tabs on the cardboard protector and insert protector into opening in housing.

NOTE: The cardboard protector shields the inside of the housing from drywall spray and construction dust. Do not remove it until after construction is completed.

FAN

HOUSING

Purchase

separately

4-IN. ROUND DUCT

4-IN. ROUND

ELBOW(S)

WALL

CAP

Two of the most common ways to

connect ductwork to the unit.

The unit will operate most quietly and efficiently when located where the shortest possible duct run and minimum number of elbows will be needed.

Use a roof cap or wall cap that has a built-in damper to reduce backdrafts.

Plan to supply the unit with proper line voltage and appropriate power cable.

COOKING AREA

Do not install above or

inside this area.

NOT FOR USE IN

A COOKING AREA.

Cooking

Equipment

Floor

Do not install in a cooking area.

The unit must not be installed above or inside the cooking area shown.

1/8" GAP

2. Mark mounting location.

Position unit between joists and extend mounting brackets.

IMPORTANT: Position brackets so there will be an 1/8” gap between bottom of housing and ceiling material. Mark the top

of keyhole slot on all four mounting brackets.

3. Pound in nails.

Remove unit temporarily, and pound nails partially into joists at all four marked locations.

MODEL 744SFL

BLK

HUMIDITY

CONTROL

LIGHT

BRN

BLK

BLU

BLK

WHT

GRD

SWITCH

UNIT

LIGHT

120

COM

WIRIN

G OP

TION #1

MODEL 68W

(PURCHASE SEPARATELY)

WHT

GRD

BLK

HUMIDITY

LIGHT

FAN

ORG

RED

BLU

BLK

WHT

GRD

WHT

SWITCH

UNIT

LIGHT

COM

GRD

Page 3

4. Hang and secure housing.

Hang unit from nails. Check to make sure that there will be a 1/8” gap between bottom of housing and ceiling material. Pound nails tight. For wide joist centers: A #8 x 3/8 self-tapping screw can be used to join extended brackets together and create a rigid mount. To ensure a noise-free mount, crimp the bracket channels tightly around mounting brackets.

FLUSH

manual mode (for odor control) by cycling ON/OFF switch.

– Allows fan to operate in automatic mode or

2-FUNCTION CONTROL

(ON/OFF)

FAN

(AUTO/OFF)

VAC

LINE

RED

GRD

ORG

FAN

WHTWHT

WIRING OPTION #2 – Allows fan to operate in automatic mode or manual mode (for odor control) by cycling ON/OFF switch. Fan always on with light.

MODEL 68W

2-FUNCTION CONTROL

(PURCHASE SEPARATELY)

FAN

(ON/OFF)

FAN

(AUTO/OFF)

120 VAC

LINE

GRD WHT

BRNBLK

CONTROL

5. Attach damper/duct connector.

Snap the damper/duct connector onto housing. Make sure that tabs on the connector lock in housing slots. (Top of damper/duct connector will be flush with top of housing.) Install ductwork.

VERTICAL

POWER CABLE

CONNECTION

HORIZONTAL POWER CABLE

CONNECTION

6. Choose power cable direction.

Remove wiring plate. When re-attached, the wiring plate allows the power cable to enter unit horizontally or vertically.

7. Connect wiring.

Unit can be wired from outside of housing as shown. Use UL approved connectors to wire per local codes.

FINISHED

CEILING

MATERIAL

CLEARANCE

HOLE

HOUSING

COLLAR

8. Finish ceiling.

Cut an opening in finished ceiling material for housing collar.

SERVICE PARTS

MODEL 744SFL

Page 4

Humidity Control Assembly

must be removed to service these parts.

9. Plug in wiring.

Plug wiring into the proper receptacles.

TRIM RING / BAFFLE

LAMP

BRACKET

SPRINGS

10. Attach trim ring / baffle to housing.

Remove the cardboard protector from inside the housing collar. Use a pencil to insert one end of each spring into the holes on the

lamp bracket. Center trim ring / baffle in ceiling opening.



11. Install bulb.

CAUTION - RISK OF FIRE: Use only R30-shaped, 14W compact fluorescent lamp with GX24Q-1 base (supplied). Replacement bulbs can be ordered from Broan if not available locally (see service parts list).

CAUTION: Push bulb straight into bulb socket.

Do not twist bulb to install or remove.

KEY NO. PART NO. DESCRIPTION

1 97014185 Damper / Duct Connector 2 97016382 Housing Assembly 3 98003036 Mounting Bracket (4 req.) 4 98005512 Wiring Adaptor Plate 5 99524804 Blower Wheel * 6 99524805 Motor Bracket / Venturi * 7 99080557 Motor * 97016454 Motor / Motor Bracket Assembly (includes Key Nos. 6 & 7) * 8 99770141 Lamp Wire Harness 9 99770143 Main Wire Harness 10 97018168 Humidity Control Assy. (includes Lamp Bracket) 11 99271401 Ballast / Lampholder 12 97018169 Trim Ring / Baffle with Springs & Humidity Sensor 13 99525160 Baffle Springs (2 req.) 14 97016848 Fluorescent Lamp 15 98010628 Electrical Box Cover

Order replacement parts by PART NO. - not by KEY NO. * Humidity Control Assembly must be removed to service these parts.

WARRANTY

Broan-NuTone warrants to the original consumer purchaser of its products that such products will be free from defects in materials or workmanship for a period of one year from the date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. During this one-year period, Broan-NuTone will, at its option, repair or replace, without charge, any product or part which is found to be defective under normal use and service. THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS AND TUBES. This warranty does not cover (a) normal maintenance and service or (b) any products or parts which have been subject to misuse, negligence, accident, improper maintenance or repair (other than by Broan-NuTone), faulty installation or installation contrary to recommended installation instructions. The duration of an implied warranty is limited to the one-year period as specified for the express warranty. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply to you. BROAN-NUTONE’S OBLIGATION TO REPAIR OR REPLACE, AT BROAN-NUTONE’S OPTION, SHALL BE THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. BROAN-NUTONE SHALL NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. This warranty supersedes all prior warranties. To qualify for warranty service, you must (a) notify Broan-NuTone at the address or telephone number stated below, (b) give the model number and part identification and (c) describe the nature of any defect in the product or part. At the time of requesting warranty service, you must present evidence of the original purchase date. Broan-NuTone LLC Hartford, Wisconsin www.broan.com 800-558-1711

BROAN-NUTONE ONE YEAR LIMITED WARRANTY

99044499B

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