Broan 345SOBK, 345SOWW Instructions Manual

MODELS 345SOBK • 345SOWW

ROOF-MOUNT
SOLAR POWERED
ATTIC VENTILATOR

READ AND SAVE THESE INSTRUCTIONS

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, disable the ventilator by cover­ing the solar panel with cardboard or disconnecting the wires
from the motor terminals (note wire locations when disconnect­ing).

3. Installation work must be done by a qualified person(s) in ac­cordance with all applicable codes and standards, including
fire-rated construction codes and standards.

4. If removing an existing 120 VAC powered attic ventilator, use
only a qualified person(s) to remove any electrical wiring in
accordance with all applicable codes and standards.

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 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.

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

TOOLS AND MATERIALS REQUIRED

Drill

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1/4" Drill Bit

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Sabre Saw or Keyhole Saw

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Hammer

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Ruler / Tape Measure

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Pencil, Marker or Scribe

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Utility Knife

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Pry Bar (to remove roofing nails)

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5/16" Socket and Extension

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Roofing Cement

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Galvanized Roofing Nails (1¾" min.)

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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 unit has an unguarded impeller. Do not use in locations
readily accessible to people or animals.

4. This ventilator operates when the solar panel is exposed to
sun light. To reduce risk of injury while installing, servicing or
cleaning unit, cover the solar panel with cardboard or discon­nect the wires from the motor terminals (note wire locations
when disconnecting).

5. The recommended open air inlet for this ventilator is 2 square
feet. The best location for these air intake vents are under the
eaves with direct access to the attic. Failure to provide these
intakes could cause natural-draft gas appliances to backdraft.

6. Your attic fan installation will create a screened opening into
your attic space. During a heavy rain storm there could be a
light spray of rain into this attic space. This is a normal condi­tion with all attic ventilators and will not cause any damage to
the structure. We recommend that you do not store any valu­able articles directly under the fan opening in the roof.

7. This ventilator is intended for roof installation. Broan Models
353, 345GOBK & 345GOWW Gable Mount Ventilators are
available for side wall applications.

8. The plastic ventilator dome and base may be painted with
high quality paint. Follow the paint manufacturer's recommen­dations for acrylic and ABS plastic as appropriate. Take care
to avoid getting paint on the solar panel.

9. This ventilator includes a permanently lubricated motor. Do
not oil or disassemble.

10. The installation instructions contained in this document are
only a recommendation and individual professionals may
have their own methods of installation. If your roof has an
existing warranty, installation of this product by anyone other
than those who installed the roof may jeopardize any future
warranty claim. Please check with the original installer of your
roof if this is a concern.

11. When working with asphalt shingles in cold weather (below

o

F), take care to avoid damage to the shingle edges and

40
corners.

12. For installations in climates where cold weather condensation
is not a concern, Broan Model CWT45 thermostat is available.
It disconnects power to the motor when the temperature drops
below 50
ture reaches 61

o

F. Power is applied to the motor when the tempera-

o

F.

Register your product online at:

www.broan.com/register

INSTALLATION

Note: This ventilator is capable of replacing an existing
120 volt powered attic ventilator. Only a qualified per­son should remove any electrical wiring in accordance
with local codes and standards.

MODELS 345SOBK • 345SOWW

Page 2

3. Separate the dome from the base by removing four (4)

sheet metal screws. Set dome aside.

1. Determine the sun’s best exposure location on your roof
barring shade (trees, other buildings etc.) at 4:00pm in
the hottest month of the year. Generally, we recommend
a point located 24” – 36” on center below the roof peak
and centrally along the ridgeline on the south, southwest,
or west side of the home.

2. Prior to installation, we recommend setting up the
ventilator to verify operation. Take the ventilator to a
location exposed to sun. Removing the cardboard
cover from the solar panel should cause the ventilator
to operate. Secure cardboard in place over solar panel
(for safety).

1

2

5

6

4

3

9

8

7

4. Working from the inside of your attic, find the desired
ventilator location and mark a spot halfway between
rafters at a point that is 24” – 36” below the roof ridge.

5. Drill a guide hole through the roof at this mark.

6. From the roof side, using the guide hole as the center
point, use a nail and string to scribe a 16-1/2” diameter
circle on the shingles. Note: If replacing an existing
ventilator, the hole diameter may be larger than 16-1/2”.
This is acceptable provided the roofing material overlaps
the ventilator by at least 2” on all sides.

MODELS 345SOBK • 345SOWW

Page 3

9. Drill a large starting hole for the sabre saw just inside of
the line or the 14" circle created in Step 8.

7. Cut out the shingles inside of the circle.

8. Using the same nail and string shown in step 6, scribe
a 14” diameter circle on the black paper or roof decking.
Note: if replacing an existing ventilator the hole diameter
may be larger than 14”. This is acceptable provided the
ventilator base is adequately supported by the roof
decking.

10. Cut out the roof board(s) inside of the line.

11. For proper removal of roofing nails, draw a 27" square,
centered around the hole. Remove nails holding shingles
down from top two-thirds of square.

MODELS 345SOBK • 345SOWW

Page 4

12. Apply a large bead of roofing cement in the molded
groove on the bottom side of ventilator base. Make sure
the arrow on the ventilator base is pointed toward the
roof ridge. Start two-thirds of the way down from the top
of the 27” square and slide the ventilator base under
the shingles. Do not bend the shingles any more than
necessary. Center the ventilator base over the hole.

NAIL UNDER SHINGLES

14. Using a good grade of roofing cement material, seal
shingles and all nail heads. DO NOT seal the bottom
edge of the ventilator base.

15. Position the ventilator dome so the top points toward
the roof ridge. Install the dome to the ventilator base
using the four (4) sheet metal screws removed during
step 3. Remove cardboard from the solar panel and
make sure the ventilator operates.

13. Make sure the ventilator base is parallel to the roof ridge,
carefully lift shingles and nail or screw base securely to
the roof using galvanized roofing nails or screws. Nail all
corners and around perimeter of base every 6 inches.

SERVICE PARTS

Replacement parts

can now be ordered

on our website.

Please visit us at

www.Broan.com

MODELS 345SOBK • 345SOWW

Page 5

1

2

3

4

5

Model Model
Key 345SOBK 345SOWW Description
No. (Black) (Weathered Wood)

1 77001311 77001313 Solar Panel Assembly (Dome)
2 CWT45 CWT45 Thermostat (Optional)
3 79310005 79310005 Fan Blade w/ Set Screw
4 79080082 79080082 Motor, DC
5 77001284 77001287 Roof Sheet Panel

MODELS 345SOBK • 345SOWW

Page 6

WARRANTY

BROAN-NUTONE LLC

– Exclusive Limited Warranty –

The Exclusive Limited Warranty Agreement (the “Warranty”) is entered into by and between Customer and Broan-NuTone LLC
(“Broan”). Customer has carefully reviewed this Warranty and agrees that Broan’s performance of its obligations hereunder will
provide Customer with an adequate remedy which will serve the essential purpose of the parties’ agreement relating to the products
manufactured by Broan and identified on the reverse side hereof (the “Products”). Customer acknowledges and agrees that he/she is
purchasing the Products for residential purposes (and not for industrial or commercial purposes) after careful inspection of the same.
Customer’s rights and benefits hereunder inure solely to Customer, as the original purchaser of the Products, and are non-assignable
and non-transferable. No other party or entity, including, without limitation, subsequent purchasers or owners of the Products shall
have or be entitled to assert any rights or benefits hereunder.

EXCLUSIVE LIMITED WARRANTY; LIMITATION OF REMEDIES. Broan hereby warrants the Customer that the Products’ motors
are and will remain for a period of two (2) years from the date of delivery to Customer; and the Products are and will remain for a
period of six (6) years from the date of delivery to Customer (collectively, the “Warranty Period”), free of defects in materials and
workmanship, provided that such Products are used for their intended purpose and are properly serviced in accordance with the
User’s Manual provided to Customer. Subject to the foregoing, if at any time during the Warranty Period any Product fails to conform
to the foregoing warranty by reason of defects in materials or workmanship, Customer shall properly notify Broan in writing and shall
include with such notice a sales receipt or proof of purchase of the defective Product, and Broan at its option shall repair or replace
the defective Product or component part without charge to Customer, except for: (A) costs incurred in transporting the Products or
component parts to and from Broan’s designated dealer or its manufacturing plant in Hartford, Wisconsin; and (B) charges for labor
or other costs incidental to the removal or remounting of component parts repaired or replaced under this Warranty, both of which
shall be borne by Customer. Notwithstanding any provision herein to the contrary, this Warranty shall not extend or obligate Broan
to take any action with respect to: (A) Products which have been modified, altered, installed, used or operated in a manner which is
not recommended by Broan, including any Products in which parts not manufactured or approved by Broan have been installed; (B)
Products which have not been regularly or properly serviced in accordance with the User’s Manual or which have otherwise been
neglected; and (C) ordinary wear and tear, service and maintenance and replacement items. THIS WARRANTY APPLIES ONLY
TO MACHINERY, EQUIPMENT AND COMPONENT PARTS MANUFACTURED BY BROAN. THIS WARRANTY DOES NOT APPLY
OR EXTEND TO: (A) PARTS PURCHASED SEPARATELY FROM SUCH MACHINERY AND EQUIPMENT, WHICH ARE COVERED
BY A SEPARATE WRITTEN WARRANTY; OR (B) ITEMS OF EQUIPMENT OR ACCESSORIES MANUFACTURED BY PARTIES
OTHER THAN BROAN.

EXCEPT AS SPECIFICALLY STATED IN THE PARAGRAPH IMMEDIATELY ABOVE, BROAN MAKES NO WARRANTY OR REP­RESENTATION, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE. THE WARRANTY SET FORTH IN THE PRECEDING PARAGRAPH AND THE OB­LIGATIONS AND LIABILITIES OF BROAN THEREUNDER REPRESENT CUSTOMER’S SOLE AND EXCLUSIVE REMEDIES
AND ARE EXPRESSLY MADE IN LIEU OF ANY AND ALL OTHER REMEDIES, WARRANTIES, GUARANTIES OR LIABILITIES,
EXPRESS OR IMPLIED, ALL OF WHICH ARE HEREBY EXPRESSLY WAIVED BY CUSTOMER. THERE ARE NO WARRANTIES
WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. IN NO EVENT SHALL BROAN’S LIABILITY HERE­UNDER EXCEED THE PURCHASE PRICE FOR THE PRODUCTS. ADDITIONALLY, BROAN SHALL NOT BE LIABLE FOR ANY
SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE WHATSOEVER.

Broan reserves the right to modify, alter or improve any products or equipment manufactured by Broan without incurring any duty or
obligation to modify, alter, improve or replace any of the Products covered hereby.

THIS WARRANTY SETS FORTH THE PARTIES’ FINAL, COMPLETE AND EXCLUSIVE AGREEMENT CONCERNING THE
PRODUCTS AND BROAN’S WARRANTY OBLIGATIONS. NO AFFIRMATION OF FACT, PROMISE, DESCRIPTION, DEMON­STRATION, SAMPLE OR MODEL CONSTITUTES A WARRANTY OR OTHERWISE MODIFIES, EXTENDS OR ALTERS THIS
WARRANTY UNLESS IN A WRITTEN INSTRUMENT SIGNED BY AN AUTHORIZED BROAN OFFICER.

This Warranty shall be governed by and construed in accordance with the laws of the State of Wisconsin. The venue for any action
arising out of or related to this Warranty shall be in Washington County, Wisconsin.

Broan-NuTone LLC Hartford, Wisconsin www.broan.com 800-558-1711

79040170C