NuTone Blower 2730 User Manual

MODELS 2730 & 2736 ECLIPSE  
DOWNDRAFT BLOWER SYSTEM  
READ AND SAVE THESE INSTRUCTIONS  
WARNING  
WARNING  
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 immedi  
ately, EVACUATE AND CALL THE FIRE DEPARTMENT.  
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.  
Ifyouhavequestions,contactthemanufacturerattheaddress  
or telephone number in the warranty.  
2. NEVER PICK UP A FLAMING PAN - You may be burned.  
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  
publishedbytheNationalFireProtectionAssociation(NFPA),  
and the American Society for Heating, Refrigeration and Air  
Conditioning Engineers (ASHRAE), and the local code au-  
thorities.  
3. DO NOT USE WATER, including wet dishcloths or towels  
- a violent steam explosion will result.  
4. Use an extinguisher ONLY if:  
A. You know you have a Class ABC extinguisher, and you  
already know how to operate it.  
B. The fire is small and contained in the area where it  
started.  
C. The fire department is being called.  
D. You can fight the fire with your back to an exit.  
a Based on “Kitchen Firesafety Tips” published by NFPA.  
CAUTION  
1. For general ventilating use only. Do not use to exhaust  
hazardous or explosive materials and vapors.  
5. When cutting or drilling into wall or ceiling, do not damage  
electrical wiring and other hidden utilities.  
6. Do not use this range hood with an additional speed control  
device.  
2. To avoid motor bearing damage and noisy and/or unbalanced  
impellers, keep drywall spray, construction dust, etc. off  
power unit.  
7. Ducted fans must always be vented to the outdoors.  
8. To reduce the risk of fire, use only metal ductwork.  
9. Do not install this product with the activating switch directly  
behind a burner or element. Minimum distance between the  
switch and the edge of the burner should be 4 inches.  
10.Loose-fitting or hanging clothing should never be worn when  
operating this appliance. They may be ignited by burners/  
elements on cooktop.  
3. Clean filters and grease-laden surfaces frequently.  
4. Do not repair or replace any part of this appliance unless  
specifically recommended in this manual. All other servicing  
should be done by a qualified technician.  
5. Please read specification label on product for further informa-  
tion and requirements.  
11.Children should not be left alone or unattended in the area  
where this appliance is in use.  
12.When flaming foods, turn the blower OFF. An operating  
blower may spread the flames.  
13. This unit must be grounded.  
TO REDUCE THE RISK OF A RANGE TOP GREASE FIRE:  
1. 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.  
2. Always turn hood ON when cooking at high heat or when  
cooking flaming foods.  
3. Clean ventilating fans frequently. Grease should not be  
allowed to accumulate on fan or filter.  
4. Use proper pan size. Always use cookware appropriate for  
the size of the surface element.  
PLANNING  
This downdraft blower system is  
designed to be used to exhaust  
TYPICAL INSTALLATION  
airbornecontaminantswhencook- COUNTER  
CHIMNEY TOP  
TOP  
ing with a variety of gas or electric  
COOK TOP  
cooktops. It can be mounted in  
island, peninsula, or conventional  
wall locations.  
AIR  
VENT  
GEAR  
This unit can be easily installed  
following these basic steps:  
MOTOR  
COVER  
Cut out the countertop  
opening.  
BLOWER  
BOX  
Mount the unit in the  
cabinet.  
120 VAC  
GROUNDED  
OUTLET  
Connect the ductwork  
and electrical.  
TO REDUCE THE RISK OF INJURY TO PERSONS IN THE  
EVENT OF A RANGE TOP GREASE FIRE, OBSERVE THE  
FOLLOWINGa:  
Install the cooktop.  
3-1/4" X 10"  
DUCT CONNECTOR  
INSTALLER: Save this manual for Electrical Inspector and Homeowner to use.  
HOMEOWNER: Use and Care Information on Page 5.  
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PREPARATION  
CUT COUNTERTOP OPENING  
1. Lay out and cut the cooktop cut-out far enough FORWARD  
so downdraft will fit behind it.  
CHANGING BLOWER DISCHARGE (Optional)  
2. Set cooktop in place and slide it as far forward as possible.  
Center and square it with edges of countertop.  
The blower is shipped with its discharge facing DOWN. Follow  
these steps ONLY if:  
the position of the blower discharge needs to be moved  
so ductwork does not interfere with floor joists, plumb  
ing or wiring below.  
it is necessary to rotate the blower discharge to the  
RIGHT or LEFT.  
Place the unit on its back on a table or work surface.  
DOWN DISCHARGE - MOVING BLOWER LEFT OR RIGHT  
SHEET  
METAL  
BLOWER  
NUTS  
SCREW  
CLAMP  
CHANNEL  
3. Place the plastic template against the back flange of the  
cooktop and center it. Trace around template to mark the  
downdraft opening.  
4. Remove cooktop from countertop.  
5. Cut downdraft opening. Be careful not to chip edges of  
countertop.  
BOTTOM  
FLANGE  
1. Loosen the 4 nuts and 2 clamp channels.  
2. Slide blower to desired position.  
3. Use supplied cover plate to close open space (if any).  
MOUNT THE UNIT  
4. Tighten wing nuts to secure top of blower and use sheet metal  
screws through bottom flange to secure bottom of blower.  
MOUNTING SCREWS  
LEVELING BRACKET -  
FLANGE FACING OUT  
LEFT OR RIGHT DISCHARGE  
BLOWER  
NUT  
MOTOR  
PLUG  
CL
CH
LEVELING BRACKET  
FLANGE FACING IN  
-
SHEET  
METAL  
SCREW  
VER PLATE  
1. Set downdraft into opening. Extend leveling brackets to floor  
of cabinet so downdraft sits straight. (Note: Leveling brackets  
can be removed and re-attached in other positions. Bottom  
flange may have to face inward in tight cabinet installations.)  
1. Remove the 4 nuts and 2 clamp channels.  
2. Carefully lift blower and disconnect motor plug if necessary.  
Reposition blower and RECONNECT MOTOR PLUG.  
2. Secure the downdraft to the countertop as follows: Hold the  
downdraft against the back of countertop cut-out and tighten-  
ing the 2 mounting screws (one on each end of unit) on  
underside of countertop. Use a wood shim between screw  
and underside of granite countertops.  
3. Use supplied cover plate to close open space (if any).  
4. Replace clamp channels and use nuts to secure the blower  
in its new position.  
5. Use sheet metal screws through bottom flange to secure  
bottom of blower.  
3. Screw leveling brackets to bottom of cabinet. Tighten screws  
holding leveling bracket to unit on each side.  
3
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INSTALL DUCTWORK  
WIRING DIAGRAM  
CAUTION-BEFORECUTTINGHOLEINCABINETFORDUCT-  
WORK: Check for interference with floor joists, wall studs,  
electrical wiring or plumbing.  
ç
BLOWER è  
3-1/4" X 10"  
TO 6" RD.  
TRANSITION  
COLLAR  
SCREWS  
6" RD.  
ELBOW &  
DUCT-  
WORK  
INSTALL COOKTOP  
1. Align the cooktop with the downdraft and fasten cooktop in  
place.  
Note: Accurate alignment of cooktop and downdraft is necessary  
to ensure that there is no interference when air vent is raised and  
lowered. There should be a gap of 1/32"-1/16" between the back  
of the cooktop and the front of the downdraft cover.  
1. Cut hole in cabinet as well as holes in wall or floor as  
necessary.  
2. Mount the roof or wall cap and work back towards the cabinet,  
attaching all ductwork, elbows and transitions as previously  
planned. Tape all ductwork connections to make them secure  
and air tight.  
ADJUSTMENT  
The downdraft is factory-adjusted for proper operation. How-  
ever, shipping and handling may affect the position of the  
activating switch.  
3. Connect ductwork (and transition, if required) to downdraft. If  
necessary, LOOSEN nuts and screws that hold the blower in  
place, and slide blower left or right to meet ductwork. Re-  
tighten screws and nuts.  
To adjust position of activating switch:  
WARNING: To avoid possible electrical  
shock, personal injury or death -  
Disconnect electrical power.  
Note: A 3-1/4" x 10" collar is provided for installers who prefer to  
rivet the ductwork to the unit. This will allow blower to be removed  
and replaced easily in service situations without disturbing  
ductwork.  
1. If downdraft is plugged into electrical outlet, unplug it.  
2. Lift air vent straight up and cock it slightly so it remains in the  
UP position.  
INSTALL ELECTRICAL WIRING  
1. Mount a standard wiring box, with 3-pronged receptacle,  
inside the cabinet. Make sure the downdraft’s power cord can  
easily reach it.  
SWITCH  
MEMBRANE  
2. Run appropriate power cable into cabinet and connect it to  
receptacle.  
SCREWS  
3. Plug the downdraft’s power cord into the outlet.  
SWITCH  
COVER  
SWITCH  
BRACKET  
3. Remove switch cover from right end of air vent.  
4. Loosen the 2 screws holding the switch bracket in place.  
Position switch bracket so that activating switch just comes in  
contact with underside of switch membrane. Tighten screws.  
5. Replace switch cover, gently lower air vent into chimney, and  
plug in power cord. Re-connect electrical power and check  
operation.  
4
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USE AND CARE  
USE AND CARE - (Continued)  
CLEANING  
Always turn the downdraft blower on before you begin cooking to  
establish an air flow in the kitchen. Let the blower run for a few  
minutes to clean the air after you turn the cooktop off. This will  
keep the whole kitchen cleaner and brighter.  
WARNING: Always disconnect electric  
power supply before cleaning unit.  
Use a mild detergent suitable for painted surfaces. DO NOT USE  
ABRASIVE CLOTH, STEEL WOOL PADS, OR SCOURING  
POWDERS. Vacuum blower to clean. Do not immerse blower in  
water.  
CONTROLS  
Wash the 2 aluminum grease filters in a mild detergent solution  
or a dishwasher. Remove them from the air vent by grasping the  
tab at the top of each filter.  
Note: The filters are different sizes. Be sure to replace them as  
removed, (wider one on the left), with tabs UP.  
Turn the downdraft blower ON by pressing down on the activating  
switch. The air vent will rise.  
KNOB  
SERVICING  
WARNING: Always disconnect electric  
power supply before servicing unit.  
The blower can be turned ON or OFF and its speed can be  
adjusted with the recessed knob on the right side of the air vent.  
It may be necessary to remove the downdraft blower system  
from the cabinet in order to service components such as the  
blower motor or air vent mechanism.  
Disconnect power to the cooktop and remove it first. Reverse the  
steps under “MOUNT THE UNIT” to remove the downdraft from  
the cabinet.  
Service parts are available from your local Broan distributor or  
from the Broan Service Department, P.O. Box 140, Hartford, WI  
53027 Phone: 1-800-637-1453.  
Turn the downdraft blower OFF by pressing the activating switch  
again. The air vent will go down and the blower will shut OFF.  
Note: For most convenient operation, set the blower to your  
favorite speed. The blower will come on to this speed whenever  
the activating switch is pressed and the air vent rises.  
5
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SERVICE PARTS  
Models 2730 & 2736  
Downdraft Blower Systems  
KEY NO.  
PART NUMBER  
93400038  
99400061  
99400024  
93470012  
97011238  
97010714  
99260491  
99360165  
99100484  
97009972  
97011293  
97010993  
98007642  
98007780  
98008168  
97011325  
DESCRIPTION  
QTY.  
1
1
2
Bushing, 7/8"  
Bushing, Split Heyco, 5/8"  
Bushing, Heyco, 1/2"  
Roller  
1
3
1
4
1
5
Switch Assembly, Up/Down  
Wire Harness, Speed Control  
Nut, 3/8-32  
1
6
1
7
1
8
Knob  
1
9
Motor Insolator  
3
10  
11  
12  
16  
17  
18  
19  
Lower Switch Bracket Assembly  
Green Ground Wire  
Wire Harness  
1
1
1
Back-up Plate  
1
Crank  
1
Switch Cover  
1
Chimney Assembly with Slide (Model 2730)  
1
97011326  
Chimney Assembly with Slide (Model 2736)  
1
20  
21  
22  
23  
24  
25  
26  
99080362  
99020247  
98008167  
99710032  
97011259  
97011260  
97011322  
Motor (with Capacitor-Key No. 73)  
Blower Wheel  
1
1
1
3
1
1
1
Scroll Box Extension  
OPTIONAL DOOR KITS  
Spacer  
Top Bracket Assembly, Right  
Top Bracket Assembly, Left  
Top, Stainless (Model 2730)  
MODELNO.  
DESCRIPTION  
30"White  
273001C  
273002C  
273023C  
273601C  
273602C  
273623C  
30" Biscuit  
36" Black  
97011323  
Top, Stainless (Model 2736)  
1
28  
29  
30  
97010991  
97011443  
97010994  
Scroll Box Assembly  
1
1
1
36"White  
Gear Motor Cover  
Air Box Assembly (Model 2730)  
36" Biscuit  
36" Black  
97010992  
Air Box Assembly (Model 2736)  
1
31  
32  
33  
98008150  
98008157  
97009786  
Scroll Box Cover  
1
1
1
Capacitor Strap  
Filter Kit (Model 2730) (contains 2 fliters)  
97009787  
Filter Kit (Model 2736) (contains 2 fliters)  
1
45  
46  
47  
49  
50  
51  
52  
53  
99090905  
99080295  
99110850  
99170245  
99150471  
99150491  
99150488  
98008158  
End Cap  
1
1
Gearmotor  
Slide Strip  
4
Screw, #8-18 x .375 SLT HX WS HD  
Screw, #10-32 x .500 HX WS BDRH  
Screw, #8-18 x .375 SR PH TRH  
Screw, #8-18 x .500 No. 5 PH Trim  
Cover, Air Box Opening (Model 2730)  
19  
2
6
2
1
98008185  
Cover, Air Box Opening (Model 2736)  
1
54  
55  
99260488  
98008144  
Nut, #10-24  
4
1
Air Box Cover (Model 2730)  
98008169  
Air Box Cover (Model 2736)  
1
56  
57  
58  
59  
60  
61  
62  
64  
65  
66  
67  
68  
70  
71  
73  
74  
75  
84  
97011500  
98008159  
99150536  
99250927  
99160225  
99160356  
99160361  
99260437  
99260477  
99380633  
99400048  
93260447  
98008415  
93270493  
99271000  
99160382  
99150415  
99100503  
Gearmotor Bracket Assembly  
Leg Support  
1
2
5
2
4
1
1
7
3
1
1
1
2
3
1
2
2
1
Screw, 1/4-20 x 5/16  
Washer, 1/4  
Screw, #8-32 x 1/2 PH HD MS  
Screw, #10-24 x 3/8 SH WH LOCK  
Screw, #10-24 x 3/8 PH FL HD LD  
Nut, 10-24 HEX KEPS  
Nut, 1/4-20 WHIZ LOCK  
U-Bolt, 10-24  
Strain Relief  
Nut, Hex Flange  
Wire Channel Clamp  
Wire Tie  
Capacitor  
Screw, 1/4-20 x 1.250 HEX HD  
#8-18 x .250 PH TR HD BPT  
Seal - Foam (30")  
99100504  
97011311  
Seal - Foam (36")  
1
**  
**  
**  
Blower Assembly, Complete (Includes Key Nos.  
2, 9, 20, 21, 22, 28, 31, 32, 49, 58, 64, 65, & 73)  
Chimney Assembly, Complete (Model 2730)  
(Includes Key Nos. 5, 8, 19, 45, 51, 52, & 71)  
Chimney Assembly, Complete (Model 2736)  
(Includes Key Nos. 5, 8, 19, 45, 51, 52, & 71)  
97011320  
97011321  
*Standard Hardware - May be purchased locally.  
**Service Assembly - Contains numerous parts.  
6
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SERVICE PARTS  
Models 2730 & 2736  
Downdraft Blower Systems  
84  
7
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WARRANTY  
BROAN-NUTONE ONE YEAR LIMITED 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 MER-  
CHANTABILITY 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  
maintenanceorrepair(otherthanbyBroan-Nutone),faultyinstallationorinstallationcontrary  
to recommended installation instructions.  
The duration of any 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 or exclusion 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.  
Toqualifyforwarrantyservice,youmust(a)notifyBroan-Nutoneattheaddressstatedbelow  
or telephone: 1-800-637-1453, (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, 926 West State Street, Hartford, WI 53027 (1-800-637-1453)  
NuTone, Inc., 4820 Red Bank Road, Cincinnati, OH 45227 (1-800-543-8687)  
99041818L  
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