Cosmo IRH Series Product information sheet

Rev.23.10
INSERT RANGE HOOD
COS-30IRHP
COS-36IRHP
INSTALLATION INSTRUCTIONS
AND USE & CARE GUIDE
READ AND SAVE THESE INSTRUCTIONS.
FOR RESIDENTIAL USE ONLY.
PLEASE LEAVE THESE INSTRUCTIONS WITH THIS UNIT FOR
THE OWNER.
PLEASE RETAIN THESE INSTRUCTIONS FOR FUTURE
REFERENCE.
IMPORTANT:
INSTALLER:
OWNER:
IRH RANGE HOOD SERIES
COS-30IRHS
COS-36IRHS

2
THANK YOU FOR YOUR PURCHASE
Thank you for your purchase. We know that you have many brands and
products to choose from and we are honored to know that you have decided
to take one of our products into your home and hope that you enjoy it.
COSMO Appliances are designed according to the strictest safety and
performance standard for the North American market. We follow the most
advanced manufacturing philosophy. Each appliance leaves the factory after
thorough quality inspection and testing. Our distributors and our service
partners are ready to answer any questions you may have regarding how to
install, use and care for your products. We hope that this manual will help you
learn to use the product in the safest and most effective manner.
Before using this product, please read through this manual carefully. Keep
this user manual in a safe place for future reference. Please ensure that other
persons using this product are familiar with these instructions as well.
If you have any questions or concerns, please contact the dealer from whom you
purchased the product, or contact our Customer Support at:
1-888-784-3108
Reach us online at:
www.cosmoappliances.com

3
TABLE OF CONTENTS
RANGE HOOD SAFETY........................................................................................ 4
Important Safety Instructions ................................................................................. 5
INSTALLATION REQUIREMENTS ........................................................................ 7
Tools and Parts .......................................................................................................... 7
Location Requirements ............................................................................................ 9
Product Dimensions ................................................................................................ 10
Cabinet Clearances ..................................................................................................11
Venting Requirements............................................................................................. 12
Electrical Requirements........................................................................................... 16
INSTALLATION INSTRUCTIONS......................................................................... 17
Prepare Location ...................................................................................................... 17
Install Range Hood .................................................................................................20
Complete Installation.............................................................................................. 21
RANGE HOOD USE ............................................................................................ 22
Controls..................................................................................................................... 22
RANGE HOOD CARE ......................................................................................... 24
Cleaning.................................................................................................................... 24
Replacing the Charcoal Filter ............................................................................... 25
Replacing the LED Light ......................................................................................... 26
LIMITED WARRANTY ........................................................................................ 27

4
RANGE HOOD SAFETY
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE
WARNING: This appliance is intended for normal indoor residential use. It is
not approved for commercial use, outdoor installation, installation over an
outdoor BBQ grill, or any other application not specifically allowed by this
manual. Damage from improper installation or use of this appliance is not
covered by the product warranty.
Your safety and the safety ofothers are very important.
We have provided many important safety messages in this manual and on
your appliance. Always read and obey all safety messages.
WARNING
This is the safety alert symbol.
This symbol alerts you to potential hazards that
can kill or hurt you and others.
All safety messages will follow the safety alert
symbol and either the word "WARNING" or
"CAUTION." These words mean:
CAUTION
You can be killed or seriously injured if you
don't follow instructions.
A potentially hazardous situation which, if not
avoided, could result in minor or moderate
injury.
All safety messages will tell you what the potential hazard is, tell you how to
reduce the chance of injury, and tell you what can happen if the instructions
are not followed.
California Proposition 65 Warning
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

5
IMPORTANT SAFETY INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF
FIRE, ELECTRIC SHOCK, OR INJURY
TO PERSONS, OBSERVE THE
FOLLOWING:
•Use this unit only in the manner
intended by the manufacturer. If
you have questions, contact the
manufacturer.
•Before servicing or cleaning the
unit, switch the power off at the
service panel and lock the
service panel 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.
•Installation work and electrical
wiring must be done by qualified
person(s) in accordance with all
applicable codes and standards,
including fire-rated construction.
•Do not operate any fan with a
damaged cord or plug. Discard
fan or return to an authorized
service facility for examination
and/or repair.
•Ducted fans must always be
vented to the outdoors.
-CAUTION: For general
ventilating use only. Do not
use to exhaust hazardous or
explosive materials and
vapors.
-CAUTION: To reduce the risk
of fire and to properly
exhaust air, be sure to duct
air outside - do not vent
exhaust air into spaces
within walls or ceilings, or
into attics, crawl spaces or
garages.
•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), the
American Society for Heating,
Refrigeration and Air
Conditioning Engineers
(ASHRAE), and the local code
authorities.
•When cutting or drilling into the
wall or ceiling; do not damage
electrical wiring and other
hidden utilities.
WARNING: TO REDUCE THE RISK OF
A RANGE TOP GREASE FIRE:
•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.
READ AND SAVE THESE INSTRUCTIONS

6
IMPORTANT SAFETY INSTRUCTIONS
•Always turn the hood ON when
cooking at high heat or when
flambéing food (i.e. Crepes
Suzette, Cherries Jubilee,
Peppercorn Beef Flambé).
•Clean ventilating fans
frequently. Grease should not be
allowed to accumulate on the
fan or filter.
•Use proper pan sizes. Always use
cookware appropriate for the
size of the surface element.
WARNING: TO REDUCE THE RISK OF
INJURY TO PERSONS IN THE EVENT
OF A RANGE TOP GREASE FIRE,
OBSERVE THE FOLLOWING:*
•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.
•NEVER PICK UP A FLAMING PAN
-you may be burned.
•DO NOT USE WATER, including
wet dishcloths or towels - a
violent steam explosion will
result
•Use an extinguisher ONLY if:
-You know you have a class
ABC extinguisher, and you
already know how to
operate it.
-The fire is small and
contained in the area where
it started.
-The fire department is being
called.
-You can fight the fire with
your back to an exit.
* Based on "Kitchen Fire Safety Tips"
published by NFPA.
WARNING: TO REDUCE THE RISK OF
FIRE, USE ONLY METAL DUCTWORK.
WARNING: To reduce the risk of fire
or electrical shock, do not use this
fan with any solid-state speed
control device.
WARNING: Do not let children near
this appliance. Do not let children
play with this appliance. Keep all
packaging materials out of children’s
reach. Properly dispose the
packaging materials after this
appliance is unpacked.
•The manufacturer declines all
responsibility in the event of
failure to observe the
instructions given here for
installation, maintenance, and
suitable use of the product.
•The manufacturer further
declines all responsibility for
injury due to negligence and the
warranty of the unit
automatically expires due to
improper maintenance.
READ AND SAVE THESE INSTRUCTIONS

7
INSTALLATION REQUIREMENTS
Tools and Parts
Gather the required tools and parts before starting installation. Read and
follow the instructions provided with any tools listed here.
Tools Needed
•Level
•Drill with 1/8" (3 mm) and 3/4" (19 mm) drill bits
•Pencil
•Wire stripper or utility knife
•Tape measure or ruler
•Pliers
•Caulking gun and weatherproof caulking compound
•Jigsaw or keyhole saw
•Metal snips
•Phillips screwdriver
Parts Needed
For ducted installations, you will need:
•Duct system
For ductless (recirculating) installations, you will need:
•Charcoal Filter Kit. See the "Optional Parts" section to order.
For installations inside cabinet, you will need:
•Front and rear wood stud supports. If space allowed, the addition of left
and right wood stud supports is recommended. Length and thickness
determined by inner cabinet dimensions and recess dimensions. See the
"Product Dimensions" and "Prepare Location" sections.

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Parts Supplied
Remove parts from packages. Check that all parts are included.
•Range hood main core with LED light bulbs installed
•Metal filters
•Damper (pre-installed)
•Oil tray
•4 x 30 mm wood screws (12 + 2 spares)
Optional Parts
To purchase these or any other accessories, please visit
www.cosmoappliances.com or reference the contact information at the end
of this manual.
•Charcoal filter kit

9
Location Requirements
IMPORTANT:
•Observe all governing codes and ordinances.
Have a qualified technician install the range hood. It is the installer’s
responsibility to comply with installation clearances specified on the
model/serial/rating plate. The model/serial rating plate is located inside the
range hood on the rear wall of the range hood.
Range hood location should be away from strong draft areas, such as
windows, doors, and strong heating vents.
Cabinet opening dimensions that are shown must be used. Given dimensions
provide minimum clearance. Consult your cooktop/range manufacturer
installation instructions before making any cutouts.
Grounded electrical outlet is required. See the "Electrical Requirements"
section.
The range hood is factory set for venting through the roof or wall. For ductless
(recirculating) installations see "Ductless (Recirculating) Installation Through
the Soffit/Cabinet" in the "Prepare Location" section. Charcoal filters are
required for ductless (recirculating) installations. See "Optional Parts" in the
"Tools and Parts" section to order.
All openings in ceiling and wall where range hood will be installed must be
sealed.
For Mobile Home Installations:
The installation of this range hood must conform to the Manufactured Home
Construction Safety Standards, Title 24 CFR, Part 328 (formerly the Federal
Standard for Mobile Home Construction and Safety, Title 24, HUD, Part 280)
or when such standard is not applicable, the standard for Manufactured
Home Installation 1982 (Manufactured Home Sites, Communities and Setups)
ANSI A225.1/NFPA 501A or latest edition, or with local codes.

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Product Dimensions
30" Models: COS-30IRHP / COS-30IRHS
36" Models: COS-36IRHP / COS-36IRHS
8 ¹⁄₁₆ in
(20.5 cm)
1 ¹⁄₈ in
(2.8 cm)
⁹⁄₁₆ in
(1.5 cm)
5 ¹⁵⁄₁₆ in
(15.0 cm)
20 ⁵⁄₁₆ in
(51.6 cm)
2 ⁷⁄₁₆ in
(6.2 cm)
10 ¹⁄₄ in
(26.0 cm)
11 ³⁄₈ in
(28.9 cm)
(30.0 cm)
11 ¹³⁄₁₆ in
(45.0 cm)
17 ³⁄₄ in
(66.0 cm)
26 in
(70.5 cm)
27 ³⁄₄ in
(14.0 cm)
5 ¹⁄₂ in
(25.6 cm)
10 ¹⁄₁₆ in
(29.1 cm)
11 ⁷⁄₁₆ in
8 ¹⁄₁₆ in
(20.5 cm)
1 ¹⁄₈ in
(2.8 cm)
⁹⁄₁₆ in
(1.5 cm)
5 ¹⁵⁄₁₆ in
(15.0 cm)
28 ¹⁄₈ in
(71.5 cm)
2 ⁷⁄₁₆ in
(6.2 cm)
10 ¹⁄₄ in
(26.0 cm)
11 ³⁄₈ in
(28.9 cm)
(30.0 cm)
11 ¹³⁄₁₆ in
(65.0 cm)
25 ⁹⁄₁₆ in
(86.1 cm)
33 ⁷⁄₈ in
(90.0 cm)
35 ⁷⁄₁₆ in
(14.0 cm)
5 ¹⁄₂ in
(25.6 cm)
10 ¹⁄₁₆ in
(28.9 cm)
11 ³⁄₈ in

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Cabinet Clearances
Given dimensions are minimum clearances.
Model A
30" Models: COS-30IRHP / COS-30IRHS 27.8" (70.5 cm)
36" Models: COS-36IRHP / COS-36IRHS 35.4" (90.0 cm)
IMPORTANT:
•25.6" (65.0 cm) minimum and 29.5" (75.0 cm) suggested maximum
clearances between cooking surface and bottom of the range hood or
the cabinet.
•For ducted wall venting installations using a 90° elbow, 12" (30.5 cm)
minimum overhead cabinet clearance below the wall venting opening is
required.
Insert Range Hood
12 in
(30.5 cm)
Overhead
Cabinet
Depth
36 in
(91.4 cm)
in 18
(45.7 cm)
25.6 in
(65.0 cm)
A
12 in
(30.5cm)
Overhead
Cabinet
Height
(Ductless)

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Venting Requirements
(Ducted installations only)
•Duct system must terminate to the outdoors, except for ductless
(recirculating) installations.
•Do not terminate the duct system in an attic or other enclosed area.
•Do not use 4" (10.2 cm) laundry-type wall cap.
•Use metal duct only. A rigid metal duct is recommended. Plastic or metal
foil duct is not recommended.
•The length of duct system and number of elbows should be kept to a
minimum to provide efficient performance.
For the most efficient and quiet operation:
•Use rigid metal duct.
•Use no more than three 90° elbows.
•Make sure there is a minimum of 24" (61.0 cm) of straight duct between
the elbows if more than 1 elbow is used.
•Do not install 2 elbows together.
•Use clamps to seal all joints in the duct system.
•The duct system must have a damper. If the roof or wall cap has a
damper, do not use the damper supplied with the range hood.
•Use caulking to seal exterior wall or roof opening around the cap.
•The size of the duct should be uniform.
Cold Weather Installations:
An additional backdraft damper should be installed to minimize backward
cold air flow and a thermal break should be installed to minimize conduction
of outside temperatures as part of the duct system. The damper should be on
the cold air side of the thermal break.
The break should be as close as possible to where the duct system enters the
heated portion of the house.
Makeup Air:
Local building codes may require the use of makeup air systems when using
ventilation systems greater than specified CFM of air movement. The specified
CFM varies from locale to locale. Consult your HVAC professional for specific
requirements in your area.

13
Venting Methods
This range hood is factory set for venting through the roof or through the wall.
The duct system needed for installation is not included.
A 6" (15.2 cm) round duct system is recommended.
Roof Venting Wall Venting
A. 6" (15.2 cm) round duct
through the roof
B. Roof cap
A. 6" (15.2 cm) round duct
through the wall
B. Wall cap
A
B
A
B

14
Calculating Duct System Length
The recommended duct system is 6" (15.2 cm) round duct with a maximum
length of 35 ft (10.7 m). For the best performance, use no more than three 90°
elbows.
To calculate the length of the system you need, add the equivalent feet
(meters) for each duct piece used in the system.
Duct Piece 6" (15.2 cm) Round
45° elbow 2.5 ft (0.8 m)
90° elbow 5.0 ft (1.5 m)
Maximum equivalent duct length is 35 ft (10.7 m).
Example Duct System - 6" (15.2 cm)
90˚ elbow Wall cap
6 ft (1.8 m)
3 ft
(0.93 m)
Maximum length = 35 ft (10.7 m)
1 - 90° elbow
1 – wall cap
6 ft (1.8 m) straight
3 ft (0.9 m) straight
= 5.0 ft (1.5 m)
= 0.0 ft (0.0 m)
= 6.0 ft (1.8 m)
= 3.0 ft (0.9 m)
System length = 14.0 ft (4.3 m)

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Ductless (Recirculating) Installations Through the
Soffit/Cabinet
If it is not possible to vent cooking fumes and vapors to the outside, the range
hood can be used in the ductless (recirculating) version, using a charcoal filter.
To order, see "Optional Parts" in the "Tools and Parts" section. Damper
installation is not required.
A. Ceiling
B. Duct cover
C. Soffit
D. 6" (15.2 cm) duct
E. Range hood
F. Cabinet
G. Top of cabinet
H. Ceiling or soffit
I. Duct system
I
E
G
BH
D
E
A
B
F
C
D
F
B
A
E

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Electrical Requirements
Observe all governing codes and ordinances.
Ensure that the electrical installation is adequate and in conformance with
National Electrical Code, ANSI/NFPA 70 (latest edition), or CSA Standards
C22.1-94, Canadian Electrical Code, Part 1 and C22.2 No. 0-M91 (latest edition)
and all local codes and ordinances.
If codes permit and a separate ground wire is used, it is recommended that a
qualified electrician determine that the ground path is adequate.
A copy of the above code standards can be obtained from:
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02169-7471
CSA International
8501 East Pleasant Valley Road
Cleveland, OH 44131-5575
•A 120-volt, 60 Hz., AC-only, 2-amp, fused electrical circuit is required.
•If the house has aluminum wiring, follow the procedure below:
-Connect a section of solid copper wire to the pigtail leads.
-Connect the aluminum wiring to the added section of copper wire
using special connectors and/or tools designed and UL Listed for
joining copper to aluminum.
-Follow the electrical connector manufacturer's recommended
procedure. Aluminum/copper connection must conform with local
codes and industry accepted wiring practices.
•Wire sizes and connections must conform with the rating of the appliance
as specified on the model/serial/rating plate. The model/serial/rating
plate is located behind the left filter on the rear wall of the range hood.
•Wire sizes must conform to the requirements of the National Electrical
Code, ANSI/NFPA 70 (latest edition), or CSA Standards C22. 1-94,
Canadian Electrical Code, Part 1 and C22.2 No. 0-M91 (latest edition) and
all local codes and ordinances.

17
INSTALLATION INSTRUCTIONS
Prepare Location
•It is recommended that the duct system be installed before the range
hood is installed.
•Before making cutouts, make sure there is proper clearance within the
ceiling or wall for duct fittings.
•Remove installations parts carefully. Wear hand gloves to protect against
sharp edges.
•Remove the foams, tapes, and protective films covering the product
before putting it into operation.
•Confirm that all installations parts have been removed from the shipping
carton and the range hood canopy.
WARNING EXCESSIVE WEIGHT HAZARD
•Use two or more people to move and install range hood.
•Failure to do so can result in back or other injury.
1. Disconnect power.
2. Determine which venting method to use: roof, wall, or ductless.
3. Select a flat surface for assembling the range hood. Place covering over
that surface.
4. Using 2 or more people, lift range hood onto covered surface.

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Range Hood Cabinet Cutout
1. Determine and clearly mark the centerlines on the underside of the
cabinet.
2. Measure and mark lines for the cutout area as shown.
3. Drill a hole at each corner within the cutout area, and use a saber saw or
keyhole saw to cut an opening through the underside of the cabinet.
4. Complete cabinet preparation following the instructions for your type of
installation.
Venting Outside Through the Roof/Wall
Assemble the duct that you will use over the duct opening. Do not attach
the duct at this time. Depending on your duct system, measure and mark
the cabinet cutout accordingly. Use a saber saw or keyhole saw to cut a
round opening through the top of the cabinet and the roof for the roof
vent or the back of the cabinet and the exterior wall for the wall vent.
Roof Venting Wall Venting
6¼"
(15.9 cm)
Cutout Centerline
Centerline
Cutout
10.83 in
(27.5 cm)
36" Model: 34.65 in (88.0 cm)
30" Model: 26.75 in (67.9 cm)

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Ductless (Recirculating) Installation Through the Soffit/Cabinet
The range hood can be vented inside through the top of the cabinet.
Measure and mark a round duct opening in the cabinet ceiling or in the
soffit above the duct opening of the range hood. Use a saber saw or
keyhole saw to cut a round opening for the soffit/cabinet vent.
For ductless (recirculating) installations, charcoal filters are necessary. See
the "Range Hood Care" section for instructions on installing charcoal
filters.
5. Install the duct system according to the method needed. Use caulking to
seal any exterior wall or roof opening.
6. Check and verify the round damper is properly installed into the duct
opening of the range hood. For ductless (recirculating) installations,
damper is not required.
6¼"
(15.9 cm)
Cutout
Centerline

20
Install Range Hood
WARNING EXCESSIVE WEIGHT HAZARD
•Use two or more people to move and install range hood.
•Failure to do so can result in back or other injury.
1. Remove the blue/clear protective films and any other remaining
packaging materials from the range hood and the metal filters.
2. Using 2 or more people, carefully lift and hold the range hood into the
cabinet final position. (The power cord is extended from the top of the
range hood.)
3. Install front and rear wood stud supports by securing the provided wood
screws (8) from inside of the range hood. If space allows, install left and
right wood stud supports with the provided wood screws (4).
Note: For some installations it may be easier to place front and rear wood
stud supports inside the cabinet before lifting the range hood into its final
location.