Cosmo COS-GRC305KTD User manual

Rev.23.11
GAS RANGE
COS-GRC305KTD
USER MANUAL
IMPORTANT:
INSTALLER:
OWNER:
30" SLIDE-IN RANGE
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.

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
RANGE SAFETY.................................................................................................... 5
Anti-tip Device ........................................................................................................... 7
Important Safety Instructions ................................................................................. 8
OVERVIEW.......................................................................................................... 12
Range Layout............................................................................................................ 12
Control Panel ............................................................................................................ 13
FEATURES ...........................................................................................................15
Clock ........................................................................................................................... 15
Timer...........................................................................................................................16
Settings ...................................................................................................................... 17
Oven Light ................................................................................................................20
Lock............................................................................................................................20
OPERATION........................................................................................................ 21
Gas Surface Burners ................................................................................................ 21
Before Using the Gas Surface Burners ............................................................ 21
Using the Gas Surface Burners ........................................................................ 22
Using the Proper Cookware.............................................................................. 23
Oven .......................................................................................................................... 25
Before Using the Oven ...................................................................................... 25
Before Using the Oven for the First Time ....................................................... 25
Oven Vent ............................................................................................................ 26
Oven Door............................................................................................................ 26
Using Oven Racks ............................................................................................... 26
Preheating ........................................................................................................... 27
Cooking Modes................................................................................................... 28
Pizza...................................................................................................................... 29
Air Fry.................................................................................................................... 29
Bake ......................................................................................................................30
Broil ........................................................................................................................ 31
Keep Warm.......................................................................................................... 32
Convect Roast ..................................................................................................... 32
TABLE OF CONTENTS

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Convect Bake ...................................................................................................... 33
Proof......................................................................................................................34
Cook Time ............................................................................................................ 35
Delay..................................................................................................................... 36
Using the Sabbath Mode.................................................................................. 38
Tips and Techniques ......................................................................................... 40
RANGE CARE AND MAINTENANCE.................................................................. 47
Manual Cleaning .................................................................................................... 47
Self/Steam Clean ....................................................................................................50
Steam Clean........................................................................................................50
Self Clean............................................................................................................. 52
TROUBLESHOOTING......................................................................................... 54
Cooktop Problems...................................................................................................54
Oven Problems ........................................................................................................ 56
LIMITED WARRANTY ........................................................................................ 59

5
RANGE SAFETY
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE
In the State of Massachusetts, the following installation instructions apply:
•Installations and repairs must be performed by a qualified or licensed
contractor, plumber, or gasfitter qualified or licensed by the State of
Massachusetts.
•If using a ball valve, it shall be a T-handle type.
•A flexible gas connector, when used, must not exceed 3 feet (91.5 cm).
California Proposition 65 Warning
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on
your appliance. Always read and obey all safety messages.
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:
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.
WARNING
CAUTION

6
FIRE AND EXPLOSION HAZARD
If the information in this manual is not followed exactly, a fire or explosion
may result causing property damage, personal injury or death.
-Do not store or use gasoline or other flammable vapors and liquids in
the vicinity of this or any other appliance.
-WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance.
•Do not touch any electrical switch.
•Do not use any phone in your building.
•Clear the room, building, or area of all occupants.
•Immediately call your gas supplier from a neighbor's phone. Follow
the gas supplier's instructions.
•If you cannot reach your gas supplier, call the fire department.
-Installation and service must be performed by a qualified installer,
service agency or the gas supplier.
Never Operate the Top Surface Cooking Section of this Appliance
Unattended.
•Failure to follow this warning statement could result in fire, explosion, or
burn hazard that could cause property damage, personal injury, or
death.
•If a fire should occur, keep away from the appliance and immediately
call your fire department.
DO NOT ATTEMPT TO EXTINGUISH AN OIL/GREASE FIRE WITH WATER.
WARNING
WARNING

7
WARNING: Gas leaks cannot always be detected by smell.
Gas suppliers recommend that you use a gas detector approved by UL or
CSA. For more information, contact your gas supplier.
WARNING: Do not install a ventilation system that blows air downward
toward this cooking appliance. This type of ventilation system may cause
ignition and combustion problems with this cooking appliance resulting in
personal injury or unintended operation.
WARNING: This appliance is intended for normal residential use. It is not
approved for commercial use, outdoor installation, or any other
application not specifically allowed by this manual.
TIP OVER HAZARD
Making sure the anti-tip bracket is installed:
•Slide range forward.
•Look for the anti-tip bracket securely attached
to floor and wall.
•Slide range back so rear range foot is under
anti-tip bracket.
•A child or adult can tip the range and be killed.
•Install anti-tip bracket to floor or wall per installation instructions.
•Slide range back so rear range foot is engaged in the slot of the anti-tip
bracket.
•Re-engage the anti-tip bracket if range is moved.
•Do not operate the range without anti-tip bracket installed and
engaged.
•Failure to follow these instructions can result in death or serious burns to
children and adults.
WARNING
Anti-Tip
Bracket
Leveling
Leg

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IMPORTANT SAFETY
INSTRUCTIONS
WARNING: To reduce the risk of fire, electrical shock, injury to persons, or
damage when using the range, follow basic precautions, including the
following:
•WARNING: TO REDUCE THE
RISK OF TIPPING OF THE RANGE,
THE RANGE MUST BE SECURED
BY PROPERLY INSTALLED ANTI-
TIP DEVICES. TO CHECK IF THE
DEVICES ARE INSTALLED
PROPERLY, SLIDE RANGE
COMPLETELY FORWARD, LOOK
FOR ANTI-TIP BRACKET
SECURELY ATTACHED TO THE
FLOOR OR WALL, AND SLIDE
RANGE BACK SO THE REAR
RANGE FOOT IS UNDER ANTI-
TIP BRACKET.
•WARNING: NEVER use this
appliance as a space heater to
heat or warm the room. Doing
so may result in carbon
monoxide poisoning and
overheating of the oven.
•WARNING: NEVER cover any
slots, holes or passages in the
oven bottom or cover an entire
rack with materials such as
aluminum foil. Doing so blocks
airflow through the oven and
may cause carbon monoxide
poisoning. Aluminum foil linings
may also trap heat, causing a
fire hazard.
•CAUTION: Do not store items of
interest to children in cabinets
above a range or on the back
guard of a range – children
climbing on the range to reach
items could be seriously injured.
•Do Not Leave Children Alone –
Children should not be left alone
or unattended in area where
range is in use. They should
never be allowed to sit or stand
on any part of the range.
•Wear Proper Apparel – Loose-
fitting or hanging garments
should never be worn while
using the range.
•User Servicing – Do not repair or
replace any part of the range
unless specifically recommended
in the manual. All other servicing
should be referred to a qualified
technician.
•Storage in or on Range –
Flammable materials should not
be stored in an oven or near
surface units.
•This appliance is not intended
for storage.
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9
IMPORTANT SAFETY
INSTRUCTIONS
•Do Not Use Water on Grease
Fires – Smother fire or flame or
use dry chemical or foam-type
extinguisher.
•Use Only Dry Potholders – Moist
or damp potholders on hot
surfaces may result in burns
from steam. Do not let potholder
touch hot heating elements. Do
not use a towel or other bulky
cloth.
•Never Leave Surface Units
Unattended at High Heat
Settings – Boilover causes
smoking and greasy spillovers
that may ignite.
•Glazed Cooking Utensils – Only
certain types of glass,
glass/ceramic, ceramic,
earthenware, or other glazed
utensils are suitable for range-
top service without breaking due
to the sudden change in
temperature.
•Utensil Handles Should Be
Turned Inward and Not Extend
Over Adjacent Surface Units – To
reduce the risk of burns, ignition
of flammable materials, and
spillage due to unintentional
contact with the utensil, the
handle of a utensil should be
positioned so that it is turned
inward, and does not extend
over adjacent surface units.
•Disconnect power before
servicing.
•Proper Installation – The
appliance, when installed, must
be electrically grounded in
accordance with local codes, or
in the absence of local codes,
with the National Electrical
Code, ANSI/NFPA 70 or the
Canadian Electrical Code, CSA
C22.1-02. In Canada, the
appliance must be electrically
grounded in accordance with
Canadian Electrical Code. Be
sure your appliance is properly
installed and grounded by a
qualified technician.
•Injuries may result from misuse
of appliance doors or drawers
such as stepping, leaning, or
sitting on the doors or drawers.
•Maintenance – Keep range area
clear and free from combustible
materials, gasoline, and other
flammable vapors and liquids.
•Do not let cooking grease or
other flammable materials
accumulate in or near the range.
Grease in the oven or on the
cooktop may ignite.
•Top burner flame size should be
adjusted so it does not extend
beyond the edge of the cooking
utensil. This instruction is based
on safety considerations.
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10
IMPORTANT SAFETY
INSTRUCTIONS
•Do not use replacement parts
that have not been
recommended by the
manufacturer (e.g. parts made
at home using a 3D printer).
•Clean Cooktop With Caution – If
a wet sponge or cloth is used to
wipe spills on a hot cooking
area, be careful to avoid steam
burn. Some cleaners can
produce noxious fumes if
applied to a hot surface.
•Use Care When Opening Door –
Let hot air or steam escape
before removing or replacing
food.
•Do Not Heat Unopened Food
Containers – Build-up of
pressure may cause container to
burst and result in injury.
•Keep Oven Vent Ducts
Unobstructed.
•Never broil with door open.
Open-door broiling is not
permitted due to overheating of
control knobs.
•Placement of Oven Racks –
Always place oven racks in
desired location while oven is
cool. If rack must be moved
while oven is hot, do not let
potholder contact hot heating
element in oven.
•Care must be taken to prevent
aluminum foil and meat probes
from contacting heating
elements.
•DO NOT TOUCH HEATING
ELEMENTS OR INTERIOR
SURFACES OF OVEN – Heating
elements may be hot even
though they are dark in color.
Interior surfaces of an oven
become hot enough to cause
burns. During and after use, do
not touch, or let clothing or other
flammable materials contact
heating elements or interior
surfaces of oven until they have
had sufficient time to cool. Other
surfaces of the appliance may
become hot enough to cause
burns – among these surfaces
are cooktop, burners, grates,
oven vent openings and surfaces
near these openings, oven
doors, windows of oven doors,
and crevices around the oven
doors.
•Top burner flame size should be
adjusted so it does not extend
beyond the edge of the cooking
utensil.
•Have the installer show you the
location of the range gas shut-
off valve and how to turn it off if
necessary.
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11
IMPORTANT SAFETY
INSTRUCTIONS
•Proper Disposal of Your
Appliance – Dispose of or recycle
your appliance in accordance
with Federal and Local
Regulations. Contact your local
authorities for the
environmentally safe disposal or
recycling of your appliance.
•Do Not Clean Door Gasket – The
door gasket is essential for a
good seal. Care should be taken
not to rub, damage, or move the
gasket.
•Do Not Use Oven Cleaners – No
commercial oven cleaner or
oven liner protective coating of
any kind should be used in or
around any part of the oven.
•Clean Only Parts Listed in
Manual.
For units with ventilating hood –
•Clean Ventilating Hoods
Frequently – Grease should not
be allowed to accumulate on
hood or filter.
•When flambé cooking under the
vent hood, turn the fan on.
For self-cleaning ranges –
•Before Self-Cleaning the Oven –
Remove broiler pan and other
utensils. Wipe off all excessive
spillage before initiating the
cleaning cycle.
•Wait for the oven to cool before
removing contents and cleaning
the oven.
•In the event of ignition inside the
oven during self-clean, turn off
the oven and wait for the fire to
extinguish. DO NOT FORCE THE
DOOR OPEN.
•If the self-cleaning mode
malfunctions, keep door closed,
turn off the appliance,
disconnect the circuit at the
circuit breaker box, and contact
a qualified service provider for
repairs.
•Some birds are extremely
sensitive to the fumes produced
during a self-clean cycle. Move
birds to another well-ventilated
room.
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12
OVERVIEW
RANGE LAYOUT
The range you have purchased may have some or all of the items listed. The
locations and appearances of the features shown here may not match those
of your model.
1. Oven Vent
2. Grate
3. Oven Control
4. Cooktop Control
Knobs
5. Broil Burner
6. Rack Positions
7. Bake Burner Cover
8. Oven Door Handle
9. Cooling Vent
10. Door Lock
11. Oven Light
12. Door Gasket
13. Convection Fan
14. Door Hinge
15. Storage Drawer
16. Leveling Legs

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WHAT'S INCLUDED
NOTE:
•To purchase replacement parts or any other accessories, please visit
www.cosmoappliances.com or reference the contact information at
the end of this manual.
CONTROL PANEL
COOKTOP
Stronger burners are placed towards the front for higher temperature or
shorter duration cooking, such as boiling, searing, and pan frying. Weaker
burners are placed towards the rear for lower temperature or longer duration
cooking, such as simmer or melting chocolate.
Surface burner grates (3) Surface burners and caps (5) Oven racks (2)

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OVEN
Read the instructions for each feature and cooking mode in this owner's
manual carefully before using the oven.
# Name Description
1 PIZZA To select the Pizza mode.
2 AIR FRY To select the Air Fry mode.
3 BAKE To select the Bake mode.
4 BROIL To select the Broil mode.
5 Display To provide oven status.
6 TIMER To set or cancel the timer.
7 CLOCK
8 KEEP WARM To select the Keep Warm mode.
9 SETTINGS To access and adjust oven settings.
10 CONVECT ROAST To select the Convect Roast mode.
11 CLEAN
12 CONVECT BAKE To select the Convect Bake mode.
13 PROOF To select the Proof mode.
14 Number Pads To enter temperature and all times.
To select the Self Clean / Steam Clean modes.
To set or adjust the clock.

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# Name Description
15 START/ENTER To start all oven functions or accept input.
16 CLEAR/OFF To stop oven operations or clear input.
17 COOK TIME To set the length of the cooking time.
18 DELAY To set delay start time of the cooking.
19 OVEN LIGHT To turn the oven lights on and off.
20 LOCK
1. Press CLOCK, the time in the display will begin to flash.
2. Press the numbers to enter the correct time of day. For example, to set
12:34, press the numbers 1, 2, 3, and 4.
3. Press CLOCK to toggle and select AM or PM.
4. Press START/ENTER to confirm the time entered.
NOTE:
FEATURES
CLOCK
IMPORTANT: The 12-hour clock must be set to the correct time of day for the
automatic oven timing functions to work properly. The time of day cannot be
changed during a timed cooking, timer cycle, or Self/Steam Clean cycle.
Setting the Clock
To deactivate and activate oven control.
•In the event of a power failure, the clock time set will be lost. When the
power returns, "12:00" will flash in the display and clock must be set
again.

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TIMER
The Timer will beep when the set time has run out, and can be used during
any of the other oven control functions. It does not start or stop cooking.
Setting the Timer (Up to 12 Hours)
1. Press TIMER once. "00:00" will show in the display.
2. Press the numbers to enter the length of time. For example, to set a 30-
minute timer, press the numbers 3 and 0.
NOTE:
3. Press START/ENTER to start the timer.
NOTE:
•The set time counting down is shown in the display.
•For remaining time less than an hour, the display shows MM:SS
(minutes : seconds); for remaining time over an hour, the display
shows HH:MM (hours : minutes).
4. Press TIMER to cancel the current timer at any time. When the set time
has run out and the remaining time "00:00" shows in the display, the
alarm rings until any key is pressed.
NOTE:
•Pressing CLEAR/OFF will not cancel the current timer, but will
cancel any oven cooking modes in progress.
•If no numbers are entered, the timer returns to the time of day.

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SETTINGS
The oven has a variety of settings which can be accessed and adjusted using
the SETTINGS button. These settings can only be adjusted or activated while
no oven operation is in progress. They remain in the control's memory after a
power failure or until changed.
Settings Description Default
VOL Volume
•Adjust the tone volume.
2 (MAX)
DISP Display Brightness
•Adjust the brightness of the display.
3 (MAX)
HOLD Keep Warm When Done Mode
•Turn Keep Warm When Done on or off to
automatically turn on "Keep Warm" or turn off
oven at the end of a timed cook.
Off
SABB Sabbath Mode
•Turn Sabbath mode on or off.
Off
DEG Temperature Scale
•Switch the temperature scale between
Fahrenheit and Celsius.
°F
CAL Oven Temperature Calibration
•Adjust the oven offset temperature.
00°F
SALE Demo Mode
•Turn Demo mode on or off.
Off
SETTING TONE VOLUME
1. Press SETTINGS.
2. Press START/ENTER to enter "VOL" setting.
3. Press +or –to toggle and select 0, 1, or 2 (MAX), and press START/ENTER.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.

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SETTING DISPLAY BRIGHTNESS
1. Press SETTINGS.
2. Press +or –repeatedly to select "DISP", and press START/ENTER.
3. Press +or –to toggle and select 1, 2, or 3 (MAX), and press START/ENTER.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.
TURNING ON/OFF KEEP WARM WHEN DONE MODE
Keep Warm When Done mode turns on "Keep Warm" automatically to
maintain oven temperature of 150°F at the end of a timed cook to keep food
warm. This feature only works with cooking modes mentioned in "Cook Time"
section.
1. Press SETTINGS.
2. Press +or –repeatedly to select "HOLD", and press START/ENTER.
3. Press +or –to toggle and select On or Off, and press START/ENTER.
•On: Turn on "Keep Warm" at the end of a timed cooking.
•Off: Turn off oven at the end of a timed cooking.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.
TURNING ON/OFF SABBATH MODE
Sabbath mode is designed for those whose religious observances require
disabling certain oven features. By turning on Sabbath Mode, the oven will
conform to Star-K Jewish Sabbath requirements.
To Turn On/Off Sabbath Mode:
1. Press SETTINGS.
2. Press +or –repeatedly to select "SABB", and press START/ENTER.
3. Press +or –to toggle and select On or Off, and press START/ENTER. A
single bracket "]" will appear in the display indicating that the Sabbath
mode is active.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.

19
SETTING TEMPERATURE SCALE
1. Press SETTINGS.
2. Press +or –repeatedly to select "DEG", and press START/ENTER.
3. Press +or –to toggle and select F or C, and press START/ENTER.
•F: Fahrenheit
•C: Celsius
4. Press CLEAR/OFF or SETTINGS to exit oven settings.
SETTING TEMPERATURE CALIBRATION
This oven may cook differently than the one it replaced. Use the oven for a
few weeks to become more familiar with it before adjusting the thermostat
settings. Do not use thermometers, such as those found in grocery stores, to
check the temperature setting of your oven. These thermometers may vary
20–40 degrees.
1. Press SETTINGS.
2. Press +or –repeatedly to select "CAL", and press START/ENTER.
3. Press +or –to toggle and select between -25°F and 25°F, and press
START/ENTER.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.
TURNING ON/OFF DEMO MODE
Demo Mode allows user to explore various features and options on the oven
user interface without turning on all the functionality (i.e. turning on the
heating elements).
1. Press SETTINGS.
2. Press +or –repeatedly to select "SALE", and press START/ENTER.
3. Press +or –to toggle and select On or Off, and press START/ENTER.
4. Press CLEAR/OFF or SETTINGS to exit oven settings.

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OVEN LIGHT
The oven lights automatically turn on when the door is opened and turn off
when the door is closed.
•Press OVEN LIGHT to manually turn the oven lights on or off.
NOTE:
•The oven lights cannot be turned on if the Self Clean feature is active.
LOCK
The Lock feature locks most oven controls to avoid unintended use of the
oven.
•Press and hold LOCK for 3 seconds to activate or deactivate the oven
controls.