LG Electronics MFL62725501 User Manual

To contact LG Electronics, 24 hours a day,  
7 days a week:  
GAS COOKTOP  
1-800-243-0000 (U.S.A.)  
1-888-542-2623 (Canada)  
INSTALLATION INSTRUCTIONS  
Or visit us on the Web at:  
us.lge.com (U.S.A.)  
ca.lge.com (Canada)  
Please read this guide thoroughly  
before installation.  
BEFORE YOU BEGIN  
Read these instructions completely  
and carefully.  
Note to Installer: Leave these instructions with  
the appliance after installation is completed.  
Note to Consumer: Keep the User’s Guide and  
Installation Instructions for future reference.  
Installation of this cooktop must conform with local  
codes, or in the absence of local codes, with the  
National Fuel Gas Code, ANSI Z223.1/NFPA.54,  
latest edition. In Canada, installation must  
conform with the current Natural Gas Installation  
Code, CAN/CGAB149.1 or the current Propane  
Installation Code, CAN/CGA-B149.2, and with  
local codes where applicable. This cooktop has  
been design-certified by CSA International  
according to ANSI Z21.1, latest edition and  
Canadian Gas Association according to  
NOTE: This appliance must be properly  
grounded.  
The electrical diagram is in an envelope  
attached to the back of the cooktop.  
Skill level – Installation of this appliance  
requires basic mechanical skills.  
Proper installation is the responsibility of the  
installer.  
CAN/CGA-1.1 latest edition.  
Product failure due to improper installation is  
not covered under the Warranty.  
As with any appliance using gas and generating  
heat, there are certain safety precautions you  
should follow. You will find these precautions in  
the Important Safety Information section in your  
User’s Guide. Read them carefully.  
Remove all tape and packaging.  
Make sure the burners are properly seated  
and level.  
Take the accessory pack off of the cooktop.  
• IMPORTANT – Save these instructions  
for local electrical inspector’s use.  
Check to be sure that no cooktop parts have  
come loose during shipping.  
• IMPORTANT– Observe all governing  
codes and ordinances.  
P/No.: MFL62725501  
INSTALLATION INSTRUCTIONS  
INSTALLATION SAFETY INSTRUCTIONS  
BEFORE YOU BEGIN  
Remove all tape and packing materials before using the cooktop. Dispose all plastic bags after  
unpacking the cooktop. Never allow children to play with packing materials.  
IMPORTANT SAFETY INSTRUCTIONS  
Read these instructions completely and carefully. Improper installation, adjustment, alteration,  
service or maintenance can cause injury or property damage.  
For assistance or additional information, consult a qualified installer, service agency, manufacturer  
(dealer) or your gas supplier.  
Never reuse old flexible connectors. The use of old flexible connectors can cause gas leaks and  
personal injury. Always use NEW flexible connectors when installing a gas appliance.  
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”.  
This symbol will alert you to hazards or unsafe practices which could  
cause serious bodily harm or death.  
WARNING  
This symbol will alert you to hazards or unsafe practices which could  
cause bodily injury or property damage.  
CAUTION  
Be sure the wall coverings around the cooktop can  
withstand heat generated by the cooktop up to 200°F.  
IMPORTANT: Remove all packing material and  
literature before connecting gas and electrical supply.  
Avoid placing cabinets above the cooktop.  
Let your cooktop installed by a qualified installer.  
To minimize the hazard caused by reaching over the  
open flames of operating burners, install a ventilation  
hood over the cooktop that projects forward at least  
5” beyond the front of the cabinets.  
Your cooktop must be electrically grounded in  
accordance with local codes or, in the absence of  
local codes, in accordance with the National  
Electrical Code (ANSI/NFPA 70, latest edition). In  
Canada, electrical grounding must be in accordance  
with the current CSA C22.1 Canadian Electrical  
Code Part 1 and/or local codes.  
Refer to “3. Electrical Connections” in this manual.  
3
INSTALLATION INSTRUCTIONS  
INSTALLATION SAFETY INSTRUCTIONS (continued)  
The ventilating hood must be constructed of sheet  
metal not less than 0.0122” thick. Install above the  
cooktop with a clearance of not less than 1/4”  
between the hood and the underside of the  
combustible material or metal cabinet. The hood  
must be at least as wide as the appliance and  
centered over the appliance. Clearance between  
the cooking surface and the ventilation hood surface  
MUST NEVER BE LESS THAN 24 INCHES.  
The vertical distance from the plane of the cooking  
surface to the bottom of adjacent overhead cabinets  
extending closer than 1” to the plane of the cooktop  
sides must not be less than 18”. (See the  
Dimensions and Clearances illustration in this  
manual.)  
Do not abstruct the combustion or ventilation air.  
Leak testing of the appliance shall be conducted  
according to the manufacturer’s instructions.  
EXCEPTION: Installation of a listed microwave oven  
or cooking appliance over the cooktop shall conform  
to the installation instructions packed with that  
appliance.  
CAUTION:  
Items of interest to children  
should not be placed in cabinets above the cooktop.  
- children climbing on the cooktop to reach items  
could be seriously injured.  
If cabinets are located above the cooktop, allow a  
minimum clearance of 30” between the cooking  
surface and the bottom of unprotected cabinets.  
If a 30” clearance between cooking surface and  
overhead combustible material or metal cabinets  
cannot be maintained, protect the underside of the  
cabinets above the cooktop with not less than 1/4”  
insulating millboard covered with sheet metal not  
less than 0.0122” thick. Clearance between the  
cooking surface and protected cabinets MUST  
NEVER BE LESS THAN 24 INCHES.  
4
INSTALLATION INSTRUCTIONS  
DIMENSIONS AND CLEARANCES  
Provide enough clearances between the cooktop  
and adjacent combustible surfaces. These dimensions  
must be met for safe use of your cooktop.  
The cooktop may be placed with 2 3/4” clearance to  
the back wall.  
The location of the electrical outlet and pipe opening  
may be adjusted to meet specific requirements.  
MAINTAIN THE FOLLOWING  
MINIMUM CLEARANCE  
DIMENSIONS  
1.  
RECOMMENDED GAS SUPPLY  
LOCATION FROM BACKWALL  
1” Min. From Backwall  
3.  
13˝MAX. Depth of unprotected  
overhead cabinets  
Recommended  
gas supply  
location  
A˝MIN. clearance from  
cutout to side wall on  
the right of the unit  
From Cutout  
C Center Line  
B″MIN  
30˝MIN. clearance  
from countertop to  
unprotected overhead  
surface  
18˝MIN. height  
from countertop  
to nearest cabinet  
on either side of  
unit  
L
A
A
A˝MIN. clearance  
from cutout to side  
wall on the left of  
unit.  
MAKE SURE WALL COVERINGS,  
COUNTERTOP AND CABINETS  
AROUND COOKTOP CAN  
4.  
WITHSTAND HEAT(UP TO 200℉)  
GENERATED BY COOKTOP  
2. COOKTOP AND CUTOUT  
DIMENSIONS  
D
C
depth  
width  
Wall covering,  
cabinets and  
countertop  
must withstand  
heat up to  
E
height  
F
G
width  
200°F  
depth  
J
H
depth cut  
width cut  
L
L″MIN.  
To ensure accuracy, it is best to make  
a template when cutting the opening  
in the counter  
Between  
cutout  
K
and the wall  
behind the  
cooktop  
K″MIN.  
From front  
edge of cutout  
and front edge  
of countertop  
A
C
F
28 1  
J
MODEL  
B
D
11  
E
33  
G
19 3  
H
28 1  
K
15  
L
23  
1113  
16  
4
30″ Cooktop  
36″ Cooktop 1113  
30″  
36″  
30″  
21  
4
8
8
2
16  
8
4
16  
1911  
33 5  
1911  
4
21  
33  
19 3  
3315  
16  
8
11  
36″  
15  
23  
16  
4
8
16  
16  
5
INSTALLATION INSTRUCTIONS  
INSTALLING THE COOKTOP UNIT  
1. LOCATE ELECTRICAL OUTLET  
AND GAS SHUT-OFF VALVE  
BENEATH CABINET  
INSTALL THE RETAINER BRACKETS  
Install the retainer brackets to the bottom  
of the cooktop unit. then snug the bolts  
against the bottom of the countertop as  
shown  
4
NEVER RE-USE  
OLD FLEX  
CONNECTORS.  
Electrical  
outlet 12˝  
below  
Shut-Off  
valve  
countertop  
Install a manual shut-off valve in the gas line  
in an easily accessible location outside the  
cooktop. Be sure you know how and where to  
shut off the gas supply to the cooktop. Install  
the electrical outlet 12˝ below the countertop.  
Retainer brackets  
Cooktop  
Countertop  
Screw  
2. INSERT COOKTOP INTO CUTOUT  
Insert the cooktop centered into the cutout  
opening. Be sure the front edge of the  
countertop is parallel to the cooktop. Make  
final check that all required clearances are  
met.  
Retainer brackets  
NOTE: The retainer brackets MUST be  
installed to meet local codes or, in their  
absence, with the National Electrical Code  
ANSI/NFPA No. 70, latest edition.  
3. LOCATE RETAINER BRACKETS  
Remove the retainer brackets from the  
literature package.  
6
INSTALLATION INSTRUCTIONS  
1. PROVIDE ADEQUATE GAS SUPPLY  
This cooktop is designed to operate at a pressure  
For LP gas, the pressure supplied must be between  
of 5” of water column on natural gas or 10” of water 10” and 13” of water column.  
column on LP, propan or butane gas.  
When checking for correct operation of the regulator,  
the inlet pressure must be at least 1” more than the  
Make sure you are supplying your cooktop with the operating -manifold- pressure as given above.  
type of gas for which it is designed.  
The pressure regulator located at the inlet of the  
cooktop manifold must remain in the supply line  
regardless of whether natural or LP gas is being used.  
This cooktop is convertible for use on natural or  
propane gas. When using this cooktop on LP gas,  
conversion must be made by a qualified LP installer  
before attempting to operate the cooktop on that  
gas.  
A flexible metal appliance connector used to connect  
the cooktop to the gas supply line must have an  
I.D. of 5/8” and can be 3 feet in length easily for  
installation. In Canada, flexible connectors should  
be single wall metal connectors less than 6 feet  
in length.  
For correct operation, the pressure of natural gas  
supplied to the regulator should between 5” and  
13” of water column.  
2. CONNECT THE COOKTOP TO GAS  
Shut off the main gas supply valve before  
removing the old cooktop and leave it off until the  
new hook-up has been completed. Don’t forget to  
relight the pilot on other gas appliances when you  
turn the gas back on.  
Install male 1/2” or 3/4” flare union adapter to the  
3
NPT internal thread of the manual shut-off valve,  
taking care to back-up the shut-off valve to keep  
it from turning.  
Connect flexible metal connector to the adapter  
on the cooktop. Position cooktop to permit  
connection at the shut-off valve.  
4
5
Because hard piping restricts movement of the  
cooktop, the use of a CSA International-certified  
flexible metal appliance connector is recommended  
unless local codes require a hard-piped connection.  
When all connections have been made, be  
sure all cooktop controls are in the off position  
and turn on the main gas supply valve.  
Never reuse an old connector when installing a new  
cooktop. If the hard piping method is used, you must  
carefully align the pipe; the cooktop cannot be moved  
after the connection is made.  
Check gas leaks by using manometer.  
If a manometer is not available, turn the gas supply  
on to the cooktop and use a liquid leak detector  
at all joints and connections to check for leak.  
Tighten all connections if necessary to prevent  
gas leakage in the cooktop or supply line.  
To protect gas leaks, put pipe joint compound on,  
all male -external- pipe threads.  
Install a manual gas line shut-off valve in the gas  
1
WARNING!  
DO NOT USE A FLAME TO CHECK FOR GAS LEAKS.  
line in an easily accessed location outside of the  
cooktop. Be sure everyone operating the  
cooktop knows where and how to shut off the  
gas supply to the cooktop.  
Disconnect the cooktop and its individual shut-off  
valve from the gas supply piping system during any  
pressure testing of that system at test pressures  
more than 1/2 psig(3.5kPa).  
Isolate the cooktop from the gas supply piping system  
by closing its individual shut-off valve during any  
pressure testing of the gas supply system at test  
pressures equal to or less than 1/2 psig(3.5kPa)  
Install male 1/2” flare union adapter to the 1/2”  
2
NPT internal thread at inlet of pressure regulator.  
Use a backup wrench on the pressure regulator  
fitting to prevent damage.  
7
INSTALLATION INSTRUCTIONS  
FLEXIBLE CONNECTOR HOOKUP  
Pressure  
regulator  
Adapter  
Gas Flow into Range  
Flex  
connector  
(6 ft. max.)  
Adapter  
Installer: Inform the  
Gas  
consumer of the  
location of the gas  
shut-off valve.  
shut-off  
valve  
1/2” or 3/4”  
Gas pipe  
8
INSTALLATION INSTRUCTIONS  
3. ELECTRICAL CONNECTIONS  
ELECTRICAL REQUIREMENTS  
120 Volt, 60 Hertz, properly grounded dedicated  
circuit protected by a 15 A or 20 A circuit  
breaker or time delay fuse.  
The power cord of this appliance should be equipped  
with a three-prong (grounding) plug which mates with  
a standard three-prong grounding wall receptacle to  
reduce the possibility of electric shock hazard from  
this appliance.  
GROUNDING  
The customer should have the wall receptacle and  
circuit checked by a qualified technician to be sure  
the receptacle is properly grounded.  
IMPORTANT: FOR PERSONAL SAFETY,  
THIS APPLIANCE MUST BE PROPERLY  
GROUNDED.  
When connecting the cord of this cooktop to a  
standard two-prong wall receptacle, it is the  
personal responsibility and obligation of the customer  
to have it replaced with a properly grounded  
three-prong wall receptacle.  
PREFERRED  
METHOD  
DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR  
REMOVE THE THIRD (GROUND) PRONG FROM  
THE POWER CORD.  
A word about Ground Fault Circuit Interrupters –  
Ground Fault Circuit Interrupters are not required or  
recommended for gas range receptacles.  
Ensure proper ground  
exists before use  
Ground Fault Circuit Interrupters are devices that  
sense leakage of current in a circuit and  
automatically switch off power when a threshold  
leakage level is detected.  
These devices must be manually reset by the  
customer.  
The National Electrical Code requires the use of  
Ground Fault Circuit Interrupters in kitchen  
receptacles installed to serve countertop surfaces.  
Performance of the cooktop will not be affected if  
it is operated from a Ground Fault Circuit Interrupters  
protected circuit but occasional nuisance can occur.  
9
INSTALLATION INSTRUCTIONS  
(continued)  
3. ELECTRICAL CONNECTIONS  
The installation of appliances designed for mobile  
home installation should conform with the Manufactured  
Home Construction and Safety Standard, Title 24  
CFR, Part 3280 (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 Installations,  
latest edition (Manufactured Home Sites,  
Communities and Set-Ups), ANSI A225.1, latest  
edition, or with local codes. In Canada, mobile home  
installation must comply with the current  
CAUTION  
The customer should have the circuit checked by  
a qualified technician to make sure the receptacle  
is correctly grounded.  
DO NOT use an adapter plug because disconnecting of  
the power cord places undue strain on the adapter  
and causes eventual failure of the adapter ground  
terminal.  
CAN/CSA Z240/MH Mobile Home Installation Code.  
The customer must have the two-prong wall  
receptacle replaced with a three-prong (grounding)  
receptacle by a qualified technician before using this  
cooktop.  
4. SEAL THE OPENINGS  
Seal any openings in the wall behind the cooktop  
and in the floor of the cabinet when hookups  
are completed.  
10  
INSTALLATION INSTRUCTIONS  
5. ASSEMBLE THE SURFACE BURNERS  
Make sure the hole in the burner head is positioned  
over the electrode.  
CAUTION  
DO NOT operate the burners without all parts in  
place.  
Hole  
Place the burner caps and heads on the cooktop.  
Make sure that the caps and heads are placed in the  
correct locations.  
Electrode  
Extra large burner  
head and cap  
(Center)  
Small burner  
head and cap  
Medium burner  
head and cap  
Lrage burner  
head and cap  
6. CHECK IGNITION OF SURFACE BURNERS  
Operation of all cooktop burners should be checked  
after the COOKTOP and gas supply lines have been  
QUALITY OF FLAMES  
The combustion quality of burner flames needs to be  
confirmed visually.  
carefully checked for leaks.  
ELECTRIC IGNITION  
A Yellow flames — Call for service  
Select a top burner knob, push down and then turn  
counterclockwise to the “LITE” position.  
You can hear a clicking sound indicating proper  
operation of the spark module.  
B Yellow tips on outer cones  
— It is normal for LP gas  
Once the air has been purged from the supply lines,  
burner should ignite within 4 seconds.  
After burner ignites, rotate knob out of the “LITE”  
position. Try each burner in succession until all  
burners have been checked.  
C Soft blue flames  
— It is normal for natural gas  
If burner flames look likeA, call for service.  
B or C is normal burner flames, depending on the  
type of gas you use.  
With LP gas, some yellow tipping on outer cones is  
normal.  
11  
INSTALLATION INSTRUCTIONS  
7. ADJUST THE SURFACE BURNER LOW FLAME  
(SIMMER) SETTING  
7. Position center burner head, center burner cap,  
For all surface burners except for the center  
burner  
center grate, center knob.  
8. Connect power to appliance.  
9. Light center burner.  
1. Light all surface burners except for the center  
burner.  
2. Turn the knob on the burner being adjusted to  
“LO”(LOW).  
3. Remove knob.  
4. Insert a small, flat bladed screwdriver into the  
valve stem as shown in Fig.2.  
5. Turn the adjustment screw until the flame  
reaches the desired size.  
10. Turn the knob on the burner being adjusted  
to “LO”(LOW).  
11. Remove knob.  
12. Using a small, flat bladed screwdriver insert  
into the hole next to the valve stem to adjust  
outer flame as shown in Fig.3.  
13. Turn the adjustment screw until the flame  
reaches the desired size.  
6. Replace the knob.  
14. Replace the knob.  
Center adjustment screw  
Fig. 2  
Adjustment screw next to the valve shaft  
Fig. 3  
7. Test The Flame Stability.  
15. Test The Flame Stability.  
Test 1 :  
Test 1 :  
Turn the knob from “HI” to “LOW” quickly.  
Turn the knob from “HI” to “LOW” quickly.  
lf the flame goes out, increase the flame  
size and test again.  
If the flame goes out, increase the frame  
size and test again.  
Test 2 :  
Test 2 :  
With the burner on a “LOW” setting, open  
and close the oven or cabinet door quickly.  
If the flame is extinguished by the air currents  
created by the door movement, increase  
the flame height and test again.  
With the burner on a “LOW” setting, open  
and close the oven or cabinet door quickly.  
If the flame is extinguished by the air  
currents created by the door movement,  
increase the flame height and test again.  
8. Repeat steps 1 - 6 for each surface burner  
except for center burner.  
16. After low flame setting, turn off the burner.  
17. Disconnected power to appliance.  
18. Remove knob, grate, burner cap, burner head.  
19. Remove all screw of the cook top.  
20. Remove cook top by lifting up.  
21. Reposition center LED lamp module by  
hooking.  
22. Reposition cook top and secure all screws of  
cook top.  
23. Reposition burner heads, burner caps, grates  
and knobs.  
24. Connect power to appliance.  
Only For the center burner  
1. Disconnect power to appliance.  
2. Remove grates, burners caps, burner heads and  
knobs.  
3. Remove the all the screws on the cooktop by  
philips screwdriver.  
4. Remove cooktop by lifting up.  
5. Remove LED lamp module of the center valve  
by unclipping. In this case, the ignition switch  
should be positioned properly.  
6. Replace the cooktop back and secure the screws  
of the cooktop.  
12  
INSTALLATION INSTRUCTIONS  
WHEN ALL HOOKUPS ARE COMPLETE  
Make sure all controls are left in the off position.  
Make sure the flow of combustion and ventilation  
air to the cooktop is unobstructed.  
CONVERTING TO LP GAS  
(OR CONVERTING BACK TO NATURAL GAS FROM LP)  
This cooktop leaves the factory set for use with  
natural gas. When converting to LP gas, the  
conversion must be performed by a qualified LP  
gas installer.  
The conversion instructions and LP orifices are  
supplied with your cooktop.  
Keep these instructions and the orifices in case  
you want to convert back to natural gas.  
13  
Memo  
14  
Printed In Korea  
Impreso en Korea  
Imprimé en Corée  

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