11
hood
orifice hood
pin
L.P. gas:
decrease gas,
decrease flame size
Natural gas:
increase gas,
increase flame size
(pre-set at factory)
Natural gas conversion
1.
Complete installation steps 1
through 8 before converting cooktop to
natural gas. Check that main gas supply
line has been shut off and the power
supply cord is disconnected.
2.
Pressure regulator: Remove
storage drawer and locate pressure
regulator at back of range.
pressure
regulator
Do not remove the pressure regulator
Remove plastic cover. Turn cap marked
“L.P.” on front of pressure regulator
counterclockwise with a wrench to
remove. Do not disturb or remove the
spring beneath the cap. Turn the cap over
and reinstall cap on regulator so that the
letter “N” is visible. Replace plastic cover
over cap.
3.
Surface burners: Remove burner
caps. Use a Phillips or Quadrex
screwdriver to remove the two screws
holding the burner head down. Lift the
burner head off the cooktop to uncover
the orifice spud holder. The orifice spud
is recessed in the holder.
NOTE:
Reinstall one of the screws
through the range cooktop to hold orifice
spud holder in place while removing and
replacing orifice spuds.
reinstall one
of the screws
orifice spud
orifice spud
holder
spark electrode
range cooktop
Locate the Natural gas
orifice spuds on the spud
card on the back of the
range. Orifice spuds are
stamped with a number
and marked with two
color dots.
Natural Gas
Surface
burner
Propane rate
(BTU/hr)
Orifice
Number
Color
Marking
Left
rear
8,000
N139
Blue/
Black
Left
front
12,000
N176
Blue/
Red
Right
front
9,500
N151
Blue/
Brass
Right
rear
5,000
N112
Blue/
White
Natural gas
orifice spud
Locate the brass orifice spuds in the
center of each burner throat about 2"
(5 cm) below the cooktop. Apply masking
tape to the end of a 5/16" nut driver to fit
snugly over the orifice spud.
Press driver down onto the spud of the
left front burner and remove by turning
spud counter-clockwise and lifting it out.
Replace the L.P. gas spud with the
appropriate Natural gas spud shown in
the table.
Continue to replace the remaining orifice
spuds, one at a time. Place the L.P. gas
spuds on the spud card on the back of
the range for future use. Replace burner
caps using both screws and burner
grates.
5.
Broil burner: Use 1/2" combination
wrench to loosen orifice hood away from
pin (approximately 2 to 2-1/2 turns). The
burner flame cannot be properly
adjusted if this conversion is not made.
orifice hood
6.
Reinstall the storage drawer.
Complete installation steps 9 through 24.
Checking for proper cooktop burner and
oven flame is very important.
You must adjust “LOW” setting for each
cooktop burner. See installation step 16.
NOTE:
Natural gas flames do not have
yellow tips.
4.
Oven burner: Use 1/2" combination
wrench to loosen the orifice hood away
from pin (approximately 2 to 2-1/2 turns).
The burner flame cannot be properly
adjusted if this conversion is not made.
6.
Reinstall the storage drawer.
Complete installation steps 9 through 24.
Checking for proper cooktop burner and
oven flame is very important.
You must adjust “LOW” setting for each
cooktop burner. See Step 16.
The small inner cone should have a very
distinct blue flame 1/4" (6 mm) to 1/2"
(13 mm) long. The outer cone is not as
distinct as the inner cone. L.P. gas flames
may have a slightly yellow tip. If the
flame is noisy or blowing, it is getting
too much air. If the flame is soft and lazy,
it is not getting enough air.
L.P.
cap
washer
pressure regulator
Natural gas
L.P. gas
Natural
plastic
cover
plastic
cover
