Section 5-3
20
MLSM2003-09-03
Procedure K
- Gas Conversion
Step 12: Air shutter adjustment will
be needed for small simmer setting.
Approximate air hole coverage is 1/2
covered for Nat Gas.
Step 13: Grill models only. There
is only valve simmer jet and one
burner jet.
Air shutter will need adjusting: LP
fully open, Nat Gas open 0.40”.
North American Natural Gas
Description
Size
Part no./Model
3520/3525 3620/3625 3620/3625 BBQ
#38109
#38110
#38111
main jet simmer 34
#3669
4
6
4
main jet
1.7
#3860
4
6
4
valve outer
0.4
#7640 OR #3856
4
6
4
valve inner
0.88
#3857
4
6
4
grill Jet
1.18*
#3516
0
0
2
grill valve
0.58
7636
0
0
2
venturi
#3667
4
6
4
North American Liquid Propane
Description
Size
Part no./Model
3520/3525 3620/3625 3620/3625 BBQ
#38112
#38113
#38114
main jet simmer 7
#3670
4
6
4
main jet
1.1
#3861
4
6
4
valve outer
0.25
#3858
4
6
4
valve inner
0.54
#3859
4
6
4
grill Jet
0.85*
#3517
0
0
2
grill valve
0.4
#7640 OR #3856
0
0
2
venturi
#3667
4
6
4
* These orifices use standard size orifice #3519 0.74 drilled out to following size:
#3517 0.85 for North American Liquid Propane (L/P) kits
Conversion/Orifice Charts
Step 11: Air shutter adjustment will
be needed for small simmer setting.
Approximate air hole coverage is 1/4
covered for LP
IMPORTANT: ALL GAS WORK TO
BE PERFORMED BY A QUALIFIED
GAS TECHNICIAN.
Air Shutter Adjustments may be
needed to adjust flame patterns
in the field after conversion or
new appliance installation.