sinmag LBC LMO Max-E - GAS OVENS: NATURAL;PROPANE GAS CONVERSION - Part 1; Gas Pressure and Orifice Settings; Conversion Process Steps

© Copyright 2017-2022 LBC Bakery Equipment, Inc. 15 Rev 6/2022
GAS OVENS: NATURAL/PROPANE GAS CONVERSION .
(Part 1 of 2) .
This oven was shipped configured to operate on either natural gas or propane gas. Consult
the data plate to determine which fuel the oven is configured for.
The oven can be reconfigured for either natural gas or propane gas.
Gas Pressure
Both natural gas and propane
gas configurations have a
manifold pressure setting of
3.5 inwc. Do not change
pressure regulator spring
when making conversion.
Always confirm gas pressure
once conversion is complete.
To check manifold pressure,
loosen set screw in manifold
pressure tap. Install 1/4”
hose from manometer on
pressure tap. Read manifold
pressure with burner on.
Tighten set screw when
manometer hose is removed.
Burner Orifices and Exhaust Restrictor Plate
The orifices for each burner are different for natural gas and propane gas. The firing rate
is 125,000 BTU/hr.
Natural Gas orifice is drilled and marked #49 and the restrictor plate is marked “NG”.
Propane Gas orifice is drilled and marked #53 and the restrictor plate is marked “LP”.
To Change Orifices
1. Turn off the gas supply to the oven at the wall.
2. Remove the burner cover from the top of the
oven.
3. Disconnect the electrical wires at the front of
the burner for the hot surface ignition and the
flame sensor.
4. Disconnect the wires from the gas valve.
5. Disconnect the flexible gas line at the union
located at the gas valve (see illustration).
Manifold pressure
adjustment (cap
installed)
Supply pressure tap
Manifold pressure tap
Disconnect
gas Line here.