Gas Conversions
Converting to another gas type must be performed by a qualified service technician. If the type of the gas supplied to the
dwelling is not the same type as your furnace (natural or LPG gas), it must be converted.
It will be necessary to do the following:
1. Change nozzle.
a. Remove the screw indicated to the right.
2. Remove the nozzle assembly from the burner inserting the screwdriver as indicated by the arrow.
3. Remove the nozzle from the support and replace it with the correct one. Reassemble the nozzle assembly and the screw
indicated at point 1. Set the burner pressure as indicated in the table below:
Gas Type
Nozzle Part Number
Nozzle Diameter
Natural Gas
P332551
0.09 in.
LP Gas
P332552
0.05 in.
Gas Type
Minimum Inlet Line Gas
Pressure
Maximum
Manifold Gas Pressure
Minimum
Manifold Gas Pressure
Natural Gas
7.0-inches w.c.
3.2-inches w.c.
1.8-inches w.c.
LP Gas
11.0-inches w.c.
10.6-inches w.c.
6.5-inches w.c.
Figure 7
9
