American Dryer Corp. AD-758 - Manual (Page 25)

21
To Convert from Natural Gas to Liquid Propane (L.P.) Gas
NOTE: ALL dryers are sold as natural gas, unless otherwise specified at the time the dryer order was
placed. For L.P. gas the dryer must be converted as follows.
1. Refer to “Replace Gas Valve” and follow steps 1 through 6.
2. Remove the four (4) screws which secure the top cap assembly. This assembly contains the regulator
adjustment screw and the terminal connections.
3. Replace the top cap assembly with the L.P. version.
4. Unscrew main burner orifices and replace with L.P. orifices.
NOTE: Use extreme care when removing and replacing orifices. These orifices are made of brass and
are easily damaged.
5. Reverse the procedure for reinstalling valve assembly to the dryer.
WARNING: Test ALL connections for leaks by brushing on a soapy water solution. NEVER TEST
FOR LEAKS WITH A FLAME.
NOTE: There is no regulator provided in an L.P. dryer. The L.P. gas pressure must be regulated at
the source (L.P. tank) or an external regulator must be added to each dryer.
To Replace Burner Tubes
1. Refer to “Replace Gas Valve” and follow steps
1 through 6.
2. Remove four (4) screws securing manifold rest
and remove rest.
3. Remove the screws securing the front flanges
of the burner tubes to the burner tube rest.
4. Remove the screws securing the burner tube
rest to the oven and remove this rest.
5. Remove screws securing the sight hole disk and burner box cover plate to the oven and remove both of
these pieces.
6. Remove burner tubes by sliding them out.
7. Replace by reversing procedure.
WARNING: Test ALL connections for leaks by brushing on a soapy water solution. NEVER TEST
FOR LEAKS WITH A FLAME.