SUPER MARATHON SERIES GAS FRYERS
CHAPTER 3: INSTALLATION INSTRUCTIONS
3-6
3.4 Gas Connections (cont.)
Supply Line Specifications
The incoming gas supply line should be a minimum of 1½" (40 mm) in diameter.
The gas supply lines must be sized as indicated in the chart below, based on the total number of
fryers connected to the main gas supply.
Recommended Gas Connection Line Sizes
Gas Types
Number of Fryers
1
2 to 3
4 or 5 (*)
Natural Gas
3/4" (20 mm)
1" (25 mm)
1-1/4" (32 mm)
Propane Gas
1/2" (15 mm)
3/4" (20 mm)
1" (25 mm)
(*) When exceeding 18 feet (6 meters) for a configuration of four to five fryers, it is necessary to
provide a 1-¼" (32 mm) rigid gas connection. For six or more fryers, contact factory for
connection line specifications.
DANGER
All connections must be sealed with a joint compound suitable for the gas being used and
all connections must be tested with a solution of soapy water before lighting any pilots.
Never use matches, candles, or any other ignition source to check for leaks. If gas odors are
detected, shut off the gas supply to the appliance at the main shut-off valve and immediately
contact the local gas company or an authorized service agency for service.
DANGER
"Dry-firing" your unit will cause damage to the frypot and can cause a fire. Always ensure
that melted shortening, cooking oil or water is in the frypot before firing the unit.
Rigid Connections
Check any installer-supplied intake pipe(s) visually and clean metal particles or other foreign matter
from the threads before installing into a service line. If the intake pipes are not clear of all foreign
matter, the orifices will clog when gas pressure is applied. When using thread compound on gas
piping, use very small amounts and only on male threads. Use a pipe thread compound that is not
affected by the chemical action of LP gases. DO NOT apply thread compound to the first two pipe
threads – doing so will cause clogging of the burner orifices and control valve.
Manual Shut-Off Valve
This gas service supplier-installed valve must be installed in the gas service line ahead of the fryers
in the gas stream and in a position where it can be reached quickly in the event of an emergency.
