Welbilt Frymaster McDonald's LOV BIGLA30 Gen II Series Installation, Operation And Maintenance Manual page 15

The appliance and its individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of the system at test pressures in
excess of ½ PSI (3.45 kPa, 13.84 inches W.C.) to avoid damage to the fryer's gas
tubes and gas valve(s).
The appliance must be isolated from the gas supply piping system by closing its in-
dividual manual shutoff valve during any pressure testing of the gas supply piping
system at test pressures equal to or less than ½ PSI (3.45 kPa, 13.84 inches W.C.)
"Dry-firing" your unit will cause damage to the frypot and can cause a fire. Always
ensure that cooking oil or water is in the frypot before firing the unit.
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 light-
ing 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 agen-
cy for service.
The size of the gas line used for installation is very important. If the line is too small, the gas pressure at the
burner manifold will be low. This may cause slow recovery and delayed ignition. The incoming gas supply line
should be a minimum of 1½" (38 mm) in diameter. Refer to the chart below for the minimum sizes of connection
piping.
The BIGLA30 LOV™ gas fryer has received the CE mark for the countries and gas categories indicated in the
table on the following page. NOTE: The nominal heat input (QN) is 21kW except for AT, DE, LU and category
3P/B, which is 23kW.
Gas Connection Pipe Sizes
(Minimum incoming pipe size should be 1 1/2" (41 mm))
Gas Single Unit
3/4" (22 mm)
Natural
Propane 1/2" (15 mm)
Manufactured 1" (28 mm)
* For distances of more than 20 feet (6 m) and/or more
than 4 fittings or elbows, increase the connection by one
pipe size.
DANGER
DANGER
DANGER
DANGER
4 or more
2 - 3 Units units*
1" (28 mm) 1 1/4" (36 mm)
3/4" (22 mm) 1" (28 mm)
1 1/4" (36 mm) 1 1/2" (41 mm)
2-5