Frymaster 47 Series Installation & Operation Manual page 14

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.
Natural
Propane
Manufactured
* For distances of more than 20 feet (6 m) and/or more than 4
fittings or elbows, increase the connection by one pipe size.
Before connecting new pipe to your unit, the pipe must be thoroughly blown out to remove any
foreign particles. If these foreign particles get into the burner and controls, they will cause improper
and sometimes dangerous operation.
Ensure the combustion air supply airflow is 2m
(See the rating plate affixed to the fryer door for the kW rating.)
1. Connect the quick-disconnect hose to the fryer quick-disconnect fitting under the front of the
fryer and to the building gas supply-line.
NOTE: Some fryers are configured for a rigid connection to the gas supply line. These units are
connected to the gas supply line at the rear of the unit.
CE Approved Gas Categories
Country Category
I2E+(S)
BE
I3P
I2 ELL
DE
13P
DK-GR-IT
I2 H
FR
II2Esi3P
LU
I2E
ES
II2H3P
NL
II2L3P
IE-PT-GB
II2H3P
Gas Connection Pipe Sizes
(Minimum incoming pipe size should be 1 1/2" (38 mm))
Gas Single Unit
3/4" (19 mm)
1/2" (13 mm)
1" (25 mm)
CE Standard
Pressure
Gas (mbar)
G20/G25 20/25
G31 37
G20/G25 20
G31 50
G20 20
G20/G25 20/25
G31 37 ET 50
G20/G25 20/25
G20 20
G31 37 ET 50
G25 25
G31 50
G20 20
G31 37
4 or more
2 - 3 Units units*
1" (25 mm) 1 1/4" (33 mm)
3/4" (19 mm) 1" (25 mm)
1 1/4" (33 mm) 1 1/2" (38 mm)
3
/h times the kW rating of the fryer.
2-6