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3.4 Gas Connections (cont.)
B. 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.
C. Regulating Gas Pressure: The fryer and shut-off valve must be disconnected from the gas
supply during any pressure testing of the system.
NOTE: External gas regulators are not normally required on this fryer. A safety control
valve protects the fryer against pressure fluctuations. If the incoming pressure is in
excess of ½" PSI (3.45 kPa/35 mbar), a step-down regulator is required.
When pressure-testing incoming gas supply lines, disconnect the fryer from the gas
line if the test pressure is ½" PSI [3.45 kPa (14 inches W.C.)] or greater to avoid
damage to the fryer's gas piping and gas valve(s).
D. Manifold Pressure: Your local service technician should check the manifold pressure with
a manometer.
1. Check the rating plate for specific manifold gas pressures. Natural gas units normally
require 4" W.C. (10.0 mbar), and propane/LP units normally require 11" W.C. (27.5
mbar) gas pressure.
2. Confirm that the arrow forged into the bottom of the regulator body, which indicates gas
flow direction, is pointed downstream towards the fryers. The air vent cap is also part of the
regulator and should not be removed. If a vent line from the gas pressure regulator is used,
it should be installed in accordance with local codes or in the absence of local codes, with
the National Fuel Gas Code, ANSI Z223.1-(latest edition) in the U.S. and appropriate
national or European harmonized standards (EN) in the European Union.
Use a leak detection fluid to find potentially dangerous gas leaks when making new
E. Regulators can be adjusted in the field, but it is recommended that qualified service personnel
adjust a regulator only if it is known to be out of adjustment or serious pressure fluctuations
have been found and cannot be solved another way.
F. Only qualified service personnel should make adjustments to the regulators.
G. Orifices: The fryer can be configured to operate on any available gas. The correct safety
control valve, appropriate gas orifices, and pilot burner are installed at the factory. While the
valve can be adjusted in the field, only qualified service personnel should make adjustments
with proper test equipment.
Frymaster 1814 Series Gas Fryers
Chapter 3: Installation
DANGER
WARNING
connections.
3-4
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