Steam Generator Installation Manual - Clayton Industries

STEAM GENERATOR & FLUID HEATER
INSTALLATION MANUAL
Vent lines are required for both the high and low gas pressure switches (1/8 inch) and vent
valve (size varies with model - see generator P & ID drawing by specific model number.)
NOTE
Some gas trains are ventless. But, when gas train vent lines exist,
they must be vented to atmosphere.
4.3 OIL
NOTE
All gas supply piping must include a minimum 12-inch drip leg immediately
before Clayton’s gas train connection, and be fully selfsupporting.
4.3.1 General
Clayton modulating, oil-fired, steam generators are designed with air atomizing-type oil
burners. Either instrument air or compressed air is used for oil atomization. This air supply must
be free of contaminants and moisture; therefore, an in-line air dryer should be installed in the
atomizing air supply line. Atomizing air supply pressure and flow requirements are provided in
Table 1 of Section VI. The atomizing air supply connection size for all models is 1/2 inch.
NOTE
All Clayton liquid fuel systems require a fuel return line in addition
to the fuel supply line. Clayton recommends fuel return lines have
no isolation valve, or only valves with position open locking mechanisms.
NOTE
It is the customer’s responsibility to implement and meet state, local
and EPA code requirements for fuel oil storage.
4.3.2 Light Oil
The Clayton light oil burner is designed for operation with No. 2 fuel oil as defined by
ASTM D 396 - Standard Specifications for Fuel Oils. A Table of Specifications indicating the
limits of the light oil fuel constituents and characteristics is provided, refer to Document R-8751
(Heavy Oil Specifications) at the end of Supplement III of this manual.
NOTE
A fusible-link-actuated shutoff valve is required in the fuel oil supply
line when a machine is installed within FM (Factory Mutual) jurisdiction.
This is not within the Clayton scope of supply and must
be provided by the installing party.
Sect04_FuelSys_xx4_f.fm 4-2 04/22/2015