Forney HESI - Manual

Product Overview Features & Benefi ts
High Energy Spark Igniter
Th e High Energy Spark Igniter (HESI) is a Class 3 Igniter used for direct
spark ignition of oil or gas igniters or small burners. Forney’s HESI provides a
highly reliable source of ignition for a wide range of industry igniters utilizing a
12 joule source of energy delivered to the spark tip (3 sparks per second) which
easily ignites the fuel.
Th e High Energy Spark Igniter consists of three major components: a
power unit, spark rod assembly and cable assembly.
Th e power unit is packaged in a NEMA-4 or 4X enclosure suitable for wall
mounting at the burner front as a standard. Additional enclosures are available
to meet specifi c application demands. Th e power unit develops 12 joules
of energy delivered to the spark tip through the use of heavy duty electrical
components. It has a 50% duty cycle at temperatures up to 135°F ambient.
Th e spark rod is available in the standard rigid design or in a fl exible
confi guration for use in a tilting tangential burner application. Th e spark rod
features a self-cleaning surface-gap spark tip that is easily replaceable via a
threaded connection. Both rigid and fl exible spark rods can be provided with an
optional retraction assembly to allow the spark tip to be inserted and retracted
from the fi ring position.
Th e cable assembly consists of heavy duty 12-gauge, 3,000-volt wire
sheathed in a ½ inch fl exible conduit terminated with quick release, military-
grade connectors.
Standard designs are available for both Class I Div 2 and Class I Div 1 area
applications. Th e ATEX HESI is ATEX Exd IIC T6 approved.
• N ON -F OULING S PARK T IP
The surface gap spark tip emits a self-
cleaning, highly reliable, 12 joule spark even
in the presence of moisture, oil and carbon
deposits.
• R EMOVABLE S PARK T IP
The spark tip completely detaches from the
spark rod through a threaded connection.
Replacement of the spark tip is quick and
easy.
• A
PPLICATION
F
LEXIBILITY
Standard, flexible and retractable HESI
models are available to fit a variety of igniter
or burner types.
• C OST E FFECTIVE S OLUTION
Proven technologies at an affordable price.
Pre-packaged, pre-engineered product min-
imizes cost and lead time.
• S AFE O PERATION
Heavy duty, UL approved flexible cable
connects the power unit to the spark rod
assembly ensuring operator safety.
Forney’s High Energy Spark Igniter
(HESI) provides a highly reliable, non-
fouling source of ignition for oil or gas
igniters or small burners.
Forney Corporation • 3405 Wiley Post Road • Carrollton, TX 75006 • 800-356-7740 • Fax 972-458-6650 • www.forneycorp.com