Forney HESI User Manual

High energy spark igniter, Product overview features & benefi ts

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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

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