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© 2020 Carrier 

FIGURE 4. 

High Energy Power Pack. 

SPARK ROD 

In most applications, the HESI spark rod fits into a guide tube that houses the spark rod assembly. 
Observe the following steps for installing the spark rod assembly: 

1.

Carefully insert the spark tip into the guide tube until the spark rod extends into the primary 
ignition zone. As a general guideline, with gas igniters position the spark tip flush with the front 
of the baffle plate (Fig. 5). With oil igniters, position the spark tip 3 to 4 inches past the oil gun 
tip (Fig. 6). 

2.

When a retraction assembly is supplied, exercise the retract cylinder, either manually or auto-
matically, in the extend and retract positions to check for correct operation. 

3.

Once the tip penetration is set, attach and tighten the locking device to the spark rod. 

FIGURE 5. 

LOCATION OF SPARK TIP IN GAS IGNITE

SPARK TIP

Summary of Contents for SureFire HESI

Page 1: ...es a self cleaning surface gap spark tip that is easily replaceable through a threaded connection Spark rods are available with an optional retraction assembly to allow the spark tip to be inserted and retracted from the firing position FEATURES Non fouling Spark Tip The surface gap spark tip produces a self cleaning highly reliable 12 joule spark even in the presence of moisture oil and carbon de...

Page 2: ...URES 1 SPECIFICATIONS 3 OVERVIEW 3 SAFETY 7 INSTALLATION 7 COMMISSIONING 9 OPERATION 10 TROUBLESHOOTING 10 MAINTENANCE 10 RECOMMENDED SPARE PARTS 11 ORDERING INFORMATION FIXED MOUNT HESI IGNITER 12 ORDERING INFORMATION RETRACTABLE MOUNT HESI IGNITER 14 ...

Page 3: ...ield Conduit Hole Diameter 0 88 in 2 2 cm Power Cable 12 gage 3000 v in 0 5 in 1 3 cm flexible conduit Power Cable Lengths 6 9 12 15 20 25 50 ft 1 8 2 7 3 7 4 6 6 1 7 6 15 2m 15 foot standard Duty Cycle 100 at temperature rating OVERVIEW 1 Mount the power pack in a suitable location as far as possible from the burner front extreme temperatures Ensure that cable connectors are facing downward 2 Car...

Page 4: ... Locate the spark tip at the upstream location of the primary combustion zone Measure the distance back to the burner front plate Add 12 305mm to this distance for the amount of exposure outside the burner front plate The total of these two distances will be the dimension L Refer to the HESI spark rod drawing HESI POWER PACK The HESI power pack comes in two voltages 110 VAC and 220 VAC 50 60HZ and...

Page 5: ...th spark rod comes in one of two lengths depending on the length of the spark rod PART NUMBER SPARK TIP LENGTH 145 18 8 203mm for spark rods 36 914mm and shorter 145 19 27 686mm for spark rods 38 965 and longer FIGURE 2 High Energy Spark Igniter Fixed Mount ...

Page 6: ...g 1 HESI Retractor Assembly consisting of pneumatic cylinder extended position limit switch packing gland and collar 2 Retraction mount tube P N MT1R XXX 3 HESI spark rod SFR XXX 4 HESI Power Pack P N SF1 X 5 HESI interconnecting cable P N SF1 CA1 XX FIGURE 3 High Energy Spark Igniter Automatic Retraction ...

Page 7: ...ensure that no voltage is present 8 Adhere to safety related information on all drawings 9 Before applying the energizing signal to the assembly fully connect the spark rod to the power unit 10 When the HESI spark rod is removed from its operating position for testing do not attempt to energize it without taking precautions Lay the spark rod in a secure position Ensure that per sonnel are not in c...

Page 8: ...ignition zone As a general guideline with gas igniters position the spark tip flush with the front of the baffle plate Fig 5 With oil igniters position the spark tip 3 to 4 inches past the oil gun tip Fig 6 2 When a retraction assembly is supplied exercise the retract cylinder either manually or auto matically in the extend and retract positions to check for correct operation 3 Once the tip penetr...

Page 9: ... rod assembly is functioning properly when discharge of approximately three sparks per second is visible If the spark rod cannot be observed in place mark the rod so it can be repositioned to its previous location Remove the rod and place it in a safe location away from any personal contact Observe the rod for visible emission of three sparks per second If the spark rod assembly functions properly...

Page 10: ...ark gap or spark 1 Spark tip fouled and shorting 1 Replace tip assembly and gap tube weak or erratic 2 Tip insulator cracked or adjust tip to gun setting as damaged specified in drawing 3 High tension cable inside rod 2 Replace tip assembly and broken or insulation damaged adjust tip to gun setting as specified in drawing 3 Replace cable assembly Adjust tip to gun settings on specified drawing WAR...

Page 11: ... and delivery to the spark tip This is viewed with the power pack door open CABLE INSPECTION AND MAINTENANCE Inspect the cable for fraying or lose connections Replace frayed cable RECOMMENDED SPARE PARTS The following recommended spare parts table advises of the minimum stock level of replacement parts that should be in the customer s stock for system start up and the first year of operation Rec o...

Page 12: ...20 vac NEMA 4 painted steel SF1 3 SureFire HESI Power Pack 110 vac NEMA 4X stainless steel SF1 4 SureFire HESI Power Pack 220 vac NEMA 4X stainless steel 2 SELECT THE APPROPRIATE HESI INTERCONNECTING CABLE PART NUMBER DESCRIPTION SF1 CA1 06 SureFire HESI interconnecting cable with connectors 6 feet long SF1 CA1 09 SureFire HESI interconnecting cable with connectors 9 feet long SF1 CA1 12 SureFire ...

Page 13: ...h 040 MT1 036 Fixed Mount Tube 36 long rod lengths 042 through 050 MT1 046 Fixed Mount Tube 46 long rod lengths 052 through 060 MT1 056 Fixed Mount Tube 56 long rod lengths 062 through 070 MT1 066 Fixed Mount Tube 66 long rod lengths 072 through 080 MT1 076 Fixed Mount Tube 76 long rod lengths 082 through 090 MT1 086 Fixed Mount Tube 86 long rod lengths 092 through 100 MT1 096 Fixed Mount Tube 96 ...

Page 14: ...e HESI Power Pack 110 vac NEMA 4X stainless steel SF1 4 SureFire HESI Power Pack 220 vac NEMA 4X stainless steel 2 SELECT THE APPROPRIATE HESI INTERCONNECTING CABLE PART NUMBER DESCRIPTION SF1 CA1 06 SureFire HESI interconnecting cable with connectors 6 feet long SF1 CA1 09 SureFire HESI interconnecting cable with connectors 9 feet long SF1 CA1 12 SureFire HESI interconnecting cable with connector...

Page 15: ...d 5 SELECT THE APPROPRIATE RETRACTION MOUNTING TUBE The Retraction Mounting Tube part number will start with MT1R followed by three digits These three digits specify the Retraction Mounting Tube length in inches available in two inch incre ments from 28 028 to 170 170 Important Note You must specify a Retraction Mounting Tube that is at least 10 shorter than the HESI Spark Rod specified in step 3 ...

Page 16: ... which is found defective in material or workmanship or which otherwise fails to conform to the description of the product on the face of its sales order THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTIES AND FIREYE MAKES NO WARRANTY OF MERCHANTABILITY OR ANY OTHER WARRANTY EXPRESS OR IMPLIED Except as specifically stated in these general terms and conditions of sale remedies with respect to any pro...

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