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© 2020 Carrier
SAFETY
Safety is the responsibility of each individual who installs, operates, or maintains Fireye equipment.
The Fireye design of the HESI includes personnel safety as a basic design element.
The HESI assembly uses a 2000-vdc energy source to produce a 12-joule spark for fuel ignition
purposes. Observe the following safety instructions as a minimum to ensure basic electrical safety.
1.
Use equipment only for its intended use.
2.
Follow the proper installation, operation, and maintenance procedures discussed in this publica-
tion.
3.
Ensure that all electrical apparatus used to perform work on this equipment is in good working
order and calibrated correctly.
4.
Do not lift or disconnect grounding cables/wires while equipment is energized.
5.
Do not perform modifications on this equipment.
6.
Before opening the power pack’s hinged cover, disconnect the electrical supply from the box.
Allow at least 2 minutes for the capacitor to discharge. Exercise extreme care when the power
pack cover is open.
7.
Before disconnecting terminals, place a voltmeter across terminals 1 and 2 of capacitor Cl to
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 contact with the spark rod during the test period. Replace the rod immediately
following testing.
WARNING: Only knowledgeable and qualified technicians should be allowed access to this
system or to its components. The installation, maintenance, and operation of electronic
equipment entails several elements of danger. Carelessness can result in serious injury or
death from electrical shock, falls, or improper use of tools and test equipment
INSTALLATION
POWER PACK
Observe the following steps for installing the power pack assembly:
1.
Locate power pack away from extreme temperatures and as far away from burner front plate as
possible. Allow for cable length, retraction, and boiler expansion.
2.
Mount the power pack in a suitable location. Ensure that the cable connectors are facing down
(power pack is upright) to facilitate cable installation
WARNING: Hazardous voltage is present and serious injury can occur.
