Installation, Operation, and Maintenance Instructions
1.0 Handling
1.1 Handle with care to avoid damage to heater and components
1.2 Make sure heater is protected from contamination during
storage. A dry environment if preferred.
2.0 Safety
2.1 WARNING: Make sure power supply is turned off before
installation or service of electric heater to prevent electrical
shock or damage to equipment.
2.2 WARNING: Circuit should have separate disconnect means
which shall be capable of being locked in the open position
and also in sight from the heater.
2.3 WARNING: Wiring must conform to the National Electric
Code and Local Regulations and should be performed by a
a qualified electrician. Make sure wiring is of a suitable
temperature rating, amperage rating, and the location.
2.4 WARNING: When servicing, handle with caution, the heater
surface may be hot.
2.5 WARNING: Do not install heater into a medium or an
environment that could result in an explosion, fire, or
hazardous condition. Contact Vulcan regarding heaters that
are specifically designed for hazardous locations.
3.0 Installation and Operation
3.1 Caution: Make sure the heater supply voltage is the same
as the rated heater voltage.
3.2 Caution: Heater should be properly grounded to prevent
electrical shock hazard
3.3 Caution: DO not support or suspend heater from termination
or wiring
3.4 A common cause of heater failure is contamination of the
the internal heater components through the termination end
of the heater. Make sure the heater is protected from
contamination in the final application.
3.5 Make sure heater termination is not exposed to water or
other liquids. Make sure that no dripping from condensation on
cold water pipes or other sources can fall on any exposed
electrical wiring connections or components.
3.6. Terminations should be properly tightened and connected
to hook-up wiring. A loose connection will result in over-
heating at the connection and could lead to premature
failure. Where possible, use a wrench or pliers to prevent
twisting of the terminals during installation.
3.7 It is good practice to avoid routing of thermocouples with
power wiring. Use separate conduit. Thermocouples,
thermostat capillary tubes, and wiring should be kept clear
of heater terminals by distance or appropriate insulation.
3.8 Do not use Finned Tubular heaters with explosive gasses or
air mixtures that may result in fire, explosion, or other
hazardous conditions.
3.9 Threaded bushing mounting fittings are provided on some
models for convenient mounting into duct, ovens, or other
structures designed for air heating.
3.10 Units designed at higher watt densities should have air flow
directed over finned portion of heater. Inadequate airflow over
the heater will result in premature heater failure.
3.11 Make sure installation allows for free movement of air over
the heater(s). Installations that include multiple heaters
should be designed with a staggered heater configuration if
possible.
3.12 It is recommended that the heater(s) be wired in such a way
that a failure in fan motor providing air flow will automatically
shut off heater.
3.13 Systems designed with air flow should incorporate an over
temperature thermostat, flow, or pressure switch into the
system to prevent heater and system damage in event of
reduced, restricted, obstructed, or no air flow.
3.14 Do not exceed 110% of rated voltage. Higher voltages result in
higher wattage output which could damage the heater, system,
or medium heated.
4.0 Maintenance
4.1 For most applications, no heater maintenance is required.
4.2 Disconnect line switch prior to any testing or work on the heater
4.3 Check heater terminations after the initial 8 hours and tighten any
loose terminal and jumper connections.
4.4 Recheck wiring periodically to ensure wiring has not become
damaged, worn, or loose due to vibration or other application
related conditions. Tighten, repair, or replace as needed.
5.0 Trouble Shooting
5.1 WARNING: Disconnect power supply to heater(s) before performing
any trouble shooting procedures.
5.2 Check supply voltage to heater to ensure there is power.
5.3 Check wiring circuit- make sure heater is properly wired and all
supporting controls, relays, contactors, and other circuit related
switches are also properly wired and functional.
5.4 Check heater(s)- No heat due to a heater failure is generally due
to an open heater circuit. Check heater resistance across both
terminals or leads. A reading of infinity (no continuity) indicates an
open circuit within the element and the heater must be replaced.
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