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INSTALLATION
CAUTION
CAUTION
Heaters with overtemperature
devices require specific installation orientation.
Overtemperature devices are required to be
installed in accordance with local codes and
standards and be designed to de-energize the
heater on an overtemperature event.
Electric Shock Hazard
Disconnect all power
before installing or servicing the heater.
Failure to do so could result in personal injury
and/or property damage. All maintenance
and installation should be done by qualified
personnel in compliance with local codes.
CAUTION
WARNING
Fire or Shock Hazard
Moisture accumulation on
the dielectric material of the elements, sheath
corrosion or overtemperature on the heaters
could cause a fault to ground generating
arcing and molten metal. Install proper ground
fault protections to prevent personal injury or
property damage.
WARNING
WARNING
The end user is responsible for the
proper integration of the electrical systems,
including protections, backups, and controls.
CAUTION
CAUTION
For explosive atmospheres an
approved liquid level and/ or temperature
limiting control must be used to de-energize
in the event of system malfunction. Unless
otherwise specified, use supply wire suitable
for 90°C min.
1.
Unpack and check heater for any damage that may have
been caused during shipping.
2. Remove any protective packaging in the screw or flange
connecting fitting.
3. Remove any dessicant material in the electrical box.
4. Insert heater into vessel/reservoir and verify that the heating
elements are not making contact with the surface of the
vessel.
5. Check that all terminal connections are tight.
6. Check supply voltage for compliance with heater nameplate
voltage. DO NOT connect the heater to a voltage source
other than listed on the heater nameplate.
7. If the heater is immersed in liquid, a level control switch
or overtemperature sensing device affixed to the
uppermost heating element is required. Check factory for
recommendations.
8. If the heater is installed in a pressurized system, a safety relief
valve must be used to prevent a hazardous pressure buildup.
9. Horizontal element support bundles may be necessary with
an immersed length over 1270 mm (50"). Refer to the heater
drawings for details.
10. For flange heaters installed in a pressurized system, proper
bolting hardware must be used that is suitable for the
pressures and temperatures of the equipment. Use an
appropriate gasket for the pressure and temperature; torque
the bolts on an even clockwise or counter clockwise pattern.
Refer to the heater drawings for details.
11. Heaters with explosion resistant terminal housings must only
be used in locations for which the heaters are certified.
• Check heater nameplate information for approval code.
• Never energize an explosion resistant heater unless the
terminal housing cover is properly tightened.
• An immersion heater for explosive atmospheres is
approved for use only if an approved liquid level
control and/or temperature limiting device is used to
de-energize the heater under low liquid conditions.
12. On ATEX/CE certified heaters which are being installed in the
EU, the installation of heater shall be in accordance with the
requirements of the local jurisdiction.
13. Temperature sensors supplied are required to be used with
an overtemperature protection device in order to maintain
the Temperature Code (T-Code) of the heater.
CAUTION
Use copper conductors only
with sufficient current carrying capacity for
the heater circuit load and in accordance
with the local electrical code. Check the
heater nameplate for minimum conductor
temperature rating. Temperature deration
factors must be applied for heaters operating
above 30°C (86°F).
CAUTION
WARNING
WARNING
Creepage and clearance for
electrical connections to the heater must be
maintained in accordance with local codes and
standards for IECEx and ATEX Increased Safety
installations.
WARNING
WARNING
Do not set the overtemperature
protection device above the setpoint indicated
on the heater nameplate. Refer to the heater
drawings for more information.
