22
WARNING
Fire/Explosion Hazard.
Do not exceed the ratings of the flange as listed in
ANSI BI6.5. In case of code stamped of registered heater, do not exceed
the rating as stated in the data report and/or registration documents. Do
not operate the heater in the presence of combustible gases, vapours,
dusts or fibres unless the heater is specifically marked for the hazardous
location and heater operating temperature does not exceed the
temperature code rating. Corrosion of the sheath could result in a ground
fault which, depending upon the fluid being heated, could cause a fire or
an explosion.
WARNING
Fire Hazard.
If a thermostat is provided, it is designed for temperature
control service only. Since the thermostat does not fail safe, it should not
be used for temperature limiting duty. Wiring to this device is the users'
responsibility.
Heaters are capable of developing high temperatures, therefore extreme
care should be taken to:
a. Use explosion-proof terminal enclosures in explosive atmospheres.
b. Maintain distance between heater and combustible materials.
The heater must be installed and operated in accordance with the following
specific conditions of use:
1. The heater shall be installed with electrical safety devices as described in the Installation, Operating and
Maintenance manual and in accordance with local codes and standards.
2. It is the user’s responsibility to connect the installed temperature sensors to safety devices as defined in
IEC 60079-0, that are fail-safe and can only be reset manually. The temperature monitoring circuit shall
be set according to the controller set point label on the equipment and used to disconnect the supply
when operated.
3. Anti-condensation heater, if used, shall be prevented from operating while the immersion heater is in
operation.
4. The temperature classification of the heater is based on the complete immersion of the heater elements
in either a fluid or gas. Depending on the use of the heater, a flow or liquid level device must be used to
ensure immersion in the process medium. Refer to the Installation, Operating and Maintenance manual
for details.
5. The heater must be installed in accordance within the operating parameters taken from the nameplate,
caution labels, instruction manual and condition of use documentation.
6. An electrical protection device must be installed to protect against earth related faults in accordance
with the Installation, Operating and Maintenance manual.
Summary of Contents for Caloritech EX Series
Page 10: ...NOTES...
Page 11: ...NOTES...