background image

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.

Содержание Caloritech EX Series

Страница 1: ...all times in conjunction with temperature controls to limit the liquid temperature below the maximum allowable process design temperature b Terminal box internal surface temperature control to limit t...

Страница 2: ...h 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...

Страница 3: ...3 3 TABLE OF CONTENTS A Diagrams 4 B Description 6 C Installation 7 D Operation 8 E Maintenance 9...

Страница 4: ...or Vertical Immersion Heater Round Box IP66 Stilted TERMINAL BOX TEMPERATURE SENSOR THERMOCOUPLE OR RTD TERMINAL BOX SENSOR THERMOCOUPLE OR RTD A DIAGRAMS TERMINAL BOX TEMPERATURE SENSOR THERMOCOUPLE...

Страница 5: ...EMPERATURE SENSOR THERMOCOUPLE OR RTD ELEMENT SUPPORT KEEPER Figure 3 Round Box Stilted Electrical Ratings Voltages up to 690 Vac 1 or 3 PH Wattages Up To 4 000KW 50 OR 60Hz Ambient Temperature Rating...

Страница 6: ...et surface is clean and dry before installing heater 5 The terminals must be protected at all times from moisture or vapour In explosive atmospheres explosion resistant terminal housings must be used...

Страница 7: ...k supply voltage for compliance with heater nameplate voltage DO NOT connect the heater to a voltage source other than listed on the heater nameplate 8 If the heater is immersed in liquid a level cont...

Страница 8: ...rmal earth fault and earth leakage current Depending on the electrical power system the following protection device must be installed with the heater TT and TN Systems A residual current protection de...

Страница 9: ...check factory for instructions 2 Periodically check electrical connections for tightness and check wire insulation for any damage and replace if necessary 3 Remove the immersion heater periodically t...

Страница 10: ...NOTES...

Страница 11: ...NOTES...

Страница 12: ...but not so as to limit the generality of the foregoing includes physical chemical or mechanical abuse accident improper installation of the product improper storage and handling of the product improp...

Отзывы: