Summary of Contents for Thorne & Derrick EXHeat RFA Series
- Page 1 INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS FOR EXHEAT INDUSTRIAL IMMERSION HEATERS (INCLUDING FLAMEPROOF) Please read these instructions thoroughly before installation and ensure they are passed on to the end-user.
- Page 2 GENERAL All work should be carried out by suitable qualified personnel. Heaters must be handled with care and stored in dry conditions. Adequate withdrawal space must be provided to allow the removal of the heater assembly. Carefully remove all protective packaging and visually inspect unit for any transit damage. All prevailing rules, regulations and bylaws in force at the time and place of installation must be observed.
- Page 3 EARTH CONNECTION WARNING – these heaters MUST BE EARTHED. An internal earth connection is provided inside the terminal box. An external earth connection (flameproof heaters only) is located adjacent to one of the terminal box cable entries. OPERATION Ensure that the active section of all the heating elements are fully immersed in the fluid to be heated at all times whilst energized.
- Page 4 6.6.3 Annually Carry out all 3 monthly and 6 monthly checks as above. Check for element failure or low insulation resistance. Only Exheat Ltd or its approved agent to carry out rod type element replacement in flameproof heaters otherwise the certification will be invalidated. If heaters are being left unused for a period greater than 3 months, carry out 6 monthly maintenance before energizing.
- Page 5 Marking RFA… Type: II 2 G (ATEX certified heaters only) Ex d IIC T6 to T3 RFA… Type (Externally adjustable version): II 2 G/D( ATEX certified heaters only) Ex d IIC T6 to T3 Ex tD A21 IP6X T…°C RFA-C… Type: II 2 G (ATEX certified heaters only) Ex d IIC T6 FP…...
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