8.0 Repairs and Replacements
8.6
Element Fitting and Replacement
Replacements: see section 7.7. If at any time the power limit has been increased, reset
it to its original value (see section 11.0 at the back of this manual for the original value).
New elements must not be mixed with aged elements. If a single element fails in an
aged set of elements then replace with a new set. The remaining aged elements can be
used as spare parts in the future.
Disconnect the product from the electrical supply.
Remove the end guards to gain access to the element connections.
Remember that the elements are fragile and expensive and that they can be damaged
by contamination: handle them with care and keep them clean.
Replacements: make a note of the actual braid and cable connections to the elements.
For rod elements disconnect the clips, lift off the braids and carefully withdraw each
element. Refer to the image below.
Carefully insert the new elements into the product. Ensure that the rod elements are
placed centrally: the same length should be outside the insulation at each end.
TZF: The 3 rod elements are connected in series, using braids. The 6 double-spiral
elements are fitted 3 in series at each end, connected by 10 mm cable. See fig. 9. In
the case of 3-phase + neutral, each set of elements is connected to a live from an SSR
at one end, at to neutral at the other. In the case of 3-phase delta (no neutral), each
set of elements is connected to a live from an SSR at one end and a direct live from
another phase at the other. The normal phase connections are A1-C, B1-A, C1-B.
Replace the end guards and connect the product to the electrical supply.
If aged elements have been replaced, reset the products power limit.
If you have any problems with this procedure, please contact the Carbolite Gero service
division.
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Содержание CARBOLITE GERO TZF 15/90/610
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