5
Controller
Attach the controller to the wall next to the kiln at a minimum
distance of 30 cm. (In some models, it is mounted directly
on the kiln with the appropriate holder.) Install the wall
mounting according to the instruction manual for the
controller. The controller is connected to the kiln’s control
box with a multipolar plug. Be aware that the plug can be
inserted with ease only in one position!
The connection is secured with the retaining clip.
Do not let the power cable or the controller cable come into
contact with the kiln shell or the lid during the firing!
Electrical Connection
According to the VDE (German electrotechnology association), PYROTEC-kilns belong to the
protection class I. Electrical safety is provided primarily by the protective earth connection.
Therefore, the mains supply must be checked or installed by a qualified electrician before
commissioning the kiln. Be sure that the wire cross section is sufficiently dimensioned, and
the corresponding fuse has the proper size. The necessary technical data is found on the
type plate on the kiln’s control box.
The wall outlet must be easily accessible in order to be able to disconnect the kiln at any time
from the power grid.
Do not connect an additional electrical load to this outlet!
Make sure that this power outlet is equipped with its own fuse with sufficient breaking
capacity.
It is imperative that the kiln is connected to the power supply
without an extension cable
.
Power cables of any length are available at low additional costs when ordering the kiln.
First Firing
During commissioning, the kiln must be operated with kiln shelves but without ware, using a
firing program with a long heating time or slow rise in temperature. We recommend a curve of
180°C per hour to 1000°C and a heating time of 3 hours. During this firing, residual moisture
evaporates from the insulation and the shelves. Additionally, the heating elements build up a
protective oxide layer, which results in a longer service life.
During the program, the contactor can be heard switching on and off. Unpleasant odors can
develop during the first two to three firings due to organic binder burnout in the insulation
material.
As a result of the very high temperature differences, fine cracks appear in the fire bricks.
They can appear already during the first firing. They have no influence on the firing process.
