Koehler K244 Sereis, Operation And Instruction Manual

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K244XX Programmable Ashing Furnace
Operation and Instruction Manual
K244XX-Manual
- 4-
3.2.2 Assembling the Ventilation Pipe
•
The Ventilation Chimney must be attached to
the top of the furnace using the 3 supplied
screws.
•
In all cases, we recommend connecting the
furnace to an exhaust ductwork, leading the
arising gasses out of the facility
•
A standard ventilation pipe of metal with
NW80 – NW 210 can be used. It must be laid
at a constant slope and fastened to the wall or
ceiling.
•
Caution: The exhaust gases can only be
carried off if the room is ventilated by a
corresponding fresh air opening.
3.2.3
Electrical Connection
•
Attach the correct plug to the power supply
cord(s) and connect the main plug in a
corresponding receptacle which is protected
sufficiently depending on the rated power of
the furnace. If the furnace is ordered /
delivered without a plug, a qualified electrician
must connect the furnace.
•
NOTE: Using extension cables and/or junction
boxes may lead to a reduced furnace output
due to the voltage drop in the lines. The
power is also reduced if the connection line to
the junction box is very long, and the furnace
will not reach its nominal temperature. Please
have the connection checked by an
electrician. The voltage may not drop below
the rated load by more than 10%.
WARNING: For safety, disconnect the power
when performing any maintenance and/or
cleaning.
3.2.4 Initial Heating Procedure
•
To dry out the brick lining and to create an
oxide protection layer on the resistance wire,
an initial heat run must be performed prior to
testing. This may cause an unpleasant smell.
Provide sufficient ventilation.
•
Heat the empty furnace up to 1050 ºC over the
course of six hours. At each change rise in
temperature, run the AUTO TUNE on the
tuning page. Once 1050 °C is reached,
maintain this temperature for one hour, and
then let the furnace cool down on its own.
•
The furnace is now ready to operate.
4
Temperature Controller
4.1 Description of Controller
4.1.1 Main Breaker and Power Switch/
Control Current Switch
The main breaker is located on the right rear
bottom corner and the power switch / control
current switch is located on the right side of the
control panel. Stop running a heating program
before turning off the furnace with the power
switch.