13
Installation
Site Selection: Install furnace on a sturdy surface and
allow space for ventilation.
The electrical specifications are located on the specifica-
tion
plate on the back of the furnace. Consult Barnstead/
Thermolyne if your electrical service is different than
those listed on the specification plate. Prior to connecting
your Type 46100 or 46200 furnace to your electrical
supply, be sure the front circuit breaker is in the OFF
position.
Furnace Connection
Remove cover plate for access to the electrical connec-
tions. Connect electricity to the three terminals found
behind this plate; one side of the 208 or 240 volt service
to the top terminal, L1; the other side of the 208 or 240
volt service to the bottom terminal, L2, and the ground
(usually green wire) to the center terminal marked GND.
For 220 volt service,connect the neutral to the top
terminal (marked L1); the 220 volt line to the bottom
terminal, L2, and the ground to the center terminal
marked GND. Electricity must be brought to the furnace
through an appropriate conduit system, through the hole
in the back panel at the bottom left rear of the furnace,
and connected as described. Be sure to observe local
wiring codes in connecting.
Initial heat-up procedure:
The elements may bend slightly sideways due to electro-
magnetic forces generated between the element shanks.
To prevent this bending, heat the furnace up to 1650°C
for 10-20 minutes. Then let furnace cool to ambient
temperature. See Operation for your particular controller
for information on setting temperature setpoints.
Installation
