13
Power Switch:
Switch power switch to the “ON” position. The switch will
illuminate when power is on.
FAN:
The fan located in the rear of the control section will run
continuously as long as power is supplied to the furnace,
even when the furnace power switch is OFF. This serves
to remove residual heat after the furnace is turned OFF
so the heat does not cause damage to sensitive elec-
tronic components.
Cycle Indicator:
The amber cycle light will illuminate whenever the power
is being applied to the elements.
Door Safety Switch:
The door safety switch removes power from the heating
elements when the door is opened. Open and close
door a few times, note that the amber cycle light will go
out while the door is open. If this condition is not true,
consult the troubleshooting section before proceeding.
Digital Readout:
The Digital Readout continuously displays chamber
(upper display) and set point (lower display) tempera-
tures.
G
ENERAL
O
PERATION
OF
F
URNACE
CAUTION
If the power supply must be disconnected from the
furnace at any time, be sure the chamber tempera-
ture is 500°C or less before doing so.
WARNING
To avoid electrical shock, this furnace must have
the door switch operating properly.
