Operation, All Models; Power Switch; Cycle Light; Door Safety Switch - Barnstead 30400 Operation Manual

Operation, All Models

Warning
To avoid personal injury do not use in the
presence of flammable or combustible
chemicals; fire or explosion may result.
This device contains components which
may ignite such materials.
Hot Surface
Caution: Avoid Contact. To avoid burns,
this furnace must not be touched on the
exterior or interior surfaces during use or
for a period of time after use.
Warning
Always wear safety glasses or a safety
shield and high temperature gloves when
loading or unloading the furnace. Long
sleeved, fire retardant clothing and a fire
retardant apron is also recommended.
Warning
To avoid electrical shock, the door safety
switch must be operating properly.
12

Power Switch

Both the ON/OFF power switch and the digital display
will illuminate when power is switched ON. The furnace
will begin to heat to its controller's current setpoint.
(See the instructions for your type of controller for infor-
mation on checking and setting the setpoint.)

Cycle Light

The amber cycle light will illuminate whenever the
power is being applied to the heating elements. The
cycle light will turn on and off as the furnace reaches
the setpoint.

Door Safety Switch

The door safety switch removes power from the heat-
ing elements when the door is opened. Open and
close the door a few times; note that the amber
CYCLE light will switch off when the door is opened. If
this condition is not true, consult the Troubleshooting
section before proceeding. This check must be done
when the furnace is heating and the cycle light is illumi-
nated.