Groen OM-BTD, Operator'S Manual

Page: 9 / 20

OM-BTD/FPC 9
Sequence of Operation
The following “action-reaction” outline is provided to help you understand how the
braising pan actually functions.
When you start the pan by turning the thermostat dial from “OFF” to a desired
temperature, the thermostat switch closes. This action causes the contactors to close,
allowing power to flow to the heating elements and the indicator light. When the
temperature of the pan rises to the value set on the thermostat dial, the thermostat
switch opens and causes the contactors to open. This stops the flow of power to the
heaters and indicator light.
As soon as the thermostat senses that the pan has cooled below the set temperature,
the thermostat switch closes, the contactors close, and the heaters and indicator light
come on again.
This on-off cycling continues, holding the pan at the set temperature. These cycles
cause the indicator light to go on and off during normal operation.
If the pan temperature rises above 425°F (218°C) for any reason, a high-limit
thermostat shuts off power until the pan cools. At that point the thermostat
automatically resets and allows normal operation to begin again.
Setting the thermostat dial to “OFF” shuts down all control and heating circuits.
The thermostat controls heating by alternately feeding full power and completely
cutting off power. The pan will heat as fast as it can until it reaches the set
temperature, no matter what that temperature is. Turning the thermostat dial to a
higher setting will only cause heating to continue longer, until the pan reaches the
higher temperature. It will not make the pan heat any faster.