Blodgett BLP-E Series - Manual (Page 13)

OM-BLT/BLP-GE 11
Sequence of Operation
The following “action-reaction” outline is provided to help you understand how the braising
pan actually functions.
When you start up the pan by turning the thermostat from “OFF” to a desired temperature,
the thermostat switch closes. This causes the contactors to close, and allows power to flow
to the heating elements and the indicator light.
When the pan temperature reaches 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 heating
elements and the indicator light. As soon as the thermostat senses that the pan is cooling
below the set temperature, the thermostat closes, the contactors close, and the heaters and
indicator light come on again.
This on and off cycle continues, maintaining the pan at the set temperature. This is why the
indicator light on and off cycling is seen during normal operation. If the pan temperature
exceeds 425°F for any reason, a high-limit thermostat shuts off the power until the pan
cools. At that point, the thermostat automatically resets to permit normal operation to start
again.
Turning the thermostat to “OFF” shuts down all control and heating circuits.
The thermostat controls heating by alternating between feeding full power and completely
cutting power off. The pan heats as fast as it can until it reaches the set temperature, no
matter what that temperature is. Turning the thermostat to a higher setting will cause
heating to continue longer, until the pan reaches a higher temperature, but it cannot make
the pan heat any faster.
Manual tilt models, turning the hand wheel rotates a worm, which turns a gear wheel on
one of the trunnions supporting the pan body. Turning the gear produces the tilting action.
Power tilt models, pushing the up/down switch operates a gear motor which turns worm
and gear wheel as described above.
For all braising pans, the power to the heaters is cut off when the pan is tilted past a slight
inclination of 10° degrees. It is acceptable to cook with the pan tilted forward at a small
angle (about 5 - 7 degrees) to let liquids collect to front of pan or allow them to drain out of
the draw off valve.