Blodgett MT3255 Series - Athena Temperature Controller with Closed Loop DC Drive System

OPERATION
3 --- 4
ATHENA TEMPERATURE CONTROLLER WITH CLOSED LOOP DC DRIVE SYSTEM
10
TEMPERATURE
ON OFF
HEAT
6
ON OFF
BLOWER
9
ON OFF
CONVEYOR
1
ACTUAL SETPOINT HEAT
83 4 5 7
COOK TIME
2
FIGURE 4
CONTROL DESCRIPTION
1. COOK TIME DISPLA Y --- Gives the belt speed.
2. ACTUAL TEMPERATURE K EY --- Press to dis-
play the actual oven temperature.
3. CONVEYOR ADJUSTMENT KEYS --- Press to
adjusttheconveyorspeed.
4. ACTUAL TEMPERATURE LIGHT --- When lit in -
dicates the control is displaying the actual
oven temperature.
5. SETPOINT LIGHT --- When lit indicates control
is displaying desired cook temperature.
6. HEAT LIGHT --- When lit indicates that the con-
trol is calling for heat.
7. UP and DOWN ARROW KEYS --- Used to in -
crease/decrease desired cook temperature.
8. HEAT SWITCH --- Controls power to the burner.
9. BLOWER SWITCH --- Controls power to the
blowers.
10. CONVEYOR SWITCH --- Controls power to the
conveyor motor.
11. CONVEYOR ADJUSTMENT KNOB --- Turn to
adjusttheconveyorspeed.
CONTROL OPERATION
1. Turn the manual gas valve to the OPEN posi -
tion. This is only necessary on initial start- up.
2. Turn the BLOWER SWITCH (9) to ON.
3. Press the UP or DOWN ARROW k eys (7) to en-
ter the desired cook temperature.
4. Turn the HEAT SWITCH (8) to ON.
NOTE: If the oven fails to ignite after the thirty
(30) second purge, turn the blower
switch OFF and wait 5 minutes before
turning back ON.
5. Press the ACTUAL TEMPERATURE KEY (3). If
the actual temperature matches the setpoint
the oven is ready to cook.
NOTE: The display will flash until the actual
temperature is within the preset devi-
ation alarm band. The default setting is
¦ 20_Fofthesetpoint.
6. Press the UP ARROW (2) to increase the con-
veyor speed and the DOWN ARROW (2) de-
creases the conveyor speed.
7. Turn th e BLOWER (6), C ONVEYOR (7) and
HEAT (8) SWITCHES to OFF. The Cool Down
circuit is energized. The blower motor(s) con-
tinue to run until the oven temperature is be-
tween 135---170_F (57---77_C). The digital
temperature display remains lit until the cool
down circuit de-energizes.
The oven will hold t hese parameters daily and will
require no further adj ustments unless a different
product is placed in t he oven.
NOTE: E ach oven contains different components
and must be adjusted individually.