Blodgett MT3255 Series, Руководство по обслуживанию и ремонту

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MT3255 and MT3270
3---3
ATHENA TEMPERATURE CONTROLLER WITH OPEN LOOP DC DRIVE SYSTEM
10
TEMPERATURE
ON OFF
HEAT
6
ON OFF
BLOWER
9
COOK TIME
ON OFF
CONVEYOR
1 2
ACTUAL SETPOINT HEAT
8 3 4 5 7
FIGURE 3
CONTROL DESCRIPTION
1. COOK TIME DISPLAY --- Gives the belt speed.
2. CONVEYOR ADJUSTMENT KNOB --- Turn to
adjust the conveyor speed.
3. ACTUAL TEMPERATURE KEY --- Press to dis-
play the actual oven temperature.
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.
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 keys (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
_
F of the setpoint.
6. Turn the CONVEYOR SWITCH (10) to ON . The
conveyor belt starts to move. Turn the CON-
VEYOR ADJUSTMENT KNOB (2) clockwise to
increase speed, counter-clockwise to de-
crease speed. Turn the knob-lock behind the
control knob to hold the desired belt speed
7. Turn the BLOWER (6), CONVEYOR (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 these parameters daily and will
require no further adjustments unless a different
product is placed in the oven.
NOTE: Each oven contains different components
and must be adjusted individually.