Single phase models require a 60 Hz,
208/240VAC, 3 wire service consisting of L1, L2
and ground. Three phase models require a 60 Hz,
208/240/440/480, 4 wire service consisting of L1,
L2, L3 and ground. Wiring from the power source
to any of the single phase units must be a minimum
of #6 AWG copper stranded wire. Wiring from the
power source to the 208/240 three phase units
must be a minimum of #8 AWG copper stranded
wire. Wiring from the power source to the 440/480
three phase units must be a minimum of #12 AWG
copper stranded wire.
ELECTRICAL SPECIFICATIONS (per section)
KWHzVoltsPhase
U.S. and Canadian installations
11.060208151-51-6 AWG
11.0602083312929-8 AWG
11.060220Ć240144-44-6 AWG
11.060220Ć2403262424-8 AWG
11.0604403151414-12 AWG
11.0604803141313-12 AWG
General Export installations
11.05020831818184Size per local code
11.050220Ć240148--48Size per local code
11.050220/38031816162Size per local code
11.050240/41531814144Size per local code
11.050230/40031815153Size per local code
CE installations
11.0504003N1815153Size per local code
General Export Installations
Single phase models require a 50 Hz,
220/240VAC, 3 wire service consisting of L1, L2
and ground. Three phase models require a 50 Hz,
415/240 or 380/220 VAC, 5 wire service consisting
of L1, L2, L3, neutral and ground. Use 90_C wire
and size according to local codes.
CE approved installations
Single phase models require a 50 Hz, 230VAC 3
wire service consisting of L1, neutral and ground.
Three phase models require a 50 Hz, 400/230VAC,
5 wire service consisting of L1, L2, L3, neutral and
ground. Use 90_C wire and size according to local
codes.
Amps
L1L2L3N
Electrical Connection
(minimum size)
1-1
CHAPTER 2
OPERATION
MARK V
SEQUENCE OF OPERATIONS
NOTE: The following instructions represent the most common controllers. For questions regarding other
options call the Blodgett Service Department at (800)331Ć5842.
COOK ONLY - 18459 REV D
Component Reference
NOTE: Refer to FIGURE 1 page 2-2 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOK TIMER
3. DOOR SWITCH
4. TEMPERATURE CONTROL BOARD
5. AXIAL FAN
6. CONV ECTION FAN MOTOR
7. TEMPERATURE PROBE
8. SOLID STATE POTENTIOMETER
9. CENTRIFUGAL SWITCH
10. COOK LIGHT
11. ELEMENT CONTACTOR
12. HEATING ELEMENTS
13. 50 WATT LAMPS
14. LIGHT SWITCH
15. TIMER MOTOR
16. BUZZER
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to terminal #1 of the
cook timer (2), one side of the door switch (3),
terminal #8 of the temperature control board
(4) and the axial fan (5).
2. If the doors are closed the door switch (3)
should also be closed sending power to termiĆ
nal #6 of the temperature control board (4)
and to the convection fan motor (6).
NOTE: This motor has a built in centrifugal
switch (9) that closes when the motor
reaches full speed. If found faulty do
not bypass, the whole motor should be
replaced.
temperature control board (4) and the
solid state potentiometer (8).
Power is sent out of terminal #7 to one side of
the centrifugal switch (9). If the convection fan
motor (6) is at full speed the centrifugal switch
(9) closes sending power to the cook light (10)
and one side of the element contactor (11).
When the contactor closes the heating eleĆ
ments (12) power up.
4.The 50 watt lamps (13) only receive power when
the light switch (14) is activated. These lamps
are 115 volt and are wired in series parallel.
5. When the cook timer (2) is set for a time a cirĆ
cuit is made between terminals #1 and #2
powering up the timer motor (15). At the expiĆ
ration of the set time the switch in the cook timĆ
er (2) toggles from 1-2 to 1-4 powering up
the buzzer (16).
NOTE: Put the timer in the home position to siĆ
lence the buzzer.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 1.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the resistive values of the
heating elements. The reading should be
taken in a cold state.
3. On a call for heat from the temperature control
circuit, a circuit is completed between termiĆ
nals #6 and #7 of the temperature control
board (4).
NOTE: The temperature control circuit conĆ
sists of the temperature probe (7), the
2-1
13
OPERATION
10
5
11
12
14
6
FIGURE 1
9
8
16
4
7
1
15
2
3
2-2
MARK V
CE APPROVED COOK ONLY - 33339 REV C
Component Reference
NOTE: Refer to FIGURE 2 page 2-4 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOK TIMER
3. DOOR SWITCH
4. TEMPERATURE CONTROL BOARD
5. AXIAL FAN
6. CONVECTION FAN MOTOR
7. TEMPERATURE PROBE
8. SOLID STATE POTENTIOMETER
9. CENTRIFUGAL SWITCH
10. HIGH LIMIT SWITCH
11. ELEMENT CONTACTOR
12. COOK LIGHT
13. HEATING ELEMENTS
14. 50 WATT LAMPS
15. LIGHT SWITCH
16. TIMER MOTOR
17. BUZZER
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to terminal #1 of the
cook timer (2), one side of the door switch (3),
terminal #8 of the temperature control board
(4) and the axial fan (5).
2. If the doors are closed the door switch (3)
should also be closed sending power to termiĆ
nal #6 of the temperature control board (4)
and to the convection fan motor (6).
Power is sent out of terminal #7 to one side of
the centrifugal switch (9). If the convection fan
motor (6) is at full speed the centrifugal switch
(9) closes sending power to one side of a high
limit switch (10), if the high limit is closed then
power will be sent to one side of the contactor
(11) and an indicator light (12). When the conĆ
tactor closes the heating elements (12) power
up.
4.The 50 watt lamps (13) only receive power when
the light switch (14) is activated.
5. When the cook timer (2) is set for a time a cirĆ
cuit is made between terminals #1 and #2
powering up the timer motor (15). At the expiĆ
ration of the set time the switch in the cook timĆ
er (2) toggles from 1-2 to 1-4 powering up
the buzzer (16).
NOTE: Put the timer in the home position to siĆ
lence the buzzer.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 2.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the resistive values of the
heating elements. The reading should be
taken in a cold state.
NOTE: This motor has a built in centrifugal
switch (9) that closes when the motor
reaches full speed. If found faulty do
not bypass, the whole motor should be
replaced.
3. On a call for heat from the temperature control
circuit, a circuit is completed between termiĆ
nals #6 and #7 of the temperature control
board (4).
NOTE: The temperature control circuit conĆ
sists of the temperature probe (7), the
temperature control board (4) and the
solid state potentiometer (8).
2-3
13
OPERATION
15
14
11
8
17
4
6
2
7
1
5
3
12
10
9
FIGURE 2
2-4
MARK V
COOK AND HOLD - 18791
Component Reference
NOTE: Refer to FIGURE 3 page 2-7 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOK TIMER
3. COOK TEMPERATURE CONTROL BOARD
4. HOLD TEMPERATURE CONTROL BOARD
5. AXIAL FAN
6. DPDT RELAY COIL
7. DOOR SWITCH
8. CONV ECTION FAN MOTOR
9. TEMPERATURE PROBE
10. SOLID STATE POTENTIOMETER
11. CENTRIFUGAL SWITCH
12. COOK LIGHT
13. ELEMENT CONTACTOR
14. HEATING ELEMENTS
15. TIMER MOTOR
16. BUZZER
17. COOK AND HOLD TIMER
18. COOK AND HOLD LIGHT
19. TEMPERATURE PROBE
20. SOLID STATE POTENTIOMETER
21. 50 WATT LAMPS
22. LIGHT SWITCH
Cook Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to terminal #1 of the
cook timer (2), terminals #6 and #8 of the cook
temperature control board (3), terminal #8 of
the hold temperature control board (4) and the
axial fan (5). Power is also applied to the N.C.
set of contacts in a DPDT relay (6).
NOTE: The coil of this relay will only be actiĆ
vated when the hold timer is set.
2. If the doors are closed the door switch (7)
should also be closed sending power to termiĆ
nal #3 of the mode selector switch (1). The
mode selector switch should already be made
between terminals #3 and N completing the
circuit to the convection fan motor (8).
NOTE: This motor has a built in centrifugal
switch (11) that closes when the motor
reaches full speed. If found faulty do
not bypass, the whole motor should be
replaced.
3. On a call for heat from the cook temperature
control system a circuit is completed between
terminals #6 and #7 of the temperature conĆ
trol board (3).
NOTE: The temperature control system conĆ
sists of the temperature probe (9), the
temperature control board (3) and the
solid state potentiometer (10)
Power is sent out of terminal #7 to the N.C. terĆ
minal of the DPDT relay (6). This relay should
be made between the N.C. terminal and the
common terminal sending power to one side
of the centrifugal switch (11). If the convection
fan motor (8) is at full speed the centrifugal
switch (11) closes sending power to the cook
light (12) and one side of the element contactor
(13). When the contactor closes the heating
elements (14) power up.
4. When the cook timer (2) is set for a time a cirĆ
cuit is made between terminals #1 and #2
powering up the timer motor (15). At the expiĆ
ration of the set time the switch in the cook timĆ
er (15) toggles from 1-2 to 1-4 powering up
the buzzer (16).
NOTE: Put the timer in the home position to siĆ
lence the buzzer.
5.The 50 watt lamps (21) only receive power when
the light switch (22) is activated. These lamps
are 115 volt and are wired in series parallel.
Cook and Hold Operation
1. Turn the mode selector switch (1) to the cook
and hold position. Power goes to terminal #1
of the cook and hold timer (17). When the cook
and hold timer is set power goes to terminal #6
of the hold temperature controller (4), the coil
of the DPDT relay (6) and the cook and hold
light (18). When the DPDT relay powers up the
switches in the relay toggle from the N.C. to the
N.O. position.
2. On a call for heat from the hold temperature
control system, a circuit is completed beween
terminals #6 and #7 of the hold temperature
control board (4).
2-5
OPERATION
NOTE: The hold temperature control system
consists of the temperature probe (19),
the hold temperature control board (4)
and the solid state potentiometer (20).
Power goes to the N.O. terminals of the DPDT
relay (6). Circuits should be made between the
N.O. and common terminals of the DPDT relay
(6) allowing power to run to the convection fan
motor (8) and one side of the centrifugal switch
(11). If the convection fan motor (8) is at full
speed the centrifugal switch (11) closes sending
power to the cook light (12) and one side of the
element contactor (13). When the contactor
closes the heating elements (14) power up.
NOTE: In cook and hold mode only, the conĆ
vection fan cycles on and off with the
hold thermostat system.
3.The 50 watt lamps (21) only receive power when
the light switch (22) is activated. These lamps
are 115 volt and are wired in series parallel.
NOTE: The potentiometer and probes for cook
and cook & hold are identical. The cook
and cook & hold temperature boards are
NOT interchangeable.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 3.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
2-6
MARK V
14
21
7
20
1
12
13
19
8
10
11
22
6
9
3
4
15
5
16
2
18
6
FIGURE 3
2-7
17
1
SOLID STATE DIGITAL - 30070 REV B
OPERATION
Component Reference
NOTE: Refer to FIGURE 4 page 2-9 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. DOOR SWITCH
3. TIME AND TEMPERATURE CONTROLLER
4. AXIAL FAN
5. CENTRIFUGAL SWITCH
6. CONVECTION FAN MOTOR
7. HOT AIR ELEMENT CONTACTOR
8. HEATING ELEMENTS
9. TRANSFORMER
10. 50 WATT LAMPS
11. LIGHT SWITCH
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to one terminal of the
door switch (2), terminal J8 of the temperature
controller (3), and the axial fan (4). The main
blower fan starts. If a temperature is proĆ
grammed into the controller, the power goes
from J9 to the centrifugal switch (5) in the conĆ
vection fan motor (6).
2. If the doors are closed, the door switch (2)
should also be closed, sending power to the
common terminal of the time and temperature
controller (3). The relay on this controller
should be closed since a temperature has
been programmed into the controller. A circuit
is made between common and N.O. sending
power to, and starting the convection fan moĆ
tor (6).
NOTE: The relay in the time and temperature
controller is not field repairable. If
diagnosed as defective, the entire
board must be replaced.
3. When the convection fan motor (6) reaches full
speed the centrifugal switch (5) closes sendĆ
ing power to the coil of the hot air element conĆ
tactor (7). When the contactor closes power is
sent to the heating elements (8).
4.The 50 watt lamps (10) only receive power when
the light switch (11) is activated. These lamps
are 115 volt and are wired in series parallel.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 4.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
2-8
MARK V
8
8
8
8
3
8
9
9
8
7
5
10
11
6
2
1
4
FIGURE 4
2-9
CE APPROVED SOLID STATE DIGITAL - 33345 REV C
OPERATION
Component Reference
NOTE: Refer to FIGURE 5 page 2-11 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. DOOR SWITCH
3. TIME AND TEMPERATURE CONTROLLER
4. AXIAL FAN
5. CENTRIFUGAL SWITCH
6. CONVECTION FAN MOTOR
7. HIGH LIMIT SWITCH
8. HOT AIR ELEMENT CONTACTOR
9. HEATING ELEMENTS
10. 50 WATT LAMPS
11. LIGHT SWITCH
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to one terminal of the
door switch (2), terminal J8 of the temperature
controller (3), and the axial fan (4). The main
blower fan starts. If a temperature is proĆ
grammed into the controller, the power goes
from J9 to the centrifugal switch (5) in the conĆ
vection fan motor (6).
4.The 50 watt lamps (10) only receive power when
the light switch (11) is activated.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
2. If the doors are closed, the door switch (2)
should also be closed, sending power to the
common terminal of the time and temperature
controller (3). The relay on this controller should
be closed since a temperature has been proĆ
grammed into the controller. A circuit is made
between common and N.O. sending power to,
and starting the convection fan motor (6).
NOTE: The relay in the time and temperature
controller is not field repairable. If
diagnosed as defective, the entire
board must be replaced.
3. When the convection fan motor (6) reaches full
speed the centrifugal switch (5) closes sending
power to the high limit (7). If the high limit is
closed, power goes to the coil of the hot air eleĆ
ment contactor (8). When the contactor closes
power is sent to the heating elements (9).
2-10
MARK V
8
9
7
3
6
5
10
4
11
1
2
FIGURE 5
2-11
FAN DELAY WITH PULSE PLUS - 18466 REV D
OPERATION
Component Reference
NOTE: Refer to FIGURE 6 page 2-13 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOLING FAN
3. TEMPERATURE CONTROLLER
4. 10 MINUTE FAN DELAY TIMER
5. 30 MINUTE COOK TIMER
6. DOOR SWITCH
7. SPDT BLOWER SWITCH
8. CONVECTION FAN MOTOR
9. TEMPERATURE PROBE
10. POTENTIOMETER
11. HOT AIR ELEMENT CONTACTOR
12. COOK LIGHT
13. HOT AIR ELEMENTS
14. REPEAT SHOT PULSE TIMER
15. TPDT RELAY
16. FAN ON LIGHT
17. FAN OFF LIGHT
18. 50 WATT LAMPS
19. LIGHT SWITCH
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to the cooling fan (2), terĆ
minal #8 of the temperature controller (3), and
terminal #1 of the ten minute fan delay timer (4).
2. If the ten minute fan delay timer is in the timed
out position a switch is made between terminals
#1 and #4 sending power to terminal #1 of the
thirty minute cook timer (5). Power is also sent
to one side of the door switch (6). If the doors are
closed the door switch should also be closed
sending power to terminal #6 of the temperature
control board (3) and the common terminal of a
SPDT blower switch (7). The speed of the conĆ
vection fan motor (8) is dependant on the posiĆ
tion of the SPDT blower switch.
temperature control board (3) and the
solid state potentiometer (10)
Power is sent out of terminal #7 to one coil of
the hot air element contactor (11) and the cook
light (12). When the contactor is energized the
hot air element (13) powers up.
4. To enable the pulse plus feature, the ten minĆ
ute fan delay timer (4) must be set to a time. A
switch is then made between terminals #1 and
#2 sending power to terminal #2 of a repeat
shot pulse timer (14).
NOTE: By setting the ten minute fan delay timer
(4) power is interrupted to the thirty minĆ
ute cook timer (5) making it inoperative.
The repeat shot pulse timer cycles a TPDT relay
(15) interrupting the circuit to the convection fan
motor (8). The convection fan motor cycles on
and off for approximately thirty second intervals
for the duration of the time set on the ten minute
fan delay timer (4). The fan on light (16) illumiĆ
nates whenever the TPDT relay closes. The fan
off light (17) illuminates whenever the ten minute
fan delay timer is set for a time.
5.The 50 watt lamps (18) only receive power when
the light switch (19) is activated. These lamps
are 115 volt and are wired in series parallel.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 6.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
3. On a call for heat from the cook temperature
control system a circuit is completed between
terminals #6 and #7 of the temperature conĆ
trol board (3).
NOTE: The temperature control system conĆ
sists of the temperature probe (9), the
2-12
MARK V
13
12
18
11
13
19
2
17
8
7
1
10
3
9
14
16
15
5
4
6
FIGURE 6
2-13
HUMIDAIRE - 1846 REV M
OPERATION
Component Reference
NOTE: Refer to FIGURE 7 page 2-16 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOK TIMER
3. DOOR SWITCH
4. TEMPERATURE CONTROL BOARD
5. SPDT BLOWER SWITCH
6. SINGLE SHOT TIMER
7. SPST THERMAL SWITCH
8. TEMPERATURE PROBE
9. POTENTIOMETER
10. COOK LIGHT
11. ELEMENT CONTACTOR
12. HEATING ELEMENTS
13. 50 WATT LAMPS
14. LIGHT SWITCH
15. TIMER MOTOR
16. BUZZER
17. STEAM DURATION POTENTIOMETER
18. STEAM CYCLE START SWITCH
19. WATER SOLENOID VALVE
20. STEAM LIGHT
21. CONVECTION FAN
22. AXIAL COOLING FAN
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to terminal #1 of the
cook timer (2), one side of the door switch (3),
terminal #8 of the temperature control board
(4) and the axial cooling fan (22)
2. If the doors are closed the door switch (3) should
also be closed sending power to terminal #6 of
the temperature control board (4), the SPDT blowĆ
er switch (5), terminal #1 of a single shot timer (6),
and one side of a SPST thermal switch (7).
3.On a call for heat from the temperature control
circuit a circuit is completed between terminals
#6 and #7 of the temperature control board (4).
NOTE: The temperature control circuit conĆ
sists of the temperature probe (8), the
temperature control board (4) and the
solid state potentiometer (9).
Power is sent out of terminal #7 sending power
to the cook light (10) and one side of the eleĆ
ment contactor (11). When the contactor
closes the heating elements (12) power up.
4.The 50 watt lamps (13) only receive power when
the light switch (14) is activated. These lamps
are 115 volt and are wired in series parallel.
5. When the cook timer (2) is set for a time a cirĆ
cuit is made between terminals #1 and #2
powering up the timer motor (15). At the expiĆ
ration of the set time the switch in the cook timĆ
er (2) toggles from 1-2 to 1-4 powering up
the buzzer (16).
NOTE: Put the timer in the home position to siĆ
lence the buzzer.
6.If the oven is above 212_F (100_C) as sensed by
the thermal switch (7) the switch closes sending
power to the steam cycle start switch (18).
NOTE: The thermal switch is located in the
rear of the oven. The face of the thermal
switch is in contact with the oven liner.
The switch toggles closed if the oven
temperature exceeds 212_F (100_C).
NOTE: The steam cycle start switch is a moĆ
mentary switch located on the front
control panel.
When the steam duration potentiometer (17) is
set and the steam cycle start switch (18) is
pressed the single shot timer (6) is activated for
the duration of time on the steam duration poĆ
tentiometer. This allows the water solenoid
valve (19) to open spraying atomized water
onto the blower wheel. The steam light (20) is
illuminated during the humidaire cycle.
7. The convection fan (21) receives power from
the SPDT blower switch (5). This switch deterĆ
mines hi and lo speed.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 7.
2-14
MARK V
NOTE: The resistive values for the probes used in
this oven have descending temperature coĆ
efficients. As the temperature increases the
resistive values decrease.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
2-15
OPERATION
13
13
12
21
12
1846M
10
22
9
11
15
16
19
20
14
7
5
8
1
2
3
17
18
6
FIGURE 7
2-16
MARK V
INTELLIHOLD AND INTELLIPLUS - 22027 REV A
Component Reference
NOTE: Refer to FIGURE 8 page 2-18 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. DOOR SWITCH
3. AXIAL FAN
4. TEMPERATURE CONTROL BOARD
5. CONVECTION FAN
6. OVEN READY LIGHT
7. HEATING ELEMENT CONTACTOR
8. HEATING ELEMENTS
9. 50 WATT LAMPS
10. LIGHT SWITCH
11. PROBE
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to one side of the door
switch (2), the axial fan (3) and to either E1 or
E2 of the temperature control board (4).
NOTE: This control is multiĆvoltage. It may be
used on 240, 208 and 120. FIGURE 8
shows connections to E1 and E2 indiĆ
cating a 240 or 208 volt application.
changed due to the difference in amp
draw. Reference detail inset in FIGURE 8.
NOTE: The resistive values for the probe (11) used
in this oven have ascending temperature
coefficients. As the temperature increases
the resistive values also increase.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
2. If the doors are closed the door switch (2)
should also be closed sending power to termiĆ
nal E10 of K2, E8 of K3 and E6 of K1. If a time
and temperature is programmed into the conĆ
troller either K2 or K3 close sending power to
the convection fan (5).
NOTE: K2 is for high fan, K3 is for low fan.
3. On a call for heat the contacts in K1 close,
sending power to the oven ready light (6) and
one side of the heating element contactor (7).
When the contactor closes the heating eleĆ
ments (8) power up.
4. The 50 watt lamps (9) only receive power when
the light switch (10) is activated. These lamps
are 115 volt and are wired in series parallel.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
2-17
OPERATION
8
7
9
6
4
5
8
3
10
2
1
FIGURE 8
2-18
MARK V
INTELLITOUCH - 19361 REV A
Component Reference
NOTE: Refer to FIGURE 9 page 2-20 for compoĆ
nent locations.
1. MODE SELECTOR SWITCH
2. COOLING FAN
3. DOOR SWITCH
4. STEP DOWN TRANSFORMER
5. INTELLITOUCH CONTROL
6. CONVECTION FAN
7. TEMPERATURE PROBE
8. CENTRIFUGAL SWITCH
9. ELEMENT CONTACTOR
10. HOT AIR ELEMENTS
11. 50 WATT LAMPS
12. LIGHT SWITCH
Operation
1. Turn the mode selector switch (1) to the cook
position. Power goes to the cooling fan (2), one
side of the door switch (3) and terminal #5 of
a 208/24 volt step down transformer (4). 24
volts are applied to terminal #T2 of the intelliĆ
touch controller (5).
allows the convection fan motor to operate
even when the doors are open.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 9.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
NOTE: To calibrate the oven operation perforĆ
mance characteristics see page 3-8 of the
Calibration and Adjustment section.
2. If the doors are closed the door switch should
also be closed sending power to the convecĆ
tion fan (6).
3. On a call for heat, as sensed by the temperaĆ
ture probe (7), a set of contacts close between
terminals T2 and T5 sending 24 volts to one
side of the centrifugal switch (8).
NOTE: The centrifugal switch is a nonĆrepairĆ
able item. It is located in the convecĆ
tion fan motor. This switch closes when
the convection fan reaches full speed.
It is considered a safety switch and
should not be bypassed.
If the centrifugal switch is closed, 24 volts are
applied to the coil of the hot air element contacĆ
tor (9). When the contactor is energized, the
hot air elements (10) power up.
4.The 50 watt lamps (11) only receive power when
the light switch (12) is activated. These lamps
are 115 volt and are wired in series parallel.
NOTE: Turn the mode selector switch to cool
down to bypass the door microswitch. This
2-19
11
OPERATION
2
5
10
12
1
6
4
9
3
8
FIGURE 9
2-20
MARK V
BLODGETT IQ CONTROL - 33078 REV A
Component Reference
NOTE: Refer to FIGURE 10 page 2-22 for compoĆ
nent locations.
1. POWER SWITCH
2. STEP DOWN TRANSFORMER
3. RELAY BOARD
4. AXIAL FAN
5. COMPUTER
6. TEMPERATURE PROBE
7. ELEMENT CONTACTOR
8. HEATING ELEMENTS
9. CONVECTION FAN MOTOR
10. DOOR SWITCH
Operation
1. Toggle the power switch (1) to the on position.
Power goes to the primary side of a 208/24 volt
step down transformer (2), terminal #2 of K1 of
the relay board (3), terminal #4 of K2 of the
relay board, terminal #7 of K3 of the relay
board and the axial fan (4).
2. On a call for heat from the computer (5) as
sensed by the temperature probe (6), the coil
of K1 powers up closing the contacts between
terminals #2 and #1 of K1 on the relay board
(3). The coil of the element contacator (7) powĆ
ers up. When the contactor closes the heating
elements (8) power up.
NOTE: Reference page 4-2 of the TroubleshootĆ
ing section for the reistive values of the
heating elements. The reading should be
taken in a cold state.
3. The speed of the convection fan motor (9) is
determined by the program in the computer
(5). The computer either closes K2 for high
speed or K3 for low speed.
4. When the doors are closed the door switch
(10) is activated. The computer closes relays
K1, K2 and K3. If the doors are open or the
switch is broken these relays drop out and the
LED displays door.
NOTE: This oven may be converted from single to
three phase, however, contactors must be
changed due to the difference in amp
draw. Reference detail inset in FIGURE 10.
NOTE: The resistive values for the probes used in
this oven have descending temperature
coefficients. As the temperature increases
the resistive values decrease
2-21
OPERATION
8
8
8
8
8
8
9
7
6
10
4
1
2
3
FIGURE 10
2-22
MARK V
This page intentionally left blank.
2-23
CHAPTER 3
CALIBRATION AND
ADJUSTMENT
MARK V
DOORS
The Mark V ovens feature double side mounted
doors which operate simultaneously by means of
a chain and turnbuckle linkage assembly. Should
field adjustment be necessary, the two turnbuckles
are located immediately behind the combustion
compartment cover.
For units manufactured prior to August 1984.
1. Adjust one turnbuckle, then the other until the
doors are properly synchronized.
NOTE: The doors are properly adjusted if the
right door is fully closed when the left
door (the door with the handle) has
1/2"Ć1" of travel remaining.
Both turnbuckles must be adjusted to prevent
strain on the door operating mechanism.
2. Tighten the turnbuckle lock nuts.
Turnbuckle
(not shown)
For units manufactured after August 1984
Be sure the doors are in line with each other when
viewed from the top and front. If the doors are misaĆ
ligned adjust as follows:
1. Remove the bottom trim.
2. Loosen the five (5) bolts in the UĆshaped lower
door hinge and sprocket assembly.
3. Slide the assembly until the doors are aligned.
4. Tighten the bolts.
5. Replace the bottom trim.
Door Hinge
Sprocket
Assembly
Turnbuckle
Turnbuckle
FIGURE 1
To adjust the ball plunger catch:
1. Insert a spanner key in the notches on both
sides of the ball plunger. Loosen the lock nut
with a wrench.
2. Adjust the ball plunger by turning left or right
with the spanner key until the plunger engages
in the striker plate on the door.
3. With the spanner key still inserted in the ball
plunger notches, tighten the lock nut.
FIGURE 2
To adjust the doors for proper operation, open the
doors until the right hand door back flange is even
with the front line of the oven as viewed from above.
The left hand door should be positioned so the
door pressure lock touches the right hand door. If
the doors need adjustment proceed as follows:
1. Loosen the chain drive.
2. Adjust for proper location.
3. Tighten the chain drive.
Front of Oven
Left
Door
Right Door
Pressure Lock
FIGURE 3
3-1
CALIBRATION AND ADJUSTMENT
DOOR BLOWER SWITCH
The door activated blower switch should be adĆ
justed so the doors are about 1Ć1/2" (4 cm) from
the liner when the switch shuts the blower off. If
field adjustment is necessary, the switch can be
reached by removing the combustion compartĆ
ment cover.
1. Open the right hand door until it is approxiĆ
mately 2" (5 cm) from the liner.
2. Place the arm of the cam assembly, located on
the door sprocket, against the push button.
3. Tighten the set screw.
When the doors are fully closed, the cam arm deĆ
presses the push button enough to allow blower
operation. An audible click will determine if the
switches are operating correctly.
The switch may be moved forward or backward in
the mounting bracket as necessary for alignment.
Door Arm
Sprockets
Door
Chain
Door Switch
Cam Assembly
Hinge Pin
Micro
Switch
THERMOSTAT
BULB AND CAPILLARY THERMOSTAT
For units manufactured prior to August 1984
1. Turn the mode selector/power switch to COOK
ONLY.
2. Toggle the blower switch to ON.
3. Toggle the cool down switch to MANUAL.
4. Place a pyrometer thermocouple at the center
of the thermostat bulb or reliable mercury therĆ
mometer on the middle shelf 6" from the front
edge and in the center of the shelf.
5. Turn the thermostat dial to 350_F (177_C)..
6. When the red indicator light on the control panĆ
el goes out, check the thermometer or pyromĆ
eter to determine oven temperature.
If this reading is within 10_F (6_C) of the therĆ
mostat setting, do not change the thermostat.
If this reading differs more than 10_F (6_C)
from the thermostat setting recalibrate the
thermostat.
For units manufactured after August 1984.
1. Turn the selector switch to COOK.
2. Place a pyrometer thermocouple at the center
of the thermostat bulb or reliable mercury therĆ
mometer on the middle shelf 6" (15 cm) from
the front edge and in the center of the shelf.
3. Turn the thermostat dial to 350_F (177_C). Let
the oven heat for at least 1/2 hour.
FIGURE 4
4. When the red indicator light on the control panĆ
el goes out, check the thermometer or pyromĆ
eter to determine oven temperature. If this
reading is within 10_F (6_C) of the thermostat
setting, do not change the thermostat. If this
reading differs more than 10_F (6_C) from the
thermostat setting recalibrate the thermostat
as follows. See FIGURE 6 page 3-3.
A.) Loosen the set screws in the thermostat
knob. Pull the knob forward.
B.) With a screwdriver, turn the calibration
screw in the center of the thermostat stem
either clockwise to lower the temperature
or counterĆclockwise to raise the temperaĆ
ture.
3-2
MARK V
Thermocouple
Bulb Clip
Fluid Filled
Capillary
Thermostat
Pyrometer
Lead
FIGURE 5
For units manufactured prior to December 1987.
1. Loosen the set screws in the thermostat knob.
Pull the knob forward.
2. With a screwdriver, turn the calibration screw
in the center of the thermostat stem either
clockwise to lower the temperature or counterĆ
clockwise to raise the temperature.
Calibration
Screw
NOTE: Do not allow the main stem of the therĆ
mostat to turn when adjusting the calĆ
ibration screw.
3. Open the doors.
4. Turn the selector switch to COOL DOWN. The
blower will continue to operate. Let the temperĆ
ature of the oven decrease 100Ć150_F
(56Ć83_C).
5. Turn the selector switch to COOK.
6. Repeat the steps above until the oven temperĆ
ature is within 10_F (6_C) of the thermostat setĆ
ting.
FIGURE 6
3-3
SOLID STATE MANUAL
1. Place a pyrometer in the center of the oven.
2. Turn the mode selector switch to cook.
3. Turn the thermostat to 350_F (177_ C).
4. When the red indicator light goes out, check
the pyrometer to determine oven temperature.
5. If this reading is within 10_ (6_C) of the thermoĆ
stat setting no adjustment is needed.
If the reading is greater than 10_ (6_C) adjust
as follows:
A.) Locate the trim pot on the solid state temĆ
perature board.
CALIBRATION AND ADJUSTMENT
B.) Turn the adjustment screw to raise or lower
the setting.
LIGHT OFF
OVEN READY
THERMOSTAT
TIMER
3-4
FIGURE 7
MARK V
SELECTOR SWITCH CALIBRATION
1. Place a pyrometer in the center of the oven.
2. Turn the mode selector switch to cook.
3. Set 8 position selector switch to one of the
eight positions.
NOTE: The 8 individual positions are each set
for a temperature of the customer's
choosing. For example, if position 1 is
set for 350_F (177_C) the red indicator
light should go out when it gets to withĆ
in 10 degrees of setpoint.
4. If the light goes out within 10 degrees, no adĆ
justment is required. If the light does not go out
within 10 degrees of setpoint calibrate the
switch as follows:
A.) Locate the potentiometer on the 8 position
selector switch labeled R1.
NOTE: There are 8 trim pots on this device.
They are labeled R1, R2, R3, etc.
B.) Turn the brass screw on top of the potenĆ
tiometer clockwise to increase the temperaĆ
ture. Turn the brass screw on top of the poĆ
tentiometer counterĆclockwise to decrease
the temperature.
5. Repeat steps 3-4 for all 8 positions.
NOTE: It is possible for all 8 positions to be out
of calibration but highly unlikely.
FIGURE 8
3-5
SOLID STATE DIGITAL CONTROL
CALIBRATION AND ADJUSTMENT
To Initiate Programming
1. Set the time to 1 minute.
2. Set the temperature to 151_F (66_C).
To Access Second Level Programming
1. Press and hold the temperature key and the
start/stop key simultaneously.
2. The control beeps and displays the software
version for a few seconds.
3. The control then displays 2NdL. The control
has entered the second level program.
To Change the Temperature Offset
1. Press the temperature key.
2. The control displays OFFS or offset for a few
seconds. It then displays the current offset
which should be 0_F.
3. Rotate the dial to enter a 50_F (28_C) offset.
Use this to calibrate the oven if necessary.
To Set the Display Scales
1. Press the temperature key.
2. The control displays the current setting from
the following menu. See FIGURE 9. This menu
controls 3 separate parameters:
A.) First Digit - the desired time display (ie
hrs/min or min/sec)
DISPLAY SCALE EXAMPLES
DIGITS
ST
1
H = Hrs/Min Display (Factory Setting)
_Ă = Min/Sec Display
ND
2
E = Electric Oven
_ = Gas Oven
RD
3
_C or _F
Temperature Display
TH
4
B.) Second Digit - Electric or Gas oven
C.) Third and Fourth Digit - the desired temĆ
perature scale (ie _F or _C)
3. To adjust the setting turn the dial 1 click at a
time.
NOTE: If the control is set for minutes and seconds
the first digit will be blank. If the control is
set for a gas oven the second digit will be
blank.
FIGURE 9
To Return to Normal Operating Mode
1. Press the temperature key.
2. The control goes through self check then disĆ
plays the set temperature 151_F (66_C).
3. The oven can now be controlled as normal.
3-6
MARK V
INTELLIHOLD AND INTELLIPLUS CONTROLS
NOTE: For error code display information see
page 4-3 of the Troubleshooting section.
Temperature Calibration
1. Turn the temperature control knob until the
temperature in the display reads X10 (any
number followed by 10).
2. Turn the time control knob until the time in the
display is 00:00.
3. Press and hold the start/timer key. The display
reads UPO.
4. Place a pyrometer in the center of the oven to
measure the actual oven temperature.
NOTE: During operation, the temperature
control is based on the measured temĆ
perature and the temperature offset
which is programmed into the control.
If the temperature measured in the
center of the oven is below the oven
setpoint a positive offset is needed. If
the temperature measured in the cenĆ
ter of the oven is above the oven setĆ
point a negative offset is needed.
5. Turn the temperature control knob to set the
offset, either positive or negative.
6. Press the act temp key to store the new offset
and exit temperature calibration.
Temperature Display Scales
1. Turn the temperature control knob until the
temperature in the display reads X20 (any
number followed by 20).
2. Turn the time control knob until the time in the
display is 00:00.
3. Press and hold the start/timer key. The display
reads either CCC or FFF.
4. Press and hold the start/timer key to toggle
from _C to _F.
5. Press the act temp key to store the new scale
and exit temperature display.
Time Display Scales
1. Turn the temperature control knob until the
temperature in the display reads X30 (any
number followed by 30).
2. Turn the time control knob until the time in the
display is 00:00.
3. Press and hold the start/timer key. The display
reads either HRS or MIN.
4. Press and hold the start/timer key to toggle
from hours to minutes.
5. Press the act temp key to store the time scale
and exit time display.
3-7
INTELLITOUCH CONTROL
CALIBRATION AND ADJUSTMENT
NOTE: For error code display information see
page 4-3 of the Troubleshooting section.
To access 2nd level programming
1. Turn the oven off.
2. Locate the 3 pin header on the bottom right
side of the control. Move the jumper from the
middle and bottom pins to the middle and top
pins exposing the bottom pin.
3. Turn the oven on. The program LED (1) lights.
Programming the 2nd level parameters
1. The #1 LED illuminates.
NOTE: The LED's (3) are located next to the
product and load keys. The LED identiĆ
fication numbers (2) are located to the
left of the product and load keys. See
FIGURE 10.
INTELLITOUCH
HEATPROGRAM
DISPLAY
2
1
PROD
3
2
PROD
3
PROD
4
PROD
5
PROD
6
PROD
7
PROD
READY
8
1
ENTER
2
TEMP
3
CNCL
4
5
6
7
R
TEMP
R
TIME
LOAD
1
9
LOAD
2
0
LOAD
3
LOAD
4
LOAD
5
1
2
3
NOTE: Use product keys 1Ć7 for numerals 1Ć7.
Use load keys 1Ć3 for numerals 8,9 and
0 respectively.
3. Press the enter key to save the parameter setĆ
ting.
4. The #2 LED illuminates
5. Repeat steps 1Ć3 for each parameter. When
the final parameter setting is entered and
saved the #1 LED illuminates.
LED(s)ParameterSetting
1Offset0
2Hrs/Min timer0F
1,2Fahrenheit (0=_F, <1=_C)0F
3Proportional0F
1,3Integration1F
2,3Dead band3F
1,2,3Cycle time12F
4Minimum on time3F
1,4Hi temp alarm550F
2,4Ready temp differential15F
1,2,4Minimum setpoint150F
3,4Maximum setpoint cook500F
1,3,4Minimum setpoint hold0F
2,3,4Maximum setpoint hold0F
1,2,3,4Fan 2 speed0F
5Fan rev.0F
TABLE 1
To exit the 2nd level programming
FIGURE 10
2. Use the product and load keys to enter numeriĆ
cal data. See TABLE 1 for correct parameter
settings.
1. Turn the oven off.
2. Move the jumper from the middle and top pins
to the middle and bottom pins exposing the
top pin.
2. The control runs selfĆdiagnostics on each LED
individually. When all of the LED's light togethĆ
er press the CLEAR key.
3. The display flashes EXIT then ACCESS.
To check the software configuration
1. Press CLEAR 1, 2, 3 ENTER.
2. The display lists the software configuration inĆ
formation.
3. The display flashes EXIT then ACCESS.
OVEN CALIBRATION
1. Press CLEAR, TEMP, TEMP, TEMP, ENTER.
Temperature display scale
2. The display flashes _ F/_C then MODE-?
3. Press any key to toggle the scale from _F to _C.
4. Press the PROG/ENTER key to lock in new
scale.
5. The display flashes T'_F ( or T'_C).
Temperature offset
1. Once the temperature scale has been proĆ
grammed, the display flashes either POS *
OFFSET or NEG * OFFSET
NOTE: POS OFFSET is displayed if a value has
been programmed in for a positive offĆ
set. NEG OFFSET is displayed if a valĆ
ue has been programmed for a negaĆ
tive offset. The only time both will be
displayed is if a value of 0 has been enĆ
tered for both.
2. Enter a value for the desired offset. The display
flashes DISPLAY * INTEG?.
3. Press the PROG/ENTER key. The default value
of 30 will be displayed.
4. Press the PROG/ENTER key. The display will
flash TĆCTRL * INTEG?.
5. Press the PROG/ENTER key. The default value
of 10 will be displayed.
6. Press the PROG/ENTER key.
Ready Band
1. The display flashes READY, BAND and POS.
2. Use the numeric keys to enter a value between
1 and 25. Press the PROG/ENTER key.
3. The display flashes READY, BAND and NEG.
4. Use the numeric keys to enter a value between
1 and 25. Press the PROG/ENTER key.
To exit oven calibration
1. The display flashes ACCESS, DONE and EXIT.
2. Press CLEAR, CLEAR, CLEAR.
3. The display flashes REBOOT and SELECT.
3-9
BLODGETT IQ CONTROL
CALIBRATION AND ADJUSTMENT
NOTE: For error code display information see
page 4-3 of the Troubleshooting section.
2ND LEVEL PROGRAMMING
Entering the programming mode
1. Press the prog key. The top display reads
CodE.
2. Use the product keys to enter the programĆ
ming access code: 4 5 1 2. Press the enter key.
The top display reads SYS.
Programming hold
1. Press the scan key. The top display reads
Hold. Press the toggle/clear key to toggle beĆ
tween YES and no. Press the scan key.
If no is chosen:
A.) The controller advances to programming
the setback mode.
If yes is chosen:
A.) The top display reads AUTO. Press the
toggle/clear key to toggle between YES
and no. Press the scan key to enter the deĆ
sired hold mode.
B.) The top display reads HOLD. The bottom
display flashes the current hold time. Use
the product keys to enter the desired hold
time. Press the scan key to enter the new
hold time.
C.) The top display reads HOLD. The bottom
display flashes the current hold temperaĆ
ture. Use the product keys to enter the deĆ
sired hold time. Press the scan key to enter
the new hold temperature.
D.) The top display reads FAn. The bottom disĆ
play gives the current fan mode. To
change the fan mode press the toggle/
clear key. The bottom display toggles beĆ
tween Hi and Lo. Press the scan key to enĆ
ter the new fan mode and continue with
programming the setback mode.
Programming the setback mode
1. The top display reads SEtb. The bottom disĆ
play gives the setback mode. To change the
setback press the toggle/clear key. The botĆ
tom display toggles between YES and no.
Press the scan key.
If no is chosen:
A.) The controller advances to programming
the temperature mode.
If yes is chosen:
A.) The bottom display gives the current setĆ
back time. Use the product keys to the enĆ
ter the desired setback time. Press the
scan key to enter the new setback time.
B.) The bottom display gives the current setĆ
back temperature. Use the product keys
to the enter the desired setback temperaĆ
ture. Press the scan key to enter the new
setback and continue with programming
the temperature mode.
Programming the temperature mode (_F or _C)
1. The top display reads dEg. The bottom display
gives the units. To change the units press the
toggle/clear key. The bottom display toggles
between F and C.
2. Press the scan key to enter the new temperaĆ
ture units and continue programming the oven
size.
Programming the oven size
1. The top display reads APPL. The bottom disĆ
play reads either FULL or HALF. Press the
toggle/clear key until the bottom display reads
FULL for the Mark V.
2. Press the scan key to enter the oven size and
continue with exiting the programming mode.
Exiting the programming mode
1. The top display reads SYS. Press the prog key.
The control returns to the operating standby
mode.
3-10
MARK V
PROGRAMMING THE OFFSET
Entering the offset programming mode
1. Press the prog key. The top display reads
CodE.
2. Use the product keys to enter the offset proĆ
gramming access code: 4 5 2 3. Press the enĆ
ter key. The top display reads oFF. The bottom
display reads SEt.
Programming the temperature offset
1. Press the scan key. The top display reads
oFST. The bottom display reads either xxF or
-xxF.
2. Press the toggle/clear key to toggle between
positive and negative. Use the product keys to
the enter the desired temperature offset.
3. Press the scan key to enter the new temperaĆ
ture offset.
Exiting the offset programming mode
1. Press the prog key. The control returns to the
operating standby mode.
3-11
CALIBRATION AND ADJUSTMENT
BLODGETT IQ2T CONTROL FACTORY LEVEL PROGRAMMING
Entering the programming mode
1. Press the program key. The top display reads
CodE.
2. Use the product keys to enter the factory proĆ
gramming accss code: 4 5 2 3. Press the enter
key. The top dislay reads Fact.
Programming the oven configuration
1. Press the SCAN KEY. The display reads Appl.
2. Press the TOGGLE/CLEAR KEY to toggle beĆ
tween electric oven and gas oven. Set the
choice for the oven type. Press the SCAN KEY
to enter the choice.
3. Press the TOGGLE/CLEAR KEY to toggle beĆ
tween half sized or full sized oven. Set the
choice for the oven type. Press the SCAN KEY
to enter the choice.
NOTE: Mark V and DFGĆ100 are full sized
ovens. CTB and DFGĆ50 are half sized
ovens.
Programming the temperature offset
1. The top display reads oFF. The bottom display
reads SEt.
2.Press the SCAN KEY. The top display reads oFST.
The bottom display reads either xxF or -xxF.
3. Press the TOGGLE/CLEAR KEY to toggle beĆ
tween positive and negative. Use the product
keys to the enter the desired temperature offset.
4. Press the SCAN KEY to enter the new temperaĆ
ture offset.
Enabling/Disabling the fan error detection circuit
1. The top display reads FanC. The bottom disĆ
play reads YES or NO.
2. Press the TOGGLE/CLEAR KEY to toggle beĆ
tween choices.
3. Press scan to move to next operating parameĆ
ter.
Programming fan speed option
1. The top display reads FanS. The bottom disĆ
play reads 1 or 2.
2. Press the TOGGLE/CLEAR KEY to toggle beĆ
tween choices: 1 for a single speed motor or 2
for a two speed motor.
3. Press SCAN to move to the next operating paĆ
rameter.
Programming the maximum temperature setpoint
1. The top display reads tELt (temperature limit)
and the bottom display reads either 500 or 550.
2. Press the TOGGLE/CLEAR key to toggle beĆ
tween choices 500_F or 550_F maximum temĆ
perature setting.
3. Press scan to enter the maximum setpoint
temperature.
NOTE: Use 500_F for the DFGĆ100, DFGĆ200,
Mark V, CTB and DFGĆ50. Use 550_F
for the DFGĆ100 XCEL and Mark V
XCEL.
Exiting the factory programming mode
1. The top display reads Fact. Press the PROG
KEY. The control returns to the operating
mode.
3-12
MARK V
IQ VVCĆ208 CONTROL
COMPONENT DESCRIPTION
1. Indicator
Lights
2. ProgramĆ
ming Buttons
D Light up when product
key is activated.
D Used to access programĆ
ming mode and change
parameters.
3. VFD (VacuĆ
um Fluorescent
Display)
D Bright blue for easy viewĆ
ing. Displays
programming and cook
cycle information.
4. SlideĆIn
Menu Strips
D Menu items are printed
directly on easyĆtoĆ
change menu strip.
5. Product
Buttons
D Used to activate cook
cycles and for certain
programming functions.
6. SCAN keyD Used for recipe review
during idle.
D Used to review time
remaining during multiple
cooks (press & hold)
7. COOL
DOWN key
D Used to enter or exit cool
down mode.
8. TEMP/
TOGGLE
CLEAR key
D Used to check actual
temperature; also used to
clear value when in
programming mode.
9. HOLD keyD Holds are not used forKFC applications. Used
to toggle between upper
and lower case letters
when programming
libraries.
10. SETBACK
key
11. SCK LINK
logo
D Used to enter or exit
Setback mode.
D Signifies your control is
communicationsĆcapaĆ
ble.
FIGURE 11
3-13
OPERATIONAL TEST PROCEDURE
CALIBRATION AND ADJUSTMENT
1
2
3
4
5
6
RECIPE REVIEW - Quickly see what is proĆ
grammed for each product key.
1. Press the SCAN key.
2. Select any product key previously proĆ
grammedĆLED will be lit above the key.
Plug oven into electrical source
Turn the oven power switch on.
NOTE: AP and Mark V computer is unpowered if off. The XCEL is powered if plugged in.
NOTE: This scrolling can be bypassed by pressing SCAN.
The controller will scroll through the following:
A.) Appliance Type
B.) Software #
C.) Download #
D.) SCK Address
E.) PREHEAT"
The oven will enter PREHEAT" mode and begin to warm up. When the set temperature
(default 325°F) is reached, the Preheat timer will count down from 45 minutes to zero.
When LOAD" is displayed, the oven is ready for use.
Press any illuminated product key.
The cook cycle will count down in the display.
COOL DOWN
1. To enter Cool Down, press the COOL DOWN
key while the oven door is closed. When the
display reads COOL," the door can then be
opened.
3. Press the DOWN arrow key to scroll through
the list.
4. Press SCAN to exit.
VIEW TEMPERATURE SETTING
1. Press the TEMP key 'once' to view Actual TemĆ
perature, or
2. Press the TEMP key 'twice' to view Set TemperĆ
ature.
3. Press the TEMP key 'three' times to view Fan
Speed
4. Press the TEMP key 'four' times to view Fan DiĆ
rection
WARNING!!
THE FAN IS STILL MOVING. DO NOT
REACH INTO THE OVEN. The fan will auĆ
tomatically shut off when the actual temĆ
perature reaches 105°F.
2. To exit Cool Down, press the COOL DOWN key
again. The oven will come back up to set temĆ
perature.
WARNING!!
ALWAYS TURN OFF MAIN POWER BEĆ
FORE REMOVING BAFFLE OR PLACING
HANDS NEAR FAN.
3-14
MARK V
SYSTEM PROGRAMMING (6647)
KEY PRESSDISPLAYACTION
Enter Program mode
1
Enter pass code
2
ENTER CODE
****
D To enter programming mode,
press and hold the P" key for
3 seconds.
D Scroll Down to Programming.
D Press the P" key to lock in
your entry.
D The display will prompt user to
enter a pass code.
D Enter pass code 6 6 4 7.
D Press the P" key when SysĆ
tem" is displayed.
D Press the P" key again to enĆ
ter System Programming.
Confirm or Select
Appliance Type
3
Select Language
4
APPLIANCE TYPE
(ELECTRIC HALF,
ELECTRIC FULL)
HALF = AP
FULL = MARK V
SELECT LANGUAGE
(English, Other)
D Press the LEFT or RIGHT arrow
keys to select from a preĆproĆ
grammed list of appliances.
NOTE: Changing appliance
type clears all current recipe
programs.
D Press the P" key to lock in
your entry
D Press the LEFT or RIGHT arĆ
row key to select language
D Press the P" key to lock in
your entry
NOTE: 'Other' is downloadĆ
able.
3-15
SYSTEM PROGRAMMING (continued)
KEY PRESSDISPLAYACTION
CALIBRATION AND ADJUSTMENT
Set Tone Level
5
Set Temperature Mode
6
Program Setback Time
7
Program Setback
Temperature
8
TONE LEVEL
(None, 1, 2, 3, 4)
TEMPERATURE
F = FAHRENHEIT or
C = CELSIUS
SETBACK TIME
HH:MM
SETBACK TEMP
XXX
D Press the LEFT or RIGHT arĆ
row keys to select a tone level.
At each level the controller will
continuously sound the seĆ
lected tone.
D Press the P" key to lock in
your entry
D Press the LEFT or RIGHT arĆ
row keys to select the method
that all temperatures will be
displayed in.
D Press the P" key to lock in
your entry
D Press the numbered product
keys to select the time in
HH:MM format for activating
Setback mode.
NOTE: 0:00 is default to disĆ
able Setback.
D Press the P" key to lock in
your entry
D Press the numbered product
keys to select the Setback
temperature in the range of
140Ć300°F.
9
10
Set Hold Time
Set Hold Temperature
HOLD TIME
HH:MM
HOLD TEMP
XXX
3-16
D Press the P" key to lock in
your entry
D Type in the length of hold time
required. The value is in the
range of 00:00 to 99:59.
D Press the P" key to advance
to the next stage or parameter.
D Type in the desired Hold temĆ
perature. Hold Temperature
Range is 140Ć210°F
D Press the P" key to advance
to the next stage or parameter.
MARK V
SYSTEM PROGRAMMING (continued)
KEY PRESSDISPLAYACTION
11
12
13
14
Set Hold Done
Set Hold Fan Speed
Set Preheat Time
HOLD DONE
(AUTOMATIC, MANUAL)
HOLD FAN SPEED
(HIGH, LOW)
PREHEAT TIME
MM:SS
EXITExit Program Mode
D Press the LEFT or RIGHT arĆ
row keys to select Hold Done.
D Press the P" key to advance
to the next stage or parameter.
D Press the LEFT or RIGHT arĆ
row keys to select Hold Fan
Speed.
D Press the P" key to advance
to the next stage or parameter.
D Type in the desired Preheat
Time.
D Press the P" key to advance
to the next stage or parameter.
D Press the UP or DOWN arrow
keys to scroll to Exit."
15
D Press the P" key to return to
idle mode.
3-17
CALIBRATION AND ADJUSTMENT
PROBE RESISTANCE VS HEATING ELEMENTS
ElementResistance
208 volt12.3-13.6 W
220 volt13.8-15.2 W
240 volt16.4-18.1 W
440 volt58.0-61.0 W
480 volt65.6-72.6 W
TABLE 2
PROBE RESISTANCE VS TEMPERATURE
Solid State Manual and Digital Controllers
(probe P/N 18588)