Operator
Manual
OV500G1-EE
OV500G2-EE
OV500 ROTATING RACK OVEN
WITH ADVANCED ELECTRONIC
OVEN CONTROL
Model Number: ___________
Serial Number: ___________
Date of Installation: ___________
Baxter Mfg, a Division of ITW FEG, LLC • 19220 State Route 162 East • Orting, WA 98360-9236
Phone: (360) 893-5554 • Fax: (360) 893-1337
www.baxterbakery.com
OV500G1 GAS
OV500G2 GAS
OV500E1 ELECTRIC
OV500E2 ELECTRIC
OV500G1-EE GAS
OV500G2-EE GAS
FORM 36715 Rev. B (February 2016)
IMPORTANT FOR YOUR SAFETY
POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT
THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED FROM THE
LOCAL GAS SUPPLIER.
IMPORTANT
IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN UNITS
AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS
COMPANY OR GAS SUPPLIER FOR SERVICE.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.
IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE
PROPERTY DAMAGE, INJURY OR DEATH. READ THE
INSTALLATION, OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT.
IN THE EVENT OF A POWER FAILURE, DO NOT ATTEMPT TO
OPERATE THIS DEVICE.
KEEP AREA AROUND OVEN CLEAR OF COMBUSTIBLES. DO
NOT OBSTRUCT COMBUSTION AND VENTILATION OPENINGS
ON THE OVEN.
© BAXTER MFG., 2016
– 2 –
MODEL OV500 SINGLE RACK OVEN
– 3 –
TABLE OF CONTENTS
GENERAL ............................................................................................................................................. 5
INSTALLATION ..................................................................................................................................... 5
OPERATION .......................................................................................................................................... 6
OV500 Digital Controls .................................................................................................................... 6
Back-Up Control Operation (optional) ............................................................................................11
Safety Alarm (Standard Feature, No Parameter Setup Required) .................................................11
Pulse or Food Service Steam Mode .............................................................................................. 12
Kosher Operation Mode (Ovens Equipped With Kosher Package) ............................................... 12
Programming the Oven ................................................................................................................. 13
Customized Operation ................................................................................................................... 17
Energy Saving Mode ..................................................................................................................... 20
Shutdown ....................................................................................................................................... 20
Restarting Oven ............................................................................................................................. 20
TROUBLESHOOTING ........................................................................................................................ 21
Burners Will Not Light on Gas Oven .............................................................................................. 21
Alarms and Display Messages ...................................................................................................... 21
Other Troubleshooting Topics ........................................................................................................ 21
CLEANING .......................................................................................................................................... 22
MAINTENANCE .................................................................................................................................. 23
General ......................................................................................................................................... 23
Preventive Maintenance ................................................................................................................ 23
Service and Parts Information ....................................................................................................... 23
OWNER PREVENTIVE MAINTENANCE PROCEDURE .................................................................... 24
Introduction .................................................................................................................................... 24
Preventive Maintenance Procedure .............................................................................................. 24
– 4 –
OPERATION AND CARE OF
MODEL OV500 RACK OVEN
RETAIN THIS MANUAL FOR FUTURE REFERENCE
GENERAL
The Baxter OV500 Rack Oven accommodates a roll-in rack. It is equipped with an electronic oven control
for baking, roasting and/or steaming applications. A mechanism in the oven ceiling picks up and rotates
the rack during the baking or cook cycle.
Model OV500G1 is rated at 180,000 Btu/hr, natural or propane gas.
Model OV500G2 is rated at 300,000 Btu/hr, natural or propane gas.
Model OV500G1-EE is rated at 180,000 Btu/hr, natural or propane gas.
Model OV500G2-EE is rated at 275,000 Btu/hr, natural or propane gas.
Model OV500E1 is rated at 25.7 - 34.2 kW.
Model OV500E2 is rated at 38.5 - 51.3 kW.
Baxter Rack Ovens are produced with quality workmanship and material. Proper installation, usage, and
maintenance of your oven will result in many years of satisfactory performance.
It is suggested that you thoroughly read this manual and carefully follow the instructions provided.
INSTALLATION
The Baxter OV500 Series Rack Oven must be installed or moved only by authorized Bakery Systems
trained service technicians.
– 5 –
OV500 DIGITAL CONTROLS
OPERATION
– 6 –
Control Guide - Advanced
AUTO ON/OFF
AUTO ON TIME
AUTO
OFF
TIME
AUTO
OFF
TIME
AUTO
OFF
TIME
BAKE TIMER
AUTO
OFF
TIME
STEAM TIMER
AUTO
OFF
TIME
STEP
AUTO
OFF
TIME
STEP
AUTO
OFF
TIME
STEP
BUTTON ACTION DISPLAY
Press to turn the oven ON or OFF. Control panel displays are lit when the oven is on. Oven
defaults to Program 0. If oven is turned OFF and back
ON within 2 minutes, the oven will come up in the last
mode and oven setting.
TIMER
AUTO
ON
TIME
Press to enter current time or time for
oven to automatically turn ON or OFF,
when corresponding Auto On Time or
Auto Off Time button is pressed.
Press arrow keys to set the desired
time of oven to automatically turn ON.
The AUTO ON/OFF TIMER window displays the current
time or the time the oven will automatically turn ON or
OFF.
The AUTO ON/OFF TIMER window displays the time
the oven will automatically turn ON.
AUTO OFF TIME
AUTO
OFF
TIME
TIMER ON/OFF
TIMER
ON
OFF
SET TEMP
FAN
DELAY
Press arrow keys to set the desired
time of oven to automatically turn OFF.
Press to turn the automatic timer ON
or OFF.
Press to set the desired temperature
(5-degree increments).
Press arrow keys to enter the BAKE
time (1 minute increments). Press the
up arrow key to enter additional time at
the end of the bake program.
Press to enter the STEAM time
(5-second increments in Burst steam or
Bakery mode; 1-second increments in
Pulse steam or Food Service mode).
Press to enter the FAN DELAY time
(1-minute increments).
The AUTO ON/OFF TIMER window displays the time
the oven will automatically turn OFF.
The indicator light beside the timer ON/OFF button is lit
when the function is enabled.
The SET TEMP window displays the set temperature.
The HEAT ON light is lit while the oven is heating. The
actual temperature in the oven cavity is displayed in the
OVEN TEMP window.
The BAKE TIMER window displays the amount of time
for the current baking cycle. The minutes set are the
left two digits and minutes remaining are the right two
digits. The windows can be set to display hours and
minutes remaining. The ON light is lit when bake time
is active. See Customized Operation to congure this
setting.
The STEAM TIMER window displays the amount of
time set for the steam cycle. The ON light is lit when the
steam system is active.
The FAN DELAY TIMER window displays the amount of
time set for the circulation blower delay cycle
0-9 minutes.
START
STOP
RECIPE
Press to start the BAKE TIMER. The ON light blinks when the BAKE TIMER is active.
Press to stop the BAKE TIMER or
The ON light is off when the BAKE TIMER is inactive.
silence the beeper after the BAKE
TIMER has timed out.
Press the arrow keys to select a bake
program.
Press to select one of four baking
steps.
The RECIPE window displays the number of the current
program.
The corresponding indicator light will be lit (1 to 4),
depending on which step is selected.
– 7 –
BUTTON ACTION DISPLAY
AUTO
OFF
TIME
STOP
STEP
Press to open or close the vent. The indicator light next to the VENT button is lit when
the vent cycle is enabled.
Use to cool down the oven. To enable this feature, set a temperature at least 25°F
COOL
DOWN
Auto On/Off Timer and Clock
The Auto ON/OFF Timer display shows the current time of day. To set the clock, the control must be turned
on. Press and hold either arrow button to initiate clock setting, then adjust time using arrow buttons. A few
seconds after the time is adjusted, the colon in the time display will resume ashing.
Timer Settings
The oven can be set to turn itself on and off. After the AUTO ON/OFF TIMER is set, the POWER ON
OFF button can be pressed to turn the oven off. This will not disrupt the AUTO ON/OFF setting. Electrical
power to the oven must remain on.
NOTE: Auto On/Off has restricted access when P21 (Advanced Energy Savings Mode) is set to 1.
(14°C) cooler than the oven temperature. Press the
COOL DOWN button. The COOL DOWN mode is exited
when the oven reaches the new set temperature, or if
door is opened when temperature is 25°F (14°C) below
set temperature, or by pressing any button.
1. To set the oven to turn on, press and hold the AUTO ON TIME button. The previously entered start
time will appear in the display. Use the UP and DOWN arrows to adjust the start time. Then release
the AUTO ON TIME button.
2. To set the oven to turn off, press and hold the AUTO OFF TIME button. The previously entered end
time will appear in the display. Use the UP and DOWN arrows to adjust the end time. Then release
the AUTO ON TIME button.
3. To enable the automatic start, press and hold the TIMER ON/OFF button until the indicator LED to
the right of the TIMER ON/OFF button is illuminated.
NOTE: When using AUTO ON/OFF to preheat the oven, if the oven is not disturbed for the time set in
parameter P17 (Temperature setback time), it will revert to the Setback temperature stored in parameter
P18 (Setback temperature) setup.
Backup Battery
The clock is backed up by a lithium battery which keeps the clock circuitry operating when all external power
is off. If the battery becomes low or dead while the external power is off, the display will read 12:00 (12
hr mode) or 0:00 (24 hr mode) and will not increment until a new time is set. The clock will operate with a
dead or missing battery, but must be set each time external power is turned on. Batteries must be replaced
when low or dead to avoid corrosive damage to the circuitry. Contact your local authorized service ofce.
– 8 –
Oven Preheat
For best results, the oven must be preheated to bake temperature before baking begins.
1. The door must be closed for oven to heat. The rack carrier will lift and rotate only during timed
bake.
NOTE: The rack carrier will be in the unload position from the last bake. If the rack carrier was moved
out of the home position, the rack carrier will lift and turn to the unload position when the door is opened.
2. Press the POWER ON OFF button to turn the oven on.
3. Press the UP or DOWN arrows next to the SET temp window to enter the desired baking temperature.
Actual temperature of the oven will appear in the OVEN TEMP window.
4. For optimum steaming capability, allow 30 minutes after the oven has reached the set temperature
for the steam system to charge.
5. The oven is now ready for baking operations.
Basic Operation
The oven and its parts are hot. To prevent burns, use hot pads or protective mitts
when loading or unloading the oven.
Hot air and steam are released from the oven interior when the loading door is
opened. To avoid burns, open the door slowly and keep clear of the opening.
1. Preheat the oven (See Oven Preheat).
2. Manually select baking settings:
• Press the UP or DOWN arrows next to TIMER
to enter the desired value.
• Press the UP or DOWN arrows next to
STEAM TIMER to enter the desired value.
• Press the UP arrow next to FAN DELAY to enter the desired value.
• The steam and airow delay settings are optional and can be left at 0 if desired.
3. Slowly open the door and load product.
4. Press the start button and close the door. The on light in the Timer window blinks as the timer counts
down.
5. Rack lifts from oor and rotates from right to left.
6. The oven beeps after the TIMER times out. Press STOP to silence the beeper.
7. Open door. Allow rack carrier to stop and lower. Remove product.
– 9 –
Loading Procedure
1. Type B and C rack carriers are equipped with stops on both ends. For B lifts, ensure stop ap is in
the up position to load the rack on the rack carrier. For C lifts, push rack stop to the left after rack is
loaded.
2. Roll the rack into the oven so the end brackets channel onto the rack carrier. When using racks
equipped with pan stops, load racks so stops will prevent movement of trays toward user when racks
are unloaded. Position pans so they do not extend beyond the rack. If the pans extend beyond the
rack it may cause the rack to get jammed when rotating.
3. Close the loading door. The rack carrier will lift and rotate only during timed bake.
Unloading Procedure
The oven and its parts are hot. To prevent burns, use hot pads or protective mitts
when loading or unloading the oven.
Hot air and steam are released from the oven interior when the loading door is
opened. To avoid burns, open the door slowly and keep clear of the opening.
1. Press STOP and/or open the loading door to silence the beeper.
2. Wait for the rack carrier to stop and lower.
3. For B lifts, push the rack stop down to unload the rack from the rack carrier. For C lifts, push rack
stop to the right to open.
4. Roll the rack from the rack carrier.
5. Close the loading door.
Cooling Oven
• To cool the oven more than 20 degrees below its current temperature; change SET TEMP to the
desired new temperature, open the oven door, and press COOL DOWN. The SET TEMP display
will alternate between ‘COOL’ and the SET TEMP until the oven has cooled. When the oven has
reached the set temperature, the alarm will beep and the control will return to normal operation.
Closing the oven door or pressing any control button during Cool-Down mode will also return the
control to normal operation.
• The VENT control can provide a means of cooling down the oven. When the oven is in the off
mode and the door is open, press the VENT button once to start or stop the circulation fan. Vent
light will be lit. The fan will also stop when the door is closed or the oven is put into the on mode.
• If the oven temperature is more than 20 degrees higher than the set temperature, and the bake
timer is not activated, the oven will automatically open the vent. The vent will remain open until
the oven temperature is within 20 degrees of the set temperature.
Operational Hints
• On the initial startup, the oven temperature will default to the factory setting of 375°F (190°C)
unless changed.
• During a baking cycle, the START and STOP buttons control the TIMER, STEAM, and FAN DELAY
settings only. They have no effect on the oven heat. When the TIMER times out, the oven heat will
cycle on and off to maintain the set temperature. Care should be taken not to overbake products.
• To adjust the temperature during a baking cycle, press the UP or DOWN arrows in the Oven Temp
section to enter the new temperature. If P20 (Restricted operator mode) is set for 1 then oven
temperature cannot be changed during the bake cycle.
– 10 –
• To adjust steam settings, press the corresponding arrows to enter the new values. The steam timer
cannot be adjusted during bake operation.
• You can adjust the time remaining with the arrows. The set time remains unchanged unless you
“0” out the remaining time. If P20 (Restricted operator mode) is set for 1 the bake time cannot be
changed during the bake cycle.
• If the door is opened at any time during the baking cycle, the TEMP, TIME, STEAM, and FAN
DELAY settings will pause. Close the door to resume all functions.
• The FAN DELAY option turns off the airow at the beginning of the baking cycle for the total time
entered in this window. The heat is off while the FAN DELAY is activated.
• The oven monitors the heating system by comparing the current oven temperature to the set
temperature. If a problem arises in the heating system or there is a heating system failure, both
temperature displays will ash after 15 minutes. If the problem continues, contact your authorized
Bakery Systems service agency.
BACK-UP CONTROL OPERATION (OPTIONAL)
If the main control panel ceases to function properly, baking can continue with the use of the Back-up
Controls, if equipped. The Back-up Controls are located behind the control door on rear wall of the
component panel.
To activate the Back-up Controls, ip the toggle switch to BACK-UP position. Temperature and steam are
now controlled by the thermostat dial and steam rocker switch, located on the back-up control panel. Set
the thermostat dial to the desired temperature. Once the oven has reached temperature, steam can be
injected by pressing and holding the steam rocker switch up to a maximum of 20 seconds. More than this
will cool down the oven and steamer excessively. Venting the oven must be done manually by opening
the door. The rack carrier will stop and lower when door is open. Close door after venting is complete for
rack carrier to lift and resume rotating. While in the backup mode the timer feature will not function.
SAFETY ALARM (STANDARD FEATURE, NO PARAMETER SETUP REQUIRED)
If the temperature at the probe is in the range of 570 - 600 degrees Fahrenheit for 10 seconds, the unit
will do the following:
1. Shut off all features.
2. Sound an alarm.
3. Flash the OVEN TEMP display (actual temperature is displayed).
4. Display the letters ‘SHdn’ in the TIMER display.
The oven will remain in the shutdown mode until the 120VAC power is shut off. Turning on and off the
circuit breakers will restore the oven to normal operation if the temperature is below 570 degrees.
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
There may be multiple circuits. Be sure all circuits are disconnected.
Shut off gas. Contact your authorized bakery systems service ofce.
– 11 –
PULSE OR FOOD SERVICE STEAM MODE
This mode can be used to provide steam on a periodic basis throughout operation. When this mode is
enabled, the STEAM TIMER controls how many seconds of steam are provided to the oven, while a value
entered in the Parameter 14 (Steam timer mode) setup controls how frequently the steam is operated.
To enable the Pulse Steam mode:
1. Enter the parameter set up mode by pressing and holding the START button and POWER ON OFF
button.
2. Select Parameter 14 (Steam timer mode).
3. If the TIMER window displays ‘0’, it is set up for Burst Steam or Bakery Mode (factory default). Press
the UP or DOWN arrow buttons to enter FSS mode (display will change to a 3-digit number).
4. Set the desired time between steam cycles using the UP or DOWN arrow buttons. The range is from
300 seconds (5 min.) to 990 seconds (approximately 17 min.), and increments by 10 seconds at a
time.
5. After setting the desired cycle, press the POWER ON OFF button to save the settings.
6. The STEAM TIMER will now operate in 1-second increments, up to 10 seconds, to set the duration
of steaming.
Examples: ‘300’ is selected for P14 (Steam timer mode)
‘3’ is entered in STEAM TIMER
= steam is turned on for 3 seconds every 300 seconds (5 min.)
‘990’ is selected for P14
‘3’ is entered in STEAM TIMER
= steam is turned on for 3 seconds every 990 seconds (17 min.)
To return the oven to Burst Steam Mode, repeat the above process to access P14 and set the value in
the TIMER window to ‘0’. The STEAM TIMER will now operate in 5-second increments.
KOSHER OPERATION MODE (OVENS EQUIPPED WITH KOSHER PACKAGE)
NOTE: The oven will be put into Kosher operation mode by authorized personnel at the time
of start-up.
NOTE: Setting up the parameters and adding programs to the controller should be done before the initial
start-up since the oven controller has to be shut off to do this.
For Kosher operations, the oven must maintain a minimum temperature in order to retain Kosher approval.
The oven control will make the minimum set temperature 200°F in order to maintain minimum temperature
requirements. The oven controller can not be set below 200° F.
If the oven temperature is at risk of falling below the approved range, a rapid beep alarm will sound (faster
than the normal TIMER alarm). If you hear this alarm, do the following:
• Check that the oven door is closed.
• If the Vent mode is active, turn the Vent off.
If the oven temperature falls below 150°F, the control will lock out. The display will read ‘LOC OUT’ and
the unit will not operate. Authorized personnel must be contacted to restart the oven.
If the control is inadvertently turned OFF while in kosher mode, when powered ON, the control will re-start
in kosher mode as long as the temperature has not dropped below the minimum requirements.
– 12 –
PROGRAMMING THE OVEN
Single Step Recipes
The recipe menu stores up to 99 recipes that can be recalled by number when needed. A recipe is a set
of baking instructions (temperature, time & steam time, vent and fan delay settings) that the operator
denes for any baking operation.
1. With the oven in the OFF mode, press and hold the UP arrow in the STEP section. While pressing
and holding the UP arrow, press and hold the POWER ON OFF button for 3 seconds. When all the
displays light, the oven is in the recipe mode.
2. Press the RECIPE UP or DOWN arrows until the recipe number that is desired is displayed.
3. Press the TEMP UP or DOWN arrows to enter the desired temperature.
4. Set the Time, Steam, Fan Delay, and Vent settings:
• Press the UP or DOWN arrows next to TIMER to enter the desired time.
• Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time.
• Press the UP arrow next to FAN DELAY to enter the desired time.
NOTE: Steam and fan delay settings are optional and can be left at 0 if desired.
• Press the VENT button to vent the cavity for the entire time of the step. When step is complete,
vent will close.
5. To store the recipe, press the RECIPE UP or DOWN arrows to move to the next recipe number or
press the POWER ON OFF button to exit the recipe mode. To store additional recipe settings, repeat
steps 2 to 4.
– 13 –
Multi-Step Recipes
Additional steps can be entered within the original recipe number. Up to four individual steps can be added
by the operator, each with different bake settings.
For example, Recipe 1 has temperature, time, steam, and fan delay time settings set by the operator. This
is known as Step 1. After the timer times out in Step 1, the oven automatically starts the programmed bake
settings in Step 2. The system continues with each step until all steps have been timed out.
1. With the oven in the OFF mode, press and hold the UP arrow in the STEPS section. While pressing
and holding the UP arrow, press the POWER ON OFF button for 3 seconds. When all the displays
light, the oven is in the recipe mode.
2. Press the RECIPE UP or DOWN arrows until the recipe number that is desired is displayed. The
Step 1 light is lit.
3. Press the TEMP UP or DOWN arrows to enter the desired temperature.
4. Set the Time, Steam, Fan Delay, and Vent settings:
• Press the UP or DOWN arrows next to TIMER to enter the desired time.
• Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time.
• Press the UP arrow next to FAN DELAY to enter the desired time.
NOTE: The steam and fan delay settings are optional and can be left at 0 if desired.
• Press the VENT button to vent the cavity for the entire time of the step. When step is complete,
vent will close.
5. Press the UP arrow in the STEPS section to advance to the next step within the recipe. The selected
step light is lit. Repeat steps 3 and 4 above to set each step, if needed, in the program.
6. To store all the steps in the program, press the RECIPE UP or DOWN arrows to move to the next
recipe number, or press the POWER ON OFF button to exit the recipe mode.
– 14 –
Editing the Recipes
1. With the oven in the OFF mode, press and hold the UP arrow in the STEPS section. While pressing
and holding the UP arrow, press the POWER ON button for 3 seconds. When all the displays light,
the oven is in the recipe mode.
2. Press the RECIPE UP or DOWN arrows until the recipe number that is desired is displayed.
3. Enter the new Time, Steam, and Fan Delay settings:
• Press the UP or DOWN arrows next to TIMER to enter the desired time.
• Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time.
• Press the UP arrow next to FAN DELAY to enter the desired time.
NOTE: The steam and fan delay settings are optional and can be left at 0 if desired.
4. To change the settings in a Step, press the UP arrow in the STEPS section and make changes in
each step accordingly.
5. To store the recipe, press the RECIPE UP or DOWN arrows to move to the next recipe number or
press the POWER ON OFF button to exit the recipe mode.
– 15 –
Using the Recipes
1. With the oven on, press the RECIPE UP or DOWN arrows to select the desired recipe number (1-
99). The TEMP, TIMER, STEAM, and FAN DELAY settings are displayed.
2. Conrm that the oven is at the set temperature.
3. Slowly open the doors.
4. Roll the rack into the oven so the end brackets channel onto the rack lifting carrier. (See Loading
Procedure.)
5. Press START, and then close and latch the door.
6. A beeper will sound after the TIMER times out. Press STOP to silence the beeper.
Recipe Hints
• The oven defaults to the Recipe 0 settings when rst turned on. Recipe 0 settings are as follows:
Temp = 375°F, Timer = 0, Steam Timer = 0, Delay Timer = 0, Recipe = 0.
• Any combination of bake settings can be manually entered for one-time custom baking operations.
These settings are not saved to the recipe memory.
• If any of the parameters are changed in a recipe before or during a bake cycle, the oven reverts to
a manual program (Recipe 0). If P20 (Restricted Mode) is set for 1 the settings can not be changed
during a bake cycle.
• The RECIPE UP and DOWN arrows have no effect while the bake cycle is in progress. However,
if the TIMER has been stopped, either by pressing the STOP button or by opening the door, then
pressing the RECIPE UP and DOWN arrows will select a new recipe and cancel the baking cycle
that was in progress.
• When selecting recipes, the system will skip over unprogrammed numbers. For example, if Recipe
1 is displayed in the RECIPE window and no recipes are stored in 2, 3, and 4, then the system will
skip over 2, 3, and 4. Recipe 5 will be the next recipe displayed.
– 16 –
CUSTOMIZED OPERATION
The OV500 oven controls have the capability of being customized to t your own personal needs using
the setup mode.
Before entering the setup mode, read all the instructions to make sure you are completely clear on what
to do. If you need assistance, please call your authorized Baxter service ofce.
Entering Setup Mode
With the oven in the OFF mode, press and hold the START button. While pressing and holding the Start
button, press the POWER ON OFF button for 3 seconds. The oven is now in Setup mode and P1 is
displayed in the SET TEMP window.
Changing Items in Setup Mode
The number in the SET TEMP window is the setup number. The TIMER window displays the setup item
(the settings that can be changed).
1. To change the setup number, press the SET TEMP UP or DOWN arrows. The setup item will be
displayed in the TIMER window.
2. To make a change in the setup item being displayed, press the TIMER UP or DOWN arrows. To
adjust the setting, see Setup Guide. Do not attempt to change item numbers P4, P5, P6, and P8.
Consult your authorized Baxter service ofce for help with these features.
3. To exit the setup mode, press the POWER ON OFF button.
– 17 –
Setup Guide
SETUP
NUMBER
P1 Maximum
P2 Preheat
P3 Minimum
P4 Temperature
P5 Heat OFF Offset This value adjusts the temperature difference between the set point and
P6 Heat Difference
P7 Maximum Steam
P8 Temperature
P9 Timer Mode The TIMER can be set up to display minutes set/minutes remaining or hours
P10 Vent Evacuate
P11 Vent Open
P12 End of Bake
P13 End of Bake
SETUP ITEM DISPLAY
This is the maximum temperature at which the oven can be set. Range is 50°F
Temperature
Setpoint
Temperature
Temperature
Setpoint
Offset
Hysteresis
Time
Units
Time
Percentage
Automatic
Vent - Enable
Automatic
Vent Time
to 525°F (10°C to 275°C).
This is the default temperature setpoint when the oven is rst turned on
(Program 0). The preheat temperature cannot be set higher than the value in
P1 or lower than the value in P3.
Range is 10°F to 525°F (10°C to 275°C).
This is the minimum temperature at which the oven can be set. Range is 10°F
to 200°F (10°C to 200°C).
This value permits an offset of correction between the oven temperature
display and the real baking chamber temperature. Call your authorized service
agency for help with this feature.
stopping of the heating system. Call your authorized service agency for help
with this feature.
This value adjusts the temperature difference between the on temperature and
off temperature of the heating system. Call your authorized service agency for
help with this feature.
Time set is the maximum time (in seconds) that water is supplied during the
STEAM TIMER operation.
The oven can be set to display temperature in Fahrenheit or Celsius. To ensure
accurate temperature parameters, call your authorized Bakery Systems service
agency for help with this feature.
and minutes. Select 0 for minutes set/minutes remaining or 1 for hours and
minutes. (If this parameter is changed to hours and minutes, a label has been
provided to place on the control panel to indicate the change.)
Time set is the time (in seconds) that the vent is 100% open at the beginning of
the venting cycle. Range is 0 to 180 seconds.
This value is the percentage the bake chamber vent is open after the vent
evacuate time has expired. Range is 5 to 100%.
This feature enables the Automatic Vent Cycle. Select 0 to disable or 1 to
enable this feature (see P13 for entering time).
This is the number of minutes before the end of the bake cycle that the vent is
open.
– 18 –
SETUP
NUMBER
P14 Steam Timer
P15 Interior Light
P16 Clock Operation This selects either 12 hours (AM/PM) or 24 hours real time display. Press the
P17 Temperature
P18 Setback
P19 Lights Mode Select 1 for lights on continuously (when oven is on) or select 0 for automatic
P20 Restricted
P21 Advanced
P22 OV210
P23 Unused
P24 Unused
P25 Communication
SETUP ITEM DISPLAY
The steam timer can be set up to display in seconds or operate in food service
Mode
Brightness
Setback Time
Temperature
Operator Mode
Energy Savings
Mode
Operation Mode
Mode
mode. Select 0 for seconds or 300 to 990 for food service mode.
This value is the brightness of the interior lights. The higher the number, the
brighter the lights. Range is 50 to 100.
Bake Time Up button to switch between the two types of display.
This selects the elapsed time from the last timed bake to when the oven will
lower the oven set temperature to the value set in P18. Range is 10 to 180
minutes.
This selects the oven set temperature that the oven will change to when the
temperature setback time has been exceeded in P17. Range is 50°F to 300°F
(50°C to 300°C).
operation. Lights will turn off automatically after 30 minutes of no user activity
(door opened or closed, no buttons pushed).
Select 1 for Restricted Operator Mode. When a recipe is selected by the
operator, the Bake Timer Minutes Set window will display the total bake time
of all steps in the recipe. Standard operation only displays the minutes in
the selected step. When a recipe is selected and the start button is pressed
the operator cannot make changes to the bake time remaining or the oven
set temp. If set for steam, steam is produced in 5-seconds on, 5-seconds off
intervals for the time set in P7. The maximum solenoid on time range that can
be set in P7 increases to 60 seconds. Change P7 to 60 when P20 is set for 1.
When P20 is changed from 1 = restricted operator mode to 0 = standard mode,
P7 must be changed below 30 (range 0 to 30 max) or solenoid will energize
continuously for up to 60 seconds.
Select 1 for Advanced Energy Saving. Forcing the oven into an advanced
Auto On - Auto Off mode to conserve energy. Several steps are necessary to
enable this mode. Set the Auto On time to allow the oven to preheat before
the rst bake time. Set the Auto Off time. Press the Auto On/Auto Off button to
illuminate the Timer On/Off indicator. Set P17 & P18 to customer settings. Auto
ON/OFF time is restricted when this feature is set to 1. Auto ON/OFF times
can only be changed while in P21.
Select 1 for installation of an HBA control panel and control door on an OV210.
When enabled, the OV210 will emulate all the functions of an HBA.
Select 1 for NAFEM protocol compliant communication.
– 19 –
ENERGY SAVING MODE
Set back
Set back mode provides the ability to dial down the set temperature of the oven automatically when it is
not being used, but needs to be in a standby mode for baking. When the oven is switched to set back
temperature, the heating system remains in standby mode until it reaches that temperature. This leads to
a reduction in the amount of energy used.
Parameter 17 (Temperature Setback Time) allows the user to set the desired time for the oven to sit idle
before dropping the temperature to the value entered in Parameter 18 (Setback Temperature). Adjust
P18 to the desired setback temperature. A setting of 250°F is recommended to keep the steam system
above the water ash point.
Advanced
Advanced energy savings (Parameter 21) mode allows the user to use the features of “Setback” as well
as locking the time that the oven can be turned on or off. This will prevent the oven from being turned on
to early or left on overnight. Follow the instructions for P21 (Advance energy savings mode) to set the
oven for advanced energy savings mode.
The oven will automatically shut down at the pre-determined time, unless there is a bake in process.
If you need to operate the oven after the pre-determined shutoff time, turn the oven back on by pressing
the ON/OFF button and immediately set the Bake Timer to at least 30 minutes and press start. If the bake
timer has not been set to at least 30 minutes the oven will shut down.
NOTE: If you do not use the oven within 30 minutes, after timer counts down to 00:00, the oven will shut
down.
SHUTDOWN
NOTE: Before restarting a gas oven, the power switch and the gas burner valve must be off for a minimum
of 5 minutes.
1. Remove all remaining product.
NOTE: Vent can be used to evacuate steam from oven.
2. Allow the oven to cool, then press the POWER ON/OFF button. If desired, quicker cool down time
can be accomplished through the use of the COOL DOWN button.
3. Clean the baking chamber. See Cleaning page 22.
4. For lengthy shutdowns, disconnect the main power and shut off the gas and water supply.
RESTARTING OVEN
NOTE: Before restarting a gas oven, power switch and gas burner valve must be off for a minimum of
5 minutes.
1. Press the POWER ON OFF button to turn the oven on.
2. Press the UP or DOWN arrows next to the SET TEMP window to enter the desired temperature.
– 20 –
TROUBLESHOOTING
BURNERS WILL NOT LIGHT ON GAS OVEN
1. Check that the loading door is shut and the door switch is actuated.
2. Press the OFF button to turn the oven off and wait 5 minutes.
3. Make sure the gas shutoff valve and gas valve are in the ON position.
4. Press the ON button to turn the oven back on.
If the above suggestions do not remedy the problem, contact a Bakery Systems service ofce.
ALARMS AND DISPLAY MESSAGES
Alarm or Message Cause Action
Temperature display changes
between a number and ‘COOL’.
Display is ashing with no
beeping, while oven is in a timed
bake cycle and is calling for heat.
Display shows ‘SHdn’. Safety Alarm has
Control beeps continuously. Rack Rotation
Controls beeps rapidly (faster
beep than Baker Timer).
Display shows ‘LOC OUT’. Oven in Kosher
Cool Down mode
is active.
Temperature
recovery alert.
disabled oven.
alert.
Temperature alert
for Kosher Mode.
Lock-Out Mode.
To return to normal mode, close oven door or press any
button.
Open oven door and close to reset heat control. If
unit does not begin heating, contact your local Bakery
service ofce.
TURN OFF ALL POWER AND GAS TO THE OVEN.
Contact your local Bakery service ofce.
Check that rack is rotating; check for pans that may be
protruding from rack. If problem persists contact your
local Bakery service ofce.
Turn VENT off, if activated. Gas ovens: check that
burner is ring. If not ring, briey open door and close
to reset temperature control.
Contact your local Bakery service ofce.
OTHER TROUBLESHOOTING TOPICS
Condition Cause Action
Oven circulation fan is running but
oven is turned off.
STEAM TIME cannot be set above
10 seconds, and time increments
by 1-second.
Rack does not lift and rotate. Bake time has not been entered
Oven is in Cooling mode. Close oven door to cancel cooling
Oven is in Food Service or Pulse
steam mode.
in timer and/or timer has not been
started.
– 21 –
mode. If door was not open, contact
your local Bakery service ofce.
See Food Service Mode
instructions to return oven to
Bakery mode.
Enter time in TIMER and press
START. If problem persists, contact
your local Bakery service ofce.
CLEANING
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
There may be multiple circuits. Be sure all circuits are disconnected.
The rack oven and its parts are hot. Use care when operating, servicing or cleaning
the rack oven.
Hot air and steam are released from the oven interior when the loading door is
opened. To avoid burns, open the door slowly and keep clear of the opening.
• Allow the oven to cool.
• Clean the outside of the oven daily with a clean, damp cloth.
• Remove rack(s) and clean as you would any cooking utensil. Use warm, soapy water and a brush.
Rinse with clear water and dry with a clean cloth.
• Use care when cleaning around sensitive interior parts such as probes, sensors or the rotating
mechanism.
• Using a clean cloth and warm, soapy water, wash the stainless steel interior of the oven. Rinse
with clear water and dry with a clean cloth.
• Gently scrape heavy buildup off door glass. Residue can be removed with a glass cleaner when
oven is cool.
• Clean hood lters (if equipped) with soap and warm water.
• Do not use oven cleaners or steel wool on stainless steel surfaces. Never spray down the oven
with water or steam.
• Never use cleaners that contain chlorine. Chlorine corrodes stainless steel.
– 22 –
MAINTENANCE
The rack oven and its parts are hot. Use care when operating, servicing or cleaning
the rack oven.
Hot air and steam are released from the oven interior when the loading door is
opened. To avoid burns, open the door slowly and keep clear of the opening.
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
There may be multiple circuits. Be sure all circuits are disconnected.
On gas ovens, annually check the ue to be sure it is free of obstructions.
GENERAL
As Needed
• Inspect the area around the oven. The area must be free and clear from combustibles. There must
be no obstructions to the air ow.
Daily
• Clean Exterior (See Cleaning).
Weekly
• Clean the oven interior and remove loose debris (See Cleaning).
• Clean the windows.
• Empty grease catcher (if equipped).
Monthly
• Clean exhaust hood lters (if equipped) with soap and water.
Bi-Monthly
• Owner Preventive Maintenance Procedure.
PREVENTIVE MAINTENANCE
The OV500 Rack Oven must be kept on a regular preventive maintenance schedule. Ovens require
specic preventive maintenance based on usage and environmental factors. The failure to have the oven
properly maintained by following recommended preventive maintenance procedures may result in higher
repair costs, shortened equipment life, or unsafe operating conditions.
It is the owner’s responsibility to make sure preventative maintenance is performed on the rack oven.
This will ensure continued safe and reliable operation. Contact an authorized Bakery Service agency to
provide this skilled service for you.
SERVICE AND PARTS INFORMATION
Contact your authorized Bakery Systems service ofce.
– 23 –
OWNER PREVENTIVE MAINTENANCE PROCEDURE
INTRODUCTION
This customer preventive maintenance (PM) section includes procedures to inspect for proper operation
and cleaning of components. Owner Preventive Maintenance Procedures are written for gas ovens. They
can also be used for electric ovens by omitting the steps that refer to components found only on gas ovens.
To maintain the safety and performance of bakery ovens a program of scheduled periodic maintenance
must be implemented. It is the sole responsibility of the user to establish, schedule, and enforce such a
program. Although the service interval will vary depending on the environment in which the equipment
is operating it is recommended that Preventive Maintenance be performed and all safety devices are
checked at a minimum of 12 month intervals. Check with the authority having local jurisdiction if there are
specic maintenance requirements specied by local, state, or national codes. A convenient PM Checklist
is provided at the end of this section.
NOTE: This PM procedure does not discuss repair or replacement of components. Upon completion of
the PM procedure you will need to contact a qualied servicer for any needed repairs.
Tools Used For Inspection Procedure
• Standard set of hand tools
• Vacuum cleaner - shop vac
PREVENTIVE MAINTENANCE PROCEDURE
Disconnect the electrical power to the machine and follow lockout / tagout procedures.
There may be multiple circuits. Be sure all circuits are disconnected.
Shut off the gas before servicing the unit.
Certain procedures in this section may require electrical test or measurements while
power is applied to the machine. Exercise extreme caution at all times. If test points are not easily
accessible, disconnect power and follow lockout / tagout procedures, attach test equipment and
reapply power to test.
Inspect Oven Lamps
1. Lamps should be on when oven is powered.
2. If not, replace lamps (Fig. 1).
A. Remove lens cover by turning out of lamp
housing.
B. Remove oven lamp by turning lamp out of
lamp socket.
3. Reverse the procedure to install new lamps.
– 24 –
Fig. 1
Clean and Vacuum Components and Control/Burner Compartment Area (Gas Only)
1. Clean the control/burner compartment (Fig. 2) area of dust and/or lint accumulation.
2. Vacuum the control/burner compartment oor of dust and/or lint accumulation.
3. Gain access to the top of oven and clean dust that may have accumulated on top of circulation blower
motor (Fig. 3) and motor cooling fan.
Fig. 2 Fig. 3
Rack Lift and Rotation Assemblies
1. Check rack lift assembly for proper operation.
A. Open door. Rack lift should lower to correct height of rack and be in forward loading position
to accept rack entry.
B. The oven rack should be easily rolled in and out of oven and the wheels completely off the
oven oor when raised.
2. Tighten all set screws (4) in carrier (Fig. 4).
A. Check and tighten all set screws on carrier.
Fig. 4
– 25 –
Inspect Door Components
1. Check loading door latch.
A. Check door gasket for good condition. If
door gasket needs replacement, contact
your local Bakery Systems ofce for service.
B. Check that the loading door lock ramps are
clean (Fig. 5) and rollers on the door move
up and down and spin freely (Fig. 6).
C. Adjust latch ramps in or out by loosening
the two screws. DO NOT REMOVE THEM.
Slide ramp in or out to loosen or tighten
door (Fig. 5).
D. Tighten screws.
2. Check door sweep.
A. The door sweep should hit the oor evenly
across door width, when door is in the closed
position.
B. Turn oven on.
Fig. 5
C. If air (or steam) blows out from underneath
the door, door will need to be adjusted. If door
sweep needs replacement or adjustment,
contact your local Bakery Systems ofce for service.
3. Check interior door release (Fig. 7) for proper operation.
4. Check door switch for proper operation.
A. When door switch actuator rod is in the open position
(door open), the door switch rollers should be
positioned on the small part of the rod (Fig. 8).
Fig. 6
Fig. 7
– 26 –
Fig. 9Fig. 8
5. Check door handle operation.
A. Pull out on door handle (Fig. 10) to open door, then push door shut (Fig. 11). If the door is too
hard to open or close, see door ramps adjustment (Fig. 5).
Fig. 10 Fig. 11 Fig. 12
6. Clean door glass.
A. With the loading door shut, pull door handle lock pin out
(Fig. 12).
B. Pull door handle out (Fig. 13).
C. Swing handle open (Fig. 14).
NOTE: Make sure not to dent door on hinged side.
D. Check that there is no residue buildup on the handle lock
Fig. 13
mechanism (Fig. 14).
NOTE: The handle for the glass is located at the top or bottom of glass.
E. Pull out on handle (Fig. 14) to open glass door. If glass door needs to be adjusted, contact your
local Bakery Systems ofce for service.
Failure to contact service for glass door adjustment may result in the glass breaking.
Fig. 14
– 27 –
F. To close the glass door simply push shut.
G. To close handle, the lock mechanism needs to
be in the unlock orientation (Fig. 15).
NOTE: If lock is not in the unlock orientation, pull lock
pin out and rotate lock to the unlock orientation.
H. Place lock box over hex bolt and slowly push
handle in to door (Fig. 15). Check to see if
the handle latch engaged by opening door
(Fig. 10). Repeat if necessary.
Inspect Air Louvers
1. Check air louvers (shutters) (Fig. 16) inside oven and
tighten any loose screws.
2. Check oven interior, tighten or replace loose or missing
panel screws. Also check oor anchors.
Inspect Cavity Vent
1. Check cavity vent for proper operation.
A. Push VENT (Fig. 17) button on control panel to
open vent and then push again to close vent.
B. Visually check that vent opens (Fig. 18) and
closes (Fig. 19) when button is pressed.
C. Check that vent gasket is intact.
Fig. 15
Fig. 16
Fig. 17
Fig. 18 Fig. 19
Visually Inspect Electrical Connections
1. Inspect all wiring connections for discoloration. If discoloration is visible, contact your local Bakery
Systems service ofce.
– 28 –
Verify Ignition Module Safety Lockout Functions
(Gas Only)
1. Verify ignition module safety lockout functions.
A. Turn off main gas supply to the oven.
B. Open control panel door to gain access to
burner compartment area.
C. Turn the oven on. Check that electrical
breakers are turned on.
D. Set the oven to call for heat and make sure
convection fan is running.
E. Observe LED light through hole in control
box cover (Fig. 20). After trying to light
the burner three times, the module should
lockout. (See chart below.)
F. Turn off the oven control for a minimum of
ve seconds and then turn the oven control
back on.
G. Turn main gas supply to the oven back on.
H. Set the oven to call for heat, making sure
convection fan is running and the burner has
established a ame.
I. Turn off main gas supply to the oven.
J. Observe LED light through hole in control box cover (Fig. 20). The ignition module should go
into lockout after three trials for ignition. (See chart below.)
LED DIAGNOSTIC INDICATOR CODES
LED LED
LED off No Fault
LED Illuminated Module Fault
‘1’ Flash Air Flow Fault
‘2’ Flash Flame Fault No Call for Heat
‘3’ Flash Ignition Module Lockout
K. If the proper results have been obtained,
proceed to step 2 , if not contact your local
Bakery Systems service ofce.
2. Verify hood exhaust air pressure switch (Fig. 21)
operation.
Fig. 20
Fig. 21
A. Turn on main gas supply and set oven control to call for heat and make sure convection fan is
running.
B. Once ame is established, disconnect tubing from hood pressure switch hose. Burner ame
should go out.
C. Reconnect tubing. Burner should establish a ame. If not, contact your local Bakery Systems
service ofce.
– 29 –
3. Verify draft inducer pressure switch (Fig. 22)
operation.
A. Set oven control to call for heat and make
sure convection fan is running.
B. Once ame is established, disconnect tubing
from draft inducer pressure switch. Burner
ame should go out.
C. Reconnect tubing. Burner should establish
a ame. If not, contact your local Bakery
Systems service ofce.
Verify Operation of Steam
1. Check steam system for proper operation.
A. Turn the water supply on.
B. Turn oven on and set to normal bake
temperature.
C. Allow oven to preheat for 30 minutes.
D. Set control to call for steam.
E. Observe operation. If steam is not observed, contact your local Bakery Systems service ofce.
Fig. 22
After completion of the owner PM procedure, you will need to contact a qualied servicer for any
needed repairs.
Keep a copy of the Owner Preventive Maintenance Checklist for your records.
– 30 –
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– 31 –
NOTES
FORM 36715 Rev. B (February 2016) PRINTED IN U.S.A.
– 32 –
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