Blodgett MARK V XCEL CONVECTION OVEN User Manual

MARK V XCEL  
CONVECTION OVEN  
INSTALLATION -- OPERATION -- MAINTENANCE  
BLODGETT OVEN COMPANY  
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802)864-0183  
PN 36433 Rev C (2/05)  
E 2003 --- G.S. Blodgett Corporation  
THE REPUTATION YOU CAN COUNT ON  
For over a century and a half, The Blodgett Oven Company has been building  
ovens and nothing but ovens. We’ve set the industry’s quality standard for all  
kinds of ovens for every foodservice operation regardless of size, application  
or budget. In fact, no one offers more models, sizes, and oven applications  
than Blodgett; gas and electric, full-size, half-size, countertop and deck, con-  
vection, Cook’n Hold, Combi-Ovens and the industry’s highest quality Pizza  
Oven line. For more information on the full line of Blodgett ovens contact your  
Blodgett representative.  
Model:  
Your Service Agency’s Address:  
Serial Number:  
Your oven was installed by:  
Your oven’s installation was checked by:  
Table of Contents  
Introduction  
Installation  
Oven Description and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
2
Delivery and Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
3
4
4
5
5
6
6
7
8
9
Oven Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Sanitation Bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Leg Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Caster Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Double Section Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Oven Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Utility Connections --- Standards and Codes . . . . . . . . . . . . . . . . . . . . . . . . .  
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Initial Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Operation  
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Solid State Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Solid State Digital Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Solid State Digital Control with Humidaire . . . . . . . . . . . . . . . . . . . . . . . . . . . 15  
CH-Pro3 (Solid State Programmable Digital Control) . . . . . . . . . . . . . . . . . . 18  
Blodgett IQ2T Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
General Guidelines for Operating Personnel . . . . . . . . . . . . . . . . . . . . . . . . . 30  
Maintenance  
Cleaning and Preventative Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31  
Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32  
Introduction  
Oven Description and Specifications  
Cooking in a convection oven differs from cooking  
in a conventional deck or range oven since heated  
air is constantly recirculated over the product by  
a fan in an enclosed chamber. The moving air con-  
tinually strips away the layer of cool air surround-  
ing the product, quickly allowing the heat to pene-  
trate. The result is a high quality product, cooked  
at a lower temperature in a shorter amount of time.  
Blodgett convection ovens represent the latest ad-  
vancement in energy efficiency, reliability, and  
ease of operation. Heat normally lost, is recircu-  
lated within the cooking chamber before being  
vented from the oven: resulting in substantial re-  
ductions in energy consumption and enhanced  
oven performance.  
Air Flow Pattern for Mark V XCEL  
Figure 1  
ELECTRICAL SPECIFICATIONS (per section) -- MKV1XL/AA  
Volts Phase Electrical Connection  
KW  
Hz  
Amps  
(minimum size)  
L1  
L2  
L3  
N
U.S. and Canadian installations  
11.0  
11.0  
11.0  
11.0  
11.0  
11.0  
60  
60  
60  
60  
60  
60  
208  
208  
1
3
1
3
3
3
53  
33  
50  
31  
16  
15  
---  
53  
33  
50  
31  
16  
15  
---  
---  
---  
---  
---  
---  
6 AWG  
8 AWG  
6 AWG  
8 AWG  
12 AWG  
12 AWG  
28  
---  
220-240  
220-240  
440  
26  
13  
12  
480  
General Export installations  
11.0  
11.0  
11.0  
50  
50  
50  
220-240  
240/415  
230/400  
1
3
3
50  
19  
19  
---  
50  
14  
14  
---  
5
5
Size per local code  
Size per local code  
Size per local code  
14  
14  
2
Installation  
Delivery and Location  
DELIVERY AND INSPECTION  
It is essential that an adequate air supply to the  
oven be maintained to provide a sufficient flow of  
combustion and ventilation air.  
All Blodgett ovens are shipped in containers to  
prevent damage. Upon delivery of your new oven:  
D Inspect the shipping container for external dam-  
age. Any evidence of damage should be noted  
on the delivery receipt which must be signed by  
the driver.  
D Place the oven in an area that is free of drafts.  
D Keep the oven area free and clear of all combus-  
tibles such as paper, cardboard, and flammable  
liquids and solvents.  
D Do not place the oven on a curb base or seal to  
a wall. This will restrict the flow of air and prevent  
proper ventilation. Tripping of the blower mo-  
tor’s thermal overload device is caused by an  
excessive ambient temperature on the right  
side of the oven. This condition must be cor-  
rected to prevent permanent damage to the  
oven.  
D Uncrate the oven and check for internal dam-  
age. Carriers will accept claims for concealed  
damage if notified within fifteen days of delivery  
and the shipping container is retained for in-  
spection.  
The Blodgett Oven Company cannot assume  
responsibility for loss or damage suffered in  
transit. The carrier assumed full responsibility  
for delivery in good order when the shipment  
was accepted. We are, however, prepared to  
assist you if filing a claim is necessary.  
Before making any utility connections to this oven,  
check the rating plate to be sure the oven specifi-  
cations are compatible with the electrical services  
supplied for the oven.  
1. Open the doors, the rating plate is located un-  
der the top edge of the oven.  
OVEN LOCATION  
The well planned and proper placement of your  
oven will result in long term operator convenience  
and satisfactory performance.  
The following clearances must be maintained be-  
tween the oven and any combustible or non-com-  
bustible construction.  
D Oven body right side --- 0” (0 cm)  
D Oven body left side --- 0” (0 cm)  
D Oven body back --- 0” (0 cm)  
D Oven body bottom --- 1/2” (1.2 cm)  
The following clearances must be available for ser-  
vicing.  
D Oven body sides --- 12” (30 cm)  
D Oven body back --- 12” (30 cm)  
3
Installation  
Oven Assembly  
SANITATION BOLTS  
These bolts are required by NSF to block any ex-  
posed hole on the back of an oven. This includes:  
1. Locate the 5/16” bolts that were shipped with  
the oven.  
2. Install the bolts as shown in Figure 2.  
D any unit, single or stacked, without a back panel.  
D any holes in stacked units not used for mount-  
ing stacking brackets.  
Double Stacked Units  
Units without back panels  
Figure 2  
4
Installation  
Oven Assembly  
LEG ATTACHMENT  
CASTER ASSEMBLY  
1. Lay the oven on its back.  
NOTE: Install the locking casters on the front of  
the oven. Install the non-locking casters on  
the back of the oven.  
2. Align the threaded stud in each leg with the  
nut located inside each bottom corner of the  
oven frame. Turn the legs clockwise and tight-  
en to the nearest full turn.  
3. Align the two leg plate holes in each leg with  
those in the oven bottom. Secure each leg us-  
ing two 1/2” bolts.  
Casters for Single and Double Stacked Ovens:  
1. Attach the legs as described.  
2. Pry the adjustable feet out of the legs  
3. Insert one caster into each leg as shown.  
Tighten the lock nuts to secure the casters.  
NOTE: If using casters see CASTER AS-  
SEMBLY before proceeding.  
4. Tip the oven up on the legs.  
5. Level the oven by screwing the adjustable leg  
feet in or out as necessary.  
Adjustable  
Leg Foot  
Caster Assembly  
25” (64 cm) Legs Shown  
Figure 4  
Low Profile Casters for Double Stacked Ovens:  
1. Align the three holes in each caster assembly  
plate with those in the oven bottom. Secure  
each caster using three 1/2” bolts.  
6” (15 cm) Legs Shown  
Figure 3  
Figure 5  
5
Installation  
Oven Assembly  
DOUBLE SECTION ASSEMBLY  
1. Secure the short legs to the bottom sections  
as described.  
2. Attach lower flue box to lower oven.  
3. Place the upper section in position on top of  
the lower oven.  
WARNING!!  
When stacking ovens be sure to remove  
the single oven flue boxes prior to attach-  
ing upper and lower boxes and riser.  
4. Attach the stacking brackets using the re-  
maining 5/16” bolts shipped with the ovens.  
5. Install flue riser and attach upper flue box to  
upper oven.  
OVEN LEVELING  
After assembly, the oven should be leveled and  
moved to the operating location.  
1. The oven can be leveled by adjusting the feet  
or casters located on the bottom of each leg.  
Flue  
Boxes  
Flue Riser  
Figure 6  
6
Installation  
Utility Connections --- Standards and Codes  
THE INSTALLATION INSTRUCTIONS CON-  
U.S. and Canadian installations  
TAINED HEREIN ARE FOR THE USE OF QUALI-  
FIED INSTALLATION AND SERVICE PERSONNEL  
ONLY. INSTALLATION OR SERVICE BY OTHER  
THAN QUALIFIED PERSONNEL MAY RESULT IN  
DAMAGE TO THE OVEN AND/OR INJURY TO  
THE OPERATOR.  
All ovens, when installed, must be electrically  
grounded in accordance with local codes, or in the  
absence of local codes, with the National Electrical  
Code, ANSI/NFPA 70---Latest Edition and/or Cana-  
dian National Electric Code C22.2 as applicable.  
The ventilation of this oven should be in accor-  
dance with local codes. In the absence of local  
codes, refer to the National ventilation code titled,  
Standard for the Installation of Equipment for the  
Removal of Smoke and Grease Laden Vapors from  
Commercial Cooking Equipment”, NFPA-96-Latest  
Edition.  
Qualified installation personnel are individuals, a  
firm, a corporation, or a company which either in  
person or through a representative are engaged  
in, and responsible for:  
D the installation of electrical wiring from the elec-  
tric meter, main control box or service outlet to  
the electric appliance.  
Qualified installation personnel must be experi-  
enced in such work, familiar with all precautions  
required, and have complied with all requirements  
of state or local authorities having jurisdiction.  
General export installations  
Installation must conform with Local and National  
installation standards. Local installation codes  
and/or requirements may vary. If you have any  
questions regarding the proper installation and/or  
operation of your Blodgett oven, please contact  
your local distributor. If you do not have a local dis-  
tributor, please call the Blodgett Oven Company at  
0011-802-860-3700.  
7
Installation  
Electrical Connection  
Wiring diagrams are located in the control  
compartment and on the back of the oven.  
4. Connect the supply wires to top of right con-  
tactor in the control compartment at the lower  
right corner of the oven.  
5. Reinstall the bottom trim and control panel  
covers.  
The electric motor, indicator lights and related  
switches are connected to the oven as follows:  
1. Remove the bottom trim and control panel  
covers. Slide the control panel forward.  
2. Connect the supply conduit to the wire duct lo-  
cated in the lower left hand corner on the back  
of the oven.  
NOTE: To prevent damage there is no power to  
the heating elements when the blower is  
not operating.  
THE BLODGETT OVEN COMPANY CANNOT AS-  
SUME RESPONSIBILITY FOR LOSS OR DAMAGE  
SUFFERED AS A RESULT OF IMPROPERINSTAL-  
LATION.  
3. Run the supply wires through the duct to the  
front of the oven.  
Install incoming  
power on this  
contactor  
Figure 7  
8
Installation  
Initial Startup  
OVEN RESTRAINT  
ADJUSTMENTS ASSOCIATED WITH INITIAL  
INSTALLATION  
If casters are used in conjunction with a power  
supply cord for movable appliances, a fixed re-  
straint should be provided.  
Each oven, and its component parts, have been  
thoroughly tested and inspected prior to ship-  
ment. However, it is often necessary to further test  
or adjust the oven as part of a normal and proper  
installation. These adjustments are the responsi-  
bility of the installer, or dealer. Since these adjust-  
ments are not considered defects in material or  
workmanship, they are not covered by the Original  
Equipment Warranty. They include, but are not  
limited to:  
The restraint (ie: heavy gauge cable) should be at-  
tached without damaging the building. DO NOT  
use the gas piping or electrical conduit for the at-  
tachment of the permanent end of the restraint!  
Use anchor bolts in concrete or cement block. On  
wooden walls, drive hi test wood lag screws into  
the studs of the wall.  
If the oven is moved from its regular location, the  
restraint must be reconnected when theoven isre-  
turned.  
D calibration of the thermostat  
D adjustment of the doors  
D leveling  
1. Mount the supplied bracket to the leg bolt just  
below the power cord.  
D tightening of fasteners.  
No installation should be considered complete  
without proper inspection, and if necessary, ad-  
justment by qualified installation or service per-  
sonnel.  
2. Attach the clip on restraining cable to the  
mounting bracket.  
Back of Oven  
Restraint Cable  
Bracket  
Double stacked unit shown. Use the same procedure for  
single units.  
Figure 8  
9
Operation  
Safety Information  
THE INFORMATION CONTAINED IN THIS SEC-  
TION IS PROVIDED FOR THE USE OF QUALIFIED  
OPERATING PERSONNEL. QUALIFIED OPERAT-  
ING PERSONNEL ARE THOSE WHO HAVE  
CAREFULLY READ THE INFORMATION CON-  
TAINED IN THIS MANUAL, ARE FAMILIAR WITH  
THE FUNCTIONS OF THE OVEN AND/OR HAVE  
HAD PREVIOUS EXPERIENCE WITH THE OP-  
ERATION OF THE EQUIPMENT DESCRIBED. AD-  
HERENCE TO THE PROCEDURES RECOM-  
MENDED HEREIN WILL ASSURE THE  
ACHIEVEMENT OF OPTIMUM PERFORMANCE  
AND LONG, TROUBLE-FREE SERVICE.  
SAFETY TIPS  
For your safety read before operating  
General safety tips:  
D If the oven needs to be moved for any reason,  
the supply cord must be disconnected from the  
unit before removing the restraint cable. Recon-  
nect the restraint after the oven has been re-  
turned to its original location.  
D DO NOT remove the control panel cover unless  
the oven is unplugged.  
Please take the time to read the following safety  
and operating instructions. They are the key to the  
successful operation of your Blodgett conveyor  
oven.  
10  
Operation  
Solid State Manual Control  
CONTROL DESCRIPTION  
1. SELECTOR SWITCH --- controls power to the  
oven for high fan, low fan or cool down.  
2. OVEN READY LIGHT --- when lit indicates  
burner operation. When the light goes out the  
oven has reached operating temperature.  
1
3. SOLID STATE THERMOSTAT - allows an infi-  
nite selection of temperatures from 150-550_F  
(66-288_C). (infinite control shown)  
4. TIMER --- activates an electric buzzer that  
sounds when the cook time expires.  
5. LIGHTS SWITCH --- controls interior lights.  
2
6. CIRCUIT BREAKER SWITCH --- controls pow-  
er to the oven.  
3
4
OPERATION  
1. Turn the SELECTOR Switch (1) to either HIGH  
FAN or LOW FAN. The blower and control com-  
partment cooling fan operate and are con-  
trolled automatically by the action of the  
doors.  
2. Set the SOLID STATE THERMOSTAT (3) to the  
desired setting or temperature.  
3. Preheat until the OVEN READY LIGHT (2)  
goes out.  
4. Load product into the oven. Determine cook  
time and set the TIMER (4).  
5. When the buzzer sounds, remove the product  
from the oven. Turn the TIMER knob (4) to OFF  
to silence the buzzer.  
5
6. Turn the SELECTOR Switch (1) to OVEN OFF.  
Oven Cool Down:  
1. Turn the SELECTOR Switch (1) to COOL  
DOWN.  
NOTE: The doors may be opened to speed the  
6
cooling process.  
Oven Shut Down:  
1. Turn the SELECTOR SWITCH (1) to OVEN OFF.  
Figure 9  
11  
Operation  
Solid State Digital Control  
CONTROL DESCRIPTION  
1. SELECTOR SWITCH --- turns power to the oven  
on or off. Allows selection of Cook or Cool Down  
Modes and fan speed (if applicable).  
2. DISPLAY --- displays time or temperature and  
other information related to oven function.  
1
3. HEAT LAMP --- lights when heater is on.  
4. PULSE LAMP --- lights when Pulsed Fan Mode  
is turned on.  
5. HOLD LAMP --- lights when Hold Mode is  
turned on.  
2
6. DIAL --- used to enter set points in display  
7. START/STOP KEY --- starts or stops the timer.  
8. TIME KEY --- used to show time in the display.  
9. TEMP KEY --- used to show set temperature in  
the display.  
NOTE: Actual temperature is shown while the  
TEMP key is held down.  
10. HOLD KEY --- turns Hold Mode on or off.  
11. PULSE KEY --- turns Pulse Mode on or off.  
12. LIGHTS SWITCH --- controls interior lights.  
4
5
3
8
6
9
7
13. CIRCUIT BREAKER SWITCH --- controls pow-  
er to the oven.  
11  
10  
12  
13  
Figure 10  
12  
Operation  
Solid State Digital Control  
PROGRAMMING  
Cook with Hold:  
NOTE: HOLD light is on when hold mode is on  
and off when hold mode is off.  
To set the cook temperature:  
1. Press TEMP (9) key.  
2. Rotate dial (6) to enter temperature.  
1. Turn SELECTOR switch (1) to the desired po-  
sition.  
2. Enter the cook time and temperature.  
3. Press the HOLD key (10). Enter the hold tem-  
perature.  
To set the cook time:  
1. Press TIME (8) key.  
2. Rotate the dial (6) to enter time.  
NOTE: Time is entered in hours:minutes  
(0:00) or minutes:seconds (00:00).  
4. Load product into oven.  
NOTE: The display reads LOAD with the oven  
is near the set temperature.  
To set the hold time:  
5. Push the START/STOP (7) key. Timer begins  
to count down.  
1. Press HOLD key (10) to turn hold mode on.  
NOTE: HOLD light is on.  
2. Rotate dial (6) to enter the hold temperature.  
3. Press START/STOP key (7)  
6. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE. The  
buzzer turns off after a few seconds. The dis-  
play reads HOLD until the oven reaches the  
hold temperature. Then the timer begins to  
count up.  
7. Push the START/STOP key (7) to stop timer.  
8. Remove the product.  
9. Push HOLD (10) key to turn off hold mode.  
To set the pulse time:  
1. Press PULSE KEY (11) to turn pulse mode on.  
NOTE: Pulse light is on.  
2. Rotate DIAL (6) to enter the pulse time. Pulse  
time is a portion of the pre-set cook time.  
OPERATION  
Cook Only:  
1. Turn SELECTOR switch (1) to the desired po-  
sition.  
2. Enter the cook time and temperature.  
3. Load product into oven.  
NOTE: The display reads LOAD with the oven  
is near the set temperature.  
4. Press the START/STOP key (7). The timer be-  
gins to count down.  
5. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE.  
6. Press the START/STOP key (7) to silence the  
buzzer.  
7. Remove the product.  
13  
Operation  
Solid State Digital Control  
Cook with Pulse:  
Oven Cool Down:  
1. Turn the SELECTOR Switch (1) to COOL  
NOTE: PULSE light is on when pulse mode is on  
and off when pulse mode is off.  
DOWN.  
NOTE: The doors may be opened to speed the  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
2. Enter cook time and cook temperature.  
3. Press PULSE KEY (11). Enter the pulse time.  
A minimum of one minute must be entered to  
operate.  
cooling process.  
Oven Shut Down:  
1. Turn the SELECTOR SWITCH (1) to OVEN OFF.  
NOTE: Pulse time is a portion of the cook time  
and does not increase the previously  
entered cook time.  
4. Load product into oven.  
NOTE: The display reads LOAD with the oven  
is near the set temperature.  
5. Push START/STOP KEY (7). The timer begins  
to count down the cook time. The oven will be  
in pulse mode for the set pulse time. Once the  
set time has expired, the unit will automatically  
switch to cook mode and continue counting  
down.  
6. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE.  
7. Push the START/STOP KEY (7) to turn the  
buzzer off.  
8. Remove the product.  
14  
Operation  
Solid State Digital Control with Humidaire  
CONTROL DESCRIPTION  
1. SELECTOR SWITCH --- controls power to the  
oven for high fan, low fan or cool down.  
2. DISPLAY --- displays time or temperature and  
other information related to oven function.  
3. HEAT LAMP --- lights when heater is on.  
4. PULSE LAMP --- lights when Pulsed Fan Mode  
is turned on.  
5. HOLD LAMP --- lights when Hold Mode is  
turned on.  
6. DIAL --- used to enter set points in display  
7. START/STOP KEY --- starts or stops the timer.  
8. TIME KEY --- used to show time in the display.  
9. TEMP KEY --- used to show set temperature in  
the display.  
NOTE: Actual temperature is shown while the  
TEMP key is held down.  
10. HOLD KEY --- turns Hold Mode on or off.  
11. PULSE KEY --- turns Pulse Mode on or off.  
12. LIGHTS SWITCH --- controls interior lights.  
1
2
4
5
3
8
6
7
9
13. HUMIDAIRE START SWITCH --- activates  
moisture injection for a preset period of 30  
seconds.  
10  
11  
14. HUMIDAIRE LAMP --- lights when water is be-  
ing injected  
15. CIRCUIT BREAKER SWITCH --- controls pow-  
er to the oven.  
12  
13  
14  
15  
Figure 11  
15  
Operation  
Solid State Digital Control with Humidaire  
PROGRAMMING  
Cook with Hold:  
NOTE: HOLD light is on when hold mode is on  
and off when hold mode is off.  
To set the cook temperature:  
1. Press TEMP (9) key.  
2. Rotate dial (6) to enter temperature.  
1. Turn the SELECTOR switch (1) to the desired  
position.  
2. Enter the cook time and temperature.  
3. Press the HOLD key (10). Enter the hold tem-  
perature.  
To set the cook time:  
1. Press TIME (8) key.  
2. Rotate the dial (6) to enter time.  
NOTE: Time is entered in hours:minutes  
(0:00) or minutes:seconds (00:00).  
4. Load product into the oven.  
NOTE: The display reads LOAD when the  
oven is near the set temperature.  
To set the hold time:  
5. Push the START/STOP (7) key. Timer begins  
to count down.  
1. Press HOLD key (10) to turn hold mode on.  
NOTE: HOLD light is on.  
2. Rotate dial (6) to enter the hold temperature.  
3. Press START/STOP key (7)  
6. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE. The  
buzzer turns off after a few seconds. The dis-  
play reads HOLD until the oven reaches the  
hold temperature. Then the timer begins to  
count up.  
7. Push the START/STOP key (7) to stop timer.  
8. Remove the product.  
9. Push HOLD (10) key to turn off hold mode.  
To set the pulse time:  
1. Press PULSE KEY (11) to turn pulse mode on.  
NOTE: Pulse light is on.  
2. Rotate DIAL (6) to enter the pulse time. Pulse  
time is a portion of the pre-set cook time.  
OPERATION  
Cook Only:  
Cook with Pulse:  
NOTE: PULSE light is on when pulse mode is on  
and off when pulse mode is off.  
1. Turn the SELECTOR switch (1) to the desired  
position.  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
2. Enter cook time and cook temperature.  
3. Press PULSE KEY (11). Enter the pulse time.  
A minimum of one minute must be entered to  
operate.  
2. Enter the cook time and temperature.  
3. Load product into the oven.  
NOTE: The display reads LOAD when the  
oven is near the set temperature.  
4. Press the START/STOP key (7). The timer be-  
gins to count down.  
NOTE: Pulse time is a portion of the cook time  
and does not increase the previously  
entered cook time.  
5. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE.  
6. Press the START/STOP key (7) to silence the  
4. Load product into the oven.  
buzzer.  
NOTE: The display reads LOAD when the  
oven is near the set temperature.  
7. Remove the product.  
16  
Operation  
Solid State Digital Control with Humidaire  
5. Push START/STOP KEY (7). The timer begins  
The amount of water injected during the Humid-  
aire cycle may be adjusted as follows:  
to count down the cook time. The oven will be  
in pulse mode for the set pulse time. Once the  
set time has expired, the unit will automatically  
switch to cook mode and continue counting  
down.  
1. Check the pressure gauge on the back of the  
oven while the water is dispensing. The pres-  
sure should be no higher than 3 psi. If less  
moisture is desired, the pressure can be set  
below 3 psi.  
2. To adjust the water pressure, loosen the lock-  
nut on the pressure regulator.  
6. When the cook timer reaches 00:00 the buzz-  
er sounds and the display reads DONE.  
7. Push the START/STOP KEY (7) to turn the  
buzzer off.  
Turn the adjusting screw counter clockwise to  
decrease the water pressure.  
8. Remove the product.  
Turn the adjusting screw clockwise to in-  
crease the water pressure if it is below 3 psi.  
Oven Cool Down:  
NOTE: Increasing the water pressure will in-  
crease the amount of water injected  
during the humidaire cycle. Decreasing  
the pressure will decrease the water in-  
jected during the humidaire cycle.  
1. Turn the SELECTOR Switch (1) to COOL  
DOWN.  
NOTE: The doors may be opened to speed the  
cooling process.  
3. Reset the locknut on the regulator.  
4. Recheck the water pressure.  
Oven Shut Down:  
1. Turn the SELECTOR SWITCH (1) to OVEN OFF.  
WARNING!!  
The Humidaire Function:  
Setting the pressure above 3 psi will lead  
to excessive water in the oven.  
Moisture may be injected into the oven cavity at  
any time during the cook cycle.  
1. Press the HUMIDAIRE START SWITCH (13).  
Water injects into the oven cavity for 30 sec-  
onds. After the water stops injecting, the mo-  
tor automatically turns off for 30 seconds. This  
enables the moisture to saturate the product.  
Once the humidaire cycle is complete, the  
oven resumes normal operation.  
Water Pressure  
Adjustment  
Screw  
Locknut  
NOTE: The oven must be above 230_F  
(110_C) for humidaire to operate.  
Rear view of oven  
Figure 12  
17  
Operation  
CH-Pro3 (Solid State Programmable Digital Control)  
COMPONENT DESCRIPTION  
1. SELECTOR SWITCH --- controls power to the  
oven for high fan, low fan or cool down.  
2. TIME D ISPLAY --- gives cook time.  
1
3. TIME ARROW KEYS --- press to enter cook and/  
or pulse times.  
4. READY INDICATOR --- when lit indicates the  
oven has reached the setpoint temperature  
and product may be loaded.  
5. TEMPERATURE DISPLAY --- gives cook and  
hold temperatures.  
6. HEAT INDICATOR --- when lit indicates the  
oven is heating.  
7. TEMPERATURE ARROW KEYS --- press to en-  
ter cook and hold temperatures.  
8. HOLD KEY --- turns hold mode on or off.  
9. TEMP KEY --- press to display actual oven  
temperature.  
10. FAN KEY --- turns pulse mode on or off. The  
LED above the fan key is always on.  
11. PRODUCT KEYS --- three programmable keys.  
12. MANUAL PRODUCT KEY --- default product key  
used for manual operation.  
13. START KEY --- press to begin a cook cycle.  
2
4
5
3
7
6
8
10  
9
12  
15  
11  
13  
14. PROGRAM KEY --- press to enter program-  
ming mode and save programmed settings.  
15. STOP KEY --- press to silence audible alarms  
and cancel cook cycles.  
14  
16  
17  
16. LIGHTS SWITCH --- controls interior lights.  
17. CIRCUIT BREAKER SWITCH --- controls pow-  
er to the oven.  
Figure 13  
18  
Operation  
CH-Pro3 (Solid State Programmable Digital Control)  
MANUAL OPERATION  
When the oven reaches the hold temperature  
the time display resets to 00:00 then begins to  
NOTE: Press the arrow keys to change the cook  
time and temperature at any point during-  
manual operation.  
count up the hold time. The fan cycles with  
heat demand in the hold mode.  
8. Press the STOP KEY (15) to stop the timer.  
9. Remove the product.  
Cook Only:  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
10. Push the HOLD KEY (8) to turn off hold mode.  
2. Press the TIME ARROW KEYS (3) to enter the  
cook time.  
3. Press the TEMPERATURE ARROW KEYS (7)  
to enter the cook temperature.  
4. The READY INDICATOR (4) lights when the  
oven is at the set temperature. Load product  
into the oven.  
5. Press the START KEY (13). The TIME DISPLAY  
(2) counts down. The manual key LED flashes.  
6. When the cook time expires the LEDs and  
both displays flash and an audible alarm  
sounds. Press the STOP KEY (15) to silence  
the alarm.  
Cook with Pulse:  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
2. Press the TIME ARROW KEYS (3) to enter the  
cook time.  
3. Press the TEMPERATURE ARROW KEYS (7)  
to enter the cook temperature.  
4. Press the FAN KEY (10) for five seconds. The  
TEMPERATURE DISPLAY (5) goes blank. The  
fan key LED flashes. Use the TIME ARROW  
KEYS (3) to enter the pulse time.  
NOTE: Pulse time is a portion of the cook time  
and does not increase the previously  
entered cook time.  
7. Remove the product.  
5. Press the FAN KEY (10) again. The TEMPERA-  
TURE DISPLAY (5) lights.  
6. The READY INDICATOR (4) in the temperature  
display lights when the oven is at the set tem-  
perature. Load product into the oven.  
7. Press the START KEY (13). The manual key  
LED flashes. The TIME DISPLAY (2) counts  
down the cook time. The fan cycles on for 30  
seconds then off for 30 seconds until the set  
pulse time has expired.  
8. When the pulse time expires both displays  
flash and an audible alarm sounds. Press the  
STOP KEY (15) to silence the alarm.  
Cook with Hold:  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
2. Press the TIME ARROW KEYS (3) to enter the  
cook time.  
3. Press the TEMPERATURE ARROW KEYS (7)  
to enter the cook temperature.  
4. Press and hold the HOLD KEY (8) then re-  
lease. Use the TEMPERATURE ARROW KEYS  
(7) to enter the hold temperature. The hold key  
LED lights. Press the hold key again to exit the  
hold mode.  
5. The READY INDICATOR (4) lights when the  
oven is at the set temperature. Load product  
into the oven.  
6. Press the START KEY (13). The TIME DISPLAY  
(2) counts down. The manual key LED flashes.  
7. When the cook time expires both displays  
flash and an audible alarm sounds for several  
seconds then self cancels. The hold key LED  
flashes. The time display begins to count up  
while the oven cools to the hold temperature.  
9. Remove the product.  
Oven Cool Down:  
1. Turn the SELECTOR Switch (1) to COOL  
DOWN.  
NOTE: The doors may be opened to speed the  
cooling process.  
Oven Shut Down:  
1. Turn the SELECTOR SWITCH (1) to OVEN OFF.  
19  
Operation  
CH-Pro3 (Solid State Programmable Digital Control)  
PROGRAMMING THE MANUAL KEY DEFAULT  
PROGRAMMING THE PRODUCT KEYS  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
2. Press the MANUAL KEY (12). The manual and  
fan key LEDs light.  
2. Press the desired PRODUCT KEY (11). The  
product and fan key LEDs light.  
3. Press the TIME ARROW KEYS (3) to enter the  
cook time.  
4. Press the TEMPERATURE ARROW KEYS (7)  
to enter the cook temperature.  
5. For Cook and Hold --- Press and hold the  
HOLD KEY (8). Use the TEMPERATURE AR-  
ROW KEYS (7) to enter the hold temperature.  
The hold key LED lights. Press the hold key  
again to exit the hold mode.  
3. Press and hold the PROGRAM KEY (14) until  
the corresponding LED flashes, approximate-  
ly five seconds.  
4. Press the TIME ARROW KEYS (3) to enter the  
cook time.  
5. Press the TEMPERATURE ARROW KEYS (7)  
to enter the cook temperature.  
6. For Cook and Hold --- Press and hold the  
HOLD KEY (8). Use the TEMPERATURE AR-  
ROW KEYS (7) to enter the hold temperature.  
The hold key LED lights. Press the hold key  
again to exit the hold mode.  
For Cook with Pulse --- Press the FA N KEY  
(10). Use the TIME ARROW KEYS (3) to enter  
the pulse time. If no pulse is required, leave  
pulse time at 0:00. The fan key LED flashes.  
Press the fan key again to exit fan mode.  
For Cook with Pulse --- Press the FAN KEY  
(10). Use the TIME ARROW KEYS (3) to enter  
the pulse time. If no pulse is required, leave  
pulse time at 0:00. The fan key LED flashes.  
Press the fan key again to exit the fan mode.  
6. Press the PROGRAM KEY (14) to save the pro-  
gram settings.  
MANUAL KEY DEFAULT OPERATION  
7. Press the PROGRAM KEY (14) to save the pro-  
gram settings.  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
PRODUCT KEY OPERATION  
2. Press the MANUAL KEY (12). The applicable  
LEDs light.  
1. Turn the SELECTOR SWITCH (1) to the de-  
sired position.  
3. Press the START KEY (13). The TIME DISPLAY  
(2) counts down. The manual key LED flashes.  
2. Press the desired PRODUCT KEY (11). The  
applicable LEDs light.  
NOTE: In Cook with Pulse the fan LED flashes.  
3. Press the START KEY (13). The TIME DISPLAY  
(2) counts down. The product key LED flashes.  
NOTE: Press the arrow keys to change the  
cook time and temperature at any  
point during manual key operation.  
NOTE: In Cook with Pulse the fan LED flashes.  
4. When the cook or pulse time expires the appli-  
cable LEDs and both displays flash and an au-  
dible alarm sounds.  
4. When the cook time expires the applicable  
LEDs and both displays flash and an audible  
alarm sounds.  
5. Press the STOP KEY (15) to silence the alarm.  
5. Press the STOP KEY (15) to silence the alarm.  
NOTE: In Cook & Hold the alarm self cancels.  
The oven cools to the hold tempera-  
ture and the time display counts up.  
NOTE: In Cook & Hold the alarm self cancels.  
The oven cools to the hold tempera-  
ture and the time display counts up.  
6. Remove the product.  
6. Remove the product.  
7. Turn the SELECTOR SWITCH (1) to OFF to  
7. Turn the SELECTOR SWITCH (1) to OFF to  
shut down the oven.  
shut down the oven.  
20  
Operation  
Blodgett IQ2T Control  
COMPONENT DESCRIPTION  
1. OVEN POWER SWITCH --- controls power to  
the oven.  
2. TOP DISPLAY --- displays temperature and  
other controller related information.  
3. FAN HI LED --- when lit indicates the fan is run-  
ning at high speed.  
4. B OT TOM D ISPLAY --- displays cook time a nd  
other controller related information.  
1
2
20  
3
5. PROG LED --- when lit indicates the controller  
is in the programming mode.  
6. HEAT LED --- when lit indicates the control is  
calling for heat.  
4
6
7
5
12  
13  
14  
15  
8
7. FAN LO LED --- when lit indicates the fan is run-  
ning at low speed.  
8. COOL DOWN KEY --- press to enter the cool  
down mode.  
9. HOLD KEY --- press to enter hold mode.  
10. PROG KEY --- press to enter the programming  
mode.  
9
10  
11  
11. TOGGLE/CLEAR KEY --- press during pro-  
gramming to toggle options.  
16  
17  
12. ACT TEMP KEY --- press to display the actual  
oven temperature.  
13. SET TEMP KEY --- press to display the pro-  
grammed cook temperature for the current  
stage of the product key.  
14. ENTER KEY --- press to enter new values into  
product key programming. Also used to view  
recovery time.  
15. SCAN KEY --- completes the programming for  
the current parameter and advances the con-  
troller to the next parameter. Press to view time  
remaining on multiple cook cycles.  
16. PRODUCT LEDS --- when lit indicate which  
product keys are currently in use or pro-  
grammed for the current oven temperature  
and fan speed.  
18  
19  
17. PRODUCT KEYS --- assigns a key to a pro-  
grammed recipe and begins a programmed  
cooking process.  
18. SHELF KEYS --- assigns a shelf key.  
19. LIGHTS SWITCH --- controls interior lights.  
20. CIRCUIT BREAKER SWITCH --- controls pow-  
er to the oven.  
Figure 14  
21  
Operation  
Blodgett IQ2T Control  
OVEN OPERATION  
Oven Startup:  
ture and fan speed will light. If the se-  
lected product is a multiple stage rec-  
ipe no other product LEDS will light.  
1. Toggle the POWER SWITCH (1) to ON. The  
oven preheats to the lowest programmed first  
stage temperature. The LEDS (16) for all prod-  
ucts with the same first stage temperature light.  
NOTE: Press and hold the selected product  
key for three seconds to cancel the  
cook cycle for normal operation. To  
cancel the cook cycle when using  
shelf timing, press and hold the  
SHELF KEY (18) for 3 seconds or  
press TOGGLE/CLEAR (11) and the  
corresponding shelf key.  
While the unit preheats the TOP DISPLAY (2)  
gives the set temperature. The BOTTOM DIS-  
PLAY (4) reads Lo if the oven is more than 10_  
below setpoint. When the oven reaches ¦10_  
of the preheat temperature an alarm sounds  
and the bottom display reads Ready.  
3. When the cook time expires an alarm sounds  
and the top display reads donE.  
Single Product Cooking Procedure:  
4. Press the selected product key to silence the  
alarm. Remove the product. If shelf timing is  
used, press the flashing SHELF KEY (18) to si-  
lence the alarm.  
NOTE: If the led next to the desired product key is  
lit skip step 1.  
1. Press the desired PRODUCT KEY (17). The  
oven preheats to the first stage temperature for  
the selected product. When the oven reaches  
Multiple Batch Cooking Procedure:  
This procedure is for single stage recipes with the  
same cook temperature and fan speed only.  
¦10_ of the preheat temperature an alarm  
sounds and the bottom display reads Ready.  
NOTE: If the led next to the first desired product  
2. Load the product into the oven. Press the de-  
key is lit skip step 1.  
sired PRODUCT KEY (17).  
1. Press the first desired PRODUCT KEY (17).  
The LEDS for all recipes with the same cook  
temperature and fan speed will light.  
If the shelf timing function is toggled on for that  
product key, the top display reads SHLF and  
the bottom display reads the programmed  
product’s time. Press a SHELF KEY (18) to as-  
sign the product to that shelf and start the  
cook cycle. The top display reads SHLF, the  
bottom display gives the shelf #. Within five  
seconds, the top display reads SH-1, the bot-  
tom display gives the remaining cook time.  
The oven preheats to the cook temperaturefor  
the selected product. When the oven reaches  
¦10_ of the preheat temperature an alarm  
sounds and the bottom display reads Ready.  
2. Load the product into the oven. Press the de-  
sired PRODUCT KEY (17).  
If the shelf timing function is toggled on for that  
product key, the top display reads SHLF and  
the bottom display reads the programmed  
product’s time. Press a SHELF KEY (18) to as-  
sign the product to that shelf and start the  
cook cycle. The top display reads SHLF, the  
bottom display gives the shelf #. Within five  
seconds, the top display reads SH-1, the bot-  
tom display gives the remaining cook time.  
If the shelf timing function is toggled off for that  
product key, pressing the product key will  
start the cook cycle. The TOP DISPLAY (2)  
reads --- --- --- --- . The B OT TOM D ISPLAY (2)  
counts down the cook time in minutes: sec-  
onds.  
If the shelf timing function is toggled off for that  
product key, pressing the product key will  
start the cook cycle. The TOP DISPLAY (2)  
reads --- --- --- --- . The B OT TOM D I SPLAY (4)  
counts down the cook time in minutes: sec-  
onds.  
NOTE: If the selected product has a cook time  
of greater than 59:59 the top display  
r ead s Hr --- --- for the total number of  
hours. The bottom display counts down  
the cook time in minutes:seconds.  
NOTE: If the selected product is a single stage  
recipe the LEDS for all single stage  
products with the same cook tempera-  
22  
Operation  
Blodgett IQ2T Control  
3. Load the second product. Press the appropri-  
ate PRODUCT KEY (17). Press a SHELF KEY  
(18) to activate shelf timing.  
Oven Cool Down:  
1. Close the oven door. Press the COOL DOWN  
KEY (8).  
NOTE: Cool down cannot be activated with the  
oven door open. Once the cool down cycle  
has begun the doors may be opened to  
speed the cooling process.  
NOTE: Only products with lighted LEDS may  
be selected.  
4. The top display reads SHLF. The bottom dis-  
play gives the numbers of the shelves that  
have been assigned. Within five seconds the  
shelf with the least amount of time remaining  
is displayed. The led for the product with the  
least time remaining flashes faster than the led  
for the other products.  
NOTE: To view the remaining cook time for  
the other products press and hold the  
SCAN KEY (15). The bottom display  
cycles through the remaining cook  
times for each product. Only the led  
for the product with the cook time dis-  
played will be lit.  
5. When a cook time expires an alarm sounds.  
The top display reads donE. The led for the fin-  
ished product lights. All other LEDS are dark.  
6. Press the SHELF KEY (18) for the finished  
product to silence the alarm. Remove the  
product. Close the oven door. The TOP DIS-  
PLAY (2) reads SH-X for the shelf with the least  
amount of cook time. The BOTTOM DISPLAY  
(4) counts down the cook time for the other  
product.  
7. When the cook time expires an alarm sounds  
and the top display reads donE.  
8. Press the SHELF KEY (18) to silence the  
alarm. Remove the product.  
23  
Operation  
Blodgett IQ2T Control  
PROGRAMMING SINGLE STAGE RECIPES  
Entering the Programming Mode:  
Programming the Cook Temperature:  
1. The top display reads C t --- 1. The bottom dis-  
play gives the current cook temperature. Use  
the product keys to enter the desired cook  
temperature.  
2. Press the SCAN KEY (15) to advance the pro-  
gramming mode to fan speed.  
1. Press and hold the PROG KEY (10). The top  
display reads CodE.  
2. Use the product keys to enter the program-  
ming access code: 3 1 2 4. Press the ENTER  
KEY (14). The top display reads Prod.  
Programming the Fan Speed:  
3. Press the desired product key followed by the  
ENTER KEY (14).  
1. The top display reads SPd1. The bottom dis-  
play gives the current fan speed. Press the  
TOGGLE/CLEAR KEY (11). The bottom dis-  
play toggles between HI and Lo.  
NOTE: During the programming process you may:  
Press the TOGGLE/CLEAR KEY (11) to  
erase the current setting or toggle be-  
tween specific settings. Press the SCAN  
KEY (15) to move to the next programming  
function keeping the current setting the  
same. Press the PROG KEY (10) to exit the  
programming mode.  
2. Press the SCAN KEY (15) to advance the pro-  
gramming mode to the fan cycle time.  
Programming the Fan Cycle Time:  
There are 3 options for fan cycle time: Pulse, Heat  
and Full. Pulse allows the fan to turn on and off as  
programmed. Heat allows the fan to operate with  
heat only. Full provides continuous fan operation.  
Programming the Cook Time:  
1. The top display reads P1:__. The bottom dis-  
play gives the current programmed cook time  
for stage 1 in minutes:seconds. Press the  
TOGGLE/CLEAR KEY (11). Use the product  
keys to enter the new cook time. Press the EN-  
TER KEY (14) to save the new cook time.  
2. The top display reads P2:__. The control is  
asking for the cook time for stage 2 of this rec-  
ipe. Press the TOGGLE/CLEAR KEY (11) to  
enter a time of 0:00:00 for P2:.  
1. The top display reads CYC1. The bottom dis-  
play gives the current fan cycle. Press the  
TOGGLE/CLEAR KEY (11). The bottom dis-  
play toggles between PULS, HEAt and FULL.  
2. If heat or full are selected press the SCAN KEY  
(15) to save the new fan cycle and advance to  
timing mode.  
If pulse is selected press the SCAN KEY (15)  
and continue with Steps 3---4 to program the  
pulse cycle.  
NOTE: This tells the controller that there are  
no more stages for this recipe. Once  
a single stage recipe has been estab-  
lished the control will only allow en-  
tries for one stage on all further param-  
eters for this product.  
3. The top display reads on --- 1. The bottom dis-  
play gives the current pulse on time. Use the  
product keys to enter the desired pulse on  
time from 10 to 60 seconds. Press the SCAN  
KEY (15).  
3. Press the ENTER KEY (14) again. The top dis-  
play reads P1:. The bottom display shows the  
cook time.  
4. Press the SCAN KEY (15) to advance the pro-  
gramming mode to cook temperature.  
4. The top display reads of --- 1. The bottom dis-  
play gives the current pulse off time. Use the  
product keys to enter the desired pulse off  
time from 10 to 60 seconds. Press the SCAN  
KEY (15) to advance the programming mode  
to shelf mode.  
24  
Operation  
Blodgett IQ2T Control  
Programming the Shelf ID:  
Programming Hold Mode:  
The hold mode can be toggled on or off for specific  
product keys.  
The Shelf ID option can be turned on or off for spe-  
cific product keys.  
1. The top display reads HOLD. The bottom dis-  
play reads the current hold mode. Press  
TOGGLE/CLEAR KEY (11) to toggle between  
on and off. Press the SCAN KEY (15).  
2. If the hold mode is activated, the bottom dis-  
play give the current hold time. Press the  
TOGGLE/CLEAR KEY (11). Use the product  
keys to enter the new hold time. Press the  
SCAN KEY (15).  
NOTE: Shelf ID is not allowed with multiple stage  
recipes.  
1. The top display reads SHLF. The bottom dis-  
play reads the current shelf ID mode. Press  
the TOGGLE/CLEAR KEY (11) to toggle be-  
tween yes and no. Press the SCAN KEY (15)  
to advance the programming mode to timing.  
Programming the Timing Mode:  
3. The bottom display gives the current hold  
temperature. Press the TOGGLE/CLEAR KEY  
(11). Use the product keys to enter the new  
hold temperature from 140-210_F (60-99_C).  
Press the SCAN KEY (15).  
4. The top display reads HFAN (hold fan speed).  
The bottom display gives the current hold fan  
speed setting. Press the TOGGLE/CLEAR  
KEY (11) to toggle between high and low.  
Press the SCAN KEY (15) to exit the hold  
mode programming.  
There are 3 options for timing mode: Straight, Flex  
and Sensitivity.  
1. The top display reads tC --- 1. The bottom dis-  
play gives the current timing mode. Press the  
TOGGLE/CLEAR KEY (11) to toggle between  
St, FL and SEns.  
NOTE: Sensitivity adjusts the cook time to  
compensate for any difference be-  
tween the setpoint and actual temper-  
ature. The lower the sensitivity value  
the shorter the time adjustment. Sensi-  
tivity values are set in the manager lev-  
el programming.  
If Shelf ID is activated, all three timing modes  
are available. If Shelf ID is not activated, only  
straight or flex timing modes are available.  
Check all Settings (SEE Mode):  
The SEE mode allows the operator to scroll through  
and view settings of a particular product key.  
1. Press the PROG KEY (10). The top display  
reads Code.  
2. Press the SCAN KEY (15) to advance the pro-  
gramming mode to hold mode.  
2. Use the product keys to enter the SEE access  
code: 2 4 4 4. Press the ENTER KEY (14). The  
top display reads SEE.  
3. Press the product key you wish to view. Press  
the ENTER KEY (14).  
4. The control will automatically scroll through  
the programmable features showing the pro-  
grammed values for each.  
Exiting the programming mode:  
1. The top display reads Prod. Press the PROG KEY  
(10). The control returns to operating mode.  
25  
Operation  
Blodgett IQ2T Control  
PROGRAMMING MULTIPLE STAGE RECIPES  
Entering the Programming Mode:  
Programming the Cook Temperature:  
1. The top display reads C t --- 1. The bottom dis-  
play gives the current cook temperature for  
stage 1 of this recipe. Use the product keys to  
enter the desired cook temperature.  
2. Press the ENTER KEY (14) to save the new  
cook temperature for stage 1. The top display  
reads Ct --- 2.  
1. Press and hold the PROG KEY (10). The top  
display reads CodE.  
2. Use the product keys to enter the program-  
ming access code: 3 1 2 4. Press the ENTER  
KEY (14). The top display reads Prod.  
3. Press the desired product key followed by the  
NOTE: Repeat Steps 1---2 to program the  
cook temperature for additional  
stages. When the cook temperature  
for the final stage has been entered  
the top display reads Ct---1.  
ENTER KEY (14).  
Programming the Cook Time:  
NOTE: When multiple stage cooking is being  
used, the countdown time displayed dur-  
ing cooking is the sum of all stages.  
3. Press the SCAN KEY (15) to advance the pro-  
gramming mode to fan speed  
1. The top display reads P1:__. The bottom dis-  
play gives the current programmed cook time  
for stage 1 in minutes:seconds. Press the  
TOGGLE/CLEAR KEY (11). Use the product  
keys to enter the new cook time. Press the EN-  
TER KEY (14) to save the new cook time.  
Programming the Fan Speed:  
1. The top display reads SPd1. The bottom dis-  
play gives the current fan speed. Press the  
TOGGLE/CLEAR KEY (11). The bottom dis-  
play toggles between HI and Lo.  
2. The top display reads P2:__. The control is  
asking for the cook time for the second stage  
of this recipe. Repeat Step 1 for each addition-  
al stage.  
2. Press the SCAN KEY (15) to advance the pro-  
gramming mode to the fan cycle time.  
3. When the cook times for all stages are pro-  
grammed, press the TOGGLE/CLEAR KEY  
(11) to clear the bottom display.  
NOTE: This tells the controller that there are  
no more stages for this recipe. Once  
the number of stages has been estab-  
lished the control will only allow en-  
tries for these stages on all further pa-  
rameters for this product.  
4. Press the ENTER KEY (14) again. The display  
reads P1:. The bottom display shows the cook  
time.  
5. Press the SCAN KEY (15) to advance the pro-  
gramming mode to cook temperature.  
26  
Operation  
Blodgett IQ2T Control  
Programming the Fan Cycle Time:  
Programming the Timing Mode:  
NOTE: It may be necessary to press the ENTER  
KEY (14) until the top display reads tC---1.  
There are 3 options for fan cycle time: Pulse, Heat  
and Full. Pulse allows the fan to turn on and off as  
programmed. Heat allows the fan to operate with  
heat only. Full provides continuous fan operation.  
There are 2 options for timing mode: Straight and  
Flex.  
1. The top display reads CYC1. The bottom dis-  
play gives the current fan cycle for stage 1.  
Press the TOGGLE/CLEAR KEY (11). The bot-  
tom display toggles between PULS, HEAt and  
FULL.  
1. The top display reads tC --- 1. The bottom dis-  
play gives the current timing mode. Press the  
TOGGLE/CLEAR KEY (11) to toggle between  
St, and FL.  
2. Press the ENTER KEY (14) to save the new  
timing mode for stage 1. The top display reads  
tC --- 2.  
NOTE: Repeat Steps 1---2 to program the tim-  
ing mode for additional stages.  
3. When the timing mode for the final stage has  
been entered press the SCAN KEY (15).  
2. Press the ENTER KEY (14) to save the new fan  
cycle for stage 1. The top display reads CYC2.  
NOTE: Repeat Steps 1---2 to program the fan  
cycle for additional stages.  
3. When the fan cycle for the final stage has been  
entered press the SCAN KEY (15).  
If no pulse cycles are programmed the control  
advances to timing mode.  
Programming Hold Mode:  
The hold mode can be toggled on or off for specific  
product keys.  
If pulse is used, the control returns to the first  
stage programmed for the pulse fan option.  
Follow Steps 4---5 to program the pulse on  
and off time.  
1. The top display reads HOLD. The bottom dis-  
play reads the current hold mode. Press  
TOGGLE/CLEAR KEY (11) to toggle between  
on and off. Press the SCAN KEY (15).  
2. The bottom display give the current hold time.  
Press the TOGGLE/CLEAR KEY (11). Use the  
product keys to enter the new hold time. Press  
the SCAN KEY (15).  
3. The bottom display gives the current hold  
temperature. Press the TOGGLE/CLEAR KEY  
(11). Use the product keys to enter the new  
hold temperature from 140-210_F (60-99_C).  
Press the SCAN KEY (15).  
4. The top display reads HFAN (hold fan speed).  
The bottom display gives the current hold fan  
speed setting. Press the TOGGLE/CLEAR  
KEY (11) to toggle between high and low.  
Press the SCAN KEY (15) to exit the hold  
mode programming.  
4. The top display reads on --- x . The bottom dis-  
play gives the current pulse on time for this  
stage. Use the product keys to enter the de-  
sired pulse on time from 10 to 60 seconds.  
Press the SCAN KEY (15).  
5. The top display reads of --- x . The bottom dis-  
play gives the current pulse off time. Use the  
product keys to enter the desired pulse off  
time from 10 to 60 seconds. Press the SCAN  
KEY (15). The control advances to the next  
stage programmed for the pulse fan option.  
NOTE: Repeat Steps 4---5 to program cycle  
times for all pulse fan stages. When the  
final pulse off time has been entered the  
control advances to timing mode.  
Exiting the programming mode:  
1. The top display reads Prod. Press the PROG  
KEY (10). The control returns to operating  
mode.  
27  
Operation  
Blodgett IQ2T Control  
MANAGER LEVEL PROGRAMMING  
Entering the programming mode  
Programming the setback mode  
The setback mode operates as a power saving  
feature. After a period of non-use (the setback  
time) the oven temperature automatically de-  
creases to the setback temperature. The oven will  
maintain this temperature until a product key is  
pressed. The minimum setback time is 20:00.  
1. Press the PROG KEY (10). The top display  
reads CodE.  
2. Use the product keys to enter the program-  
ming access code: 4 5 1 2. Press the ENTER  
KEY (14). The top display reads SYS.  
1. The top display reads SEtb. The bottom dis-  
play gives the setback mode. To change the  
setback press the TOGGLE/CLEAR KEY (11).  
The bottom display toggles between YES and  
no. Press the SCAN KEY (15).  
Programming hold  
Hold allows product to be kept warm in the oven  
at a programmed time and temperature by press-  
ing the HOLD KEY (9).  
If no is chosen:  
a) The controller advances to programming  
the temperature mode.  
1. Press the SCAN KEY (15). The top display  
reads Hold. Press the TOGGLE/CLEAR KEY  
(11) to toggle between YES and no. Press the  
SCAN KEY (15).  
If yes is chosen:  
a) The bottom display gives the current set-  
back time. Press the TOGGLE/CLEAR  
KEY (11). Use the product keys to the en-  
ter the desired setback time. Press the  
SCAN KEY (15) to enter the new setback  
time.  
b) The bottom display gives the current set-  
back temperature. Press the TOGGLE/  
CLEAR KEY (11). Use the product keys to  
the enter a setback temperature from  
140_F --- 300_F. Pr e s s t h e S C A N K E Y ( 1 5 ) t o  
enter the new setback and continue with  
programming the temperature mode.  
If no is chosen:  
a) Press the SCAN KEY (15) to advance to  
programming the setback mode.  
If yes is chosen:  
a) The top display reads HOLD. The bottom  
display gives the current hold time. Press  
the TOGGLE/CLEAR KEY (11). Use the  
product keys to enter a hold time from 0  
to 9 hours. Press the SCAN KEY (15) to  
enter the new hold time (HR:MN)..  
b) The top display reads HOLD. The bottom  
display gives the current hold tempera-  
ture. Press the TOGGLE/CLEAR KEY (11).  
Use the product keys to enter a hold tem-  
perature from 140_F --- 210_F. Pr e s s t h e  
SCAN KEY (15) to enter the new hold tem-  
perature.  
c) The top display reads H FAn. The bottom  
display gives the current fan mode. To  
change the fan mode press the TOGGLE/  
CLEAR KEY (11). The bottom display  
toggles between Hi and Lo. Press the  
SCAN KEY (15) to enter the new fan mode  
and continue with programming the set-  
back mode.  
Programming the temperature mode (_F or _C)  
1. The top display reads dEg. The bottom dis-  
play gives the units. To change the units press  
the TOGGLE/CLEAR KEY (11). The bottom  
display toggles between F and C.  
2. Press the SCAN KEY (15) to enter the new  
temperature units and continue programming  
the shelf sensitivity.  
28  
Operation  
Blodgett IQ2T Control  
Programming the shelf sensitivity  
ERROR CODES AND ALARMS  
The controller allows the user to program a sensi-  
tivity value (0---9) for each shelf position. The sen-  
sitivity value will shorten or stretch cook time de-  
pending upon shelf position.  
NOTE: The error codes will appear in the top dis-  
play. All error codes are accompanied by  
an audible alarm.  
Hi  
Oven temperature is more than  
40_F above the highest setpoint.  
NOTE: SEN1 is the top shelf position, SEN5 is the  
bottom shelf position.  
Prob  
Probe failure.  
1. The display reads SEN1.  
HEAT ERR From a cool start (below 140_F), the  
oven takes more than 10 minutes to  
climb from 150-300_F. Pr e s s t h e  
TOGGLE/CLEAR KEY (11) to clear  
the prompt. This code indicates a  
problem with the system. Contact a  
service technician.  
2. Press the TOGGLE/CLEAR KEY (11) to clear  
the current value to the desired value. Use the  
product key numbers to input a new sensitivity  
value.  
3. Press the SCAN KEY (15) to advance to the  
next shelf position, SEN2.  
FAN ERR  
Indicates a fan failure during a call  
for heat. Press the TOGGLE/CLEAR  
KEY (11) to clear the alarm. The FAN  
ERR display remains active. Press  
the TOGGLE/CLEAR KEY (11) again  
to clear the message and return the  
system to normal operation. If con-  
dition persists turn off the oven and  
contact a service technician.  
4. Repeat steps 2---3 for all five shelf positions.  
Exiting the programming mode  
1. The top display reads SYS. Press the PROG  
KEY (10). The control returns to the operating  
mode.  
FANC ERR Indicates a contact failure has oc-  
curred in the fan control circuit.  
Press the TOGGLE/CLEAR KEY(11)  
to clear the alarm. The FANC ERR  
display remains active. Press the  
TOGGLE/CLEAR KEY (11) again to  
clear the message and return the  
system to normal operation. If con-  
dition persists turn off the oven and  
contact a service technician.  
DOOR OPEN The controller senses the door is  
open. Close the door. If the door is  
closed contact a service technician.  
29  
Operation  
General Guidelines for Operating Personnel  
COOK TIMES AND TEMPERATURES  
Preheating the oven  
OPERATING TIPS  
Pans and Racks  
Always preheat the oven before baking or roast-  
ing. We recommend preheating 50_F (10_C)  
above the cook temperature to offset the drop in  
temperature when the doors are opened and cold  
product is loaded into the oven. Set the thermostat  
to the cook temperature after the product is  
loaded.  
Product or pan height determines how many  
racks are used. The oven holds up to 10 18” x 26”  
(45.7 x 66.0 cm) bun pans.  
Load the oven from the bottom, centering thepans  
on the rack. Never place a pan or aluminum foil on  
the bottom of the oven. This obstructs the flow of  
air and results in uneven baking and roasting.  
NOTE: For frozen product, preheat the oven  
100_F (38_C) above the cook tempera-  
ture.  
Roasting  
To reduce shrinkage when roasting, place meat  
directly on the racks. Place a sheet pan one-half  
full of water in the bottom rack position. The water  
evaporates, increasing humidity in the oven  
chamber. The pan catches grease from the meat,  
making oven cleaning easier.  
Cook Temperatures  
Generally, cook temperatures should be 50_F  
(10_C) lower than deck or range oven recipes. If  
the edges of the product are done but the center  
is raw, or if there is color variation, reduce the ther-  
mostat setting another 15---25_F (10---15_C). Con-  
tinue to reduce the cook temperature on succes-  
sive loads until the desired results are achieved.  
Baking  
Weigh the product to ensure equal distribution in  
each pan. Varying amounts of product will cause  
uneven baking results.  
NOTE: Cooking at excessive temperatures will  
not reduce cook time, it will produce un-  
satisfactory baking and roasting results.  
Fans  
The fan must be operating for the oven to heat.  
Use the Pulse Plus feature to allow light or liquid  
product to set in the pan and to avoid rippling to-  
wards the fan. If your oven is not equipped with  
this feature use the following procedure.  
Cook Time  
Check the product in about half the time recom-  
mended for deck or range oven recipes. Record  
times and temperatures which provide best re-  
sults for future reference.  
1. Preheat the oven 25_F (15_C) above the bak-  
ing temperature.  
NOTE: Cook time will vary with the amount of  
product loaded, the type of pan and the  
temperature.  
2. Load the oven with product. Close the doors.  
3. Set the thermostat to the baking temperature.  
4. Turn the oven off.  
5. Allow the product to set for 5---7 minutes with  
the fan off. The residual heat in the oven sets  
the product.  
6. Turn the oven on for the remainder of thebake.  
Lights  
Turn the oven lights off when not viewing the prod-  
uct. Leaving the lights on for extended periods of  
time shortens the bulb life considerably.  
30  
Maintenance  
Cleaning and Preventative Maintenance  
DAILY CLEANING  
5. Wipe around the fan with a damp towel.  
6. Soak racks, supports and baffle in a solution  
of non-toxic, non-caustic, food safe, commer-  
cial oven cleaner. Allow to soak overnight if  
necessary.  
Oven Cool Down:  
1. Turn the oven to COOL DOWN.  
NOTE: The doors may be opened to speed the  
cooling process.  
7. Reinstall parts.  
Cleaning the exterior  
Clean temperature probe  
1. Saturate a cloth with a mild soap and water  
mixture. Wipe the oven when it is cold.  
2. Dry the oven with a clean cloth.  
3. Heat tint and heavy discoloration may be re-  
moved with any non-toxic, non-caustic, com-  
mercial oven cleaner and stainless steel polish.  
1. Use a damp towel to wipe the probe. Handle  
with care.  
Clean cooling fan  
1. Brush off the cooling fan located on the back  
of the oven behind the control compartment.  
PREVENTATIVE MAINTENANCE  
Annual Maintenance  
Cleaning the interior  
Deposits of baked on splatter may be removed with  
any non-toxic, non-caustic, food safe, commercial  
oven cleaner.  
The following checks should be part of an annual  
scheduled maintenance. This maintenancemust  
be performed by an authorized service agency.  
Contact your local Blodgett service company, a  
factory representative or the Blodgett Oven com-  
pany.  
1. Apply cleaner following the manufacturer’s di-  
rection. Always rub with the grain of the metal.  
WEEKLY CLEANING  
1. Remove any loose debris or particle buildup  
from the racks, rack supports, baffle, blower  
wheel and temperature probe.  
1. Check venting system.  
2. Check temperature calibration.  
3. Adjust and grease door switch for proper clo-  
sure.  
MONTHLY CLEANING  
4. Clean any debris out of control tray. Check for  
loose connections. Replace any discolored  
connections.  
5. Retorque all electrical connections between  
the element and contactors.  
Clean racks, rack supports, baffle and blower  
wheel  
1. Remove the racks, rack supports and baffle.  
2. Hold the blower wheel with a gloved hand.  
3. Use an L-shaped brush to clean the fins on the  
blower wheel.  
WARNING!!  
4. Use a hand brush to clean the center portion  
of the blower wheel.  
Always disconnect the appliance from the  
power supply before servicing or cleaning.  
31  
Maintenance  
Troubleshooting Guide  
POSSIBLE CAUSE(S)  
SUGGESTED REMEDY  
SYMPTOM: Heating elements do not come on.  
S Oven not plugged in.  
S Plug in electrical supply cord.  
S Set the control panel to COOK or OVEN ON.  
S Set to desired cook temperature.  
S Close doors.  
S Power switch on the control panel is off.  
S Control set below ambient temperature.  
S Doors are open.  
S Computerized controls --- error code on display. S *  
SYMPTOM: Oven does not come to ready.  
S The oven has not reached preheat temperature. S Wait for oven to reach preheat temperature.  
S Fan delay feature may be activated, ifapplicable. S Deactivate fan delay feature.  
S Internal problem with main temperature control. S *  
SYMPTOM: Convection fan does not run.  
S Oven is not plugged in.  
S Plug in electrical supply cord.  
S Set the control panel to COOK or OVEN ON.  
S Reset the breaker.  
S Oven is not set to the cook mode.  
S Circuit breaker tripped.  
S Fan delay feature may be activated, ifapplicable. S Deactivate fan delay feature.  
S Doors are open  
S Close doors.  
SYMPTOM: General baking problems.  
S Computerized controls --- incorrect product  
S Reprogram control per Operation section.  
programming.  
S Thermostat out of calibration.  
S *  
*Denotes remedy is a difficult operation and should be performed by qualified personnel only. It is recommended, however, that  
All repairs and/or adjustments be done by your local Blodgett service agency and not by the owner/operator. Blodgett cannot as-  
sume responsibility for damage as a result of servicing done by unqualified personnel.  
WARNING!!  
Always disconnect the power supply before cleaning or servicing the oven.  
32  
CUSTOMER  
INSERT  
WIRING DIAGRAM  
HERE  

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