Blodgett KLS-100G User Manual
DFG-50
CONVECTION OVEN
INSTALLATION - OPERATION - MAINTENANCE
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802)864-0183
PN 17355 Rev T (3/14)
© 2014 - G.S. Blodgett Corporation
Your Service Agency’s Address:
Model
Serial number
Oven installed by
Installation checked by
IMPORTANT
TABLE OF CONTENTS
WARNING: Improper installation, adjustment, alternation,
service or maintenance can
cause property damage, injury or death. Read the instllation, operation and maintenance instructions thoroughly
before installing or servicing
this equipment.
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE
USER SMELLS GAS MUST BE
POSTED IN A PROMINENT LOCATION. This information may
be obtained by contacting your
local gas supplier.
FOR YOUR SAFETY
Do not store or use gasoline or
other ammable vapors or liquids in the vicinity of this or any
other appliance.
The information contained in this
manual is important for the proper installation, use, and maintenance of this oven. Adherence
to these procedures and instructions will result in satisfactory
baking results and long, trouble free service. Please read
this manual carefully and retain
it for future reference.
ERRORS: Descriptive, typographic or pictorial errors are
subject to correction. Specications are subject to change
without notice.
INSTALLATION
Oven Description and Specications ....................................... 2
Delivery and Location .................................................... 3
Stand Assembly.......................................................... 4
Oven Assembly .......................................................... 6
Oven Assembly to Stand .............................................. 6
4” (10cm) Leg Attachment ............................................. 7
Caster Installation .................................................... 7
Oven leveling ........................................................ 7
Ventilation ............................................................... 8
Utility Connections - Standards and Codes ................................ 10
Gas Connection......................................................... 11
Gas Piping.......................................................... 11
Pressure Regulation and Testing ...................................... 12
Gas Hose Restraint ................................................. 13
Electrical Connection .................................................... 14
Initial Startup ........................................................... 15
OPERATION
Safety Information ....................................................... 16
Solid State Manual Control ............................................... 17
Solid State Digital Control ................................................ 18
CH-Pro3 (Solid State Programmable Digital Control) ....................... 20
Blodgett IQ2™ Vision Control ............................................ 23
How Cook & Hold Works ................................................. 33
General Guidelines for Operating Personnel ............................... 34
Suggested Times and Temperatures ...................................... 35
MAINTENANCE
Cleaning and Preventative Maintenance .................................. 36
Troubleshooting Guide .................................................. 37
Installation
Oven Description and Specications
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 continually strips away
the layer of cool air surrounding the product, quickly allowing the heat to penetrate. The result is a high qual-
ity product, cooked at a lower temperature in a shorter
amount of time.
GAS RATINGS - DFG-50
Natural Gas Propane
US Units SI Units US Units SI Units
U.S., Canada and General Export
Heating Value 1000 BTU/cu.ft. 37.3 MJ/m3 2550 BTU/cu. ft. 95.0 MJ/m3
Specic Gravity (air=1.0) 0.63 0.63 1.53 1.53
Gas Manifold Pressure 3.5” W.C. .87 kPa 10” W.C. 2.49 kPa
Oven Input 27,500 BTU/hr
34,500 BTU/hr
Main Burner Orice Size 38 MTD*
32 MTD*
Pilot Burner Orice Size .021” dia. .55 mm .011” dia. .28 mm
Australia
Oven Input — 32 MJ — 32 MJ
Main Burner Orice Size 38 MTD* 2.6 mm 1/16” dia. 1.6 mm
Gas Manifold Pressure — .87 kPa — 2.49 kPa
NOTE: * - Multiple Twist Drill
Blodgett convection ovens represent the latest advancement in energy efciency, reliability, and ease of operation. Heat normally lost, is recirculated within the cooking
chamber before being vented from the oven: resulting in
substantial reductions in energy consumption and enhanced oven performance.
8.1 kW
10.1 kW
2.6 mm
2.9 mm
27,500 BTU/hr
34,500 BTU/hr
1/16” dia.
50 MTD*
8.1 kW
10.1 kW
1.6 mm
1.75 mm
2
Installation
Delivery and Location
DELIVERY AND INSPECTION
All Blodgett ovens are shipped in containers to prevent
damage. Upon delivery of your new oven:
• Inspect the shipping container for external damage.
Any evidence of damage should be noted on the
delivery receipt which must be signed by the driver.
• Uncrate the oven and check for internal damage.
Carriers will accept claims for concealed damage if
notied within fteen days of delivery and the shipping container is retained for inspection.
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 ling a claim is necessary.
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 between
the oven and any combustible or non-combustible construction.
• Oven body right side - 6” (15 cm)
It is essential that an adequate air supply to the oven be
maintained to provide a sufcient ow of combustion and
ventilation air.
• Place the oven in an area that is free of drafts.
• Keep the oven area free and clear of all combus-
tibles such as paper, cardboard, and ammable
liquids and solvents.
• Do not place the oven on a curb base or seal to
a wall. This will restrict the ow of air and prevent
proper ventilation. Tripping of the blower motor’s
thermal overload device is caused by an excessive
ambient temperature on the right side of the oven.
This condition must be corrected to prevent permanent damage to the oven.
• The location must provide adequate clearance for
the air opening into the combustion chamber.
Before making any utility connections to this oven, check
the rating plate to be sure the oven specications are
compatible with the gas and electrical services supplied
for the oven.
1. Pull out control panel. The rating plate attached to the
inside of the control compartment.
• Oven body left side - 6” (15 cm)
• Oven body back - 6” (15 cm)
• Oven body bottom - 6” (15 cm)
The following clearances must be available for servicing.
• Oven body sides - 12” (30 cm)
• Oven body back - 12” (30 cm)
NOTE: On gas models, routine servicing can usually be
accomplished within the limited movement provided by the gas hose restraint. If the oven needs
to be moved further from the wall, the gas must
rst be turned off and disconnected from the oven
before removing the restraint. Reconnect the restraint after the oven has been returned to its normal position.
3
Installation
Stand Assembly
STAND OPTIONS
Small Stands Without Shelves
• The 5-3/4” (15cm) stand is used for a single oven,
when short legs are required for countertop use.
• The 7” (18cm) stand is used for a double stacked
oven, when the oven is to be located on the oor.
Stands With Shelves
• Three stands, 16” (40cm), 19” (48cm), and 24”
(61cm) are available for different installation require-
ments.
• The 33” (84cm) stand is used for a single oven when
counter space is limited.
Open Stands With Racks
• The 24” (61cm) or 33” (84cm) open stands are available with a rack support system located below the
oven.
STAND ASSEMBLY
Small Stands Without Shelves
1. Place stand frame upside down on a work surface.
Stands With Shelves
1. Place stand frame upside down on a work surface.
2. Attach one leg to each of the corner stud bolts on the
bottom of the stand top.
3. Place a lock washer and nut on each bolt, and tighten. DO NOT tighten leg bolts completely.
4. Place the shelf between the legs so that the smooth
top surface is facing the top of the stand.
5. Align the shelf holes with the bolt holes found near
the bottom of each leg.
6. Insert a carriage bolt from the outside of the leg,
through the leg, and through the shelf corner bracket.
7. Place a lock washer and nut on each bolt, and tighten
securely.
8. Tighten the leg frame bolts.
2. Attach one leg to each of the corner stud bolts on the
bottom of the stand top.
3. Place a lock washer and nut on each stud, and tighten securely.
Figure 1
4
Open Stands With Shelves and Racks
1. Place stand frame upside down on a work surface.
2. Attach one leg to each of the corner stud bolts on the
bottom of the stand top.
3. Place a lock washer and nut on each bolt, and tighten. DO NOT tighten leg bolts completely.
Installation
Stand Assembly
7. Insert a carriage bolt from the outside of the leg,
through the leg, and through the shelf corner bracket.
8. Place a lock washer and nut on each bolt, and tighten
securely.
9. Repeat Steps 5-8 for the top shelf.
4. Attach the rack support angles to the stud bolts on the
bottom of the stand top with the nuts provided.
Each support angle has 2 clips on one end and 1 clip
on the other end. The two clips should be at the back
of the stand facing toward the center.
IMPORTANT - Be sure the support angles and
clips are located correctly for your oven conguration as shown.
5. Position the bottom shelf between the legs so that the
smooth top surface is facing the top of the stand.
6. Align the shelf holes with the bolt holes found near
the bottom of each leg.
Proper Location of Support Angles
Underside of Stand Top
Clips
Rear of
Stand
Left
Support
Angle
Right
Support
Angle
NOTE: Be sure the slots in the top shelf are aligned
with the support angles.
10. Insert the top of the rack stops into the two back clips
on the angle supports as shown. Insert the bottom of
the rack stops into the slots in the top shelf as shown.
11. Insert the rack supports into the remaining four clips
on the angle supports as shown. Insert the bottom
of the rack supports into the slots in the top shelf as
shown.
12. Tighten all loose bolts.
Clips
Support Angle
Rack Stop
Top Shelf
(rear)
Figure 2
5
Rack
Support
Attach Rack Supports
and Rack Stops
Installation
Oven Assembly
OVEN ASSEMBLY TO STAND
Single Section
1. Place the assembled stand in the location where the
oven is going to be used.
2. Remove the side control compartment cover and
open the front control panel of a single oven (or lower
section).
Double Section
1. Assemble the lower section to the stand as described.
DO NOT replace the side control compartment or
close the front control panel.
2. With a tool, punch out the knock-outs in the oven top
of the lower oven.
3. With a tool, punch out the knock-outs in the oven bottom near each corner.
4. Set the oven on the stand. Center it to the frame.
5. Align the front, and rear bolt holes of the oven with the
bolt holes in the stand.
6. Insert a bolt and washer, from the top down through
each of the 2 holes.
7. Place a nut and washer on each of the 2 bolts, and
tighten securely.
8. Replace the oven’s side control compartment, and
close the front control panel.
NOTE: For single section ovens only. For double
stacked ovens this step will be completed
once the ovens are stacked.
3. Remove the side control compartment cover and
open the front control panel of the upper oven.
4. With a tool, punch out the knock-outs in the bottom of
the upper oven near each corner.
5. Set the upper oven on the lower oven.
6. Align the front, and rear bolt holes of the upper oven
with the bolt holes in the bottom oven.
7. Insert a bolt and washer, from the top down through
each of the 2 holes.
8. Place a nut and washer on each of the 2 bolts, and
tighten securely.
9. Replace the control compartment cover, and close
the front control panel on both of the ovens.
Figure 3
Figure 4
6
Installation
Oven Assembly
4” (10CM) LEG ATTACHMENT
1. Lay the oven on its side.
2. Screw one leg into each of the corner nuts.
Figure 5
CASTER INSTALLATION
NOTE: Casters are not supplied for the 4” (10cm) legs,
5-3/4” (15cm) or 7” (18cm) stands.
NOTE: Install the locking casters on the front of the oven.
Install the non-locking casters on the back of the
oven.
1. Insert the caster into the leg. Secure the caster to the
leg by tightening the locknut.
Figure 6
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.
7
Installation
Ventilation
On gas models the installation of a proper ventilation sys-
tem cannot be over emphasized. This system removes
unwanted vapors and products of combustion from the
operating area.
This oven may be vented using either:
• A mechanically driven, canopy type, exhaust hood,
or
• A direct ue arrangement.
U.S. and Canadian installations
Refer to your local ventilation 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.
Australia and General Export installations
Installation must conform with Local and National instal-
lation 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 distributor, please call the Blodgett Oven Company
at 0011-802-658-6600.
CANOPY TYPE EXHAUST HOOD
A mechanically driven, canopy type exhaust hood is the
preferred method of ventilation.
The hood should be sized to completely cover the equipment plus an overhang of at least 6” (15 cm) on all sides
not adjacent to a wall. The distance from the oor to the
lower edge of the hood should not exceed 7’ (2.1m).
The total makeup and exhaust air requirements for hood
capacity should be approximately 19 CFM for each oven
section.
Installing the canopy hood draft diverter
Ovens ordered for hood venting are supplied with a draft
diverter. Install the draft diverter as follows:
1. Place the diverter over the ue connector with the
open area facing the right side of the oven.
2. Secure with the sheet metal screws provided.
Draft Diverter
WARNING:
Failure to properly vent the oven can be hazardous to the health of the operator and may
result in operational problems, unsatisfactory
baking and possible damage to the equipment.
Damage sustained as a direct result of improper ventilation will not be covered by the
manufacturer’s warranty.
Front of Oven
Figure 7
8
Installation
Ventilation
DIRECT FLUE ARRANGEMENT
When the installation of a mechanically driven exhaust
hood is impractical the oven may be vented by a direct
ue arrangement.
WARNING!!
It is essential that the direct ue be installed
as follows. Incorrect installation will result in
unsatisfactory baking and oven damage.
The ue must be class B or better with a diameter of 6”
(15 cm). The height of the ue should rise 6-8 ft (2-2.5 m)
above the roof of the building or any proximate structure.
Never direct vent the oven into a hood. The ue should
be capped with a UL Listed type vent cap to isolate the
unit from external environmental conditions.
The direct vent cannot replace air consumed and vented
by the oven. Provisions must be made to supply the room
with sufcient make-up air. Total make-up air requirements for each oven section should be approximately 19
CFM per section. To increase the supply air entering the
room, a ventilation expert should be consulted.
Installing the draft hood
Ovens ordered for direct venting are supplied with a draft
hood. Install the draft hood as follows:
1. Place the draft hood over the ue connector.
2. Secure both ends with the sheet metal screws provided.
Flue
Draft Hood
Front of Oven
Figure 8
9
Installation
Utility Connections - Standards and Codes
THE INSTALLATION INSTRUCTIONS CONTAINED
HEREIN ARE FOR THE USE OF QUALIFIED 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.
Qualied installation personnel are individuals, a rm,
a corporation, or a company which either in person or
through a representative are engaged in, and responsible
for:
• the installation or replacement of gas piping and the
connection, installation, repair or servicing of equip-
ment.
• the installation of electrical wiring from the electric
meter, main control box or service outlet to the electric appliance.
Qualied installation personnel must be experienced in
such work, familiar with all precautions required, and have
complied with all requirements of state or local authorities
having jurisdiction.
U.S. and Canadian installations
The installation must conform with local codes, or in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54, or the Natural Gas and Propane
Installation Code, CSA B149.1, as applicable.
Installation must conform with local codes, or in the absence of local codes, with the National Electrical Code,
ANSI/NFPA 70-Latest Edition and/or Canadian National
Electric Code C22.1 as applicable.
Appliance is to be installed with backow prevention in
accordance with applicable federal, province and local
codes.
Australia and general export installations
Instllation must conform with Local and National instal-
lation 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 distributor, please call the Blodgett Oven Company
at 0011-802-658-6600.
10
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