Blodgett DZ33I Installation Manual
DZ33I, English
OWNER’S OPERATING
& INSTALLATION
MANUAL
CTX GEMINI SERIES OVENS
DZ33I
CTX ® 1400 Toast Master Drive Elgin, IL. 60120 847-741-3300
A Middleby Company www.middleby.com
Part No. 69982
7/1/13
Model No._________________Serial No.__________________________Installation Date________
CTX®
NO QUIBBLE LIMITED WARRANTY
(U.S.A ONLY)
MIDDLEBY MARSHALL HEREINAFTER REFERRED TO AS THE SELLER, WARRANTS
EQUIPMENT MANUFACTURED BY IT TO BE FREE FROM DEFECTS IN MATERIAL AND
WORKMANSHIP FOR WHICH IT IS RESPONSIBLE. THE SELLER’S OBLIGATRION UNDER THIS
WARRANTY SHALL BE LIIIMITED TO REPLACING OR REPAIRING AT SELLER’S OPTION,
WITHOUT CHARGE, ANY PART FOUND TO BE DEFECTIVE AND ANY LABOR AND MATERIAL
EXPENSE INCURRED BY SELLER IN REPAIRING OR REPLACING SUCH PART, SUCH
WARRANTY SHALL BE LIMITED TO THE ORIGINAL PURCHASER ONLY AND SHALL BE
EFFECTIVE FOR A PERIOD OF ONE YEAR FROM DATE OF ORIGINAL INSTALLATION, OR 18
MONTHS FROM DATE OF SHIPMENT, WHICHEVER IS EARLIER; PROVIDED THAT TERMS OF
PAYMENT HAVE BEEN FULLY MET.
This warranty is valid only if the equipment is installed, started and demonstrated under the
supervision of a factory certified installer.
Normal maintenance functions, including lubrication, cleaning or customer abuse are not covered by
this no quibble warranty.
Seller shall be responsible only for repairs or replacements of defective parts performed by Seller’s
authorized service personnel. Authorized service agencies are located in principal cities throughout
the contiguous United States, Alaska and Hawaii. This warranty is valid in the 50 United States and is
void elsewhere unless the product is purchased through Middleby International with warranty
included.
The foregoing warranty is exclusive and in lieu of all other warranties, expressed or implied.
There are no implied warranties of merchantability or of fitness of a particular purpose.
The foregoing warranty shall be Seller’s sole and exclusive obligation and Buyer’s sole and exclusive
remedy for any action including breach of contract or negligence. In no event shall Seller be liable for
a sum in excess of the purchase price of the item. Seller shall not be liable for any prospective or lost
profits of Buyer.
CTX® 1400 Toastmaster Drive Elgin, IL 60120 USA (847) 741-3300
©2013 CTX www.middleby.com/midmarsh/
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS AND LIQUIDS IN THE
VICINTIY OF THIS OR ANY OTHER APPLIANCE
WARNING
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.
NOTICE:
This Operating and Installation Manual should be given to the user. The operator of the oven
should be familiar with the functions and operation of the oven.
This manual must be kept in a prominent, easily reachable location near the oven.
It is suggested to obtain a service contract with a manufactures certified service agent.
NOTICE
CONTACT YOUR LOCAL SERVICE COMPANY TO PERFORM MAINTENANCE AND REPAIRS.
A SERVICE AGENT DIRECTORY IS SUPPLIED IN YOUR
INSTALLATION KIT.
NOTICE
Using any parts other than genuine
CTX factory
manufactured parts relieves the manufacturer
of all warranty and liability.
NOTICE
CTX (Manufacturer) reserves the right to
change specifications at any time.
The equipment warranty is not valid unless the oven is installed, started and demonstrated under the
supervision of a factory certified installer.
WARNING
TABLE OF CONTENTS
SECTION 1- DESCRIPTION ........................................................................ 5
A. Component Location………………………………………………..........6
B. Component Function……………………………………………………...7
C. Oven Specifications…………………………………………………….8-9
D. Dimension Drawings………………………………………………….9-12
SECTION 2- INSTALLATION………………………………………………….13
A. Inspect For Shipping Damage………………………………………….13
B. Placement of Oven………………………………………………………13
C. Items for Stacking Oven………………………………………………...13
D. Base Section Assembly……………………………………………..14-15
E. Mounting Single Oven Onto Base Assembly……………………..15-16
F. Stacking and Mounting Two Ovens………………………………..16-17
G. Stacking and Mounting Three Ovens……………………………........17
H. Stacking and Mounting Four Ovens……………………………………
I. Electrical Connection……………………………………………………17
J. “Loose” Parts……………………………………………………………..17
SECTION 3- OPERATION……………………………………………………..18
A. Location of Controls……………………………………………………..18
B. MenuSelect™ Control Operation and Programming…………….19-30
C. Cooking in a CTX Oven……………………………………………..31-32
D. Time and Temperature Guide.……………………………………..32-36
SECTION 4- CLEANINING.........................................................................37
A. Cleaning the Cooling Fan Filter………………………………………...37
B. Oven Cleaning Operation…………………………………...………37-38
C. Cleaning “Loose” Parts………………………………………………….38
D. Cleaning the Exterior………………………………………………...….39
SECTION 5- MAINTENANCE & TROUBLESHOOTING…………….….....39
A. Chart 1- Error Messages…………...…………………………………...39
B. Chart 2- Troubleshooting………………………………………………..40
SECTION 6- PARTS LISTS………………………………………………..41-42
Oven Open Rear View………………………………………………………43
Oven Elements Exposed View……………………………………………..44
Oven Front Closed View…………………………………………………….45
Oven Front Open View………………………………………………………46
Single Belt Conveyor………………………………………………………...47
Split Belt Conveyor…………………………………………………………..48
SECTION 7- ELECTRICAL SCHEMATICS……………………………...…..49
A. Model DZ33I, 208/230V, 3Ph Schematic……………………………..49
B. Model DZ33I, 380/415V, 3Ph Schematic…………...………………...50
C. Model DZ33I, 230V, CE, 3Ph Schematic……………………………..51
D. Model DZ33I, 380V, CE, 3Ph Schematic……………………………..52
This manual must be kept for future reference
Note:
Wiring diagrams are contained in the manual and
are also located in the oven.
SECTION 1 - DESCRIPTION
CTX Series oven is:
• Electrically powered • Conveyorized
• Zone heated by infrared panels • Electronically controlled
CTX Oven Model:
• DZ33I – 31” (787 mm) long cooking chamber with a MenuSelect™ control.
NOTE: “DZ” designation on ovens stands for: “D” = Dual Conveyor, “Z” = Zone Temperature
Control.
DZ33I
Figure 1
A. Component Location
Locking Casters
Oven Base
with Legs
Fan
Warning
Light
Conveyor
Motor
Conveyor
Cooking Chamber
Conveyor Belt or Belts
Crumb Tray
Draft Curtain
Control Circuit
Breakers
Cooling
Fan
Control with
Digital Display
Oven Data Plate
Figure 1-2
B. Component Function
1. Oven Controller
The controller controls all functions of the oven. The cooking temperatures can be set from 200F
to 900F (93C to 509C). Cooking times (conveyor speed) can be set from 1:00 minute to 60:00
minutes on the DZ33I.
Controller features a self-cleaning mode, a programmable automatic ON/OFF timing mode, and
an energy conserving standby mode. Also included is a service mode designed to assist the
service technician.
The Menu Select control contains 10 menu keys which can be preset to control both oven
temperature and cook time. The operator must then press only the menu key for the desired
product being cooked.
2. Infrared Heating Panels
Heating panels are positioned above and below the conveyor belt in the oven chamber
(figure 1-3). When energized these panels emit infrared long waves. These waves do not heat the
air through which they pass. Instead the waves are absorbed by the outer surface of the product
transported through the oven on the conveyor belt. Using this application, food is placed on the
conveyor and the unique properties of the infrared waves cause it to cook from the outside to the
center in traditional fashion.
Figure 1-3
DZ33I Heat Zones
3. Conveyor
Model
No
AC
Volts
Phase
Hz
Connected
kW
AVG
Operating
kW
Connected Load (Amps)
Required
Breaker
(Amps)
L1
L2
L3
N
DZ33I
208
1
50/60
8.95
3.1
45.7
45.7
--
--
60
DZ33I
208
3
50/60
9.5
3.1
30.3
30.3
19.8
--
40
DZ33I
240
1
50/60
10.0
3.1
41.7
41.7
--
--
60
The conveyor is used to convey the product through the oven deck (chamber). The conveyor is
made up of 1to 2 stainless steel wire belts which can travel in either direction around the frame.
The conveyor is controlled by the controller and can travel at speeds from 1:00 to 60:00 minutes.
The speed of the conveyor determines how long the product will be in the cooking chamber which
is the cooking time.
CAUTION: All DZ ovens are Voltage Specific. Check the oven data plate for the voltage. Applying the wrong voltage can
immediately damage the oven. Refer to the Installation Section of this manual for complete instructions before installing
an oven.
C. Oven Specifications
Figure 1-1 Dimensions DZ33I
Single Oven on Base and Casters
Overall Height 39.44” (1001.8mm)
Overall Depth 39.03” (991.4mm)
Overall Length 59.00” (1499mm)
Double Oven on Base and Casters
Overall Height 55.32” (1328.9mm)
Overall Depth 39.03” (991.4mm)
Overall Length 59.00” (1499mm)
Triple Oven on Base and Casters
Overall Height 65.17” (1655.3mm)
Overall Depth 39.03” (991.4mm)
Overall Length 59.00” (1499mm)
Quad Oven on Base and Casters
Overall Height 72.02” (1829.3mm)
Overall Depth 39.03” (991.4mm)
Overall Height 59.00” (1499mm)
Oven Chamber Dimensions
Overall Height 5.5” (140mm)
Overall Width 22.25” (565mm)
Overall Length (Heating Zone) 31.22” (793mm)
Conveyor Baking Area 3.88sq. ft. (0.36sq. m.)
Stainless Steel Single Conveyor Belt Width 18” (457mm)
Stainless Steel Duel Conveyor Belt Width (2) 8.00” (203mm)
Net Weight of Single Unit 362 lbs. (164.2 kg)
Temperature Range 1500F-9000F (66.50C-4820C)
Oven Electrical Specification Chart
NOTE: A separate ground wire must be supplied with each oven; conduit may not be used as a ground.
NOTE: Supply wire must be rated minimum 900C (1940F).
Domestic Amp Loading Charts
DZ33I Domestic
DZ33I
240
3
50/60
10.0
3.1
27.6
27.6
18.1
--
40
Model
No
AC
Volts
Phase
Hz
Connected
kW
AVG
Operating
kW
Connected Load (Amps)
Required
Breaker
(Amps)
L1
L2
L3
N
DZ33I
(CE Listed)
230
3
50/60
9.2
3.1
18.9
18.9
32.6 - 40
DZ33I
(CE Listed)
380
3
50/60
8.4
3.1
18.9
9.2
9.2
8.9
30
We reserve the right to change specifications and product
design without notice. Such revisions do not entitle the
buyer to corresponding changes. Improvements, additions
or replacements for previously purchased equipment.
D. Dimension Drawings
1. Dimension drawing of Single DZ33I Oven on Base.
DZ33I International
Note: All figures in parentheses are in millimeters.
2. Dimension drawing of two stacked DZ33I ovens on base.
Note: All figures in parentheses are in millimeters.
3. Dimension drawing of three stacked DZ33I ovens on base.
Note: All figures in parentheses are in millimeters.
4. Dimension drawing of a Quad stacked DZ33I ovens on base.
Note: All figures in parentheses are in millimeters.
Side View Front View
A. Inspect for shipping Damage
All shipping container should be examined for
damage before and during unloading. This
equipment was carefully inspected and
SECTION 2 – INSTALLATION
packaged at the factory. The freight carrier has
assumed responsibility for its safe transit and
delivery. If equipment is received in damaged
condition, either apparent or concealed, a
claim must be made with the delivering
Quantity
Description
2
4”x4”x4’ (10.2cm x 10.2cm x 61cm)
board
2
4”x4”x2’ (10.2cm x 10.2cm x 122cm)
board (stacking ovens only)
2
1-1/2”x7’ (3.8cm x 213cm) rigid pipe
Schedule 40
2
Custom M5 Lift (Vermette)
carrier.
1. Apparent Damage or Loss- If damage or
loss is apparent it must be noted on the
freight bill or express receipt at the time
of delivery, and it must be signed by the
carrier’s agent (driver). If this is not
done, the carrier may refuse the claim.
The carrier will supply the necessary
claim forms.
2. Concealed Damage or Loss- If damage
or loss is not apparent until after
equipment is uncrated, a request for
inspection of concealed damage must
be made with carrier within 10 days. The
carrier will make an inspection and will
supply necessary claim forms. Be
certain to retain all contents plus
external and internal packaging/crating
materials for inspection.
B. Placement of Oven
Some very important considerations must be
made when choosing the place where the oven
is to operate.
3. This Oven is conveyorized and operates
continuously. It should be placed so it
fits into the “flow” of the operation.
4. Drafts entering the oven chambers can
cause inconsistent cooking results.
Check the area surrounding the oven
and eliminate sources of drafts such as
open windows or doors and fans or
other appliances that cause air
circulation.
5. Oven should be positioned so hot air
from and other piece of equipment
cannot enter oven cooling fan air intake
on oven front. Serious problems could
occur.
NOTE: To validate a new oven(s) warranty a certified
CTX installer must supervise Steps C through H of
installation.
C. Items for Stacking Oven
The following items are required for stacking
ovens:
Item
Qty,
Part Number
Description
1
1
67880
INSUL, BASE PART A
2
2
67881
INSUL, BASE PART C
3
2
67882
INSUL, BASE PART B
PARTS LISTED ABOVE ARE FROM 69978 KIT, DZ33I INSULATION
4
1
67884
WLDMT. BASE DZ33
5
1
67614
PANEL, TOP
6
4
66948
ASSY. LEG, CASTER
7
4
59156
SCR, SL TRUSS HD SS 10-32X1-1/2”
D. Base Section Assembly
1. Locate the carton containing the oven base. Remove and inventory the contents. Refer to the correct
parts lists below and also to Figure 2-1.
Figure 2-1
Single Oven Stand Parts
8
16
21422-0001
WASHER, LOCK SPLIT 3/8” ZP
9
16
21416-0001
WASHER, FLAT SS 3/8”
10
16
2000531
SCR, CAP HX HD 3/8”-16X1” NP
Qty,
Part Number
Description
1
1
67880
INSUL, BASE PART A
2
2
67881
INSUL, BASE PART C
3
2
67882
INSUL, BASE PART B
PARTS LISTED ABOVE ARE FROM 69978 KIT, DZ33I INSULATION
4
1
67884
WLDMT. BASE DZ33
5
1
67614
PANEL, TOP
6
4
66948
ASSY. LEG, CASTER
7
4
59156
SCR, SL TRUSS HD SS 10-32X1-1/2”
8
16
21422-0001
WASHER, LOCK SPLIT 3/8” ZP
9
16
21416-0001
WASHER, FLAT SS 3/8”
10
16
2000531
SCR, CAP HX HD 3/8”-16X1” NP
Item
Qty,
Part Number
Description
1
1
67880
INSUL, BASE PART A
2
2
67881
INSUL, BASE PART C
3
2
67882
INSUL, BASE PART B
PARTS LISTED ABOVE ARE FROM 69978 KIT, DZ33I INSULATION
4
1
67884
WLDMT. BASE DZ33
5
1
67614
PANEL, TOP
6
4
66947
ASSY. LEG, CASTER
7
4
59156
SCR, SL TRUSS HD SS 10-32X1-1/2”
8
16
21422-0001
WASHER, LOCK SPLIT 3/8” ZP
9
16
21416-0001
WASHER, FLAT SS 3/8”
10
16
2000531
SCR, CAP HX HD 3/8”-16X1” NP
Item
Qty,
Part Number
Description
1
1
67880
INSUL, BASE PART A
2
2
67881
INSUL, BASE PART C
3
2
67882
INSUL, BASE PART B
PARTS LISTED ABOVE ARE FROM 69978 KIT, DZ33I INSULATION
4
1
67884
WLDMT. BASE DZ33
5
1
67614
PANEL, TOP
11
4
58930
CASTER
Double Oven Stand Parts
Triple Oven Stand Parts
Quad Oven Stand Parts
2. Lay Wldmt. Base (Item 4, Figure 2-1)
upside down on the floor and remove
the protective film from base. Attach the
four Assy. Leg, Caster (Item 5) using 16
SCR, Cap HX HD 3/8”-16X1” NP (Item
10), 16 Washer, Flat SS 3/8” (Item 9),
and 16 Washer, Lock Split 3/8” ZP (Item
8). For Quad screw casters directly into
basepad.
3. Turn the base assembly upright and set
aside. Also set aside 4 SCR, SL Truss
HD SS 10-32X1-1/2” (Item 7), and
E. Mounting Single Oven onto Base Assembly
Panel, Top (Item 5). The base will be used
to stack oven on, and the top secures to the
top of the oven top oven.
1. Cut the bands holding the protective
shipping carton to the skid. Carefully
remove the bands and lift the carton up
off the oven.
2. Cut the bands holding the oven to the
skid.
IMPORTANT: Lift the oven with the
4”X4”X10’ (10.2cmX10.2cmX122cm)
running through the oven only. DO NOT
lift the oven by the conveyor. Damage
WILL result.
IMPORTANT: Lift the oven with the
4”X4”X10’ (10.2cmX10.2cmX122cm)
running through the oven only. DO
NOT lift the oven by the conveyor.
Damage WILL result.
3. Slide the two 4”X4”X10’ (10.2cm X
10.2cm X 304.8cm) pieces of wood
through the oven cavity. The wood
pieces should be sticking out of the
oven equally on both sides. One of the
pieces of wood should be placed to the
rear of the oven and the other in the
front of the oven. See figure 2-2.
4. Position the two Vermette lifts on either
ends of the oven under the 10’
(304.8cm) pieces of wood, making sure
the legs with wheels are up as close as
possible to the skid. Place the two
4”X4”X4’ (10.2cm X 10.2cm X 122cm)
pieces of wood across the two Vermette
forks, at least 6” (182.88cm) in from the
end of the forks, and centered with the
10’ (304.8cm) pieces of wood running
through the oven cavity. See figure 2-2.
5. With the 4’ (122cm) pieces positioned
under the 10’ (304.8cm) begin to lift the
oven with the two Vermette lifts.
(keeping the oven level at all times).
6. When the oven is completely free from
the skid, slide it out from under the
oven. (dispose of the skid in accordance
with local regulations).
7. Lift the oven high enough to position the
stand under. Roll the stand under the
oven (do not roll the oven and lifts over
the stand) and lower onto the stand.
The bottom of the oven will wrap around
the stand.
(careful not to get hands or fingers
between oven and stand).
Figure 2-2
F. Stacking and Mounting Two Ovens
1. Cut the bands holding the protective
shipping carton to the skid. Carefully
remove the bands and lift the carton up
off the oven.
2. Cut the bands holding the oven to the
skid.
3. Slide the two 4”X4”X10’ (10.2cm X
10.2cm X 304.8cm) pieces of wood
through the oven cavity. The wood
pieces should be sticking out of the
oven equally on both sides. One of the
pieces of wood should be placed to the
rear of the oven and the other in the
front of the oven. See figure 2-2.
4. Position the two Vermette lifts on either
ends of the oven under the 10’
(304.8cm) pieces of wood, making sure
the legs with wheels are up as close as
possible to the skid. Place the two
4”X4”X4’ (10.2cm X 10.2cm X 122cm)
pieces of wood across the two Vermette
lift forks, at least 6” (182.88cm) in from
the end of the forks, and centered with
the 10’ (304.8cm) pieces of wood
running through the oven cavity.
(figure 2-2)
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