Blodgett MT1828 Series User manual

BLODGETT OVEN COMPANY
www.blodgettcorp.com
50 Lakeside Avenue, Box 586, Burlington, Vermont 05402 USA Telephone [phone] Fax: [phone]
PN M9446 Rev B (6/01)
E2000 --- G.S. Blodgett Corporation
MT1828

MT1828 Series Conveyor Oven Owner -- Operator Manual
Installation 3..........................................................................
Operation 9...........................................................................
Maintenance 11........................................................................
MT1828 serie Transportørovn Ejer -- og brugermanual
Installation 16..........................................................................
Betjening 22...........................................................................
Vedligeholdelse 24......................................................................
MT1828 Serie Transportoven Gebruikershandleiding
Installatie 29...........................................................................
Bediening 35...........................................................................
Onderhoud 37..........................................................................
Four à convoyeur Série MT1828 Manuel de l’utilisateur
Installation 42..........................................................................
Fonctionnement 48.....................................................................
Maintenance 50........................................................................
MT1828--Serie Förderofen -- Bedienerhandbuch
Installation 55..........................................................................
Bedienung 61..........................................................................
Wartung 63............................................................................
Serie MT1828 Forno a convogliatore Manuale d’uso
Installazione 69.........................................................................
Funzionamento 75......................................................................
Manutenzione 77.......................................................................
Série MT1828 Forno de Correia Manual do Utilizador -- Proprietário
Instalação 82...........................................................................
Operação 88...........................................................................
Manutenção 90.........................................................................
Norno del transportador Serie MT1828 Manual del operario
Instalación 95..........................................................................
Funcionamiento 101......................................................................
Mantenimiento 103.......................................................................
MT1828 Serien Ugn med transportband Ägarens -- Användarmanual
Installation 108..........................................................................
Användning 114.........................................................................
Underhåll 116...........................................................................

2
MT1828 Series
Conveyor Oven
Owner --- Operator Manual

Installation
3
Oven Specifications
SPECIFICATIONS MT1828G/AB MT1828E/AA
Belt Width 46 cm (18”)
Cooking Zone Length 71 cm (28”)
Baking Area .34 m
2(
3.7 Sq. Ft.)
Dimensions (single unit) 104 cm x 89 cm x 46 cm (41” x 35” x 18”)
Maximum Operating
Temperature 315_C (600_F)
Product Clearance 9.5 cm (3.75”)
Maximum Input 11.7 kW/Hr. (40,000 BTU/HR ) 11.1 KW/hr.
Power Supply 230 VAC, 1Φ,50Hz, 3 wire, 15 Amp 230/400 VAC, 3Φ,50Hz, 5 wire, 17amp
Gas Supply See chart on page 8 None

Installation
4
Delivery and Location
DELIVERY AND INSPECTION
All Blodgett ovens are shipped in containers to
prevent damage. Upon delivery of your new oven:
D Inspect the shipping container for externaldam-
age. Any evidence of damage should be noted
on the delivery receipt which must be signed by
the driver.
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.
OVEN LOCATION
The well planned and proper placement of your
oven will result in long term operator convenience
and satisfactory performance.
D Place the oven at least 5 cm from the rear wall
and50cmfromthesidewall.
D Place the oven in a properly ventilated area.
D Place the oven under an exhaust hood, accord-
ing to Local and National Installation Standards.
D Position the oven so the supply plug is accessi-
ble.
The oven can now be moved to the installation
site. Check the list below with Figure 1 to be sure
all items were received.
Part Description Qty.
Main oven body 1
Conveyor belt assembly 1
Crumb pans 2
Hardware packets 2
Product Stop 1
Crumb Pans
Conveyor Assembly
(shown without belt)
Product
Stop
Figure 1

Installation
5
Oven Assembly
NOTE: This appliance shall be installed in accor-
dance with current regulations and used
only in a well-ventilated space. Refer to the
instructions before installing and using
this appliance. Installation must be per-
formed by a qualified installer only.
LEGS
1. Remove the oven from it’s packing crate.
2. Lay the oven on it’s back. Screw one leg into
each of the four holes located on the bottom
of the oven chamber.
3. Tighten the hex nut at the top of each leg.
4. Lift the oven upright onto the legs.
Bottom of
Oven
Figure 2
OVEN STAND WITH CASTERS
1. Attach each leg to the stand frame with a lock
washer and nut. DO NOT tighten completely.
2. Position the shelf between the legs with the
smooth surface facing the top of the stand.
Aligntheshelfwiththeholesineachleg.At-
tach the shelf to each leg with a nut and bolt.
3. Tighten the bolts installed in step 1.
4. Place the oven onto the stand. Bolt the oven
to the stand from underneath.
5. Attach a strain relief bracket on gas models.
Top of
Stand
Leg
Stand
Frame
Shelf
Figure 3
STACKING THE OVENS
1. Rest the top oven on it’s back. Install an oven
alignment pin into each of the four holes in the
bottom of the oven.
2. Carefully lift the upper oven off the pallet and
placeitontheloweroven.Besurethealign-
ment pins are inserted into the holes in the top
of the lower oven.
Alignment Pin
Bottom oven
Figure 4

Installation
6
Oven Assembly
CONVEYOR
1. Slide the conveyor assembly through the left
hand tunnel opening until the sprocket is in-
sidethecontrolbox.SeeFigure5.
2. Install the drive belt on the motor and then
around the pulley on the conveyor assembly.
See Figure 6. Push the conveyor assembly
back to tighten the belt.
Figure 5
Figure 6
NOTE: To reverse the direction of the drive motor
(if necessary), exchange A1 and A2. See
Figure 7.
WARNING!!
Disconnect the power supply before re-
versing the drive motor.
S3 S2 S1 L2 L1
YOR BL AC
AC
W
V
A1 A2 A3 GND
BK
WDC MOTOR
SPEED
CONTROL
Figure 7
CRUMB PANS
1. Install crumb pans under each end of the con-
veyor.
Figure 8

Installation
7
Utility Connections
GAS CONNECTIONS (if applicable)
Connect the oven to the gas line with the proper
type of gas according to Local and National Instal-
lation Standards.
Setting Equipment for Other Types of Gas
1. Remove the control box door and belt guard.
2. Remove the entire gas piping and burner as-
sembly from the oven.
3. Remove the four screws holding the blower
and belt guard to the burner mounting flange.
Remove the blower and belt guard from the
burner.
4. Unscrew the gas piping at the inlet of the gas
valve.
5. France and Belgium Only ---Thenippleatthe
inlet of the gas valve must be changed. On
natural gas ovens this nipple will have a
3.2mm restrictor inside.
To convert from natural gas to propane/bu-
tane the nipple with the restrictor must be re-
moved and replaced with a nipple without a
restrictor.
To convert from propane/butane to natural
gas the nipple without a restrictor must be re-
moved and replaced with a nipple with a re-
strictor. Orient the nipple so the restrictor is
close to the valve and the open end is close to
the piping elbow.
6. Unscrew the gas valve and remaining piping
up to and including the coupling where it en-
ters the burner tube.
7. Remove the grommet that hold the spark and
flame sense wires.
8. Grasp the front of the oriface assembly while
pushing down on the fitting at the top of the
burner tube. Pull the oriface assembly out of
the front of the burner tube.
NOTE: Be careful not to lose the spacer ring
that goes around the nipple at the inlet
of the orifice assembly, it will be re-
used.
9. Remove the spark and flame sense electrodes
from the oriface assembly. Reinstall in the same
position on the new oriface assembly.
10. Reverse the procedure to reassemble the
burner.
NOTE: Be sure to reinstall the spacer ring and
use thread sealant when reconnecting
the piping fittings.
11. Reinstall the gas valve and burner assembly
into the oven.
Gas pressure
adjustment
Pressure Tap
Disconnect gas
piping here
Blower
mounting screws Belt guard
mounting bracket
Grommet for
spark & flame
sense wires
Disconnect
gas piping
here
Figure 9

Installation
8
Utility Connections
Type of
Gas Inlet Pressure
mbars
Burner Pressure
mbars Injector Diameter
mm
Air
Opening
mm
Standard Delivery
Value kW (H
S
)
G25 25 12 1,40 N/A 11,7 Nat. Gas
G20 20 8,0 1,40 N/A 11,7 Nat. Gas
G20
/
G25 20
/
25 Totall
y
Inscrewed 1,40 N
/
A
11,7 Nat. Gas
G
2
0
/
G
2
5
2
0
/
2
5
T
o
t
a
l
l
y
I
n
s
c
r
e
w
e
d
Pressure Regulator
1
,
4
0
N
/
A
1
1
,
7
N
a
t
.
G
a
s
G30 30/50 6 1,1 N/A 11,7 Butane
G31 30/37/50 8 1,1 N/A 11,7 Propane
ELECTRICAL CONNECTIONS
NOTE: Electrical connection must be performed
by a qualified installer only.
NOTE: The electrical connection must comply
with National and Local codes.
A strain relief for the supply cord is required. The
installer must provide a supply cord bushing that
meets all Local and National Installation Stan-
dards.
For Gas Models:
NOTE: Gas models have a phase sensitiveburner
control unit. If the phase and neutral are
switched the control locks out.
Connect exhaust fan connector 1 and 2. See
Figure 10.
Connect phase + neutral + ground .
For Electric Models:
Connect the oven to a separate group 230V, 50 hz
with rigid connection and circuit breaker. The cir-
cuit breaker should disconnect all poles, including
neutral with a contact separation of at least 3 mm.
ConnectL1+L2+L3+neutral+ground.
s
Connector 1
2
L3
L2
L1
N
Fan
N
L
Blodgett
Connector
2-4-92
A2
A1
2
1
Relay A
1 --- Burner control solenoid
2 --- Air pressure regulator
Figure 10

Operation
9
Cooking Computer
OPERATION
NOTE: Operation is restricted to qualified person-
nel.
To turn the oven on:
1. Turn the manual gas valve to ON. (Gas models
only.)
2. Press and hold the ON/OFF key (2).
3. The display will flash WAIT LOW SET TIME
mmss.
4. The HEAT LIGHT (4) illuminates as the oven
heats to temperature.
NOTE: If in starting, the burner does not ignite
directly, the alarm light will illuminate.
Press the RESET knob to restart the
burner. (Gas models only.)
NOTE: If the oven will not start after several at-
tempts contact a qualified installer.
To view the cook time setting:
1. Press the TIME key (8). The LED on the keywill
light and the display flashes SET TIME mmss.
To display the actual oven temperature:
1. Press the ACT TEMP key (6). The LED on the
key will light and the display reads ACTUAL
nnnn_C.
To view the temperature set point:
1. Press the SET TEMP key (6). The LED on the
key will light and the display flashes SET TEMP
nnnn_C.
To turn the oven off:
1. Press the ON/OFF key(2). The fans will contin-
ue to run until the oven cools down.
2. TurnthemanualgasvalvetoOFF.(Gasmod-
els only.)
12
3
56789
10
4
Figure 11