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

Operation
10
Cooking Computer
PROGRAMMING PROCEDURES
Programming the Cook Time:
1. Press the PROGRAM/ENTER key (9).
2. Press the TIME key (8). The display reads
PROG-?SETTIME-?____.
3. Use the NUMERIC keys (3) to enter the de-
sired cook time. If an error is made, press the
CLEAR key (5) and re-enter the number.
4. Press the PROGRAM/ENTER key (9) twice to
store the new time.
Programming the Temperature:
1. Press the PROGRAM/ENTER key (9).
2. Press the SET TEMP key (6). The display
reads PROG-?SETTEMP-?____C.
3. Use the NUMERIC keys (3) to enter the de-
sired temperature set point. If an error is
made, press the CLEAR key (5) and re-enter
the number.
4. Press the PROGRAM/ENTER key (9) twice to
store the new temperature.

Maintenance
11
Cleaning and Parts Replacement
CLEANING
NOTE: DO NOT spray the oven with a water jet.
Daily
1. Remove and clean the crumb pans.
2. Clean the conveyor belt with a brush.
Every 3 months
1. Clean the axial fan guards.
Every 6 months
1. Remove the conveyor belt and guides.
2. Clean the inside of the oven.
Every 12 months
A factory authorized service person should:
1. Clean the control panel, oven cavity, burner
and fans.
2. Check the main electrical connections.
3. Check the drive motor. Replace the carbon
brushes.
4. Clean and lubricate the drive chain.
5. Check and adjust the gas setting. (Gas mod-
els only.)
PARTS REPLACEMENT
Electrical Components
1. Shut off the gas (if applicable). Turn off the
main electrical connection.
2. Remove the control box cover.
3. Replace the defective components.
4. Replace the control box cover.
5. Turn on the main electrical connection. Turn
on the gas (if applicable).
Gas Control Combination
NOTE: Gas models only.
1. Shut off the gas. Turn off the main electrical
connection.
2. Removethegasconnectiononbothsidesof
the control combination.
3. Replace and adjust the gas connection.
Check for gas leaks.
4. Turn on the main electrical connection. Turn
on the gas.
Removal of Burner
NOTE: Gas models only.
1. Shut off the gas. Turn off the main electrical
connection.
2. Remove the gas connection.
3. Remove the four screws from the burner
mounting plate. Remove the burner.
4. Replace pilot if necessary.
5. Reinstall the burner.
6. Turn on the main electrical connection. Turn
on the gas.
Cooling Fans
1. Shut off the gas (if applicable). Turn off the
main electrical connection.
2. Remove the oven back panel. Remove the in-
sulation if necessary.
3. Disconnect and replace the defective fans.
4. Reinstall the insulation and oven back panel.
5. Turn on the main electrical connection. Turn
on the gas (if applicable).
Combustion Chamber
NOTE: Gas models only.
1. Shut off the gas.
2. Remove the combustion chamber cover plate
and insulation.
3. Clean the combustion chamber.
4. Reinstall the insulation and cover plate.
5. Turn on the gas.
Operating Panel Components
1. Shut off the gas (if applicable). Turn off the
main electrical connection.
2. Remove the screws located on the bottom of
the oven holding the control. Slide the operat-
ing panel out.
3. Replace the defective component.
4. Reinstall the operating panel.
5. Turn on the main electrical connection. Turn
on the gas (if applicable).

Figure 12
MT1828G
Cooling Fans
Air Flow
Pressure Switch
Burner Blower
Assembly
Conveyor Drive Motor
Drive Belt
Power Supply
Connection
Gas Regulator Valve
Burner
Ignition
Control
Air Flow
Pressure
Switch
High Limit
Reset Button
Motor Drive Board
Maintenance
12
Component Locations

Control Power
Supply and
Relay Assembly
MT1828E
Figure 13
Cooling Fans
Power Supply Connection
Conveyor Drive Motor
Drive Belt
Step Down
Transformer
Heating
Element
Contactor
High Limit
Reset Button
Blower Motor
Contactor
Motor Drive Board
Maintenance
13
Component Locations

Maintenance
14
Troubleshooting
POSSIBLE CAUSE(S) SUGGESTED REMEDY
SYMPTOM: Blower motor(s) not running
S Blower control turned off
S No power to oven
S Motor fuses blown
S Control circuit fuse blown
S Turn to blower on
S Replace main fuses or reset breakers
S Replace fuses
S Replace fuses
SYMPTOM: Burner will not fire or elements do not heat
S Control turned off
S Blower motor(s) not running
S Oven not set above ambient temperature
S Manual gas valve closed (gas models only)
S Turn control on
S Check control switch and/or fuses
S Set to desired temperature
S Open valve
SYMPTOM: Oven will not reach desired temperature
S Gas pressure to oven is too low (gas models
only)
S Heat control turned off
S No power to oven
S Blower motor(s) not running
S Contact local gas representatives
S Turn control on
S Replace main fuses
S Check control switch and/or fuses
SYMPTOM: Conveyor belt will not run
S Conveyor control turned off
S Control circuit fuse blown
S Belt hooked on something in oven
S Turn control on
S Replace fuse
S Turn oven off, unhook and resolve problem
WARNING!!
Always disconnect the power supply before cleaning or servicing the oven.

15
MT1828 serie
Transportørovn
Ejer --- og brugermanual

Installation
16
Ovn specifikationer
SPECIFIKATIONER MT1828G/AB MT1828E/AA
Bæltevidde 46 cm (18”)
Længde på bagezone 71 cm (28”)
Bageområde 0,34 m
2(
3,7 Sq. Ft.)
Dimensioner
(enkelt enhed) 104 cm x 89 cm x 46 cm (41” x 35” x 18”)
Maksimum
driftstemperatur 315_C (600_F)
Min. afstand til væg 9,5 cm (3,75”)
Maksimum indgang 11,7 kW/time (40,000 BTU/TIME ) 11,1 kW/time
Strømtilførsel 230V, 1Φ,50Hz,3wirer,15amp 230/400V, 3Φ,50Hz,5wirer,17amp
Gastilførsel Se tabellen på side 21 Ingen

Installation
17
Levering og placering
LEVERING OG INSPEKTION
Alle ovne fra Blodgett sendes i containere for at
forhindre beskadigelse. Når Deres nye ovn afleve-
res:
D Inspicér forsendelsescontaineren for alle ydre
skader. Ethvert tegn på beskadigelse skal note-
res på leveringskvitteringen, som chaufføren
skal underskrive.
D Tag ovnen ud af kassen og kontrollér, om der er
skader indvendigt. Transportfirmaer accepterer
krav for skjulte skader, hvis de får besked inden-
for 15 dage efter leveringen og forsendelse-
scontaineren tilbageholdes for inspektion.
Blodgett Oven Company tager intet ansvar for
tab eller skader, der pådrages i transit. Tran-
sportfirmaet påtog sig fuldt ansvar for levering
i god stand, da forsendelsen blev accepteret.Vi
er dog klar til at være behjælpelige, hvis det er
nødvendigt at gøre krav på erstatning.
OVNENS PLACERING
Deres ovns gennemtænkte og korrekte placering
vil på langt sigt forenkle operatørens opgaver og
sikre tilfredsstillende ydelse.
D Placer ovnen mindst 5 cm fra den bageste væg
og 50 cm fra sidevæggen.
D Placer ovenen i et område, som er tilstrækkeligt
ventileret.
D Placer ovnen under en udsugningsemhætte, i
henhold til lokale og nationale installation stan-
darder.
D Placer ovnen, så elstikket er tilgængeligt.
Ovnen kan nu flyttes tilinstallationsstedet. Kontrol-
lerlistenfornedenmedFigur1foratsikre,atalle
dele blev modtaget.
Delbeskrivelse Kva
n.
Hovedovnens hus 1
Samling af transportbæltet 1
Krummepander 2
Beslag pakker 2
Produktstop 1
Krummepander
Samling af transportbæltet
(vist uden bælte)
Produktstop
Figur 1

Installation
18
Samling af ovn
BEMÆRK: Dette apparat skal installeres i henhold
til gældende regulativer og kun bruges
i et godt -ventileret område. Se instruk-
tionerne før installation og brug af dette
apparat. Installation må kun udføres af
en kvalificeret tekniker.
BEN
1. Fjern ovnen fra dens forsendelseskasse.
2. Læg ovnen på dens bagside. Skru et ben i
hver af de fire huller, som findes i bunden af
ovnhuset.
3. Stram møtrikken foroven på hvert ben.
4. Løft ovnen op på benene.
Ovnens
bund
Figur 2
OVNSTATIV MED HJUL
1. Sæt hvert ben på stativrammen med en låse-
skive og møtrik. Stram IKKE helt.
2. Placer hylden mellem benene med den glatte
overflade vendende op mod stativets top. Li-
gestil hylden med hullerne i hvert ben. Fastgør
hylden til hvert ben med møtrik og bolt.
3. Stram boltene, som blev installeret i punkt 1.
4. Placer ovnen på stativet. Bolt ovnen fast til sta-
tivet fra undersiden.
5. Sæt et trækaflastningsbeslag på gasmodeller.
Stativets
top
Ben
Stativ
ramme
Hylde
Figur 3
STAKNING AF OVNENE
1. Læg den øverste ovn på bagsiden. Installer en
ovnflugtningsstift i hvert af de fire huller i bun-
den af ovnen.
2. Løft forsigtigt den øverste ovn af pallen og pla-
cer den på den nederste ovn. Sørg for at flugt-
ningsstifterne er sat i hullerne foroven på den
nederste ovn.
Flugtningsstift
Nederste ovn
Figur 4

Installation
19
Samling af ovn
TRANSPORTØR
1. Glid transportsamlingen gennem åbningen til
venstre, til kædehjulet er inde i kontrolboksen.
Se Figur 5.
2. Installer drivremmen på motoren og derefter
rundt om remskiven på transportsamlingen.
Se Figur 6. Skub transportsamlingen tilbage
for at stramme remmen.
Figur 5
Figur 6
BEMÆRK: For at ændre retningen på drivmotoren
(omnødvendigt)bytompåA1ogA2.
Se Figur 7.
ADVARSEL!!
Sluk for strømforsyningen, før retningen
på drivmotoren ændres.
S3 S2 S1 L2 L1
YOR BL AC
AC
W
V
A1 A2 A3 GND
BK
WDC MOTOR
HASTIGHEDS---
KONTROL
Figur 7
KRUMMEPANDER
1. Installer krummepander under hver ende af
transportøren.
Figur 8