Blodgett 901 Base Owner's manual

900 SERIES
ROASTING, BAKING AND PIZZA OVEN
INSTALLATION -- OPERATION -- MAINTENANCE
LA SÉRIE 900
DU FOUR À RÔTIR, À CUIRE ET À PIZZA
MANUEL D’INSTALLATION -- UTILISATION -- ENTRETIEN
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone [phone] Fax: [phone]
PN 11356 Rev G (2/06)
E2003 --- G.S. Blodgett Corporation

IMPORT
A
NT
FORYOURSAFETY
Do not store or use gasoline or other flammable vapors or liquids in the vicinity
of this or any other appliance.
AVERTISSEMENT
Ne pas entreposer ni utiliser de l’essence ni d’autres vapeurs ou liquides inflam-
mables dans le voisinage de cet appariel, ni de tout autre appareil.
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.
LES INSTRUCTIONS À RESPECTER AU CAS OÙ L’UTILISATEUR PERÇOIT UNE
ODEUR DE GAZ DOIVENT ÊTRE AFFICHÉES DANS UN ENDROIT BIEN VISIBLE.
VOUS POUVEZ VOUS LES PROCURER AUPRÈS DE VOTRE FOURNISSEUR DE
GAZ LOCAL.
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
AVERTISSEMENT: UNE INSTALLATION, UN AJUSTEMENT, UNE ALTÉRATION, UN
SERVICE OU UN ENTRETIEN NON CONFORME AUX NORMES PEUT CAUSER DES
DOMMAGES À LA PROPRIÉTE, DES BLESSURES OU LA MORT. LISEZ ATTENTIVE-
MENT LES DIRECTIVES D’INSTALLATION, D’OPÉRATION ET D’ENTRETIEN AVANT
DE FAIRE L’INSTALLATION OU L’ENTRETIEN DE CET ÉQUIPEMENT.
The information contained in this manual is important for the proper installation,
use, and maintenance of this oven. Adherence to these procedures and instruc-
tions will result in satisfactory baking results and long, trouble free service.
Please read this manual carefully and retain it for future reference.
Les informations données dans le présent manuel sont importantes pour installer,
utiliser et entretenir correctement ce four. Le respect de ces instructions et procé-
dures permettra d’obtenir de bons résultats de cuisson et une longue durée de ser-
vice sans problèmes. Veuillez lire le présent manuel et le conserver pour pouvoir
vous y reporter à l’avenir.
Errors: Descriptive, typographic or pictorial errors are subject to correction. Specifica-
tions are subject to change without notice.
Erreurs:Les erreurs de description, de typographie ou d’illustration font l’objet de
corrections. Les caractéristiques sont sujettes à modifications sans préavis.

THE REPUTATION YOU CAN COUNT ON
UNE RÉPUTATION SUR LAQUELLE VOUS POUVEZ COMPTER
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.
Cela fait maintenant dessus un siècle et demique Blodgett se spécialisedans
la fabrication de fours. Nous avons établi les normes de qualité qui s’appli-
quent dans l’industrie à tous les types de fours utilisés dans les services ali-
mentaires, quelqu’en soit la taille, l’exploitation ou le budget. En fait, ni n’offre
plus de modèles, de tailles et d’applications de fours que Blodgett. À gaz et
électriques. De tailles différentes, sur plan de travail et superposables. Qu’il
s’agisse de fours à convection, des modèles Cook’n Hold et Combi-Oven, ou
de la gamme de fours à pizzas de la plus haute qualité offerte sur le marché.
Pour de plus amples informations sur la gamme complète de fours Blodgett,
veuillez contacter votre représentant Blodgett.

Your Service Agency’s Address:
Adressedevotreagencedeservice:
Model/Modèl:
Serial Number/Numéro de série:
Your oven was installed by/
Installateur de votre four:
Your oven’s installation was checked by/
Contrôleur de l’installation de votre four:

Table of Contents/Table des Matières
Introduction
Oven Description and Specifications 2....
Oven Components 3....................
Installation
Delivery and Location 4.................
Oven Assembly 5......................
Packaging 5..........................
Leg Attachment 5.....................
Caster ATtachment 5..................
Double Section Assembly 6............
Ultra Rokite Deck 6...................
Steam Injection 7.....................
Ventilation 8...........................
Canopy Type Exhaust Hood 8..........
Direct Flue Arrangement 9.............
Venting Problems 9...................
Utility Connections ---
Standards and Codes 10.................
Gas Connection 11......................
Initial Startup 14.........................
Operation
Safety Information 15....................
Oven Control 16.........................
Suggested Times and Temperatures 17....
Maintenance
Cleaning and Preventative Maintenance 19.
Troubleshooting Guide 20................
Introduction
Description et Spécifications du Four 22....
Éléments du Four 23.....................
Installation
Livraison et Implantation 24...............
Montage du Four 25.....................
Emballage 25.........................
Assemblage des Pieds 25...............
Fixation des Roulettes 25...............
Double Section Assembly 26............
Des Plaques en Rokite 26...............
Injection de Vapeur 27..................
Ventilation 28...........................
Hotte D’évacuation Type Voûte 28.......
En Prise Directe 29.....................
Problêmes de la Ventilation 29...........
Branchements de Service ---
Normes et Codes 30.....................
Branchement de Gaz 31.................
L’Installation Initiale 34...................
Utilisation
Information de Sécurité 35................
Oven Control 36.........................
Durées et Températures Suggérées 37.....
Entretien
Nettoyage et Entretien Préventif 39........
GuidedeDétectiondesPannes 40........

Introduction
2
Oven Description and Specifications
The 900 Series enjoys the distinction of having the
longest continuous production run of any oven
manufactured by the G. S. Blodgett Company since
its founding in 1848. The first 900 oven was mar-
keted in 1940 and while advancements in metallur-
gy and more convenient and reliable controls have
been incorporated over the years, the basic design
of this unit has remained unchanged since its incep-
tion.
In establishing this record, the 900 Series has set
industry wide standards for excellence in baking
characteristics, performance, and reliability. In its
primary applications, it remains unsurpassed for
product quality. Simplicity of design and quality
construction throughout assure years of trouble-
free service if equipment is installed properly and
given minimal periodic maintenance.
GAS SPECIFICATIONS
Natural Gas Propane Gas
US Units SI Units US Units SI Units
Heating Value 1000 BTU/hr 37.3 MJ/m32550 BTU/hr 95.0 MJ/m3
Specific Gravity (air=1.0) 0.63 0.63 1.53 1.53
Gas Manifold Pressure 5.0” W.C. 1.25 kPa 10.0” W.C. 2.49 kPa
Oven Input
901
911
911P
951
961
961P, 966, 981
22,000 BTU
20,000 BTU
27,000 BTU
38,000 BTU
37,000 BTU
50,000 BTU
6.4 KW
5.9 KW
7.9 KW
11.1 KW
10.8 KW
14.6 KW
22,000 BTU
20,000 BTU
27,000 BTU
38,000 BTU
37,000 BTU
50,000 BTU
6.4 KW
5.9 KW
7.9 KW
11.1 KW
10.8 KW
14.6 KW
Main Burner Orifice Size
901
911
911P
951
961
961P, 966, 981
45 MTD*
46 MTD*
42 MTD*
34 MTD*
34 MTD*
30 MTD*
2.08 mm
2.05 mm
2.35 mm
2.8 mm
2.8 mm
3.25 mm
54 MTD*
55 MTD*
53 MTD*
49 MTD*
49 MTD*
45 MTD*
1.39 mm
1.3 mm
1.5 mm
1.85 mm
1.85 mm
2.1 mm
Pilot Burner Orifice Size 0.18” .45 mm .010” .25 mm
NOTE: * Multiple Twist Drill
NOTE: Orifice sizes given are at sea level.

Introduction
3
Oven Components
Ultra Rokite Deck --- stone deck that absorbs heat
from below to cook the bottom of the product.
Deck Supports --- h o l d t h e o v e n d e c k s .
Control Panel --- contains components to control
the oven operation.
Burner Compartment --- located beneath the
cooking chamber. The burner compartment con-
tains the combustion burners.
Combustion Burners --- provide heat to the bak-
ing chamber and the decks.
Deflector --- diverts some of the heat from the
combustion burners to the flue plates.
Flue Plates --- located on the interior side walls of
the cooking chamber. The flue plates conduct
heat from the burners to the oven cavity. The heat
cooks the top of the product before being vented
from the oven.
7” High Compartment
911 - 33” x 22”
911-P - 33” x 22”
961 - 42” x 32”
961-P - 42” x 32”
Two 7” High Compartments
981 - 42” x 32”
12” High Compartment
901 - 33” x 22”
951 - 42” x 32”
16” High Compartment
966 - 42” x 32”
Figure 1

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 external dam-
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.
The following clearances must be maintained be-
tween the oven and any combustible or non-com-
bustible construction.
D Oven body right side --- 6” (15cm)
D Oven body left side --- 6” (15cm)
D Oven body back --- 6” (15cm)
D Oven body bottom --- 6” (15cm)
Area must be accessible for proper servicing.
NOTE: On gas models, routine servicing can usu-
ally be accomplished within the limited
movement provided by the gas hose re-
straint. If the oven needs to be moved fur-
ther from the wall, the gas must first be
turned off and disconnected from the oven
before removing the restraint. Reconnect
the restraint after the oven has been re-
turned to its normal position.
It is essential that an adequate air supply to the
oven be maintained to provide a sufficient flow of
combustion and ventilation air.
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. Either condition will restrict the proper
flow of combustion and ventilation air resulting
in damage to the oven.

Installation
5
Oven Assembly
PACKAGING
Before beginning assembly of the oven, check for
all necessary components. In addition to the oven
itself, legs, a proper vent, and/or other accesso-
ries may be required.
900 Series ovens are packaged as follows:
Single Section Ovens
Thefollowingarepackedintheoven:
D A set of 27-1/2” (70 cm) legs with attaching
hardware.
D Either a canopy or direct vent as specified
D Either a natural gas or propane gas pressure
regulator as required.
Multiple Section Ovens
The following are packed inside the bottom sec-
tion:
D A set of legs of the appropriate length
D Either a canopy or direct vent as specified
D A back pipe of appropriate length with either a
natural gas or propane gas regulator attached
Additional Packaging
D Ultra Rokite decks for all 900 Series are packed
in a separate crate.
D The top section of multiple section ovens will al-
ways have the crown angle in position.
LEG ATTACHMENT
1. Put the oven onto a lift with the bottom of the
oven down.
2. Each leg is attached by three bolts to the un-
derside of the oven base frame.
Figure 2
CASTER ATTACHMENT
1. Bolt supports to oven with 1/2---13 hex head
bolts(casterswithbrakesshouldbefacing
front of oven.)
2. Carefully place oven onto the casters. (It will
be necessary to have several persons lift oven
off the pallet and set it onto the casters). En-
gage brakes on front casters.
NOTE: A fixed restraint must be provided if cast-
ers are used in conjunction with a flexible
connector for movable appliances. This
restraint must secure the oven to a non-
movable surface to eliminate stress on the
connector. If the oven is moved, the re-
straint must be reconnected after the oven
is returned to it’s normal position.
Restraint Cable
Bracket
Figure 3

Installation
6
Oven Assembly
DOUBLE SECTION ASSEMBLY
1. Placelowersectioninpredeterminedplaceof
installation.
2. Attach the legs (and casters if applicable) as
previously described.
3. Using two 1” boards, place one near the edge
of the oven and the other at the far side of the
flue collar.
4. Lift the upper section and place on the boards.
Push the top section across until the sections
are even.
5. Remove the board from one side by placing a
2” x 4” approximately four feet long under the
angleframe.Lifttoremovetheboard.
6. Remove the other board in the same manner
as above, allowing the upper section to come
gently to rest in the proper position.
7. Install gas back-pipes and pressure regulator.
8. Install the canopy or direct type vent as appro-
priate.
9. Remove all tags.
10. Level the ovens side to side and front to back
by placing a spirit level on the base frame of
the lower section and screwing the adjustable
leg feet in or out as appropriate.
ULTRA ROKITE DECK
1. Slide the Ultra Rokite shelf through the door
opening. Rest the shelf on the deflector and
slide to the rear of the oven until it drops into
the shelf support.
2. Refer to pre-heating instructions supplied with
Ultra Rokite.
NOTE: Because of the weight of the Ultra Rokite
shelves, take care to avoid injury to your-
self or damage to the shelves when sliding
sections into the oven.
NOTE: For model 981, Ultra Rokite is only avail-
able as a bottom deck. DO NOT install the
Ultra Rokite in the top baking compart-
ment of a 981.
Double Section Assembly
Figure 4