Blodgett CNV14E, CNV14G User Manual

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CNV14E AND CNV14G

CONVECTION OVEN

INSTALLATION -- OPERATION -- MAINTENANCE

CNV14E ET CNV14G

FOURS À CONVECTION

MANUEL D’INSTALLATION -- FONCTIONNEMENT -- ENTRETIEN

BLODGETT COMBI

www.blodgett.com

50 Lakeside Avenue, Box 586, Burlington, Vermont 05402 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802)864-0183

PN R10144 Rev A (10/01)

E 2001 --- Blodgett Combi

A PERSONAL WORD FROM BLODGETT COMBI

QUELQUES MOTS DE BLODGETT COMBI

Congratulations on your purchase of a BLODGETT Combi appliance. We firmly believe that your choice has been a wise one, and trust you will receive many years of excellent service from your new Combi.

You will find that cooking with Combi appliances saves time, labor and extensive cleaning of both the kitchen and the unit.

With Combi appliances the quality, taste, consistency, and look of your food are improved, thus endorsing the policy to which we’ve always adhered: “For Better Cooking!”

Once you’ve had a chance to use your Combi, please tell us, your dealer and colleagues about any creative and interesting applications you have discovered; exchange ideas with other users. Be sure to advise us or your dealer immediately should any mechanical or technical problems be encountered (...we’re here to help!) and above all “Enjoy Cooking the BLODGETT Combi Way!

For information on cooking, please refer to our separate cooking guide.

Toutes nos félicitations sur votre achat d’appareil de Blodgett Combi. Nous croyons fermement que votre choix est un choix raisonnable et nous sommes certains que vous obtiendrez de nombreuses années d’excellent service de votre nouveau four multi-usages.

Vous allez découvrir que la cuisson dans les appareils Combi économise le temps, le travail et le degré de nettoyage de l’appareil aussi bien que de la cuisine.

Avec les appareil de Combi, la qualité, le goût, la consistence et l’apparence des aliments sont améliorés, s’accordant, de ce fait, avec notre politique ”Pour une meilleure cuisson !”

Une fois que vous aurez eu la chance d’utiliser notre Combi, informez nous, votre concessionnaire et vos collègues, de toutes les applications nouvelles et intéressantes que vous avez découvertes ; échangez vos idées avec d’autres utilisateurs. N’hésitez pas à nous prévenir, ou votre concessionnaire, de tout problème mécanique ou technique que vous pourriez rencontrer (... nous sommes ici pour vous aider) et par-dessus tout “Régalez-vous à cuisiner à la façon BLODGETT Combi!

Pour obtenir de plus amples informations sur l’art culinaire, veuillez consulter notre livre de cuisine séparé.

IMPORTANT

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 ATTENTIVEMENT LES DIRECTIVES D’INSTALLATION, D’OPÉRATION ET D’ENTRETIEN AVANT DE FAIRE L’INSTALLATION OU L’ENTRETIEN DE CET ÉQUIPEMENT.

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.

FOR YOUR SAFETY

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 inflammables dans le voisinage de cet appariel, ni de tout autre appareil.

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.

Les informations données dans le présent manuel sont importantes pour installer, utiliser et entretenir correctement ce four. Le respect de ces instructions et procédures permettra d’obtenir de bons résultats de cuisson et une longue durée de service 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. Specifications 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.

Model/Modèl:

Your Service Agency’s Address: Adresse de votre agence de service:

Serial Number/Numéro de série:

Your appliance 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

Description of the Blodgett Combi

Convection Oven . . . . . . . . . . . . . . . . . . . . . 2

Installation

Agency Approvals . . . . . . . . . . . . . . . . . . . . 3

Owner’s Responsibilities . . . . . . . . . . . . . . . 4

Oven Location and Ventilation . . . . . . . . . . 5

Leg Attachment . . . . . . . . . . . . . . . . . . . . . . 6

Stacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Oven Leveling . . . . . . . . . . . . . . . . . . . . . . . . 8

Plumbing Connections . . . . . . . . . . . . . . . . 9

Electrical Connections . . . . . . . . . . . . . . . . 10

Gas Connections . . . . . . . . . . . . . . . . . . . . . 11

Gas Hose Restraint . . . . . . . . . . . . . . . . . . . 13

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . 14

Final Check Lists . . . . . . . . . . . . . . . . . . . . . 15

Operation

Safety Information for Gas Units . . . . . . . . 16

Gas Controls . . . . . . . . . . . . . . . . . . . . . . . . . 17

Standard Controls . . . . . . . . . . . . . . . . . . . . 18

Optional Cook & Hold . . . . . . . . . . . . . . . . . 19

Optional Meat Probe . . . . . . . . . . . . . . . . . . 22

Maintenance

Spray Bottle Operating Procedure . . . . . . 23

Cleaning and Preventive Maintenance . . . 24

Introduction

Description du four à convection Combi . 25

Installation

Certifications . . . . . . . . . . . . . . . . . . . . . . . . . 26 Responsabilités du propriétaire . . . . . . . . . 27

Emplacement du four et mise de

niveau et Ventilation . . . . . . . . . . . . . . . . . . . 28 Montage des pieds . . . . . . . . . . . . . . . . . . . 29 Superposition . . . . . . . . . . . . . . . . . . . . . . . . 30 Mise de niveau du four . . . . . . . . . . . . . . . . 31 Raccordement de la plomberie . . . . . . . . . 32 Raccordement à l’électricité . . . . . . . . . . . . 33 Raccordement au gaz . . . . . . . . . . . . . . . . . 34 Câble d’immobilisation du tuyau à gaz . . 36 Ajustements . . . . . . . . . . . . . . . . . . . . . . . . . 37 Liste de vérification finale . . . . . . . . . . . . . . 38

Fonctionnement

Renseignements sur la sécurité

des appareils au gaz . . . . . . . . . . . . . . . . . . 39 Commandes du gaz . . . . . . . . . . . . . . . . . . 40 Commandes standard . . . . . . . . . . . . . . . . 41 Cuisson et Pause en Option . . . . . . . . . . . 42 Sonde thermique optionnelle . . . . . . . . . . . 46

Entretien

Procédure de fonctionnement du pulvérisateur . . . . . . . . . . . . . . . . . . . . . . . . . 47

Nettoyage et entretien préventif . . . . . . . . 48

Introduction

Description of the Blodgett Combi Convection Oven

Cooking in the Combi Convection Oven differs from cooking in a traditional 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 quality product, cooked at a lower temperature in a shorter amount of time.

Blodgett Combi ovens are quality produced using high-grade stainless steel with first class workmanship.

The two speed fan, which is guarded against accidental finger contact, is driven by a quiet and powerful motor.

The use of high quality insulation impedes excessive heat radiation and saves energy.

The oven has optional adjustable legs which adapt easily to slightly uneven surfaces and optional floor stands which are designed for use with all of the table models.

Figure 1

2

Installation

Agency Approvals

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.

Qualified installation personnel are individuals, a firm, a corporation, or a company which either in person or through a representative are engaged in, and are responsible for:

DThe installation or replacement of gas piping. The connection, installation, repair or servicing of equipment.

DThe installation of electrical wiring from the electric meter, main control box or service outlet to the electric appliance.

Qualified installation personnel must be experienced in such work, be familiar with all precautions required and have complied with all requirements of state or local authorities having jurisdiction.

U.S. and Canadian Installations

Installation must conform with local codes, or in

the absence of local codes, with the National Fuel Gas Code, NFPA54/ANSI Z223.1 ---Latest Edition,

the Natural Gas Installation Code CAN/CGAB149.1 or the Propane Installation Code, CAN/ CGA-B149.2 as applicable.

Reference: National Electrical Code, ANSI/NFPA 70 ---Latest Edition and/or Canadian Electrical Code CSA C22.1 as applicable.

General Export Installations

Installation must conform with Local and National installation standards. Local installation codes and/ or requirements may vary. If you have any questions regarding the proper installation and/or operation of your appliance, please contact your local distributor. If you do not have a local distributor, please call Blodgett Combi at 0011-802-860-3700.

3

Installation

Owner’s Responsibilities

Installation responsibilities prior to service startup inspection

You are entitled to a free start-up inspection service by our factory ASAP. Before a factory representative arrives to perform a startup procedure, the owner must already have satisfied the following requirements.

1.Oven(s) are uncrated, stacked (if applies) and put in place.

NOTE: Please refer to Leg Attachment and Stacking.

Maximum shelf loading -- 100 lbs (45.5 Kg)

 

RATINGS --

GAS APPLIANCES --

CNV14G/AA

 

 

 

 

 

 

 

Gas Type

Gas Input

 

Voltage

Phase

Amps

Motor

 

 

 

 

 

 

 

U.S. and Canadian Installations

 

 

 

 

 

 

 

 

 

 

 

 

Natural

65,000 BTU/Hr

 

208-240

1

15

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

 

120

1

15

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

Propane

65,000 BTU/Hr

 

208-240

1

15

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

 

120

1

15

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

3/4” FNPT connector for all U.S. and Canadian installations

 

 

--RATINGS

--ELECTRIC APPLIANCES CNV14E/AA

 

 

 

 

 

 

 

 

 

Voltage

Hz

 

Phase

 

Max Load (amps)

Motor

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1

L2

L3

 

 

 

 

 

 

 

 

 

 

208

60

 

1

 

89

89

---

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

208

60

 

3

 

52

52

52

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

240

60

 

1

 

82

82

---

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

240

60

 

3

 

47

47

47

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

480

60

 

3

 

23

23

23

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

380/220

50

 

3

 

25

25

25

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

415/240

50

 

3

 

27

27

27

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

400/230

50

 

3

 

26

26

26

1/2HP 208-240VAC, 50/60 Hz

 

 

 

 

 

 

 

 

 

4

Installation

Oven Location and Ventilation

OVEN LOCATION

The well planned and proper placement of your oven will result in long term operator convenience and satisfactory performance.

Certain minimum clearances must be maintained between the oven and any combustible or noncombustible construction. See the table below.

In addition, the following clearances are recommended for servicing.

D Oven body sides --- 12” (30cm) D Oven body back --- 12” (30cm)

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 first 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.

Left Side Heat Shield

Heat sources should not be near the air vents located on the left hand side of the gas appliance. Consult the factory for optional protective side heat shield.

CNV14

P/N R9527

 

 

 

 

 

 

MINIMUM REQUIRED

Oven

 

CLEARANCES

Model

 

 

 

 

Right

 

Left

Back

 

 

 

Side

 

Side

 

 

 

 

 

 

CNV14E

1”

 

4”

6”

 

(25.4mm)

 

(101.6mm)

(152.4mm)

 

 

 

 

 

CNV14G

1”

 

6”

6”

 

(25.4mm)

 

(152.4mm)

(152.4mm)

 

 

 

 

 

VENTILATION

The necessity for a properly designed and installed ventilation system cannot be over emphasized. The ventilation system will allow the unit to function properly while removing unwanted vapors and products of combustion from the operating area.

The appliance must be vented with a properly designed mechanically driven exhaust hood. 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 capacity of the hood should be sized appropriately and provisions made for adequate makeup air.

WARNING!!

Failure to properly vent the oven can be hazardous to the health of the operator; and will 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.

U.S. and Canadian Installations

Refer to your local ventilation codes. In the ab-

sence 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.

General Export Installations

Installation must conform with Local and National installation standards. Local installation codes and/or requirements may vary. If you have any questions regarding the proper installation and/or operation of your unit, please contact your local distributor. If you do not have a local distributor, please call Blodgett Combi at 0011-802-860-3700.

5

Installation

Leg Attachment

LEG OPTIONS

Legs are available in 4” (101mm), 6” (152mm) or 25” (635mm) lengths or low profile casters.

DThe 4” (101mm) legs may be used when mounting on a counter.

DThe 6” (152.4mm) legs are used on the lower section of a double stacked appliance.

DThe 25” (635mm) legs are used for a single appliance located on the floor.

NOTE: For safety reasons, casters must not be used with the 25” (635mm) legs.

25” (635mm) Adjustable Leg

6” (152,4mm) Adjustable Leg

4” (101mm) Leg

Low Profile Casters

Figure 2

ATTACHMENT

1.Align the threaded stud on one of the front legs to the bolt hole located in the bottom corner of the appliance. Turn the leg clockwise and tighten to the nearest full turn.

2.Align the leg plate holes with the bolt holes. Secure with the two 1/2” bolts provided.

3.Repeat the above steps with the other front leg. If low profile casters are used, install them with the locking casters in the front of the oven. The rear casters do not lock. Ensure that the locks are set on the front casters.

4.Tip the oven up on the newly installed front legs. If casters are used, check that the locks are set on the front casters. Repeat the above steps for the rear legs.

5.Except for appliances with casters, level the oven by screwing the adjustable feet in or out as necessary.

Figure 3

6

Installation

Stacking

WARNING!!

Stacking should be performed by qualified installation personnel only. The appliances are heavy. Take care to use proper tools and techniques when lifting and stacking appliances.

1.Remove the drip pan from the top appliance.

2.Attach the legs or casters to the bottom appliance. See page 6.

3.Place the BC14 on the CNV14. Be sure all four sides are flush.

4.Bolt the two appliances together using the bolts provided.

5.GAS APPLIANCES ONLY: Attach the flue vents as shown.

NOTE: For electric appliances proceed to step 6.

6.Replace the drip pan.

7.Connect the gas (if applicable) and electrical. Refer to pages 10---13.

NOTE: An optional gas manifold may be purchased from Blodgett Combi. Order part number R9570.

NOTE: An optional Drain Assembly/Steam Vent may be purchased from Blodgett Combi. Order part number R9251 for single or top ovens. Order part number R9252 for bottom ovens.

 

 

Hot Air Flue

Steam Generator

 

 

(BC14G &

 

 

Flue

Optional

CNV14G only)

 

 

 

Drain Assembly/Steam Vent

 

 

Mounting

 

 

 

Bracket

 

 

 

Drip Pan

 

 

 

 

1.125” I.D. Hose

OptionalGas

 

from Drip Pan Drain

 

Plumbing

 

 

 

Manifold

BC14 on CNV14

 

 

(BC14G &

 

Rear View

CNV14G only)

Figure 4

7

Installation

Oven Leveling

OVEN LEVELING

This oven should be set up in place.

With any stand or oven, be certain that the surface is level, even and solid. A sloped or uneven base may cause the appliance to function improperly. Minor unevenness can be corrected by adjusting the metal leg feet. The maximum adjustment of the leg feet is 1-3/8” (35mm).

Maximum

Adjustment

1-3/8” (35mm)

Leg

Foot

Figure 5

8

Installation

Plumbing Connections

WATER CONNECTION -- CNV14E ONLY

NOTE: Hot water maximizes steam production but is not required. Cold water may be supplied to both inlets if hot water is not available.

Connect the appliance to quality water via a pressure hose with 3/4” (19mm) couplings. See Figure 6 for connections. A shut off valve is to be provided adjacent to the oven.

WARNING!!

Operating the appliance without the water regulator installed will invalidate your warranty.

Water must meet the following minimum requirements:

DTotal Dissolved Solids (TDS) content will not exceed 30 parts per million.

D Water PH must be 7.0 or higher

WARNING!!

The use of poor quality water will invalidate your warranty.

CNV-14E

Cold

Water

Water Connections

Rear of Appliance

Figure 6

DRAIN CONNECTION

The steam vent assemblies are constructed of 2” DWV copper piping reduced to 1-1/2 DWV pipe. If the vent system is not purchased as an option (R9381), Blodgett Combi recommends plumbing the oven as shown in Figure 7.

The steam vent should be run to an open floor drain avoiding flexible hose that could sag and allow trapped water to accumulate. The customer must supply the piping from the oven to the drain.

Connect the drip pan drain to the steam vent with 1.125 I.D. hose.

Use the drain vent assembly and a 2” (50.8mm) pipe for drain connection.

Coupling

Customer supplied 2” (50.8mm) drain waste vent piping

Figure 7

Specific water/drain connection for City of Los Angeles

1.Each drain line from the appliance shall be routed without dips or sags to terminate above the flood level rim of an approved indirect waste receptor.

2.The appliance shall be installed in accordance with the manufacturer’s printed instructions and the LAPC and LAMC, 1999 editions.

3.A backflow protection device shall be installed on the potable water system directly ahead of the appliance. The backflow protection device shall be any of the following: an approved pressure type vacuum breaker installed at least 12” above the highest point of use, a double check valve backflow preventer or a reduced pressure principal backflow preventer.

9

Installation

Electrical Connections

All Models

NOTE: Electrical connections must be performed by a qualified installer only.

Before making any electrical connections to these appliances, check that the power supply is adequate for the voltage, amperage, and phase requirements stated on the rating name plate mounted on the appliance.

The circuit breaker that is used to provide power to this appliance must have a minimum of .076” (3mm) contact spacing. The circuit breaker must meet all Local and National installation standards.

All appliances must be installed in accordance with Local or National Electrical codes.

A wiring schematic is located on the inside of the removeable side panel.

NOTE: Disconnect the power supply to the appliance before servicing.

WARNING!!

Improper installation will invalidate your warranty.

Electric Models

A strain relief for the power supply cord is required. The installer must supply a cord bushing that meets all Local and National installation standards.

Gas Models

U.S. and Canadian Installations

A power cord (115V or 230V) is supplied with a plug attached. Plug the power cord into the desired receptacle.

Export Installations

A 230V 13 amp fused power cord is supplied with a plug attached. Plug the power cord into the appropriate receptacle.

See Figure 8 for power cord routing and connections to the line filter.

WARNING!!

If the supply cord is damaged, it must be replaced by a special cord or assembly available from the manufacturer or its service agent.

 

Power Connections

Line Filter

 

 

 

Line Filter

 

 

 

L1 ---

 

 

Brown wire

 

Line Filter

 

 

Mounting Bracket

 

 

Power Cord with

N ---

 

Blue wire

Strain Relief

13 amp fuse

 

 

Ground Symbol ---

 

 

 

 

Green/Yellow wire

Rear view of BC14G

Export Installations

with rear panel removed

Figure 8

10

Installation

Gas Connections

GAS PIPING

A properly sized gas supply system is essential for maximum oven performance. Piping should be sized to provide a supply of gas sufficient to meet the maximum demand of all appliances on the line without loss of pressure at the equipment.

Example:

NOTE: BTU values in the following example are for natural gas.

You purchase a CNV14G to add to your existing cook line.

1. Add the BTU rating of your current appliances.

Pitco Fryer

120,000

BTU

6 Burner Range

60,000

BTU

Deck Oven

50,000

BTU

Total

230,000

BTU

2.Add the BTU rating of the new oven to the total.

Previous Total

230,000

BTU

CNV14G

65,000

BTU

New Total

295,000

BTU

3.Measure the distance from the gas meter to the cook line. This is the pipe length. Let’s say the pipe length is 30’ (9 m) and the pipe size is 1” (2.54 cm).

4.Use the appropriate table to determine the total capacity of your current gas piping.

The total capacity for this example is 375,000 BTU. Since the total required gas pressure, 295,000 BTU is less than 375,000 BTU, the current gas piping will not have to be increased.

NOTE: The BTU capacities given in the tables are for straight pipe lengths only. Any elbows or other fittings will decrease pipe capacities. For example: a schedule 40 1-1/2” ell fitting has an equivalent capacity of 4.2” (10.2 cm) of straight pipe. Contact your local gas supplier if you have any questions.

Maximum Capacity of Iron Pipe in Cubic Feet

of Natural Gas Per Hour

(Pressure drop of 0.5 Inch W.C.)

Pipe

 

Nominal Size, Inches

 

Length

 

 

 

 

 

3/4”

1”

1-1/4”

1-1/2”

2”

(ft)

 

 

 

 

 

10

360

680

1400

2100

3950

20

250

465

950

1460

2750

 

 

 

 

 

 

30

200

375

770

1180

2200

40

170

320

660

990

1900

50

151

285

580

900

1680

 

 

 

 

 

 

60

138

260

530

810

1520

 

 

 

 

 

 

70

125

240

490

750

1400

 

 

 

 

 

 

80

118

220

460

690

1300

 

 

 

 

 

 

90

110

205

430

650

1220

 

 

 

 

 

 

100

103

195

400

620

1150

From the National Fuel Gas Code Part 10 Table 10-2

Maximum Capacity of Pipe in Thousands of BTU/hr of Undiluted P.P. Gas at 11” W.C.

(Pressure drop of 0.5 Inch W.C.)

Pipe Length

Inside Diameter, Inches

(ft)

 

 

 

3/4”

1”

1-1/2”

 

 

 

 

 

10

608

1146

3525

20

418

788

2423

 

 

 

 

30

336

632

1946

40

287

541

1665

 

 

 

 

50

255

480

1476

 

 

 

 

60

231

435

1337

 

 

 

 

70

215

404

1241

 

 

 

 

80

198

372

1144

 

 

 

 

90

187

351

1079

100

175

330

1014

From the National Fuel Gas Code Part 10 Table 10-15

11

Installation

Gas Connections

PRESSURE REGULATION AND TESTING

The gas pressure to the appliance must be rated for each appliance while the burners are on. A sufficient gas pressure must be present at the inlet to satisfy these conditions. Refer to the table below for correct gas pressure.

Each appliance has been adjusted at the factory to operate with the type of gas specified on the rating plate attached to the right side of the appliance.

Each oven is supplied with a regulator to maintain the proper gas pressure. The regulator is essential to the proper operation of the oven and should not be removed.

DO NOT INSTALL AN ADDITIONAL REGULATOR WHERE THE UNIT CONNECTS TO THE GAS SUPPLY UNLESS THE INLET PRESSURE IS GREATER THAN 14” W.C. (1/2 PSI) (37mbar).

The oven and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45kPa).

The oven must be isolated from the gas supply piping system by closing its individual manual

shutoff valve during any pressure testing of the gas piping system at test pressures equal or less than 1/2 psig (3.45kPa).

Prior to connecting the appliance, gas lines should be thoroughly purged of all metal filings, shavings, pipe dope, and other debris. After connection, the appliance must be checked for correct gas pressure.

U.S. and Canadian Installations

Installation must conform with local codes, or in the absence of local codes, with the National Fuel

Gas Code, NFPA54/ANSI Z223.1 ---Latest Edition, the Natural Gas Installation Code CAN/CGAB149.1 or the Propane Installation Code, CAN/ CGA-B149.2 as applicable.

General Export Installations

Installation must conform with Local and National installation standards. Local installation codes and/ or requirements may vary. If you have any questions regarding the proper installation and/or operation of your appliance, please contact your local distributor. If you do not have a local distributor, please call Blodgett Combi at 0011-802-860-3700.

GAS PRESSURE

Gas

Inlet

 

Orifice Size at Sea Level

Manifold Pressure

Type

Pressure

 

 

 

 

 

 

Hot Air

Steam

Hot Air

Steam

 

 

 

 

 

 

 

 

 

 

U.S. and Canadian Installations

 

 

 

 

 

 

 

 

 

 

Natural

7---14” W.C.

 

.0531” dia

.042” dia

3.5” W.C.

3.5” W.C.

 

 

 

 

 

 

 

Propane

12---14” W.C.

 

.032” dia

.026” dia

10.0” W.C.

10.0” W.C.

 

 

 

 

 

 

 

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