Blodgett SN-5G User Manual

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SN-5G, SC-7G and SC-10G

GAS FIRED CONVECTION STEAMER INSTALLATION – OPERATION MAINTENANCE

BLODGETT OVEN COMPANY

www.blodgett.com

44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802) 864-0183

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S00041 Rev A (9/04)

IMPORTANT NOTES FOR INSTALLATION AND OPERATION

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

WARNING: Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing, operating or servicing this equipment.

FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance.

PURCHASER: Instructions to be followed in the event that the operator of this appliance smells gas must be posted in a prominent location. This information shall be obtained by consulting the local gas supplier.

Keep the appliance area free and clear from combustibles.

Do not obstruct the flow of combustion and ventilation air.

Adequate clearances must be maintained for servicing and proper operation.

Do not attempt to operate this unit in the event of a power failure.

This manual should be retained for future reference.

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TABLE OF CONTENTS

DESCRIPTION

PAGE

1.0

Service Connections

...............................................................................................4

2.0

Installation ...............................................................................................................

6

3.0

Performance Check ..............................................................................................

11

4.0

Operation Instructions ............................................................................................

12

5.0

Periodic Maintenance ...........................................................................................

15

6.0

Deliming Procedure ...............................................................................................

18

7.0

Troubleshooting ......................................................................................................

19

3

1.0 SERVICE CONNECTIONS – SN-5G

Unless otherwise specified, Field Wire Electrical Connection to be 120 Volts, 60 Hertz single phase with grounding wire. Furnished with 6 foot cord with 3 prong plug. Maximum amps 2.0.

D DRAIN: 1"IPS piped to open floor drain. No Solid Connection. 24" length before open air gap opening. (No bends or elbows)

GAS CONNECTION: 3/4"IPS supply line required.

G

GENERATOR WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)

C

CONDENSING WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)

WATER QUALITY STATEMENT

Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:

 

 

 

 

Total dissolved solids

Less than 60 PPM

 

 

 

 

 

Total alkalinity

Less than 20 PPM

 

 

 

 

 

Silica

Less than 13 PPM

 

 

 

 

 

Chlorine

Less than 1.5 PPM

 

 

 

 

 

pH Factor

7.0-8.5

 

 

Water which fails to meet these standards should be treated by installation of water conditioner.

 

 

FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODEL

 

 

 

GAS SUPPLY

 

 

 

 

 

 

 

 

 

 

BTU/HR.

kW/HR.

 

SUPPLY PIPE PRESSURE (W.C.)

 

SN-5G

45,000

13.2

 

Natural

Propane

 

 

6.0-13.8"(150-350mm)

11.0-13.8"(280-350mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

24 [610]

1.75 [44]

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 [76] G

 

 

 

 

 

 

 

 

 

 

 

3.50 [89]

 

 

 

 

 

 

 

 

[29]

 

D

5.25 [133]

 

DIMENSIONS ARE IN INCHES [MM].

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 [229]

SAFETY RELIEF

 

 

 

 

 

 

 

1.12

 

 

 

 

 

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SAFETY RELIEF

[305]

 

 

 

 

 

 

 

 

VALVE

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32 [813]

 

G

C

5 [127]

 

23.19 [589]

40.38 [1026]

 

 

 

D

[25]1

 

4[102]

 

 

 

 

 

 

 

 

 

 

 

[425]

 

 

 

 

 

 

 

 

[44]

 

 

16.75

 

 

 

4

[102]

16 [406]

 

 

1.75

 

 

 

 

 

 

MIN.

 

 

 

 

4

SERVICE CONNECTIONS – SC-7G and SC-10G

Unless otherwise specified, Field Wire Electrical Connection to be 120 Volts, 60 Hertz single phase withgrounding wire. Furnished with 6 foot cord with 3 prong plug. Maximum amps 4.0.

DRAIN: 1"IPS piped to open floor drain. No Solid Connection. 24" length before open air gap opening. (No bends or elbows)

GAS CONNECTION: 3/4"IPS supply line required.

GENERATOR WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)

CONDENSING WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa)

WATER QUALITY STATEMENT

Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:

Total dissolved solids

Less than 60 PPM

Total alkalinity

Less than 20 PPM

Silica

Less than 13 PPM

Chlorine

Less than 1.5 PPM

pH Factor

7.0-8.5

Water which fails to meet these standards should be treated by installation of water conditioner.

FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.

MODEL

 

 

GAS SUPPLY

BTU/HR.

kW/HR.

 

SUPPLY PIPE PRESSURE (W.C.)

 

 

SC-7G

90,000

26.4

Natural - min. 6"(152mm)

 

Propane - min. 11"(279mm)

 

 

 

 

 

 

SC-10G

90,000

26.4

Natural - min. 6"(152mm)

 

Propane - min. 11"(279mm)

DIMENSIONS ARE IN INCHES [MM]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 [610]

 

1 [25]

 

 

 

 

 

 

 

 

2.75 [70] SC-7G

 

12 [305]

 

 

 

 

 

 

1.75 [44] SC-10G

 

 

 

 

 

 

 

4 [102] SC-7G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3 [76] SC-10G

 

 

 

 

 

 

 

 

 

9 [229]

3.50 [89]

 

SAFETY RELIEF

 

 

 

 

6.25 [159] SC-7G

 

 

 

 

 

 

 

 

 

 

 

 

5.25 [133] SC-10G

 

VALVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 [508]

1 [25]

 

 

SC-7G

SC-10G

76.25 [1937] SC-7G

76.13 [1934] SC-10G

4 [102]

1.13 [29]

33 [838]

 

 

 

SC-10G

 

 

 

 

 

 

 

 

1.75 [44]

 

 

 

 

 

 

 

REAR FLANGED FOOT DETAIL

 

[152]6

12 [305] SC7G-

10 [254]

23.75[603]

21.63[549]

 

 

16.75 [425]

 

2 EQUALLY SPACED

 

 

 

 

Ø7/16" [11mm] HOLES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON 2.5 [63] B.C.

 

 

 

 

 

 

 

5

 

 

 

2.0 INSTALLATION

GENERAL

NOTICE: If this equipment is being installed at over 2,000 feet altitude and was not so specified on order, contact service department. Failure to install with proper orifice sizing may void the warranty.

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

National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1, as applicable.

1.The appliance and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at pressures in excess of ½ psi (3.5 kPa).

2.The appliance must be isolated from the gas supply piping system by closing its individual manual shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ½ psi (3.5 kPa).

Electrical grounding must be provided in accordance with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.2, as applicable.

Ventilation must be provided in accordance with local codes, or in the absence of local codes, with ANSI/NFPA 96 Standard for Ventilation and Fire Protection of Commercial Cooking Operations.

WARNING: Electrical grounding instructions - units equipped with a threeprong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three-prong receptacle. Do not cut or remove the grounding prong from this plug. (120 volt units only).

WIRING DIAGRAM FOR APPLIANCE IS LOCATED ON RIGHT HAND SIDE PANEL OF THE COOKER CABINET.

2.1EXHAUST FANS AND CANOPIES:

Canopies are set over ranges, ovens, kettles, etc., for ventilation purposes. It is recommended that a canopy extend 6" past appliance and be located 6' 6" from the floor. Filters should be installed at an angle of 45 degrees or more with the horizontal. This position prevents dripping of grease and facilitates collecting the run-off grease in a drip pan, usually installed with the filter. A strong exhaust fan tends to create a vacuum in the room and may interfere with burner performance or may extinguish pilot flames. Makeup air openings approximately equal to the fan area will relieve such vacuum. In case of unsatisfactory performance on any appliance, check with the exhaust fan in the “OFF” position.

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