Blodgett SC-10E Manuale utente

SC-7E and SC-10E

ELECTRIC CONVECTION STEAMER

INSTALLATION –OPERATION –MAINTENANCE

BLODGETT OVEN COMPANY

www.blodgett.com

44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802) 864-0183

S00058 Rev B (7/10)

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.

Adequate clearances must be maintained for servicing and proper operation.

Intended for commercial use only. Not for household use.

This manual should be retained for future reference.

TABLE OF CONTENTS

DESCRIPTION PAGE

1.0 Service Connections ............................................................................................. 4

2.0 Installation Instructions........................................................................................... 5

3.0 Operation ............................................................................................................. 9

4.0 Cleaning .............................................................................................................. 13

5.0 Maintenance ...................................................................................................... 15

6.0 Troubleshooting.................................................................................................... 16

7.0 Service................................................................................................................ 17

1.0 SERVICE CONNECTIONS

28 [711]

6 [152] 1.5 [38]

1 [25]

5 [127] 2.62 [67]

16.62 [422]

58.75 [1492] SC-7E

88.5 [1740] SC-10E

SC-7E

SC-10E

19.88 [505]

19.5 [495] 2.19 [56]2.19 [56]

REAR FLANGED FOOT DETAIL

7/16" [11mm] HOLES

ON 2.5 [63] B.C.

2 EQUALLY SPACED

ELECTRICAL CONNECTION: 1-1/8" hole for electrical connection. Rating to be as specified on data plate.

DRAIN: 1"IPS to open floor drain. No solid connection. Use copper only, 24" length before open air gap opening (No bends or elbows).

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

TOTAL DISSOLVED SOLIDS

TOTAL ALKALINITY

SILICA

CHLORIDE

pH FACTOR

WATER WHICH FAILS TO MEET THESE STANDARDS SHOULD BE TREATED BY INSTALLATION OF A WATER CONDITIONER.

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

LESS THAN 60 PPM

LESS THAN 20 PPM

LESS THAN 13 PPM

LESS THAN 1.5 PPM

7.0-8.5

WITHIN THESE GENERAL GUIDE LINES:

9 [229]

16.75 [425]

33 [838]

1.38 [35]

24 [610]

1.12 [29]

27.38 [695]

1/2-NPT DELIME INLET

27.69 [703]

2.19 [56]

3.94 [100]

3 [76]

1.75 [45]

ELECTRICAL CHARACTERISTICS

SC-7E

MODEL

SC-10E

208V

66.6

48.6

45.9

57.8

42.1

36.5

26.6 21.1

28.9

17.5

24 - Std 3

PHASE 220V 240V 380V 480V

AMPS PER LINE

83.3 78.7 72.2 45.6 36.130 - Opt 3

2.0 INSTALLATION INSTRUCTIONS

This steamer was inspected before leaving the factory. The transportation company

assumes full responsibility for safe delivery upon acceptance of the shipment.

Immediately after unpacking the steamer, check for possible damage. If the steamer is

found to be damaged after unpacking, save the packaging material and contact the

carrier within 15 days of delivery.

Prior to installation, verify that the electrical service agrees with the specifications on the

machine data plate which is located on the left side panel.

LOCATION

Allow space for plumbing and electrical connections. Minimum clearances are 3" (76

mm) on the sides and 6" (152 mm) on the back for proper air circulation. Allow adequate

access for operating and servicing the steamer, 36" (915 mm) at the front of the steamer

and 15" (381 mm) above the steamer.

LEVELING AND ANCHORING

1. Using a spirit level or pan of water in the bottom of the steamer, adjust the leveling

feet to level the steamer front-to-back and side-to-side.

2. Mark hole locations on the floor through the anchoring holes provided in the flanged

adjustable feet. Remove the steamer and drill holes at marked locations on the floor.

Insert proper anchoring devices.

3. Set steamer back in proper position.

4. Install bolts through anchoring holes and into anchors to secure the steamer to the

floor. Seal bolts and flanged feet with Silastic.

5. After the drain is connected, check for level by pouring water onto the floor of the

compartment. All water should drain through the opening at the back of the

compartment cavity.

ELECTRICAL CONNECTION

WARNING: Electrical grounding connections must comply with

applicable portions of the National Electrical code and/or other local

electric codes.

WARNING: Disconnect the power supply to the appliance before

cleaning or servicing.

Make electrical connection through the 1-1/8" (29 mm) diameter hole provided using 3/4"

(19mm) trade size conduit. Refer to the wiring diagram located inside the right side

panel. Use 90°C minimum insulated wire.

PLUMBING CONNECTIONS

WARNING: Plumbing connections must comply with applicable

sanitary, safety, and plumbing codes.

The water supply inlets are provided with 3/8" (10 mm) compression fittings for 3/8" O.D.

copper tubing. The water supply line pressure should be 25 - 50 psi (170 - 345 kPa) for

each line. The water supply to the generator tank is separate from the water supply to

the cooling system where steam is condensed before entering the drain line.

Install line strainers (not provided). A manual shutoff valve for each supply line must be

provided convenient to the steamer.

We recommend treated water feeding the boiler inlet supply, and untreated water

feeding the cooling system inlet. Hook-ups are labeled on the back of the steamer.

DRAIN CONNECTIONS

The drain connection must be 1" (25 mm)

IPS down, preferably with one or two

elbows only, maximum length 6 feet (1830

mm) and piped to an open gap type drain

(Figure 1). Drain pipe should be either iron

or copper. DO NOT use PVC pipe –PVC

pipe may lose its rigidity or glue may fail.

CAUTION: To avoid

injury or damage to the

steamer, do not connect

solidly to any drain

connection.

WATER QUALITY

The water supply connected to the steam generator should meet the following

guidelines:

Failure to comply with water quality statement on page 4 may void the warranty.

Water supplies vary from one location to another. Other factors affecting steam

generation are iron content, chlorides, and dissolved gasses. A local water treatment

specialist should be consulted before installing any steam generating equipment.

Untreated water contains scale producing minerals which can precipitate onto the

surfaces in the boiler. Due to the temperatures in the boiler, the minerals can bake onto

the surfaces and components. This can result in early component failure and reduced

product life.

Mineral scale on components causes several problems:

1. The surfaces of the heating devices become coated with scale, reducing the heat

transfer efficiency. This can produce hot spots on the heating elements and result in

premature failure.

2. The water level probes become coated with scale. Scale will bridge across the probe

insulator from the metal extension which senses the water level in the boiler shell.

Once this scale becomes wet, the water level control is unable to maintain the proper

water level in the boiler. This situation may cause an electric heating element to fail if

the element is not adequately covered by water.

Strainers and filters will not remove minerals from the water.

Refer to REMOVAL OF LIME SCALE DEPOSITS section in this manual.

VENT HOOD

Some local codes may require the steamer to be located under an exhaust hood.

Information on the construction and installation of ventilating hoods may be obtained

from NFPA Standard No. 96, Vapor Removal from Cooking Equipment, (latest edition).

START-UP TEST

WARNING: The steamer and its parts are hot. Use care when

operating, cleaning or servicing the steamer. The cooking

compartment contains live steam. Stay clear while opening the door.

Once the steamer is installed and all mechanical connections have been made,

thoroughly test the steamer before operation.

1. Check that proper water, drain, and electrical connections have been made.

2. Turn main power switch ON. After approximately 15 minutes, the READY light

should come on, indicating that the water temperature is 205°F (96°C).

3. When the READY light comes on, set the timer at 5 minutes. With door open,

observe that no steam is entering the compartment and the COOKING light is OFF.

4. Close compartment door. The COOKING light should now be lit and steam should be

heard entering the compartment after about 45 seconds (5 minutes if boiler is

empty).

5. Check drain line to ensure that water from the cold water condenser is flowing

through the drain line.

6. Open compartment door and observe that steam supply to the chamber is cut off

(READY light should again come on and COOKING light goes off).

7. Close compartment door and let cooking cycle finish. When the timer returns to the

“O” position, a buzzer will sound, signaling the end of the cooking cycle. To silence

the buzzer, turn the dial timer to OFF.

8. Complete the above steps for each cooking compartment.

9. To shut the steamer down, turn the main power switch OFF and leave the

compartment doors slightly open to allow the inside to dry out.

3.0 OPERATION

WARNING: Live steam and accumulated hot water in the

compartment may be released when the door is opened.

WARNING: An obstructed drain can cause personal injury or

property damage.

CONTROLS

Main Power Switch

ON - The boiler will automatically fill and begin heating to the preset

temperature.

OFF - The boiler will drain.

DELIME - Closes the drain valve while CLR liquid is being poured into the

generator during the delime procedure.

Ready Light - Indicates the temperature has reached 205°F and that the

steamer is ready to begin cooking.

Cooking Light - Indicates that a cooking cycle is in progress.

Timer - Set the cooking time (0 to 60 minutes). Steam cooking will begin

when the door is closed. The cooking cycle will be interrupted if

the door is opened during the cooking cycle; resume cooking by

closing the door.

When done, a buzzer sounds and steam supply to the cooking

chamber will cease. Turn the timer OFF to stop the buzzer.

3.0 OPERATION (Continued)

BEFORE FIRST USE

Clean the protective oils from all surfaces of the steamer. Use a non-corrosive, grease

dissolving commercial cleaner, following manufacturer’s directions. Rinse thoroughly and

wipe dry with a soft clean cloth.

PREHEAT

Turn the main power switch ON. When the READY light comes on, set the timer to 1

minute to preheat the compartment. This should be done when the steamer is first used

for the day or whenever the chamber is cold. The door should be closed during the

preheat cycle. The COOKING light will be lit. When the buzzer sounds, set the timer to

the OFF position. The steamer is now ready to cook.

COOK

With compartment preheated and READY light ON, place pans of food into the

compartment and close the door. Set timer to desired cooking time. (The cooking cycle

may be interrupted at any time by opening the door. To resume operation, close the

door.) Steam will flow into the compartment and the COOKING light will be lit.

At the end of the cooking cycle, the buzzer will sound, the COOKING light will go off and

steam supply to the compartment will cease. Turn the timer to the OFF position to

silence the buzzer.

SHUTDOWN

Turn main power switch OFF. The boiler will automatically blow down. Leave the

compartment door open to allow the inside to dry out. For an extended shutdown, turn

the main power switch OFF; turn power and water supply OFF.

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