Blodgett SC-10E User manual

1
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: [phone] Fax: [phone]
S00058 Rev B (7/10)

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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.

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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

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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
Ø
C
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
63
45.9
57.8
42.1
36.5
26.6 21.1
28.9
kW
17.5
24 - Std 3
3
PHASE 220V 240V 380V 480V
AMPS PER LINE
83.3 78.7 72.2 45.6 36.130 - Opt 3

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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.

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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.

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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.

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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.

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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.

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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.