Vulcan VSX3 Installation Manual

INSTALLATION & OPERATION MANUAL FOR

ELECTRIC COUNTER CONVECTION STEAMERS

MODELS VSX3, VSX4 & VSX5

ML'S - 52396, 52397, 52398, & 52399

FORM 30896 (10-94)

MODEL VSX3 SHOWN

VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791

Installation, Operation, and Care of

MODELS VSX3, VSX4, VSX5

ELECTRIC COUNTER CONVECTION STEAMERS

KEEP THIS MANUAL

GENERAL

The VSX 3, 4, and 5 Steamers are single compartment electric pressureless steam cookers with an internal electric steam generator that maintains water temperature at approximately 205°F. VSX3 is rated 7.5 kw as standard; 10 kw is optional. VSX4 is rated 10 kw. VSX5 is rated 15 kw.

At high altitude locations a lower temperature is required to achieve atmospheric steaming. Contact your Vulcan-authorized service office to have the thermostat adjusted if the steamer will be operated at high altitudes.

INSTALLATION

UNPACKING

Immediately after unpacking the steamer, check for possible shipping damage. If the steamer is found to be damaged, 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 2" on the sides and 6" on the back for proper air circulation. Allow adequate access for operating and servicing the steamer (36" at the front of the steamer and 15" above the steamer).

LEVELING FEET (Standard) OR 4" ADJUSTABLE LEGS (Optional)

Thread the four 2" leveling feet shipped in a bag inside the steamer cabinet into the threaded holes on the bottom corners of the steamer. Or, thread the four optional 4" adjustable legs into the threaded holes on the bottom corners of the steamer.

LEVELING

Using a spirit level or pan of water in the bottom of the steamer, adjust the leveling feet or the feet on the adjustable legs to level the steamer front-to-back and side-to-side. 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.

ANCHORING STEAMER (Without Legs)

1. Place steamer in the desired location on the

20"

leveled counter top and mark four corners. Remove the steamer and drill indicated in Fig. 1.

2. Apply a bead of RTV or other equivalent sealant around the bottom perimeter edge of the steamer.

/2" holes as

Drill 1/2" holes through counter top

27 1/2"

If anchoring the steamer, this bottom seal is necessary to meet NSF requirements.

23 1/2"

3. Set steamer on counter and bolt down securely

with

/8 - 16 bolts (not supplied).

STACKING KIT

Mark 4 corners on counter top

Follow instructions in the stacking kit when installing stacked convection steamers.

ELECTRICAL CONNECTION

PL-50819

24"

Fig. 1

WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH APPLICABLE

PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES.

WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT YOU ARE WORKING ON THE CIRCUIT.

The wiring diagram is located on the right side panel as you face the steamer.

ELECTRICAL DATA

Rated Amps

Total KW Volts / Hz / Ph

7.5 208 / 60 / 1

7.5 240 / 60 / 1

7.5 208 / 60 / 3

7.5 240 / 60 / 3

7.5 480 / 60 / 3

10 208 / 60 / 1

10 240 / 60 / 1

10 208 / 60 / 3

10 240 / 60 / 3

10 480 / 60 / 3

15 208 / 60 / 1

15 240 / 60 / 1

15 208 / 60 / 3

15 240 / 60 / 3

15 480 / 60 / 3

Circuit Size (Minimum) & Fuse / Circuit Breaker Size (Maximum) compiled in accordance with the National Electrical Code (ANSI/NFPA 70), 1993 Edition.

Kilowatts Per Phase

L1 - L2 L2 - L3 L1 - L3 L1 L2 L3

2.5 2.5 2.5 21 21 21

2.5 2.5 2.5 18 18 18

2.5 2.5 2.5 9 9 9

3.3 3.3 3.3 28 28 28

3.3 3.3 3.3 24 24 24

3.3 3.3 3.3 12 12 12

5 5 5 424242

5 5 5 363636

5 5 5 181818

3 Phase

Amps Per Line Wire

1 Phase

Amps

Circuit Size

(Amps)

100

Fuse Size or

Circuit Breaker Size *

(Amps)

50 8

45 8

30 10

25 14

15 16

70 8

60 8

40 10

35 10

15 16

100 6

90 6

60 8

50 8

25 14

* Dual Element Time-Delay Fuse or

Inverse Time Circuit Breaker

90°C Copper

Wire Size

PLUMBING CONNECTIONS

WARNING: PLUMBING CONNECTIONS MUST COMPLY

WITH APPLICABLE SANITARY, SAFETY AND PLUMBING

DRAIN VENT

BY CUSTOMER

CODES.

Connect the water supply line to the

/8" NPT (internal thread) copper tube inlet. The 3/8" water line supplies water to both the generator tank and the cooling system where steam is condensed before entering the drain line. Install the line strainer provided. A manual shutoff valve must be

20 (500)

MIN.

provided convenient to the steamer.

DRAIN CONNECTIONS

The drain connection (Fig. 2) must be 1" IPS down,

2 (51)

PL-50880

1 1/4 NPT TO OPEN

GAP DRAIN

BY CUSTOMER

preferably with one elbow only, maximum length of 6 feet, and piped to an open gap type drain. CAUTION: In order

Fig. 2

to avoid any back pressure in the steamer, do not connect solidly to any drain connection.

WATER QUALITY

The water supply connected to this steamer should contain no more than 2.0 grains of hardness per gallon with pH from 6.5 to 8.0. This degree of hardness and pH can easily be obtained with the use of a properly maintained water softener.

Water supplies vary from one location to another. 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, page 12.

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

Equipment

, NFPA standard No. 96 (latest edition).

Vapor Removal from Cooking

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