Vulcan Hart Oven VSX 9000 User Manual

SERVICE & PARTS MANUAL FOR  
ELECTRIC COUNTERTOP  
CONVECTION STEAMER  
MODEL VSX9000  
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201- 0696, TEL. (502) 778-2791  
FORM 30847 (1-94)  
 
TABLE OF CONTENTS  
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
WATER QUALITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5  
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
ADJUSTMENT FOR HIGH ALTITUDE LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
TEST PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
WATER FLOWS INTO DRAIN DURING SHUTDOWN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
WATER OVERFLOWS INTO COOKING COMPARTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
HEATER ELEMENTS DO NOT COME ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
COOKING CYCLE DOES NOT OPERATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8  
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
- 3 -  
 
Service and Parts Manual  
MODEL VSX9000 ELECTRIC COUNTERTOP  
CONVECTION STEAMER  
PLEASE KEEP THIS MANUAL  
GENERAL  
Your Vulcan Steamer is a one-compartment pressureless steam cooker that has been factory assembled and  
tested to provide for easy installation. It has been factory set when on to maintain water temperature during the  
ready phase at approximately 205°F (just below water boiling point).  
Vulcan steamers are produced with quality workmanship and material. Proper installation, usage and  
maintenance of your steamer will result in many years of satisfactory performance.  
The manufacturer suggests that you thoroughly read this entire manual and carefully follow all of the instructions  
provided.  
WATER QUALITY  
The fact that a water supply is potable is no guarantee that it is suitable for steam generation. 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  
CHLORIDE . . . . . . . . . . . . . . . . . . . . . . . . Less than 30 PPM  
pH FACTOR . . . . . . . . . . . . . . . . . . . . . . . 7-8  
Other factors affecting steam generation are iron content, amount of chloridation and dissolved gases. Water  
supplies vary from state to state and from locations within a state. Therefore, it is necessary that the local water  
treatment specialist be consulted before the installation of 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 as a result of the element not being adequately covered by water.  
Strainers and filters will NOT remove minerals from the water.  
- 4 -  
 
TROUBLESHOOTING  
PROBLEM  
POSSIBLE CAUSES  
Cold water flowing continuously into  
drain during shutdown.  
Either or both solenoid valves are not closing when the steamer  
is OFF. Contact your Vulcan-Hart authorized servicer or Vulcan-  
Hart Company, Louisville, KY (phone number is listed on the  
front of this manual).  
Water overflowing into cooking  
compartment.  
Problem with operating probe caused by either:  
1. Short between probe terminal and body of steamer. Contact  
yourVulcan-HartauthorizedservicerorVulcan-HartCompany  
,
Louisville, KY (phone number is listed on the front of this  
manual).  
2. Excessive scale build-up on probe. Contact your Vulcan-  
Hart authorized servicer or Vulcan-Hart Company, Louisville,  
KY (phone number is listed on the front of this manual). Have  
water quality analyzed and corrected immediately to avoid  
damage to steamer.  
Heater elements do not come on.  
Problemwithcontactorsorthermostatcoatedwithscalant. Contact  
your Vulcan-Hart authorized servicer or Vulcan-Hart Company,  
Louisville, KY (phone number is listed on the front of this manual).  
Have water quality analyzed and corrected immediately to avoid  
damage to steamer.  
- 5 -  
 
SERVICE  
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  
WHEN OPENING DOOR.  
ADJUSTMENT FOR HIGH ALTITUDE LOCATIONS  
Your steamer has been factory set so that when it is ON and during the READY phase, it will maintain water  
temperature in the steam generator tank at approxiamtely 205°F (just below water boiling point). However, for  
high altitude locations, an authorized Vulcan-Hart servicer must adjust the steamer to achieve this temperature.  
To adjust:  
1. Remove side panel and turn control panel power switch to ON.  
2. Open compartment door, and after about 15 minutes, steam will be seen entering the cooking compartment.  
3. Turn thermostat shaft counterclockwise to lower temperature until steam just ceases to enter cooking  
compartment and READY light goes on.  
4. Replace side panel.  
5. Follow TESTING PROCEDURES below.  
TESTING PROCEDURES  
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.  
3. When READY light comes on, set timer to "5-minute" position. With door open, observe that no steam is  
entering compartment.  
4. Close compartment door. The READY light will turn off and steam should be heard entering the  
compartment.  
- 6 -  
 
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).  
7. Close compartment door and let cooking cycle finish. When timer returns to "0-minute" position, a buzzer  
will sound signalling the end of the cooking cycle. The buzzer must be turned off manually by setting timer  
to its OFF position.  
8. To shut the cooker down, turn main power switch OFF and leave the compartment door slightly open.  
WATER FLOWS INTO DRAIN DURING SHUTDOWN  
When steamer is shut down and cold water is running continuously into the open drain, either or both solenoid  
valves did not close when steamer was turned off.  
1. Disassemble solenoid valve(s) and examine for scalant or foreign particles lodged in diaphragm or core tube.  
2. Clean valve(s) thoroughly and reassemble, or replace valve(s).  
WATER OVERFLOWS INTO COOKING COMPARTMENT  
When steamer is first turned on for the day, and the following conditions occur:  
READY light does not come on after about 15 minutes,  
Water begins to overflow into cooking compartment,  
Water fill solenoid valve is open,  
then any or all of these symptoms may indicate a problem with the operating probe due to either:  
1. A short between the operating probe terminal and body of the steamer. Call your Vulcan-Hart authorized  
servicer.  
2. Excessive scale build-up on the operating probe. This acts as an "insulation" and prevents the probe from  
sensing the water level. It is therefore unable to close the water fill (solenoid) valve to shut off the water.  
As a temporary solution, with power OFF, unscrew probes, check visually, and clean or chip off sealant.  
Replace probes.  
This problem is an indication of severe harmful water conditions. Correct immediately to avoid damage to  
the steamer. (See WATER QUALITY in this manual.)  
- 7 -  
 
HEATER ELEMENTS DO NOT COME ON  
When the steamer is turned ON and heater elements do not activate, and therefore, the READY light does not  
come on, then the contactors may be burned out. If a considerable amount of "chattering" of contactors has been  
experienced previously, then the thermostat bulb must be coated with scalant and unable to accurately sense  
water temperature in the boiler, and therefore, unable to control the contactors.  
1. Replace contactors.  
2. Unscrew thermostat bulb, clean off scalants, and screw thermostat bulb back in.  
This problem is an indication of inadequate water quality and is not covered under warranty. Have water quality  
analyzed and corrected immediately to avoid complete malfunction of the steamer.  
COOKING CYCLE DOES NOT OPERATE  
Observe that the READY light is on. When the door is opened, the door switch will place the set cooking time  
on hold and shut down the heater elements. If cooking, steam generating and set time fail to resume when the  
door is closed, then check for a problem with the switch.  
1. Close the door. Both the main power switch and READY light should be ON.  
2. Set timer. READY light will go off and cooking should begin.  
- 8 -  
 
REPLACEMENT PARTS LIST  
REPLACEMENT PARTS ORDERING  
Parts may be ordered only from your authorized parts and service depot.  
The following information must accompany a replacement parts order or it cannot be filled.  
A. Model and style or serial number.  
B. Voltage, amperage and motor phase.  
C. Appliance finish, permafinish, stainless steel, etc. (if applicable to part to be replaced).  
Use rating plate located inside cabinet door panel to help you obtain the information listed above. This plate will  
provide all the necessary information required by the service agency.  
If you need assistance in locating your nearest authorized parts and service depot, contact Vulcan-Hart Product  
Service Department at the telephone number shown on the front cover of this manual.  
ALL SERVICE PERSONNEL  
WHEN SERVICING THIS EQUIPMENT, USE ONLY  
CONTROLS ORIGINALLY SUPPLIED ON THIS EQUIPMENT BY  
VULCAN-HART COMPANY.  
DO NOT SUBSTITUTE.  
SUBSTITUTION OF CONTROLS AS STATED ABOVE  
WILL AUTOMATICALLY VOID THIS WARRANTY  
AND THE CERTIFICATION ASSOCIATED WITH THIS EQUIPMENT.  
- 9 -  
 
VSX9000 STEAMER  
- 10 -  
 
REPLACEMENT PARTS  
ITEM NO.  
PART NO.  
DESCRIPTION  
QTY.  
1
2
3
4
5
6
7
8
9
844191  
844192  
844193  
844194  
840496  
840479  
844195  
844196  
842049  
844197  
840499  
844198  
844199  
881973  
844200  
843814  
843812  
843813  
844201  
844156  
844157  
843818  
836997  
843806  
843781-3  
843807  
844202  
844260  
843803  
843802  
843804  
836926  
840511  
843969  
881978  
836927  
836928  
836929  
844261  
843940  
844262  
843941  
844204  
Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Latch Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Striker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Bushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Gasket Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Door Actuator (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Rack Slide (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2  
Tank Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Component Mounting Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
High Limit Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Buzzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
"O" Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Probe 212" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Probe 312" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Pilot Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Blow Down Solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Element Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Terminal Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
End Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Element Assembly 208V 7.5KW (Select as Required) . . . . . . . . . . . . . . . 1  
Element Assembly 240V 7.5KW (Select as Required) . . . . . . . . . . . . . . . 1  
Element Assembly 480V 7.5KW (Select as Required) . . . . . . . . . . . . . . . 1  
Trough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
"Y" Strainer (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Compression Elbow (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Connector (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Leveler (NS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
(NS) Not Shown  
- 11 -  
 
WIRING DIAGRAM  
- 12 -  
FORM 30847 (1-94)  
PRINTED IN U.S.A.  
 

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