Vulcan Materials VSX42RT user manual

User manual for the device Vulcan Materials VSX42RT

Device: Vulcan Materials VSX42RT
Category: Convection Oven
Manufacturer: Vulcan Materials
Size: 7.39 MB
Added : 9/18/2013
Number of pages: 80
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Abstracts of contents
Summary of the content on the page No. 1

SERVICE MANUAL
VSX BOILER BASE SERIES
CONVECTION STEAMERS
(GAS, ELECTRIC, DIRECT AND REGENERATED)
VSX24G ML-52163 VSX24D ML-52827
VSX36G ML-52360 VSX36D ML-52830
VSX42GT ML-52376 VSX42DT ML-52834
VSX24E ML-52164 VSX36R ML-52831
VSX36E ML-52829 VSX42RT ML-52835
VSX42ET ML-52833
VSX24G SHOWN
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified. If you have attended a Vulcan Service School for this
product, you m

Summary of the content on the page No. 2

VSX SERIES STEAMERS TABLE OF CONTENTS GENERAL ............................................................................. 4 Introduction ........................................................................ 4 Compartment Pan Capacity ........................................................ 4 Model Designations .............................................................. 4 Specifications ...................................................................... 5 Gas Steamers .................

Summary of the content on the page No. 3

VSX SERIES STEAMERS ELECTRICAL OPERATION .............................................................. 30 Water Level Controls ................................................................ 30 Solid State - Low level Cut-Off & Differential Control .......................................... 30 Electro Mechanical - Low level Cut-Off & Differential Control .............................. 32 Sequence of Operation .............................................................. 34 Gas Models .......

Summary of the content on the page No. 4

VSX SERIES STEAMERS - GENERAL GENERAL Boiler Code Descriptions INTRODUCTION Vulcan-Hart incorporates redundant controls in compliance with California Code (Cal-Code) and General CSD-1 as an option on steam equipment when required by state and/or local building code This manual is applicable for all models listed on the requirements. Descriptions of the codes are listed cover page. A convection steamer on a 42 inch below. base with a tilting kettle is pictured below for reference. Cal-Code Constr

Summary of the content on the page No. 5

VSX SERIES STEAMERS - GENERAL SPECIFICATIONS Gas Steamers LINE PRESSURE MANIFOLD INPUT AMPS (INCHES W.C.) PRESSURE (BTU/HR) (MAX) LOAD (INCHES W.C.) NATURAL PROPANE (WATTS) MAX 120V MODEL NAT. PROP. NAT. PROP. RECOMMEND MIN RECOMMEND MIN 60HZ VSX24G 200,000 200,000 4.0 10.0 7.0 5.0 11.0 11.0 360 3.0 200,000 200,000 4.0 10.0 7.0 5.0 11.0 11.0 VSX36G 360 3.0 240,000 240,000 4.0 10.0 7.0 5.0 11.0 11.0 14.0 200,000 200,000 4.0 10.0 7.0 5.0 11.0 11.0 VSX42GT 360 3.0 240,000 240,000 4.0 10.

Summary of the content on the page No. 6

VSX SERIES STEAMERS - OPERATION Water Supply WATER CONDITIONING Supply pressure should be 20-80 psig Furnishing the boiler with soft water to reduce scale In line strainer for supply line (Not Supplied) formation is important. Scale formation will reduce Supply connection cold steam output, cause premature component failure, Total dissolved solids (TDS)* less than 60 ppm and shorten equipment life. Most water supplies Total alkalinity less than 20 ppm contain scale producing minerals such as Cal

Summary of the content on the page No. 7

VSX SERIES STEAMERS - OPERATION STEAMER OPERATION 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 EACH DOOR. B. On Models with Automatic Ignition - CABINET BASE BOILERS The knob on the gas combination control valve has two positions (On-Off) for Ensure that all utility connections to the steamer control of main burners and pilot. For the have been made and are turned on. a

Summary of the content on the page No. 8

VSX SERIES STEAMERS - OPERATION Electrically Powered Steam Boiler BOILER BLOWDOWN AND Open the cabinet door and turn main power switch STEAMER SHUT OFF ON. The red light will illuminate, water will begin filling the boiler and the blowdown solenoid valve Turn the steamer off at least once daily and blow will close. The boiler should fill, in 4 to11 minutes. down the boiler to remove sediments, scalants and Observe water level gauge glass to verify that water lime build-up in the boiler. Always b

Summary of the content on the page No. 9

VSX SERIES STEAMERS - OPERATION 5. When timer knobs reach "0", buzzers will COOKING COMPARTMENT sound, steam generation will cease, cooking CONTROLS lights will go off and ready lights will come on. To silence buzzers, turn timer knobs to off position. When the steam pressure in the cooking compartment manifold reaches approximately 3 psi, 6. During a cooking cycle, the heating system will the cooking compartment pressure switch closes, cycle on and off as necessary to maintain suppling power to

Summary of the content on the page No. 10

VSX SERIES STEAMERS - COMPONENT FUNCTION AND LOCATION COMPONENT FUNCTION AND LOCATION Cycling Pressure Switch - controls boiler pressure CABINET BASE BOILER between prescribed limits by turning the heat source CONTROLS on and off. High Limit Pressure Switch - a switch of identical WARNING: THE STEAMER AND ITS PARTS ARE design to the cycling pressure switch but used as a high limit. The pressure settings are at higher and HOT. USE CARE WHEN OPERATING, CLEANING lower limits than the cycling pressu

Summary of the content on the page No. 11

VSX SERIES STEAMERS - COMPONENT FUNCTION AND LOCATION Pressure Gauge - indicates boiler steam pressure. Normal operating pressures are listed below. STEAMER PSI TYPE Gas 8 -10 Electric 11 - 13 Direct 10 - 12 Regenerated 10 - 12 Drain - drains steam condensate and water from cooking compartments and boiler. Check Valve - On models with the delime piping assembly option, prevents the ejection of hot water and steam out of the delime funnel if the manual delime fill valve were to be opened. Delime

Summary of the content on the page No. 12

VSX SERIES STEAMERS - COMPONENT FUNCTION AND LOCATION Page 12 of 80

Summary of the content on the page No. 13

VSX SERIES STEAMERS - COMPONENT FUNCTION AND LOCATION Page 13 of 80

Summary of the content on the page No. 14

VSX SERIES STEAMERS - COMPONENT FUNCTION AND LOCATION Steam Solenoid Valve - when energized, opens to COOKING COMPARTMENT allow steam into the cooking compartment (normally CONTROLS closed valve). Compartment Pressure Switch - supplies power to WARNING: the controls only after the steam pressure rises THE STEAMER AND ITS PARTS ARE above 2.3 psi to close the compartment pressure HOT. USE CARE WHEN OPERATING, CLEANING switch. The switch remains closed as long as steam OR SERVICING THE STEAMER. T

Summary of the content on the page No. 15

VSX SERIES STEAMER - SERVICE PROCEDURES SERVICE PROCEDURES WARNING: CERTAIN PROCEDURES IN THIS SECTION REQUIRES ELECTRICAL TEST OR MEASUREMENTS WHILE POWER IS APPLIED TO THE MACHINE. EXERCISE EXTREME CAUTION AT ALL TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER, ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST. NOTE: Boiler water capacities vary between seven CABINET BASES to nine gallons for both gas and electric models depending on the boiler size and BTU/KW rating. BOILER NO

Summary of the content on the page No. 16

VSX SERIES STEAMER - SERVICE PROCEDURES 10. Cooking compartment timers are to be in the OFF position. Turn the boiler switch ON and open water valve if necessary. 11. Boiler is to operate under pressure for 90 minutes or per the instructions for the chemical in use. 12. Drain boiler by normal methods. Refill boiler and allow heat until fully pressurized. 13. Repeat step 12 three times. 14. The steamer is now ready for normal operation. Deliming Only (Models with Deliming Port Assembly) Boiler de

Summary of the content on the page No. 17

VSX SERIES STEAMER - SERVICE PROCEDURES C. Does the HL LED go out and the HL relay 4. Clean probe thoroughly, removing ALL deposits de-energize, allowing the contact state to from the insulator. Do not use an abrasive on switch back to its starting condition after the insulator; use a soft cloth. the water level reaches the HL probe? 5. Inspect through the probe socket for the 4. If water is in the boiler but is not being detected presence of water. Water must drain from the by the water level p

Summary of the content on the page No. 18

VSX SERIES STEAMER - SERVICE PROCEDURES High Limit Thermostat Remove the remaining plumbing and electrical connections from the boiler to the controls. Remove WARNING: DISCONNECT THE ELECTRICAL the bolts securing the boiler to the frame and lift it POWER TO THE MACHINE AT THE MAIN out. Reverse procedure to install a new boiler. CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT Older Steamer Models - Blow down the boiler and BOX INDICATING THE CIRCUIT IS BEING allow to cool, if necessary. Turn off all util

Summary of the content on the page No. 19

VSX SERIES STEAMER - SERVICE PROCEDURES 4. Remove the stem locking nut to remove the Newer steamer models use a plunger type rod that stem from the valve body. raises and lowers to permit steam/water flow out of boiler. If debris has accumulated around the water 5. All parts are now accessible for inspection and orifice, the plunger may not seat properly to close cleaning. off the opening. If this symptom is suspect, remove NOTE: If internal solenoid parts appear to be the solenoid as outlined i

Summary of the content on the page No. 20

VSX SERIES STEAMER - SERVICE PROCEDURES Steamer Achieves Pressure Slower Than Normal D. Gas orifice clogged or obstructed around air shutter. It is possible for debris to If the boiler requires more than 15 minutes (20 become lodged in the small gas orifice minutes for regenerated models) to achieve normal opening over time. Clean-out the gas operating pressure as listed in below, then check the orifice using a round metal instrument of following conditions. the same hole diameter or slightly sm


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