Vulcan-Hart ES25 ML-52642 Pressure Limit Switch, Magnetic Contactor, Electric Heating Elements

Page 10

Low Water Cut-Off

This service is indicated if the distilled water in the steam jacket is at the proper level but the switch does not close to make the circuit across the two top terminal screws (the bottom two are not used), if leakage is observed from the switch case, or if the distilled water level is near the bottom of the gauge glass and the switch does not open.

To replace or to check the switch, remove the lead wires, remove the two screws and the metal cover over the switch. Remove the four flat head screws holding the switch in place, then remove the switch. To check the switch, gently press the bottom of the rocker toward the switch body; this should close the switch. Then press the rocker in the other direction; this should open the switch. When installing the switch, be sure the word "TOP" on the switch is at the top.

To replace the complete unit, remove the lead wires, remove the ten screws around the base of the metal switch cover and pull the complete unit forward. When installing the new unit, be sure the word "TOP" on the switch is at the top and that the side of the square terminal block is vertical.

Pressure Limit Switch

This service is indicated if a circuit check shows the switch is not closed or if the switch is opening at too low a pressure. It was factory set to open at 15 p.s.i. and to close at 6 p.s.i.

To remove the switch for service, disconnect the tubing from the bottom of the unit and remove two screws with nuts which anchor the mounting bracket for the unit.

The cut-out and cut-in pressure setting of the switch is shown on the dial and is adjustable with slotted square shanks at the top of the case. Adjust the cut-out pressure setting first. If this adjustment does not cure the trouble, replace the complete unit.

Magnetic Contactor

This service is indicated if a circuit check shows power at the proper voltage is supplied to the magnet coil terminals, yet the contactor fails to open or close as it should or it chatters or hums.

A chatter or a humming noise usually is the result of dirt or lint on the armature pole faces or around the armature core so that the magnet coil does not completely pull the armature into the sealed position. This can usually be corrected by blowing or wiping the pole faces clean. The pole faces are at the bottom of the contactor directly behind the magnet coil terminals.

To inspect the contactor contact points, on 70 and 125 ampere contactors, remove the grey color plastic arc shield at the top of the contactor by removing the two screws holding it in place. The 50 ampere contactor has no arc shield. For a better view or for other service, remove the two wires to the magnet coil at the coil terminals (terminals at the bottom of the contactor), remove the two screws holding the coil in place and lift the coil and armature assembly out.

Pitted contacts should be replaced. These may be obtained from Vulcan-Hart.

Electric Heating Elements

This service is indicated if a check with an ammeter shows the K.W. input is not proper. Proper amperage for each K.W. input is shown under ELECTRICAL CONNECTIONS in this manual.

– 10 –

Page 9 Page 11
Image 10
Page 9 Page 11
Contents Models Table of Contents Unpacking InstallationInstallation Codes and Standards LocationElectrical Connections Electrical Data ChartCanada Faucet Connection OptionalBefore First USE OperationControls Filling the Water Jacket Using the KettleCleaning Kettle Food DRAW-OFF ValveSight Glass Assembly Maintenance Periodic MaintenanceGeneral Notes ServiceServicing Procedures ThermostatMagnetic Contactor Pressure Limit SwitchElectric Heating Elements Service and Parts Information Replace On-Off SwitchReplace Signal Light Replace Pressure GaugeParts List Part Number Description RequiredFor Units Shipped Before DECEMBER, 1980, Consult the Factory Wiring Diagram Wiring Diagram Wiring Diagram Wiring Diagram Dimensions and Service Connections Dimensions EnglishPage Form 30965 Rev. a

ES25 ML-52642 specifications

The Vulcan-Hart ES25 ML-52642 is a state-of-the-art electric steamer designed for efficiency and reliability in commercial kitchens. This model epitomizes modern culinary technology, catering specifically to the needs of restaurants, hotels, and institutional foodservice operations. It is engineered for high performance while ensuring ease of use and maintenance.

One of the main features of the Vulcan-Hart ES25 is its advanced steaming capabilities. With a powered steam generation system, food is cooked quickly and evenly, preserving moisture, flavor, and nutrients. The steamer operates at a consistent temperature, allowing operators to prepare various dishes simultaneously without risk of flavor transfer or overcooking. Its large cooking chamber provides ample space, accommodating multiple trays of food, which maximizes productivity during peak serving times.

The ES25 comes equipped with programmable controls, allowing chefs to set precise cooking times and temperatures for various dishes. This feature not only enhances cooking accuracy but also helps maintain food quality, reducing the chance of human error. The digital display provides clear visibility of cooking settings and time remaining, making it user-friendly even in fast-paced kitchen environments.

Energy efficiency is another significant characteristic of the Vulcan-Hart ES25 ML-52642. The unit is designed to consume less energy compared to traditional steamers, making it an environmentally friendly choice. It also features an automatic water fill system that ensures the steamer operates at optimal levels without manual intervention, saving time and labor costs.

Safety is paramount in busy kitchens, and the Vulcan-Hart ES25 incorporates several safety features. It includes a safety lock on the door to prevent steam burns and a built-in pressure relief valve that regulates internal pressure, ensuring the unit operates safely at all times.

The construction of the Vulcan-Hart ES25 is another highlight, made from durable stainless steel that resists corrosion and allows for easy cleaning. Its compact design ensures it fits into various kitchen layouts without compromising workspace.

In summary, the Vulcan-Hart ES25 ML-52642 is a high-performance electric steamer that combines advanced technology with practical features, making it an invaluable asset for any commercial kitchen looking to enhance efficiency, safety, and food quality.
Top Page Image Contents