Chromalox CAS-20CM manual Schematic Wiring Diagram, Operation, Adjusting Pressure Controls

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SCHEMATIC WIRING DIAGRAM

Wire Color Code —

B

= Black

W = White

R

= Red

O

= Orange

Y

= Yellow

GR = Green

BL = Blue

 

HTR

 

O

 

OPERATION

SOLID STATE FLOATLESS LIQUID LEVEL CONTROL SYSTEM

This boiler is equipped with a solid state, floatless liquid level control which operates by sensing the electrical resistance of water. Note: Control will not work with de-ionized or demineral- ized water. Two probes are provided. The HI probe activates and controls the feed water relay. The LOW probe is a safety back-up probe that turns off the power to the element in the event of low water. A 12 volt potential is established between each probe and ground. The presence or absence of water generates a small signal that is amplified and fed to a SCR. The SCR, in turn, activates a relay, depending on the function and the water level.

ADJUSTING PRESSURE CONTROLS

Chromalox boilers are supplied with operating and high limit pres- sure controls. One is used for controlling the operating pressure of the boiler while the other is used as a high limit control.

MANUAL BLOWDOWN INSTRUCTIONS

Blowdown is an essential part of boiler operation. It is the best preventive maintenance you can give your boiler and will add years of life to the unit. Make sure a blowdown schedule is estab- lished and followed regularly.

Blowdown will remove accumulated hard water scale and dis- lodge scale from water heating surface thereby insuring efficient heating. In extremely hard water areas blowdown is necessary

once a day. In soft water areas, once each week. If water is known to be corrosive, consult water treating specialists to recommend water treatment needed to insure corrosion free boiler operation. If there is a particular problem which applies to your own local water condition other than mineral content, take this into consideration in determining what schedule is to be followed.

1.At the end of the working day turn switch to the OFF position and close water supply valve. De-energize wall mounted safe- ty switch (main power supply).

2.If blowing down into a receptacle, cover receptacle to prevent splash of scalding water.

3.It is preferable to connect the blowdown valve directly into a drainage system. If this is done, the boiler can be discharged at operating pressure. However, check local codes and suitability of drainage system before connecting.

4.When blowdown is complete and boiler is drained (a) close the blowdown valve; (b) open water supply valve; (c) put boiler switch in the ON position; and, (d) close wall mounted safety switch.

5.When refilling is complete, turn off the boiler switch unless further operation is desired.

The use of chemical boiler cleaning compounds in these boilers voids all warranties unless approved by Chromalox, Inc.

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Contents Installation, Operation Wiring InstallationSolid State Floatless Liquid Level Control System Schematic Wiring DiagramAdjusting Pressure Controls OperationMaintenance Trouble Shooting HintsInstructions for Element Replacement Heating Elements Renewal Parts IdentificationLimited Warranty

CAS-20CM specifications

Chromalox CAS-20CM is a cutting-edge solution designed for advanced thermal management and process heating applications. As a well-recognized brand in the heating industry, Chromalox has engineered this system to incorporate innovative technologies that enhance performance, efficiency, and reliability.

One of the standout features of the CAS-20CM is its versatile configuration. The unit can be utilized for a variety of heating applications, making it ideal for industries such as food processing, pharmaceuticals, and chemical manufacturing. The modular design allows for easy integration into existing systems and processes, ensuring seamless operation.

The CAS-20CM employs advanced control technologies that offer precise temperature regulation. With sophisticated digital controllers, users can monitor and regulate temperatures with pinpoint accuracy, significantly improving the consistency and quality of the products being processed. The ability to program temperature profiles also facilitates automated operations, reducing the need for manual intervention and streamlining workflow efficiency.

Energy efficiency is a key characteristic of the CAS-20CM. Utilizing high-quality insulation and advanced heating elements, this system minimizes energy loss, resulting in lower operational costs. Enhanced efficiency not only benefits the bottom line but also contributes to a more sustainable operation by reducing overall energy consumption.

Safety is paramount in the design of the CAS-20CM. The system includes multiple safety features, such as over-temperature protection and fault diagnostics, which help prevent potential hazards in the workplace. These features not only ensure compliance with industry standards but also provide peace of mind for operators.

The construction of the CAS-20CM is robust, with durable materials that can withstand harsh environments while providing longevity and reliable performance. This resilience makes it suitable for various applications, even in challenging conditions.

In summary, the Chromalox CAS-20CM stands out due to its versatility, advanced control technologies, energy efficiency, safety features, and robust construction. It is a highly effective solution for those seeking reliable thermal management systems that can adapt to the evolving needs of modern industries. With an emphasis on innovation and quality, the CAS-20CM continues to set a benchmark in the heating industry, making it a wise choice for both new installations and upgrades in existing systems.