Boiler Sequence Solid State | Chromalox CES-6 manual

OPTIONAL EQUIPMENT FOR STEAM BOILERS

IF A CONTROLLER SEEMS TO OPERATE IMPROPERLY If the controller is suspected of operating improperly, it may be

further checked as follows:

1.Leave the controller installed where it is, but disconnect all power to the boiler.

2.Loosen the cover screw below the main scaleplate and remove the cover.

3.Disconnect the wires from the controller.

4.Connect an ohmmeter between controller terminals B and W to measure the resistance of the potentiometer in the controller. The ohmmeter should read about 135 ohms on an L91B.

5.Connect the ohmmeter between controller terminals W and R and raise the set point of the controller above the actual pressure being measured. The ohmmeter should read the full value of the poten- tiometer measured in step 4 (135 ohms for an L91B).

6.Slowly lower the set point of the controller while observing the ohmmeter reading. The resistance should drop to zero at some set point below the actual pressure.

7.An approximation of the proportioning range can be made by observing the change in set point required for a resistance change from zero to full value.

8.When the controller is operating properly, reconnect the wires, replace the cover, tighten the cover screw, and reset the controller to the desired value.

9.Reconnect power to the controlled motor.

Main Scale	Proportioning Range
Adjusting	Proportioning Range
Screw	Adjusting Screw

Main Scale		R

		W
Setting		B
Indicator

BOILER SEQUENCE — SOLID STATE

Solid State Progressive Sequencer

The solid state progressive sequencer provides accurate elec- tronic control of multi-stage loads of the type used in Chromalox steam boilers. It features progressive sequencing (first on-first off) which equalizes the operating time of each load. This control gives visual indication of each energized stage by means of integral solid state light emitting diodes. In the event of power interrup- tion, all heating elements are immediately de-energized for safety. When power resumes, the control will restage the loads one at a time.

The solid state sequencer operates on 120V AC/60 Hz and each output is relay switched with a load rating of 125 VA at 120V AC.

The input to the sequencer is a 0-135 OHM potentiometer sup- plied on the operating pressure control. The sequencer has a sen- sitivity control which is adjustable from min. to max. This sensi- tivity control defines the amount of resistance (pressure) deviation allowed before adding or subtracting a load. Potentiometer resis- tance should decrease with increasing pressure. Connections are made to red and white terminals of proportional pressure control. See Wiring Diagram 337-300164-452 for Boiler With Solid State Sequencer.

Ohmmeter

Set Point

Increase

W R B

Solid State Sequencer

Increases to

135 Ohms

Terminals are not Labeled, but Screw-Heads are Color Coded Red (R), White (W) and Blue (B).

Typical wiring for boilers equipped with Auto Blowdown System and/or

Solid State Sequencer.

480V 3Ø 60 HZ

Optional Transformer

		Boiler
		On
	Auto
	Blowdown
	System
	Sequencer	Feed Water
	Sequencer	Solenoid Valve
	Pressure	Heater Contactor
	Control	Heater Contactor
	Control
		Heater Contactor
	480/120V	Heater Contactor
	5 Step	Heater Contactor
	Control

CES-6 specifications

The Chromalox CES-6 is a state-of-the-art electric heating solution designed for industrial and commercial applications. This versatile unit offers a range of features that enhance its efficiency, durability, and ease of use. With a focus on advanced technology, the CES-6 is engineered to meet the demands of various heating requirements, from process heating to temperature maintenance.

One of the standout features of the CES-6 is its robust construction. Built to withstand harsh environments, it is made from high-quality materials that ensure longevity and reliability. The unit's enclosure is resistant to moisture and dust, making it ideal for applications in challenging conditions. This durability ensures that the CES-6 can operate effectively in settings such as manufacturing plants, warehouses, and outdoor installations.

The CES-6 leverages cutting-edge heating technologies, including advanced thermal management systems. This feature allows for precise temperature control, ensuring optimal performance and energy efficiency. By utilizing programmable temperature settings, users can customize their heating profiles to match specific operational needs, reducing energy consumption and operating costs.

Another significant characteristic of the CES-6 is its ease of installation and maintenance. Designed with user convenience in mind, the unit comes equipped with adaptable mounting options and user-friendly interfaces. This makes it straightforward for technicians to install and service, minimizing downtime and enhancing productivity.

Safety is a top priority with the CES-6, which incorporates multiple safety features to protect users and equipment. Over-temperature protection, built-in alarm systems, and fail-safe mechanisms are just a few of the safeguards included. These features not only enhance user safety but also contribute to the overall integrity of the heating process.

In conclusion, the Chromalox CES-6 stands out in the market for its combination of durability, advanced technology, and user-friendly design. Its robust construction makes it suitable for demanding industrial settings, while its energy-efficient heating capabilities and ease of installation ensure it meets the needs of a wide range of applications. Whether you are looking for reliable heating for your manufacturing processes or need a dependable solution for temperature maintenance, the CES-6 is an exceptional choice that delivers performance and efficiency.