INSTALLATION

3.Whether vertically or horizontally, the heater should be rigidly mounted so that vibration is at a minimum since excessive vibration will result in erratic thermostat operation. The NWHO-6 is provided with mounting lugs to support the heat- ing chamber. (See photo.)

4.By using a slotted mounting assembly on either of the lugs, the heater chamber will be permitted to expand with increas- ing temperature.

5.DANGER: Hazard of Fire. Provide minimum of 6” spacing from chamber and related piping to nearest combustible material. Avoid operation of heater near combustible fluids or in com- bustible vapor or gas laden atmosphere. NOTE: Contact factory for heaters suitable for use in hazardous locations.

6.Provide adequate space at terminal end to permit withdrawal of the heater from chamber should servicing be required.

WIRING

WARNING: Hazard of Electric Shock. Any installation involving electric heaters must be grounded to earth to eliminate shock hazard.

1.Be sure line voltage matches heater voltage (on nameplate).

2.Electric wiring to heater must be installed in accordance with local and National Electrical Codes.

3.Power controllers must be used when heaters are rated 3 phase and when the heater amperage exceeds to rating of the thermostat.

4.Refer to Wiring Diagram Table B, for the proper wiring diagram for connecting heater.

Wiring Diagrams - Table B

Model

240V,

240V,

480V,

480V,

 

1ø

Fig.

3ø

 

Fig.

1ø Fig.

3 ø

 

Fig.

 

 

 

 

 

 

 

 

 

 

NWHO-61215

 

–

2

–

5

NWHO-61515

 

–

2

–

5

NWHO-62015

 

–

3

–

5

NWHO-62515

 

–

3

–

5

NWHO-63015

 

–

3

–

5

NWHO-60825

 

1

2

4

5

NWHO-61025

 

–

2

–

5

NWHO-61225

 

–

2

–

5

NWHO-61525

 

–

2

–

5

NWHO-61825

 

–

2

–

5

 

 

 

 

 

 

 

 

 

 

Note: Use wire size and type specified by N.E.C. 480V and 550V heaters require 600V wire, per N.E.C. Contactors and wire supplied by customer.

 

 

 

Contactor

 

 

 

1L1

 

 

 

1L2

 

Contactor

 

1L3

Contactor

 

L1

 

Line

 

L2

Contactor

 

L3

 

 

2L1

 

 

 

 

 

 

2L2

 

 

120V, 240V

2L3

120V, 240V

Thermostat

 

 

 

Thermostat

 

 

120V

 

 

 

 

 

 

or

 

 

 

240V

 

 

 

Thermostat

Figure 1 – NWHO

Figure 2 – NWHO6

 

Figure 3 – NWHO6

240V, 1ø

240V, 3ø

 

240V, 2-3ø

 

 

Contactor

 

Contactor

 

 

L1

 

 

 

Line

 

 

L2

 

 

L3

 

 

 

 

120V, 240V

 

120V, 240V

 

Thermostat

 

Thermostat

Figure 4 – NWHO6

 

Figure 5 – NWHO6

 

480V, 1ø

 

480V, 3ø

 

Note: Dotted lines indicate “customer furnished.” However, Thermostat could have been furnished by Chromalox if so specified on the order.

Page 1 Page 3
Page 2
Image 2
Chromalox NWHO-6 installation instructions Wiring Diagrams Table B
Page 1 Page 3

NWHO-6 specifications

The Chromalox NWHO-6 is an innovative heating solution designed for various industrial and commercial applications. Built with advanced features and robust technologies, this heating element enhances efficiency and performance, making it a go-to choice for many organizations.

One of the primary features of the NWHO-6 is its exceptional durability. Constructed from high-quality materials, it is engineered to withstand harsh environments, including exposure to moisture, chemicals, and extreme temperatures. This resilience ensures a longer operational life, reducing the need for frequent replacements and maintenance.

The NWHO-6 utilizes advanced heating technologies, including flexible heating configurations. This allows users to customize the output based on specific requirements, making the unit highly versatile. Whether used for process heating, freeze protection, or temperature maintenance, the NWHO-6 adapts seamlessly to various applications.

Energy efficiency is another key characteristic of the Chromalox NWHO-6. The design incorporates innovative heat distribution mechanisms that optimize energy consumption while providing consistent heating output. This efficiency not only lowers operational costs but also contributes positively to environmental sustainability by reducing energy waste.

Safety is paramount in industrial heating solutions, and the NWHO-6 excels in this area as well. With built-in safety features such as thermal overload protection and a reliable control system, the unit minimizes risks associated with overheating or failure. This focus on safety helps to protect both personnel and equipment, ensuring a secure working environment.

The NWHO-6 also features user-friendly integration options. It can be easily implemented into existing systems, offering compatibility with various industrial controls and automation systems. This simplicity in integration makes it ideal for retrofitting or upgrading heating solutions without extensive modifications.

Another advantage is the compact design of the NWHO-6, which allows for easy installation in tight spaces. The streamlined profile ensures that even in crowded environments, the heating unit can be effectively utilized without compromising operational space.

In conclusion, the Chromalox NWHO-6 stands out as a superior heating solution, characterized by its durability, energy efficiency, safety features, and ease of integration. Whether in manufacturing, food processing, or any other industrial sector, the NWHO-6 provides reliable and effective heating, making it an essential component for a wide array of applications. Organizations seeking to enhance their heating solutions will find the NWHO-6 to be an invaluable asset, driving operational efficiency and reducing long-term costs.
Top Page Image Contents