WIRING

WARNING: Hazard of Shock. Any installation involving electric heaters must be effectively grounded in accordance with the National Electrical Code to elim- inate shock hazard.

1.Electrical wiring to heater must be installed in accordance with the National Electrical Code and local electrical codes by a qualified person as defined in the NEC.

2.When element wattages are not equal, heaters must not be con- nected in series.

3.Electrical wiring to heater should be connected in rigid conduit or in flexible hose to keep corrosive vapors and liquids out of the ter- minal housing. If high humidity is encountered, the conduit should slope down away from the heater.

4.If flexible cord is employed, a watertight connector should be used for entry of the cord into the terminal box. Outdoor applications require liquid-tight conduit and connectors.

5.Bring the power line wires through the opening in the terminal box. Connect line wire as shown in the diagram. (Figures 1 thru 3)

3 Pole Contactors

Line

Control

Volts

3 Heating Elements

Thermostat

2 Pole Contactors

Line

Control

Volts

1, 2, or 3 Heating Elements

in Series

or Parallel

Thermostat

3 Pole Contactors

Line

Control

Volts

3 Heating Elements

Thermostat

Figure 1 — For Three Phase WYE Heaters

Figure 2 — For Single Phase Heaters

Figure 3 — For Three Phase Delta Heaters

Note: Dotted lines indicate “customer furnished.”

OPERATION

1.Do not heat materials that are corrosive to the heating element sheath or chamber. For oil heating service, drain may be provided from bottom of chamber. Check factory.

2.Terminal ends of heater must be protected from drippings conden- sation spray or direct spill-over of material whose presence at the terminals may damage heater electrical insulation. Liquid-tight ter-

minal enclosures are available to protect heater. Check with local sales representative.

3.If foreign material is carried by the oil flow, install suitable filters in the inlet pipe line to the heater.

4.Do not allow heater to operate when fluid flow is interrupted.

MAINTENANCE

WARNING: Hazard of Shock. Disconnect all power before servicing heater.

1.Remove heating element assembly periodically to check heater sheath for corrosion or excessive oxidation. Correct operating con- ditions to minimize sheath deterioration.

2.Periodically check temperature control and limit control operation to insure accurate and safe process operation.

3.Check all electrical connections periodically and retighten connec- tions which may have loosened in service. Replace wire terminals which show signs of oxidation which would interfere with estab- lishment of reliable electrical connections.

RENEWAL PARTS IDENTIFICATION

Thermostat 60-250˚F

...................................................300-048518-013

Limited Warranty:

Please refer to the Chromalox limited warranty applicable to this product at

http://www.chromalox.com/customer-service/policies/termsofsale.aspx.

2150 N. RULON WHITE BLVD., OGDEN, UT 84404

 

Phone: 1-800-368-2493

www.chromalox.com

TA - U0 - EF

 

 

Litho in U.S.A.

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Chromalox NWHMTO specifications Wiring, Operation, Maintenance, Renewal Parts Identification, Limited Warranty
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NWHMTO specifications

Chromalox NWHMTO is an innovative product designed to meet the needs of various industrial heating applications. As part of Chromalox's esteemed range of products, the NWHMTO model stands out due to its advanced features, robust design, and versatile technologies.

One of the main features of the NWHMTO is its high efficiency. This heater is designed to provide maximum thermal transfer while minimizing energy consumption. With a built-in control system, users can easily adjust the temperature settings to optimize heating processes, leading to significant savings on energy costs. The variable watt density capability further enhances its efficiency, allowing for precise temperature control according to the specific requirements of various applications.

The NWHMTO employs cutting-edge technology to ensure optimal performance. It integrates advanced materials that are engineered to withstand high temperatures and harsh environments. This characteristic not only prolongs the lifespan of the heater but also ensures reliable performance even under demanding conditions. The robust construction of the NWHMTO allows it to operate in a variety of industrial settings, including chemical processing, food production, and plastic fabrication.

Safety is a paramount consideration in the design of the NWHMTO. It incorporates multiple safety features, including over-temperature protection and leak detection systems. These features work together to mitigate risks and provide operators with peace of mind while using the heater. Additionally, the NWHMTO is designed for easy integration into existing systems, making it a practical choice for upgrading or replacing outdated heating equipment.

Another characteristic of the NWHMTO is its flexibility. It can be configured for a broad range of applications, including process heating, thawing, and melt-out services. The modular design allows for customization based on the user's specific heating needs. As a result, the NWHMTO can adapt to various industrial processes, making it a versatile tool for engineers and operators alike.

In summary, the Chromalox NWHMTO represents a significant advancement in industrial heating technology. With its high efficiency, robust construction, advanced safety features, and versatility, it meets the diverse demands of modern industrial applications. Companies seeking to enhance their heating processes will find the NWHMTO to be a reliable and effective solution.
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